1 /**
2 *
3 * Licensed to the Apache Software Foundation (ASF) under one or more
4 * contributor license agreements. See the NOTICE file distributed with
5 * this work for additional information regarding copyright ownership.
6 * The ASF licenses this file to You under the Apache License, Version 2.0
7 * (the "License"); you may not use this file except in compliance with
8 * 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, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
17 */
18
19 package org.apache.geronimo.util.asn1.x509;
20
21 import java.math.BigInteger;
22
23 import org.apache.geronimo.util.asn1.ASN1Encodable;
24 import org.apache.geronimo.util.asn1.ASN1EncodableVector;
25 import org.apache.geronimo.util.asn1.ASN1Sequence;
26 import org.apache.geronimo.util.asn1.ASN1TaggedObject;
27 import org.apache.geronimo.util.asn1.DERInteger;
28 import org.apache.geronimo.util.asn1.DERObject;
29 import org.apache.geronimo.util.asn1.DERSequence;
30 import org.apache.geronimo.util.asn1.DERTaggedObject;
31
32 public class GeneralSubtree
33 extends ASN1Encodable
34 {
35 private GeneralName base;
36 private DERInteger minimum;
37 private DERInteger maximum;
38
39 public GeneralSubtree(
40 ASN1Sequence seq)
41 {
42 base = GeneralName.getInstance(seq.getObjectAt(0));
43
44 switch (seq.size())
45 {
46 case 1:
47 break;
48 case 2:
49 ASN1TaggedObject o = (ASN1TaggedObject)seq.getObjectAt(1);
50 switch (o.getTagNo())
51 {
52 case 0 :
53 minimum = DERInteger.getInstance(o, false);
54 break;
55 case 1 :
56 maximum = DERInteger.getInstance(o, false);
57 break;
58 default:
59 throw new IllegalArgumentException("Bad tag number: " + o.getTagNo());
60 }
61 break;
62 case 3 :
63 minimum = DERInteger.getInstance((ASN1TaggedObject)seq.getObjectAt(1), false);
64 maximum = DERInteger.getInstance((ASN1TaggedObject)seq.getObjectAt(2), false);
65 break;
66 default:
67 throw new IllegalArgumentException("Bad sequence size: " + seq.size());
68 }
69 }
70
71 public static GeneralSubtree getInstance(
72 ASN1TaggedObject o,
73 boolean explicit)
74 {
75 return new GeneralSubtree(ASN1Sequence.getInstance(o, explicit));
76 }
77
78 public static GeneralSubtree getInstance(
79 Object obj)
80 {
81 if (obj == null)
82 {
83 return null;
84 }
85
86 if (obj instanceof GeneralSubtree)
87 {
88 return (GeneralSubtree)obj;
89 }
90
91 return new GeneralSubtree(ASN1Sequence.getInstance(obj));
92 }
93
94 public GeneralName getBase()
95 {
96 return base;
97 }
98
99 public BigInteger getMinimum()
100 {
101 if (minimum == null)
102 {
103 return BigInteger.valueOf(0);
104 }
105
106 return minimum.getValue();
107 }
108
109 public BigInteger getMaximum()
110 {
111 if (maximum == null)
112 {
113 return null;
114 }
115
116 return maximum.getValue();
117 }
118
119
120
121
122
123
124
125 public DERObject toASN1Object()
126 {
127 ASN1EncodableVector v = new ASN1EncodableVector();
128
129 v.add(base);
130
131 if (minimum != null)
132 {
133 v.add(new DERTaggedObject(false, 0, minimum));
134 }
135
136 if (maximum != null)
137 {
138 v.add(new DERTaggedObject(false, 1, maximum));
139 }
140
141 return new DERSequence(v);
142 }
143 }