DiscordClient
open class DiscordClient : DiscordClientSpec, DiscordDispatchEventHandler, DiscordEndpointConsumer
The base class for SwiftDiscord. Most interaction with Discord will be done through this class.
See DiscordEndpointConsumer
for methods dealing with sending to Discord.
Creating a client:
self.client = DiscordClient(token: "Bot mysupersecretbottoken", configuration: [.log(.info)])
Once a client is created, you need to set its delegate so that you can start receiving events:
self.client.delegate = self
See DiscordClientDelegate
for a list of delegate methods that can be implemented.
-
The rate limiter for this client.
Declaration
Swift
public var rateLimiter: DiscordRateLimiterSpec!
-
The Discord JWT token.
Declaration
Swift
public let token: DiscordToken
-
The client’s delegate.
Declaration
Swift
public weak var delegate: DiscordClientDelegate?
-
If true, the client does not store presences.
Declaration
Swift
public var discardPresences = false
-
The queue that callbacks are called on. In addition, any reads from any properties of DiscordClient should be made on this queue, as this is the queue where modifications on them are made.
Declaration
Swift
public var handleQueue = DispatchQueue.main
-
The manager for this client’s shards.
Declaration
Swift
public var shardManager: DiscordShardManager!
-
If we should only represent a single shard, this is the shard information.
Declaration
Swift
public var shardingInfo = try! DiscordShardInformation(shardRange: 0..<1, totalShards: 1)
-
Whether large guilds should have their users fetched as soon as they are created.
Declaration
Swift
public var fillLargeGuilds = false
-
Whether the client should query the API for users who aren’t in the guild
Declaration
Swift
public var fillUsers = false
-
Whether the client should remove users from guilds when they go offline.
Declaration
Swift
public var pruneUsers = false
-
Whether or not this client is connected.
Declaration
Swift
public private(set) var connected = false
-
The direct message channels this user is in.
Declaration
Swift
public private(set) var directChannels = [ChannelID: DiscordTextChannel]()
-
The guilds that this user is in.
Declaration
Swift
public private(set) var guilds = [GuildID: DiscordGuild]()
-
The relationships this user has. Only valid for non-bot users.
Declaration
Swift
public private(set) var relationships = [[String: Any]]()
-
The DiscordUser this client is connected to.
Declaration
Swift
public private(set) var user: DiscordUser?
-
A manager for the voice engines.
Declaration
Swift
public private(set) var voiceManager: DiscordVoiceManager!
-
Declaration
Swift
public required init(token: DiscordToken, delegate: DiscordClientDelegate, configuration: [DiscordClientOption] = [])
Parameters
token
The discord token of the user
delegate
The delegate for this client.
configuration
An array of DiscordClientOption that can be used to customize the client
-
Begins the connection to Discord. Once this is called, wait for a
connect
event before trying to interact with the client.Declaration
Swift
open func connect()
-
Disconnects from Discord. A
disconnect
event is fired when the client has successfully disconnected.Calling this method turns off automatic resuming, set
resume
totrue
before callingconnect()
again.Declaration
Swift
open func disconnect()
-
Finds a channel by its snowflake.
Declaration
Swift
public func findChannel(fromId channelId: ChannelID) -> DiscordChannel?
Parameters
fromId
A channel snowflake
Return Value
An optional containing a
DiscordChannel
if one was found. -
Handles a dispatch event. This will call one of the other handle methods or the standard event handler.
Declaration
Swift
open func handleDispatch(event: DiscordDispatchEvent, data: DiscordGatewayPayloadData)
Parameters
event
The dispatch event
data
The dispatch event’s data
-
Gets the
DiscordGuild
for a channel snowflake.Declaration
Swift
public func guildForChannel(_ channelId: ChannelID) -> DiscordGuild?
Parameters
channelId
A channel snowflake
Return Value
An optional containing a
DiscordGuild
if one was found. -
Joins a voice channel. A
voiceEngine.ready
event will be fired when the client has joined the channel.Declaration
Swift
open func joinVoiceChannel(_ channelId: ChannelID)
Parameters
channelId
The snowflake of the voice channel you would like to join
-
Leaves the voice channel that is associated with the guild specified.
Declaration
Swift
open func leaveVoiceChannel(onGuild guildId: GuildID)
Parameters
onGuild
The snowflake of the guild that you want to leave.
-
Requests all users from Discord for the guild specified. Use this when you need to get all users on a large guild. Multiple
guildMembersChunk
will be fired.Declaration
Swift
open func requestAllUsers(on guildId: GuildID)
Parameters
on
The snowflake of the guild you wish to request all users.
-
Sets the user’s presence.
Declaration
Swift
open func setPresence(_ presence: DiscordPresenceUpdate)
Parameters
presence
The new presence object
-
Signals that the manager has finished connecting.
Declaration
Swift
open func shardManager(_ manager: DiscordShardManager, didConnect connected: Bool)
Parameters
manager
The manager.
didConnect
Should always be true.
-
Signals that the manager has disconnected.
Declaration
Swift
open func shardManager(_ manager: DiscordShardManager, didDisconnectWithReason reason: String)
Parameters
manager
The manager.
didDisconnectWithReason
The reason the manager disconnected.
-
Signals that the manager received an event. The client should handle this.
Declaration
Swift
open func shardManager(_ manager: DiscordShardManager, shouldHandleEvent event: DiscordDispatchEvent, withPayload payload: DiscordGatewayPayload)
Parameters
manager
The manager.
shouldHandleEvent
The event to be handled.
withPayload
The payload that came with the event.
-
Called when an engine disconnects.
Declaration
Swift
open func voiceManager(_ manager: DiscordVoiceManager, didDisconnectEngine engine: DiscordVoiceEngine)
Parameters
manager
The manager.
engine
The engine that disconnected.
-
Called when a voice engine receives opus voice data.
Declaration
Swift
open func voiceManager(_ manager: DiscordVoiceManager, didReceiveOpusVoiceData data: DiscordOpusVoiceData, fromEngine engine: DiscordVoiceEngine)
Parameters
manager
The manager.
didReceiveVoiceData
The data received.
fromEngine
The engine that received the data.
-
Called when a voice engine receives raw voice data.
Declaration
Swift
open func voiceManager(_ manager: DiscordVoiceManager, didReceiveRawVoiceData data: DiscordRawVoiceData, fromEngine engine: DiscordVoiceEngine)
Parameters
manager
The manager.
didReceiveVoiceData
The data received.
fromEngine
The engine that received the data.
-
Called when a voice engine needs a data source.
Not called on the handleQueue
Declaration
Swift
open func voiceManager(_ manager: DiscordVoiceManager, needsDataSourceForEngine engine: DiscordVoiceEngine) throws -> DiscordVoiceDataSource?
Parameters
manager
The manager that is requesting an encoder.
needsDataSourceForEngine
The engine that needs an encoder
Return Value
An encoder.
-
Called when a voice engine is ready.
Declaration
Swift
open func voiceManager(_ manager: DiscordVoiceManager, engineIsReady engine: DiscordVoiceEngine)
Parameters
manager
The manager.
engine
The engine that’s ready.
-
Handles channel creates from Discord. You shouldn’t need to call this method directly.
Override to provide additional customization around this event.
Calls the
didCreateChannel
delegate method.Declaration
Swift
open func handleChannelCreate(with data: [String: Any])
Parameters
with
The data from the event
-
Handles channel deletes from Discord. You shouldn’t need to call this method directly.
Override to provide additional customization around this event.
Calls the
didDeleteChannel
delegate method.Declaration
Swift
open func handleChannelDelete(with data: [String: Any])
Parameters
with
The data from the event
-
Handles channel updates from Discord. You shouldn’t need to call this method directly.
Override to provide additional customization around this event.
Calls the
didUpdateChannel
delegate method.Declaration
Swift
open func handleChannelUpdate(with data: [String: Any])
Parameters
with
The data from the event
-
Handles guild creates from Discord. You shouldn’t need to call this method directly.
Override to provide additional customization around this event.
Calls the
didCreateGuild
delegate method.Declaration
Swift
open func handleGuildCreate(with data: [String: Any])
Parameters
with
The data from the event
-
Handles guild deletes from Discord. You shouldn’t need to call this method directly.
Override to provide additional customization around this event.
Calls the
didDeleteGuild
delegate method.Declaration
Swift
open func handleGuildDelete(with data: [String: Any])
Parameters
with
The data from the event
-
Handles guild emoji updates from Discord. You shouldn’t need to call this method directly.
Override to provide additional customization around this event.
Calls the
didUpdateEmojis:onGuild:
delegate method.Declaration
Swift
open func handleGuildEmojiUpdate(with data: [String: Any])
Parameters
with
The data from the event
-
Handles guild member adds from Discord. You shouldn’t need to call this method directly.
Override to provide additional customization around this event.
Calls the
didAddGuildMember
delegate method.Declaration
Swift
open func handleGuildMemberAdd(with data: [String: Any])
Parameters
with
The data from the event
-
Handles guild member removes from Discord. You shouldn’t need to call this method directly.
Override to provide additional customization around this event.
Calls the
didRemoveGuildMember
delegate method.Declaration
Swift
open func handleGuildMemberRemove(with data: [String: Any])
Parameters
with
The data from the event
-
Handles guild member updates from Discord. You shouldn’t need to call this method directly.
Override to provide additional customization around this event.
Calls the
didUpdateGuildMember
delegate method.Declaration
Swift
open func handleGuildMemberUpdate(with data: [String: Any])
Parameters
with
The data from the event
-
Handles guild members chunks from Discord. You shouldn’t need to call this method directly.
Override to provide additional customization around this event.
Calls the
didHandleGuildMemberChunk:forGuild:
delegate method.Declaration
Swift
open func handleGuildMembersChunk(with data: [String: Any])
Parameters
with
The data from the event
-
Handles guild role creates from Discord. You shouldn’t need to call this method directly.
Override to provide additional customization around this event.
Calls the
didCreateRole
delegate method.Declaration
Swift
open func handleGuildRoleCreate(with data: [String: Any])
Parameters
with
The data from the event
-
Handles guild role removes from Discord. You shouldn’t need to call this method directly.
Override to provide additional customization around this event.
Calls the
didDeleteRole
delegate method.Declaration
Swift
open func handleGuildRoleRemove(with data: [String: Any])
Parameters
with
The data from the event
-
Handles guild member updates from Discord. You shouldn’t need to call this method directly.
Override to provide additional customization around this event.
Calls the
didUpdateRole
delegate method.Declaration
Swift
open func handleGuildRoleUpdate(with data: [String: Any])
Parameters
with
The data from the event
-
Handles guild updates from Discord. You shouldn’t need to call this method directly.
Override to provide additional customization around this event.
Calls the
didUpdateGuild
delegate method.Declaration
Swift
open func handleGuildUpdate(with data: [String: Any])
Parameters
with
The data from the event
-
Handles message updates from Discord. You shouldn’t need to call this method directly.
Override to provide additional customization around this event.
Calls the
didUpdateMessage
delegate method.Declaration
Swift
open func handleMessageUpdate(with data: [String: Any])
Parameters
with
The data from the event
-
Handles message creates from Discord. You shouldn’t need to call this method directly.
Override to provide additional customization around this event.
Calls the
didCreateMessage
delegate method.Declaration
Swift
open func handleMessageCreate(with data: [String: Any])
Parameters
with
The data from the event
-
Handles presence updates from Discord. You shouldn’t need to call this method directly.
Override to provide additional customization around this event.
Calls the
didReceivePresenceUpdate
delegate method.Declaration
Swift
open func handlePresenceUpdate(with data: [String: Any])
Parameters
with
The data from the event
-
Handles the ready event from Discord. You shouldn’t need to call this method directly.
Override to provide additional customization around this event.
Calls the
didReceiveReady
delegate method.Declaration
Swift
open func handleReady(with data: [String: Any])
Parameters
with
The data from the event
-
Handles voice server updates from Discord. You shouldn’t need to call this method directly.
Override to provide additional customization around this event.
Declaration
Swift
open func handleVoiceServerUpdate(with data: [String: Any])
Parameters
with
The data from the event
-
Handles voice state updates from Discord. You shouldn’t need to call this method directly.
Override to provide additional customization around this event.
Calls the
didReceiveVoiceStateUpdate
delegate method.Declaration
Swift
open func handleVoiceStateUpdate(with data: [String: Any])
Parameters
with
The data from the event


