nl.toolforge.karma.cli.cmd.ListManifestsImpl.java Source code

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Here is the source code for nl.toolforge.karma.cli.cmd.ListManifestsImpl.java

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/*
Karma CLI - Command Line Interface for the Karma application
Copyright (C) 2004  Toolforge <www.toolforge.nl>
    
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
    
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
Lesser General Public License for more details.
    
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/
package nl.toolforge.karma.cli.cmd;

import nl.toolforge.karma.core.cmd.CommandDescriptor;
import nl.toolforge.karma.core.cmd.CommandException;
import nl.toolforge.karma.core.cmd.CommandResponse;
import nl.toolforge.karma.core.cmd.event.MessageEvent;
import nl.toolforge.karma.core.cmd.event.SimpleMessage;
import nl.toolforge.karma.core.cmd.impl.ListManifests;
import nl.toolforge.karma.core.manifest.Manifest;
import nl.toolforge.karma.core.manifest.ManifestException;
import nl.toolforge.karma.core.manifest.ManifestHeader;
import org.apache.commons.lang.StringUtils;

import java.util.ArrayList;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import java.util.Set;

/**
 * Command line interface implementation of the {@link ListManifests} command.
 *
 * @author D.A. Smedes
 * @author W.H. Schraal
 * @version $Id$
 */
public class ListManifestsImpl extends ListManifests {

    private CommandResponse response = new CommandResponse();

    public ListManifestsImpl(CommandDescriptor descriptor) throws ManifestException {
        super(descriptor);
    }

    public void execute() throws CommandException {

        super.execute();

        Set headers = getHeaders();

        if (headers.size() == 0) {
            response.addEvent(
                    new MessageEvent(this, new SimpleMessage("No manifests found for this working context.")));
            response.addEvent(new MessageEvent(this,
                    new SimpleMessage("TIP : Try updating the manifest store with the `update-admin`-command.")));
        } else {

            Iterator manifestsIterator = headers.iterator();
            ManifestHeader header;

            Manifest currentManifest = getContext().getCurrentManifest();

            StringBuffer buffer = new StringBuffer();

            buffer.append("\nManifests for working context `" + getWorkingContext().getName() + "`:\n\n");

            String h1 = "Type";
            int MAX_TYPE_LENGTH = 13;

            String h2 = "Name";
            int MAX_NAME_LENGTH = 30;

            buffer.append(h1 + StringUtils.repeat(" ", 13 - h1.length()) + " | ");
            buffer.append(h2 + StringUtils.repeat(" ", 32 - h1.length()) + "\n");
            buffer.append(StringUtils.repeat("_", 71) + "\n");

            List manifestList = new ArrayList();

            while (manifestsIterator.hasNext()) {

                header = (ManifestHeader) manifestsIterator.next();

                String typeSpaces = StringUtils.repeat(" ", MAX_TYPE_LENGTH - header.getType().length());
                String nameSpaces = StringUtils.repeat(" ", MAX_NAME_LENGTH - header.getName().length());

                if ((currentManifest != null) && header.getName().equals(currentManifest.getName())) {
                    manifestList.add(header.getType() + typeSpaces + " | " + header.getName() + nameSpaces
                            + " ** current manifest **\n");
                } else {
                    manifestList.add(header.getType() + typeSpaces + " | " + header.getName() + nameSpaces + "\n");
                }
            }

            Collections.sort(manifestList);

            manifestsIterator = manifestList.iterator();
            while (manifestsIterator.hasNext()) {
                buffer.append((String) manifestsIterator.next());
            }
            response.addEvent(new MessageEvent(this, new SimpleMessage(buffer.toString())));
        }

    }

    public CommandResponse getCommandResponse() {
        return this.response;
    }

}