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.url;
018
019import java.util.Collection;
020
021import org.apache.commons.vfs2.Capability;
022import org.apache.commons.vfs2.FileName;
023import org.apache.commons.vfs2.FileObject;
024import org.apache.commons.vfs2.FileSystemOptions;
025import org.apache.commons.vfs2.provider.AbstractFileName;
026import org.apache.commons.vfs2.provider.AbstractFileSystem;
027
028/**
029 * A File system backed by Java's URL API.
030 */
031public class UrlFileSystem extends AbstractFileSystem {
032
033    /**
034     * Constructs a new instance.
035     *
036     * @param rootName The root file name of this file system.
037     * @param fileSystemOptions Options to build this file system.
038     */
039    protected UrlFileSystem(final FileName rootName, final FileSystemOptions fileSystemOptions) {
040        super(rootName, null, fileSystemOptions);
041    }
042
043    /**
044     * Returns the capabilities of this file system.
045     */
046    @Override
047    protected void addCapabilities(final Collection<Capability> caps) {
048        caps.addAll(UrlFileProvider.capabilities);
049    }
050
051    /**
052     * Creates a file object.
053     */
054    @Override
055    protected FileObject createFile(final AbstractFileName name) {
056        return new UrlFileObject(this, name);
057    }
058}