This environment is part of the gamma environments. Please read that page first for general information.
| Actions | Agents | Manual Control | Action Shape | Action Values | Observation Shape | Observation Values | Num States |
|---|---|---|---|---|---|---|---|
| Either | 20 | Yes | (1,) | [0, 2] | (200, 120, 3) | (0, 255) | ? |
from pettingzoo.gamma import pistonball_v0
agents= ["piston_0", "piston_1", ..., "piston_19"]
AEC diagram
This is a simple physics based cooperative game where the goal is to move the ball to the left wall of the game border by activating any of the twenty vertically moving pistons. Pistons can only see themselves, and the two pistons next to them. Thus, pistons must learn highly coordinated emergent behavior to achieve an optimal policy for the environment. Each agent get’s a reward that is a combination of how much the ball moved left overall, and how much the ball moved left if it was close to the piston (i.e. movement it contributed to). Balancing the ratio between these appears to be critical to learning this environment, and as such is an environment parameter. The local reward applied is 0.5 times the change in the ball’s x-position. Additionally, the global reward is change in x-position divided by the starting position, times 100. For each piston, the reward is .02 * local_reward + 0.08 * global_reward. The local reward is applied to pistons surrounding the ball while the global reward is provided to all pistons.
Pistonball uses the chipmunk physics engine, and are thus the physics are about as realistic as Angry Birds.
Keys a and d control which piston is selected to move (initially the rightmost piston is selected) and keys w and s move the piston in the vertical direction.
pistonball.env(local_ratio=.02, continuous=False, random_drop=True,
starting_angular_momentum=True, ball_mass = .75, ball_friction=.3,
ball_elasticity=1.5, max_frames=900)
about arguments
local_ratio: Weight applied to local reward and global reward. Global reward weight will always be 1 - local reward weight.
continuous: If true, piston action is a real value between -1 and 1 which is added to the piston height. If False, then action is a discrete value to move a unit up or down.
random_drop: If True, ball will initially spawn in a random x value. If False, ball will always spawn at x=800
starting_angular_moment: If True, ball will spawn with a random angular momentum
ball_mass: Sets the mass of the ball physics object
ball_friction: Sets the friction of the ball physics object
ball_elasticity: Sets the elasticity of the ball physics object
Discrete Leaderboard:
| Average Total Reward | Method | Institution | Paper | Code |
|---|---|---|---|---|
| x | x | x | x | x |
Continuous Leaderboard:
| Average Total Reward | Method | Institution | Paper | Code |
|---|---|---|---|---|
| x | x | x | x | x |


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Hereford Student Senate
Events
Committees
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Minutes
(current)
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Meeting stuff.
Minutes 2/26/17
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Perrin needs to put his files in the shared folder
Minutes 3/12/17
And can we have the collapsing panels automate as we add more?


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state is set with javascript
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When is War of the Worlds set and where was it filmed?
BBC’s hotly-anticipated War of the Worlds aired its first episode last week.
The series, starring Poldark’s Eleanor Tomlinson, Rafe Spall and Robert Carlyle, re-tells what’s considered the first ever tale of a conflict between mankind and extra-terrestrial life.
Where was the show filmed?
When is the War of the Worlds set?
In the original book written by HG Wells, the majority of the story takes place in Woking, Surrey where Wells was based at the time of writing.
He wrote it for a contemporary audience so the story is set in Victorian times, between 1895 and 1897 – when he wrote the story.
The BBC’s latest adaptation of the show – which launched to nearly five million viewers last Sunday – is sticking with the original setting, but the crew went elsewhere to film the show.
War of the Worlds filming locations
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Liverpool
The location manager for the show, Andrew Bainbridge, told Radio Times that the majority of the shooting was done in Liverpool.
The show’s director, Craig Viveiros, explained why Liverpool was perfect for the shoot.
He told Radio Times that the city’s benefits included ‘the sort of architecture… in close proximity, and being able to close it off to shoot – to dress it, to bring the horse and carts in.’
St George’s Hall – across from Liverpool Lime Street station – features heavily in the three-part series.
Great Budworth, Cheshire
The picturesque little village was used as a replica for Woking.
Viveiros explained to Radio Times that the village had to be shut off for three weeks while filming took place.
He said: ‘the challenge there was to bring all the villagers onside. We were going to be there for three weeks. We had to completely close the village traffic. That was quite a number.’
Ainsdale Nature Reserve, Southport
Some shots were taken at the nature reserve in the borough of Sefton.
In a fortunate bit of timing, director Viveiros said how ‘the heather actually needed to be burnt, so they were welcoming to us.’
Delamere Forest, Cheshire
The dense forest, located between Northwich and Chester, provided the perfect location for scenes showing the aftermath of the alien invasion.
War of the Worlds continues tonight at 9pm on BBC One.
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Rotation 1
Rotation 1:
Penny Holding Device
We were told to seperate into groups, and that our objective was to suspend a cup, which could hold as many pennies as possible. Our resources included: a cup. some string, a few straws, and some tape. I figured we could overlap the straws in our apparatus, which would give us a better system of support. We suspended the string over the overlapping straws, and made the base whith two layers of straws to offer more support. In the end, we were relatively successful and built a apparatus (pictured above) which was able to hold a fairly large amount of pennies (the full cup), with it collapsing when it had been filled to capacity. Looking back, the only group more successful than us used triangular shapes which offered much more support. Only discovering this after, we found that triangles are offer the most support and strength to structures, often being used even in large scale buildings.
<For another team excersise, we were told to stop a marble, from rolling off a table, trying to go as far as you could on the table. We had a few pencils, a few sheets of paper, a few straws, and the zone drawn out in tape where the marble needed to stop. We created the back of the landing zone, by using two pencils and the sides with pencils. In order for the marble to not roll back out we created a ramp. In orde to get the marble to the landing zone we taped the paper into cyndrilical shapes which we taped toward the landing zone. In the end, it was a success!
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AP Top Entertainment News at 6:08 a.m. EST
TV comedy greats take a bow, make 'em laugh at ceremony
‘Uncut Gems,' ‘The Lighthouse' top Spirit Awards nominations
Winfrey, Coates among speakers at tribute to Toni Morrison
Ex-'American Idol' contestant gets nearly 4 years in prison
Coldplay decides not to tour for environmental reasons
First Marvel Comics issue sells in Texas for $1.26 million
James Taylor audio memoir coming early next year
Trump awards medals to Jon Voight, Alison Krauss and others
Country star Sam Hunt arrested for DUI in Tennessee
Prince Andrew faces new pressure to talk to US about Epstein
Copyright 2019 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.


Add all your classes you want to keep track of for the semester. Each class will have a customizable colour to easily identify it.
For each class add its assignments, midterms, exams, papers, labs, finals, etc. Enter their respective weights and maximum total grade. As you recieve your grades throughout the semester, enter the marks into GradeAid and you will instantly see what your current grade in the class is.
For each mark in a class, GradeAid will automatically let you know what you need to reach your target grade. Simply enter your desired final grade for the class, and you will see what mark you need on the next assignment/exam/paper/etc.
Keep your life organized by creating a separate schedule for each semester. Compare each semester to see if your grades are improving.


--- layout: example categories: example/v1.0.0 version: v1.0.0 title: Mask a feature description: Show only a certain feature by inverting a shape tags: - vector ---


BlockRx is a tool that helps to streamline and secure transactions
between patients and medical practitioners. It is built
on the Ethereum blockchain network to facilitate fast transactions,
proof of medical work, and patient history securely and safely.


