[rabbitmq-discuss] JNDI / .bindings with RabbitMQ JMS Client?
Jason McIntosh
mcintoshj at gmail.com
Mon May 19 15:29:17 BST 2014
Off hand, it appears that you're missing some libraries. I'm not sure what
rabbitmqjms.jar is as I've not looked at the JMS stuff personally but
you're missing whatever library provides "com.rabbitmq.jms.admin.
RMQConnectionFactory". What's interesting is that it's in the same class
structure as the instance loader (the RMQObjectFactory) - so I'd guess
there could be an issue someplace with URL class loading or similar. If
the ObjectFactory and ConnectionFactory are with-in the same jar you
shouldn't be getting this, but if they're in a different jar file you'll
very likely have issues. Java doesn't support loading JAR files from
with-in a JAR file for dependencies.
Jason
On Sat, May 17, 2014 at 6:40 PM, scguy <npetrace at gmail.com> wrote:
> Question...I'm trying to use the RabbitMQ JMS client with an existing JMS
> client application.
>
> I have written a sample java program, and am referencing a .bindings file
> (below). I have the following plugins installed on my RabbitMQ server
> (this
> is on Windows):
>
> C:\dev\rabbitmq330\rabbit\sbin>rabbitmq-plugins list
> [e] amqp_client 3.3.0
> [ ] cowboy 0.5.0-rmq3.3.0-git4b93c2d
> [ ] eldap 3.3.0-gite309de4
> [e] mochiweb 2.7.0-rmq3.3.0-git680dba8
> [ ] rabbitmq_amqp1_0 3.3.0
> [ ] rabbitmq_auth_backend_ldap 3.3.0
> [ ] rabbitmq_auth_mechanism_ssl 3.3.0
> [ ] rabbitmq_consistent_hash_exchange 3.3.0
> [ ] rabbitmq_federation 3.3.0
> [ ] rabbitmq_federation_management 3.3.0
> [E] rabbitmq_jms_topic_exchange 1.2.0-rmq3.3.0
> [e] rabbitmq_jsonrpc 3.3.x-24fb08eb
> [E] rabbitmq_jsonrpc_channel 3.3.x-40bdb08c
> [E] rabbitmq_management 3.3.0
> [e] rabbitmq_management_agent 3.3.0
> [E] rabbitmq_management_visualiser 3.3.0
> [ ] rabbitmq_mqtt 3.3.0
> [ ] rabbitmq_shovel 3.3.0
> [ ] rabbitmq_shovel_management 3.3.0
> [E] rabbitmq_stomp 3.3.0
> [ ] rabbitmq_tracing 3.3.0
> [e] rabbitmq_web_dispatch 3.3.0
> [ ] rabbitmq_web_stomp 3.3.0
> [ ] rabbitmq_web_stomp_examples 3.3.0
> [e] rfc4627_jsonrpc 3.3.x-git5e67120
> [ ] sockjs 0.3.4-rmq3.3.0-git3132eb9
> [e] webmachine 1.10.3-rmq3.3.0-gite9359c7
>
> I have the following on my classpath:
>
> <?xml version="1.0" encoding="UTF-8"?>
> <classpath>
> <classpathentry kind="src" path="src"/>
> <classpathentry kind="con"
>
> path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/jdk1.7.0_25"/>
> <classpathentry kind="lib"
>
> path="C:/dev/rabbitmq330/jms-package1.2.0/dependencies/amqp-client-3.3.0.jar"/>
> <classpathentry kind="lib"
> path="C:/dev/rabbitmq330/jms-package1.2.0/dependencies/fscontext.jar"/>
> <classpathentry kind="lib"
>
> path="C:/dev/rabbitmq330/jms-package1.2.0/dependencies/geronimo-jms_1.1_spec-1.1.1.jar"/>
> <classpathentry kind="lib"
> path="C:/dev/rabbitmq330/jms-package1.2.0/dependencies/providerutil.jar"/>
> <classpathentry kind="lib"
>
> path="C:/dev/rabbitmq330/jms-package1.2.0/dependencies/slf4j-api-1.7.5.jar"/>
> <classpathentry kind="lib"
> path="C:/dev/rabbitmq330/jms-package1.2.0/rabbitmq-jms-1.2.0.jar"/>
> <classpathentry kind="output" path="bin"/>
> </classpath>
>
> However, when I attempt to run my java program, I get the following error.
