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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.vfs2.example.filter;
18  
19  import java.io.File;
20  
21  import org.apache.commons.vfs2.FileFilterSelector;
22  import org.apache.commons.vfs2.FileObject;
23  import org.apache.commons.vfs2.FileSystemManager;
24  import org.apache.commons.vfs2.VFS;
25  import org.apache.commons.vfs2.filter.CanReadFileFilter;
26  
27  /**
28   * Example for using {@link CanReadFileFilter}.
29   */
30  // CHECKSTYLE:OFF Example code
31  public final class CanReadFileFilterExample {
32      /**
33       * Invokes this example from the command line.
34       *
35       * @param args Arguments TODO
36       * @throws Exception If anything goes wrong.
37       */
38      public static void main(final String[] args) throws Exception {
39          final FileSystemManager fsManager = VFS.getManager();
40          final FileObject dir = fsManager.toFileObject(new File("."));
41  
42          // Example, showing how to print out a list of the current directory's
43          // readable files:
44          System.out.println("---CAN_READ---");
45          for (final FileObject file : dir.findFiles(new FileFilterSelector(CanReadFileFilter.CAN_READ))) {
46              System.out.println(file);
47          }
48  
49          // Example, showing how to print out a list of the current directory's
50          // un-readable files:
51          System.out.println("---CANNOT_READ---");
52          for (final FileObject file : dir.findFiles(new FileFilterSelector(CanReadFileFilter.CANNOT_READ))) {
53              System.out.println(file);
54          }
55  
56          // Example, showing how to print out a list of the current directory's
57          // read-only files:
58          System.out.println("---READ_ONLY---");
59          for (final FileObject file : dir.findFiles(new FileFilterSelector(CanReadFileFilter.READ_ONLY))) {
60              System.out.println(file);
61          }
62  
63      }
64  
65      private CanReadFileFilterExample() {
66          /* main class not instantiated. */
67      }
68  
69  }
70  // CHECKSTYLE:ON