/*
* Copyright 2007-2010 JadaSite.
* This file is part of JadaSite.
* JadaSite is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
* JadaSite is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with JadaSite. If not, see <http://www.gnu.org/licenses/>.
*/
package com.jada.statistics;
import java.util.Date;
import java.util.Enumeration;
import java.util.Properties;
import org.apache.struts.util.LabelValueBean;
import com.jada.util.Format;
public class Statistics {
static String STATISTICS_SERVER_UPTIME = "statistics.server.uptime";
static String STATISTICS_SERVER_TOTAL_MEMORY = "statistics.server.total.memory";
static String STATISTICS_SERVER_FREE_MEMORY = "statistics.server.free.memory";
static String STATISTICS_THREAD_COUNT = "statistics.thread.count";
static long uptime = System.currentTimeMillis();
public LabelValueBean[] getServerStats() {
LabelValueBean table[] = new LabelValueBean[3];
table[0] = new LabelValueBean(STATISTICS_SERVER_UPTIME, Format.getFullDatetime(new Date(uptime)));
table[1] = new LabelValueBean(STATISTICS_SERVER_TOTAL_MEMORY, Format.getLong(Runtime.getRuntime().totalMemory()) + " bytes");
table[2] = new LabelValueBean(STATISTICS_SERVER_FREE_MEMORY, Format.getLong(Runtime.getRuntime().freeMemory()) + " bytes");
return table;
}
public LabelValueBean[] getThreadStats() {
LabelValueBean table[] = new LabelValueBean[Thread.activeCount() + 1];
table[0] = new LabelValueBean(STATISTICS_THREAD_COUNT, Format.getInt(Thread.activeCount()));
Thread thread[] = new Thread[Thread.activeCount()];
Thread.enumerate(thread);
for (int i = 0; i < thread.length; i++) {
table[i + 1] = new LabelValueBean("Thread [" + i + "]", thread[i].toString());
}
return table;
}
public LabelValueBean[] getJvmStats() {
LabelValueBean table[] = new LabelValueBean[System.getProperties().size()];
Properties properties = System.getProperties();
Enumeration<?> enumeration = properties.propertyNames();
int i = 0;
while (enumeration.hasMoreElements()) {
String name = (String) enumeration.nextElement();
String value = (String) properties.getProperty(name);
table[i++] = new LabelValueBean(name, value);
}
return table;
}
}