> This is where I am stuck...I'm not sure what is wrong...as the mentioned
> class is in the rabbitmq-jms-1.2.0.jar file, and that jar is on my
> classpath. Any thoughts on what I have done wrong? I need to use the JMS
> client...otherwise I would just use the AMQP library.
>
> Code snippet (the error occurs on the connection factory lookup):
>
> Hashtable<String, String> env = new Hashtable<String, String>();
> env.put(Context.INITIAL_CONTEXT_FACTORY,
> "com.sun.jndi.fscontext.RefFSContextFactory");
> env.put(Context.PROVIDER_URL, "file:/rabbitmq"); // directory where the
> .bindings file is located
>
> mContext = new InitialContext(env);
>
> ConnectionFactory connectionFactory = (ConnectionFactory)
> mContext.lookup("ConnectionFactory");
> mConnection = connectionFactory.createConnection();
> mConnection.start();
>
> .bindings file:
>
> ConnectionFactory/ClassName=com.rabbitmq.jms.admin.RMQConnectionFactory
> ConnectionFactory/FactoryName=com.rabbitmq.jms.admin.RMQObjectFactory
>
> ConnectionFactory/RefAddr/0/Content=jms/ConnectionFactory
> ConnectionFactory/RefAddr/0/Type=name
> ConnectionFactory/RefAddr/0/Encoding=String
>
> ConnectionFactory/RefAddr/1/Content=javax.jms.ConnectionFactory
> ConnectionFactory/RefAddr/1/Type=type
> ConnectionFactory/RefAddr/1/Encoding=String
>
> ConnectionFactory/RefAddr/2/Content=com.rabbitmq.jms.admin.RMQObjectFactory
> ConnectionFactory/RefAddr/2/Type=factory
> ConnectionFactory/RefAddr/2/Encoding=String
>
> # Change this line accordingly if the broker is not at localhost
> ConnectionFactory/RefAddr/3/Content=localhost
> ConnectionFactory/RefAddr/3/Type=host
> ConnectionFactory/RefAddr/3/Encoding=String
>
> #Destinations
> TempQueue/ClassName=com.rabbitmq.jms.admin.RMQDestination
> TempQueue/FactoryName=com.rabbitmq.jms.admin.RMQObjectFactory
>
> TempQueue/RefAddr/0/Content=jms/Queue
> TempQueue/RefAddr/0/Type=name
> TempQueue/RefAddr/0/Encoding=String
>
> TempQueue/RefAddr/1/Content=javax.jms.Queue
> TempQueue/RefAddr/1/Type=type
> TempQueue/RefAddr/1/Encoding=String
>
> TempQueue/RefAddr/2/Content=com.rabbitmq.jms.admin.RMQObjectFactory
> TempQueue/RefAddr/2/Type=factory
> TempQueue/RefAddr/2/Encoding=String
>
> TempQueue/RefAddr/3/Content=TempQueue
> TempQueue/RefAddr/3/Type=destinationName
> TempQueue/RefAddr/3/Encoding=String
>
> C:\TEMP>java -jar rabbitmqjms.jar
> SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
> SLF4J: Defaulting to no-operation (NOP) logger implementation
> SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further
> details.
> Exception in thread "main" java.lang.reflect.InvocationTargetException
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
>
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> at
>
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:606)
> at
>
> org.eclipse.jdt.internal.jarinjarloader.JarRsrcLoader.main(JarRsrcLoader.java:58)
> Caused by: javax.naming.NamingException: Unknown class
> [com.rabbitmq.jms.admin.RMQConnectionFactory]
> at
>
> com.rabbitmq.jms.admin.RMQObjectFactory.getObjectInstance(RMQObjectFactory.java:132)
> at
> javax.naming.spi.NamingManager.getObjectInstance(NamingManager.java:321)
> at
> com.sun.jndi.fscontext.RefFSContext.lookup(RefFSContext.java:146)
> at com.sun.jndi.fscontext.FSContext.lookup(FSContext.java:127)
> at javax.naming.InitialContext.lookup(InitialContext.java:411)
> at rabbitMQJMSTestDriver.<init>(rabbitMQJMSTestDriver.java:31)
> at rabbitMQJMSTestDriver.main(rabbitMQJMSTestDriver.java:107)
> ... 5 more
>
>
>
> --
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--
Jason McIntosh
https://github.com/jasonmcintosh/
573-424-7612
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