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There is a newer version: 8.13.4

/*
 * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
 * or more contributor license agreements. Licensed under the Elastic License
 * 2.0 and the Server Side Public License, v 1; you may not use this file except
 * in compliance with, at your election, the Elastic License 2.0 or the Server
 * Side Public License, v 1.
 */

package org.elasticsearch.monitor;

import org.elasticsearch.common.component.AbstractLifecycleComponent;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.env.NodeEnvironment;
import org.elasticsearch.monitor.fs.FsService;
import org.elasticsearch.monitor.jvm.JvmGcMonitorService;
import org.elasticsearch.monitor.jvm.JvmService;
import org.elasticsearch.monitor.os.OsService;
import org.elasticsearch.monitor.process.ProcessService;
import org.elasticsearch.threadpool.ThreadPool;

import java.io.IOException;

public class MonitorService extends AbstractLifecycleComponent {

    private final JvmGcMonitorService jvmGcMonitorService;
    private final OsService osService;
    private final ProcessService processService;
    private final JvmService jvmService;
    private final FsService fsService;

    public MonitorService(Settings settings, NodeEnvironment nodeEnvironment, ThreadPool threadPool) throws IOException {
        this.jvmGcMonitorService = new JvmGcMonitorService(settings, threadPool);
        this.osService = new OsService(settings);
        this.processService = new ProcessService(settings);
        this.jvmService = new JvmService(settings);
        this.fsService = new FsService(settings, nodeEnvironment);
    }

    public OsService osService() {
        return this.osService;
    }

    public ProcessService processService() {
        return this.processService;
    }

    public JvmService jvmService() {
        return this.jvmService;
    }

    public FsService fsService() {
        return this.fsService;
    }

    @Override
    protected void doStart() {
        jvmGcMonitorService.start();
    }

    @Override
    protected void doStop() {
        jvmGcMonitorService.stop();
    }

    @Override
    protected void doClose() {
        jvmGcMonitorService.close();
    }

}