Google CCS Server implementation

[amits]

I took the first shot at implementing the new GCM CCS server on Google App Engine using the Smack library for XMPP. 

https://developer.android.com/google/gcm/ccs.html

However, I get below exceptions and could not find a way to resolve it. I do have smack.jar in WEB-INF/lib directory. Has anyone else tried it out and know how to resolve this?

[s~mighty-app/0-58.369479717923256319].<stderr>: Error! A startup class specified in smack-config.xml could not be loaded: org.jivesoftware.smackx.LastActivityManager

[s~mighty-app/0-58.369479717923256319].<stderr>: Error! A startup class specified in smack-config.xml could not be loaded: org.jivesoftware.smackx.commands.AdHocCommandManager

Error for /client
java.lang.NoClassDefFoundError: javax.naming.InitialContext is a restricted class. Please see the Google App Engine developer's guide for more details.
	at com.google.appengine.runtime.Request.process-0046d50b9de5cb22(Request.java)
	at javax.naming.InitialContext.<clinit>(InitialContext.java)
	at org.jivesoftware.smack.util.dns.JavaxResolver.<clinit>(JavaxResolver.java:45)
	at java.lang.Class.forName0(Native Method)
	at java.lang.Class.forName(Class.java:111)
	at org.jivesoftware.smack.SmackConfiguration.parseClassToLoad(SmackConfiguration.java:335)
	at org.jivesoftware.smack.SmackConfiguration.<clinit>(SmackConfiguration.java:95)
	at org.jivesoftware.smack.Connection.<clinit>(Connection.java:125)
	at org.jivesoftware.smack.ConnectionConfiguration.<init>(ConnectionConfiguration.java:78)
	at com.xmpp.test.GcmXmppSender.connect(GcmXmppSender.java:243)

...

[Costin Manolache]

I don't think Smack works on appengine - it may try to remove the Adhoc command manager, or change the implementation to not use JNDI - but you'll still need to be able to open a socket, and I don't think that's enabled.

Costin

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[amits]

Thanks Costin. There is a way to open a socket from GAE using open socket API - https://developers.google.com/appengine/docs/python/sockets/overview

Is there a sample/library which implements CCS server using GAE (& open socket API)?

[AsafK]

Im having the same issue. For the first errors regarding smackx classes i also copied smakx.jar to WEB-INF/lib. but i still have NoClassDefFoundError because of GAE sandbox restrictions.

Appreciate if someone could help here.

[Devwrat Lad]

still App engine doesn't support java smack library ?