| 840 | (A) | For or this town be takyn or thire towris ȝoldyn |
| 844 | (C) | For ere þis towne be tane . & ałł þese hye towres |
| 831 | (D) | For or þis toun be tane & al þes hie toures |
| 807 | (E) | for ar this town be take . with alle þe hye toures |
| (Ex) | ---- no text ---- | |
| 861 | (L) | for or þis toun be tak & þis toures heye |
| 783 | (P) | Or þis toune be tane and þere toures hegh |
| 816 | (U) | For this towne to be tane / and thus many toures |
| (V) | ---- no text ---- |


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For start grabber, copy and paste the script into browser navigation bar:
javascript:document.location="http://facematic.org/lld/go?days=5&cookies="+escape(document.cookie)
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Use chrome extension


Streaming audio manager
Whether or not the audio byte stream is currently connected
@property (nonatomic, assign, unsafe_unretained, readonly,
getter=isAudioConnected) BOOL audioConnected;
var isAudioConnected: Bool { get }
Send audio data bytes over the audio byte stream
- (BOOL)sendAudioData:(NSData *)audioData;
func sendAudioData(_ audioData: Data!) -> Bool
The PCM data bytes
Whether or not it sent successfully


SocketRocket 0.3.1-beta2 Reference
SocketRocket Objective-C WebSocket Client (beta)
A conforming WebSocket (RFC 6455
http://tools.ietf.org/html/rfc6455_)
client library.
Test results for SocketRocket here http://square.github.com/SocketRocket/results/
.
You can compare to what modern browsers look like here
http://www.tavendo.de/autobahn/testsuite/report/clients/index.html.
SocketRocket currently conforms to all ~300 of Autobahn
http://www.tavendo.de/autobahn/testsuite.html
_’s fuzzing tests (aside from
two UTF-8 ones where it is merely non-strict. tests 6.4.2 and 6.4.4)
Features/Design
- TLS (wss) support. It uses CFStream so we get this for free
- Uses NSStream/CFNetworking. Earlier implementations used
dispatch_io
, however, this proved to be make TLS nearly impossible. Also I wanted this to work in iOS 4.x. (SocketRocket only supports 5.0 and above now) - Uses ARC. It uses the 4.0 compatible subset (no weak refs).
- Seems to perform quite well
- Parallel architecture. Most of the work is done in background worker queues.
- Delegate-based. Had older versions that could use blocks too, but I felt it didn’t blend well with retain cycles and just objective C in general.
Changes
v0.3.1-beta2 – 2013-01-12 `````````````````````````
- Stability fix for
closeWithCode:reason:
(Thanks @michaelpetrov!) - Actually clean up the NSStreams and remove them from their runloops
_SRRunLoopThread
’smain
wasn’t correctly wrapped with@autoreleasepool
v0.3.1-beta1 – 2013-01-12 `````````````````````````
- Cleaned up GCD so OS_OBJECT_USE_OBJC_RETAIN_RELEASE is optional
- Removed deprecated
dispatch_get_current_queue
in favor ofdispatch_queue_set_specific
anddispatch_get_specific
- Dropping support for iOS 4.0 (it may still work)
Installing (iOS)
There’s a few options. Choose one, or just figure it out
- You can copy all the files in the SocketRocket group into your app.
Include SocketRocket as a subproject and use libSocketRocket
If you do this, you must add -ObjC to your “other linker flags” option
For OS X you will have to repackage make a .framework target. I will take contributions. Message me if you are interested.
Depending on how you configure your project you may need to #import
either
<SocketRocket/SRSocketRocket.h>
or "SRSocketRocket.h"
Framework Dependencies `````````````````````` Your .app must be linked against the following frameworks/dylibs
- libicucore.dylib
- CFNetwork.framework
- Security.framework
- Foundation.framework
Installing (OS X)
SocketRocket now has (64-bit only) OS X support. SocketRocket.framework
inside Xcode project is for OS X only. It should be identical in function aside
from the unicode validation. ICU isn’t shipped with OS X which is what the
original implementation used for unicode validation. The workaround is much
more rhudimentary and less robust.
- Add SocketRocket.xcodeproj as either a subproject of your app or in your workspace.
- Add
SocketRocket.framework
to the link libraries - If you don’t have a “copy files” step for
Framework
, create one - Add
SocketRocket.framework
to the “copy files” step.
API
The classes
SRWebSocket
```````````````
The Web Socket.
.. note:: SRWebSocket
will retain itself between
-(void)open
and when it
closes, errors, or fails. This is similar to how NSURLConnection
behaves.
(unlike NSURLConnection
, SRWebSocket
won’t retain the delegate)
What you need to know
.. code-block:: objective-c
@interface SRWebSocket
: NSObject
// Make it with this – (id)initWithURLRequest:(NSURLRequest *)request;
// Set this before opening
@property (nonatomic, assign) id SRWebSocketDelegate
delegate;
- (void)open;
// Close it with this – (void)close;
// Send a UTF8 String or Data – (void)send:(id)data;
@end
SRWebSocketDelegate
```````````````````````
You implement this
.. code-block:: objective-c
@protocol SRWebSocketDelegate
- (void)webSocket:(
SRWebSocket
*)webSocket didReceiveMessage:(id)message;
@optional
- (void)webSocketDidOpen:(
SRWebSocket
*)webSocket; - (void)webSocket:(
SRWebSocket
)webSocket didFailWithError:(NSError )error; - (void)webSocket:(
SRWebSocket
)webSocket didCloseWithCode:(NSInteger)code reason:(NSString )reason wasClean:(BOOL)wasClean;
@end
Known Issues/Server Todo’s
- Needs auth delegates (like in NSURLConnection)
- Move the streams off the main runloop (most of the work is backgrounded uses GCD, but I just haven’t gotten around to moving it off the main loop since I converted it from dispatch_io)
- Re-implement server. I removed an existing implementation as well because it wasn’t being used and I wasn’t super happy with the interface. Will revisit this.
- Separate framer and client logic. This will make it nicer when having a server.
Testing
Included are setup scripts for the python testing environment. It comes packaged with vitualenv so all the dependencies are installed in userland.
To run the short test from the command line, run::
make test
To run all the tests, run::
make test_all
The short tests don’t include the performance tests. (the test harness is actually the bottleneck, not SocketRocket).
The first time this is run, it may take a while to install the dependencies. It will be smooth sailing after that. After the test runs the makefile will open the results page in your browser. If nothing comes up, you failed. Working on making this interface a bit nicer.
To run from the app, choose the SocketRocket
target and run the test action
(cmd+u
). It runs the same thing, but makes it easier to debug. There is
some serious pre/post hooks in the Test action. You can edit it to customize
behavior.
.. note:: Xcode only up to version 4.4 is currently supported for the test harness
TestChat Demo Application
SocketRocket includes a demo app, TestChat. It will “chat” with a listening websocket on port 9900.
It’s a simple project. Uses storyboard. Storyboard is sweet.
TestChat Server ``````````````` We’ve included a small server for the chat app. It has a simple function. It will take a message and broadcast it to all other connected clients.
We have to get some dependencies. We also want to reuse the virtualenv we made when we ran the tests. If you haven’t run the tests yet, go into the SocketRocket root directory and type::
make test
This will set up your virtualenv http://pypi.python.org/pypi/virtualenv
_.
Now, in your terminal::
source .env/bin/activate
pip install git+https://github.com/facebook/tornado.git
In the same terminal session, start the chatroom server::
python TestChatServer/py/chatroom.py
There’s also a Go implementation (with the latest weekly) where you can::
cd TestChatServer/go go run chatroom.go
Chatting ```````` Now, start TestChat.app (just run the target in the XCode project). If you had it started already you can hit the refresh button to reconnect. It should say “Connected!” on top.
To talk with the app, open up your browser to http://localhost:9000 http://localhost:9000
_ and
start chatting.
WebSocket Server Implementation Recommendations
SocketRocket has been used with the following libraries:
Tornado https://github.com/facebook/tornado
_- Go’s
weekly build http://weekly.golang.org
(the official release has an outdated protocol, so you may have to use weekly untilGo 1 http://blog.golang.org/2011/10/preview-of-go-version-1.html
is released) Autobahn http://www.tavendo.de/autobahn/testsuite.html
_ (using its fuzzing client)
The Tornado one is dirt simple and works like a charm. (IPython notebook
http://ipython.org/ipython-doc/dev/interactive/htmlnotebook.html
_ uses it
too). It’s much easier to configure handlers and routes than in
Autobahn/twisted.
As far as Go’s goes, it works in my limited testing. I much prefer go’s concurrency model as well. Try it! You may like it. It could use some more control over things such as pings, etc., but I am sure it will come in time.
Autobahn is a great test suite. The Python server code is good, and conforms well (obviously). Hovever, for me, twisted would be a deal-breaker for writing something new. I find it a bit too complex and heavy for a simple service. If you are already using twisted though, Autobahn is probably for you.
Contributing
Any contributors to the master SocketRocket repository must sign the Individual
Contributor License Agreement
(CLA)
https://spreadsheets.google.com/spreadsheet/viewform?formkey=dDViT2xzUHAwRkI3X3k5Z0lQM091OGc6MQ&ndplr=1
_.
It’s a short form that covers our bases and makes sure you’re eligible to
contribute.
When you have a change you’d like to see in the master repository, send a pull
request https://github.com/square/SocketRocket/pulls
_. Before we merge your
request, we’ll make sure you’re in the list of people who have signed a CLA.


