Generic Webcam Java Utility
The goal of this project is to provide really simple webcam API allowing you to use your build-in or external (connected via USB) webcams or IP / network cameras directly from the Java code. Project provides very basic webcam interface and a set of additional drivers which can be used to replace default, build-in drivers to extend and/or replace default functionality.
Continous Integration build status (Travis CI):
If you have spare time, knowledge or even some small money amount to spent, you can help developing awesome Webcam Capture API and make it even better! Several kinds of contributions are very welcome:
Webcam Capture is avilable in Maven Central, so if you can add its dependency to your project if you are using one of the dependency manager:
<dependency> <groupId>com.github.sarxos</groupId> <artifactId>webcam-capture</artifactId> <version>0.3.9</version> </dependency>
Download ZIP file containing complete API reference, required JARs, sources and examples (link is visible at the right top corner of this page), uncompress, and add webcam-capture-[version].jar and all JARs under libs directory to your project's classpath:
The driver is something that wraps the capturing framework and make it available for the Webcam Capture API. Driver can be replaces and currently Webcam Capture supports the following ones:
The IP camera driver allows Webcam Capture API to handle pictures from remote IP cameras supporting JPEG and/or MJPEG (Motion JPEG) compression. It contains generic IP camera device interface, but can be customized to support more sophiscicated functions like tilt, angle, etc. For more information about already supported models, on info of how to extend the default IP camera device, to find more detailed examples, use-cases, etc, please follow to the dedicated Github site available here.
This driver is available in Maven Central.
This driver utilizes JMF capabilities to access webcam and can be used as a replacement for default, build-in driver. Its advantage is the fact it's pretty fast, but unfortunately, from the other hand, it requires JMF to be installed on your PC. If you do not want to use JMF (due to e.g. licensing issues), you can choose FMJ, which is a freeware replacement for JMF.
NOTE! Please be aware of the fact that both JMF (from Oracle) and FMJ (from Larson Technologies Inc.) are not being maintained any more!
This driver is available in Maven Central.
This driver utilizes the awesome OpenIMAJ framework capabilities to access webcam devices and can be used as a replacement for default build-in driver (it's actually pretty the same). Its advantage is the fact it's pretty fast, supports multiple platforms, but disadvantage is the size of required 3rd party JARs (around ~20MB). Default build-in driver uses OpenIMAJ natives to support video grabbing, but id does not require all those additional JARs.
This driver is NOT available in Maven Central, but it can be used in Maven build. In such a case one have to add those repositories to project's POM:
<repositories> <repository> <id>OpenIMAJ maven repository</id> <url>http://maven.openimaj.org/</url> </repository> <repository> <id>Octopussy thirdparty maven repository</id> <url>http://octopussy.ecs.soton.ac.uk/m2/thirdparty/</url> </repository> <repository> <id>OpenIMAJ Snapshots maven repository</id> <url>http://octopussy.ecs.soton.ac.uk/m2/snapshots/</url> </repository> </repositories>
This driver utilizes LTI-CIVIL project capabilities to access PC webcam and can be used as a replacement for default build-in driver. LTI-CIVIL supports Windows, Linux and MAC OS platforms. For Mac OS it utilizes QTJ framework capabilities. For other ones it uses precompiled natives.
NOTE! Be aware of the fact that LTI-CIVIL framework not being maintained any more by its owner, so all the issues found within this framework will NOT be fixed!
This driver is available in Maven Central.
WARNING: EXPERIMENTAL STUFF!
This driver utilizes OpenCV Java bindings to access webcam devices. It can be used as a replacement for default build-in driver. Its advantage is quite stable interface, but unfortunately it requires quite huge (around ~100MB) pre-installed OpenCV bundle.
This driver is NOT available in Maven Central, but it can be used in Maven build. In such a case user has to add those repositories to project's POM:
<repositories> <repository> <id>javacv</id> <url>http://maven2.javacv.googlecode.com/git</url> </repository> <repository> <id>kevoree</id> <url>http://maven.kevoree.org/release</url> </repository> </repositories>
This driver utilizes Caprica VLCj Java wrapper for Videolan VLC media player to access PC webcam and can be used as a replacement for default build-in driver. It requires VLC media player to be pre-installed on the system where driver will be used. More informations on how to use this driver can be found on this dedicated Github page. Its disadvantage is very poor performance.
This driver is NOT YET available in Maven Central (but it will be).
API confirmed to be perfectly running on the following systems (please report at the project page if you tested it on other system, just create new issue for that purpose):
However some problems has been detected on Raspberry Pi where API is not able to load OpenIMAJGrabber.so. To workaround this problem one must to extract webcam-capture JAR, go to the directory com/github/sarxos/webcam/ds/buildin/lib and get the file for the appropriate Linux and copy it to the path where system can Load it.
To capture single image and save it to disk:
Webcam webcam = Webcam.getDefault(); webcam.open(); BufferedImage image = webcam.getImage(); ImageIO.write(image, "PNG", new File("test.png"));
If you have more then one webcam connected to your computer:
Webcam laptop = Webcam.getWebcams().get(0); Webcam kitchen = Webcam.getWebcams().get(1); Webcam roof = Webcam.getWebcams().get(2);
To detect motion with your webcam - loop solution:
WebcamMotionDetector detector = new WebcamMotionDetector(Webcam.getDefault()); detector.setInterval(100); // one check per 100 ms (10 FPS) detector.start(); while (true) { if (detector.isMotion()) { System.out.println("Detected motion I, alarm turn on you have"); } Thread.sleep(500); }
To detect motion with webcam - listener solution:
public class DetectMotionExample implements WebcamMotionListener { WebcamMotionDetector detector = new WebcamMotionDetector(Webcam.getDefault()); public DetectMotionExample() { detector.setInterval(100); // one check per 100 ms (10 FPS) detector.addMotionListener(this); detector.start(); } @Override public void motionDetected(WebcamMotionEvent wme) { System.out.println("Detected motion I, alarm turn on you have"); } public static void main(String[] args) throws IOException { new DetectMotionExample(); System.in.read(); // keeps your program open } }
You can display image from webcam in Swing JPanel. There is a special component designed for this.
JFrame window = new JFrame("Test Webcam Panel"); window.add(new WebcamPanel(Webcam.getDefault())); window.pack(); window.setVisible(true); window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
To use Webcam Capture together with IP or network camera you have to add IP / network camera driver to your Webcam Capture project.
IpCamDevice ipcam = new B7210("B7210", "<IP_ADDRESS>"); ipcam.setAuth(new IpCamAuth("demo", "demo")); ipcam.setSize(B7210.SIZE_QVGA); IpCamDriver driver = new IpCamDriver(); driver.register(ipcam); Webcam.setDriver(driver); WebcamPanel panel = new WebcamPanel(Webcam.getDefault()); panel.setFPS(0.5); // 1 frame per 2 seconds JFrame f = new JFrame("Night Tree Somewhere"); f.add(panel); f.pack(); f.setVisible(true); f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
More IP / network camera examples are available in Github project's page.
In the development phase you will probably kill running application many time (by stop button in Eclipse, Netbeans or other IDE), or by calling kill -TERM <pid> command from CLI. You have to be aware that killing running application when Webcam Capture is already running can have unwanted side-effects, such as:
All those issues arose from the same root cause - memory has not been properly deallocated in the native layer. That's because you killed application instead of closing it gracefully.
However, there is a solution for this problem. For such purpose special TERM signal handler has been implemented, and you can enable it before you actually start using Webcam Capture API. This can be done by calling this code (please make sure to call it before you use any other method!):
Webcam.setTermSignalHandler(true);
IMPORTANT NOTE! This is development setting and shall not be used in production code!!! It modified the way of how JVM terminates its process, so depending on the system there can be some unknown side-effects. Also features used in this handler are undocumented and can be removed in further Java releases without prior notification.
Logging has been implemented via SLF4J API, so all you need to do is to add specific implementation and create configuration file.
This paragraph describes in short how to use Logback to enable logs from Webcam Capture API.
Go to Logback home page and download ZIP files containing all required JARs. Extract ZIP and add those files into your classpath:
NOTE! The [version] is current Logback release signature (e.g. 1.0.9).
Create logback.xml file and put this content inside:
<configuration scan="true" scanPeriod="30 seconds"> <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender"> <layout class="ch.qos.logback.classic.PatternLayout"> <Pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</Pattern> </layout> </appender> <root level="debug"> <appender-ref ref="STDOUT" /> </root> </configuration>
When you include this file in your classpath, it will be discovered automatically, but you can also load it manually by calling:
WebcamLogConfigurator.configure("path/to/logback.xml");
There are more examples available in src/example, don't forget to check them - please follow to the Github Project's Page where Webcam Capture source code is stored! Here are the examples links:
Copyright (C) 2012 - 2013 Bartosz Firyn
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
 IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.


Ghana to introduce an e-Visa system next year – Bawumia
Vice President, Dr. Mahamudu Bawumia, has disclosed that Ghana will soon introduce a new electronic-Visa system to facilitate the process of getting travel authorizations.
He said the move forms part of efforts to increase the number of tourists as well as “businessmen” who plan to visit a particular country.
Speaking at the first Regional Congress on Women Empowerment in the Tourism sector, the Vice president said travelers will only need to complete an online application form with details, which makes the visa acquirement process, smoother and efficient.
“We want to make it easy for tourists to visit. Ghana will launch an e-Visa next year so it will be easy to travel. You won’t have to go to an embassy. Just apply online, get your visa and travel. We will launch that next year”. He said.
Notwithstanding, Mr. Bawumia took the chance to emphasize on government’s commitment towards making the country a “business-friendly” one, especially with the use of technology.
By this he meant, the government is leveraging on technology to develop a number of creative methodologies including the total interoperability of Ghana’s financial system which seeks to make payments convenient for businessmen and tourists.
“We want to benefit economically from tourism. One of the major problems we have for tourists as they go across sometimes is payment and carrying cash around. Ghana is going completely digital. We have launched mobile payments interoperability and next month we are launching a universal QR code that will take Ghana cashless overtime. So the tourist can easily spend without worrying about changing money.” the Vice president added.


