gshell-support/gshell-vfs/src/main/java/org/apache/geronimo/gshell/vfs/FileObjects.java

/*
 * 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.
 */

package org.apache.geronimo.gshell.vfs;

import org.apache.commons.vfs.FileObject;
import org.apache.commons.vfs.FileSystemException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * Utility methods for operating on {@link FileObject} instances.
 *
 * @version $Rev$ $Date$
 */
public class FileObjects
{
    private static final Logger log = LoggerFactory.getLogger(FileObjects.class);

    public static boolean hasChildren(final FileObject file) throws FileSystemException {
        assert file != null;

        if (file.getType().hasChildren()) {
            FileObject[] children = file.getChildren();
            
            if (children != null && children.length != 0) {
                return true;
            }
        }

        return false;
    }

    public static void close(final FileObject file) {
        if (file != null) {
            try {
                file.close();
            }
            catch (FileSystemException e) {
                log.trace("Failed to close file: " + file, e);
            }
        }
    }

    public static void closeAll(final FileObject... files) {
        if (files != null && files.length != 0) {
            for (FileObject file : files) {
                close(file);
            }
        }
    }
}