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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  
18  package org.apache.commons.net.ftp;
19  
20  /**
21   * I acquire a command added in FTPS.
22   * @since 2.0
23   */
24  public final class FTPSCommand {
25      public static final int AUTH = 0;
26      public static final int ADAT = 1;
27      public static final int PBSZ = 2;
28      public static final int PROT = 3;
29      public static final int CCC = 4;
30  
31      public static final int AUTHENTICATION_SECURITY_MECHANISM = AUTH;
32      public static final int AUTHENTICATION_SECURITY_DATA = ADAT;
33      public static final int PROTECTION_BUFFER_SIZE = PBSZ;
34      public static final int DATA_CHANNEL_PROTECTION_LEVEL = PROT;
35      public static final int CLEAR_COMMAND_CHANNEL = CCC;
36  
37      static final String[] _commands = {"AUTH","ADAT","PBSZ","PROT","CCC"};
38  
39      /**
40       * Retrieve the FTPS command string corresponding to a specified
41       * command code.
42       * <p>
43       * @param command The command code.
44       * @return The FTPS command string corresponding to a specified 
45       *  command code.
46       */
47      public static final String getCommand(int command) {
48          return _commands[command];
49      }
50  }