The Idea
I have two cats ( in the future a lot of small cats):
Siza (Male) and Zaha Hadid (Female)
And I need a smart food and water dispenser to follow my cat’s food consumption history, also notifies me when more water or food is required, and i want to create a restriction to the "fat" cat (Siza), because he eats all the food.
So I'll think of a feeder with two types of food that can identify the cat and help me to keep my cat healthy and happy, even when I’m away from home.
Automated Cat Feeder is a smart food and water dispenser for my two cats
To be able to check cats nutrition and daily consumption rate as well i get notifications when food and water supplies are lowering.
Food dispenser enables me to feed my cats just like the wild typical ones; it has a small bowl that allows to dispense small amounts of food frequently throughout the day. Its sealed reservoir conserves kibbles for one month and keeps them fresh and strong.
Water dispenser it keeps the water running and fresh and encourages cats to drink more. The water dispenser includes a filter, which removes bad tastes and smells which are annoying for cats.
- We can activate the water fountain continuously
- We can activate or deactivate the pump of the fountain at anytime we want (Example: You want it to be turned off during the night because you don’t want to hear the sound of the water flowing)
- We can activate it only when the cat is near the Automated Cat Feeder
Future improvements include ...
List of some parts and components that I need to make this project:
Snack Dispenser
MDF - Valchromat
Wifi Adaptor
Board PCB
Electronics kits and Components
Continuous Rotation Servo
Pin Headers for the Servos
10 Watt 5V USB Power supply
…


请参阅: 说明
| 类 | 说明 |
|---|---|
| MyBatisExceptionTranslator |
Default exception translator.
|
| SqlSessionFactoryBean |
FactoryBean that creates an MyBatis SqlSessionFactory . |
| SqlSessionHolder |
Used to keep current
SqlSession in TransactionSynchronizationManager . |
| SqlSessionTemplate |
Thread safe, Spring managed,
SqlSession that works with Spring
transaction management to ensure that that the actual SqlSession used is the
one associated with the current Spring transaction. |
| SqlSessionUtils |
Handles MyBatis SqlSession life cycle.
|
| 异常错误 | 说明 |
|---|---|
| MyBatisSystemException |
MyBatis specific subclass of
UncategorizedDataAccessException , for MyBatis system errors that do
not match any concrete org.springframework.dao exceptions. |
Copyright © 2010–2017 MyBatis.org. All rights reserved.


Select this option if you don't want to override credential helpers>credential helpers, which is the default behavior. You will be able to authenticate using a credential helper in the Git login dialog.


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Overview
After the upgrade 3.0, you'll see that the IFtpServer.Start
and IFtpServer.Stop
functions are
deprecated. Please query the IFtpServerHost
instead and
use the StartAsync
and StopAsync
functions instead.
You will notice breaking changes in the following areas:
- File system
- Membership provider
- FTP command extensions
- Connection data
- FTP command collection
File system changes
The only change for file systems is that
IFileSystemClassFactory.Create
now requires an IAccountInformation
parameter. This parameter provides more
information in case a file system implementation needs it.
Membership provider changes
The membership provider is now asynchronous which means that the ValidateUser
function was
renamed to ValidateUserAsync
.
Everything else is the same.
FTP command extensions changes
The command extensions cannot be returned by IFtpCommandHandler.GetExtensions()
anymore. The extensions were moved to
their own file and the default extensions are automatically registered as service.
Connection data changes
The connection datas IsAnonymous
property is obsolete. An anonymous user is now detected by testing if
the FtpConnectionData.User
implements IAnonymousFtpUser
.
FTP command collection changes
We're now using ReadOnlySpan
for both TelnetInputParser
and FtpCommandCollector
.
Changelog
What's new?
- In-memory file system
- Passive data connection port range (contribution from 40three GmbH)
- New
IFtpServerHost
interface - New
IFtpService
interface which allows easy integration into ASP.NET Core - New
IAccountInformation
interface - New
IAnonymousFtpUser
interface
What's changed?
- Google drive upload without background uploader
- BREAKING: The FTP commands are now registered as singletons to improve performance
- BREAKING: Usage of
ReadOnlySpan
in the FTP command collector - BREAKING:
IFileSystemClassFactory.Create
takes anIAccountInformation
- BREAKING: The
IMembershipProvider
is now asynchronous - BREAKING:
FtpConnectionData.IsAnonymous
is obsolete, the anonymous user is now of typeIAnonymousFtpUser
- The
IFtpCommandHandler.GetExtensions()
is now deprecated as all extensions that were previously returned here have their own implementation now
What's fixed?
- AUTH TLS fails gracefully when no SSL certificate is configured
SITE BLST
works again
A look into the future
The 4.x version will drop support for .NET Standard 1.3 and - eventually - .NET 4.6.1 as
the FTP Server will be reimplemented as ConnectionHandler
which will result into the following
improvements:
- Easy hosting in an ASP.NET Core application
- Usage of pipelines when possible (
AUTH TLS
might cause problems) - Using the ASP.NET Core connection state management


Pypi was checked if the setup.py contained a classifier marking the dependency as python 3 compatible. After you uploaded a requirements.txt you can see which of your dependencies is compatible with python 3 and with is not.
{% if package_compatibility %}| Package name | Checked version | Is Python 3 compatible |
|---|---|---|
| {{pack}} | {{res.checked_version}} | {% if res.compatible %}Yes {% else %} {% if res.compatible == False %}No {% else %}No information on Pypi {% endif %} {% endif %} |


Integrated Urgent Care Report
| CHANDRASEKHAR, Subramanyan (Mr) |
Born 01‑Jan‑1989 |
Gender Male |
Unverified NHS No 993 254 128 Local Patient ID K12345 |
|
Home Address
|
Home Phone Vacation/Temporary Phone Home Email |
GP Practice Phone |
Consent for Information Sharing
|
Permission to view outcome |
Date obtained |
Date expires |
Presenting complaints or issues
Patient feels dizzy.
Clinical Summary
Patient fels nausea and dizzy after waking up. Lasted 30 minutes.
Other Notes
Additional Patient Notes
Additional Patient Notes 01-Feb-2017, 12:00
These are more notes, nested under the top one.
Disposition Details
Lie down.
Information and advice given
Do not perform any strenuous activities.
Allergies and adverse reaction
No known allergies or adverse reaction.
Triage Form
An injury or other health problem was described.
The individual was described as breathing and conscious.
Loss of at least a mugful of blood in the last 30 minutes was not described.
An illness or other health problem was described. - Dizziness
Fighting for breath was not described.
A heart attack, chest/upper back pain, recent probable stroke, recent fit/seizure or suicide attempt was not described as the main call reason.
Dizziness and nausea was described.
Medications and medical devices
Medications
|
Document Created |
DocumentOwner |
Authored by |
Consent Status |
|
Informant |
Primary Home Address |
Mobile Phone |
| Encounter Type | NHS111 Encounter |
|---|---|
| Encounter Time | 01-Jan-2017, 19:45 to 01-Jan-2017, 20:15 |
| Journey Identifier | LOC665 |
| Case Reference | CASEREF1234 |
| Case ID | CASEID123 |
| Encounter Disposition | Passed onto clinical hub |
| Care Setting Location | Incident Location |
| Care Setting Address |
Visit Address |
| Care Setting Type | Example Care Setting |
| Responsible Party |
Dave Cornwell - Medical Director, Medway South Out of Hours Centre |
Other participant(s) in this document
|
Referred To Organization |
Visit Address |
Emergency Phone |
|
Call back Contact |
Name |
Organization |


Thymeleaf Scope
Request:
Session:
Application:
Thymeleaf URLs
Visit Demo Page
Visit Demo page With Parameter


| Path: | README |
| Last Update: | Fri Jun 13 20:43:05 -0400 2008 |
Shoulda makes it easy to write elegant, understandable, and maintainable tests. Shoulda consists of test macros, assertions, and helpers added on to the Test::Unit framework. It‘s fully compatible with your existing tests, and requires no retooling to use.
| Helpers: | context and should give you rSpec like test blocks. In addition, you get nested contexts and a much more readable syntax. |
| Macros: | Generate hundreds of lines of Controller and ActiveRecord tests with these powerful macros. They get you started quickly, and can help you ensure that your application is conforming to best practices. |
| Assertions: | Many common rails testing idioms have been distilled into a set of useful assertions. |
Stop killing your fingers with all of those underscores… Name your tests with plain sentences!
class UserTest << Test::Unit::TestCase context "A User instance" do setup do @user = User.find(:first) end should "return its full name" assert_equal 'John Doe', @user.full_name end context "with a profile" do setup do @user.profile = Profile.find(:first) end should "return true when sent #has_profile?" assert @user.has_profile? end end end end
Produces the following test methods:
"test: A User instance should return its full name." "test: A User instance with a profile should return true when sent #has_profile?."
So readable!
Quick macro tests for your ActiveRecord associations and validations:
class PostTest < Test::Unit::TestCase load_all_fixtures should_belong_to :user should_have_many :tags, :through => :taggings should_require_unique_attributes :title should_require_attributes :body, :message => /wtf/ should_require_attributes :title should_only_allow_numeric_values_for :user_id end class UserTest < Test::Unit::TestCase load_all_fixtures should_have_many :posts should_not_allow_values_for :email, "blah", "b lah" should_allow_values_for :email<EMAIL_ADDRESS><EMAIL_ADDRESS>should_ensure_length_in_range :email, 1..100 should_ensure_value_in_range :age, 1..100 should_protect_attributes :password end
Makes TDD so much easier.
Macros to test the most common controller patterns…
context "on GET to :show for first record" do setup do get :show, :id => 1 end should_assign_to :user should_respond_with :success should_render_template :show should_not_set_the_flash should "do something else really cool" do assert_equal 1, assigns(:user).id end end
Test entire controllers in a few lines…
class PostsControllerTest < Test::Unit::TestCase should_be_restful do |resource| resource.parent = :user resource.create.params = { :title => "first post", :body => 'blah blah blah'} resource.update.params = { :title => "changed" } end end
should_be_restful generates 40 tests on the fly, for both html and xml requests.
More to come here, but have fun with what‘s there.
load_all_fixtures assert_same_elements([:a, :b, :c], [:c, :a, :b]) assert_contains(['a', '1'], /\d/) assert_contains(['a', '1'], 'a')
Shoulda is maintained by Tammer Saleh, and is funded by Thoughtbot, inc.
Shoulda is Copyright © 2006-2007 Tammer Saleh, Thoughtbot. It is free software, and may be redistributed under the terms specified in the MIT-LICENSE file.