Migration Guide 2.3.x to 2.4.x
The 2.4 release contains some structural changes that require some simple, mechanical source-level changes in client code.
When migrating from earlier versions you should first follow the instructions for migrating 1.3.x to 2.0.x and then 2.0.x to 2.1.x and then 2.1.x to 2.2.x and then 2.2.x to 2.3.x.
Binary Compatibility
Akka 2.4.x is backwards binary compatible with previous 2.3.x versions apart from the following exceptions. This means that the new JARs are a drop-in replacement for the old one (but not the other way around) as long as your build does not enable the inliner (Scala-only restriction).
The following parts are not binary compatible with 2.3.x:
- akka-testkit and akka-remote-testkit
- experimental modules, such as akka-persistence and akka-contrib
- features, classes, methods that were deprecated in 2.3.x and removed in 2.4.x
The dependency to Netty has been updated from version 3.8.0.Final to 3.10.3.Final. The changes in those versions might not be fully binary compatible, but we believe that it will not be a problem in practice. No changes were needed to the Akka source code for this update. Users of libraries that depend on 3.8.0.Final that break with 3.10.3.Final should be able to manually downgrade the dependency to 3.8.0.Final and Akka will still work with that version.
Advanced Notice: TypedActors will go away
While technically not yet deprecated, the current akka.actor.TypedActor support will be superseded by the Akka Typed project that is currently being developed in open preview mode. If you are using TypedActors in your projects you are advised to look into this, as it is superior to the Active Object pattern expressed in TypedActors. The generic ActorRefs in Akka Typed allow the same type-safety that is afforded by TypedActors while retaining all the other benefits of an explicit actor model (including the ability to change behaviors etc.).
It is likely that TypedActors will be officially deprecated in the next major update of Akka and subsequently removed.
Removed Deprecated Features
The following, previously deprecated, features have been removed:
akka-dataflow
akka-transactor
durable mailboxes (akka-mailboxes-common, akka-file-mailbox)
Cluster.publishCurrentClusterState
akka.cluster.auto-down, replaced by akka.cluster.auto-down-unreachable-after in Akka 2.3
Old routers and configuration.
Note that in router configuration you must now specify if it is a pool or a group in the way that was introduced in Akka 2.3.
Timeout constructor without unit
JavaLoggingEventHandler, replaced by JavaLogger
UntypedActorFactory
Java API TestKit.dilated, moved to JavaTestKit.dilated
Protobuf Dependency
The transitive dependency to Protobuf has been removed to make it possible to use any version of Protobuf for the application messages. If you use Protobuf in your application you need to add the following dependency with desired version number:
"com.google.protobuf" % "protobuf-java" % "2.5.0"
Internally Akka is using an embedded version of protobuf that corresponds to com.google.protobuf/protobuf-java version 2.5.0. The package name of the embedded classes has been changed to akka.protobuf.
Added parameter validation to RootActorPath
Previously akka.actor.RootActorPath allowed passing in arbitrary strings into its name parameter, which is meant to be the name of the root Actor. Subsequently, if constructed with an invalid name such as a full path for example (/user/Full/Path) some features using this path may transparently fail - such as using actorSelection on such invalid path.
In Akka 2.4.x the RootActorPath validates the input and may throw an IllegalArgumentException if the passed in name string is illegal (contains / elsewhere than in the begining of the string or contains #).
TestKit.remaining throws AssertionError
In earlier versions of Akka TestKit.remaining returned the default timeout configurable under "akka.test.single-expect-default". This was a bit confusing and thus it has been changed to throw an AssertionError if called outside of within. The old behavior however can still be achieved by calling TestKit.remainingOrDefault instead.
EventStream and ManagedActorClassification EventBus now require an ActorSystem
Both the EventStream (Scala, Java) and the ManagedActorClassification, ManagedActorEventBus (Scala, Java) now require an ActorSystem to properly operate. The reason for that is moving away from stateful internal lifecycle checks to a fully reactive model for unsubscribing actors that have Terminated. Therefore the ActorClassification and ActorEventBus was deprecated and replaced by ManagedActorClassification and ManagedActorEventBus
If you have implemented a custom event bus, you will need to pass in the actor system through the constructor now:
import akka.event.ActorEventBus
import akka.event.ManagedActorClassification
import akka.event.ActorClassifier
final case class Notification(ref: ActorRef, id: Int)
class ActorBusImpl(val system: ActorSystem) extends ActorEventBus with ActorClassifier with ManagedActorClassification {
type Event = Notification
// is used for extracting the classifier from the incoming events
override protected def classify(event: Event): ActorRef = event.ref
// determines the initial size of the index data structure
// used internally (i.e. the expected number of different classifiers)
override protected def mapSize: Int = 128
}
If you have been creating EventStreams manually, you now have to provide an actor system and start the unsubscriber:
val bus = new EventStream(system, true)
bus.startUnsubscriber()
Please note that this change affects you only if you have implemented your own buses, Akka's own context.eventStream is still there and does not require any attention from you concerning this change.
FSM notifies on same state transitions
When changing states in an Finite-State-Machine Actor (FSM), state transition events are emitted and can be handled by the user either by registering onTransition handlers or by subscribing to these events by sending it an SubscribeTransitionCallBack message.
Previously in 2.3.x when an FSM was in state A and performed a goto(A) transition, no state transition notification would be sent. This is because it would effectively stay in the same state, and was deemed to be semantically equivalent to calling stay().
In 2.4.x when an FSM performs an any goto(X) transition, it will always trigger state transition events. Which turns out to be useful in many systems where same-state transitions actually should have an effect.
In case you do not want to trigger a state transition event when effectively performing an X->X transition, use stay() instead.
Circuit Breaker Timeout Change
In 2.3.x calls protected by the CircuitBreaker were allowed to run indefinitely and the check to see if the timeout had been exceeded was done after the call had returned.
In 2.4.x the failureCount of the Breaker will be increased as soon as the timeout is reached and a Failure[TimeoutException] will be returned immediately for asynchronous calls. Synchronous calls will now throw a TimeoutException after the call is finished.
Slf4j logging filter
If you use Slf4jLogger you should add the following configuration:
akka.logging-filter = "akka.event.slf4j.Slf4jLoggingFilter"
It will filter the log events using the backend configuration (e.g. logback.xml) before they are published to the event bus.
Inbox.receive Java API
Inbox.receive now throws a checked java.util.concurrent.TimeoutException exception if the receive timeout is reached.
Pool routers nrOfInstances method now takes ActorSystem
In order to make cluster routers smarter about when they can start local routees, nrOfInstances defined on Pool now takes ActorSystem as an argument. In case you have implemented a custom Pool you will have to update the method's signature, however the implementation can remain the same if you don't need to rely on an ActorSystem in your logic.
Group routers paths method now takes ActorSystem
In order to make cluster routers smarter about when they can start local routees, paths defined on Group now takes ActorSystem as an argument. In case you have implemented a custom Group you will have to update the method's signature, however the implementation can remain the same if you don't need to rely on an ActorSystem in your logic.
Cluster aware router max-total-nr-of-instances
In 2.3.x the deployment configuration property nr-of-instances was used for cluster aware routers to specify total number of routees in the cluster. This was confusing, especially since the default value is 1.
In 2.4.x there is a new deployement property cluster.max-total-nr-of-instances that defines total number of routees in the cluster. By default max-total-nr-of-instances is set to a high value (10000) that will result in new routees added to the router when nodes join the cluster. Set it to a lower value if you want to limit total number of routees.
For backwards compatibility reasons nr-of-instances is still used if defined by user, i.e. if defined it takes precedence over max-total-nr-of-instances.
Logger names use full class name
Previously, few places in Akka used "simple" logger names, such as Cluster or Remoting. Now they use full class names, such as akka.cluster.Cluster or akka.remote.Remoting, in order to allow package level log level definitions and ease source code lookup. In case you used specific "simple" logger name based rules in your logback.xml configurations, please change them to reflect appropriate package name, such as <logger name='akka.cluster' level='warn' /> or <logger name='akka.remote' level='error' />
Default interval for TestKit.awaitAssert changed to 100 ms
Default check interval changed from 800 ms to 100 ms. You can define the interval explicitly if you need a longer interval.
Secure Cookies
Secure cookies feature was deprecated.
AES128CounterInetRNG and AES256CounterInetRNG are Deprecated
Use AES128CounterSecureRNG or AES256CounterSecureRNG as akka.remote.netty.ssl.security.random-number-generator.
Microkernel is Deprecated
Akka Microkernel is deprecated and will be removed. It is replaced by using an ordinary user defined main class and packaging with sbt-native-packager or Lightbend ConductR. Please see Use-case and Deployment Scenarios for more information.
New Cluster Metrics Extension
Previously, cluster metrics functionality was located in the akka-cluster jar. Now it is split out and moved into a separate Akka module: akka-cluster-metrics jar. The module comes with few enhancements, such as use of Kamon sigar-loader for native library provisioning as well as use of statistical averaging of metrics data. Note that both old and new metrics configuration entries in the reference.conf are still in the same name space akka.cluster.metrics but are not compatible. Make sure to disable legacy metrics in akka-cluster: akka.cluster.metrics.enabled=off, since it is still enabled in akka-cluster by default (for compatibility with past releases). Router configuration entries have also changed for the module, they use prefix cluster-metrics-: cluster-metrics-adaptive-pool and cluster-metrics-adaptive-group Metrics extension classes and objects are located in the new package akka.cluster.metrics. Please see Scala, Java for more information.
Cluster tools moved to separate module
The Cluster Singleton, Distributed Pub-Sub, and Cluster Client previously located in the akka-contrib jar is now moved to a separate module named akka-cluster-tools. You need to replace this dependency if you use any of these tools.
The classes changed package name from akka.contrib.pattern to akka.cluster.singleton, akka.cluster.pubsub and akka.cluster.client.
The configuration properties changed name to akka.cluster.pub-sub and akka.cluster.client.
Cluster sharding moved to separate module
The Cluster Sharding previously located in the akka-contrib jar is now moved to a separate module named akka-cluster-sharding. You need to replace this dependency if you use Cluster Sharding.
The classes changed package name from akka.contrib.pattern to akka.cluster.sharding.
The configuration properties changed name to akka.cluster.sharding.
ClusterSharding construction
Several parameters of the start method of the ClusterSharding extension are now defined in a settings object ClusterShardingSettings. It can be created from system configuration properties and also amended with API. These settings can be defined differently per entry type if needed.
Starting the ShardRegion in proxy mode is now done with the startProxy method of the ClusterSharding extension instead of the optional entryProps parameter.
Entry was renamed to Entity, for example in the MessagesExtractor in the Java API and the EntityId type in the Scala API.
idExtractor function was renamed to extractEntityId. shardResolver function was renamed to extractShardId.
Cluster Sharding Entry Path Change
Previously in 2.3.x entries were direct children of the local ShardRegion. In examples the persistenceId of entries included self.path.parent.name to include the cluster type name.
In 2.4.x entries are now children of a Shard, which in turn is a child of the local ShardRegion. To include the shard type in the persistenceId it is now accessed by self.path.parent.parent.name from each entry.
Asynchronous ShardAllocationStrategy
The methods of the ShardAllocationStrategy and AbstractShardAllocationStrategy in Cluster Sharding have changed return type to a Future to support asynchronous decision. For example you can ask an actor external actor of how to allocate shards or rebalance shards.
For the synchronous case you can return the result via scala.concurrent.Future.successful in Scala or akka.dispatch.Futures.successful in Java.
Cluster Sharding internal data
The Cluster Sharding coordinator stores the locations of the shards using Akka Persistence. This data can safely be removed when restarting the whole Akka Cluster.
The serialization format of the internal persistent events stored by the Cluster Sharding coordinator has been changed and it cannot load old data from 2.3.x or some 2.4 milestone.
The persistenceId of the Cluster Sharding coordinator has been changed since 2.3.x so it should not load such old data, but it can be a problem if you have used a 2.4 milestone release. In that case you should remove the persistent data that the Cluster Sharding coordinator stored. Note that this is not application data.
You can use the RemoveInternalClusterShardingData utility program to remove this data.
The new persistenceId is s"/sharding/${typeName}Coordinator". The old persistenceId is s"/user/sharding/${typeName}Coordinator/singleton/coordinator".
ClusterSingletonManager and ClusterSingletonProxy construction
Parameters to the Props factory methods have been moved to settings object ClusterSingletonManagerSettings and ClusterSingletonProxySettings. These can be created from system configuration properties and also amended with API as needed.
The buffer size of the ClusterSingletonProxy can be defined in the ClusterSingletonProxySettings instead of defining stash-capacity of the mailbox. Buffering can be disabled by using a buffer size of 0.
The singletonPath parameter of ClusterSingletonProxy.props has changed. It is now named singletonManagerPath and is the logical path of the singleton manager, e.g. /user/singletonManager, which ends with the name you defined in actorOf when creating the ClusterSingletonManager. In 2.3.x it was the path to singleton instance, which was error-prone because one had to provide both the name of the singleton manager and the singleton actor.
DistributedPubSub construction
Normally, the DistributedPubSubMediator actor is started by the DistributedPubSubExtension. This extension has been renamed to DistributedPubSub. It is also possible to start it as an ordinary actor if you need multiple instances of it with different settings. The parameters of the Props factory methods in the DistributedPubSubMediator companion has been moved to settings object DistributedPubSubSettings. This can be created from system configuration properties and also amended with API as needed.
ClusterClient construction
The parameters of the Props factory methods in the ClusterClient companion has been moved to settings object ClusterClientSettings. This can be created from system configuration properties and also amended with API as needed.
The buffer size of the ClusterClient can be defined in the ClusterClientSettings instead of defining stash-capacity of the mailbox. Buffering can be disabled by using a buffer size of 0.
Normally, the ClusterReceptionist actor is started by the ClusterReceptionistExtension. This extension has been renamed to ClusterClientReceptionist. It is also possible to start it as an ordinary actor if you need multiple instances of it with different settings. The parameters of the Props factory methods in the ClusterReceptionist companion has been moved to settings object ClusterReceptionistSettings. This can be created from system configuration properties and also amended with API as needed.
The ClusterReceptionist actor that is started by the ClusterReceptionistExtension is now started as a system actor instead of a user actor, i.e. the default path for the ClusterClient initial contacts has changed to "akka.tcp://system@hostname:port/system/receptionist".
ClusterClient sender
In 2.3 the sender() of the response messages, as seen by the client, was the actor in cluster.
In 2.4 the sender() of the response messages, as seen by the client, is deadLetters since the client should normally send subsequent messages via the ClusterClient. It is possible to pass the original sender inside the reply messages if the client is supposed to communicate directly to the actor in the cluster.
Akka Persistence
Experimental removed
The artifact name has changed from akka-persistence-experimental to akka-persistence.
New sbt dependency:
"com.typesafe.akka" %% "akka-persistence" % "2.4.20"
New Maven dependency:
<dependency>
<groupId>com.typesafe.akka</groupId>
<artifactId>akka-persistence_2.11</artifactId>
<version>2.4.20</version>
</dependency>
The artefact name of the Persistent TCK has changed from akka-persistence-tck-experimental (akka-persistence-experimental-tck) to akka-persistence-tck.
Mandatory persistenceId
It is now mandatory to define the persistenceId in subclasses of PersistentActor, UntypedPersistentActor and AbstractPersistentId.
The rationale behind this change being stricter de-coupling of your Actor hierarchy and the logical "which persistent entity this actor represents".
In case you want to preserve the old behavior of providing the actor's path as the default persistenceId, you can easily implement it yourself either as a helper trait or simply by overriding persistenceId as follows:
override def persistenceId = self.path.toStringWithoutAddress
Failures
Backend journal failures during recovery and persist are treated differently than in 2.3.x. The PersistenceFailure message is removed and the actor is unconditionally stopped. The new behavior and reasons for it is explained in Failures.
Persist sequence of events
The persist method that takes a Seq (Scala) or Iterable (Java) of events parameter was deprecated and renamed to persistAll to avoid mistakes of persisting other collection types as one single event by calling the overloaded persist(event) method.
non-permanent deletion
The permanent flag in deleteMessages was removed. non-permanent deletes are not supported any more. Events that were deleted with permanent=false with older version will still not be replayed in this version.
Recover message is gone, replaced by Recovery config
Previously the way to cause recover in PersistentActors was sending them a Recover() message. Most of the time it was the actor itself sending such message to self in its preStart method, however it was possible to send this message from an external source to any PersistentActor or PresistentView to make it start recovering.
This style of starting recovery does not fit well with usual Actor best practices: an Actor should be independent and know about its internal state, and also about its recovery or lack thereof. In order to guide users towards more independent Actors, the Recovery() object is now not used as a message, but as configuration option used by the Actor when it starts. In order to migrate previous code which customised its recovery mode use this example as reference:
// previously
class OldCookieMonster extends PersistentActor {
def preStart() = self ! Recover(toSequenceNr = 42L)
// ...
}
// now:
class NewCookieMonster extends PersistentActor {
override def recovery = Recovery(toSequenceNr = 42L)
// ...
}
Sender reference of replayed events is deadLetters
While undocumented, previously the sender() of the replayed messages would be the same sender that originally had sent the message. Since sender is an ActorRef and those events are often replayed in different incarnations of actor systems and during the entire lifetime of the app, relying on the existence of this reference is most likely not going to succeed. In order to avoid bugs in the style of "it worked last week", the sender() reference is now not stored, in order to avoid potential bugs which this could have provoked.
The previous behaviour was never documented explicitly (nor was it a design goal), so it is unlikely that applications have explicitly relied on this behaviour, however if you find yourself with an application that did exploit this you should rewrite it to explicitly store the ActorPath of where such replies during replay may have to be sent to, instead of relying on the sender reference during replay.
max-message-batch-size config
Configuration property akka.persistence.journal.max-message-batch-size has been moved into the plugin configuration section, to allow different values for different journal plugins. See reference.conf.
akka.persistence.snapshot-store.plugin config
The configuration property akka.persistence.snapshot-store.plugin now by default is empty. To restore the previous setting add akka.persistence.snapshot-store.plugin = "akka.persistence.snapshot-store.local" to your application.conf. See reference.conf.
PersistentView is deprecated
PersistentView is deprecated. Use Persistence Query instead. The corresponding query type is EventsByPersistenceId. There are several alternatives for connecting the Source to an actor corresponding to a previous PersistentView actor:
- Sink.actorRef is simple, but has the disadvantage that there is no back-pressure signal from the destination actor, i.e. if the actor is not consuming the messages fast enough the mailbox of the actor will grow
- mapAsync combined with Ask: Send-And-Receive-Future is almost as simple with the advantage of back-pressure being propagated all the way
- ActorSubscriber in case you need more fine grained control
The consuming actor may be a plain Actor or a PersistentActor if it needs to store its own state (e.g. fromSequenceNr offset).
Persistence Plugin APIs
SyncWriteJournal removed
SyncWriteJournal removed in favor of using AsyncWriteJournal.
If the storage backend API only supports synchronous, blocking writes, the methods can still be implemented in terms of the asynchronous API. Example of how to do that is in included in the See Journal plugin API for Scala or Journal plugin API for Java.
SnapshotStore: Snapshots can now be deleted asynchronously (and report failures)
Previously the SnapshotStore plugin SPI did not allow for asynchronous deletion of snapshots, and failures of deleting a snapshot may have been even silently ignored.
Now SnapshotStore must return a Future representing the deletion of the snapshot. If this future completes successfully the PersistentActor which initiated the snapshotting will be notified via an DeleteSnapshotSuccess message. If the deletion fails for some reason a DeleteSnapshotFailure will be sent to the actor instead.
For criteria based deletion of snapshots (def deleteSnapshots(criteria: SnapshotSelectionCriteria)) equivalent DeleteSnapshotsSuccess and DeleteSnapshotsFailure messages are sent, which contain the specified criteria, instead of SnapshotMetadata as is the case with the single snapshot deletion messages.
SnapshotStore: Removed 'saved' callback
Snapshot Stores previously were required to implement a def saved(meta: SnapshotMetadata): Unit method which would be called upon successful completion of a saveAsync (doSaveAsync in Java API) snapshot write.
Currently all journals and snapshot stores perform asynchronous writes and deletes, thus all could potentially benefit from such callback methods. The only gain these callback give over composing an onComplete over Future returned by the journal or snapshot store is that it is executed in the Actors context, thus it can safely (without additional synchronization modify its internal state - for example a "pending writes" counter).
However, this feature was not used by many plugins, and expanding the API to accomodate all callbacks would have grown the API a lot. Instead, Akka Persistence 2.4.x introduces an additional (optionally overrideable) receivePluginInternal:Actor.Receive method in the plugin API, which can be used for handling those as well as any custom messages that are sent to the plugin Actor (imagine use cases like "wake up and continue reading" or custom protocols which your specialised journal can implement).
Implementations using the previous feature should adjust their code as follows:
// previously
class MySnapshots extends SnapshotStore {
// old API:
// def saved(meta: SnapshotMetadata): Unit = doThings()
// new API:
def saveAsync(metadata: SnapshotMetadata, snapshot: Any): Future[Unit] = {
// completion or failure of the returned future triggers internal messages in receivePluginInternal
val f: Future[Unit] = ???
// custom messages can be piped to self in order to be received in receivePluginInternal
f.map(MyCustomMessage(_)) pipeTo self
f
}
def receivePluginInternal = {
case SaveSnapshotSuccess(metadata) => doThings()
case MyCustomMessage(data) => doOtherThings()
}
// ...
}
SnapshotStore: Java 8 Optional used in Java plugin APIs
In places where previously akka.japi.Option was used in Java APIs, including the return type of doLoadAsync, the Java 8 provided Optional type is used now.
Please remember that when creating an java.util.Optional instance from a (possibly) null value you will want to use the non-throwing Optional.fromNullable method, which converts a null into a None value - which is slightly different than its Scala counterpart (where Option.apply(null) returns None).
Atomic writes
asyncWriteMessages takes a immutable.Seq[AtomicWrite] parameter instead of immutable.Seq[PersistentRepr].
Each AtomicWrite message contains the single PersistentRepr that corresponds to the event that was passed to the persist method of the PersistentActor, or it contains several PersistentRepr that corresponds to the events that were passed to the persistAll method of the PersistentActor. All PersistentRepr of the AtomicWrite must be written to the data store atomically, i.e. all or none must be stored.
If the journal (data store) cannot support atomic writes of multiple events it should reject such writes with a Try Failure with an UnsupportedOperationException describing the issue. This limitation should also be documented by the journal plugin.
Rejecting writes
asyncWriteMessages returns a Future[immutable.Seq[Try[Unit]]].
The journal can signal that it rejects individual messages (AtomicWrite) by the returned immutable.Seq[Try[Unit]]. The returned Seq must have as many elements as the input messages Seq. Each Try element signals if the corresponding AtomicWrite is rejected or not, with an exception describing the problem. Rejecting a message means it was not stored, i.e. it must not be included in a later replay. Rejecting a message is typically done before attempting to store it, e.g. because of serialization error.
Read the API documentation of this method for more information about the semantics of rejections and failures.
asyncReplayMessages Java API
The signature of asyncReplayMessages in the Java API changed from akka.japi.Procedure to java.util.function.Consumer.
asyncDeleteMessagesTo
The permanent deletion flag was removed. Support for non-permanent deletions was removed. Events that were deleted with permanent=false with older version will still not be replayed in this version.
References to "replay" in names
Previously a number of classes and methods used the word "replay" interchangeably with the word "recover". This lead to slight inconsistencies in APIs, where a method would be called recovery, yet the signal for a completed recovery was named ReplayMessagesSuccess.
This is now fixed, and all methods use the same "recovery" wording consistently across the entire API. The old ReplayMessagesSuccess is now called RecoverySuccess, and an additional method called onRecoveryFailure has been introduced.
AtLeastOnceDelivery deliver signature
The signature of deliver changed slightly in order to allow both ActorSelection and ActorPath to be used with it.
Previously:
def deliver(destination: ActorPath, deliveryIdToMessage: Long ⇒ Any): Unit
Now:
def deliver(destination: ActorSelection)(deliveryIdToMessage: Long ⇒ Any): Unit def deliver(destination: ActorPath)(deliveryIdToMessage: Long ⇒ Any): Unit
The Java API remains unchanged and has simply gained the 2nd overload which allows ActorSelection to be passed in directly (without converting to ActorPath).
Actor system shutdown
ActorSystem.shutdown, ActorSystem.awaitTermination and ActorSystem.isTerminated has been deprecated in favor of ActorSystem.terminate and ActorSystem.whenTerminated`. Both returns a Future[Terminated] value that will complete when the actor system has terminated.
To get the same behavior as ActorSystem.awaitTermination block and wait for Future[Terminated] value with Await.result from the Scala standard library.
To trigger a termination and wait for it to complete:
import scala.concurrent.duration._ Await.result(system.terminate(), 10.seconds)
Be careful to not do any operations on the Future[Terminated] using the system.dispatcher as ExecutionContext as it will be shut down with the ActorSystem, instead use for example the Scala standard library context from scala.concurrent.ExecutionContext.global.
// import system.dispatcher <- this would not work
import scala.concurrent.ExecutionContext.Implicits.global
system.terminate().foreach { _ =>
println("Actor system was shut down")
}
Contents


