org.codehaus.mojo.vfs.internal.DefaultVfsFileSetManager.java Source code

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Here is the source code for org.codehaus.mojo.vfs.internal.DefaultVfsFileSetManager.java

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package org.codehaus.mojo.vfs.internal;

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

import java.util.List;

import org.apache.commons.vfs2.FileObject;
import org.apache.commons.vfs2.FileSystemException;
import org.apache.commons.vfs2.Selectors;
import org.codehaus.mojo.vfs.VfsFileSet;
import org.codehaus.mojo.vfs.VfsFileSetManager;
import org.codehaus.mojo.vfs.VfsUtils;

public class DefaultVfsFileSetManager implements VfsFileSetManager {

    public List<FileObject> list(VfsFileSet fileSet) throws FileSystemException {
        VfsDirectoryScanner scanner = createScanner(fileSet);
        return scanner.scan();
    }

    public void delete(VfsFileSet fileSet) throws FileSystemException {
        VfsDirectoryScanner scanner = createScanner(fileSet);
        List<FileObject> fos = scanner.scan();
        for (FileObject fo : fos) {
            // TODO check for return error
            fo.delete();
        }

    }

    public void move(VfsFileSet fileSet) throws FileSystemException {
        VfsDirectoryScanner scanner = createScanner(fileSet);
        List<FileObject> fos = scanner.scan();

        // better to use FileObject.move()??
        copy(fileSet.getSource(), fileSet.getDestination(), fos, fileSet.isOverwrite());

        for (FileObject fo : fos) {
            fo.delete();
        }

    }

    public void copy(VfsFileSet fileSet) throws FileSystemException {
        if (copySingle(fileSet)) {
            return;
        }

        VfsDirectoryScanner scanner = createScanner(fileSet);
        List<FileObject> fos = scanner.scan();

        copy(fileSet.getSource(), fileSet.getDestination(), fos, fileSet.isOverwrite());
    }

    /**
     * Workaround to support single copy for those vfs protocol not support directory listing
     *
     * @param fileset
     * @return
     * @throws FileSystemException
     */
    private boolean copySingle(VfsFileSet fileset) throws FileSystemException {

        if (fileset.getExcludes() != null && fileset.getExcludes().length != 0) {
            return false;
        }

        for (String include : fileset.getIncludes()) {
            if (include.contains("*") || include.contains("?")) {
                return false;
            }
        }

        for (String include : fileset.getIncludes()) {
            if (!include.contains("*") && !include.contains("?")) {
                FileObject fo = fileset.getDestination().resolveFile(include);
                FileObject fromFile = fileset.getSource().resolveFile(include);

                copyFile(fromFile, fo, fileset.isOverwrite());
            }
        }

        return true;
    }

    private void copy(FileObject fromDir, FileObject toDir, List<FileObject> fromFiles, boolean overwrite)
            throws FileSystemException {
        for (FileObject fromFile : fromFiles) {
            String relPath = VfsUtils.getRelativePath(fromDir, fromFile);
            FileObject toFile = toDir.resolveFile(relPath);

            copyFile(fromFile, toFile, overwrite);
        }
    }

    private void copyFile(FileObject fromFile, FileObject toFile, boolean overwrite) throws FileSystemException {
        if (overwrite || !toFile.exists()
                || fromFile.getContent().getLastModifiedTime() > toFile.getContent().getLastModifiedTime()) {
            toFile.copyFrom(fromFile, Selectors.SELECT_ALL);
        }
    }

    private static VfsDirectoryScanner createScanner(VfsFileSet fileSet) {

        VfsDirectoryScanner scanner = new DefaultVfsDirectoryScanner();
        scanner.setIncludes(fileSet.getIncludes());
        scanner.setExcludes(fileSet.getExcludes());
        scanner.setStartingDirectory(fileSet.getSource());
        scanner.setCaseSensitive(fileSet.isCaseSensitive());

        return scanner;
    }

}