Example usage for org.apache.commons.vfs.cache DefaultFilesCache DefaultFilesCache

Introduction

In this page you can find the example usage for org.apache.commons.vfs.cache DefaultFilesCache DefaultFilesCache.

Prototype

DefaultFilesCache

Source Link

Usage

From source file:com.threecrickets.sincerity.util.IoUtil.java

/**
 * Unpacks all files in an archive using Apache Commons VFS.
 * <p>/*from   w w  w . jav  a  2  s  .  c om*/
 * Supported formats: zip, tar.gz/tgz, tar.bz2.
 * 
 * @param archiveFile
 *        The archive file
 * @param destinationDir
 *        The destination directory
 * @param workDir
 *        The work directory
 * @throws IOException
 *         In case of an I/O error
 */
public static void unpack(File archiveFile, File destinationDir, File workDir) throws IOException {
    String scheme = null;
    String name = archiveFile.getName();
    DefaultFileSystemManager manager = new DefaultFileSystemManager();
    try {
        boolean untar = false;
        if (name.endsWith(".zip")) {
            scheme = "zip:";
            manager.addProvider("zip", new ZipFileProvider());
        } else if (name.endsWith(".tar.gz") || name.endsWith(".tgz")) {
            scheme = "gz:";
            untar = true;
            manager.addProvider("tar", new TarFileProvider());
            manager.addProvider("gz", new GzipFileProvider());
            manager.addProvider("tgz", new TgzFileProvider());
        } else if (name.endsWith(".tar.bz2")) {
            scheme = "bz2:";
            untar = true;
            manager.addProvider("tar", new TarFileProvider());
            manager.addProvider("bz2", new Bzip2FileProvider());
            manager.addProvider("tbz2", new Tbz2FileProvider());
        }

        if (scheme != null) {
            DefaultFileReplicator replicator = new DefaultFileReplicator(workDir);
            replicator.init();
            manager.setReplicator(replicator);
            manager.setTemporaryFileStore(replicator);
            DefaultLocalFileProvider fileProvider = new DefaultLocalFileProvider();
            manager.addProvider("file", fileProvider);
            manager.setDefaultProvider(fileProvider);
            manager.setFilesCache(new DefaultFilesCache());
            manager.init();

            String path = scheme + archiveFile.toURI();
            FileObject fileObject = manager.resolveFile(path);
            FileObject[] children = fileObject.getChildren();
            if (untar && children.length > 0) {
                FileObject tar = manager
                        .resolveFile(new File(workDir, children[0].getName().getBaseName()).toURI().toString());
                org.apache.commons.vfs.FileUtil.copyContent(children[0], tar);
                tar = manager.resolveFile("tar:" + tar.getName());
                children = tar.getChildren();
            }

            for (FileObject child : children)
                copyRecursive(manager, child, manager.resolveFile(destinationDir.toURI().toString()));
        }
    } finally {
        manager.close();
    }
}

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From source file:com.threecrickets.sincerity.util.IoUtil.java

/**
 * Copies a complete subdirectory tree using Apache Commons VFS.
 * //w  w w  .j  a  va  2s .c  o  m
 * @param fromDir
 *        The source directory
 * @param toDir
 *        The target directory
 * @throws IOException
 *         In case of an I/O error
 */
public static void copyRecursive(File fromDir, File toDir) throws IOException {
    DefaultFileSystemManager manager = new DefaultFileSystemManager();
    try {
        DefaultLocalFileProvider fileProvider = new DefaultLocalFileProvider();
        manager.addProvider("file", fileProvider);
        manager.setDefaultProvider(fileProvider);
        manager.setFilesCache(new DefaultFilesCache());
        manager.init();
        copyRecursive(manager, manager.resolveFile(fromDir.toURI().toString()),
                manager.resolveFile(toDir.toURI().toString()));
    } finally {
        manager.close();
    }
}

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