Profiler.java

// Copyright 2012 Citrix Systems, Inc. Licensed under the
// Apache License, Version 2.0 (the "License"); you may not use this
// file except in compliance with the License.  Citrix Systems, Inc.
// reserves all rights not expressly granted by 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.
// 
// Automatically generated by addcopyright.py at 04/03/2012
package com.cloud.utils;

public class Profiler {
	private Long startTickInMs;
	private Long stopTickInMs;
	
	public Profiler() {
		startTickInMs = null;
		stopTickInMs = null;
	}
	
	public long start() {
		startTickInMs = System.currentTimeMillis();
		return startTickInMs.longValue();
	}
	
	public long stop() {
		stopTickInMs = System.currentTimeMillis();
		return stopTickInMs.longValue();
	}
	
	public long getDuration() {
	    if(startTickInMs != null &&  stopTickInMs != null)
	        return stopTickInMs.longValue() - startTickInMs.longValue();
	    
	    return -1;
	}
	
	public boolean isStarted() {
	    return startTickInMs != null;
	}
	
	public boolean isStopped() {
	    return stopTickInMs != null;
	}
	
	public String toString() {
	    if(startTickInMs == null)
	        return "Not Started";
	    
	    if(stopTickInMs == null)
	        return "Started but not stopped";
	    
	    return "Done. Duration: " + getDuration() + "ms";
	}
}