de.joinout.criztovyl.tools.CloneUtils.java Source code

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Here is the source code for de.joinout.criztovyl.tools.CloneUtils.java

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/**
This is a part of my tool collection.
Copyright (C) 2014 Christoph "criztovyl" Schulz
    
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
    
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.
    
You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package de.joinout.criztovyl.tools;

import java.io.IOException;

import org.apache.commons.io.FileUtils;

import de.joinout.criztovyl.tools.file.Path;
import de.joinout.criztovyl.tools.files.FileList;

/**
 * Copies files and directories and keeps the modification time.
 * @author criztovyl
 * 
 */
public class CloneUtils {

    /**
     * Pass-through to {@link #cloneDirectory(Path, Path)} by creating {@link Path}s from the {@link String}s.
     * @param src the source path {@link String}
     * @param target the target path {@link String}
     * @throws IOException If an I/O error occurs
     * @see  #cloneDirectory(Path, Path)
     */
    public static void cloneDirectory(String src, String target) throws IOException {
        cloneDirectory(new Path(src), new Path(target));

    }

    /**
     * Copies a directory to a different one and keep all modification times.
     * @see #cloneFile(Path, Path) 
     * @param directory
     *            the source
     * @param target
     *            the target
     * @throws IOException If an I/O error occurs
     */
    public static void cloneDirectory(Path directory, Path target) throws IOException {

        // Set up lost for src
        final FileList fl = new FileList(directory).relative();

        // Iterate over files
        for (final Path path : fl) {

            // Create src and target path
            final Path targetP = target.append(path).realPath();
            final Path srcP = fl.getDirectory().append(path);

            // Clone (existing) files only
            if (srcP.getFile().isFile())
                CloneUtils.cloneFile(srcP, targetP);
        }

    }

    /**
     * Pass-through to {@link #cloneFile(Path, Path)} by creating {@link Path}s from the {@link String}s.
     * @param src the source path {@link String}
     * @param target the target path {@link String}
     * @throws IOException If an I/O error occurs
     */
    public static void cloneFile(String src, String target) throws IOException {
        cloneFile(new Path(src), new Path(target));
    }

    /**
     * Copies a file and keep the same modification date/time.
     * @param src
     *            the source path
     * @param target
     *            the target path
     * @throws IOException If an I/O error occurs
     */
    public static void cloneFile(Path src, Path target) throws IOException {

        // Cancel if is no file
        if (!src.getFile().isFile())
            return;

        // Copy file
        FileUtils.copyFile(src.getFile(), target.getFile());

        // Long is not accurate enough, so re-set lastModifed @ src file
        src.getFile().setLastModified(src.getFile().lastModified());

        // Copy lastModified to target file
        target.getFile().setLastModified(src.getFile().lastModified());

    }
}