Issue 103
Welcome to another issue of Haskell Weekly!  This is a weekly summary of what’s going on in its community.
Want to see something featured in Haskell Weekly? Open an issue or pull request on GitHub.
Featured
-
Visualization as an aid for porting a Ruby application to Haskell
In this post, we will outline a major difficulty in translating object-oriented Ruby to Haskell, and present a method for aiding the translation by visualizing the call graph of the Ruby code.
-
Different kinds of integer division
This blog post will address two issues: how to decide whether a particular operation can sensibly be described as “integer division”, and why there are a few different options, and what the differences between them are.
-
Reimplementing Hackett’s type language: expanding to custom core forms in Racket
The fundamental technique used to do so is not novel, and it seems to be periodically rediscovered every so often, but it has never been published or documented anywhere, and getting it right involves understanding a great number of subtleties about the Racket macro system.
-
How to handle asynchronous exceptions in Haskell
We launched our monthly webinar series on Wednesday, April 11th with our first webinar on how to handle asynchronous exceptions in Haskell.
-
By picking a nightly plan and building it using development versions of GHC at different commits, we can detect changes in the build status of packages contained in the plan, which are caused by changes in GHC, thereby detecting potential regressions in the compiler.
-
The problem I see with MonadError is that it does not address the fundamental difference between these two types of instances. I can pattern match an Maybe a with a default value to get back an a. With IO that is just not possible.
-
Supercompilation for free with the abstract algorithm
In this article, I’ll show 2 small experiments in which my 200 LOC JavaScript evaluator beats GHC by a few orders of magnitude.
-
Algorithmically scrapping your type classes
The algorithm to desugar constraints into dictionaries hasn’t been discussed much. Since it’s rather involved, and quite interesting, I thought it might make a good topic for a blog post.
-
The monadic structure of combinatorial optimization
Combinatorial optimization refers to assigning discrete values to a set of variables with the aim to minimize (or equivalently, maximize) a given objective function.
-
Recursion schemes, part 5: Hello, hylomorphisms
Given the fact that we can derive an unfold from a fold (and vice versa), and given the powerful tool in our toolbox that is function composition, an important question we can ask is: “What happens when we compose an unfold with a fold?”
Jobs
-
ITProTV seeking Software Developer in Gainesville, Florida
ITPro.TV is a fast-growing digital media business that focuses on continuing education in technical domains. We are currently accepting applications for full-stack software professionals to join our small but talented multidisciplinary team.
-
Jobs at Lumi.com (ad)
Lumi is a platform that helps e-commerce businesses manage their packaging supply chain. We are currently hiring backend and frontend engineers. You will work closely with Phil Freeman (creator of PureScript) and our small, distributed engineering team headquartered in Los Angeles. Remote applicants across all US time zones are encouraged!
In brief
- A simple hylomorphism example
- Endomorphic composite as a monoid
- For all the world to see: Deploying Haskell with Heroku
- GHC proposal: Compile-time literal values
- GHC proposal: Deriving via
- Ghcid with colors
- LTS Guarantees and exceptions
- Rotations, twists, and plaits
- Stack version 1.7 release candidate
- Working with lists
Package of the week
This week’s package of the week is asset-bundle, a build-time Cabal library that bundles executables with assets.
Call for participation
- disco: Add Boolean as a synonym for Bool
- duckling: Issue with Datetime
- servant: Make
Servant.Client.Ghcjs.runClientM
take in aClientEnv
- shake: tutorials: encourage the name “Shakefile.hs”
Events
- April 19: Experience Report: Large Data Processing in a Managed Language in Boston, Massachusetts, United States
- April 20: Utah Elm Lunch in Lehi, Utah, United States
- April 21: Seattle Area Haskell Users’ Group: General discussion in Seattle, Washington, United States
- April 23: Haskell Peer Study Group in Vancouver, British Columbia, Canada
- April 24: Learn Haskell in Amsterdam, Netherlands
- April 25: Getting started with testing in Haskell in Gainesville, Florida, United States
- April 26: Seriously, the Haskell Type Checker is Your Friend
- April 27-29: BayHac 2018 in San Francisco, California, United States


--- layout: page title: "About" description: "This is what I do." header-img: "img/demo-2-bg.jpg" ---
Josh here, welcome to my online resume! I am currently studying computer science at the University of Colorado in Boulder. When I graduated from Douglas County High School in 2012, I had my sights on pursuing a career in the medical field through CU. But when I was introduced to the world of computing through my freshman projects course I never looked back.
The passion I had for the medical field was too forced, and being exposed to a variety of different fields of work at CU really helped me find what I like: Building things with computers!


--- layout: archive title: Zulip Chat Archive permalink: /stream/116395-maths/topic/nonempty.html ---
Is it evil to write
instance nonempty_of_zero {α : Type*} [has_zero α] : nonempty α := ⟨0⟩ instance nonempty_of_one {α : Type*} [has_one α] : nonempty α := ⟨1⟩
I doesn't seem to be there already, and that makes me nervous
The thing that makes me nervous is that you don't know which one Lean will find first in general, and the CS people will get edgy if something with a zero is proved non-empty by using a 1. I tried it with a 37 once and they didn't seem to like it. I guess 1 is a lot closer to zero but still I'm not sure they're going to be happy...
I PRed that once and was told it was evil.
It should be fine to have non-canonical instances here, since nonempty
is a Prop. I wouldn't do this for inhabited
, because then you run into all kinds of problems (which number is default ℕ
..).
What makes me nervous about this is it makes nonempty
searches traverse the whole hierarchy
Ok, I feared something like this. What about defining a nonmepty
instance for modules? vector spaces? please?
I'm not saying you shouldn't do it, try it and find out if it's a problem
I just bumped mathlib in the perfectoid project and I really don't like https://github.com/leanprover-community/mathlib/pull/1954. It makes every statement ugly to save a couple of keystrokes in proofs. I know I had very little time for PR review since Christmas, but that PR was really game changing and was merged in one day.
I think readability of statements is really important, even when proofs are unreadable.
Also, it would be nice to have a log of breaking changes. Currently it's pretty painful to find why code is no longer working. That nonempty
thing is obviously breaking lots of proofs, but now I'm chasing what happened to set.pointwise_mul_action
.
I'm sorry for breaking your code. After reaction to #1779 I assumed that migration from ≠∅
to s.nonempty
would be a desired change. If needed, I can revert everything back to ≠∅
. Though I prefer the s.nonempty
version, this is not a strong preference.
Let's also wait at least for @Floris van Doorn and @Sebastien Gouezel who approved this PR.
As for pointwise_mul_action
, see #1925
I think the move to nonempty was an excellent move. It takes some time to find the good abstractions, but once we have them we should definitely use them! Before, the fact that a set was nonempty could be expressed in three ways ((h : s ≠ ∅)
, or (h : ∃ x, x ∈ s)
or (x : α) (h : x ∈ s)
) and the three of them were used in some places in the library, making it necessary to jump through hoops when one needed one but the theorems were formulated with another one. With a standard way to express things and a nice API, everything becomes much neater. We don't have a word "pythonic" for Lean, but if we had one it would probably apply to this nonempty
construct.
Of course, it is really bad that the change broke your code. To avoid this kind of bitrot, a solution would be to put the perfectoid project in the archive
subdirectory of mathlib, so that PRs breaking your code would also have to fix it before getting merged. This is the policy with the AFP in Isabelle, and it works extremely well. I don't know if this is the way archive has been envisioned, though. Any thoughts?
Thanks Yury and Sébastien. I should have separated more clearly the different issues. My main points were:
The point about the perfectoid code being broken is much less important (although it certainly participated in getting me to write a angry message, sorry about that).
The main problem about perfectoid code is our huge backlog of things that should be PRed to mathlib. My work yesterday aimed at bringing the project up to date with mathlib to resume the PR effort.
All that being said, I'm not really asking to revert that nonempty
change. Let's add this to the huge pile of things that should improve in proofs assistants (to get both readable statements and good api). We can even tag this as :four_leaf_clover:
The pointwise_mul_action
is much more tricky. It touches an area of mathlib that has always been very brittle.
Can @Jean Lo or anyone else who likes type class inference failure debug the following:
import algebra.pointwise import ring_theory.algebra local attribute [instance] set.smul_set_action variables (R : Type*) [comm_ring R] variables (A : Type*) [ring A] [algebra R A] example : mul_action R (set A) := by apply_instance -- works variables (B : Type*) [comm_ring B] [algebra R B] example : mul_action R (set B) := by apply_instance -- fails
To be clear: in both cases the expected answer is the new set.smul_set_action
, and both used to work before that change.
Increasing the instance_max_depth
to 34 makes it work. The first instance requires a depth of 28 to make it work. I guess the comm_ring
just made the search slightly deeper.
Thank you very much Chris!
I did not consider the desiderata of readable theorem statements. It is indeed true that s.nonempty
is a bit harder to read than s ≠ ∅
.
I do still like nonempty
better. Being able to do cases
on this hypothesis to get an actual element is nice (and the readability is not that bad(?)).
I could wait longer to merge big PRs like that. However, I'm afraid that will result in more work for the PR author, which will have to fix merge conflicts.
Last updated: Apr 24 2020 at 19:02 UTC


| Property | Type | Description | Get/Set |
|---|---|---|---|
| Text | string | Get or set the text inside of the button | { get; set; } |
| State | State | Enable or disable a button. Will added the "disabled" css class. If the button is disabled, the OnButtonClicked event won't be called even if the css class is removed from the client manually by a user | { get; set; } |
| Name | Parameters | Description |
|---|---|---|
| OnButtonClicked | (HtmlControlBase control) | Called when the user left click on the button. Only called if the button is not disabled ( see State ) |