About KJSCE
Set in the heart of the city, K.J. Somaiya College of Engineering is located in the Somaiya campus at Vidyavihar. Catering to about 40,000 students every day, this campus offers diverse fields of education such as Engineering, Management, Commerce, Arts, and Sciences. Along with numerous institutes, Somaiya Vidyavihar also boasts a campus covering 65 acres.
Being granted Autonomous status from the academic year 2014-15, K.J. Somaiya College of Engineering also enjoys the status of being graded ‘A’ by the NAAC (National Assessment and Accreditation Council) in 2017.
About Skream
Skream is the annual national-level sports festival of K.J. Somaiya College Of Engineering, Vidyavihar. This year, we move into the 5th edition of Skream- 5 days, 14 sports, 1 emotion. Here at Skream, we believe that sports are important and that they need to be integrated in one’s college life. Skream aims at providing a platform to budding sportspersons and bringing out the best in them. With renewed vigour and passion, we invite you to be a part of Skream and make it bigger and better than before.
Skream has evolved into a sporting institution in its 4 years of existence. A festival that started out as a small-scale sports event has now fully blossomed into one of the most premier sports festivals in India. Last year, Wasim Jaffer, Poonam Chopra, Uday Bedekar, and Ashish K. Srivastava attended the opening ceremony of Skream 2017. As we await Skream 2018, let the past be a testament to what Skream stands for, and what it stands for is unbridled sportsmanship.


