RHIoT Webcam and websocket components on MacbookPro in Groovy

Yesterday, we’ve played with our MacBook Pro’s webcam. Today, we gonna see how to send images through a websocket directly in this page !!! or via a JavaFx program. We gonna re-use the previous post and integrate camel Websocket component. Let’s play with Groovy language …

Webcam image to Websocket w/ Rhiot & Camel projects on MacbookPro

Let’s start to broadcast yourself.

Requisites

  • Have a mac
  • tested MacBook Pro Retina, 13-inch, Mid 2014
  • Groovy Mac port installed
  • Groovy Version: 2.4.4 JVM: 1.8.0_45 Vendor: Oracle Corporation OS: Mac OS X

Program

We gonna re-use our previous Groovy language program an we will change some stuff

The key point of this program are :

  • the @Grab annotation to download camel-websocket component : @Grab(group=”org.apache.camel”,module=”camel-websocket”,version=”2.16.0”)
  • the to command to capture image every second : “websocket://localhost:8080/camel-webcam?sendToAll=true”

Copy log4j.properties into the same directory

In our case we need to develop a HTML page to receive broadcasted img.

you can also use the next Javafx program to broadcast yourself.

Execution

Let’s run it now

[mbp:~/Source/tmp/io/rhiot/test]$> groovy  WebcamToWebSocket.groovy
[                          main] MainSupport                    INFO  Apache Camel 2.16.0 starting
[                          main] DefaultCamelContext            INFO  Apache Camel 2.16.0 (CamelContext: camel-1) is starting
[                          main] ManagedManagementStrategy      INFO  JMX is enabled
[                          main] DefaultTypeConverter           INFO  Loaded 182 type converters
[                          main] DefaultRuntimeEndpointRegistry INFO  Runtime endpoint registry is in extended mode gathering usage statistics of all incoming and outgoing endpoints (cache limit: 1000)
[                          main] WebcamEndpoint                 WARN  Driver not supported
[                          main] Webcam                         INFO  WebcamDefaultDriver capture driver will be used
[            atomic-processor-1] WebcamOpenTask                 INFO  Opening webcam FaceTime HD Camera CC242951XGLF6VVD4
[                          main] DefaultCamelContext            INFO  AllowUseOriginalMessage is enabled. If access to the original message is not needed, then its recommended to turn this option off as it may improve performance.
[                          main] DefaultCamelContext            INFO  StreamCaching is not in use. If using streams then its recommended to enable stream caching. See more details at http://camel.apache.org/stream-caching.html
[                          main] WebsocketComponent             INFO  Jetty Server starting on host: localhost:8080
[                          main] Server                         INFO  jetty-8.1.17.v20150415
[                          main] AbstractConnector              INFO  Started SelectChannelConnector@localhost:8080
[                          main] DefaultCamelContext            INFO  Route: route1 started and consuming from: Endpoint[webcam://cam?consumer.delay=100]
[                          main] DefaultCamelContext            INFO  Total 1 routes, of which 1 is started.
[                          main] DefaultCamelContext            INFO  Apache Camel 2.16.0 (CamelContext: camel-1) started in 2.019 seconds
[                          main] MainSupport                    INFO  Waiting for: 60 SECONDS
[el-1) thread #0 - webcam://cam] camel                          INFO  Exchange[Id: ID-mbp-g-a-net-57437-1445524143378-0-2, ExchangePattern: OutOnly, BodyType: byte[]]
[el-1) thread #0 - webcam://cam] camel                          INFO  Exchange[Id: ID-mbp-g-a-net-57437-1445524143378-0-4, ExchangePattern: OutOnly, BodyType: byte[]]
[el-1) thread #0 - webcam://cam] camel                          INFO  Exchange[Id: ID-mbp-g-a-net-57437-1445524143378-0-6, ExchangePattern: OutOnly, BodyType: byte[]]

 ........................... OMIT ...........................


OutOnly, BodyType: byte[]]
[el-1) thread #0 - webcam://cam] camel                          INFO  Exchange[Id: ID-mbp-g-a-net-57437-1445524143378-0-44, ExchangePattern: OutOnly, BodyType: byte[]]
[el-1) thread #0 - webcam://cam] camel                          INFO  Exchange[Id: ID-mbp-g-a-net-57437-1445524143378-0-46, ExchangePattern: OutOnly, BodyType: byte[]]
^C[                      Thread-1] MainSupport$HangupInterceptor  INFO  Received hang up - stopping the main instance.
[                      Thread-1] MainSupport                    INFO  Apache Camel 2.16.0 stopping
[               shutdown-hook-1] WebcamShutdownHook             INFO  Automatic FaceTime HD Camera CC242951XGLF6VVD4 deallocation
[                      Thread-1] DefaultCamelContext            INFO  Apache Camel 2.16.0 (CamelContext: camel-1) is shutting down
[               shutdown-hook-1] Webcam                         INFO  Disposing webcam FaceTime HD Camera CC242951XGLF6VVD4
[                      Thread-1] DefaultShutdownStrategy        INFO  Starting to graceful shutdown 1 routes (timeout 300 seconds)
[el-1) thread #1 - ShutdownTask] ContextHandler                 INFO  stopped o.e.j.s.ServletContextHandler{/,null}
[el-1) thread #1 - ShutdownTask] DefaultShutdownStrategy        INFO  Route: route1 shutdown complete, was consuming from: Endpoint[webcam://cam?consumer.delay=100]
[                      Thread-1] DefaultShutdownStrategy        INFO  Graceful shutdown of 1 routes completed in 0 seconds
[                      Thread-1] DefaultCamelContext            INFO  Apache Camel 2.16.0 (CamelContext: camel-1) uptime 48.953 seconds
[                      Thread-1] DefaultCamelContext            INFO  Apache Camel 2.16.0 (CamelContext: camel-1) is shutdown in 0.101 seconds

And the result

I propose to you four possibilities for the demo :

  • start groovy program above on your own laptop and use the live demo just below
  • start groovy program above on your own laptop and download WebcamToWebSocket.html for an offline use
  • start groovy program above on your own laptop and run WebcamToWebSocketJavafx.java program
  • or just play YouTube video(s) below

Live Demo

No connection


HTML 5 / YouTube Demo


JavaFx / YouTube Demo


Conclusion

As you can see Rhiot project and contributors are awesome, the IoT movement provides lot of interesting ideas we can implement really easily almost out-of-the box. On more time, I would like thanks a lot Taariq Levack for this so cool component ;-). Next step is to implement this demo into a RaspberryPi.

Stay tuned !!!

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