1 /*
2 * Copyright 2004 The Apache Software Foundation
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 *
16 */
17 package org.apache.asn1.ber.digester.rules ;
18
19
20 import java.nio.ByteBuffer;
21
22 import org.apache.asn1.ber.TagEnum;
23
24
25 /***
26 * Rule that collects octets and leaves octets as a string on the stack.
27 *
28 * @author <a href="mailto:dev@directory.apache.org">Apache Directory
29 * Project</a>
30 * @version $Rev: 157644 $
31 */
32 public class Octets2StringRule extends PrimitiveOctetStringRule
33 {
34 public Octets2StringRule()
35 {
36 super();
37 }
38
39
40 public Octets2StringRule( TagEnum tag )
41 {
42 super( tag );
43 }
44
45
46 /* (non-Javadoc)
47 * @see org.apache.snickers.ber.Rule#finish()
48 */
49 public void finish()
50 {
51 super.finish() ;
52
53 // pop the ByteBuffer the super method pushed
54 ByteBuffer buf = ( ByteBuffer ) getDigester().pop() ;
55
56 byte[] octets = null ;
57 if ( buf.limit() == buf.capacity() && buf.hasArray() )
58 {
59 // use the backing store
60 octets = buf.array() ;
61 }
62 else
63 {
64 // copy because we don't have accessible array or data < array
65 octets = new byte[buf.remaining()] ;
66 buf.get( octets ) ;
67 }
68
69 getDigester().push( new String( octets ) ) ;
70 }
71 }