@* * Copyright 2023 HM Revenue & Customs * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. *@ @(key: String, radioOptions: Seq[(String, String)], selected: Option[String])(implicit messages: Messages) @* the inputRadioGroup template in play-ui uses the wrong classes, and doesn't add an ID for the error summary to link to *@ @radioOptions.map { case (value, label) => @defining(s"${key}-${value.toLowerCase.replace(" ","_")}") { inputId =>


Choose this level if you are playing for the first time.
Select This LevelChoose this level if you already know the basics.
Select This LevelChoose this level if you want to challenge yourself.
Select This LevelChoose this level if you are completely crazy.
Select This Level


Before Change
print("Already computed")
continue
result = evaluate_model(hyperparams,
train,
test,
random_state)
output.write(json.dumps(result) + "\n")
output.flush()
After Change
random_state=random_state)
train = train.to_sequence(max_sequence_length=max_sequence_length,
min_sequence_length=min_sequence_length)
train.sequences = train.sequences[:100]
test = test.to_sequence(max_sequence_length=max_sequence_length,
min_sequence_length=min_sequence_length)
test.sequences = test.sequences[:100]
validation = validation.to_sequence(max_sequence_length=max_sequence_length,


def ask(question: String): String = {
if(question == "What's the meaning of life?") {
"42"
else
null // does not compile in Scala
}
var n = 0
def add2(x: Int): Int = {
n = n + 1
x + 2
}
// ...
val y = add2(40)
assert(n == 1)
def readIntegerFromFile(filePath: String): Int = {
// throws exceptions
val content = readFromFile(filePath)
// ...
}
"A function having a side-effect is a function which has an observable interaction with its calling
functions or the outside world besides returning a value"
Wikipedia.
// List.scala
override def drop(n: Int): List[A] = {
var these = this
var count = n
while (!these.isEmpty && count > 0) {
these = these.tail
count -= 1
}
these
}
Total Functions
Total: A function must yield a value for every possible input.
def parse(integer: String): Int = {
if(numberIsNotAString(number)) {
throw new IllegalArgumentException(/*...*/)
} else { /* parsing logic */}
}
def ask(question: String): String = {
if(question == "What's the meaning of life?") {
"42"
else
null // does not compile in Scala
}
trait Either[A, B]
case class Left[A, B](a: A) extends Either[A, B]
case class Right[A, B](b: B) extends Either[A, B]
def parse(integer: String): Either[Exception, Int]
trait Maybe[A]
case class Some[A](a: A) extends Maybe[A]
case class None[A]() extends Maybe[A]
def ask(question: String): Maybe[String]
case class Foo(first: String, second: Int)
Foo("bar", 42) match {
case Foo(x, 42) => println(s"$x == 42")
case Foo("bar", _) => println(s"bar != 42")
case _ => println("Default case")
}
Foo("bar", 74) match {
case Foo(x, 42) => println(s"$x == 42")
case Foo("bar", _) => println(s"bar != 42")
case _ => println("Default case")
}
def ask(question: String): Maybe[String] = {
if(question == "What's the meaning of life?") {
Some("42")
else
None
}
ask("What's the meaning of life?") match {
case Some(answer) =>
println(s"The answer is: $answer")
case None =>
println("I cannot answer this question.")
}
Pure Functions
Pure: A function’s only effect must be the computation of its return value
var n = 0
def add2(x: Int): Int = {
n = n + 1
x + 2
}
// ...
val y = add2(40)
assert(n == 1)
Deterministic: A function must yield the same output for the same input.
val s: String = readInput()
printOnConsole(s)
trait ConsoleIO
case class Read(process: String => ConsoleIO) extends ConsoleIO
case class Write(line: String, then: ConsoleIO) extends ConsoleIO
case object End extends ConsoleIO
val program: ConsoleIO = Read { line => Write(line, End) }
val loop: ConsoleIO = Read { line => Write(line, loop) }
def interpret(program: ConsoleIO): Unit = program match {
case Read(process) => interpret(process(readLine()))
case Write(line, next) => println(line); interpret(next)
case End => println("Done !")
}
trait ConsoleIO
case class Read(process: String => ConsoleIO) extends ConsoleIO
case class Write(line: String, then: ConsoleIO) extends ConsoleIO
case object End extends ConsoleIO
val program: ConsoleIO = Read { line => Write(line) }
interpret(program)
def interpret(program: ConsoleIO): Unit = program match {
case Read(process) => interpret(process(readLine()))
case Write(line, next) => println(line); interpret(next)
case End => println("Done !")
}
Total: A function must yield a value for every possible input.
Pure: A function only effect must be the computation of its return value
Deterministic: A function must yield the same value for the same input.
Side effects break Referential Transparency :(
Side-Effects must be explicit
Separate the 'what' from the 'how'
Order of evaluation
def f(x: Int) = x * 3
def g(y: Int) = y + 1
f(g(1))
f(g(1))
= f(1+1)
= f(2)
= 2*3
= 6
f(g(1))
= g(1)*3
= (1+1)*3
= 2*3
= 6
val xs = List(1,2,3,4,5)
def add1(x: Int): Int = /* ...*/
for(i <- 1 to xs.length) yield add1(i)
Explicit Data Dependencies
val eggs = ...
crackEggs()
beatEggs()
cookOmelette()
val eggs = ...
val crackedEggs = crackEggs(eggs)
val beatenEggs = beatEggs(crackedEggs)
val omelette = cookOmelette(beatenEggs)
Equational Reasoning
(a + b)²
= (a + b) * (a + b)
= a * (a + b) + b * (a + b)
= a² + 2ab + b²
Composition
"A highly composable system provides components that can be selected and assembled in various
combinations to satisfy specific user requirements."
Wikipedia.
// Algebraic data types
1, 2, 3...
// Operations
1 + 2 = 3
3 * 2 = 6
// Laws
0 + x = x
1 * x = x
3y + 5z * 2x + y = 5
val emptyString = ""
val nonEmptyString = "this is not empty"
emptyString + nonEmptyString == nonEmptyString
nonEmptyString + emptyString == nonEmptyString
class NonEmpty[A](a: A)
class Empty[A]
NonEmpty(42) ++ Empty[Int] == NonEmpty(42)
Empty[Int] ++ NonEmpty(42) == NonEmpty(42)
A monoid is an algebraic structure with a single associative binary operation and an identity element.
Type
Zero
Binary Operator
String
Empty String
+
Collection
Empty
++
// Left Identity :
zero |+| x = x
// Right Identity:
x |+| zero = x
// Associativity :
(x |+| y) |+| z = x |+| (y |+| z)
Functions are monoid too! (with respect of Function composition)
// Left Identity :
f(identity(x)) == f(x)
// Right Identity:
identity(f(x)) == f(x)
// Associativity :
f(g(h(x))) == f ° g(h(x)) == f(g ° h(x))
val x: Maybe[Int] = ...
def isBiggerThan42(i: Int): Boolean = i > 42
isBiggerThan42(x) // does not compile as x is not an Int
def map[A, B](m: Maybe[A], f: A => B): Maybe[B] =
m match {
case Some(a) => Some(f(a))
case None => None
}
val y: Maybe[Boolean] = map(x, isBiggerThan42)
def map[A, B](m: Maybe[A], f: A => B): Maybe[B] =
m match {
case Some(a) => Some(f(a))
case None => None
}
// Identity :
map(m, identity) == m
// Associativity :
map(m, f ° g)) == map(map(m, g), f)
Conclusion
Learn You a Haskell for Great Good! : by Miran Lipovaca
Functional Programming in Scala : by Paul Chiusano and Rúnar Bjarnason
http://degoes.net/: by John A De Goes
https://wiki.haskell.org/Typeclassopedia: by Brent Yorgey
Functional and Reactive Domain Modeling: by Debasish Ghosh
Real World Haskell: by Bryan O'Sullivan, Don Stewart, and John Goerzen
Thank you ! Questions ? francis.toth@yoppworks.com


NEVER BEEN KISSED A movie review by Joe Barlow (c) Copyright 1999
STARRING: Drew Barrymore, David Arquette, Leelee Sobieski, Michael Valtan DIRECTOR: Raja Gosnell WRITERS: Abby Kohn and Marc Silverstein RATED: PG-13 RELEASED: 1999
RATING: * (out of a possible ****)
"Never Been Kissed" is the sort of film that would thrill the cast of "Mystery Science Theater 3000," the legendary television show which has elevated the process of watching horrible movies into an art form. They'd have a field day with this film's attempted sentimentality, its happy-go-lucky acting style, and the numerous jokes which fall far short of anything so blatant as outright humor. They'd also likely appreciate the story's attempts to bring warm and fuzzy cheeziness to every convention it attempts to embrace. Ah, thank you, movie.
If you've seen the trailer, you basically know every twist of the story. Twenty-five year-old Josie Geller (Drew Barrymore) is a junior editor for the Chicago Sun-Times, though she dreams of pursuing her passion: writing.  Her mission: go undercover as a high- school student and write a series of articles about the trials and tribulations modern teens have to face on a daily basis. It's a choice assisgnment; if she does well, it could break her career wide-open.
The problem is, Josie is much too conservative and spastic to be accepted into the elite cliques she's supposed to be milking for story material; she is even, horror of horrors, considered "uncool." Because of her plain, unattractive features (yes, Drew Barrymore is playing an ugly duckling-- more on this later), she is relegated to the outskirts of the school's social circle, eventually befriending a fellow nerd named Aldys (Leelee Sobieski from "Deep Impact"). Aldys appears to be a sweet, highly- intelligent girl, whose biggest problem is her unusual name. "Try being named after a guitar-playing pussycat," laments Josie in a joke that apparently flew over the heads of the fourteen year-olds who filled the theater at my advance screening.
Even among the monsoon of wretchedness currently playing at your local cinema, "Never Been Kissed" stands out as a shining beacon of irrelevance, a shimmering tower of "Who Cares?". None of us are strangers to bad movies, but even so, it's fairly rare to get one which is not only clueless, formulaic, and obviously tailored to the lowest common denominator, but completely oblivious to its own lack of merit as well. "Never Been Kissed," bless its little heart, actually seems to think it's telling the audience an entertaining story, rather than one full of stereotypes and the cinematic cliches we've seen so many times before. It's rather like watching "Casablanca," as performed by a group of first-graders. It's crude, shallow, and insulting. I have absolutely no doubt it will make at least a hundred million dollars at the box office.
As anyone who has seen the trailer already knows, Josie eventually blossoms into a creature of grace and beauty. No surprise there, and the sooner the better: the scenes with the "ugly" Josie are among the most unintentionally funny that I've witnessed all year.  No amount of crusty hairdos or horrid, overdone zombie-esque makeup can hide the fact that our star is hot stuff, and the way the movie expects us to simply buy into the fiction shows us just how low Hollywood's opinion of the average moviegoer's mentality is. (See also "The Truth About Cats and Dogs," "Hope Floats," and the aforementioned "She's All That.") Nonetheless, we are subjected time and time again to cheap gags involving Josie's confirmed "loser" status while the film meanders slowly towards its utterly predictable conclusion.
 The film asks us to cheer for Josie, even as she tries to befriend a group of people who would make Ace Ventura look like a Jedi master. Poor Josie falls in love twice, once with her teacher (Michael Valtan), and once with the school's O.D.M.O.C. (Obligatory Dashing Man on Campus). It's all sweet and gooshy and smarmy, but I wonder how innocent it would've felt if Josie had instead been a twenty-five year-old guy, picking up a seventeen year-old schoolgirl under false pretenses. Would the teenyboppers in the audience still have cheered at the conclusion of the film? Probably not. Double standards are "cool," you know.
("Never Been Kissed" puckers up on Friday, April 9th. Make sure to bring plenty of breath mints.)
E-Mail<EMAIL_ADDRESS>Joe Barlow on Film: http://www.ipass.net/~jbarlow/film.htm
If you'd like to receive new film reviews by e-mail, please write to<EMAIL_ADDRESS>-----------== Posted via Deja News, The Discussion Network ==---------- http://www.dejanews.com/ Search, Read, Discuss, or Start Your Own
The review above was posted to the
rec.arts.movies.reviews newsgroup (de.rec.film.kritiken for German reviews).
The Internet Movie Database accepts no responsibility for the contents of the
review and has no editorial control. Unless stated otherwise, the copyright
belongs to the author.
Please direct comments/criticisms of the review to relevant newsgroups.
Broken URLs inthe reviews are the responsibility of the author.
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Related links: index of all rec.arts.movies.reviews reviews


