org.jboss.modules.Metrics Maven / Gradle / Ivy
/*
* JBoss, Home of Professional Open Source.
* Copyright 2011, Red Hat, Inc., and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.modules;
import java.lang.management.ManagementFactory;
import java.lang.management.ThreadMXBean;
import java.security.AccessController;
/**
* @author David M. Lloyd
*/
final class Metrics {
static final boolean ENABLED;
static final ThreadMXBean THREAD_MX_BEAN = ManagementFactory.getThreadMXBean();
private Metrics() {
}
static long getCurrentCPUTime() {
return ENABLED ? false ? THREAD_MX_BEAN.getCurrentThreadCpuTime() : System.nanoTime() : 0L;
}
static {
ENABLED = Boolean.parseBoolean(AccessController.doPrivileged(new PropertyReadAction("jboss.modules.metrics", "false")));
}
}