fr.inria.atlanmod.kyanos.benchmarks.CdoTraverser.java Source code

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Here is the source code for fr.inria.atlanmod.kyanos.benchmarks.CdoTraverser.java

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/*******************************************************************************
 * Copyright (c) 2013 Atlanmod INRIA LINA Mines Nantes
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Atlanmod INRIA LINA Mines Nantes - initial API and implementation
 *******************************************************************************/
package fr.inria.atlanmod.kyanos.benchmarks;

import java.text.MessageFormat;
import java.util.Arrays;
import java.util.Iterator;
import java.util.logging.Level;
import java.util.logging.Logger;

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.OptionBuilder;
import org.apache.commons.cli.Options;
import org.apache.commons.cli.ParseException;
import org.apache.commons.cli.PosixParser;
import org.eclipse.emf.cdo.session.CDOSession;
import org.eclipse.emf.cdo.transaction.CDOTransaction;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.resource.Resource;

import fr.inria.atlanmod.kyanos.benchmarks.cdo.EmbeddedCDOServer;
import fr.inria.atlanmod.kyanos.benchmarks.util.MessageUtil;

public class CdoTraverser {

    private static final Logger LOG = Logger.getLogger(CdoTraverser.class.getName());

    private static final String IN = "input";

    private static final String REPO_NAME = "reponame";

    private static final String EPACKAGE_CLASS = "epackage_class";

    public static void main(String[] args) {
        Options options = new Options();

        Option inputOpt = OptionBuilder.create(IN);
        inputOpt.setArgName("INPUT");
        inputOpt.setDescription("Input CDO resource directory");
        inputOpt.setArgs(1);
        inputOpt.setRequired(true);

        Option inClassOpt = OptionBuilder.create(EPACKAGE_CLASS);
        inClassOpt.setArgName("CLASS");
        inClassOpt.setDescription("FQN of EPackage implementation class");
        inClassOpt.setArgs(1);
        inClassOpt.setRequired(true);

        Option repoOpt = OptionBuilder.create(REPO_NAME);
        repoOpt.setArgName("REPO_NAME");
        repoOpt.setDescription("CDO Repository name");
        repoOpt.setArgs(1);
        repoOpt.setRequired(true);

        options.addOption(inputOpt);
        options.addOption(inClassOpt);
        options.addOption(repoOpt);

        CommandLineParser parser = new PosixParser();

        try {
            CommandLine commandLine = parser.parse(options, args);

            String repositoryDir = commandLine.getOptionValue(IN);
            String repositoryName = commandLine.getOptionValue(REPO_NAME);

            Class<?> inClazz = CdoTraverser.class.getClassLoader()
                    .loadClass(commandLine.getOptionValue(EPACKAGE_CLASS));
            inClazz.getMethod("init").invoke(null);

            EmbeddedCDOServer server = new EmbeddedCDOServer(repositoryDir, repositoryName);
            try {
                server.run();
                CDOSession session = server.openSession();
                CDOTransaction transaction = session.openTransaction();
                Resource resource = transaction.getRootResource();

                LOG.log(Level.INFO, "Start counting");
                int count = 0;
                long begin = System.currentTimeMillis();
                for (Iterator<EObject> iterator = resource.getAllContents(); iterator.hasNext(); iterator
                        .next(), count++)
                    ;
                long end = System.currentTimeMillis();
                LOG.log(Level.INFO, "End counting");
                LOG.log(Level.INFO,
                        MessageFormat.format("Resource {0} contains {1} elements", resource.getURI(), count));
                LOG.log(Level.INFO, MessageFormat.format("Time spent: {0}", MessageUtil.formatMillis(end - begin)));

                transaction.close();
                session.close();
            } finally {
                server.stop();
            }
        } catch (ParseException e) {
            MessageUtil.showError(e.toString());
            MessageUtil.showError("Current arguments: " + Arrays.toString(args));
            HelpFormatter formatter = new HelpFormatter();
            formatter.printHelp("java -jar <this-file.jar>", options, true);
        } catch (Throwable e) {
            MessageUtil.showError(e.toString());
        }
    }
}