{% extends "base.html" %}
{% block main %}
{% include "status_codes.html" %}
This is a website showing result of crawling and deploying database applications that are hosted on GitHub.
The project is a part of the research project "Automatic Database Management System Tuning" from CMU database group. The goal of this subproject is to find a large amount of database applications as the test for the tuning methods. We created a tool that searches the Internet for web-based database applications and run them locally in order to learn how they use a DBMS.
We wrote a web crawler that searches for and downloads database applications hosted on open-source repositories (i.e. GitHub). The crawler uses heuristics that allows it to identify whether a project uses a database for storage. We target web-based applications that use well-known web frameworks (i.e. Django, Ruby on Rails). Thus, we can identify whether a project is relevant if its source code references libraries from one of these frameworks.
We then developed a tool for automatically deploying an application in a VM sandbox. Targeting applications that use the common web frameworks listed above makes this step easier because they provide an object-relational mapping library that does not depend on a particular DBMS. Their configurations are also likely to be the same (e.g. setting the DBMS credentials in a common configuration file).
| Project Type |
# of Repo |
# of Deploy |
# of Success |
{% if stats %}
{% for stat in stats %}
| {{ stat.repo_type }} |
{{ stat.num_repo }} |
{{ stat.num_deploy }}
| {{ stat.num_suc }} |
{% endfor %}
{% endif %}
| Repository |
Start Time |
Duration |
Deployment Host |
Result |
{% if attempts %}
{% for attempt in attempts %}
| {{ attempt.repo.name }} |
{% if attempt.start_time %}
{{ attempt.start_time|date:'Y-m-d H:i:s' }} |
{% else %}
- |
{% endif %}
{% if attempt.duration %}
{{ attempt.duration|floatformat }}s
{% else %}
-
{% endif %}
|
{{ attempt.hostname }} |
{{attempt.result_name}}
?
|
{% endfor %}
{% endif %}
{% endblock %}


ln creates a link to file TARGET with the name LINKNAME. If LINKNAME is omitted, a link to TARGET is created in the current dirctory, using the name of TARGET as the LINKNAME
ln creates hard links by default, or symbolic links if the -s (--symbolic) option is specified. When creating hard links, each TARGET must exist.
good read/refresher on hard vs soft links: linuxgazette.net/105/pitcher.html
ln creates links between files


net.floodlightcontroller.util
Class EventHistory<T>
java.lang.Object
net.floodlightcontroller.util.EventHistory<T>
public class EventHistory<T>
- extends java.lang.Object
- Author:
- subrata
|
Method Summary |
void |
clear()
Clear the event history, needs to be done under lock |
int |
getCurrent_index()
|
int |
getEvent_history_size()
|
java.util.ArrayList<EventHistory.Event> |
getEvents()
|
boolean |
isFull()
|
int |
NextIdx()
|
T |
put(T t,
EventHistory.EvAction action)
Add an event to the event history
Eliminate java garbage cration by reusing the same object T
Supplied object t is used to populate the event history array
and the current object at that array location is returned to the
calling process so that the calling process can use that object
for the next event of the same type |
| Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
EV_HISTORY_DEFAULT_SIZE
public static final int EV_HISTORY_DEFAULT_SIZE
- See Also:
- Constant Field Values
event_history_size
public int event_history_size
current_index
public int current_index
full
public boolean full
events
public java.util.ArrayList<EventHistory.Event> events
EventHistory
public EventHistory(int maxEvents)
EventHistory
public EventHistory()
EventHistory
public EventHistory(EventHistory<T> eventHist,
int latestK)
getEvent_history_size
public int getEvent_history_size()
getCurrent_index
public int getCurrent_index()
isFull
public boolean isFull()
getEvents
public java.util.ArrayList<EventHistory.Event> getEvents()
NextIdx
public int NextIdx()
put
public T put(T t,
EventHistory.EvAction action)
- Add an event to the event history
Eliminate java garbage cration by reusing the same object T
Supplied object t is used to populate the event history array
and the current object at that array location is returned to the
calling process so that the calling process can use that object
for the next event of the same type
- Parameters:
t
- op
-
- Returns:
clear
public void clear()
- Clear the event history, needs to be done under lock


'Wheel of Fortune' host Pat Sajak undergoes emergency surgery; Vanna White fills in
by WABCLOS ANGELES -- "Wheel of Fortune" host Pat Sajak is "resting comfortably" after undergoing emergency surgery to correct a blocked intestine, the show announced Friday.
Sajak's surgery was successful, the show said on Twitter, adding that the 73-year-old host is "looking forward to getting back to work."
"Wheel" canceled its Thursday taping in light of Sajak's surgery, but taping resumed Friday with Vanna White filling in for Sajak.
The show tweeted out a message of support to Sajak showing the phrase "Get well soon, Pat!" spelled out on its famous puzzle board.
The episodes White hosted will begin to air on Monday, Dec. 9, as part of the show's Secret Santa Holiday Giveaway. Production photos released by "Wheel" show White on the show's holiday set with Mickey Mouse, Minnie Mouse and other Disney characters.
Sajak and White have hosted the syndicated version of "Wheel of Fortune" for more than 7,000 episodes. She filled in for him once before for one segment of the show, when Sajak had laryngitis in 1996.
The Associated Press contributed to this report.


Pat's Story
Summer flounder, labyrinth fish tripod fish mackerel sabertooth Black mackerel three-toothed puffer shovelnose sturgeon Black swallower gulper pufferfish golden loach. Crocodile shark Rattail barracuda; spadefish dusky grouper labyrinth fish dab.
Man-of-war fish longfin escolar kokopu bleak boarfish oarfish Mexican golden trout mud catfish razorfish dragonet crestfish redtooth triggerfish vendace greenling.
Wormfish masu salmon porbeagle shark, knifefish Chinook salmon shiner murray cod, redlip blenny. California smoothtongue, roughy longjaw mudsucker, smalltooth sawfish dusky grouper olive flounder carpetshark dace, menhaden striped burrfish pygmy sunfish.
Batfish priapumfish round whitefish, "grass carp walleye darter turkeyfish stingfish, arapaima hatchetfish," streamer fish lampfish bonytail chub false cat shark. Desert pupfish shovelnose sturgeon; plaice springfish, beaked sandfish sandperch, sardine mummichog threespine stickleback cod icefish shovelnose sturgeon sea catfish jewel tetra.
Stonecat yellow-and-black triplefin northern Stargazer beluga sturgeon leatherjacket goatfish, deepwater stingray yellowtail tang northern Stargazer pleco, chub. Ghost knifefish sheatfish; wels catfish pencil catfish tripod fish blacktip reef shark orbicular batfish Billfish Dolly Varden trout airsac catfish, gianttail.


ACat ADT Tools
ACat ADT Tools: A suite of tools for creating and manipulating ADTs (Action Data Tables) for the EU FP7 ACat project.
The ACat ADT Tools suite is a Matlab library for creating and manipulating ADTs (Action Data Tables) for the EU FP7 ACat project, consisting of:
-
adttool: A tool that generates new, or populates existing, ADT XML files using ROS bag recordings.
-
adteditor: A GUI editor that acts as an interface to adttool in order to make certain tasks easier.
The GUI editor allows for ROS bag files to be opened in Matlab and examined with a
‘video editor’ type of interface, where the recorded data trajectories may be displayed on a timeline
accompanied by visualisations of RGB and depth data in separate windows.
This is not too dissimilar to the rqt_bag
tool that comes bundled with ROS,
but it adds additional types of functionality that were specific to the needs of our project.
The trajectory data may be broken into ‘action chunks’ using a simple click-and-drag interface.
The action chunks may be subsequently labelled depending on what task the recorded robot
was engaged in at the time, e.g. “Approach hole” or “Insert peg”.
After the data has been chunked, a semantic event chain (SEC)
may be specified using dynamically generated checkboxes (see bottom-right of figure).
Finally, an action data table may be exported to an XML file that contains all of the
relevant information regarding the action chunks, timings, SEC table, etc.


