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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.provider.ftps;
18  
19  /**
20   * Protection level of the data channel in a FTPS communication.
21   * <ul>
22   * <li>C - Clear</li>
23   * <li>S - Safe</li>
24   * <li>E - Confidential</li>
25   * <li>P - Private</li>
26   * </ul>
27   *
28   * @see <a href="http://tools.ietf.org/html/rfc2228#section-3">RFC 2228, section 3</a>
29   * @since 2.1
30   */
31  public enum FtpsDataChannelProtectionLevel {
32  
33      /** Clear. */
34      C,
35  
36      /** Safe. */
37      S,
38  
39      /** Confidential. */
40      E,
41  
42      /** Private. */
43      P
44  }