uk.co.gidley.jmxmonitor.JmxMonitor.java Source code

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Here is the source code for uk.co.gidley.jmxmonitor.JmxMonitor.java

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/*
 * Copyright 2009 Ben Gidley
 *
 *    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 uk.co.gidley.jmxmonitor;

import org.apache.commons.cli.CommandLine;
import org.apache.commons.cli.CommandLineParser;
import org.apache.commons.cli.HelpFormatter;
import org.apache.commons.cli.Option;
import org.apache.commons.cli.Options;
import org.apache.commons.cli.ParseException;
import org.apache.commons.cli.PosixParser;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import uk.co.gidley.jmxmonitor.services.InitialisationException;

import java.io.File;
import java.io.IOException;

/**
 * Created by IntelliJ IDEA. User: ben Date: Dec 22, 2009 Time: 7:24:30 PM
 */
public class JmxMonitor {

    private static final Logger logger = LoggerFactory.getLogger(JmxMonitor.class);
    private static final String STOP = "stop";

    public static void main(String[] args) {
        System.out.println("Starting JMX Monitor");

        Options options = new Options();
        Option configurationFileOption = new Option("c", true, "Configuration Path");
        configurationFileOption.setRequired(true);
        configurationFileOption.setArgs(1);
        options.addOption(configurationFileOption);
        Option stopOption = new Option(STOP, false, "Pass to " + STOP + " the process");
        options.addOption(stopOption);

        CommandLineParser parser = new PosixParser();
        try {
            CommandLine cmd = parser.parse(options, args);
            String configurationFile = cmd.getOptionValue("c");
            System.out.println("ConfigurationFile is " + configurationFile);
            File file = new File(configurationFile);
            if (file.exists() && file.canRead()) {
                if (cmd.hasOption(STOP)) {
                    logger.debug("Stopping existing JMXMonitor");
                    new RegistryManager(configurationFile).stop();
                } else {
                    logger.debug("Starting new JMXMonitor");
                    new RegistryManager(configurationFile).start();
                }
            } else {
                logger.error("Unable to read configuration exiting {}", file);
            }

        } catch (ParseException e) {
            logger.error("Exception occured {}", e);
            HelpFormatter formatter = new HelpFormatter();
            formatter.printHelp("jmxMonitor", options);
        } catch (InitialisationException e) {
            logger.error("{}", e);
            throw new RuntimeException(e);
        } catch (IOException e) {
            logger.error("{}", e);
            throw new RuntimeException(e);
        }

        System.out.println("Exiting JMX Monitor");
    }

}