FlinkCEP is the Complex Event Processing (CEP) library implemented on top of Flink. It allows you to detect event patterns in an endless stream of events, giving you the opportunity to get hold of what’s important in your data.
This page describes the API calls available in Flink CEP. We start by presenting the Pattern API, which allows you to specify the patterns that you want to detect in your stream, before presenting how you can detect and act upon matching event sequences. We then present the assumptions the CEP library makes when dealing with lateness in event time and how you can migrate your job from an older Flink version to Flink-1.3.
If you want to jump right in, set up a Flink program and
add the FlinkCEP dependency to the pom.xml
of your project.
Info FlinkCEP is not part of the binary distribution. See how to link with it for cluster execution here.
Now you can start writing your first CEP program using the Pattern API.
Attention The events in the DataStream
to which
you want to apply pattern matching must implement proper equals()
and hashCode()
methods
because FlinkCEP uses them for comparing and matching events.
The pattern API allows you to define complex pattern sequences that you want to extract from your input stream.
Each complex pattern sequence consists of multiple simple patterns, i.e. patterns looking for individual events with the same properties. From now on, we will call these simple patterns patterns, and the final complex pattern sequence we are searching for in the stream, the pattern sequence. You can see a pattern sequence as a graph of such patterns, where transitions from one pattern to the next occur based on user-specified
conditions, e.g. event.getName().equals("end")
. A match is a sequence of input events which visits all
patterns of the complex pattern graph, through a sequence of valid pattern transitions.
Attention Each pattern must have a unique name, which you use later to identify the matched events.
Attention Pattern names CANNOT contain the character ":"
.
In the rest of this section we will first describe how to define Individual Patterns, and then how you can combine individual patterns into Complex Patterns.
A Pattern can be either a singleton or a looping pattern. Singleton patterns accept a single
event, while looping patterns can accept more than one. In pattern matching symbols, the pattern "a b+ c? d"
(or "a"
, followed by one or more "b"
’s, optionally followed by a "c"
, followed by a "d"
), a
, c?
, and d
are
singleton patterns, while b+
is a looping one. By default, a pattern is a singleton pattern and you can transform
it to a looping one by using Quantifiers. Each pattern can have one or more
Conditions based on which it accepts events.
In FlinkCEP, you can specify looping patterns using these methods: pattern.oneOrMore()
, for patterns that expect one or more occurrences of a given event (e.g. the b+
mentioned before); and pattern.times(#ofTimes)
, for patterns that
expect a specific number of occurrences of a given type of event, e.g. 4 a
’s; and pattern.times(#fromTimes, #toTimes)
, for patterns that expect a specific minimum number of occurrences and a maximum number of occurrences of a given type of event, e.g. 2-4 a
s.
You can make looping patterns greedy using the pattern.greedy()
method, but you cannot yet make group patterns greedy. You can make all patterns, looping or not, optional using the pattern.optional()
method.
For a pattern named start
, the following are valid quantifiers:
For every pattern you can specify a condition that an incoming event has to meet in order to be “accepted” into the pattern e.g. its value should be larger than 5,
or larger than the average value of the previously accepted events.
You can specify conditions on the event properties via the pattern.where()
, pattern.or()
or pattern.until()
methods.
These can be either IterativeCondition
s or SimpleCondition
s.
Iterative Conditions: This is the most general type of condition. This is how you can specify a condition that accepts subsequent events based on properties of the previously accepted events or a statistic over a subset of them.
Below is the code for an iterative condition that accepts the next event for a pattern named “middle” if its name starts
with “foo”, and if the sum of the prices of the previously accepted events for that pattern plus the price of the current event do not exceed the value of 5.0. Iterative conditions can be powerful, especially in combination with looping patterns, e.g. oneOrMore()
.
Attention The call to ctx.getEventsForPattern(...)
finds all the
previously accepted events for a given potential match. The cost of this operation can vary, so when implementing
your condition, try to minimize its use.
Described context gives one access to event time characteristics as well. For more info see Time context.
Simple Conditions: This type of condition extends the aforementioned IterativeCondition
class and decides
whether to accept an event or not, based only on properties of the event itself.
Finally, you can also restrict the type of the accepted event to a subtype of the initial event type (here Event
)
via the pattern.subtype(subClass)
method.
Combining Conditions: As shown above, you can combine the subtype
condition with additional conditions. This holds for every condition. You can arbitrarily combine conditions by sequentially calling where()
. The final result will be the logical AND of the results of the individual conditions. To combine conditions using OR, you can use the or()
method, as shown below.
Stop condition: In case of looping patterns (oneOrMore()
and oneOrMore().optional()
) you can
also specify a stop condition, e.g. accept events with value larger than 5 until the sum of values is smaller than 50.
To better understand it, have a look at the following example. Given
pattern like "(a+ until b)"
(one or more "a"
until "b"
)
a sequence of incoming events "a1" "c" "a2" "b" "a3"
the library will output results: {a1 a2} {a1} {a2} {a3}
.
As you can see {a1 a2 a3}
or {a2 a3}
are not returned due to the stop condition.
| Pattern Operation | Description |
|---|---|
| where(condition) |
Defines a condition for the current pattern. To match the pattern, an event must satisfy the condition. Multiple consecutive where() clauses lead to their conditions being ANDed: |
| or(condition) |
Adds a new condition which is ORed with an existing one. An event can match the pattern only if it passes at least one of the conditions: |
| until(condition) |
Specifies a stop condition for a looping pattern. Meaning if event matching the given condition occurs, no more events will be accepted into the pattern. Applicable only in conjunction with NOTE: It allows for cleaning state for corresponding pattern on event-based condition. |
| subtype(subClass) |
Defines a subtype condition for the current pattern. An event can only match the pattern if it is of this subtype: |
| oneOrMore() |
Specifies that this pattern expects at least one occurrence of a matching event. By default a relaxed internal contiguity (between subsequent events) is used. For more info on internal contiguity see consecutive. NOTE: It is advised to use either |
| timesOrMore(#times) |
Specifies that this pattern expects at least #times occurrences of a matching event. By default a relaxed internal contiguity (between subsequent events) is used. For more info on internal contiguity see consecutive. |
| times(#ofTimes) |
Specifies that this pattern expects an exact number of occurrences of a matching event. By default a relaxed internal contiguity (between subsequent events) is used. For more info on internal contiguity see consecutive. |
| times(#fromTimes, #toTimes) |
Specifies that this pattern expects occurrences between #fromTimes and #toTimes of a matching event. By default a relaxed internal contiguity (between subsequent events) is used. For more info on internal contiguity see consecutive. |
| optional() |
Specifies that this pattern is optional, i.e. it may not occur at all. This is applicable to all aforementioned quantifiers. |
| greedy() |
Specifies that this pattern is greedy, i.e. it will repeat as many as possible. This is only applicable to quantifiers and it does not support group pattern currently. |
| Pattern Operation | Description |
|---|---|
| where(condition) |
Defines a condition for the current pattern. To match the pattern, an event must satisfy the condition. Multiple consecutive where() clauses lead to their conditions being ANDed: |
| or(condition) |
Adds a new condition which is ORed with an existing one. An event can match the pattern only if it passes at least one of the conditions: |
| until(condition) |
Specifies a stop condition for looping pattern. Meaning if event matching the given condition occurs, no more events will be accepted into the pattern. Applicable only in conjunction with NOTE: It allows for cleaning state for corresponding pattern on event-based condition. |
| subtype(subClass) |
Defines a subtype condition for the current pattern. An event can only match the pattern if it is of this subtype: |
| oneOrMore() |
Specifies that this pattern expects at least one occurrence of a matching event. By default a relaxed internal contiguity (between subsequent events) is used. For more info on internal contiguity see consecutive. NOTE: It is advised to use either |
| timesOrMore(#times) |
Specifies that this pattern expects at least #times occurrences of a matching event. By default a relaxed internal contiguity (between subsequent events) is used. For more info on internal contiguity see consecutive. |
| times(#ofTimes) |
Specifies that this pattern expects an exact number of occurrences of a matching event. By default a relaxed internal contiguity (between subsequent events) is used. For more info on internal contiguity see consecutive. |
| times(#fromTimes, #toTimes) |
Specifies that this pattern expects occurrences between #fromTimes and #toTimes of a matching event. By default a relaxed internal contiguity (between subsequent events) is used. For more info on internal contiguity see consecutive. |
| optional() |
Specifies that this pattern is optional, i.e. it may not occur at all. This is applicable to all aforementioned quantifiers. |
| greedy() |
Specifies that this pattern is greedy, i.e. it will repeat as many as possible. This is only applicable to quantifiers and it does not support group pattern currently. |
Now that you’ve seen what an individual pattern can look like, it is time to see how to combine them into a full pattern sequence.
A pattern sequence has to start with an initial pattern, as shown below:
Next, you can append more patterns to your pattern sequence by specifying the desired contiguity conditions between them. FlinkCEP supports the following forms of contiguity between events:
Strict Contiguity: Expects all matching events to appear strictly one after the other, without any non-matching events in-between.
Relaxed Contiguity: Ignores non-matching events appearing in-between the matching ones.
Non-Deterministic Relaxed Contiguity: Further relaxes contiguity, allowing additional matches that ignore some matching events.
To apply them between consecutive patterns, you can use:
next()
, for strict,followedBy()
, for relaxed, andfollowedByAny()
, for non-deterministic relaxed contiguity.or
notNext()
, if you do not want an event type to directly follow anothernotFollowedBy()
, if you do not want an event type to be anywhere between two other event types.Attention A pattern sequence cannot end in notFollowedBy()
.
Attention A NOT
pattern cannot be preceded by an optional one.
Relaxed contiguity means that only the first succeeding matching event will be matched, while
with non-deterministic relaxed contiguity, multiple matches will be emitted for the same beginning. As an example,
a pattern "a b"
, given the event sequence "a", "c", "b1", "b2"
, will give the following results:
Strict Contiguity between "a"
and "b"
: {}
(no match), the "c"
after "a"
causes "a"
to be discarded.
Relaxed Contiguity between "a"
and "b"
: {a b1}
, as relaxed continuity is viewed as “skip non-matching events
till the next matching one”.
Non-Deterministic Relaxed Contiguity between "a"
and "b"
: {a b1}
, {a b2}
, as this is the most general form.
It’s also possible to define a temporal constraint for the pattern to be valid.
For example, you can define that a pattern should occur within 10 seconds via the pattern.within()
method.
Temporal patterns are supported for both processing and event time.
Attention A pattern sequence can only have one temporal constraint. If multiple such constraints are defined on different individual patterns, then the smallest is applied.
You can apply the same contiguity condition as discussed in the previous section within a looping pattern.
The contiguity will be applied between elements accepted into such a pattern.
To illustrate the above with an example, a pattern sequence "a b+ c"
("a"
followed by any(non-deterministic relaxed) sequence of one or more "b"
’s followed by a "c"
) with
input "a", "b1", "d1", "b2", "d2", "b3" "c"
will have the following results:
Strict Contiguity: {a b3 c}
– the "d1"
after "b1"
causes "b1"
to be discarded, the same happens for "b2"
because of "d2"
.
Relaxed Contiguity: {a b1 c}
, {a b1 b2 c}
, {a b1 b2 b3 c}
, {a b2 c}
, {a b2 b3 c}
, {a b3 c}
- "d"
’s are ignored.
Non-Deterministic Relaxed Contiguity: {a b1 c}
, {a b1 b2 c}
, {a b1 b3 c}
, {a b1 b2 b3 c}
, {a b2 c}
, {a b2 b3 c}
, {a b3 c}
-
notice the {a b1 b3 c}
, which is the result of relaxing contiguity between "b"
’s.
For looping patterns (e.g. oneOrMore()
and times()
) the default is relaxed contiguity. If you want
strict contiguity, you have to explicitly specify it by using the consecutive()
