/*
 * Copyright (c) 2010, Sven Gothel
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of Sven Gothel nor the
 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL Sven Gothel BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package com.jogamp.common.util;

/**
 * Helper class to provide a Runnable queue implementation with a Runnable wrapper
 * which notifies after execution for the <code>invokeAndWait()</code> semantics.
 */
public class RunnableTask implements Runnable {
    Runnable runnable;
    Object notifyObject;
    boolean catchExceptions;

    Throwable runnableException;
    long ts0, ts1, ts2;

    public RunnableTask(Runnable runnable) {
        this(runnable, null, false);
    }

    public RunnableTask(Runnable runnable, Object notifyObject) {
        this(runnable, notifyObject, false);
    }

    public RunnableTask(Runnable runnable, Object notifyObject, boolean catchExceptions) {
        this.runnable = runnable ;
        this.notifyObject = notifyObject ;
        this.catchExceptions = catchExceptions ;
        ts0 = System.currentTimeMillis();
        ts1 = 0;
        ts2 = 0;
    }

    public void run() {
        ts1 = System.currentTimeMillis();
        try {
            runnable.run();
        } catch (Throwable t) {
            runnableException = t;
            if(!catchExceptions) {
                throw new RuntimeException(runnableException);
            }
        } finally {
            ts2 = System.currentTimeMillis();
        }
        if(null != notifyObject) {
            synchronized (notifyObject) {
                notifyObject.notifyAll();
            }
        }
    }

    public boolean isExecuted() { return 0 != ts2 ; }
    public Throwable getThrowable() { return runnableException; }
    public long getTimestampCreate() { return ts0; }
    public long getTimestampBeforeExec() { return ts1; }
    public long getTimestampAfterExec() { return ts2; }
    public long getDurationInQueue() { return ts1 - ts0; }
    public long getDurationInExec() { return ts2 - ts1; }
    public long getDurationTotal() { return ts2 - ts0; }

    public String toString() {
        return "RunnableTask[executed "+isExecuted()+", t2-t0 "+getDurationTotal()+", t2-t1 "+getDurationInExec()+", t1-t0 "+getDurationInQueue()+", throwable "+getThrowable()+", Runnable "+runnable+"]";
    }
}