001 /**
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements. See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License. You may obtain a copy of the License at
008 *
009 * http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017
018 package org.apache.geronimo.util.asn1.x509;
019
020 import java.util.Enumeration;
021
022 import org.apache.geronimo.util.asn1.ASN1Encodable;
023 import org.apache.geronimo.util.asn1.ASN1EncodableVector;
024 import org.apache.geronimo.util.asn1.ASN1Sequence;
025 import org.apache.geronimo.util.asn1.ASN1TaggedObject;
026 import org.apache.geronimo.util.asn1.DERObject;
027 import org.apache.geronimo.util.asn1.DERSequence;
028 import org.apache.geronimo.util.asn1.DERTaggedObject;
029
030 public class NameConstraints
031 extends ASN1Encodable
032 {
033 ASN1Sequence permitted, excluded;
034
035 public NameConstraints(
036 ASN1Sequence seq)
037 {
038 Enumeration e = seq.getObjects();
039 while (e.hasMoreElements())
040 {
041 ASN1TaggedObject o = (ASN1TaggedObject)e.nextElement();
042 switch (o.getTagNo())
043 {
044 case 0:
045 permitted = ASN1Sequence.getInstance(o, false);
046 break;
047 case 1:
048 excluded = ASN1Sequence.getInstance(o, false);
049 break;
050 }
051 }
052 }
053
054 public ASN1Sequence getPermittedSubtrees()
055 {
056 return permitted;
057 }
058
059 public ASN1Sequence getExcludedSubtrees()
060 {
061 return excluded;
062 }
063
064 /*
065 * NameConstraints ::= SEQUENCE {
066 * permittedSubtrees [0] GeneralSubtrees OPTIONAL,
067 * excludedSubtrees [1] GeneralSubtrees OPTIONAL }
068 */
069 public DERObject toASN1Object()
070 {
071 ASN1EncodableVector v = new ASN1EncodableVector();
072
073 if (permitted != null)
074 {
075 v.add(new DERTaggedObject(false, 0, permitted));
076 }
077
078 if (excluded != null)
079 {
080 v.add(new DERTaggedObject(false, 1, excluded));
081 }
082
083 return new DERSequence(v);
084 }
085 }