/**
* 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.tomee.embedded;
import org.apache.openejb.util.DaemonThreadFactory;
import org.apache.openejb.util.Pipe;
import org.junit.rules.TestRule;
import org.junit.runner.Description;
import org.junit.runners.model.Statement;
import java.lang.management.ManagementFactory;
import java.lang.management.RuntimeMXBean;
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.ScheduledFuture;
import java.util.concurrent.TimeUnit;
// only for debugging purpose (mainly on buildbot)
public class ThreadStackRule implements TestRule {
@Override
public Statement apply(final Statement base, final Description description) {
if (System.getProperty("os.name", "unknown").toLowerCase().startsWith("windows")) {
return base;
}
return new Statement() {
@Override
public void evaluate() throws Throwable {
final ScheduledExecutorService ses = Executors.newScheduledThreadPool(1, new DaemonThreadFactory(ThreadStackRule.class.getSimpleName() + "-"));
final ScheduledFuture<?> task = ses.scheduleAtFixedRate(new Runnable() {
@Override
public void run() {
final RuntimeMXBean bean = ManagementFactory.getRuntimeMXBean();
String pid = bean.getName();
if (pid.contains("@")) {
pid = pid.substring(0, pid.indexOf("@"));
}
try {
Pipe.pipe(Runtime.getRuntime().exec("kill -3 " + pid));
} catch (final Exception exception) {
exception.printStackTrace();
}
}
}, 2, 2, TimeUnit.MINUTES);
try {
base.evaluate();
} finally {
task.cancel(true);
ses.shutdownNow();
}
}
};
}
}