org.apache.activemq.artemis.utils.actors.OrderedExecutor Maven / Gradle / Ivy
/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* 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.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.activemq.artemis.utils.actors;
import java.util.concurrent.Executor;
import org.apache.activemq.artemis.api.core.ActiveMQInterruptedException;
import org.apache.activemq.artemis.shaded.org.jboss.logging.Logger;
/**
* An executor that always runs all tasks in order, using a delegate executor to run the tasks.
*
* More specifically, any call B to the {@link #execute(Runnable)} method that happens-after another call A to the
* same method, will result in B's task running after A's.
*/
public class OrderedExecutor extends ProcessorBase implements ArtemisExecutor {
public OrderedExecutor(Executor delegate) {
super(delegate);
}
private static final Logger logger = Logger.getLogger(OrderedExecutor.class);
@Override
protected final void doTask(Runnable task) {
try {
task.run();
} catch (ActiveMQInterruptedException e) {
// This could happen during shutdowns. Nothing to be concerned about here
logger.debug("Interrupted Thread", e);
} catch (Throwable t) {
logger.warn(t.getMessage(), t);
}
}
@Override
public final void execute(Runnable run) {
task(run);
}
@Override
public String toString() {
return "OrderedExecutor(tasks=" + tasks + ")";
}
}