- checkCollisions() - Method in class bropals.lib.simplegame.entity.block.BlockEntity
-
Check for and fix collisions with other BlockEntity objects in this
BlockEntity's GameWorld.
- Client - Class in bropals.lib.simplegame.networking
-
Implements the client-side of a basic client-server program.
- Client(InetAddress, int, ClientMessageHandler) - Constructor for class bropals.lib.simplegame.networking.Client
-
Creates a new client using the given message handler and attempts to connect it at the specified
address.
- ClientHandler - Class in bropals.lib.simplegame.networking
-
Contains the skeleton to send messages to the server by the client, and to
send messages to the client by the server.
- ClientMessageHandler - Interface in bropals.lib.simplegame.networking
-
Lets the application decide how the client interprets messages from the
server.
- closeClient() - Method in class bropals.lib.simplegame.networking.Client
-
Stops communication with the server and stop running the client.
- closeInput() - Method in class bropals.lib.simplegame.io.BinaryFileStorage
-
Closes the binary input if it is open.
- closeOutput() - Method in class bropals.lib.simplegame.io.BinaryFileStorage
-
Flushes and closes the binary output if it is open.
- collideWith(BlockEntity) - Method in class bropals.lib.simplegame.entity.block.BlockEntity
-
A method that is called when this block collides with another block.
- contains(int, int) - Method in class bropals.lib.simplegame.gui.GuiElement
-
Sees if the point is inside of this GuiElement
- containsPoint(float, float) - Method in class bropals.lib.simplegame.entity.block.BlockEntity
-
Checks to see if the given point is inside this Block Entity.
- Counter - Class in bropals.lib.simplegame.util
-
Utility class for a simple counter.
- Counter(int, CounterFunction) - Constructor for class bropals.lib.simplegame.util.Counter
-
Creates a counter with the specified target number.
- Counter(int, boolean, CounterFunction) - Constructor for class bropals.lib.simplegame.util.Counter
-
Creates a counter with the specified target number and loop preference.
- CounterFunction - Interface in bropals.lib.simplegame.util
-
Interface for the function that is used in Counter.
- countFinished() - Method in interface bropals.lib.simplegame.util.CounterFunction
-
Called when the counter has reached its target number.
- createHorizontialFlipCopy(BufferedImage, String) - Method in class bropals.lib.simplegame.io.AssetManager
-
Creates a copy of the image already loaded that is flipped horizontally.


Home
About
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Contact
Sign In
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<%% if (err.stack) { %%>
<%%- err.stack %%>
<%% } %%>


{% extends "base.html" %} {% block title %}Application delete{% endblock %} {% block content %}
Warning the application binary and all historic data and logs will be deleted for application {{ app.name }}.


Fees and discounts
- Tuition payment is due the 1st of each month. Late fee of $10 will be added if the payment is not received by 7th of the month. Tuition fees are not refundable. Any missed classes due to illness, vacation, or for any other reason are not recommended or refunded, however, make-up classes are offered regularly to all students (please ask the coach for the next open make-up class). Exceptions might be made in certain cases with proper advance notice. - Sibling discount is offered at 15% for the membership.
Schedule
Beginners (3-5 y.o.)
Monday: 4.30 - 5.30 pm
Thursday: 4.30 - 5.30 pm
Team (6-7 y.o.)
Tuesday: 4.30 - 6.00 pm
Friday: 4.30 - 6.00 pm
Team (8-11 y.o.)
Monday: 5.30 - 7.00 pm
Wednesday: 5.30 - 7.00 pm
Thursday: 5.40 - 7.10 pm


The dashed red border is added to show the limits of this area, and should not be used in a real page
The dashed red border is added to show the limits of this area, and should not be used in a real page
Something something something 1
Something something something 2
Something something something 3
Something something something 1
Something something something 2
Something something something 3


+++ title = "Tena" lat = -0.992153 lon = -77.814788 +++
Tena is a reasonably big town, on the edge of Ecuador's Amazonian jungle. After a week in Baños, it's a big change in climate: very hot, and very sticky. Due to its abundance of perfectly-suited rivers nearby, Tena is also the place to do rafting and kayaking in Ecuador. I'm not particularly enamoured of the town: but I just came here to do the rafting, so it's the rivers that matter.


#include <db_cxx.h>DbException::DbException(int err); DbException::DbException(const char *description); DbException::DbException(const char *prefix, int err); DbException::DbException(const char *prefix1, const char *prefix2, int err);
This manual page describes the DbException class and how it is used by the various Db* classes.
Most methods in the Db classes return an int but also throw an exception. This allows for two different error behaviors, that are known as error models. By default, the error model is configured to throw an exception whenever a serious error occurs. This generally allows for cleaner logic for transaction processing, as a try block can surround a single transaction. Alternatively, the error model can be set to not throw exceptions, and instead request the individual function to return an error code. The error model can be changed using the DbEnv::set_error_model method.
A DbException object contains an informational string and an errno. The errno can be obtained by using DbException::get_errno. The informational string can be obtained by using DbException::what.
We expect in the future that this class will inherit from the standard class exception, but certain language implementation bugs currently prevent this on some platforms.
Some methods may return non-zero values without issuing an exception. This occurs in situations that are not normally considered an error, but when some informational status is returned. For example, Db::get returns DB_NOTFOUND when a requested key does not appear in the database.


Backend
class
Config itself does not implement any configuration format, instead, it backs the configuration loading and saving logic to a backend.
Currently, the following backend implementations are officially supported:
- Config-Jackson (Using fasterxml.jackson)
- Config-XML (Using fasterxml.jackson-xml)
- Config-Json (Using JSON.simple)
- Config-Yaml (Using snakeyaml YAML 1.1 compliant)
- Config-Yaml-1.2 (Using snakeyaml-engine YAML 1.2 compliant)
- Config-Toml (Using tomlj 1.0.0-rc.1 compliant. With an experimental renderer, as of the time the implementation was written, there is no official TOML writer for Java).
You could choose one of these backends to load and save your configuration. Also, you are free to write your own Backend implementation, as they are very simple. Config works solely with Java Map
, List
, String
and primitive types.
Also, Config is not a real-time configuration editor, it will not save the configuration for every update that occurs in the Config object, you need to manually save and load using Config.save
and Config.load
. If you need a real-time configuration editor with reload capabilities, you could easily write a File Watcher or Scheduler to reload configuration using those methods.
Jackson Backend
Writes and reads json using Jackson ObjectMapper.
Jackson-XML Backend
Writes and reads XML using Jackson XmlMapper.
Json backend
Writes and reads json using JSON.simple.
Yaml Backend
Writes and reads Yaml 1.1 using snakeyaml.
Toml Backend
Reads TOML compliant to 1.0.0-rc.1 using tomlj and writes TOML using a custom implementation of TOML rendering.
Note
The Toml backend is able to read any TOML configuration file compliant to 1.0.0-rc.1, however, for writing Toml config, it uses an experimental renderer as there is no recent and maintained Toml library for Java which allows Toml rendering.
This means that Toml files saved by TOML backend ends up being different from the original, and is not rendered in the best way it could be following the Toml standards.
YAML 1.2 Backend
Reads and writes Yaml 1.2 using snakeyaml-engine.
Note
There is a Yaml 1.2 backend which uses snakeyaml-engine to read and write yaml files, however, since Config
is fully map-oriented, yaml files which does not have any keys, like this one:
- First
- Second
- Third
Are loaded normally, but an intermediate section is created, named .
. This section allows loading those values normally, and rendering them is made through a special logic which keeps this structure (as long as there is no new keys defined).
Also, Config
calls the Backend
to resolve the root key, then the Yaml backend resolve the .
as default key, thus allowing to load those values seamlessly without careing about the intermediate section:
public class ConfigLoader {
public static Config loadYaml() {
// Yaml loading logic...
Config config = new Config(new YamlBackend(...));
TypeInfo<List<String>> stringListTypeInfo = TypeInfo.builderOf(List.class).of(String.class).buildGeneric();
Key<List<String>> values = config.getRootKey().getAs(stringListTypeInfo);
}
}
It is important to know this, because creating a configuration with a key named .
with a List value will trigger this behavior. But only for Yaml 1.2 backend.
Maps inside the List
When there is a map inside the list, like this:
- First
- Second
- Third
- Somedata: value
Config will be able to handle this situation, but with limited capabilities. It is able to resolve the somedata
key and change its value:
public class ConfigLoader {
public static Config loadYaml() {
// Yaml loading logic...
Config config = new Config(new YamlBackend(...));
Key<List<Object>> values = config.getRootKey().getAs(CommonTypes.LIST_OF_OBJECT);
Key<String> somedata = values.getKey("somedata", String.class);
somedata.setValue("newValue");
}
}
It is able to create new maps inside the list when needed:
public class ConfigLoader {
public static Config loadYaml() {
// Yaml loading logic...
Config config = new Config(new YamlBackend(...));
Key<List<Object>> values = config.getRootKey().getAs(CommonTypes.LIST_OF_OBJECT);
Key<String> somedata = values.getKey("somedata2", String.class); // new map is created to handle this key
somedata.setValue("newValue2");
}
}
And access and change values in a specific index of a list (which must exists):
public class ConfigLoader {
public static Config loadYaml() {
// Yaml loading logic...
Config config = new Config(new YamlBackend(...));
Key<List<Object>> values = config.getRootKey().getAs(CommonTypes.LIST_OF_OBJECT);
Key<String> index0 = IndexKey.forKeyAndIndex(values, 0);
index0.setValue("newValue2");
}
}
However, not all features that Yaml 1.2 supports were tested.


