001 /* 002 * Licensed to the Apache Software Foundation (ASF) under one 003 * or more contributor license agreements. See the NOTICE file 004 * distributed with this work for additional information 005 * regarding copyright ownership. The ASF licenses this file 006 * to you under the Apache License, Version 2.0 (the 007 * "License"); you may not use this file except in compliance 008 * with the License. You may obtain a copy of the License at 009 * 010 * http://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, 013 * software distributed under the License is distributed on an 014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 015 * KIND, either express or implied. See the License for the 016 * specific language governing permissions and limitations 017 * under the License. 018 * 019 */ 020 package org.apache.directory.server.changepw.io; 021 022 023 import java.io.IOException; 024 import java.nio.ByteBuffer; 025 026 import org.apache.directory.server.changepw.messages.ChangePasswordReply; 027 import org.apache.directory.server.changepw.messages.ChangePasswordReplyModifier; 028 import org.apache.directory.server.kerberos.shared.io.decoder.ApplicationReplyDecoder; 029 import org.apache.directory.server.kerberos.shared.io.decoder.PrivateMessageDecoder; 030 import org.apache.directory.server.kerberos.shared.messages.application.ApplicationReply; 031 import org.apache.directory.server.kerberos.shared.messages.application.PrivateMessage; 032 033 034 /** 035 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> 036 * @version $Rev$, $Date$ 037 */ 038 public class ChangePasswordReplyDecoder 039 { 040 private static final int HEADER_LENGTH = 6; 041 042 043 /** 044 * Decodes a {@link ByteBuffer} into a {@link ChangePasswordReply}. 045 * 046 * @param buf 047 * @return The {@link ChangePasswordReply}. 048 * @throws IOException 049 */ 050 public ChangePasswordReply decode( ByteBuffer buf ) throws IOException 051 { 052 ChangePasswordReplyModifier modifier = new ChangePasswordReplyModifier(); 053 054 short messageLength = buf.getShort(); 055 short protocolVersion = buf.getShort(); 056 short encodedAppReplyLength = buf.getShort(); 057 058 modifier.setProtocolVersionNumber( protocolVersion ); 059 060 byte[] encodedAppReply = new byte[encodedAppReplyLength]; 061 buf.get( encodedAppReply ); 062 063 ApplicationReplyDecoder appDecoder = new ApplicationReplyDecoder(); 064 ApplicationReply applicationReply = appDecoder.decode( encodedAppReply ); 065 modifier.setApplicationReply( applicationReply ); 066 067 int privateBytesLength = messageLength - HEADER_LENGTH - encodedAppReplyLength; 068 byte[] encodedPrivateMessage = new byte[privateBytesLength]; 069 buf.get( encodedPrivateMessage ); 070 071 PrivateMessageDecoder privateDecoder = new PrivateMessageDecoder(); 072 PrivateMessage privateMessage = privateDecoder.decode( encodedPrivateMessage ); 073 modifier.setPrivateMessage( privateMessage ); 074 075 return modifier.getChangePasswordReply(); 076 } 077 }