/*
* JacORB - a free Java ORB
*
* Copyright (C) 1999-2014 Gerald Brose / The JacORB Team.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
package org.jacorb.orb.portableInterceptor;
import java.util.HashSet;
import org.omg.PortableInterceptor.ClientRequestInfo;
import org.omg.PortableInterceptor.ClientRequestInterceptor;
import org.omg.PortableInterceptor.ForwardRequest;
/**
* @author Gerald Brose
*/
public abstract class RecursionAwareCI
extends org.omg.CORBA.LocalObject
implements ClientRequestInterceptor
{
private final HashSet<Thread> thread_stacks;
private final HashSet<String> ignore_operations;
/**
* @param ignore_special_ops If set to true, calls to
* methods from the CORBA.Object interface like _is_a
* will be ignored.
*/
public RecursionAwareCI( boolean ignore_special_ops )
{
super();
thread_stacks = new HashSet<Thread>();
ignore_operations = new HashSet<String>();
if ( ignore_special_ops )
{
ignore_operations.add( "_is_a" );
ignore_operations.add( "_get_interface" );
ignore_operations.add( "_non_existent" );
ignore_operations.add( "_get_policy" );
ignore_operations.add( "_get_domain_managers" );
ignore_operations.add( "_set_policy_overrides" );
ignore_operations.add( "_get_component" );
}
}
private boolean enterCall( String operation )
{
if ( ignore_operations.contains( operation ) )
{
return false;
}
Thread currentThread = Thread.currentThread();
if ( thread_stacks.contains( currentThread ))
{
return false;
}
thread_stacks.add( currentThread);
return true;
}
private void exitCall()
{
thread_stacks.remove( Thread.currentThread() );
}
// implementation InterceptorOperations interface
public final void send_request( ClientRequestInfo requestInfo )
throws ForwardRequest
{
if( enterCall( requestInfo.operation() ))
{
try
{
do_send_request( requestInfo );
}
finally
{
exitCall();
}
}
}
public final void send_poll(ClientRequestInfo requestInfo)
{
if( enterCall( requestInfo.operation() ))
{
try
{
do_send_poll( requestInfo );
}
finally
{
exitCall();
}
}
}
public final void receive_reply(ClientRequestInfo ri)
{
if( enterCall( ri.operation() ))
{
try
{
do_receive_reply( ri );
}
finally
{
exitCall();
}
}
}
public final void receive_exception(ClientRequestInfo ri)
throws ForwardRequest
{
if( enterCall( ri.operation() ))
{
try
{
do_receive_exception( ri );
}
finally
{
exitCall();
}
}
}
public final void receive_other(ClientRequestInfo ri)
throws ForwardRequest
{
if( enterCall( ri.operation() ))
{
try
{
do_receive_other( ri );
}
finally
{
exitCall();
}
}
}
public abstract void do_send_request( ClientRequestInfo ri )
throws ForwardRequest;
public abstract void do_send_poll(ClientRequestInfo ri);
public abstract void do_receive_reply(ClientRequestInfo ri);
public abstract void do_receive_exception(ClientRequestInfo ri)
throws ForwardRequest;
public abstract void do_receive_other(ClientRequestInfo ri)
throws ForwardRequest;
}