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.FileUtils;
029import org.nuxeo.common.utils.Path;
030import org.nuxeo.common.utils.PathFilter;
031import org.nuxeo.runtime.deployment.preprocessor.install.Command;
032import org.nuxeo.runtime.deployment.preprocessor.install.CommandContext;
033
034/**
035 * @author <a href="mailto:[email protected]">Bogdan Stefanescu</a>
036 */
037public class CopyCommand implements Command {
038
039    protected final Path src;
040
041    protected final Path dst;
042
043    protected final Path prefix;
044
045    protected final PathFilter filter;
046
047    /**
048     * Constructor for copy command.
049     *
050     * @param src the path relative to the root container. The path will be made absolute if not already
051     * @param dst the path relative to teh root container of the destination. If it is ending with a slash '/' the
052     *            destination path is treated as a directory
053     */
054    public CopyCommand(Path src, Path dst) {
055        this(src, dst, null);
056    }
057
058    public CopyCommand(Path src, Path dst, PathFilter filter) {
059        this(src, dst, new Path("/"), filter);
060    }
061
062    public CopyCommand(Path src, Path dst, Path prefix, PathFilter filter) {
063        this.src = src;
064        this.dst = dst;
065        this.prefix = prefix;
066        this.filter = filter;
067    }
068
069    @Override
070    public void exec(CommandContext ctx) throws IOException {
071        File baseDir = ctx.getBaseDir();
072        File srcFile = new File(baseDir, ctx.expandVars(src.toString()));
073        File dstFile = new File(baseDir, ctx.expandVars(dst.toString()));
074
075        if (!srcFile.exists()) {
076            throw new FileNotFoundException("Could not find the file " + srcFile.getAbsolutePath() + " to copy.");
077        }
078
079        // canonicalize paths
080        dstFile = new File(dstFile.getCanonicalPath());
081        srcFile = new File(srcFile.getCanonicalPath());
082
083        if (!dstFile.exists()) {
084            if (dst.hasTrailingSeparator()) {
085                dstFile.mkdirs();
086            } else {
087                // make sure parent dirs exists
088                File parent = dstFile.getParentFile();
089                if (!parent.isDirectory()) {
090                    parent.mkdirs();
091                }
092            }
093        }
094        if (filter == null) {
095            if (srcFile.isDirectory() && src.hasTrailingSeparator()) {
096                FileUtils.copy(srcFile.listFiles(), dstFile);
097            } else {
098                FileUtils.copy(srcFile, dstFile);
099            }
100        } else {
101            if (srcFile.isDirectory() && src.hasTrailingSeparator()) {
102                FileUtils.copyTree(srcFile, dstFile, prefix, filter);
103            } else {
104                FileUtils.copy(srcFile, dstFile);
105            }
106        }
107    }
108
109    @Override
110    public String toString() {
111        return "copy " + src.toString() + " > " + dst.toString();
112    }
113
114    @Override
115    public String toString(CommandContext ctx) {
116        return "copy " + ctx.expandVars(src.toString()) + " > " + ctx.expandVars(dst.toString());
117    }
118
119}