1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one 3 * or more contributor license agreements. See the NOTICE file 4 * distributed with this work for additional information 5 * regarding copyright ownership. The ASF licenses this file 6 * to you under the Apache License, Version 2.0 (the 7 * "License"); you may not use this file except in compliance 8 * with the License. You may obtain a copy of the License at 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, 13 * software distributed under the License is distributed on an 14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 15 * KIND, either express or implied. See the License for the 16 * specific language governing permissions and limitations 17 * under the License. 18 * 19 */ 20 package org.apache.directory.api.ldap.extras.extended.ads_impl.cancel; 21 22 23 import java.nio.ByteBuffer; 24 25 import org.apache.directory.api.asn1.DecoderException; 26 import org.apache.directory.api.asn1.ber.Asn1Decoder; 27 import org.apache.directory.api.ldap.extras.extended.cancel.CancelRequest; 28 29 30 /** 31 * A decoder for Cancel. 32 * 33 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> 34 */ 35 public class CancelDecoder extends Asn1Decoder 36 { 37 /** The decoder */ 38 private static final Asn1Decoder decoder = new Asn1Decoder(); 39 40 41 /** 42 * Decode a PDU which must contain a Cancel extended operation. 43 * Note that the stream of bytes much contain a full PDU, not a partial one. 44 * 45 * @param stream The bytes to be decoded 46 * @return An Cancel object 47 * @throws DecoderException If the decoding failed 48 */ 49 public CancelRequest decode( byte[] stream ) throws DecoderException 50 { 51 ByteBuffer bb = ByteBuffer.wrap( stream ); 52 CancelContainer container = new CancelContainer(); 53 decoder.decode( bb, container ); 54 CancelRequest cancel = container.getCancel(); 55 56 // Clean the container for the next decoding 57 container.clean(); 58 59 return cancel; 60 } 61 }