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ASInsetLayoutSpec Class Reference
| Inherits from | ASLayoutSpec : NSObject |
|---|---|
| Declared in | ASInsetLayoutSpec.h |
Overview
A layout spec that wraps another layoutElement child, applying insets around it.
If the child has a size specified as a fraction, the fraction is resolved against this spec’s parent size after applying insets.
@example ASOuterLayoutSpec contains an ASInsetLayoutSpec with an ASInnerLayoutSpec. Suppose that: - ASOuterLayoutSpec is 200pt wide. - ASInnerLayoutSpec specifies its width as 100%. - The ASInsetLayoutSpec has insets of 10pt on every side. ASInnerLayoutSpec will have size 180pt, not 200pt, because it receives a parent size that has been adjusted for insets.
If you’re familiar with CSS: ASInsetLayoutSpec’s child behaves similarly to “box-sizing: border-box”.
An infinite inset is resolved as an inset equal to all remaining space after applying the other insets and child size. @example An ASInsetLayoutSpec with an infinite left inset and 10px for all other edges will position it’s child 10px from the right edge.
+ insetLayoutSpecWithInsets:child:
The amount of space to inset on each side.
+ (instancetype)insetLayoutSpecWithInsets:(UIEdgeInsets)insets child:(id<ASLayoutElement>)child
Parameters
insets |
The amount of space to inset on each side. |
|---|---|
child |
The wrapped child to inset. |
Declared In
ASInsetLayoutSpec.h


Ireland set for away Euro 2020 play-off final if they beat Slovakia
Mick McCarthy’s side will face either Bosnia or Northern Ireland, provided they win their semi-final.
by Paul FennessyIT HAS BEEN confirmed that Ireland will compete away from home in the play-off final if they win their away semi-final against Slovakia, following today’s draw in Nyon.
After failing to beat Denmark on Monday, Mick McCarthy’s side missed out on automatic qualification from their group for Euro 2020.
They must now play Slovakia away from home on 26 March in a Nations League play-off semi-final, before a potential final against either Bosnia or Northern Ireland on 31 March.
Slovakia have until 20 December to confirm the venue for the match against Ireland, with Bratislava or Trnava the most likely locations.
The details in relation to the other play-off semi-finals were also confirmed today (see below), with these games set to determine which four teams will join the 20 already confirmed for this summer’s tournament.


Step 2: Install PyCharm
Python code can be written with any text editor. There are so many editors I won’t even try to list them.
Instead I’ll say that I have become a huge fan of JetBrain’s PyCharm. As you get started they are
cool enough to provide a no cost Community Edition of Pycharm. At very least I suggest you download it now.
As you build your repertoire consider buying a license. As an individual you can drop a mere $90 and get
yearly license. If you work for a company encourage them to buy. The additional productivity is worth the
cost for your company.
There’s quite a bit of documentation on how to install Pycharm. I won’t recreate the wheel. Go Bing it.
Take a breath. I was purposely fn’ with you. Go Google it. You’ll find items like the JetBrains Official
Installation Guide.


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Inhibition of RNA polymerase II transcription in human cells by synthetic DNA-binding ligands[ see comments] Sequence-specific DNA-binding small molecules that can permeate human cells potentially could regulate transcription of specific genes.
Abstract
Multiple cellular DNA-binding transcription factors are required by HIV type 1 for RNA synthesis. Two pyrrole-imidazole polyamides were designed to bind DNA sequences immediately adjacent to binding sites for the transcription factors Ets-1, lymphoid-enhancer binding factor 1, and TATA-box binding protein. These synthetic ligands specifically inhibit DNA-binding of each transcription factor and HIV type 1 transcription in cell-free assays. When used in combination, the polyamides inhibit virus replication by > 99 % in isolated human peripheral blood lymphocytes, with no detectable cell toxicity. The ability of small molecules to target predetermined DNA sequences located within RNA polymerase II promoters suggests a general approach for regulation of gene expression, as well as a mechanism for the inhibition of viral replication.


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Peter Schlosser
All rights reserved.


The universe is a mysterious and strange place, full of even stranger and more mysterious aliens. Dandy's job is to hunt down unclassified aliens and register them for a reward. It sounds easy enough, but something weird always seems to happen along the way, like chance meetings with zombies, mystical ramen chefs, and adorable orphans. Hunting down aliens may not be easy, but it's definitely never boring. With the help of his sidekicks, the adorable robot vacuum QT and cat-like alien Meow, and his slightly-used ship the Aloha Oe, Dandy roams the galaxy searching for new alien species. What he usually finds, however, is adventure, danger, and romance, and no two journeys (or universes) are ever the same. This is Space Dandy, baby!
The main character, an easygoing yet forgetful young man working as an alien hunter whose job is to locate and apprehend rare specimens of creatures across the galaxy. He is the captain of the Aloha Oe (アロハオエ号, Arohaoe-gō), his personal spaceship. He regularly visits an intergalactic Hooters-type restaurant known as "Boobies" where he indulges in his posterior fetish and dreams of someday buying out the chain. (Source: Wikipedia)
One of Dandy's partners; a dimwit and otaku cat-like alien from the Betelgeuse binary planet, whose alien breed is named after the stellar system (Betelgeusians). Like Dandy, he enjoys ogling the girls at "Boobies" and is never seen without his touch screen phone. He also loves to eat ramen, calling himself a "ramen connoisseur". His name, "Meow", is given to him by Dandy since neither he nor QT were unable to comprehend his real name, Mymyamo. Dandy takes him into his crew thinking he could be of some "use", but he mostly lounges about. (Source: myanimelist.net)
QT is a vacuum cleaner robot on the Aloha Oe. Dandy was looking for a capable robot in the shop but ended up with QT. The robot says that he is a high-powered machine, but he's actually just a bucket of bolts. (Source: myanimelist.com)


SVV_QUERY_INFLIGHT
Use the SVV_QUERY_INFLIGHT view to determine what queries are currently running on the database. This view joins STV_INFLIGHT to STL_QUERYTEXT. SVV_QUERY_INFLIGHT does not show leader-node only queries. For more information, see Leader Node–Only Functions.
SVV_QUERY_INFLIGHT is visible to all users. Superusers can see all rows; regular users can see only their own data. For more information, see Visibility of Data in System Tables and Views.
Table Columns
| Column Name | Data Type | Description |
|---|---|---|
| userid | integer | ID of user who generated entry. |
| slice | integer | Slice where the query is running. |
| query | integer | Query ID. Can be used to join various other system tables and views. |
| pid | integer | Process ID. All of the queries in a session are run in the same process, so this value remains constant if you run a series of queries in the same session. You can use this column to join to the STL_ERROR table. |
| starttime | timestamp | Time that the query started. |
| suspended | integer | Whether the query is suspended:
0 = false; 1 =
true.
|
| text | character(200) | Query text, in 200-character increments. |
| sequence | integer | Sequence number for segments of query statements. |
Sample Queries
The sample output below shows two queries currently running, the SVV_QUERY_INFLIGHT query itself and query 428, which is split into three rows in the table. (The starttime and statement columns are truncated in this sample output.)
select slice, query, pid, starttime, suspended, trim(text) as statement, sequence from svv_query_inflight order by query, sequence; slice|query| pid | starttime |suspended| statement | sequence -----+-----+------+----------------------+---------+-----------+--------- 1012 | 428 | 1658 | 2012-04-10 13:53:... | 0 | select ...| 0 1012 | 428 | 1658 | 2012-04-10 13:53:... | 0 | enueid ...| 1 1012 | 428 | 1658 | 2012-04-10 13:53:... | 0 | atname,...| 2 1012 | 429 | 1608 | 2012-04-10 13:53:... | 0 | select ...| 0 (4 rows)


IT Generalist
Manchester, PA
(refer to resume)
(refer to resume)
Skills
Management
Problem Solving
Graphic Design
Application Design
UX
Networking
Computer Languages
Javascript
PHP
Visual Basic Application (VBA)
I enjoy meeting people and helping them. Utilizing my skills with technology so they can get back to doing what they are good at. I do NEC and Fire Code compliant wire installs for audio, video, and data. Create Servers and Networks that enable businesses to perform more efficiently.
As an Office Manager I was responsible for client satisfaction, sales, and timely deliveries. Speaking with clients on a daily basis over the phone and in person. Listening to and then resolving their issues.
Being invited into someones home is an honor. To show up and alleviate what issues they were having is a great satisfaction. My clients trust me and while the questions are non-stop I know it's because they want answers in human understandable terms.
It was a long career in Combat Arms. The lessons learned will never leave me. The Abilities to break tasks and challenges down into smaller realistic steps, to prioritize quickly, to adapt and change direction when necessary; are skills transferable to any domain. High stress, rapidly changing environments only motivate more.
Army MOS school for IT Tech. Course material surrounded A+, N+, Computer Security and other technical aspects related to military communications.
Basic Non-Commissioned Officer School. Course focused on Leadership and group dynamics along with Tactical Planning.
Refer to Resume for other certificates, awards, and training.


