org.codehaus.continuum.cli.ContinuumCC.java Source code

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Here is the source code for org.codehaus.continuum.cli.ContinuumCC.java

Source

package org.codehaus.continuum.cli;

/*
 * Copyright (c) 2004, Jason van Zyl and Trygve Laugstl
 *
 * 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.
 */

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Map;

import org.apache.commons.cli.MissingOptionException;
import org.apache.commons.cli.UnrecognizedOptionException;
import org.apache.maven.scm.Scm;

import org.codehaus.continuum.ContinuumException;
import org.codehaus.plexus.PlexusContainer;
import org.codehaus.plexus.embed.Embedder;

/**
 * @author <a href="mailto:trygvis@inamo.no">Trygve Laugst&oslash;l</a>
 * @version $Id: ContinuumCC.java,v 1.1 2004-10-09 11:21:27 trygvis Exp $
 */
public class ContinuumCC {
    private PlexusContainer plexus;

    private Map commands;

    private Embedder embedder;

    public static void main(String[] args) throws Exception {
        ContinuumCC cli = new ContinuumCC();

        cli.start();

        int exitCode = cli.work(args);

        try {
            cli.stop();
        } catch (Exception ex) {
            System.err.println("Exception while shutting down the container, ignored.");

            ex.printStackTrace(System.err);
        }

        System.exit(exitCode);
    }

    public void start() throws Exception {
        embedder = new Embedder();

        embedder.start();

        plexus = embedder.getContainer();

        plexus.lookup(Scm.ROLE, "cvs");
    }

    public void stop() throws Exception {
        embedder.stop();
    }

    public int work(String[] args) throws Exception {
        if (embedder == null) {
            throw new ContinuumException("Must be started first.");
        }

        commands = plexus.lookupMap(CliCommand.ROLE);

        if (args.length == 0) {
            throw new Exception("The first argument on the command line must be the command name.");
        }

        String commandName = args[0];

        CliCommand command = getCommand(commandName);

        try {
            // Remove the first argument which is the command name.
            List argsList = new ArrayList(Arrays.asList(args));

            argsList.remove(0);

            args = (String[]) argsList.toArray(new String[args.length - 1]);

            command.execute(args);
        } catch (MissingOptionException ex) {
            System.err.println(ex.getMessage());

            System.err.println(command.getCommandLineHelp());

            return -1;
        } catch (UnrecognizedOptionException ex) {
            System.err.println(ex.getMessage());

            System.err.println(command.getCommandLineHelp());

            return -1;
        } catch (ContinuumException ex) {
            ex.printStackTrace(System.out);

            return -1;
        }

        return 0;
    }

    private CliCommand getCommand(String name) throws Exception {
        CliCommand command = (CliCommand) commands.get(name);

        if (command == null) {
            throw new Exception("No such command: '" + name + "'.");
        }

        return command;
    }

    public PlexusContainer getPlexus() {
        return plexus;
    }
}