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.File;
025import java.io.FileNotFoundException;
026import java.io.IOException;
027
028import org.nuxeo.common.utils.Path;
029import org.nuxeo.common.utils.PathFilter;
030import org.nuxeo.runtime.deployment.preprocessor.install.Command;
031import org.nuxeo.runtime.deployment.preprocessor.install.CommandContext;
032
033/**
034 * @author <a href="mailto:bs@nuxeo.com">Bogdan Stefanescu</a>
035 */
036public class MoveCommand implements Command {
037
038    protected final Path src;
039
040    protected final Path dst;
041
042    protected final PathFilter filter;
043
044    /**
045     * Constructor for copy command.
046     *
047     * @param src the path relative to the root container. The path will be made absolute if not already
048     * @param dst the path relative to teh root container of the destination. If it is ending with a slash '/' the
049     *            destination path is treated as a directory
050     */
051    public MoveCommand(Path src, Path dst) {
052        this(src, dst, null);
053    }
054
055    public MoveCommand(Path src, Path dst, PathFilter filter) {
056        this.src = src;
057        this.dst = dst;
058        this.filter = filter;
059    }
060
061    @Override
062    public void exec(CommandContext ctx) throws IOException {
063        File baseDir = ctx.getBaseDir();
064        File srcFile = new File(baseDir, ctx.expandVars(src.toString()));
065        File dstFile = new File(baseDir, ctx.expandVars(dst.toString()));
066
067        if (!srcFile.exists()) {
068            throw new FileNotFoundException("Could not find the file " + srcFile.getAbsolutePath() + " to move.");
069        }
070
071        if (filter != null && !filter.accept(new Path(dstFile.getAbsolutePath()))) {
072            return;
073        }
074
075        if (!dstFile.exists()) {
076            if (dst.hasTrailingSeparator()) {
077                dstFile.mkdirs();
078            } else {
079                // make sure parent dirs exists
080                File parent = dstFile.getParentFile();
081                if (!parent.isDirectory()) {
082                    parent.mkdirs();
083                }
084            }
085        }
086
087        if (dstFile.exists()) {
088            dstFile.delete();
089        }
090
091        srcFile.renameTo(dstFile);
092    }
093
094    @Override
095    public String toString() {
096        return "copy " + src.toString() + " > " + dst.toString();
097    }
098
099    @Override
100    public String toString(CommandContext ctx) {
101        return "copy " + ctx.expandVars(src.toString()) + " > " + ctx.expandVars(dst.toString());
102    }
103
104}