A64L
Section: Linux Programmer's Manual (3)
Updated: 2014-05-28
Index
Return to Main Contents
NAME
a64l, l64a - convert between long and base-64
SYNOPSIS
#include <stdlib.h>
long a64l(const char *str64);
char *l64a(long value);
Feature Test Macro Requirements for glibc (see
feature_test_macros(7)):
a64l(),
l64a():
-
_SVID_SOURCE || _XOPEN_SOURCE >= 500 ||
_XOPEN_SOURCE && _XOPEN_SOURCE_EXTENDED
DESCRIPTION
These functions provide a conversion between 32-bit long integers
and little-endian base-64 ASCII strings (of length zero to six).
If the string used as argument for
a64l()
has length greater than six, only the first six bytes are used.
If the type
long
has more than 32 bits, then
l64a()
uses only the low order 32 bits of
value,
and
a64l()
sign-extends its 32-bit result.
The 64 digits in the base-64 system are:
-
'.' represents a 0
'/' represents a 1
0-9 represent 2-11
A-Z represent 12-37
a-z represent 38-63
So 123 = 59*64^0 + 1*64^1 = "v/".
ATTRIBUTES
Multithreading (see pthreads(7))
The
l64a()
function is not thread-safe.
The
a64l()
function is thread-safe.
CONFORMING TO
POSIX.1-2001.
NOTES
The value returned by
l64a()
may be a pointer to a static buffer, possibly overwritten
by later calls.
The behavior of
l64a()
is undefined when
value
is negative.
If
value
is zero, it returns an empty string.
These functions are broken in glibc before 2.2.5
(puts most significant digit first).
This is not the encoding used by
uuencode(1).
SEE ALSO
uuencode(1),
strtoul(3)
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- ATTRIBUTES
-
- Multithreading (see pthreads(7))
-
- CONFORMING TO
-
- NOTES
-
- SEE ALSO
-
This document was created by
man2html,
using the manual pages.
Time: 02:55:17 GMT, September 18, 2014


We reserve the right to perform preselection if we get an extraordinary amount of entries
for a compo. We also reserve the right to disqualify any entries that we think are not
serious. Only competing entries will be distributed after the party.
Bring your own hardware if your contribution runs on anything other than one of the listed
compo machines.
Entries running on listed compo machines will be shown live. Entries on
your own hardware will also be shown live if possible. If you know your platform can
be difficult to show live on a digital broadcast bus be prepared to arrange a recording
in either 50 or 60 Hz.
Projector resolution: 1920x1080 at 50 or 60 Hz
Live Graphics Duel
Time on stage: 10 minutes drawing
A theme will be selected and announced 5 minutes before each duel, giving participants a bit of time to think
or output a mirrored image over HDMI at 720p or 1080p
Table space is limited to 100x50cm (Quicklock DJ 233) and adjustable height - sit or stand, your choice
Use any software you like as long as you can produce a drawing from a blank canvas
Existing images, sprites and so on are not allowed. Custom abstract brushes are fine but excersize caution, the audience is watching.
Please be at the party on Friday with your setup at the latest 19:00 and tell the infodesk you've arrived and want to participate in the live graphics duel
Live Tracked Music Duel
Time on stage: 10 minutes.
Sample set will be provided before the compo, more information on location.
Bring your own tracking setup with headphones that can run the vMix NDI Desktop Capture Tool (Windows/MacOs) and connect to wired ethernet
Please be at the party on Friday with your setup at the latest 19:00 and tell the infodesk you've arrived and want to participate in the live graphics duel
Newschool Demo
Maximum running time: 8 minutes.
Maximum disk size: 64 MiB.
Compo machines:
Intel Core i7-5820K 3.3GHz or better
16GB 3000MHz quad-channel DDR4 or more
Nvidia Geforce GTX 1080 Ti or better
Windows 10, 64 bit, latest release
Newschool Intro
Maximum running time: 8 minutes.
Maximum disk size: 64 KiB.
Compo machines:
Intel Core i7-5820K 3.3GHz or better
16GB 3000MHz quad-channel DDR4 or more
Nvidia Geforce GTX 1080 Ti or better
Windows 10, 64 bit, latest release
Last year's winning entry in Newschool Demo
Last year's winning entry in Newschool Intro
Oldschool Demo
Anything up to and including accelerated Amiga/Atari.
Maximum running time: 8 minutes.
Maximum disk size: 16 MiB.
Compo machines:
C64 w. 8580 & 6581 SID switchable, 1541 Ultimate-2.
Amiga 1200 w. 060 66MHz, 128 MB RAM.
Amiga 500 w. standard RAM expansion.
Other? Bring your own hardware!
Framemeister (XRGB-Mini) scaler, ask us for the settings
Wild
Maximum running time: 8 minutes.
A demo on a platform that doesn't really fit the other categories, an application,
a game, something you built out of old SCSI controllers. Not an animation or video.
Allowed formats: any (check with us if you're handing in something weird).
If your contribution is based on an existing piece of work, please provide a reference
when handing it in.
Last year's winning entry in Oldschool Demo
Last year's second place in Wild
Animation & Video
Maximum running time: 8 minutes.
A movie clip you made that's either pretty, interesting or funny.
Allowed formats: All movie formats (use common sense or contact us).
If your contribution is based on an existing piece of work, please provide a reference
when handing it in.
Photo
Photo compo, separate photo-only compo, new for 2018.
Retouching and collages are allowed.
Please provide unmodified photo as a workstage.
Allowed formats: JPEG.
You have to be the creator of the photo.
May be merged with graphics compos if we get too few entries in either compo.
Last year's winning entry in Animation & Video
Last year's second place in Newschool Graphics
Newschool Graphics
Combined hires/raytracing compo.
State if your picture is painted or raytraced when handing it in.
Please provide three workstages for painted pictures.
Allowed formats: PNG, JPEG.
If your contribution is based on an existing piece of work, please provide a reference
when handing it in.
Graphics compos may be merged if we get too few entries in either compo.
Oldschool Graphics
Anything up to 320x256 with 8 BPP.
Please provide three workstages.
Allowed formats (PC/Amiga): PNG, IFF/ILBM.
Allowed formats (others): Executable.
If your contribution is based on an existing piece of work, please provide a reference
when handing it in.
Graphics compos may be merged if we get too few entries in either compo.
Last year's winning entry in Newschool Graphics
Last year's winning entry in oldschool Graphics
ASCII/ANSI Graphics
Oldschool, newschool, block and ANSI in one compo
Entries will be shown in PabloView. oldskool will be shown with topaz; standard
DOS font for the other styles.
Keep it to 80 columns. Height? You decide.
If your contribution is based on an existing piece of work, please provide a reference
when handing it in.
We reserve the right to remove any converted entries from the compo.
Streaming Music
Maximum running time: 4 minutes.
Provide a short list of software/hardware used to make the tune.
Allowed formats: MP3, Ogg, FLAC, WAV
If your contribution is based on an existing piece of work, please provide a reference
when handing it in.
Oldschool & Tracked Music
Maximum running time: 4 minutes.
PC modules will be played using the latest version of XMPlay.
Please specify if you want any specific playback settings in XMPlay, or
else these will apply:
MOD: No Interpolation, No Ramping, 50 % Stereo Separation, normal MOD playback
mode.
S3M/XM/IT: Sinc Interpolation, Sensitive Ramping, 50 % Stereo Separation.
Amiga modules will be played using ProTracker, OctaMED, AHX or MusicLine.
NES music can be handed in in FTM format and will be played in 0CC-FamiTracker if so.