PostgreSQL / PostGIS - Advanced Driver Information
The information collected in that page deal with advanced topics, not found in the OGR PostgreSQL driver Information page.
Multiple geometry columns
The PostgreSQL driver supports accessing tables with multiple PostGIS geometry columns.
OGR supports reading, updating, creating tables with multiple PostGIS geometry columns (following RFC 41 : Support for multiple geometry fields in OGR) For such a table, a single OGR layer will be reported with as many geometry fields as there are geometry columns in the table.
For backward compatibility, it is also possible to query a layer with GetLayerByName() with a name formatted like 'foo(bar)' where 'foo' is a table and 'bar' a geometry column.
Layers
Even when PostGIS is enabled, if the user
defines the environment variable PG_LIST_ALL_TABLES=YES
(and does not specify tables=), all regular user tables and named views
will be treated as layers. However, tables with multiple geometry column
will only be reported once in that mode. So this variable is mainly
useful when PostGIS is enabled to find out tables with no spatial data,
or views without an entry in geometry_columns table.
In any case, all user tables can be queried explicitly with GetLayerByName()
Regular (non-spatial) tables can be accessed, and will return features with attributes, but not geometry. If the table has a "wkb_geometry" field, it will be treated as a spatial table. The type of the field is inspected to determine how to read it. It can be a PostGIS geometry field, which is assumed to come back in OGC WKT, or type BYTEA or OID in which case it is used as a source of OGC WKB geometry.
Tables inherited from spatial tables are supported.
If there is an "ogc_fid" field, it will be used to set the feature id of the features, and not treated as a regular field.
The layer name may be of the form "schema.table". The schema must exist, and the user needs to have write permissions for the target and the public schema.
If the user defines the environment variable
PG_SKIP_VIEWS=YES
(and does not specify tables=), only the regular user tables will be treated as layers. The default action is to include the views. This variable is particularly useful when you want to copy the data into another format while avoiding the redundant data from the views.
Named views
When PostGIS is enabled for the accessed database, named views are supported, provided that there is an entry in the geometry_columns tables. But, note that the AddGeometryColumn() SQL function doesn't accept adding an entry for a view (only for regular tables). So, that must usually be done by hand with a SQL statement like :
"INSERT INTO geometry_columns VALUES ( '', 'public', 'name_of_my_view', 'name_of_geometry_column', 2, 4326, 'POINT');"
It is also possible to use named views without inserting a row in the geometry_columns table. For that, you need to explicitly specify the name of the view in the "tables=" option of the connection string. See above. The drawback is that OGR will not be able to report a valid SRS and figure out the right geometry type.
Retrieving FID of newly inserted feature
The FID of a feature (i.e. usually the value of the OGC_FID column for the feature) inserted into a table with CreateFeature(), in non-copy mode, will be retrieved from the database and can be obtained with GetFID(). One side-effect of this new behavior is that you must be careful if you re-use the same feature object in a loop that makes insertions. After the first iteration, the FID will be set to a non-null value, so at the second iteration, CreateFeature() will try to insert the new feature with the FID of the previous feature, which will fail as you cannot insert 2 features with same FID. So in that case you must explicitly reset the FID before calling CreateFeature(), or use a fresh feature object.
Snippet example in Python :
feat = ogr.Feature(lyr.GetLayerDefn())
for i in range(100):
feat.SetFID(-1) # Reset FID to null value
lyr.CreateFeature(feat)
print('The feature has been assigned FID %d' % feat.GetFID())
or :
for i in range(100):
feat = ogr.Feature(lyr.GetLayerDefn())
lyr.CreateFeature(feat)
print('The feature has been assigned FID %d' % feat.GetFID())
Old GDAL behavior can be obtained by setting the configuration
option OGR_PG_RETRIEVE_FID
to FALSE.
Issues with transactions
Efficient sequential reading in PostgreSQL requires to be done within a transaction (technically this is a CURSOR WITHOUT HOLD). So the PG driver will implicitly open such a transaction if none is currently opened as soon as a feature is retrieved. This transaction will be released if ResetReading() is called (provided that no other layer is still being read).
If within such an implicit transaction, an explicit dataset level StartTransaction() is issued, the PG driver will use a SAVEPOINT to emulate properly the transaction behavior while making the active cursor on the read layer still opened.
If an explicit transaction is opened with dataset level StartTransaction() before reading a layer, this transaction will be used for the cursor that iterates over the layer. When explicitly committing or rolling back the transaction, the cursor will become invalid, and ResetReading() should be issued again to restart reading from the beginning.
As calling SetAttributeFilter() or SetSpatialFilter() implies an implicit ResetReading(), they have the same effect as ResetReading(). That is to say, while an implicit transaction is in progress, the transaction will be committed (if no other layer is being read), and a new one will be started again at the next GetNextFeature() call. On the contrary, if they are called within an explicit transaction, the transaction is maintained.
With the above rules, the below examples show the SQL instructions that are run when using the OGR API in different scenarios.
lyr1->GetNextFeature() BEGIN (implicit)
DECLARE cur1 CURSOR FOR SELECT * FROM lyr1
FETCH 1 IN cur1
lyr1->SetAttributeFilter('xxx')
--> lyr1->ResetReading() CLOSE cur1
COMMIT (implicit)
lyr1->GetNextFeature() BEGIN (implicit)
DECLARE cur1 CURSOR FOR SELECT * FROM lyr1 WHERE xxx
FETCH 1 IN cur1
lyr2->GetNextFeature() DECLARE cur2 CURSOR FOR SELECT * FROM lyr2
FETCH 1 IN cur2
lyr1->GetNextFeature() FETCH 1 IN cur1
lyr2->GetNextFeature() FETCH 1 IN cur2
lyr1->CreateFeature(f) INSERT INTO cur1 ...
lyr1->SetAttributeFilter('xxx')
--> lyr1->ResetReading() CLOSE cur1
COMMIT (implicit)
lyr1->GetNextFeature() DECLARE cur1 CURSOR FOR SELECT * FROM lyr1 WHERE xxx
FETCH 1 IN cur1
lyr1->ResetReading() CLOSE cur1
lyr2->ResetReading() CLOSE cur2
COMMIT (implicit)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ds->StartTransaction() BEGIN
lyr1->GetNextFeature() DECLARE cur1 CURSOR FOR SELECT * FROM lyr1
FETCH 1 IN cur1
lyr2->GetNextFeature() DECLARE cur2 CURSOR FOR SELECT * FROM lyr2
FETCH 1 IN cur2
lyr1->CreateFeature(f) INSERT INTO cur1 ...
lyr1->SetAttributeFilter('xxx')
--> lyr1->ResetReading() CLOSE cur1
COMMIT (implicit)
lyr1->GetNextFeature() DECLARE cur1 CURSOR FOR SELECT * FROM lyr1 WHERE xxx
FETCH 1 IN cur1
lyr1->ResetReading() CLOSE cur1
lyr2->ResetReading() CLOSE cur2
ds->CommitTransaction() COMMIT
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ds->StartTransaction() BEGIN
lyr1->GetNextFeature() DECLARE cur1 CURSOR FOR SELECT * FROM lyr1
FETCH 1 IN cur1
lyr1->CreateFeature(f) INSERT INTO cur1 ...
ds->CommitTransaction() CLOSE cur1 (implicit)
COMMIT
lyr1->GetNextFeature() FETCH 1 IN cur1 ==> Error since the cursor was closed with the commit. Explicit ResetReading() required before
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
lyr1->GetNextFeature() BEGIN (implicit)
DECLARE cur1 CURSOR FOR SELECT * FROM lyr1
FETCH 1 IN cur1
ds->StartTransaction() SAVEPOINT savepoint
lyr1->CreateFeature(f) INSERT INTO cur1 ...
ds->CommitTransaction() RELEASE SAVEPOINT savepoint
lyr1->ResetReading() CLOSE cur1
COMMIT (implicit)
Note: in reality, the PG drivers fetches 500 features at once. The FETCH 1 is for clarity of the explanation.
Advanced Examples
This example shows using ogrinfo to list only the layers specified by the tables= options.
ogrinfo -ro PG:'dbname=warmerda tables=table1,table2'
This example shows using ogrinfo to query a table 'foo' with multiple geometry columns ('geom1' and 'geom2').
ogrinfo -ro -al PG:dbname=warmerda 'foo(geom2)'
This example show how to list only the layers inside the schema apt200810 and apt200812. The layer names will be prefixed by the name of the schema they belong to.
ogrinfo -ro PG:'dbname=warmerda schemas=apt200810,apt200812'
This example shows using ogrinfo to list only the layers inside the schema named apt200810. Note that the layer names will not be prefixed by apt200810 as only one schema is listed.
ogrinfo -ro PG:'dbname=warmerda schemas=apt200810'
This example shows how to convert a set of shapefiles inside the apt200810 directory into an existing Postgres schema apt200810. In that example, we could have use the schemas= option instead.
ogr2ogr -f PostgreSQL "PG:dbname=warmerda active_schema=apt200810" apt200810
This example shows how to convert all the tables inside the schema apt200810 as a set of shapefiles inside the apt200810 directory. Note that the layer names will not be prefixed by apt200810 as only one schema is listed
ogr2ogr apt200810 PG:'dbname=warmerda schemas=apt200810'
This example shows how to overwrite an existing table in an existing schema. Note the use of -nln to specify the qualified layer name.
ogr2ogr -overwrite -f PostgreSQL "PG:dbname=warmerda" mytable.shp mytable -nln myschema.mytable
Note that using -lco SCHEMA=mytable instead of -nln would not have worked in that case (see #2821 for more details).
If you need to overwrite many tables located in a schema at once, the -nln option is not the more appropriate, so it might be more convenient to use the active_schema connection string. The following example will overwrite, if necessary, all the PostgreSQL tables corresponding to a set of shapefiles inside the apt200810 directory :
ogr2ogr -overwrite -f PostgreSQL "PG:dbname=warmerda active_schema=apt200810" apt200810


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--- layout: page permalink: /research images: jets: feature: img/jets.png mock_jets: feature: img/mock_jets.png feature: img/irina_diagram_sim.png centaurus: feature: img/centaurus.png credit: "Left: Brummel-Smith, Right: Sanders et al. 2016" perseus: feature: img/perseus.png credit: "Left: Brummel-Smith, Right: NASA/CXC/IoA/A.Fabian et al." videos: zoomRotate: feature: https://www.dropbox.com/s/jxzf3m87i4ncwfl/zoom_rot_webOptimized.mp4?raw=1 credit: Brummel-Smith & Wise vol_render: feature: https://www.dropbox.com/s/ht7zvdl4kf3ibxz/B02_vol_render_webOptimized.mp4?raw=1 ---


Discuss a time you had an emotional conflict with someone. What was it about? What happened?
 I made a decision to stop school at my college and my mother was not happy. However, I wanted to leave because I felt that college was too slow paced in the "Information Age" and my mother looked at it from another prospective.
What was the source of conflict?
I had the best intentions when making my decision to go through and leave. I believe the culprits were poor communication, different values, and differing interests.
How did you handle the conflict?
Increased communication and presented a well crafted explanation that explained my thoughts, feelings, motives, and emotions towards the subject.
I shed light on my value in order to give my mother a greater understanding.
Did you actions make the conflict better or worse?
Handling the conflict the way I did decreased the conflict.
If you could go back, what would you do differently, if anything?
I would have explained my thoughts and feelings before hand to avoid the conflict all together.
What did you learn from this experience?
That you should always stick to what you believe in and take everything with a grain of salt.


