org.rapidoid.job.ContextPreservingJobWrapper Maven / Gradle / Ivy
/*-
* #%L
* rapidoid-commons
* %%
* Copyright (C) 2014 - 2018 Nikolche Mihajlovski and contributors
* %%
* Licensed 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.
* #L%
*/
package org.rapidoid.job;
import org.rapidoid.RapidoidThing;
import org.rapidoid.annotation.Authors;
import org.rapidoid.annotation.Since;
import org.rapidoid.ctx.Ctx;
import org.rapidoid.ctx.Ctxs;
import org.rapidoid.log.Log;
import org.rapidoid.u.U;
import java.util.concurrent.CancellationException;
@Authors("Nikolche Mihajlovski")
@Since("4.1.0")
public class ContextPreservingJobWrapper extends RapidoidThing implements Runnable {
private final Runnable job;
private final Ctx ctx;
private volatile boolean done;
public ContextPreservingJobWrapper(Runnable job, Ctx ctx) {
this.job = job;
this.ctx = ctx;
}
@Override
public void run() {
try {
Ctx existingCtx = Ctxs.get();
if (existingCtx != null) {
throw U.rte("Detected context leak! Found open context (%s) on thread: %s",
existingCtx.tag(), Thread.currentThread().getName());
}
try {
if (ctx != null) {
Ctxs.attach(ctx);
} else {
Ctxs.open("job");
Log.debug("Opening new context");
}
} catch (CancellationException e) {
Log.warn("Job context initialization was canceled!");
return;
} catch (Throwable e) {
Jobs.errorCounter().incrementAndGet();
Log.error("Job context initialization failed!", e);
throw U.rte("Job context initialization failed!", e);
}
try {
job.run();
} catch (CancellationException e) {
Log.warn("Job execution was canceled!");
return;
} catch (Throwable e) {
Jobs.errorCounter().incrementAndGet();
Log.error("Job execution failed!", e);
throw U.rte("Job execution failed!", e);
} finally {
Ctxs.close();
}
} finally {
done = true;
}
}
public boolean isDone() {
return done;
}
}