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|
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| PREV CLASS NEXT CLASS | FRAMES NO FRAMES | ||||||||
| SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |
Object org.apache.spark.graphx.GraphOps<VD,ED>
public class GraphOps<VD,ED>
Contains additional functionality for Graph
. All operations are expressed in terms of the
efficient GraphX API. This class is implicitly constructed for each Graph object.
| Constructor Summary | |
|---|---|
GraphOps(Graph<VD,ED> graph,
scala.reflect.ClassTag<VD> evidence$1,
scala.reflect.ClassTag<ED> evidence$2)
|
| Method Summary | ||
|---|---|---|
VertexRDD<Edge<ED>[]> |
collectEdges(EdgeDirection edgeDirection)
Returns an RDD that contains for each vertex v its local edges, i.e., the edges that are incident on v, in the user-specified direction. |
|
VertexRDD<long[]> |
collectNeighborIds(EdgeDirection edgeDirection)
Collect the neighbor vertex ids for each vertex. |
|
VertexRDD<scala.Tuple2<Object,VD>[]> |
collectNeighbors(EdgeDirection edgeDirection)
Collect the neighbor vertex attributes for each vertex. |
|
Graph<Object,ED> |
connectedComponents()
Compute the connected component membership of each vertex and return a graph with the vertex value containing the lowest vertex id in the connected component containing that vertex. |
|
Graph<VD,ED> |
convertToCanonicalEdges(scala.Function2<ED,ED,ED> mergeFunc)
Convert bi-directional edges into uni-directional ones. |
|
VertexRDD<Object> |
degrees()
The degree of each vertex in the graph. |
|
|
filter(scala.Function1<Graph<VD,ED>,Graph<VD2,ED2>> preprocess,
scala.Function1<EdgeTriplet<VD2,ED2>,Object> epred,
scala.Function2<Object,VD2,Object> vpred,
scala.reflect.ClassTag<VD2> evidence$4,
scala.reflect.ClassTag<ED2> evidence$5)
Filter the graph by computing some values to filter on, and applying the predicates. |
|
VertexRDD<Object> |
inDegrees()
The in-degree of each vertex in the graph. |
|
|
joinVertices(RDD<scala.Tuple2<Object,U>> table,
scala.Function3<Object,VD,U,VD> mapFunc,
scala.reflect.ClassTag<U> evidence$3)
Join the vertices with an RDD and then apply a function from the vertex and RDD entry to a new vertex value. |
|
long |
numEdges()
The number of edges in the graph. |
|
long |
numVertices()
The number of vertices in the graph. |
|
VertexRDD<Object> |
outDegrees()
The out-degree of each vertex in the graph. |
|
Graph<Object,Object> |
pageRank(double tol,
double resetProb)
Run a dynamic version of PageRank returning a graph with vertex attributes containing the PageRank and edge attributes containing the normalized edge weight. |
|
Graph<Object,Object> |
personalizedPageRank(long src,
double tol,
double resetProb)
Run personalized PageRank for a given vertex, such that all random walks are started relative to the source node. |
|
long |
pickRandomVertex()
Picks a random vertex from the graph and returns its ID. |
|
|
pregel(A initialMsg,
int maxIterations,
EdgeDirection activeDirection,
scala.Function3<Object,VD,A,VD> vprog,
scala.Function1<EdgeTriplet<VD,ED>,scala.collection.Iterator<scala.Tuple2<Object,A>>> sendMsg,
scala.Function2<A,A,A> mergeMsg,
scala.reflect.ClassTag<A> evidence$6)
Execute a Pregel-like iterative vertex-parallel abstraction. |
|
Graph<Object,Object> |
staticPageRank(int numIter,
double resetProb)
Run PageRank for a fixed number of iterations returning a graph with vertex attributes containing the PageRank and edge attributes the normalized edge weight. |
|
Graph<Object,Object> |
staticPersonalizedPageRank(long src,
int numIter,
double resetProb)
Run Personalized PageRank for a fixed number of iterations with with all iterations originating at the source node returning a graph with vertex attributes containing the PageRank and edge attributes the normalized edge weight. |
|
Graph<Object,ED> |
stronglyConnectedComponents(int numIter)
Compute the strongly connected component (SCC) of each vertex and return a graph with the vertex value containing the lowest vertex id in the SCC containing that vertex. |
|
Graph<Object,ED> |
triangleCount()
Compute the number of triangles passing through each vertex. |
| Methods inherited from class Object |
|---|
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
|---|
public GraphOps(Graph<VD,ED> graph, scala.reflect.ClassTag<VD> evidence$1, scala.reflect.ClassTag<ED> evidence$2)
| Method Detail |
|---|
public long numEdges()
public long numVertices()
public VertexRDD<Object> inDegrees()
public VertexRDD<Object> outDegrees()
public VertexRDD<Object> degrees()
public VertexRDD<long[]> collectNeighborIds(EdgeDirection edgeDirection)
edgeDirection
- the direction along which to collect
neighboring vertices
public VertexRDD<scala.Tuple2<Object,VD>[]> collectNeighbors(EdgeDirection edgeDirection)
edgeDirection
- the direction along which to collect
neighboring vertices
public VertexRDD<Edge<ED>[]> collectEdges(EdgeDirection edgeDirection)
edgeDirection
- the direction along which to collect
the local edges of vertices
public <U> Graph<VD,ED> joinVertices(RDD<scala.Tuple2<Object,U>> table, scala.Function3<Object,VD,U,VD> mapFunc, scala.reflect.ClassTag<U> evidence$3)
table
- the table to join with the vertices in the graph.
The table should contain at most one entry for each vertex.mapFunc
- the function used to compute the new vertex
values. The map function is invoked only for vertices with a
corresponding entry in the table otherwise the old vertex value
is used.
evidence$3
- (undocumented)
public <VD2,ED2> Graph<VD,ED> filter(scala.Function1<Graph<VD,ED>,Graph<VD2,ED2>> preprocess, scala.Function1<EdgeTriplet<VD2,ED2>,Object> epred, scala.Function2<Object,VD2,Object> vpred, scala.reflect.ClassTag<VD2> evidence$4, scala.reflect.ClassTag<ED2> evidence$5)
preprocess
- a function to compute new vertex and edge data before filteringepred
- edge pred to filter on after preprocess, see more details under
Graph.subgraph(scala.Function1, java.lang.Object>, scala.Function2)
vpred
- vertex pred to filter on after prerocess, see more details under
Graph.subgraph(scala.Function1, java.lang.Object>, scala.Function2)
evidence$4
- (undocumented)evidence$5
- (undocumented)
public long pickRandomVertex()
public Graph<VD,ED> convertToCanonicalEdges(scala.Function2<ED,ED,ED> mergeFunc)
mergeFunc
- the user defined reduce function which should
be commutative and associative and is used to combine the output
of the map phase
public <A> Graph<VD,ED> pregel(A initialMsg, int maxIterations, EdgeDirection activeDirection, scala.Function3<Object,VD,A,VD> vprog, scala.Function1<EdgeTriplet<VD,ED>,scala.collection.Iterator<scala.Tuple2<Object,A>>> sendMsg, scala.Function2<A,A,A> mergeMsg, scala.reflect.ClassTag<A> evidence$6)
vprog
is executed in parallel on
each vertex receiving any inbound messages and computing a new
value for the vertex. The sendMsg
function is then invoked on
all out-edges and is used to compute an optional message to the
destination vertex. The mergeMsg
function is a commutative
associative function used to combine messages destined to the
same vertex.
On the first iteration all vertices receive the initialMsg
and
on subsequent iterations if a vertex does not receive a message
then the vertex-program is not invoked.
This function iterates until there are no remaining messages, or
for maxIterations
iterations.
initialMsg
- the message each vertex will receive at the on
the first iteration
maxIterations
- the maximum number of iterations to run for
activeDirection
- the direction of edges incident to a vertex that received a message in
the previous round on which to run sendMsg
. For example, if this is EdgeDirection.Out
, only
out-edges of vertices that received a message in the previous round will run.
vprog
- the user-defined vertex program which runs on each
vertex and receives the inbound message and computes a new vertex
value. On the first iteration the vertex program is invoked on
all vertices and is passed the default message. On subsequent
iterations the vertex program is only invoked on those vertices
that receive messages.
sendMsg
- a user supplied function that is applied to out
edges of vertices that received messages in the current
iteration
mergeMsg
- a user supplied function that takes two incoming
messages of type A and merges them into a single message of type
A. ''This function must be commutative and associative and
ideally the size of A should not increase.''
evidence$6
- (undocumented)
public Graph<Object,Object> pageRank(double tol, double resetProb)
tol
- (undocumented)resetProb
- (undocumented)
PageRank$.runUntilConvergence(org.apache.spark.graphx.Graph, double, double, scala.reflect.ClassTag, scala.reflect.ClassTag)
public Graph<Object,Object> personalizedPageRank(long src, double tol, double resetProb)
src
- (undocumented)tol
- (undocumented)resetProb
- (undocumented)
PageRank$.runUntilConvergenceWithOptions(org.apache.spark.graphx.Graph, double, double, scala.Option, scala.reflect.ClassTag, scala.reflect.ClassTag)
public Graph<Object,Object> staticPersonalizedPageRank(long src, int numIter, double resetProb)
src
- (undocumented)numIter
- (undocumented)resetProb
- (undocumented)
PageRank$.runWithOptions(org.apache.spark.graphx.Graph, int, double, scala.Option, scala.reflect.ClassTag, scala.reflect.ClassTag)
public Graph<Object,Object> staticPageRank(int numIter, double resetProb)
numIter
- (undocumented)resetProb
- (undocumented)
PageRank$.run(org.apache.spark.graphx.Graph, int, double, scala.reflect.ClassTag, scala.reflect.ClassTag)
public Graph<Object,ED> connectedComponents()
ConnectedComponents$.run(org.apache.spark.graphx.Graph, scala.reflect.ClassTag, scala.reflect.ClassTag)
public Graph<Object,ED> triangleCount()
TriangleCount$.run(org.apache.spark.graphx.Graph, scala.reflect.ClassTag, scala.reflect.ClassTag)
public Graph<Object,ED> stronglyConnectedComponents(int numIter)
numIter
- (undocumented)
StronglyConnectedComponents$.run(org.apache.spark.graphx.Graph, int, scala.reflect.ClassTag, scala.reflect.ClassTag)
|
|||||||||
| PREV CLASS NEXT CLASS | FRAMES NO FRAMES | ||||||||
| SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |


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When you work with us, you are part of a team of dedicated collaboraters.
All aspects of our software development process are intertwined, interactive and agile to fit in a fast moving enviroment.
Our approach unifies design, development and product development and project management to create unique products.We start each project by understanding your business goals, the user needs and the product requirement.
We help translate them into an effective and elegant solution
Before we sign a contractor or type a sequence of code our personnel will spend necessary time to understand your product vision.
The outcome of the scoping session is a proposal of high level statement of work.
Based on ones' requirement, we can provide a complete offering or just the annexures of the requirements.
Our design practice offers a range services including brand strategy, interaction and visual design and use user experience testing. Throughout your project, our designers create and implement visual design and workflows, solicit user feedback and work with you to make sure what gets built is what was needed
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--- layout: default --- {% include description.html %} {% include filters.html %} {% for organization in site.data.organizations %} {% include organization.html %} {% endfor %}


0
None.
Positive TB test
The cardiac silhouette and mediastinum size are within normal limits. There is no pulmonary edema. There is no focal consolidation. There are no XXXX of a pleural effusion. There is no evidence of pneumothorax.
Normal chest x-XXXX.
| Disease | Location | Year |
|---|---|---|
| Polio and BC546 is −55OC cold. | -Dublin to Milwaukee |
2001 |
| Scurvy | Annapolis | Junction and Storage Temperature −55 to 150 o ? C |
In between the tables there is a nasty case of heart attack
| Problem | Cause | Cost |
|---|---|---|
| Arthritis | Pokemon Go | Free |
| YellowFever | Unicorns | $17.75 |
| Hypochondria | Fear | $100 |


HTML Forms
First name:
Last name:
If you click the "Submit" button, the form-data will be sent to a page called "/results".


