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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.util;
18  
19  /**
20   * An enumerated type representing the modes of a random access content.
21   */
22  public enum RandomAccessMode {
23  
24      /**
25       * read.
26       */
27      READ(true, false),
28  
29      /**
30       * read/write.
31       */
32      READWRITE(true, true);
33  
34      private final boolean read;
35      private final boolean write;
36  
37      private RandomAccessMode(final boolean read, final boolean write) {
38          this.read = read;
39          this.write = write;
40      }
41  
42      public boolean requestRead() {
43          return read;
44      }
45  
46      public boolean requestWrite() {
47          return write;
48      }
49  
50      /**
51       * @return The mode String.
52       * @since 2.0
53       */
54      public String getModeString() {
55          if (requestRead()) {
56              if (requestWrite()) {
57                  return "rw"; // NON-NLS
58              }
59              return "r"; // NON-NLS
60          } else if (requestWrite()) {
61              return "w"; // NON-NLS
62          }
63  
64          return "";
65      }
66  }