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androidandroid-emulatorwebsocketnettyatmosphere

android websocket connection timeout with wAsync (atmosphere)

I previously wrote a Java SE client based on wAsync. It works rock-solid with version 1.0.RC1 connected to Atmosphere 1.1.RC1. I followed this example from Jeanfrancois to accomplish this task

Everything works, JSON encoding, subscribing, broadcasting and sending a POST to a URI. Good so far.

However, putting this example to Android would raise a timeout exception when trying to subscribe to a resource. As you can see in the log, I wanted to open a socket on 

http://localhost:8080/resource/playerpool

Again, this worked fine on the Java SE 6 client.

Anyone has a clue why this would run into a timeout on the Android emulator while being the exact code from the Java SE client?

I did set the permission in the AndroidManifest.xml

<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>

Below the Android log, when trying to open the connection on the socket. 

04-24 06:27:41.043: W/System.err(1512): java.net.ConnectException: connection timed out to ws://localhost:8080/resource/playerpool?X-Atmosphere-Transport=long-polling&X-atmo-protocol=true&X-Atmosphere-tracking-id=0&X-Atmosphere-Framework=1.0&X-Cache-Date=0
04-24 06:27:41.051: W/System.err(1512):     at com.ning.http.client.providers.netty.NettyConnectListener.operationComplete(NettyConnectListener.java:103)
04-24 06:27:41.051: W/System.err(1512):     at org.jboss.netty.channel.DefaultChannelFuture.notifyListener(DefaultChannelFuture.java:427)
04-24 06:27:41.051: W/System.err(1512):     at org.jboss.netty.channel.DefaultChannelFuture.notifyListeners(DefaultChannelFuture.java:418)
04-24 06:27:41.051: W/System.err(1512):     at org.jboss.netty.channel.DefaultChannelFuture.setFailure(DefaultChannelFuture.java:380)
04-24 06:27:41.051: W/System.err(1512):     at org.jboss.netty.channel.socket.nio.NioClientBoss.processConnectTimeout(NioClientBoss.java:139)
04-24 06:27:41.051: W/System.err(1512):     at org.jboss.netty.channel.socket.nio.NioClientBoss.process(NioClientBoss.java:82)
04-24 06:27:41.051: W/System.err(1512):     at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:312)
04-24 06:27:41.051: W/System.err(1512):     at org.jboss.netty.channel.socket.nio.NioClientBoss.run(NioClientBoss.java:41)
04-24 06:27:41.051: W/System.err(1512):     at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
04-24 06:27:41.051: W/System.err(1512):     at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
04-24 06:27:41.051: W/System.err(1512):     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1076)
04-24 06:27:41.051: W/System.err(1512):     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:569)
04-24 06:27:41.051: W/System.err(1512):     at java.lang.Thread.run(Thread.java:856)
04-24 06:27:41.051: W/System.err(1512): Caused by: java.net.ConnectException: connection timed out
04-24 06:27:41.051: W/System.err(1512):     at org.jboss.netty.channel.socket.nio.NioClientBoss.processConnectTimeout(NioClientBoss.java:136)
04-24 06:27:41.051: W/System.err(1512):     ... 8 more
04-24 06:27:41.063: W/System.err(1512): java.util.concurrent.ExecutionException: java.net.ConnectException: connection timed out to ws://localhost:8080/rest-group-e/playerpool?X-Atmosphere-Transport=long-polling&X-atmo-protocol=true&X-Atmosphere-tracking-id=0&X-Atmosphere-Framework=1.0&X-Cache-Date=0
04-24 06:27:41.063: W/System.err(1512):     at com.ning.http.client.providers.netty.NettyResponseFuture.abort(NettyResponseFuture.java:327)
04-24 06:27:41.063: W/System.err(1512):     at com.ning.http.client.providers.netty.NettyConnectListener.operationComplete(NettyConnectListener.java:107)
04-24 06:27:41.063: W/System.err(1512):     at org.jboss.netty.channel.DefaultChannelFuture.notifyListener(DefaultChannelFuture.java:427)
04-24 06:27:41.074: W/System.err(1512):     at org.jboss.netty.channel.DefaultChannelFuture.notifyListeners(DefaultChannelFuture.java:418)
04-24 06:27:41.074: W/System.err(1512):     at org.jboss.netty.channel.DefaultChannelFuture.setFailure(DefaultChannelFuture.java:380)
04-24 06:27:41.074: W/System.err(1512):     at org.jboss.netty.channel.socket.nio.NioClientBoss.processConnectTimeout(NioClientBoss.java:139)
04-24 06:27:41.074: W/System.err(1512):     at org.jboss.netty.channel.socket.nio.NioClientBoss.process(NioClientBoss.java:82)
04-24 06:27:41.074: W/System.err(1512):     at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:312)
04-24 06:27:41.074: W/System.err(1512):     at org.jboss.netty.channel.socket.nio.NioClientBoss.run(NioClientBoss.java:41)
04-24 06:27:41.074: W/System.err(1512):     at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
04-24 06:27:41.083: W/System.err(1512):     at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
04-24 06:27:41.083: W/System.err(1512):     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1076)
04-24 06:27:41.083: W/System.err(1512):     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:569)
04-24 06:27:41.083: W/System.err(1512):     at java.lang.Thread.run(Thread.java:856)
04-24 06:27:41.083: W/System.err(1512): Caused by: java.net.ConnectException: connection timed out to ws://localhost:8080/rest-group-e/playerpool?X-Atmosphere-Transport=long-polling&X-atmo-protocol=true&X-Atmosphere-tracking-id=0&X-Atmosphere-Framework=1.0&X-Cache-Date=0
04-24 06:27:41.083: W/System.err(1512):     at com.ning.http.client.providers.netty.NettyConnectListener.operationComplete(NettyConnectListener.java:103)
04-24 06:27:41.083: W/System.err(1512):     ... 12 more
04-24 06:27:41.083: W/System.err(1512): Caused by: java.net.ConnectException: connection timed out
04-24 06:27:41.083: W/System.err(1512):     at org.jboss.netty.channel.socket.nio.NioClientBoss.processConnectTimeout(NioClientBoss.java:136)
04-24 06:27:41.083: W/System.err(1512):     at org.jboss.netty.channel.socket.nio.NioClientBoss.process(NioClientBoss.java:82)
04-24 06:27:41.083: W/System.err(1512):     at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:312)
04-24 06:27:41.083: W/System.err(1512):     at org.jboss.netty.channel.socket.nio.NioClientBoss.run(NioClientBoss.java:41)
04-24 06:27:41.083: W/System.err(1512):     ... 3 more
Solution

  • http://localhost:8080/resource/playerpool

    In the Android emulator/device, this URL will try to connect to an HTTP server running on the emulator/device itself, which probably doesn't exist unless you've another Android app acting as a HTTP server running on it.

    Is your web service running on the host machine of the emulator? Try replacing localhost with 10.0.2.2. In the emulator this IP refers to your host machine according to Android Emulator documentation