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 */ 020 021 package org.apache.directory.server.changepw.io; 022 023 024 import java.io.IOException; 025 import java.nio.ByteBuffer; 026 027 import org.apache.directory.server.changepw.messages.ChangePasswordError; 028 import org.apache.directory.server.kerberos.shared.io.encoder.ErrorMessageEncoder; 029 import org.apache.directory.server.kerberos.shared.messages.ErrorMessage; 030 031 032 /** 033 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> 034 * @version $Rev: 546375 $, $Date: 2007-06-12 06:05:00 +0200 (Tue, 12 Jun 2007) $ 035 */ 036 public class ChangePasswordErrorEncoder 037 { 038 private static final int HEADER_LENGTH = 6; 039 040 041 /** 042 * Encodes a {@link ChangePasswordError} into a {@link ByteBuffer}. 043 * 044 * @param buf 045 * @param message 046 * @throws IOException 047 */ 048 public void encode( ByteBuffer buf, ChangePasswordError message ) throws IOException 049 { 050 // Build error message bytes 051 ErrorMessage errorMessage = message.getErrorMessage(); 052 ErrorMessageEncoder errorEncoder = new ErrorMessageEncoder(); 053 byte[] errorBytes = errorEncoder.encode( errorMessage ); 054 055 short messageLength = ( short ) ( HEADER_LENGTH + errorBytes.length ); 056 buf.putShort( messageLength ); 057 058 short protocolVersion = 1; 059 buf.putShort( protocolVersion ); 060 061 short zeroIndicatesError = 0; 062 buf.putShort( zeroIndicatesError ); 063 064 buf.put( errorBytes ); 065 } 066 }