/*
* Copyright 2008-2010 the T2 Project ant the Others.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with 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.
*/
//package org.t2framework.commons.util;
import java.lang.management.ManagementFactory;
import java.lang.management.MemoryMXBean;
import java.lang.management.MemoryUsage;
public class MemoryUtil {
public static long getTotalMemory() {
return getRuntime().totalMemory();
}
public static long getFreeMemory() {
return getRuntime().freeMemory();
}
public static long getMaxMemory() {
return getRuntime().maxMemory();
}
public static long getHeapInitMemory() {
return getHeapMemoryUsage().getInit();
}
public static long getHeapMaxMemory() {
return getHeapMemoryUsage().getMax();
}
public static long getHeapUsedMemory() {
return getHeapMemoryUsage().getUsed();
}
public static long getHeapCommittedMemory() {
return getHeapMemoryUsage().getCommitted();
}
private static MemoryUsage getHeapMemoryUsage() {
return getMemoryMXBean().getHeapMemoryUsage();
}
private static MemoryMXBean getMemoryMXBean() {
return ManagementFactory.getMemoryMXBean();
}
private static Runtime getRuntime() {
return Runtime.getRuntime();
}
}