001/*
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements.  See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License.  You may obtain a copy of the License at
008 *
009 *      http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017package org.apache.commons.vfs2.provider.gzip;
018
019import java.util.Arrays;
020import java.util.Collection;
021import java.util.Collections;
022
023import org.apache.commons.vfs2.Capability;
024import org.apache.commons.vfs2.FileName;
025import org.apache.commons.vfs2.FileObject;
026import org.apache.commons.vfs2.FileSystem;
027import org.apache.commons.vfs2.FileSystemException;
028import org.apache.commons.vfs2.FileSystemOptions;
029import org.apache.commons.vfs2.provider.compressed.CompressedFileFileProvider;
030
031/**
032 * Provides access to the content of Gzip files.
033 */
034public class GzipFileProvider extends CompressedFileFileProvider {
035
036    /**
037     * Capabilities.
038     */
039    protected static final Collection<Capability> capabilities = Collections.unmodifiableCollection(Arrays.asList(Capability.GET_LAST_MODIFIED,
040        Capability.GET_TYPE, Capability.LIST_CHILDREN, Capability.WRITE_CONTENT, Capability.READ_CONTENT, Capability.URI, Capability.COMPRESS));
041
042    /**
043     * Constructs a new instance.
044     */
045    public GzipFileProvider() {
046    }
047
048    @Override
049    protected FileSystem createFileSystem(final FileName name, final FileObject file,
050            final FileSystemOptions fileSystemOptions) throws FileSystemException {
051        return new GzipFileSystem(name, file, fileSystemOptions);
052    }
053
054    @Override
055    public Collection<Capability> getCapabilities() {
056        return capabilities;
057    }
058}