001/*
002 * (C) Copyright 2006-2007 Nuxeo SA (http://nuxeo.com/) and others.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *     http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 *
016 * Contributors:
017 *     Nuxeo - initial API and implementation
018 *
019 * $Id$
020 */
021
022package org.nuxeo.runtime.deployment.preprocessor.install.commands;
023
024import java.io.IOException;
025
026import org.nuxeo.runtime.deployment.preprocessor.install.Command;
027import org.nuxeo.runtime.deployment.preprocessor.install.CommandContext;
028
029/**
030 * Sets a property that is valid along the current preprocessing context.
031 *
032 * @author <a href="mailto:[email protected]">Bogdan Stefanescu</a>
033 */
034public class PropertyCommand implements Command {
035
036    protected final String name;
037
038    protected final String value;
039
040    public PropertyCommand(String name, String value) {
041        this.name = name;
042        this.value = value;
043    }
044
045    @Override
046    public void exec(CommandContext ctx) throws IOException {
047        if (value == null || value.length() == 0) {
048            ctx.remove(name);
049        } else {
050            ctx.put(name, value);
051        }
052    }
053
054    @Override
055    public String toString() {
056        return "set " + name + " = \"" + value + '"';
057    }
058
059    @Override
060    public String toString(CommandContext ctx) {
061        return toString();
062    }
063
064}