org.htrace.wrappers.TraceRunnable 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.htrace.wrappers;
import org.htrace.Span;
import org.htrace.Trace;
import org.htrace.TraceScope;
/**
* Wrap a Runnable with a Span that survives a change in threads.
*/
public class TraceRunnable implements Runnable {
private final Span parent;
private final Runnable runnable;
private final String description;
public TraceRunnable(Runnable runnable) {
this(Trace.currentSpan(), runnable);
}
public TraceRunnable(Span parent, Runnable runnable) {
this(parent, runnable, null);
}
public TraceRunnable(Span parent, Runnable runnable, String description) {
this.parent = parent;
this.runnable = runnable;
this.description = description;
}
@Override
public void run() {
if (parent != null) {
TraceScope chunk = Trace.startSpan(getDescription(), parent);
try {
runnable.run();
} finally {
chunk.close();
}
} else {
runnable.run();
}
}
private String getDescription() {
return this.description == null ? Thread.currentThread().getName() : description;
}
}