/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 * 
 * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
 * 
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License. You can obtain
 * a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
 * or glassfish/bootstrap/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 * 
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
 * Sun designates this particular file as subject to the "Classpath" exception
 * as provided by Sun in the GPL Version 2 section of the License file that
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 * Header, with the fields enclosed by brackets [] replaced by your own
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 * If you wish your version of this file to be governed by only the CDDL or
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 * its licensees as provided above.  However, if you add GPL Version 2 code
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 */

/*
 * Profiler.java
 *
 * Created on September 17, 2001, 12:42 PM
 */

package com.sun.enterprise.util.diagnostics;

import java.util.*;
import com.sun.enterprise.util.diagnostics.Reporter;
import com.sun.enterprise.util.StringUtils;
/**
 * A easy-to-use class that wraps one global ProfilerImpl object.  Use it to begin
 * and end profiling in one 'profiling thread'.  I.e. use this object to get timing for
 * sub-operations.  Use separate ProfilerImpl objects to get timings for overlapping 
 * profile needs.
 *
 * <p> WARNING: Call reset at the end to avoid memory leaks. 
 *
 * @author  bnevins
 * @version 
 */

public class Profiler 
{
	private Profiler() 
	{
    }
	/** Reset the global ProfilerImpl instance.
	 **/
	public static void reset()
	{
		profiler.reset(); 
	}
	/** Start timing an item.
	 **/
	public static void beginItem()
	{
		profiler.beginItem();
	}
	/** Start timing an item.
	 * @param desc - Descriptive text for the item 
	 */	
	public static void beginItem(String desc)
	{
		profiler.beginItem(desc);
	}
	/** Stop timing of the latest item
	 */
	public static void endItem()
	{
		profiler.endItem();
	}
	/** return a String report of all the timings
	 * @return  */	
	public static String report()
	{
		return profiler.toString();
	}
	
	////////////////////////////////////////////////////////////////////////////
	
	/**
	 * @param notUsed  */	
	public static void main(String[] notUsed)
	{
		try
		{
			profiler.beginItem("first item");
			Thread.sleep(3000);
			profiler.beginItem("second item here dude whoa yowser yowser");
			Thread.sleep(1500);
			profiler.endItem();
			profiler.endItem();
			System.out.println("" + profiler);
		}
		catch(Exception e)
		{
		}
	}
	
	static ProfilerImpl profiler = new ProfilerImpl();
}