Example usage for org.apache.commons.vfs2 FileSystemManager canCreateFileSystem

Introduction

In this page you can find the example usage for org.apache.commons.vfs2 FileSystemManager canCreateFileSystem.

Prototype

boolean canCreateFileSystem(FileObject file) throws FileSystemException;

Source Link

Document

Determines if a layered file system can be created for a given file.

Usage

From source file:com.seeburger.vfs2.util.VFSClassLoader.java

/**
 * Appends the specified FileObjects to the list of FileObjects to search
 * for classes and resources./*www  .  ja v a 2  s . c o  m*/
 *
 * @param manager The FileSystemManager.
 * @param files the FileObjects to append to the search path.
 * @throws FileSystemException if an error occurs.
 */
private void addFileObjects(final FileSystemManager manager, final FileObject[] files)
        throws FileSystemException {
    for (int i = 0; i < files.length; i++) {
        FileObject file = files[i];
        if (!file.exists()) {
            // Does not exist - skip
            continue;
        }

        // TODO - use federation instead
        if (file.getType().hasContent() && manager.canCreateFileSystem(file)) {
            // Use contents of the file
            file = manager.createFileSystem(file);
        }

        resources.add(file);
    }
}

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From source file:org.geoserver.backuprestore.utils.BackupUtils.java

/**
 * Extracts the archive file {@code archiveFile} to {@code targetFolder}; both shall previously exist.
 *
 * @param archiveFile/*from   w ww.ja va2  s  .  c  om*/
 * @param targetFolder
 * @throws IOException
 */
public static void extractTo(Resource archiveFile, Resource targetFolder) throws IOException {
    FileSystemManager manager = VFS.getManager();
    String sourceURI = resolveArchiveURI(archiveFile);

    FileObject source = manager.resolveFile(sourceURI);
    if (manager.canCreateFileSystem(source)) {
        source = manager.createFileSystem(source);
    }
    FileObject target = manager
            .createVirtualFileSystem(manager.resolveFile(targetFolder.dir().getAbsolutePath()));

    FileSelector selector = new AllFileSelector() {
        @Override
        public boolean includeFile(FileSelectInfo fileInfo) {
            LOGGER.fine("Uncompressing " + fileInfo.getFile().getName().getFriendlyURI());
            return true;
        }
    };
    target.copyFrom(source, selector);
    source.close();
    target.close();
    manager.closeFileSystem(source.getFileSystem());
}

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