org.jahia.modules.serversettings.memoryThread.MemoryThreadInformationManagement.java Source code

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Here is the source code for org.jahia.modules.serversettings.memoryThread.MemoryThreadInformationManagement.java

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/**
 * ==========================================================================================
 * =                   JAHIA'S DUAL LICENSING - IMPORTANT INFORMATION                       =
 * ==========================================================================================
 *
 *                                 http://www.jahia.com
 *
 *     Copyright (C) 2002-2016 Jahia Solutions Group SA. All rights reserved.
 *
 *     THIS FILE IS AVAILABLE UNDER TWO DIFFERENT LICENSES:
 *     1/GPL OR 2/JSEL
 *
 *     1/ GPL
 *     ==================================================================================
 *
 *     IF YOU DECIDE TO CHOOSE THE GPL LICENSE, YOU MUST COMPLY WITH THE FOLLOWING TERMS:
 *
 *     This program 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.
 *
 *     This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
 *
 *
 *     2/ JSEL - Commercial and Supported Versions of the program
 *     ===================================================================================
 *
 *     IF YOU DECIDE TO CHOOSE THE JSEL LICENSE, YOU MUST COMPLY WITH THE FOLLOWING TERMS:
 *
 *     Alternatively, commercial and supported versions of the program - also known as
 *     Enterprise Distributions - must be used in accordance with the terms and conditions
 *     contained in a separate written agreement between you and Jahia Solutions Group SA.
 *
 *     If you are unsure which license is appropriate for your use,
 *     please contact the sales department at sales@jahia.com.
 */
package org.jahia.modules.serversettings.memoryThread;

import org.apache.commons.io.output.StringBuilderWriter;
import org.jahia.bin.errors.ErrorFileDumper;
import org.jahia.tools.jvm.ThreadMonitor;
import org.jahia.utils.FileUtils;
import org.springframework.binding.message.MessageBuilder;
import org.springframework.binding.message.MessageContext;

import java.io.File;
import java.io.PrintWriter;
import java.io.Serializable;
import java.lang.management.ManagementFactory;
import java.lang.management.MemoryUsage;

import javax.management.InstanceNotFoundException;
import javax.management.MBeanException;
import javax.management.MalformedObjectNameException;
import javax.management.ReflectionException;

/**
 * @author rincevent
 */
public class MemoryThreadInformationManagement implements Serializable {
    private static final long serialVersionUID = 9142360328755986891L;
    private String committedMemory;
    private String maxMemory;
    private long memoryUsage;
    private String mode = "memory";
    private String usedMemory;

    public MemoryThreadInformationManagement() {
        refresh();
    }

    public void doGarbageCollection(MessageContext messages) {
        System.gc();
        messages.addMessage(
                new MessageBuilder().info().code("serverSettings.manageMemory.memory.gc.triggered").build());
    }

    public boolean isHeapDumpSupported() throws MalformedObjectNameException {
        return ErrorFileDumper.isHeapDumpSupported();
    }

    public void doHeapDump(MessageContext messages)
            throws MalformedObjectNameException, InstanceNotFoundException, ReflectionException, MBeanException {
        File hprofFilePath = ErrorFileDumper.performHeapDump();
        messages.addMessage(new MessageBuilder().info()
                .code("serverSettings.manageMemory.memory.heapDump.triggered").arg(hprofFilePath).build());
    }

    public String executeThreadDump() {
        StringBuilder stringBuilder = new StringBuilder();
        ErrorFileDumper.outputSystemInfo(new PrintWriter(new StringBuilderWriter(stringBuilder)), false, false,
                false, false, false, true, false, false);
        return stringBuilder.toString();
    }

    public String getCommittedMemory() {
        return committedMemory;
    }

    public String getMaxMemory() {
        return maxMemory;
    }

    public long getMemoryUsage() {
        return memoryUsage;
    }

    public String getMode() {
        return mode;
    }

    public String getUsedMemory() {
        return usedMemory;
    }

    public boolean isErrorFileDumperActivated() {
        return ErrorFileDumper.isFileDumpActivated();
    }

    public boolean isThreadMonitorActivated() {
        return ThreadMonitor.getInstance().isActivated();
    }

    public void performThreadDump(String output) {
        ThreadMonitor.getInstance().dumpThreadInfo("sysout".equals(output), "file".equals(output));
    }

    public MemoryThreadInformationManagement refresh() {
        MemoryUsage usage = ManagementFactory.getMemoryMXBean().getHeapMemoryUsage();
        committedMemory = FileUtils.humanReadableByteCount(usage.getCommitted(), true);
        maxMemory = FileUtils.humanReadableByteCount(usage.getMax(), true);
        usedMemory = FileUtils.humanReadableByteCount(usage.getUsed(), true);
        memoryUsage = Math.round((double) usage.getUsed() / (double) usage.getMax() * 100d);
        return this;
    }

    public void scheduleThreadDump(String output, Integer count, Integer interval) {
        ThreadMonitor.getInstance().dumpThreadInfoWithInterval("sysout".equals(output), "file".equals(output),
                count > 0 ? count : 10, interval > 0 ? interval : 10);
    }

    public void setMode(String mode) {
        this.mode = mode;
    }

    public void toggleErrorFileDumper() {
        ErrorFileDumper.setFileDumpActivated(!ErrorFileDumper.isFileDumpActivated());
    }

    public void toggleThreadMonitor() {
        ThreadMonitor.getInstance().setActivated(!ThreadMonitor.getInstance().isActivated());
    }
}