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Interceptor issue
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created by <a href="https://community.jboss.org/people/sri2">sri2</a> in <i>Beginner's Corner</i> - <a href="https://community.jboss.org/message/820493#820493">View the full discussion</a>
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<div class="jive-rendered-content"><p>Hi,</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I created an interceptor extending from <strong>BasicCustomInterceptor </strong>implementing with <strong>MBean </strong>with simple methods.</p><p>Initialized/Uninitiazed in <strong>start </strong>and <strong>stop </strong>overrided methods. It accesses these methods when creating and destroying bean.</p><p>Somehow it has <strong>not </strong>accessed to<strong> visitDistributedExecuteCommand</strong> override method where my logic reside to compute something in distributed mode with numOwners=2. If I override other methods like <strong>visitPutKeyValueCommand </strong>then it accesses.</p><p>To find the issue, I added some couple of methods by putting print out statement along <strong>return invokeNextInterceptor(ctx, command)</strong> Just for testing purpose. These methods are : </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>1)//Not Accessed</p><p>@Override</p><p>    public Object visitSizeCommand(InvocationContext ctx, SizeCommand command)  throws Throwable {</p><p>        </p><p>        System.out.println("Inside visitSizeCommand");</p><p>        return invokeNextInterceptor(ctx, command);        </p><p>    }</p><p>2) //Not Accessed</p><p>@Override</p><p>public void visitCollection(InvocationContext ctx,  Collection<? extends VisitableCommand> toVisit) throws Throwable {</p><p>        System.out.println("Inside visitCollection");</p><p>//        debug("Collection Size: " + toVisit.size() );</p><p> }</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>3) //Not Accessed</p><p>@Override</p><p>public  <V> Object visitDistributedExecuteCommand(InvocationContext ctx, DistributedExecuteCommand<V> command) throws Throwable {</p><p>        System.out.println("++++++++++++Inside visitDistributedExecuteCommand()");</p><p>        Object o = invokeNextInterceptor(ctx, command);</p><p>        // Some logic here</p><p>        return o;</p><p>    }</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>4) // Accessed</p><p>@Override</p><p>       public Object visitPutKeyValueCommand(InvocationContext ctx, PutKeyValueCommand cmd) throws Throwable {</p><p>          System.out.println("Ignoring this call to enforce read-only behavior");</p><p>          return invokeNextInterceptor(ctx, cmd);</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>       }</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>5) // Accessed</p><p> @Override</p><p>       visitRemoveCommand(InvocationContext ctx, RemoveCommand cmd) throws Throwable {</p><p>          System.out.println("Visited::::visitRemoveCommand");</p><p>         return invokeNextInterceptor(ctx, cmd);</p><p>       }</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I'm using 5.3.0.Beta1 version with JDK 1.7.0_04. Interceptor added in config file. Testing with PiApproximationDemo and also with SimpleCache ( book, pay and list ) Infinispan book example.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Please advice how do I make it access to <strong>visitDistributedExecuteCommand </strong>override method. </p><p>And also advice how do I access to individual statistics from each node in distributed environment and show it on RHQ monitor/JConsole/JVisualVM by using MBeans or MXBeans.<strong><br/> </strong></p><p><span>Do I have to write a plug in for RHQ? Or Do I have to write purely JMX code? I have to see each node info in addition to  these statistics from URL </span><a class="jive-link-external-small" href="http://docs.jboss.org/infinispan/5.1/apidocs/jmxComponents.html#Statistics" target="_blank">http://docs.jboss.org/infinispan/5.1/apidocs/jmxComponents.html#Statistics</a><span>.