org.apache.tools.ant.listener.ProfileLogger 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
*
* https://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.tools.ant.listener;
import java.util.Date;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import org.apache.tools.ant.BuildEvent;
import org.apache.tools.ant.DefaultLogger;
/**
* This is a special logger that is designed to profile builds.
*
* @since Ant1.8
*/
public class ProfileLogger extends DefaultLogger {
private Map profileData = new ConcurrentHashMap<>();
/**
* Logs a message to say that the target has started.
*
* @param event
* An event with any relevant extra information. Must not be
* null.
*/
@Override
public void targetStarted(BuildEvent event) {
Date now = new Date();
String name = "Target " + event.getTarget().getName();
logStart(event, now, name);
profileData.put(event.getTarget(), now);
}
/**
* Logs a message to say that the target has finished.
*
* @param event
* An event with any relevant extra information. Must not be
* null.
*/
@Override
public void targetFinished(BuildEvent event) {
Date start = profileData.remove(event.getTarget());
String name = "Target " + event.getTarget().getName();
logFinish(event, start, name);
}
/**
* Logs a message to say that the task has started.
*
* @param event
* An event with any relevant extra information. Must not be
* null.
*/
@Override
public void taskStarted(BuildEvent event) {
String name = event.getTask().getTaskName();
Date now = new Date();
logStart(event, now, name);
profileData.put(event.getTask(), now);
}
/**
* Logs a message to say that the task has finished.
*
* @param event
* An event with any relevant extra information. Must not be
* null.
*/
@Override
public void taskFinished(BuildEvent event) {
Date start = profileData.remove(event.getTask());
String name = event.getTask().getTaskName();
logFinish(event, start, name);
}
private void logFinish(BuildEvent event, Date start, String name) {
Date now = new Date();
String msg;
if (start != null) {
long diff = now.getTime() - start.getTime();
msg = String.format("%n%s: finished %s (%d)", name, now, diff);
} else {
msg = String.format("%n%s: finished %s (unknown duration, start not detected)",
name, now);
}
printMessage(msg, out, event.getPriority());
log(msg);
}
private void logStart(BuildEvent event, Date start, String name) {
String msg = String.format("%n%s: started %s", name, start);
printMessage(msg, out, event.getPriority());
log(msg);
}
}