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    1   /*
    2    * Licensed to the Apache Software Foundation (ASF) under one or more
    3    * contributor license agreements.  See the NOTICE file distributed with
    4    * this work for additional information regarding copyright ownership.
    5    * The ASF licenses this file to You under the Apache License, Version 2.0
    6    * (the "License"); you may not use this file except in compliance with
    7    * the License.  You may obtain a copy of the License at
    8    *
    9    *      http://www.apache.org/licenses/LICENSE-2.0
    10   *
    11   * Unless required by applicable law or agreed to in writing, software
    12   * distributed under the License is distributed on an "AS IS" BASIS,
    13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    14   * See the License for the specific language governing permissions and
    15   * limitations under the License.
    16   */
    17  package org.apache.commons.vfs.provider.compressed;
    18
    19  import org.apache.commons.vfs.FileName;
    20  import org.apache.commons.vfs.FileObject;
    21  import org.apache.commons.vfs.FileSystem;
    22  import org.apache.commons.vfs.FileSystemException;
    23  import org.apache.commons.vfs.FileSystemOptions;
    24  import org.apache.commons.vfs.provider.AbstractFileSystem;
    25
    26  import java.util.Collection;
    27
    28  /***
    29   * A read-only file system for compressed files.
    30   *
    31   * @author <a href="mailto:imario@apache.org">Mario Ivankovits</a>
    32   * @version $Revision: 480428 $ $Date: 2006-11-29 07:15:24 +0100 (Mi, 29 Nov 2006) $
    33   */
    34  public abstract class CompressedFileFileSystem
    35      extends AbstractFileSystem
    36      implements FileSystem
    37  {
    38      protected CompressedFileFileSystem(final FileName rootName,
    39                                         final FileObject parentLayer,
    40                                         final FileSystemOptions fileSystemOptions)
    41          throws FileSystemException
    42      {
    43          super(rootName, parentLayer, fileSystemOptions);
    44      }
    45
    46      public void init() throws FileSystemException
    47      {
    48          super.init();
    49
    50      }
    51
    52      /***
    53       * Returns the capabilities of this file system.
    54       */
    55      protected abstract void addCapabilities(final Collection caps);
    56
    57      /***
    58       * Creates a file object.
    59       */
    60      protected abstract FileObject createFile(final FileName name) throws FileSystemException;
    61  }