</span></p><p>Any input and code examples are appreciated. Thanks in Advance. </p><p>Sri</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Partial Config file:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>    <global></p><p>           <transport>         </p><p>            <properties>             </p><p>            <property name="configurationFile" value="jgroups.xml"/></p><p>            </properties>       </p><p>        </transport></p><p>    </global>  </p><p>   <default>      </p><p>       <clustering mode="distribution">       </p><p>       <sync/>       </p><p>       <hash numOwners="2"/>    </p><p>      </clustering> </p><p>  </p><p>      <customInterceptors></p><p>         <interceptor class="com.xxx.xxx.TestInterceptor" position="FIRST" /></p><p>      </customInterceptors>      </p><p>   </default></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><strong>Output from SimpleCache Example:</strong></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>May 30, 2013 3:31:11 PM org.infinispan.remoting.transport.jgroups.JGroupsTransport start</p><p>INFO: ISPN000078: Starting JGroups Channel</p><p>May 30, 2013 3:31:11 PM org.jgroups.logging.JDKLogImpl warn</p><p>WARNING: [JGRP00014] TP.discard_incompatible_packets has been deprecated: incompatible packets are discarded anyway</p><p>May 30, 2013 3:31:11 PM org.jgroups.logging.JDKLogImpl warn</p><p>WARNING: [JGRP00014] TP.enable_bundling has been deprecated: will be ignored as bundling is on by default</p><p>May 30, 2013 3:31:11 PM org.jgroups.logging.JDKLogImpl warn</p><p>WARNING: [JGRP00014] UNICAST.setTimeout has been deprecated: not used anymore</p><p>May 30, 2013 3:31:14 PM org.infinispan.remoting.transport.jgroups.JGroupsTransport viewAccepted</p><p>INFO: ISPN000094: Received new cluster view: [xxxx]</p><p>May 30, 2013 3:31:14 PM org.infinispan.remoting.transport.jgroups.JGroupsTransport startJGroupsChannelIfNeeded</p><p>INFO: ISPN000079: Cache local address is xxxx, physical addresses are [xxx]</p><p>May 30, 2013 3:31:14 PM org.infinispan.factories.GlobalComponentRegistry start</p><p>INFO: ISPN000128: Infinispan version: Infinispan 'Tactical Nuclear Penguin' 5.3.0.Beta1</p><p>*************registering MBean: com.xxx.xxx:type=TestInterceptor</p><p>********* Printing Interceptors from interceptorChain</p><p>********* Interceptor name: com.xxx.xxx.TestInterceptor</p><p>********* Interceptor name: org.infinispan.interceptors.InvocationContextInterceptor</p><p>********* Interceptor name: org.infinispan.statetransfer.StateTransferInterceptor</p><p>********* Interceptor name: org.infinispan.statetransfer.TransactionSynchronizerInterceptor</p><p>********* Interceptor name: org.infinispan.interceptors.NotificationInterceptor</p><p>********* Interceptor name: org.infinispan.interceptors.locking.NonTransactionalLockingInterceptor</p><p>********* Interceptor name: org.infinispan.interceptors.EntryWrappingInterceptor</p><p>********* Interceptor name: org.infinispan.interceptors.distribution.NonTxConcurrentDistributionInterceptor</p><p>********* Interceptor name: org.infinispan.interceptors.CallInterceptor</p><p>May 30, 2013 3:31:14 PM org.infinispan.jmx.CacheJmxRegistration start</p><p>INFO: ISPN000031: MBeans were successfully registered to the platform MBean server.</p><p>Ticket booking system</p><p>=====================</p><p>Commands: book, pay, list</p><p>> book</p><p>Enter name aaa</p><p>Enter show 111</p><p>Visited::::visitPutKeyValueCommand </p><p>Booked ticket Ticket{name='aaa', show='111'}</p><p>> book</p><p>Enter name bbb</p><p>Enter show 222</p><p>Visited::::visitPutKeyValueCommand </p><p>Booked ticket Ticket{name='bbb', show='222'}</p><p>> list</p><p>Ticket{name='aaa', show='111'}</p><p>Ticket{name='bbb', show='222'}</p><p>> pay</p><p>Enter ticketid 1</p><p>Visited::::visitRemoveCommand </p><p>Checked out ticket Ticket{name='aaa', show='111'}</p><p>></p></div>
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