org.jboss.mx.interceptor: public class: DynamicInterceptor

org.jboss.mx.interceptor
public class: DynamicInterceptor [javadoc | source]

java.lang.Object
   org.jboss.mx.interceptor.AbstractInterceptor
      org.jboss.mx.interceptor.DynamicInterceptor

All Implemented Interfaces:
Interceptor

Interceptor that provides access to the org.jboss.mx.server.Interceptable hooks for dynamically adding and removing interceptors to an MBean.

author: < - a href="mailto:dimitris@jboss.org">Dimitris Andreadis.

version: $ - Revision: 39975 $

Field Summary
public static final String	ADD_INTERCEPTOR	methods implemented from org.jboss.mx.server.Interceptable
public static final String	REMOVE_INTERCEPTOR
MBeanInvoker	invoker	the invoker implementing Interceptable

Fields inherited from org.jboss.mx.interceptor.AbstractInterceptor:
name, isShared, log

Constructor:
public DynamicInterceptor(MBeanInvoker invoker) { // initialize logger and name super(); setName("DynamicInterceptor"); this.invoker = invoker; } CTOR

Constructor:

 public DynamicInterceptor(MBeanInvoker invoker) {
   
      // initialize logger and name
      super();
      setName("DynamicInterceptor");
      this.invoker = invoker;
}

CTOR

Method from org.jboss.mx.interceptor.DynamicInterceptor Summary:
invoke

Methods from org.jboss.mx.interceptor.AbstractInterceptor:
destroy, getName, init, invoke, isShared, setLogger, setName, start, stop, toString

Methods from java.lang.Object:
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method from org.jboss.mx.interceptor.DynamicInterceptor Detail:
public Object invoke(Invocation invocation) throws Throwable { String type = invocation.getType(); // implement Interceptable by delegating to MBeanInvoker if (type.equals(Invocation.OP_INVOKE)) { String name = invocation.getName(); if (name.equals(ADD_INTERCEPTOR)) { Object args[] = invocation.getArgs(); Object retn = invocation.getReturnTypeClass(); if ((args.length == 1) && (args[0] instanceof Interceptor) && (retn == null)) { invoker.addOperationInterceptor((Interceptor)args[0]); return null; } } else if (name.equals(REMOVE_INTERCEPTOR)) { Object args[] = invocation.getArgs(); Object retn = invocation.getReturnTypeClass(); if ((args.length == 1) && (args[0] instanceof Interceptor) && (retn == null)) { invoker.removeOperationInterceptor((Interceptor)args[0]); return null; } } } // call the next in the interceptor chain, // if nobody follows dispatch the call Interceptor next = invocation.nextInterceptor(); if (next != null) { return next.invoke(invocation); } else { return invocation.dispatch(); } } Do the trick

Method from org.jboss.mx.interceptor.DynamicInterceptor Detail:

 public Object invoke(Invocation invocation) throws Throwable {
      String type = invocation.getType();
      // implement Interceptable by delegating to MBeanInvoker
      if (type.equals(Invocation.OP_INVOKE))
      {
         String name = invocation.getName();
         if (name.equals(ADD_INTERCEPTOR))
         {
            Object args[] = invocation.getArgs();
            Object retn = invocation.getReturnTypeClass();
            if ((args.length == 1) && (args[0] instanceof Interceptor) && (retn == null))
            {
               invoker.addOperationInterceptor((Interceptor)args[0]);
               return null;
            }
         }
         else if (name.equals(REMOVE_INTERCEPTOR))
         {
            Object args[] = invocation.getArgs();
            Object retn = invocation.getReturnTypeClass();
            if ((args.length == 1) && (args[0] instanceof Interceptor) && (retn == null))
            {
               invoker.removeOperationInterceptor((Interceptor)args[0]);
               return null;
            }            
         }
      }
      // call the next in the interceptor chain,
      // if nobody follows dispatch the call
      Interceptor next = invocation.nextInterceptor();
      if (next != null)
      {
         return next.invoke(invocation);
      }
      else
      {
         return invocation.dispatch();
      }
}

Do the trick