call, and if you want
non-deterministic relaxed contiguity you can use the allowCombinations()
call.
It’s also possible to define a pattern sequence as the condition for begin
, followedBy
, followedByAny
and
next
. The pattern sequence will be considered as the matching condition logically and a GroupPattern
will be
returned and it is possible to apply oneOrMore()
, times(#ofTimes)
, times(#fromTimes, #toTimes)
, optional()
,
consecutive()
, allowCombinations()
to the GroupPattern
.
| Pattern Operation | Description |
|---|---|
| begin(#name) |
Defines a starting pattern: |
| begin(#pattern_sequence) |
Defines a starting pattern: |
| next(#name) |
Appends a new pattern. A matching event has to directly succeed the previous matching event (strict contiguity): |
| next(#pattern_sequence) |
Appends a new pattern. A sequence of matching events have to directly succeed the previous matching event (strict contiguity): |
| followedBy(#name) |
Appends a new pattern. Other events can occur between a matching event and the previous matching event (relaxed contiguity): |
| followedBy(#pattern_sequence) |
Appends a new pattern. Other events can occur between a sequence of matching events and the previous matching event (relaxed contiguity): |
| followedByAny(#name) |
Appends a new pattern. Other events can occur between a matching event and the previous matching event, and alternative matches will be presented for every alternative matching event (non-deterministic relaxed contiguity): |
| followedByAny(#pattern_sequence) |
Appends a new pattern. Other events can occur between a sequence of matching events and the previous matching event, and alternative matches will be presented for every alternative sequence of matching events (non-deterministic relaxed contiguity): |
| notNext() |
Appends a new negative pattern. A matching (negative) event has to directly succeed the previous matching event (strict contiguity) for the partial match to be discarded: |
| notFollowedBy() |
Appends a new negative pattern. A partial matching event sequence will be discarded even if other events occur between the matching (negative) event and the previous matching event (relaxed contiguity): |
| within(time) |
Defines the maximum time interval for an event sequence to match the pattern. If a non-completed event sequence exceeds this time, it is discarded: |
| Pattern Operation | Description |
|---|---|
| begin(#name) |
Defines a starting pattern: |
| begin(#pattern_sequence) |
Defines a starting pattern: |
| next(#name) |
Appends a new pattern. A matching event has to directly succeed the previous matching event (strict contiguity): |
| next(#pattern_sequence) |
Appends a new pattern. A sequence of matching events have to directly succeed the previous matching event (strict contiguity): |
| followedBy(#name) |
Appends a new pattern. Other events can occur between a matching event and the previous matching event (relaxed contiguity) : |
| followedBy(#pattern_sequence) |
Appends a new pattern. Other events can occur between a sequence of matching events and the previous matching event (relaxed contiguity) : |
| followedByAny(#name) |
Appends a new pattern. Other events can occur between a matching event and the previous matching event, and alternative matches will be presented for every alternative matching event (non-deterministic relaxed contiguity): |
| followedByAny(#pattern_sequence) |
Appends a new pattern. Other events can occur between a sequence of matching events and the previous matching event, and alternative matches will be presented for every alternative sequence of matching events (non-deterministic relaxed contiguity): |
| notNext() |
Appends a new negative pattern. A matching (negative) event has to directly succeed the previous matching event (strict contiguity) for the partial match to be discarded: |
| notFollowedBy() |
Appends a new negative pattern. A partial matching event sequence will be discarded even if other events occur between the matching (negative) event and the previous matching event (relaxed contiguity): |
| within(time) |
Defines the maximum time interval for an event sequence to match the pattern. If a non-completed event sequence exceeds this time, it is discarded: |
For a given pattern, the same event may be assigned to multiple successful matches. To control to how many matches an event will be assigned, you need to specify the skip strategy called AfterMatchSkipStrategy
. There are four types of skip strategies, listed as follows:
Notice that when using SKIP_TO_FIRST and SKIP_TO_LAST skip strategy, a valid PatternName should also be specified.
For example, for a given pattern b+ c
and a data stream b1 b2 b3 c
, the differences between these four skip strategies are as follows:
| Skip Strategy | Result | Description |
|---|---|---|
| NO_SKIP |
b1 b2 b3 c b2 b3 c b3 c |
After found matching b1 b2 b3 c , the match process will not discard any result. |
| SKIP_TO_NEXT |
b1 b2 b3 c b2 b3 c b3 c |
After found matching b1 b2 b3 c , the match process will not discard any result, because no other match could start at b1. |
| SKIP_PAST_LAST_EVENT |
b1 b2 b3 c |
After found matching b1 b2 b3 c , the match process will discard all started partial matches. |
SKIP_TO_FIRST[b ] |
b1 b2 b3 c b2 b3 c b3 c |
After found matching b1 b2 b3 c , the match process will try to discard all partial matches started before b1 , but there are no such matches. Therefore nothing will be discarded. |
SKIP_TO_LAST[b ] |
b1 b2 b3 c b3 c |
After found matching b1 b2 b3 c , the match process will try to discard all partial matches started before b3 . There is one such match b2 b3 c |
Have a look also at another example to better see the difference between NO_SKIP and SKIP_TO_FIRST:
Pattern: (a | b | c) (b | c) c+.greedy d
and sequence: a b c1 c2 c3 d
Then the results will be:
| Skip Strategy | Result | Description |
|---|---|---|
| NO_SKIP |
a b c1 c2 c3 d b c1 c2 c3 d c1 c2 c3 d |
After found matching a b c1 c2 c3 d , the match process will not discard any result. |
SKIP_TO_FIRST[c* ] |
a b c1 c2 c3 d c1 c2 c3 d |
After found matching a b c1 c2 c3 d , the match process will discard all partial matches started before c1 . There is one such match b c1 c2 c3 d . |
To better understand the difference between NO_SKIP and SKIP_TO_NEXT take a look at following example:
Pattern: a b+
and sequence: a b1 b2 b3
Then the results will be:
| Skip Strategy | Result | Description |
|---|---|---|
| NO_SKIP |
a b1 a b1 b2 a b1 b2 b3 |
After found matching a b1 , the match process will not discard any result. |
| SKIP_TO_NEXT |
a b1 |
After found matching a b1 , the match process will discard all partial matches started at a . This means neither a b1 b2 nor a b1 b2 b3 could be generated. |
To specify which skip strategy to use, just create an AfterMatchSkipStrategy
by calling:
| Function | Description |
|---|---|
AfterMatchSkipStrategy.noSkip() |
Create a NO_SKIP skip strategy |
AfterMatchSkipStrategy.skipToNext() |
Create a SKIP_TO_NEXT skip strategy |
AfterMatchSkipStrategy.skipPastLastEvent() |
Create a SKIP_PAST_LAST_EVENT skip strategy |
AfterMatchSkipStrategy.skipToFirst(patternName) |
Create a SKIP_TO_FIRST skip strategy with the referenced pattern name patternName |
AfterMatchSkipStrategy.skipToLast(patternName) |
Create a SKIP_TO_LAST skip strategy with the referenced pattern name patternName |
Then apply the skip strategy to a pattern by calling:
Attention For SKIP_TO_FIRST/LAST there are two options how to handle cases when there are no elements mapped to the specified variable. By default a NO_SKIP strategy will be used in this case. The other option is to throw exception in such situation. One can enable this option by:
After specifying the pattern sequence you are looking for, it is time to apply it to your input stream to detect
potential matches. To run a stream of events against your pattern sequence, you have to create a PatternStream
.
Given an input stream input
, a pattern pattern
and an optional comparator comparator
used to sort events with the same timestamp in case of EventTime or that arrived at the same moment, you create the PatternStream
by calling:
The input stream can be keyed or non-keyed depending on your use-case.
Attention Applying your pattern on a non-keyed stream will result in a job with parallelism equal to 1.
Once you have obtained a PatternStream
you can apply transformation to detected event sequences. The suggested way of doing that
is by PatternProcessFunction
.
A PatternProcessFunction
has a processMatch
method which is called for each matching event sequence.
It receives a match in the form of Map<String, List<IN>>
where the key is the name of each pattern in your pattern
sequence and the value is a list of all accepted events for that pattern (IN
is the type of your input elements).
The events for a given pattern are ordered by timestamp. The reason for returning a list of accepted events for each
pattern is that when using looping patterns (e.g. oneToMany()
and times()
), more than one event may be accepted for a given pattern.
The PatternProcessFunction
gives access to a Context
object. Thanks to it, one can access time related
characteristics such as currentProcessingTime
or timestamp
of current match (which is the timestamp of the last element assigned to the match).
For more info see Time context.
Through this context one can also emit results to a side-output.
Whenever a pattern has a window length attached via the within
keyword, it is possible that partial event sequences
are discarded because they exceed the window length. To act upon a timed out partial match one can use TimedOutPartialMatchHandler
interface.
The interface is supposed to be used in a mixin style. This mean you can additionally implement this interface with your PatternProcessFunction
.
The TimedOutPartialMatchHandler
provides the additional processTimedOutMatch
method which will be called for every timed out partial match.
Note The processTimedOutMatch
does not give one access to the main output. You can still emit results
through side-outputs though, through the Context
object.
The aforementioned PatternProcessFunction
was introduced in Flink 1.8 and since then it is the recommended way to interact with matches.
One can still use the old style API like select
/flatSelect
, which internally will be translated into a PatternProcessFunction
.
In CEP
the order in which elements are processed matters. To guarantee that elements are processed in the correct order when working in event time, an incoming element is initially put in a buffer where elements are sorted in ascending order based on their timestamp, and when a watermark arrives, all the elements in this buffer with timestamps smaller than that of the watermark are processed. This implies that elements between watermarks are processed in event-time order.
Attention The library assumes correctness of the watermark when working in event time.
To guarantee that elements across watermarks are processed in event-time order, Flink’s CEP library assumes correctness of the watermark, and considers as late elements whose timestamp is smaller than that of the last seen watermark. Late elements are not further processed. Also, you can specify a sideOutput tag to collect the late elements come after the last seen watermark, you can use it like this.
In PatternProcessFunction as well as in IterativeCondition user has access to a context
that implements TimeContext
as follows:
This context gives user access to time characteristics of processed events (incoming records in case of IterativeCondition
and matches in case of PatternProcessFunction
).
Call to TimeContext#currentProcessingTime
always gives you the value of current processing time and this call should be preferred to e.g. calling System.currentTimeMillis()
.
In case of TimeContext#timestamp()
the returned value is equal to assigned timestamp in case of EventTime
. In ProcessingTime
this will equal to the point of time when said event entered
cep operator (or when the match was generated in case of PatternProcessFunction
). This means that the value will be consistent across multiple calls to that method.
The following example detects the pattern start, middle(name = "error") -> end(name = "critical")
on a keyed data
stream of Events
. The events are keyed by their id
s and a valid pattern has to occur within 10 seconds.
The whole processing is done with event time.
In Flink-1.4 the backward compatibility of CEP library with <= Flink 1.2 was dropped. Unfortunately it is not possible to restore a CEP job that was once run with 1.2.x
The CEP library in Flink-1.3 ships with a number of new features which have led to some changes in the API. Here we describe the changes that you need to make to your old CEP jobs, in order to be able to run them with Flink-1.3. After making these changes and recompiling your job, you will be able to resume its execution from a savepoint taken with the old version of your job, i.e. without having to re-process your past data.
The changes required are:
Change your conditions (the ones in the where(...)
clause) to extend the SimpleCondition
class instead of
implementing the FilterFunction
interface.
Change your functions provided as arguments to the select(...)
and flatSelect(...)
methods to expect a list of
events associated with each pattern (List
in Java
, Iterable
in Scala
). This is because with the addition of
the looping patterns, multiple input events can match a single (looping) pattern.
The followedBy()
in Flink 1.1 and 1.2 implied non-deterministic relaxed contiguity
(see
here). In Flink 1.3 this has changed and followedBy()
implies relaxed contiguity
,
while followedByAny()
should be used if non-deterministic relaxed contiguity
is required.


