/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.apache.karaf.diagnostic.core.providers;
import org.apache.karaf.diagnostic.core.common.TextDumpProvider;
import java.io.OutputStreamWriter;
import java.lang.management.ManagementFactory;
import java.lang.management.MemoryMXBean;
/**
* Provider for memory information in memory.txt.
*/
public class MemoryDumpProvider extends TextDumpProvider {
/**
* Create a new dump entry which contains information about memory usage.
*/
public MemoryDumpProvider() {
super("memory.txt");
}
@Override
protected void writeDump(OutputStreamWriter outputStream) throws Exception {
MemoryMXBean memoryMXBean = ManagementFactory.getMemoryMXBean();
outputStream.write("Number of objects waiting finalization: " + memoryMXBean.getObjectPendingFinalizationCount() + "\n\n");
outputStream.write("Heap:\n");
outputStream.write("\tInit: " + memoryMXBean.getHeapMemoryUsage().getInit() + "\n");
outputStream.write("\tUser: " + memoryMXBean.getHeapMemoryUsage().getUsed() + "\n");
outputStream.write("\tCommitted: " + memoryMXBean.getHeapMemoryUsage().getCommitted() + "\n");
outputStream.write("\tMax: " + memoryMXBean.getHeapMemoryUsage().getMax() + "\n");
outputStream.write("Non-Heap: \n");
outputStream.write("\tInit: " + memoryMXBean.getNonHeapMemoryUsage().getInit() + "\n");
outputStream.write("\tUser: " + memoryMXBean.getNonHeapMemoryUsage().getUsed() + "\n");
outputStream.write("\tCommitted: " + memoryMXBean.getNonHeapMemoryUsage().getCommitted() + "\n");
outputStream.write("\tMax: " + memoryMXBean.getNonHeapMemoryUsage().getMax() + "\n");
}
}