Open Virtualization Format is an open standard for packaging information regarding virtual machines. It is used, among other, by VMWare, VirtualBox and XenServer. OVF allows users to migrate between virtualization software without the need of reconfiguring hardware, network or operating system.
Currently, exporting instance in Ganeti results with a configuration file that is readable only for Ganeti. It disallows the users to change the platform they use without loosing all the machine’s configuration. Import function in Ganeti is also currently limited to the previously prepared instances.
Implementation of OVF support allows users to migrate to Ganeti from other platforms, thus potentially increasing the usage. It also enables virtual machine end-users to create their own machines (e.g. in VirtualBox or SUSE Studio) and then add them to Ganeti cluster, thus providing better personalization.
According to the DMTF document introducing the standard: “The Open Virtualization Format (OVF) Specification describes an open, secure, portable, efficient and extensible format for the packaging and distribution of software to be run in virtual machines.” OVF supports both single and multiple- configurations of VMs in one package, is host- and virtualization platform-independent and optimized for distribution (e.g. by allowing usage of public key infrastructure and providing tools for management of basic software licensing).
There are no limitations regarding disk images used, as long as the description is provided. Any hardware described in a proper format (i.e. CIM - Common Information Model) is accepted, although there is no guarantee that every virtualization software will support all types of hardware.
OVF package should contain exactly one file with .ovf extension, which is an XML file specifying the following (per virtual machine):
Each of the elements in .ovf file may, if desired, contain a human-readable description to every piece of information given.
Additionally, the package may have some disk image files and other additional resources (e.g. ISO images).
In order to provide secure means of distribution for OVF packages, the manifest and certificate are provided. Manifest (.mf file) contains checksums for all the files in OVF package, whereas certificate (.cert file) contains X.509 certificate and a checksum of manifest file. Both files are not compulsory, but certificate requires manifest to be present.
Although OVF is claimed to support ‘any disk format’, what we are interested in is which formats are supported by VM managers that currently use OVF.
In our implementation of the OVF we allow a choice between raw, cow and vmdk disk formats for both import and export. Other formats covertable using qemu-img are allowed in import mode, but not tested. The justification is the following:
This section contains an overview of how different parts of Ganeti’s export info are included in .ovf configuration file. It also explains how import is designed to work with incomplete information.
The basic structure of Ganeti .ovf file is the following:
<Envelope>
<References></References>
<DiskSection></DiskSection>
<NetworkSection></NetworkSection>
<VirtualSystem>
<Name></Name>
<OperatingSystemSection></OperatingSystemSection>
<VirtualHardwareSection><VirtualHardwareSection>
</VirtualSystem>
<gnt:GanetiSection>
<gnt:VersionId/>
<gnt:AutoBalance/>
<gnt:Tags></gnt:Tags>
<gnt:DiskTemplate</gnt:DiskTemplate>
<gnt:OperatingSystem>
<gnt:Name/>
<gnt:Parameters></gnt:Parameters>
</gnt:OperatingSystem>
<gnt:Hypervisor>
<gnt:Name/>
<gnt:Parameters></gnt:Parameters>
</gnt:Hypervisor>
<gnt:Network>
<gnt:Mode/>
<gnt:MACAddress/>
<gnt:Link/>
<gnt:IPAddress/>
</gnt:Network>
</gnt:GanetiSection>
</Envelope>
Note
Tags with gnt: prefix are Ganeti-specific and are not a part of OVF standard.
Whereas Ganeti’s export info is of the following form, => showing where will the data be in OVF format:
[instance]
disk0_dump = filename => File in References
disk0_ivname = name => generated automatically
disk0_size = size_in_mb => calculated after disk conversion
disk_count = number => generated automatically
disk_template = disk_type => gnt:DiskTemplate
hypervisor = hyp-name => gnt:Name in gnt:Hypervisor
name = inst-name => Name in VirtualSystem
nic0_ip = ip => gnt:IPAddress in gnt:Network
nic0_link = link => gnt:Link in gnt:Network
nic0_mac = mac => gnt:MACAddress in gnt:Network or
Item in VirtualHardwareSection
nic0_mode = mode => gnt:Mode in gnt:Network
nic_count = number => generated automatically
tags => gnt:Tags
[backend]
auto_balanced => gnt:AutoBalance
memory = mem_in_mb => Item in VirtualHardwareSection
vcpus = number => Item in VirtualHardwareSection
[export]
compression => ignored
os => gnt:Name in gnt:OperatingSystem
source => ignored
timestamp => ignored
version => gnt:VersionId or
constants.EXPORT_VERSION
[os] => gnt:Parameters in gnt:OperatingSystem
[hypervisor] => gnt:Parameters in gnt:Hypervisor
In case of multiple networks/disks used by an instance, they will all be saved in appropriate sections as specified above for the first network/disk.
In case of importing to Ganeti OVF package generated in other software, e.g. VirtualBox, some fields required for Ganeti to properly handle import may be missing. Most often it will happen that such OVF package will lack the gnt:GanetiSection.
If this happens you can specify all the missing parameters in the command line. Please refer to Command Line section.
In the OVF converter we provide examples of options when converting from VirtualBox, VMWare and OpenSuseStudio.
When exporting to other virtualization software, you may notice that there is a section gnt:GanetiSection, containing Ganeti-specific information. This may on rare cases cause trouble in importing your instance. If that is the case please do one of the two:
1. Export from Ganeti to OVF with --external option - this will cause to skip the non-standard information.
2. Manually remove the gnt:GanetiSection from the .ovf file. You will also have to recompute sha1 sum (sha1sum command) of the .ovf file and update your .mf file with new value.
Note
Manual change option is only recommended when you have exported your instance with -format option other that raw or selected --compress. It saves you the time of converting or compressing the disk image.
The limitations regarding import of the OVF instances generated outside Ganeti will be (in general) the same, as limitations for Ganeti itself. The desired behavior in case of encountering unsupported element will be to ignore this element’s tag without interruption of the import process.
There are no limitations regarding support for multiple files in package or packing the OVF package into one OVA (Open Virtual Appliance) file. As for certificates and licenses in the package, their support will be under discussion after completion of the basic features implementation.
At first only singular instances (i.e. VirtualSystem, not VirtualSystemCollection) will be supported. In the future multi-tiered appliances containing whole nodes (or even clusters) are considered an option.
As mentioned, Ganeti will allow export in raw, cow and vmdk formats. This means i.e. that the appropriate ovf:format will be provided. As for import, we will support all formats that qemu-img can convert to raw. At this point this means raw, cow, qcow, qcow2, vmdk and cloop. We do not plan for now to support vdi or vhd unless they become part of qemu-img supported formats.
We plan to support compression both for import and export - in gzip format. There is also a possibility to provide virtual disk in chunks of equal size. The latter will not be implemented in the first version, but we do plan to support it eventually.
The ovf:format tag is not used in our case when importing. Instead we use qemu-img info, which provides enough information for our purposes and is better standardized.
Please note, that due to security reasons we require the disk image to be in the same directory as the .ovf description file for both import and export.
In order to completely ignore disk-related information in resulting config file, please use --disk-template=diskless option.
Ganeti provides support for routed and bridged mode for the networks. Since the standard OVF format does not contain any information regarding used network type, we add our own source of such information in gnt:GanetiSection. In case this additional information is not present, we perform a simple check - if network name specified in NetworkSection contains words bridged or routed, we consider this to be the network type. Otherwise option auto is chosen, in which case the cluster’s default value for that field will be used when importing. This provides a safe fallback in case of NAT networks usage, which are commonly used e.g. in VirtualBox.
The supported hardware is limited to virtual CPUs, RAM memory, disks and networks. In particular, no USB support is currently provided, as Ganeti does not support them.
Support for different operating systems depends solely on their accessibility for Ganeti instances. List of installed OSes can be checked using gnt-os list command.
Files listed in ovf:References section cannot be hyperlinks.
The instance name (gnt:VirtualSystem\gnt:Name or command line’s --name option ) has to be resolvable in order for successful import using gnt-backup import.
The basic usage of the ovf tool is one of the following:
ovfconverter import filename
ovfconverter export --format=<format> filename
This will result in a conversion based solely on the content of provided file. In case some information required to make the conversion is missing, an error will occur.
If output directory should be different than the standard Ganeti export directory (usually /srv/ganeti/export), option --output-dir can be used.
If name of resulting entity should be different than the one read from the file, use --name option.
Import options that ovfconverter supports include options for backend, disks, hypervisor, networks and operating system. If an option is given, it overrides the values provided in the OVF file.
--backend=option=value can be used to set auto balance, number of vcpus and amount of RAM memory.
Please note that when you do not provide full set of options, the omitted ones will be set to cluster defaults (auto).
--disk-template=diskless causes the converter to ignore all other disk option - both from .ovf file and the command line. Other disk template options include plain, drdb, file, sharedfile and blockdev.
--disk=number:size=value causes to create disks instead of converting them from OVF package; numbers should start with 0 and be consecutive.
-H hypervisor_name and -H hypervisor_name:option=value provide options for hypervisor.
--no-nics option causes converter to ignore any network information provided.
--network=number:option=value sets network information according to provided data, ignoring the OVF package configuration.
--os-type=type sets os type accordingly, this option is required when importing from OVF instance not created from Ganeti config file.
--os-parameters provides options for chosen operating system.
--tags=tag1,tag2,tag3 is a means of providing tags specific for the instance.
After the conversion is completed, you may use gnt-backup import to import the instance into Ganeti.
Example:
ovfconverter import file.ovf --disk-template=diskless \
--os-type=lenny-image \
--backend=vcpus=1,memory=512,auto_balance \
-H:xen-pvm \
--net=0:mode=bridged,link=xen-br0 \
--name=xen.i1
[...]
gnt-backup import xen.i1
[...]
gnt-instance list
Export options include choice of disk formats to convert the disk image (--format) and compression of the disk into gzip format (--compress). User has also the choice of allowing to skip the Ganeti-specific part of the OVF document (--external).
By default, exported OVF package will not be contained in the OVA package, but this may be changed by adding --ova option.
Please note that in order to create an OVF package, it is first required that you export your VM using gnt-backup export.
Example:
gnt-backup export -n node1.xen xen.i1
[...]
ovfconverter export --format=vmdk --ova --external \
--output-dir=~/xen.i1 \
/srv/ganeti/export/xen.i1.node1.xen/config.ini
Disk conversion for both import and export is done using external tool called qemu-img. The same tool is used to determine the type of disk, as well as its virtual size.
Import functionality is implemented using two classes - OVFReader and OVFImporter.
OVFReader class is used to read the contents of the .ovf file. Every action that requires .ovf file access is done through that class. It also performs validation of manifest, if one is present.
The result of reading some part of file is typically a dictionary or a string, containing options which correspond to the ones in config.ini file. Only in case of disks, the resulting value is different - it is then a list of disk names. The reason for that is the need for conversion.
OVFImporter class performs all the command-line-like tasks, such as unpacking OVA package, removing temporary directory, converting disk file to raw format or saving the configuration file on disk. It also contains a set of functions that read the options provided in the command line.
Typical workflow for the import is very simple:
read the .ovf file into memory
verify manifest
parse each element of the configuration file: name, disk template, hypervisor, operating system, backend parameters, network and disks
check if option for the element can be read from command line options
- if yes: parse options from command line
- otherwise: read the appropriate portion of .ovf file
save gathered information in config.ini file
Similar to import, export functionality also uses two classes - OVFWriter and OVFExporter.
OVFWriter class produces XML output based on the information given. Its sole role is to separate the creation of .ovf file content.
OVFExporter class gathers information from config.ini file or command line and performs necessary operations like disk conversion, disk compression, manifest creation and OVA package creation.
Typical workflow for the export is even simpler, than for the import:


Teammates: Melody & Tao
In the diagram above, we propose a convoluted system to play a 'song of the day,' taking a user on a journey through some of the data available about that day. We begin by asking them abstractly (via emoji) about their feelings, and then slowly populating the date, weather conditions, popular news stories, and whether or not Mercury is in retrograde. We end by presenting them with an automatically generated Haiku and a song, selected based on data from previous queries.


lavalink package¶
Submodules¶
lavalink.AudioTrack module¶
lavalink.Events module¶
lavalink.Player module¶
lavalink.PlayerManager module¶
-
class
lavalink.PlayerManager.
DefaultPlayer
(bot, guild_id: int)[source]¶ Bases:
lavalink.PlayerManager.BasePlayer
-
connected_channel
¶ Returns the voicechannel the player is connected to
-
is_connected
¶ Returns the player’s connection state
-
is_playing
¶ Returns the player’s track state
-


ProGAL is a library containing geometric datastructures and algorithms with special emphasis on supporting
representation and analysis of protein structures.
TODO index
Goals
TODO write goals and outline of ProGAL
Section title
Implementation conventions
Composite geometric objects
The geometric object such as planes and lines are defined by other geometric objects such as points and vectors. The user has full
control of these defining objects and changing the defining object also changes the dependent. For example, a plane is defined
by a point and a normal vector that is typically passed to the plane upon construction. The reference of the point used to construct
the plane is retrievable at any later time, and changing the properties of that reference also changes the plane.
toString and toConsole methods
All classes supplies four methods: toString(), toString(int dec), toConsole() and toConsole(int dec). The toString methods returns a
string representation of an object that clearly specifies the class-type and defining parameters with two decimals precision. The dec
parameter is used to adjust the precision. The toConsole-methods prints the object to System.out using the toString methods.
Various minor conventions
- Whereever it can be relevant
equals
methods should be supplied. An equals
-method should only return
true if the argument is of the same class-type.
References
Throughout this documentation references are made to the following literature
- [Ericsson 05] Christer Ericsson, Real-time Collision Detection, Elsevier, 2005.