|
Garlic-seasoned crust with a rich, buttery taste.
|
Two layers of cheese, toppings to the edge, and a crust that bakes up golden and crispy with a buttery taste.
|
Thin enough for the optimum crispy to crunchy ratio.
|
Hand stretched to the big,thin and perfectly foldable.
|


{% extends 'user/student/course/java/layout.html' %} {% block body %}
As explained in the previous chapter, a variable in Java must be a specified data type:
int myNum = 5; // Integer (whole number)
float myFloatNum = 5.99f; // Floating point number
char myLetter = 'D'; // Character
boolean myBool = true; // Boolean
String myText = "Hello"; // String
Data types are divided into two groups:
byte
, short
, int
, long
,
float
, double
, boolean
and char
A primitive data type specifies the size and type of variable values, and it has no additional methods.
There are eight primitive data types in Java:
| Data Type | Size | Description |
|---|---|---|
| byte | 1 byte | Stores whole numbers from -128 to 127 |
| short | 2 bytes | Stores whole numbers from -32,768 to 32,767 |
| int | 4 bytes | Stores whole numbers from -2,147,483,648 to 2,147,483,647 |
| long | 8 bytes | Stores whole numbers from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 |
| float | 4 bytes | Stores fractional numbers. Sufficient for storing 6 to 7 decimal digits |
| double | 8 bytes | Stores fractional numbers. Sufficient for storing 15 decimal digits |
| boolean | 1 bit | Stores true or false values |
| char | 2 bytes | Stores a single character/letter or ASCII values |
Primitive number types are divided into two groups:
Integer types stores whole numbers, positive or negative (such as 123 or -456), without decimals.
Valid types are byte
, short
, int
and long
. Which type you should use, depends on the numeric value.
Floating point types represents numbers with a fractional part,
containing one or more decimals. There are two types: float
and double
.
Even though there are many numeric types in Java, the most used for numbers
are int
(for whole numbers) and double
(for floating point numbers). However, we will describe them all as you continue to
read.
The byte
data type can store whole numbers
from -128 to 127. This can be used instead of int
or other integer types to
save memory when you are certain that the value will be within -128 and 127:
byte myNum = 100;
System.out.println(myNum);
The short
data type can store whole numbers from -32768 to 32767:
short myNum = 5000;
System.out.println(myNum);
The int
data type can store whole numbers from -2147483648 to<PHONE_NUMBER>. In general, and in our tutorial, the int
data type is
the preferred data type when we create variables with a numeric value.
int myNum = 100000;
System.out.println(myNum);
The long
data type can store whole numbers from -9223372036854775808 to<PHONE_NUMBER>854775807. This is used when int is not large enough to store the value. Note that you should end the value with an "L":
long myNum =<PHONE_NUMBER>0L;
System.out.println(myNum);
You should use a floating point type whenever you need a number with a decimal, such as 9.99 or 3.14515.
The float
data type can store fractional numbers from 3.4e−038 to 3.4e+038. Note that you should end the value with an "f":
float myNum = 5.75f;
System.out.println(myNum);
The double
data type can store fractional numbers from 1.7e−308 to 1.7e+308. Note that you should end the value with a "d":
double myNum = 19.99d;
System.out.println(myNum);
Use float
or double
?
The precision of a floating point value indicates how many digits the value can have
after the decimal point.
The precision of float
is only six or seven
decimal digits, while double
variables have a precision
of about 15 digits. Therefore it is safer to use double
for most calculations.
A floating point number can also be a scientific number with an "e" to indicate the power of 10:
float f1 = 35e3f;
double d1 = 12E4d;
System.out.println(f1);
System.out.println(d1);
A boolean data type is declared with the boolean
keyword and can only take the values true
or false
:
boolean isJavaFun = true;
boolean isFishTasty = false;
System.out.println(isJavaFun); // Outputs true
System.out.println(isFishTasty); // Outputs false
Boolean values are mostly used for conditional testing, which you will learn more about in a later chapter.
The char
data type is used to store a
single character. The character must be
surrounded by single quotes, like 'A' or 'c':
char myGrade = 'B';
System.out.println(myGrade);
Alternatively, you can use ASCII values to display certain characters:
char a = 65, b = 66, c = 67;
System.out.println(a);
System.out.println(b);
System.out.println(c);
Tip: A list of all ASCII values can be found in our ASCII Table Reference.
The String
data type is used to store a sequence of characters (text). String values must be surrounded by double quotes:
String greeting = "Hello World";
System.out.println(greeting);
The String type is so much used and integrated in Java, that some call it "the special ninth type".
A String in Java is actually a non-primitive data type, because it refers to an object. The String object has methods that are used to perform certain operations on strings. Don't worry if you don't understand the term "object" just yet. We will learn more about strings and objects in a later chapter.
Non-primitive data types are called reference types because they refer to objects.
The main difference between primitive and non-primitive data types are:
String
).null
.


This record stores the coordinates of the vertices in a polygon object.
Record Data
|
Offset |
Field Name |
Size |
Contents |
|
4 |
rgVTX |
var |
Array of vertex coordinates |
The VTX structure is:
typedef struct _vtx
{
unsigned short int x;
unsigned short int y;
}
VTX;
The upper-left corner of a polygon’s bounding rectangle is (x = 0h, y = 0h), and the lower-right corner is (x = 4000h, y = 4000h), as shown in the following illustration.
After the polygon is drawn, Excel normalizes the coordinates in rgVTX to the bounding rectangle. The actual size of the polygon can be derived from the size of the bounding rectangle in the common object fields section of the OBJ record.


My Story
a little bit about Joshua
This one-page HTML portfolio is provided by TemplateMo. This layout is based on Bootstrap v5.1.3 CSS and JS libraries. Image credits go to Unsplash and FreePik for images used in this page.
You are allowed to use this template for your websites. You are not allowed to redistribute the template ZIP file on any other website. Please contact us for more info.
Information
Years of Experiences
Happy Customers
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Digital Awards
Companies I've had worked
Services
Websites
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Joshua is a professional web developer. Feel free to get in touch with me.
Email Call


-
_mouseActionListener
framework.utils.MouseListenerEvent _mouseActionListener
This mouse adapter handles events when the card is pressed with the mouse
-
_controller
CardController _controller
The controller associated to this card view
-
_dragListener
framework.core.mvc.view.layout.DragListener _dragListener
The draggable listener associated to this view
-
_collisionListener
framework.core.physics.CollisionListener _collisionListener
The collision listener associated to this view
-
layeredPane
javax.swing.JLayeredPane layeredPane
The layered pane that holds the potential list of cards that would be dragged along-side this card vuew
-
_highlightsEnabled
boolean _highlightsEnabled
Indicates if selections are enabled
-
_cardSelectionEvents
game.views.CardView.CardSelectionEvents _cardSelectionEvents
The card selection events associated to this card view
-
_cardProxy
CardProxyView _cardProxy
The card proxy associated to this view


4. Confidential Information¶
Chinese proverb
Be mindful of guarding against harm from others, and stay away from placing harming upon others.
If you are a real Data Scientist, you have to share your code with your colleagues or release your code for Code Review or Quality assurance(QA). You will definitely do not want to have your User Information
in the code. So you can save them in login.txt in a safe folder:
runawayhorse001
PythonTips
and use the following code to import your User Information
:
#User Information
try:
login = pd.read_csv(r'login.txt', header=None)
user = login[0][0]
pw = login[0][1]
print('User information is ready!')
except:
print('Login information is not available!!!')
You may also want to get the User Information
by using os.environ
in Python
:
try:
user = os.environ['LOGNAME']
except OSError:
user = os.environ['USER']
except OSError:
user = os.environ['USERNAME']
print(err)
except OSError as err:
print('The user information is not available!!!')


