SystemInformation.java

/*
 * ApplicationInsights-Java
 * Copyright (c) Microsoft Corporation
 * All rights reserved.
 *
 * MIT License
 * Permission is hereby granted, free of charge, to any person obtaining a copy of this
 * software and associated documentation files (the ""Software""), to deal in the Software
 * without restriction, including without limitation the rights to use, copy, modify, merge,
 * publish, distribute, sublicense, and/or sell copies of the Software, and to permit
 * persons to whom the Software is furnished to do so, subject to the following conditions:
 * The above copyright notice and this permission notice shall be included in all copies or
 * substantial portions of the Software.
 * THE SOFTWARE IS PROVIDED *AS IS*, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
 * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
 * PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
 * FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 */

package com.microsoft.applicationinsights.internal.system;

import java.lang.management.ManagementFactory;

import com.microsoft.applicationinsights.internal.logger.InternalLogger;
import org.apache.commons.lang3.SystemUtils;

import com.google.common.base.Strings;

/**
 * Created by gupele on 3/3/2015.
 */
public enum SystemInformation {
    INSTANCE;

    private final static String DEFAULT_PROCESS_NAME = "Java_Process";

    private String processId;

    public String getProcessId() {
        setProcessId();
        return processId;
    }

    public boolean isWindows() {
        return SystemUtils.IS_OS_WINDOWS;
    }

    public boolean isUnix() {
        return SystemUtils.IS_OS_UNIX;
    }

    private synchronized void setProcessId() {
        if (!Strings.isNullOrEmpty(processId)) {
            return;
        }

        String rawName = ManagementFactory.getRuntimeMXBean().getName();
        if (!Strings.isNullOrEmpty(rawName)) {
            int i = rawName.indexOf("@");
            if (i != -1) {
                String processIdAsString = rawName.substring(0, i);
                try {
                    Integer.parseInt(processIdAsString);
                    processId = processIdAsString;
                    return;
                } catch (Exception e) {
                    InternalLogger.INSTANCE.error("Failed to fetch process id: '%s'", e.getMessage());
                }
            }
        }

        // Default
        processId = DEFAULT_PROCESS_NAME;
    }
}