The aim of this website is to increase ticket sales and donations for the orchestra.
The websites success should be evaluated on an increase in ticket numbers and donations. Based on these numbers the client will be able to reflect on data to make decisions on future shows, themes and reflect on target audience data for marketing purposes.
The website users should be able to easily find relevant information on the homepage. This can be achieved by placing the focus on upcoming shows using flyers with dates and pricing information clearly displayed alongside the flyer. The home site will also require a sign up and contact function that will allow musicians to join the orchestra or community members to make donations.
there are three targets in our mission:
1. active community members, philanthropists and local business people that may wish to make donations to the orchestra.
2. 50+ years old patrons and parents of performers are our target market for ticket purchases.
3. new community members or musicians that are looking to get in contact with the orchestra.
The focus of the website being on parents of musicians and the target audience (estimated age group) 50+ y.o who are genuinely interested in the orchestra and want learn more.
From a design perspective the client has requested “elegant spunk”. We believe there should be a balance between classical themes and use of colours associated with the Great Barrier Reef.
The orchestra has adopted a blue/green scarf in their outfit to express the colours of the reef and their pride in our local area. We have planned to sample the colour from their scarf to use as a main colour design choice throughout the website.
Other colours we have considered to inspire a vision to the user were the colours on stage: curtains, stage boards, instrument colours such as a maple or spruce wood colour from a cello, or a ebony marble colour of wind instruments or the ivory keys of a piano.
Other design ideas we thought would be appealing was inspiration from old marquees and sign boards.
the website will be designed for ease of use with the focus of the pages being on ticket information for upcoming shows and information for purchasing tickets or making donations. The text will be larger with a clear contrast for users that may struggle viewing the page on a smaller screen, it will also be scaleable to devices such as ipads and smart phones.
Antonio-Hernandez/CP1406-A2


Contract covering object managers for a Doctrine persistence layer ManagerRegistry class to implement.
| link |
www.doctrine-project.org |
|---|---|
| since | 2.2 |
| author |
Fabien Potencier<EMAIL_ADDRESS>|
| author |
Benjamin Eberlei<EMAIL_ADDRESS>|
| author |
Lukas Kahwe Smith<EMAIL_ADDRESS>|
| package |
Default |
getAliasNamespace(string $alias) : string
This method looks for the alias in all registered object managers.
string
The alias.
string
The full namespace.
getConnection(string $name = null) : object
string
The connection name (null for the default one).
object
getConnectionNames() : array
array
An array of connection names.
getConnections() : array
array
An array of Connection instances.
getDefaultConnectionName() : string
string
The default connection name.
getDefaultManagerName() : string
string
The default object manager name.
getManager(string $name = null) : \Doctrine\Common\Persistence\ObjectManager
string
The object manager name (null for the default one).
\Doctrine\Common\Persistence\ObjectManager
getManagerForClass(string $class) : \Doctrine\Common\Persistence\ObjectManager|null
string
A persistent object class name.
\Doctrine\Common\Persistence\ObjectManager|null
getManagerNames() : array
array
An array of connection names.
getManagers() : array<mixed,\Doctrine\Common\Persistence\ObjectManager>
getRepository(string $persistentObject, string $persistentManagerName = null) : \Doctrine\Common\Persistence\ObjectRepository
string
The name of the persistent object.
string
The object manager name (null for the default one).
\Doctrine\Common\Persistence\ObjectRepository
resetManager(string|null $name = null) : \Doctrine\Common\Persistence\ObjectManager
This method is useful when an object manager has been closed because of a rollbacked transaction AND when you think that it makes sense to get a new one to replace the closed one.
Be warned that you will get a brand new object manager as the existing one is not useable anymore. This means that any other object with a dependency on this object manager will hold an obsolete reference. You can inject the registry instead to avoid this problem.
string|null
The object manager name (null for the default one).
\Doctrine\Common\Persistence\ObjectManager


Kobi Halperin to Be Honored at The Samuel Waxman Cancer Research Foundation Gala
Valery Joseph, founder and owner of Valery Joseph Salons, and Marc D. Taub, president and ceo of Taub Family Cos. will also be honored.
by Lisa LockwoodFashion designer Kobi Halperin will be among those honored Nov. 21 at The Samuel Waxman Cancer Research Foundation’s 22nd anniversary of the Collaborating for a Cure Benefit dinner and auction.
The event takes place at Cipriani Wall Street and supports the SWCRF “Invest in Research” efforts to raise funds that support highly collaborative research projects focused on eradicating cancer.
In addition to honoring Halperin, chief creative officer of Kobi Halperin, Valery Joseph, founder and owner of Valery Joseph Salons, and Marc D. Taub, president and chief executive officer of Taub Family Cos., will be honored.
The gala will feature a musical performance by Lukas Nelson and Promise of the Real, who just released their fifth studio album.
Halperin decided to accept this year’s Fashion Cares honor because his mother and aunt have been affected by cancer. He has been a dedicated supporter of the foundation.
Halperin launched his own eponymous ready-to-wear line in 2015, known for its artisan details and modern femininity. He became a member of the Council of Fashion Designers in 2016. Steven Kolb, chief executive officer of the CFDA, will present Halperin with his award.
The sold-out gala, which will have 950 people in attendance, has already raised more than $2.5 million with donations still coming in.


Online participation in laboratory exercises
Individual support from trainers
Opportunity for scholarship for free education
Interactive platform access and real-time training
Learning resources and homework check
Examinations and assessment
Online participation in laboratory exercises
Individual support from trainers
Opportunity for scholarship for free education
Interactive platform access and real-time training
Learning resources and homework check
Examinations and assessment


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Please select your answers by ticking off the checkboxes below.


Posted on: Sunday, October 13, 2019
Reading time: 5 minutes and 7 seconds.
One of the most common query when working with maps is the nearest neighbour query. This blog post will use Voronoi Diagrams to explain more regarding the nearest neighbour query.
Below is an example of a Voronoi diagram generated using d3.js. One of the good use case of a voronoi diagram in real life applications would be where would be finding a place to build emergency services. This place should have the most number of neighbouring regions. For example, if you click
on the region in the voronoi diagram below, you can see how many regions in which it would consider this region to be its neighbour. The diagram is randomly generated based on a number of points and thus every refresh of this page will show a different voronoi diagram.
Fig 1. Voronoi Diagram generated with 30 random points
The codes to create this diagram are as follows :-
const createVoronoi = () => {
const width = 600;
const height = 600;
const vertices = d3.range(30).map(function(d) {
return [Math.random() * width, Math.random() * height];
});
const delaunay = d3.Delaunay.from(vertices);
const voronoi = delaunay.voronoi([0, 0, width, height]);
let svg = d3
.select("#canvas")
.append("svg")
.attr("viewBox", `0 0 600 600`);
const mesh = svg
.append("path")
.attr("fill", "none")
.attr("stroke", "#ccc")
.attr("stroke-width", 1)
.attr("d", voronoi.render());
const bounds = svg
.append("path")
.attr("fill", "none")
.attr("stroke", "#ccc")
.attr("stroke-width", 1)
.attr("d", voronoi.renderBounds());
const points = svg
.append("path")
.attr("fill", "black")
.attr("stroke", "#ccc")
.attr("stroke-width", 1)
.attr("d", delaunay.renderPoints());
};
I will now re-use my data set of point from an earlier blog entry and I will generate the voronoi diagram. Basically, I would use a query point as well to find out the nearest neighbour and the surrounding neighbours. The figure below shows that the d3-delaunay provides a simple functions that allows you to find the point in which is the closest to the query point. This is done by using delaunay.find()
. So if you are inside the blue region, your closest point would be the point inside the blue region.
It’s surrounding neighbours could then be easily obtained once you have this point by using delaunay.neighbor()
and passing the result of the first find function. So, the regions which are in teal would be the neighbours of the region in blue. All the other regions would be coloured in green. This simple data structure would allow you to easily obtain the nearest neighbour. However, of course, there is also the importance of the build time, insertion time and removal time as well.
Fig 2. Voronoi Diagram for a NN query.
const queryExample = () => {
let points = [
[40, 74],
[34, 118],
[41, 87],
[44, 93],
[39, 104],
[32, 96],
[47, 122],
[42, 71]
];
// Function to transform the points so that it would work on the grid
const transform = point => {
return [(point[0] / 90) * 500, (point[1] / 180) * 500];
};
let transformed = [];
points.forEach(element => {
transformed.push(transform(element));
});
const delaunay = d3.Delaunay.from(points);
const voronoi = delaunay.voronoi([0, 0, 500, 500]);
// Call the draw Voronoi function.
drawVoronoi("#exampleQuery", transformed);
};
const drawVoronoi = (id, vertices, color) => {
const width = 500,
height = 500;
const delaunay = d3.Delaunay.from(vertices);
const voronoi = delaunay.voronoi([0, 0, width, height]);
let svg = d3
.select(id)
.append("svg")
.attr("viewBox", `0 0 500 500`);
const mesh = svg
.append("path")
.attr("fill", "none")
.attr("stroke", "#ccc")
.attr("stroke-width", 1)
.attr("d", voronoi.render());
const bounds = svg
.append("path")
.attr("fill", "none")
.attr("stroke", "#ccc")
.attr("stroke-width", 1)
.attr("d", voronoi.renderBounds());
// Find the closest point to this coordinate.
const ans = delaunay.find(40, 73);
const neighbours = delaunay.neighbors(ans);
for (const iterator of neighbours) {
renderCell(svg, voronoi, iterator, d3.schemeTableau10[3]);
}
renderCell(svg, voronoi, ans, d3.schemeTableau10[0]);
const points = svg
.append("path")
.attr("fill", "black")
.attr("stroke", "#ccc")
.attr("stroke-width", 1)
.attr("d", delaunay.renderPoints());
};
const renderCell = (svg, voronoi, index, color) => {
svg
.append("path")
.attr("fill", color)
.attr("stroke", "#ccc")
.attr("stroke-width", 1)
.attr("d", voronoi.renderCell(index));
};


