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Micro Distribution of the Payara Project
/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 2012 Oracle and/or its affiliates. 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_1_1.html
* or packager/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 packager/legal/LICENSE.txt.
*
* GPL Classpath Exception:
* Oracle designates this particular file as subject to the "Classpath"
* exception as provided by Oracle in the GPL Version 2 section of the License
* file that accompanied this code.
*
* Modifications:
* If applicable, add the following below the License Header, with the fields
* enclosed by brackets [] replaced by your own identifying information:
* "Portions Copyright [year] [name of copyright owner]"
*
* Contributor(s):
* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* recipient has the option to distribute your version of this file under
* either the CDDL, the GPL Version 2 or to extend the choice of license to
* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
* holder.
*/
/*
* Remove this class
*/
package com.sun.enterprise.admin.remote;
import java.util.ArrayList;
import java.util.List;
/**
*
* @author mmares
*/
public class Metrix {
public static class Stat {
public final long timestamp;
public final String message;
public final String param;
public Stat(String message, String param) {
this.timestamp = System.currentTimeMillis();
this.message = message;
this.param = param;
}
}
private static final Metrix instance = new Metrix();
private static final long timestamp = System.currentTimeMillis();
private List list = new ArrayList(64);
private Metrix() {
}
@Override
public String toString() {
StringBuilder res = new StringBuilder();
res.append("duration, delta, event\n");
long lastTS = timestamp;
for (Stat stat : list) {
res.append(stat.timestamp - timestamp).append(", ");
res.append(stat.timestamp - lastTS).append(", ");
res.append(stat.message);
if (stat.param != null) {
res.append(" - ").append(stat.param);
}
res.append('\n');
lastTS = stat.timestamp;
}
return res.toString();
}
// ---------- Static API
public static void event(String message) {
instance.list.add(new Stat(message, null));
}
public static void event(String message, String param) {
instance.list.add(new Stat(message, null));
}
public static Metrix getInstance() {
return instance;
}
}