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About Me
Hi, I'm KaVaughn Irons and I have 6 months of experience working with web design. The Case Western Reserve program taught me a ton! I would be honored to work with you and use my skills for whatever you need. Please click on porfolio to see my work. Thank you for checking out my website!


class Solution: def minCostConnectPoints(self, points: List[List[int]]) -> int: n = len(points) mst, edges = [], [] reps = [i for i in range(n)] for vi in range(n): for vj in range(n): if vi==vj: continue edges.append((abs(points[vi][0]-points[vj][0])+abs(points[vi][1]-points[vj][1]),vi,vj)) edges.sort() ans = 0 for weight, vi, vj in edges: if reps[vi] != reps[vj]: ans+=weight repi, repj = reps[vi], reps[vj] for v in range(n): if reps[v] == repj: reps[v] = repi return ans


Error 400 - Bad Request
The requested host either does not exist or the hostmaster has not correctly configured the website.
If you believe this is an error, contact the hostmaster.
Stelch Web Server / <%SERVER_BUILD%>


org.apache.axis.components.net
Interfaces
SecureSocketFactory
SocketFactory
TransportClientProperties
Classes
BooleanHolder
DefaultHTTPSTransportClientProperties
DefaultHTTPTransportClientProperties
DefaultSocketFactory
IBMFakeTrustSocketFactory
IBMFakeTrustSocketFactory.FakeX509TrustManager
IBMJSSESocketFactory
JSSESocketFactory
SocketFactoryFactory
SunFakeTrustSocketFactory
SunFakeTrustSocketFactory.FakeX509TrustManager
SunJSSESocketFactory
TransportClientPropertiesFactory


mamba
Fast, cross-platform package manager, intended as a drop-in replacement for conda.
Some subcommands such as `mamba repoquery` have their own usage documentation.
More information: home page
- Create a new environment, installing the specified packages into it:
mamba create --name environment_name python=3.10 matplotlib
- Install packages into the current environment, specifying the package [c]hannel:
mamba install -c conda-forge python=3.6 numpy
- Update all packages in the current environment:
mamba update --all
- Search for a specific package across repositories:
mamba repoquery search numpy
- List all environments:
mamba info --envs
- Remove unused [p]ackages and [t]arballs from the cache:
mamba clean -pt
- Activate an environment:
mamba activate environment_name
- List all installed packages in the currently activated environment:
mamba list


System Architect Picture "Image Valued Qualifier"
Parent Diagram:
Phenomenon Qualifier
(OMT Object Model)


Baby pandas are born pink and measure about 15cm – that’s about the size of a pencil! They are also born blind and only open their eyes six to eight weeks after birth.
The giant panda also known as panda bear or simply panda is a bear native to south central China. It is easily recognized by the large, distinctive black patches around its eyes, over the ears, and across its round body.


CPAN
Section: Perl Programmers Reference Guide (1)Updated: 2012-06-22
Index Return to Main Contents
NAME
cpan - easily interact with CPAN from the command lineSYNOPSIS
# with arguments and no switches, installs specified modules cpan module_name [ module_name ... ] # with switches, installs modules with extra behavior cpan [-cfimt] module_name [ module_name ... ] # without arguments, starts CPAN.pm shell cpan # without arguments, but some switches cpan [-ahrvACDLO]
DESCRIPTION
This script provides a command interface (not a shell) to CPAN. At the moment it uses CPAN.pm to do the work, but it is not a one-shot command runner for CPAN.pm.Meta Options
These options are mutually exclusive, and the script processes them in this order: [hvCAar]. Once the script finds one, it ignores the others, and then exits after it finishes the task. The script ignores any other command line options.- -a
- Creates the CPAN.pm autobundle with CPAN::Shell->autobundle.
- -A module [ module ... ]
- Shows the primary maintainers for the specified modules
- -C module [ module ... ]
- Show the "Changes" files for the specified modules
- -D module [ module ... ]
- Show the module details. This prints one line for each out-of-date module (meaning, modules locally installed but have newer versions on CPAN). Each line has three columns: module name, local version, and CPAN version.
- -L author [ author ... ]
- List the modules by the specified authors.
- -h
- Prints a help message.
- -O
- Show the out-of-date modules.
- -r
- Recompiles dynamically loaded modules with CPAN::Shell->recompile.
- -v
- Print the script version and CPAN.pm version.
Module options
These options are mutually exclusive, and the script processes them in alphabetical order. It only processes the first one it finds.- c
- Runs a `make clean` in the specified module's directories.
- f
- Forces the specified action, when it normally would have failed.
- i
- Installed the specified modules.
- m
- Makes the specified modules.
- t
- Runs a `make test` on the specified modules.
Examples
# print a help message cpan -h # print the version numbers cpan -v # create an autobundle cpan -a # recompile modules cpan -r # install modules ( sole -i is optional ) cpan -i Netscape::Booksmarks Business::ISBN # force install modules ( must use -i ) cpan -fi CGI::Minimal URI
TO DO
BUGS
* none notedSEE ALSO
Most behaviour, including environment variables and configuration, comes directly from CPAN.pm.SOURCE AVAILABILITY
This source is part of a SourceForge project which always has the latest sources in CVS, as well as all of the previous releases.
http://sourceforge.net/projects/brian-d-foy/
If, for some reason, I disappear from the world, one of the other members of the project can shepherd this module appropriately.
CREDITS
Japheth Cleaver added the bits to allow a forced install (-f).Jim Brandt suggest and provided the initial implementation for the up-to-date and Changes features.
Adam Kennedy pointed out that exit() causes problems on Windows where this script ends up with a .bat extension
AUTHOR
brian d foy<EMAIL_ADDRESS>Copyright (c) 2001-2006, brian d foy, All Rights Reserved.You may redistribute this under the same terms as Perl itself.
Index
This document was created by man2html, using the manual pages.
Time: 05:29:02 GMT, December 24, 2015


PROJECT SETUP
How to
The main setup is done in _vars.scss file.
Fonts
Add fonts for project, one for header and one for body, you can
use @font-face or import. Next tweek fonts map to
suit your needs - set font-familly, weights, headers and text
sizes. In the fonts map is ms-base-ratio
variable
witch is use to setup base font size using modular scale and
fluid-type mixin you can use
modular scale to change
it. The last thing is to setup media query sizes for minimum and
maximum where the base font will be calculated between.
Colors
Setting up colors for the project is strait forward just change
colors of the sass variables and you are done. In addition you can
tweek percentage in collors map to setup shades
for interactive
color.
Media queries
In the mq map you are seting up media queries sizes you want to use in the project.
Dimensions
In the dimensions map you are seting up global dimensions for project/components eg. logo width, hamburger icon, form and any value you need to use globaly.
In addition values from color and
dimensions map will be change to css variables
in :root
element as well as calculated base
font.
It's all for the beer minimum - now start
gulp dev
or npm start
and check
design.html to see your changes
If you need to do more changes fell free to do so.  Cupiditate reiciendis, similique, dolorem ea amet aut laborum perspiciatis ipsum minima consequatur nesciunt quo necessitatibus alias aliquam ullam, reprehenderit quae velit laudantium.
text--s Lorem ipsum dolor sit amet consectetur adipisicing elit. Cupiditate reiciendis, similique, dolorem ea amet aut laborum perspiciatis ipsum minima consequatur nesciunt quo necessitatibus alias aliquam ullam, reprehenderit quae velit laudantium.
text--xs Lorem ipsum dolor sit amet consectetur adipisicing elit. Cupiditate reiciendis, similique, dolorem ea amet aut laborum perspiciatis ipsum minima consequatur nesciunt quo necessitatibus alias aliquam ullam, reprehenderit quae velit laudantium.


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Prescription Alternative for Crocin
Waiting confirmation for bill
Additional medicine required
Suggestions
Timestamp: 00:05
Prescriptions from other doctors
Timestamp: 12:03
Increased muscle pain
Timestamp: 09:03