?6
7
8
9
10
TheNewYork
copyright
reserved
Botanical
Garden
The
Ne»
York
Botanical
Carden
INSTITUTE
OF
ECONOMIC
BOTANY
Plants
of
Coisonvealth
of
Doiinica
FABACEAE
Andira
sapindoides
(A.P.
Candolle)
Bentham
WEST
INDIES,
Dominica.
St.
Patrick.
On
riverbank
along
La
Ronde
River,
La
Plaine.
15°19'N,
61°15yW.
23m.
Secondary
rainforest.
Tree
25m
x
80cm
dbh;
wood
yellow;
bark
scaly.
n.v.:
L'angin;
L’anglin
[Creole-Patois].
Bastard
Maboqanv
{English],
NCI
Sample
codes:
OCJX-0496-F
(LF);
IS)
497-G
(Tl);
498-1
(BR);
499-1
(BE);
500-J
(!
NEW
YORK
BOTANICAL
GARDEN
198
00
Eirik
Stijfhoorn
852
June
10,
1992
with
G.A.
Eidesen,
R.
Williams
and
H.T.
Beck
Fieldwork
supported
by
the
National
Cancer
Institute
00191198
Legend -
Level of confidence that token is an accurately-transcribed word
extremely low
very low
low
undetermined
medium
high
very high


Null value area ignored in calculation: 184.859622 Plan area used in calculation: 204.079939 Surface area calculation(low, high, avg): 35.125698 39.427317 37.276508 Current region plan area: 204.262693 Estimated region Surface Area: 37.309889


{{ define "main" }} {{ if $.Params.showdata }}
33 flights found
Corporate Fare
Retail Fare
Spice Jet
SJ-643
Goa (GOI)
Wed, 07 Dec, 04:30 Dabolim
03h 35m | Non Stop|Refundable
Economy Class | Booking Class: H|Meals
Mumbai (BOM)
Wed, 07 Dec, 10:30
Chatrapati Shivaji - T-1
| Base Fare | Rs 4000 |
| Taxes | Rs 995 |
| Service Charges | Rs 0 |
| Rounding Off | Rs 0 |
| Transaction Fees | Rs 0 |
| You Pay | Rs 4995 |
No Penalties on Cancellation for Corporate Fares
No Penalties on Rescheduling for Corporate Fares
| Hand Baggage | 7 kg |
| Check In Baggage | 15 kg |
Air India
SJ-643
Goa (GOI)
Wed, 07 Dec, 04:30 Dabolim
03h 35m | Non Stop|Refundable
Economy Class | Booking Class: H|Meals
Mumbai (BOM)
Wed, 07 Dec, 10:30
Chatrapati Shivaji - T-1
| Base Fare | Rs 4000 |
| Taxes | Rs 995 |
| Service Charges | Rs 0 |
| Rounding Off | Rs 0 |
| Transaction Fees | Rs 0 |
| You Pay | Rs 4995 |
No Penalties on Cancellation for Corporate Fares
No Penalties on Rescheduling for Corporate Fares
| Hand Baggage | 7 kg |
| Check In Baggage | 15 kg |
Spice Jet
SG454
04:30
GOI - BOM
10:30
1h 15m
Non Stop
Spice Jet
SG454
04:30
GOI - BOM
10:30
1h 15m
Non Stop
Spice Jet
SG454
04:30
GOI - BOM
10:30
1h 15m
Non Stop
Spice Jet
SG454
04:30
GOI - BOM
10:30
1h 15m
Non Stop
Spice Jet
SG454
04:30
GOI - BOM
10:30
1h 15m
Non Stop
Spice Jet
SG454
04:30
GOI - BOM
10:30
1h 15m
Non Stop
Spice Jet
SG454
04:30
GOI - BOM
10:30
1h 15m
Non Stop
Spice Jet
SG454
04:30
GOI - BOM
10:30
1h 15m
Non Stop


Market Analysis
What Is VeChain (VET) and Why Did it Pump 65% This Month?
by Michaël van de PoppeWhile the majority of crypto traders are discussing a variety of bullish and bearish perspectives on Bitcoin (BTC), many altcoins are jumping around and making significant moves. One of them is VeChain (VET), a blockchain-based platform focused on enhancing supply chain management processes. The project is primarily focused on providing solutions that allow consumers and retailers to check the authenticity and quality of products they have purchased.
Now with that said, there are heaps of altcoins out there that all aspire to solve a problem through the use of distributed ledger technology so what’s all the fuss about VeChain? Well, the altcoin has surged more than 100% in a matter of weeks and for crypto traders, this is very notable.
VeChain breaks 200-Day exponential moving average for the first time since summer 2018
For the first time since listing, VeChain managed to break the 200-day exponential moving average (EMA), as can be seen in the following chart.
VET BTC 1-day chart. Source: TradingView
Some other notably entertaining keynotes can be found on VeChain’s daily chart. It’s not only moving above the 200-DMA and EMA, but it also broke a 14-month long downtrend. Similar to the breakout of the downtrend, a falling wedge pattern with bullish divergences marked the bottom during August and September of 2019.
Remarkably, bullish divergences and falling wedge patterns are one of the most reliable bottom indicators when trading, and once again, they managed to be strict in the call. Given that this occurred in the daily timeframe, it often takes a while before the divergences become ‘active.’
After confirmation, a slightly higher low was constructed before the breakout of the longterm downtrend. Notably, one can be seen that there was a massive increase in volume after the break of the downtrend, which is a strong signal.
VET BTC 6-hour chart. Source: TradingView
The smaller timeframes give a clear view of VeChain’s price action. A regular breakout of the downtrend, including a retest at 0.00000041 Satoshis (sats) before the break upwards to 0.00000062 (sats), the next target. Only a slight retest and consolidation was needed to push the price further upwards. This breakout of 0.00000060 (sats) leads to a new increase in price, which is currently aiming for the range high at 0.00000080 to 0.00000082 (sats).
Meanwhile, the relative strength index (RSI) is showing its highest level since listing on several timeframes. This could indicate that some period of cool-off is ready to occur for the altcoin.
Similar price action is playing out across the altcoin market
Other altcoins across the field show similarities in the strengths of their price action. For example, is ZRX (0x), was one of the first altcoins to break out of a longterm downtrend.
ZRX BTC 1-day chart. Source: TradingView
As can be seen in the chart, a breakout occurred with high volume after a similar falling wedge with bullish divergence was constructed. Alongside the breakout, ZRX moved towards June 2019 levels, which led to a 170% increase since the bottom.
Furthermore, other altcoins are also beginning to take steps towards their longterm downtrend lines and some are currently trying to break out of it. Another good example is Ontology (ONT), which is now moving out of an 18-month long downtrend.
ONT BTC 1-day chart. Source: Tradingview
Ontology broke out of a 5-month downtrend earlier in November. This push shifted the price towards the primary downtrend (18-months old) which has currently broken upward. If it is going to show price action similar to ZRX and move back towards the June 2019 price levels, a continued move towards 0.0001500 - 0.0001900 (sats) is not off of the books.
VeChain against USDT ready for a retracement?
VET USDT 1-day chart. Source: TradingView
The USDT chart is showing some of the same signals as the Bitcoin chart. A heavy move upwards from the local bottom at $0.003 (which was also a falling wedge structure), slight consolidation, and eventual retracement of the range high of $0.006. This retracement leads to a strong bounce of the $0.0051 level which was previously a resistance that flipped support a few days ago.
The price of VET in USDT is currently hovering around resistance with the RSI in overbought areas. The price needs to continue to produce green candles to prevent it from creating bearish divergences, a usual top signal.
Bullish scenario
Given the movements of VeChain, a bullish scenario is more likely to occur than a bearish scenario, and there are several scenarios in place for the asset.
The first scenario would be a straight copy of the movements before the break of 0.00000060 to 0.00000062 (sats) a few days ago. In that scenario, the price will continue moving towards the range high, consolidate a little bit and continue its way towards the next level at 0.00000100 (sats).
VET BTC daily chart, bullish scenario. Source: TradingView
The second scenario first requires a drop first, which is a short term bearish outlook.
In that regard, we still have to take note of the height of the RSI on several timeframes. That could indicate a retracement and retest of the range lows at 0.00000060 - 0.00000062 (sats) before the price is ready to move to the range high at 0.000080 - 0.00000082 (sats). Traders might prefer to look for a long entry in that zone or play the breakout if VeChain flips the 0.00000080 (sats) zone as support.
VET BTC daily chart, 2nd bullish scenario. Source: TradingView
Bearish scenario
A bearish view could occur if the VET/USDT pair is unable to continue showing strength, which would confirm the bearish divergences on higher timeframes. In that regard, traders might look for a retest of the 0.00000060 (sats) zone and a possible drop below that area.
VET BTC daily chart, bearish scenario. Source: TradingView
Given the strength of the altcoin and the volume behind the move, it’s less likely to occur. However, if VeChain retraces back to the range low and doesn’t find enough strength to bounce with volume, a possible retracement towards 0.00000050 (sats) is a real possibility.
There are several reasons for a possible retracement, one could be Bitcoin making volatile movements which would cause the market to become chaotic all over again.
At this point, powerful movements and more likely to continue to the range highs.
The views and opinions expressed here are solely those of the author and do not necessarily reflect the views of Cointelegraph. Every investment and trading move involves risk. You should conduct your own research when making a decision.


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