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.File;
023import java.io.FileNotFoundException;
024import java.io.IOException;
025
026import org.nuxeo.common.utils.Path;
027import org.nuxeo.common.utils.PathFilter;
028import org.nuxeo.runtime.deployment.preprocessor.install.Command;
029import org.nuxeo.runtime.deployment.preprocessor.install.CommandContext;
030
031/**
032 * @author <a href="mailto:bs@nuxeo.com">Bogdan Stefanescu</a>
033 */
034public class MoveCommand implements Command {
035
036    protected final Path src;
037
038    protected final Path dst;
039
040    protected final PathFilter filter;
041
042    /**
043     * Constructor for copy command.
044     *
045     * @param src the path relative to the root container. The path will be made absolute if not already
046     * @param dst the path relative to teh root container of the destination. If it is ending with a slash '/' the
047     *            destination path is treated as a directory
048     */
049    public MoveCommand(Path src, Path dst) {
050        this(src, dst, null);
051    }
052
053    public MoveCommand(Path src, Path dst, PathFilter filter) {
054        this.src = src;
055        this.dst = dst;
056        this.filter = filter;
057    }
058
059    @Override
060    public void exec(CommandContext ctx) throws IOException {
061        File baseDir = ctx.getBaseDir();
062        File srcFile = new File(baseDir, ctx.expandVars(src.toString()));
063        File dstFile = new File(baseDir, ctx.expandVars(dst.toString()));
064
065        if (!srcFile.exists()) {
066            throw new FileNotFoundException("Could not find the file " + srcFile.getAbsolutePath() + " to move.");
067        }
068
069        if (filter != null && !filter.accept(new Path(dstFile.getAbsolutePath()))) {
070            return;
071        }
072
073        if (!dstFile.exists()) {
074            if (dst.hasTrailingSeparator()) {
075                dstFile.mkdirs();
076            } else {
077                // make sure parent dirs exists
078                File parent = dstFile.getParentFile();
079                if (!parent.isDirectory()) {
080                    parent.mkdirs();
081                }
082            }
083        }
084
085        if (dstFile.exists()) {
086            dstFile.delete();
087        }
088
089        srcFile.renameTo(dstFile);
090    }
091
092    @Override
093    public String toString() {
094        return "copy " + src.toString() + " > " + dst.toString();
095    }
096
097    @Override
098    public String toString(CommandContext ctx) {
099        return "copy " + ctx.expandVars(src.toString()) + " > " + ctx.expandVars(dst.toString());
100    }
101
102}