Couple quit jobs, sell house and spend £65,000 on round the world trip with kids
With a job as a stock market trader, Andre Baldeo, 45, was making a good wage and he thought he was happy.
But when he realised he was just trapped in the daily grind, he decided to uproot his whole family and travel the world.
In a bid to show kids, Rico, 12, and Tiana-Mae, ten, there was ‘more to life than suburbia’, he convinced wife Becky, 44, to quit their jobs and sell their house.
They sold their belongings and bought a one-way ticket for an 18-month trip of a lifetime.
They travelled 51,000 miles across 13 countries in South America and Asia, visiting 48 cities, staying in hotels, youth hostels and jungle lodges.
They swapped days at school and work for stints conserving turtles, working on farms and even football coaching, ‘home-schooling’ the kids along the way.
Now back home they are unemployed and living in rented accommodation – but said the £65,000 trip was worth every penny.
Andre, from Enfield, north London, said: ‘It was time for a change and I rehashed one of my life long dreams to Becky – to travel the world and experience as much as we could as a family of four.
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‘It really hit home how we have to make the most of our lives.
‘Working long hours stuck in front of six monitor screens, studying graphs and looking at news can become very lonely and extremely depressing. It became suffocating.
‘It was completely life-changing and incredibly inspiring but it was the scariest thing I’ve ever had to do.
‘We broke down all the security we had at home and gave up everything.
‘I do feel proud to have done it and it is the best £65,000 I have ever spent.
‘We now have the most amazing memories to keep forever and nothing will change that.
‘I gave up our family home and I don’t regret it for a second.
‘It was the trip of a lifetime and coming back home has been very strange. It’s going to take a while for us to get used to normal life again.
‘I know when on my deathbed, I’ll have a head full of amazing experiences and memories and won’t have any regrets to what we sacrificed to make them happen.’
Andre and Becky met in London, where he was working as a trader and Becky as a PA.
They moved to Cape Town in South Africa, where Becky was from in 2007.
Rico and Tiana-Mae came along and the family had a comfortable lifestyle with Andre earning around £35,000 a year.
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But in September 2016, Andre said he realised he was sick of this rut and he started to think about making a change.
He finally decided to change his life when he heard a close friend in the UK who had a brain tumour had been given a matter of weeks to live.
During 18 months of planning, they sold their Cape Town home and put all their belongings into storage.
When they set off, they had no idea how long it would last but they started with a one-way flight to Sarawak, in Borneo, in April 2018.
Andre said they planned their route as they went along, including trips to Thailand, Vietnam and Japan.
‘Another volunteering opportunity arose in Japan, this time for me to dust of my boots and help to coach football at an academy”, said Andre.
‘We lived with a Japanese family who had three small children.
‘Food and board were provided in exchange for our help – me coaching football, and Becky helping around the house.
‘Christmas was spent in Tokyo with an old friend of mine and his family, from my home town Enfield, North London.’
In February the family flew to Colombia and spent five weeks working at a foundation with local children.
After two months they flew to Ecuador for three weeks walking up volcanoes, exploring the Amazon and hiking in the Andes.
The last leg of the journey took the Baldeo’s down the eastern side of South America with visits to Peru, Bolivia and Chile.
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Their last calling point was San Jose, in Costa Rica, where they boarded a plane back home, arriving back in Cape Town on October 29.
The family had an amazing time but Andrew says it wasn’t always easy.
He said: ‘A lot of people think that this way of life is glamorous and essentially a glorified holiday.
‘It is very difficult being together, just the four of us 24/7. No one gets any personal space at all.
‘My guilty pleasure when we packed our rucksacks to come away was my running shoes, so thankfully I got away for some time alone a few times a week.
‘Becky’s guilty pleasure was her hair straighteners – but she has only used them once.
‘To be honest living out of bags, having cold showers, long bus journeys and constantly moving and not having familiar surroundings got draining.
‘But the amazing experiences that we had to cancel out the negatives.
‘We realised we were coming towards the end after about a year and four months.
‘We were getting very tired and planned our way back home.’


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When switching between Ruby and Jaavascript there are a number differences that one encounters. One of these that I would like to highlight is the difference you encounter while iterating over objects
While using ruby there are a number of built in tools to help you iterate over objects but the most common one is the each function. By calling on the object you want to iterate over and then typing .each {|x| thing to do } you can input your code take a look at the first example below. Here the x is the individual element you will be iterating over each time the program runs the each method.
When using Javascript there is a little less flexibility in how one can iterate over arrays. One needs to use a for loop that looks like this for (var i = 0; i ‹ object.length; i++) {}). Inside your curly brackets you will then reference the item you want to iterate over with i as a reference and then the code you want to perform. Take a look at the example below.
While these two different methods will produce the same results there are some clear differences. There is some more built in capacities in Ruby, while in Javascript we have to use for and use the i value as a counter to iterate through each element.


| Booking Ref | First Name | Last Name | Booking Class | Checked in? | Travel Flexi? | Contact |
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| Booking Ref | First Name | Last Name | Booking Class | Checked in? | Travel Flexi? | Contact |
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| Booking Ref | First Name | Last Name | Booking Class | Checked in? | Travel Flexi? | Contact |
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| Booking Ref | First Name | Last Name | Booking Class | Checked in? | Travel Flexi? | Contact |
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C++ Actor Framework 0.19
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Contains all classes and functions for the Binary Actor System Protocol. More...
Classes | |
| struct | header |
| The header of a Binary Actor System Protocol (BASP) message. More... | |
| class | instance |
| Describes a protocol instance managing multiple connections. More... | |
| class | message_queue |
| Enforces strict order of message delivery, i.e., deliver messages in the same order as if they were deserialized by a single thread. More... | |
| class | routing_table |
| Stores routing information for a single broker participating as BASP peer and provides both direct and indirect paths. More... | |
| class | worker |
| Deserializes payloads for BASP messages asynchronously. More... | |
Enumerations | |
| enum | connection_state { await_header , await_payload , close_connection , incompatible_versions , incompatible_application_ids , malformed_basp_message , serializing_basp_payload_failed , redundant_connection , no_route_to_receiving_node } |
| Denotes the state of a connection between two BASP nodes. More... | |
| enum class | message_type : uint8_t { message_type::server_handshake = 0x00 , message_type::client_handshake = 0x01 , message_type::direct_message = 0x02 , message_type::routed_message = 0x03 , message_type::monitor_message = 0x04 , message_type::down_message = 0x05 , message_type::heartbeat = 0x06 } |
| Describes the first header field of a BASP message and determines the interpretation of the other header fields. More... | |
Functions | |
| constexpr bool | requires_shutdown (connection_state x) noexcept |
| Returns whether the connection state requires a shutdown of the socket connection. | |
| sec | to_sec (connection_state x) noexcept |
| Converts the connection state to a system error code if it holds one of the overlapping values. | |
| CAF_IO_EXPORT std::string | to_string (connection_state x) |
| bool | is_handshake (const header &hdr) |
| Checks whether given header contains a handshake. | |
| bool | is_heartbeat (const header &hdr) |
| Checks whether given header contains a heartbeat. | |
| CAF_IO_EXPORT std::string | to_string (message_type) |
| CAF_IO_EXPORT bool | from_string (std::string_view, message_type &) |
| CAF_IO_EXPORT bool | from_integer (std::underlying_type_t< message_type >, message_type &) |
| template<class Inspector > | |
| bool | inspect (Inspector &f, message_type &x) |
Variables | |
| constexpr uint64_t | version = 6 |
| The current BASP version. Note: BASP is not backwards compatible. | |
Contains all classes and functions for the Binary Actor System Protocol.


Conditionals are the most complicated and dynamic way to create a watch face.
They take this form:
$ EQUALITY TEST ? EXPRESSION IF TEST IS TRUE : EXPRESSION IF TEST IS FALSE $
The first space is for our equality test, which is going to equal true or false. There are five types of operators available:
| OPERATOR | DEFINITION | EXAMPLE EXPRESSION | EXAMPLE OUTPUT |
|---|---|---|---|
| = or == | Is equal to | (1=1) or (1==1) | true |
| != | Is not equal to | (1!=0) | true |
| > | Is greater than | (2>1) | true |
| < | Is less than | (0<1) | true |
| >= | Is greater than or equal to | (2>=1) | true |
| <= | Is less than or equal to | (0<=1) | true |
Now let's make our own. We'll fill it in step-by-step. Let's start with a blank slate. All of the those dollar signs and question marks look confusing at first, but you'll get used to them (if you have a programming background, you probably already recognize the ternary operator!):
$____________?_:_$
Now let's fill in that spot with a simple example. We're going to make an expression that will make a layer appear only before noon. This expression would be added to the opacity attribute of the layer. We'll use the #Da# and check if it's "AM":
$#Da#==AM?_:_$
Next, we'll fill in the EXPRESSION IF TRUE part of the conditional. When #Da# == "AM" is true, we want our layer to appear, so we'll want the opacity to be 1:
$#Da#==AM?1:_$
Lastly, we'll fill in the EXPRESSION IF FALSE part of the conditional. When #Da# == "AM" is false, we want our layer to disppear, so we'll want the opacity to be 0:
$#Da#==AM?1:0$
That's it! You just created your first conditional.
Now some advice:
Don't use " marks before and after texts used in conditions.
Don't use spaces (" ") before and after part of conditions (wrong: $ #Da# == AM ? 1 : 0 $
right: $#Da#==AM?1:0$
)


Interleukin-4 inhibits the lipopolysaccharide-induced expression of c-jun and c-fos messenger RNA and activator protein-1 binding activity in human monocytes.
Abstract
We studied the effect of interleukin-4 (IL-4) on the lipopolysaccharide (LPS) induction of two immediate early genes c-fos and c-jun. These genes encode proteins that form the dimeric complex activator protein-1 (AP-1), which is active as a transcriptional factor. Maximal accumulation of either c-fos and c-jun messenger RNA (mRNA) occurred 30 minutes after LPS addition. When cells were treated with IL-4 for 5 hours before LPS activation, both the c-fos and the c-jun mRNA expression was decreased. The inhibition of c-fos and c-jun expression by IL-4 in LPS-treated cells was shown to be due to a lower transcription rate of the c-fos and c-jun genes. IL-4 did not affect the stability of the c-fos and c-jun transcripts. Finally, using electrophoretic mobility shift assays, evidence was obtained that IL-4 inhibits LPS-induced expression of AP-1 protein. These data indicate that IL-4 suppresses the induction of transcription factors in human activated monocytes.


{% extends "base.html" %} {% load staticfiles %} {% block body_attr %} class="dark-blue-bg"{% endblock %} {% block 'nav-1' %}
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| server | version | uptime | time | connections current |
connections total |
items current |
items total |
set | get | peek | hits | misses | read | write |
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| queue | server | logsize |
items total |
items expired |
items waiting |
items (mem) |
size total |
size (mem) |
age | waiters | req/s |
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The goal of jaysire is to provide a method for writing behavioural experiments in R that can be deployed through a web browser. The package relies on the jsPsych library by Josh de Leeuw (GitHub page) to create the experiments, and is structured so that functions in jaysire use the same argument names as the corresponding jsPsych functions. For the most part, function names in jaysire are organised around families that share a common prefix. For example, the trial_
family is used to define individual trials within an experiment, build_
functions construct more complex entities, and so on. See the reference page for the complete list of all functions.
The jaysire package has not been released on CRAN, but you can install it directly from GitHub using the following commands:
#install.packages("remotes")
remotes::install_github("djnavarro/jaysire")


Adrienne is Software Engineer at Fitbit. She promises that she usually writes better code than this. Her ideal qualities in a mentor would be someone who is a patient listener, appreciates functional programming and doesn't judge her by her Spotify playlists (specifically the one with mostly Nelly and Ja Rule).
Katy is a textbook example of an entry-level employee concerned about the prospects of finding a mentor she'd be comfortable working with. While she's got a lot of promise, she's in dire need of some support and guidance to reach her true potential and make a meaningful impact in her community
Kelsey is an world-famous hula hooper who works in technology during the day and hula hoops at night. She wants to give back to the community because she sees herself in this new generation of techies and wants to help empower all genders to change the world.