SimpleProbe.java

/**
* OLAT - Online Learning and Training<br>
* http://www.olat.org
* <p>
* Licensed under the Apache License, Version 2.0 (the "License"); <br>
* you may not use this file except in compliance with the License.<br>
* You may obtain a copy of the License at
* <p>
* http://www.apache.org/licenses/LICENSE-2.0
* <p>
* Unless required by applicable law or agreed to in writing,<br>
* software distributed under the License is distributed on an "AS IS" BASIS, <br>
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. <br>
* See the License for the specific language governing permissions and <br>
* limitations under the License.
* <p>
* Copyright (c) since 2004 at Multimedia- & E-Learning Services (MELS),<br>
* University of Zurich, Switzerland.
* <hr>
* <a href="http://www.openolat.org">
* OpenOLAT - Online Learning and Training</a><br>
* This file has been modified by the OpenOLAT community. Changes are licensed
* under the Apache 2.0 license as the original file.
*/
package org.olat.core.commons.persistence;

public class SimpleProbe {

	private long total_;
	private int num_;
	private long max_;
	
	public synchronized void addMeasurement(long value) {
		total_ += value;
		num_++;
		if (value>max_) {
			max_ = value;
		}
	}
	
	public int getAvg() {
		return Math.round((float)total_/(float)num_);
	}
	
	public long getMax() {
		return max_;
	}
	
	public int getNum() {
		return num_; 
	}
	
	public synchronized void reset() {
		total_ = 0;
		num_ = 0;
		max_ = 0;
	}
	
	public String toString() {
		return "[num="+num_+", max="+max_+", avg="+getAvg()+"]";
	}

	public long getSum() {
		return total_;
	}
}