com.atomikos.icatch.imp.Propagator Maven / Gradle / Ivy
/**
* Copyright (C) 2000-2012 Atomikos
*
* This code ("Atomikos TransactionsEssentials"), by itself,
* is being distributed under the
* Apache License, Version 2.0 ("License"), a copy of which may be found at
* http://www.atomikos.com/licenses/apache-license-2.0.txt .
* You may not use this file except in compliance with the License.
*
* While the License grants certain patent license rights,
* those patent license rights only extend to the use of
* Atomikos TransactionsEssentials by itself.
*
* This code (Atomikos TransactionsEssentials) contains certain interfaces
* in package (namespace) com.atomikos.icatch
* (including com.atomikos.icatch.Participant) which, if implemented, may
* infringe one or more patents held by Atomikos.
* It should be appreciated that you may NOT implement such interfaces;
* licensing to implement these interfaces must be obtained separately from Atomikos.
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
*/
package com.atomikos.icatch.imp;
import com.atomikos.logging.Logger;
import com.atomikos.logging.LoggerFactory;
import com.atomikos.thread.TaskManager;
/**
* A propagator sends PropagationMessages to participants.
*/
class Propagator
{
private static final Logger LOGGER = LoggerFactory.createLogger(Propagator.class);
static long RETRY_INTERVAL = 10000;
private boolean threaded_ = true;
Propagator ( boolean threaded )
{
threaded_ = threaded;
}
public synchronized void submitPropagationMessage ( PropagationMessage msg )
{
PropagatorThread t = new PropagatorThread ( msg );
if ( threaded_ ) {
TaskManager.getInstance().executeTask ( t );
} else {
t.run();
}
}
private static class PropagatorThread implements Runnable
{
private PropagationMessage msg;
PropagatorThread ( PropagationMessage msg )
{
this.msg = msg;
}
public void run()
{
try {
boolean tryAgain = true;
do {
tryAgain = msg.submit();
if ( tryAgain ) {
//wait a little before retrying
Thread.sleep ( RETRY_INTERVAL );
if ( LOGGER.isDebugEnabled() ) LOGGER.logDebug ( "Propagator: retrying " + "message: " + msg );
}
} while ( tryAgain );
}
catch ( Exception e ) {
LOGGER.logWarning ( "ERROR in propagator: " + e.getMessage () +
(msg != null ? " while sending message: " + msg : "") , e );
}
}
}
}