JRMPInvokerHApublic class JRMPInvokerHA extends JRMPInvoker implements org.jboss.invocation.InvokerHA| The JRMPInvokerHA is an HA-RMI implementation that can generate Invocations from RMI/JRMP
into the JMX base |
| Fields Summary |
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| protected HashMap | beanMap |
| Constructors Summary |
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public JRMPInvokerHA()Explicit no-args constructor.
super();
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| Methods Summary |
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| public org.jboss.invocation.Invoker | createProxy(javax.management.ObjectName beanName, org.jboss.ha.framework.interfaces.LoadBalancePolicy policy, java.lang.String proxyFamilyName)
Integer hash = new Integer(beanName.hashCode());
HATarget target = (HATarget) beanMap.get(hash);
if (target == null)
{
throw new IllegalStateException("The bean hashCode not found");
}
String familyName = proxyFamilyName;
if (familyName == null)
familyName= target.getAssociatedPartition().getPartitionName() + "/" + beanName;
JRMPInvokerProxyHA proxy = new JRMPInvokerProxyHA(target.getReplicants(),
policy,
familyName,
target.getCurrentViewId ());
return proxy;
| | public java.lang.Object | invoke(org.jboss.invocation.Invocation invocation)Invoke a Remote interface method.
ClassLoader oldCl = Thread.currentThread().getContextClassLoader();
try
{
// Deserialize the transaction if it is there
invocation.setTransaction(importTPC(((MarshalledInvocation) invocation).getTransactionPropagationContext()));
// Extract the ObjectName, the rest is still marshalled
ObjectName mbean = (ObjectName) Registry.lookup(invocation.getObjectName());
long clientViewId = ((Long)invocation.getValue("CLUSTER_VIEW_ID")).longValue();
HATarget target = (HATarget)beanMap.get(invocation.getObjectName());
if (target == null)
{
// We could throw IllegalStateException but we have a race condition that could occur:
// when we undeploy a bean, the cluster takes some time to converge
// and to recalculate a new viewId and list of replicant for each HATarget.
// Consequently, a client could own an up-to-date list of the replicants
// (before the cluster has converged) and try to perform an invocation
// on this node where the HATarget no more exist, thus receiving a
// wrong exception and no failover is performed with an IllegalStateException
//
throw new GenericClusteringException(GenericClusteringException.COMPLETED_NO,
"target is not/no more registered on this node");
}
if (!target.invocationsAllowed ())
throw new GenericClusteringException(GenericClusteringException.COMPLETED_NO,
"invocations are currently not allowed on this target");
// The cl on the thread should be set in another interceptor
Object rtn = support.getServer().invoke(mbean,
"invoke",
new Object[] { invocation },
Invocation.INVOKE_SIGNATURE);
HARMIResponse rsp = new HARMIResponse();
if (clientViewId != target.getCurrentViewId())
{
rsp.newReplicants = new ArrayList(target.getReplicants());
rsp.currentViewId = target.getCurrentViewId();
}
rsp.response = rtn;
return new MarshalledObject(rsp);
}
catch (InstanceNotFoundException e)
{
throw new GenericClusteringException(GenericClusteringException.COMPLETED_NO, e);
}
catch (ReflectionException e)
{
throw new GenericClusteringException(GenericClusteringException.COMPLETED_NO, e);
}
catch (Exception e)
{
org.jboss.mx.util.JMXExceptionDecoder.rethrow(e);
// the compiler does not know an exception is thrown by the above
throw new org.jboss.util.UnreachableStatementException();
}
finally
{
Thread.currentThread().setContextClassLoader(oldCl);
}
| | public void | registerBean(javax.management.ObjectName beanName, org.jboss.ha.framework.server.HATarget target)
Integer hash = new Integer(beanName.hashCode());
log.debug("registerBean: "+beanName);
if (beanMap.containsKey(hash))
{
// FIXME [oleg] In theory this is possible!
throw new IllegalStateException("Trying to register bean with the existing hashCode");
}
beanMap.put(hash, target);
| | protected void | startService()
loadCustomSocketFactories();
if (log.isDebugEnabled())
{
log.debug("RMI Port='" + (rmiPort == ANONYMOUS_PORT ?
"Anonymous" : Integer.toString(rmiPort)+"'"));
log.debug("Client SocketFactory='" + (clientSocketFactory == null ?
"Default" : clientSocketFactory.toString()+"'"));
log.debug("Server SocketFactory='" + (serverSocketFactory == null ?
"Default" : serverSocketFactory.toString()+"'"));
log.debug("Server SocketAddr='" + (serverAddress == null ?
"Default" : serverAddress+"'"));
log.debug("SecurityDomain='" + (sslDomain == null ?
"None" : sslDomain+"'"));
}
exportCI();
Registry.bind(support.getServiceName(), this);
| | protected void | stopService()
unexportCI();
| | public void | unregisterBean(javax.management.ObjectName beanName)
Integer hash = new Integer(beanName.hashCode());
beanMap.remove(hash);
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