|
| | Builder (TTreeViewDragDrop component) |
| |
| virtual TBuilder | DragText (string dragText) |
| |
| virtual TBuilder | AllowParentInserts (bool allowParentInserts) |
| | Allow inserting a dragged node between an expanded parent node and its first child that will become a sibling of the parent when dropped. More...
|
| |
| virtual TBuilder | AllowContainerDrops (bool allowContainerDrops) |
| | True if drops on the tree container (outside of a specific tree node) are allowed. More...
|
| |
| virtual TBuilder | AllowCopy (bool? allowCopy) |
| | Set as true to allow the user to hold down the control key at the start of the drag operation and copy the dragged records between grids. Otherwise, dragged records will be moved. More...
|
| |
| virtual TBuilder | ContainerScroll (bool containerScroll) |
| | True to register this container with the Scrollmanager for auto scrolling during drag operations. More...
|
| |
| virtual TBuilder | Copy (bool? copy) |
| | Set as true to copy the records from the source grid to the destination drop grid. Otherwise, dragged records will be moved. More...
|
| |
| virtual TBuilder | DDGroup (string dDGroup) |
| | A named drag drop group to which this object belongs. If a group is specified, then both the DragZones and DropZone used by this plugin will only interact with other drag drop objects in the same group. Defaults to: "TreeDD" More...
|
| |
| virtual TBuilder | DragGroup (string dragGroup) |
| | The ddGroup to which the DragZone will belong. This defines which other DropZones the DragZone will interact with. Drag/DropZones only interact with other Drag/DropZones which are members of the same ddGroup. More...
|
| |
| virtual TBuilder | DropGroup (string dropGroup) |
| | The ddGroup to which the DropZone will belong. This defines which other DragZones the DropZone will interact with. Drag/DropZones only interact with other Drag/DropZones which are members of the same ddGroup. More...
|
| |
| virtual TBuilder | EnableDrag (bool enableDrag) |
| | Set to false to disallow dragging items from the View. Defaults to: true More...
|
| |
| virtual TBuilder | EnableDrop (bool enableDrop) |
| | Set to false to disallow the View from accepting drop gestures. Defaults to: true More...
|
| |
| virtual TBuilder | AppendOnly (bool appendOnly) |
| | True if the tree should only allow append drops (use for trees which are sorted). Defaults to: false More...
|
| |
| virtual TBuilder | ExpandDelay (int expandDelay) |
| | The delay in milliseconds to wait before expanding a target tree node while dragging a droppable node over the target. Defaults to: 1000 More...
|
| |
| virtual TBuilder | NodeHighlightColor (string nodeHighlightColor) |
| | The color to use when visually highlighting the dragged or dropped node (default value is light blue). The color must be a 6 digit hex value, without a preceding '#'. See also nodeHighlightOnDrop and nodeHighlightOnRepair. Defaults to: "c3daf9" More...
|
| |
| virtual TBuilder | NodeHighlightOnDrop (bool nodeHighlightOnDrop) |
| | Whether or not to highlight any nodes after they are successfully dropped on their target. Defaults to the value of Ext.enableFx. See also nodeHighlightColor and nodeHighlightOnRepair. More...
|
| |
| virtual TBuilder | NodeHighlightOnRepair (bool nodeHighlightOnRepair) |
| | Whether or not to highlight any nodes after they are repaired from an unsuccessful drag/drop. Defaults to the value of Ext.enableFx. See also nodeHighlightColor and nodeHighlightOnDrop. More...
|
| |
| virtual TBuilder | AllowLeafDrop (bool allowLeafDrop) |
| | true to allow append to the leaf node More...
|
| |
| virtual TBuilder | SortOnDrop (bool sortOnDrop) |
| | Configure as true to sort the target node into the current tree sort order after the dropped node is added. Defaults to false.


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Use the checkbox below to report when annotations are misplaced: annotations with ElementType.TYPE_USE not directly before the type after the modifier keywords, other annotations not before the modifier keywords. When the checkbox is unchecked any annotation can be positioned before or after the modifier keywords. Modifier lists with annotations in between modifier keywords will always be reported.


Jake Libby leaves Nottinghamshire to join Worcestershire
Notts will now look for a new top order batsman following the 26-year-old's departure
by Matt DaviesBatsman Jake Libby has joined Worcestershire, ending a five-year association with Nottinghamshire by mutual consent.
Head coach Peter Moores thanked the 26-year-old for his whole-hearted commitment to Notts
“Jake has been a valued member of our setup and someone who has worked tirelessly on his game throughout his time at Trent Bridge,” said Moores.
“There’s been some exceptional performances to remember and some tough times as well. He’s remained very positive throughout; always a pleasure to coach and to have around the group.
“Jake’s white-ball cricket has improved a lot and that’s credit to him. Meanwhile, he’s found himself missing out more often in four-day cricket.
“With Jake having expressed a desire to join Worcestershire, we have agreed for him to leave and we wish him all the best with the next chapter.
“It creates a place in the squad for another top-order batsman, to which we’ll look to recruit with red-ball cricket primarily in mind.”
Libby, a right-handed batsman and occasional off-spinner, has made 75 appearances for Nottinghamshire across all formats since making his debut in 2014.
“I’ve hugely enjoyed my time with at Trent Bridge and will forever be grateful for the opportunities I’ve had to prove myself as a professional cricketer,” said the Cornishman.
“Working with the coaching staff and alongside the calibre of batsmen at Notts has definitely allowed me to progress and mature as a cricketer.
“I’ve also relished the chances I’ve been given in the past couple of seasons to develop my limited-overs game.
“After five years with Notts, I feel the time is right to move into a new phase of my career and take on a fresh challenge.”


Project Dependencies
compile
The following is a list of compile dependencies for this project. These dependencies are required to compile and run the application:
| GroupId | ArtifactId | Version | Type | Licenses |
|---|---|---|---|---|
| commons-httpclient | commons-httpclient | 3.1 | jar | - |
| org.apache.ant | ant | 1.10.7 | jar | The Apache Software License, Version 2.0 |
| org.apache.bcel | bcel | 5.2 | jar | - |
| org.apache.ivy | ivy | 2.4.0 | jar | The Apache Software License, Version 2.0 |
| org.jvnet.hudson | ivy | 1.4.1 | jar | - |
test
The following is a list of test dependencies for this project. These dependencies are only required to compile and run unit tests for the application:
| GroupId | ArtifactId | Version | Type | Licenses |
|---|---|---|---|---|
| junit | junit | 4.13 | jar | Eclipse Public License 1.0 |
system
The following is a list of system dependencies for this project. These dependencies are required to compile the application:
| GroupId | ArtifactId | Version | Type | Licenses |
|---|---|---|---|---|
| com.sun | tools | 1.8.0_265 | jar | - |
Project Transitive Dependencies
The following is a list of transitive dependencies for this project. Transitive dependencies are the dependencies of the project dependencies.
compile
The following is a list of compile dependencies for this project. These dependencies are required to compile and run the application:
| GroupId | ArtifactId | Version | Type | Licenses |
|---|---|---|---|---|
| commons-codec | commons-codec | 1.2 | jar | - |
| commons-logging | commons-logging | 1.0.4 | jar | The Apache Software License, Version 2.0 |
| jakarta-regexp | jakarta-regexp | 1.4 | jar | - |
| org.apache.ant | ant-launcher | 1.10.7 | jar | The Apache Software License, Version 2.0 |
test
The following is a list of test dependencies for this project. These dependencies are only required to compile and run unit tests for the application:
| GroupId | ArtifactId | Version | Type | Licenses |
|---|---|---|---|---|
| org.hamcrest | hamcrest-core | 1.3 | jar | New BSD License |
Project Dependency Graph
Dependency Tree
- net.sf.antcontrib:ant-contrib:jar:1.0b6
- org.apache.ant:ant:jar:1.10.7 (compile)
- org.apache.ant:ant-launcher:jar:1.10.7 (compile)
- org.apache.bcel:bcel:jar:5.2 (compile)
- jakarta-regexp:jakarta-regexp:jar:1.4 (compile)
- commons-httpclient:commons-httpclient:jar:3.1 (compile)
- commons-logging:commons-logging:jar:1.0.4 (compile)
- commons-codec:commons-codec:jar:1.2 (compile)
- org.apache.ivy:ivy:jar:2.4.0 (compile)
- org.jvnet.hudson:ivy:jar:1.4.1 (compile)
- junit:junit:jar:4.13 (test)
- org.hamcrest:hamcrest-core:jar:1.3 (test)
- com.sun:tools:jar:1.8.0_265 (system)
- org.apache.ant:ant:jar:1.10.7 (compile)
Licenses
Unknown: Codec, Ivy, bcel, jakarta-regexp
Eclipse Public License 1.0: JUnit
New BSD License: Hamcrest Core
The Apache Software License, Version 2.0: Apache Ant Core, Apache Ant Launcher, Apache Ivy, Logging, ant-contrib
Dependency File Details
| Filename | Size | Entries | Classes | Packages | Java Version | Debug Information |
|---|---|---|---|---|---|---|
| commons-codec-1.2.jar | 30.1 kB | 30 | 19 | 5 | 1.1 | Yes |
| commons-httpclient-3.1.jar | 305 kB | 183 | 167 | 8 | 1.2 | Yes |
| commons-logging-1.0.4.jar | 38 kB | 29 | 18 | 2 | 1.2 | Yes |
| jakarta-regexp-1.4.jar | 28.6 kB | 22 | 17 | 1 | 1.1 | No |
| junit-4.13.jar | 381.8 kB | 387 | 348 | 32 | 1.5 | Yes |
| ant-1.10.7.jar | 2.2 MB | 1241 | 1157 | 62 | 1.8 | Yes |
| ant-launcher-1.10.7.jar | 18.8 kB | 14 | 4 | 1 | 1.8 | Yes |
| bcel-5.2.jar | 533.3 kB | 397 | 383 | 8 | 1.3 | Yes |
| ivy-2.4.0.jar | 1.3 MB | 857 | 744 | 65 | 1.5 | Yes |
| hamcrest-core-1.3.jar | 45 kB | 52 | 45 | 3 | 1.5 | Yes |
| ivy-1.4.1.jar | 571.9 kB | 380 | 323 | 29 | 1.4 | Yes |
| Total | Size | Entries | Classes | Packages | Java Version | Debug Information |
| 11 | 5.5 MB | 3592 | 3225 | 216 | 1.8 | 10 |
| compile: 9 | compile: 5 MB | compile: 3153 | compile: 2832 | compile: 181 | - | compile: 8 |
| test: 2 | test: 426.8 kB | test: 439 | test: 393 | test: 35 | - | test: 2 |