001/*
002 * (C) Copyright 2006-2007 Nuxeo SAS (http://nuxeo.com/) and contributors.
003 *
004 * All rights reserved. This program and the accompanying materials
005 * are made available under the terms of the GNU Lesser General Public License
006 * (LGPL) version 2.1 which accompanies this distribution, and is available at
007 * http://www.gnu.org/licenses/lgpl.html
008 *
009 * This library is distributed in the hope that it will be useful,
010 * but WITHOUT ANY WARRANTY; without even the implied warranty of
011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
012 * Lesser General Public License for more details.
013 *
014 * Contributors:
015 *     Nuxeo - initial API and implementation
016 *
017 * $Id$
018 */
019
020package org.nuxeo.runtime.deployment.preprocessor.install.commands;
021
022import java.io.IOException;
023
024import org.nuxeo.runtime.deployment.preprocessor.install.Command;
025import org.nuxeo.runtime.deployment.preprocessor.install.CommandContext;
026
027/**
028 * Sets a property that is valid along the current preprocessing context.
029 *
030 * @author <a href="mailto:bs@nuxeo.com">Bogdan Stefanescu</a>
031 */
032public class PropertyCommand implements Command {
033
034    protected final String name;
035
036    protected final String value;
037
038    public PropertyCommand(String name, String value) {
039        this.name = name;
040        this.value = value;
041    }
042
043    @Override
044    public void exec(CommandContext ctx) throws IOException {
045        if (value == null || value.length() == 0) {
046            ctx.remove(name);
047        } else {
048            ctx.put(name, value);
049        }
050    }
051
052    @Override
053    public String toString() {
054        return "set " + name + " = \"" + value + '"';
055    }
056
057    @Override
058    public String toString(CommandContext ctx) {
059        return toString();
060    }
061
062}