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.FileUtils;
027import org.nuxeo.common.utils.Path;
028import org.nuxeo.common.utils.PathFilter;
029import org.nuxeo.runtime.deployment.preprocessor.install.Command;
030import org.nuxeo.runtime.deployment.preprocessor.install.CommandContext;
031
032/**
033 * @author <a href="mailto:bs@nuxeo.com">Bogdan Stefanescu</a>
034 */
035public class CopyCommand implements Command {
036
037    protected final Path src;
038
039    protected final Path dst;
040
041    protected final Path prefix;
042
043    protected final PathFilter filter;
044
045    /**
046     * Constructor for copy command.
047     *
048     * @param src the path relative to the root container. The path will be made absolute if not already
049     * @param dst the path relative to teh root container of the destination. If it is ending with a slash '/' the
050     *            destination path is treated as a directory
051     */
052    public CopyCommand(Path src, Path dst) {
053        this(src, dst, null);
054    }
055
056    public CopyCommand(Path src, Path dst, PathFilter filter) {
057        this(src, dst, new Path("/"), filter);
058    }
059
060    public CopyCommand(Path src, Path dst, Path prefix, PathFilter filter) {
061        this.src = src;
062        this.dst = dst;
063        this.prefix = prefix;
064        this.filter = filter;
065    }
066
067    @Override
068    public void exec(CommandContext ctx) throws IOException {
069        File baseDir = ctx.getBaseDir();
070        File srcFile = new File(baseDir, ctx.expandVars(src.toString()));
071        File dstFile = new File(baseDir, ctx.expandVars(dst.toString()));
072
073        if (!srcFile.exists()) {
074            throw new FileNotFoundException("Could not find the file " + srcFile.getAbsolutePath() + " to copy.");
075        }
076
077        // canonicalize paths
078        dstFile = new File(dstFile.getCanonicalPath());
079        srcFile = new File(srcFile.getCanonicalPath());
080
081        if (!dstFile.exists()) {
082            if (dst.hasTrailingSeparator()) {
083                dstFile.mkdirs();
084            } else {
085                // make sure parent dirs exists
086                File parent = dstFile.getParentFile();
087                if (!parent.isDirectory()) {
088                    parent.mkdirs();
089                }
090            }
091        }
092        if (filter == null) {
093            if (srcFile.isDirectory() && src.hasTrailingSeparator()) {
094                FileUtils.copy(srcFile.listFiles(), dstFile);
095            } else {
096                FileUtils.copy(srcFile, dstFile);
097            }
098        } else {
099            if (srcFile.isDirectory() && src.hasTrailingSeparator()) {
100                FileUtils.copyTree(srcFile, dstFile, prefix, filter);
101            } else {
102                FileUtils.copy(srcFile, dstFile);
103            }
104        }
105    }
106
107    @Override
108    public String toString() {
109        return "copy " + src.toString() + " > " + dst.toString();
110    }
111
112    @Override
113    public String toString(CommandContext ctx) {
114        return "copy " + ctx.expandVars(src.toString()) + " > " + ctx.expandVars(dst.toString());
115    }
116
117}