AttCertIssuer.java revision e6bf3e8dfa2804891a82075cb469b736321b4827 
1package org.bouncycastle.asn1.x509;
2
3import org.bouncycastle.asn1.ASN1Choice;
4import org.bouncycastle.asn1.ASN1Encodable;
5import org.bouncycastle.asn1.ASN1Object;
6import org.bouncycastle.asn1.ASN1Primitive;
7import org.bouncycastle.asn1.ASN1Sequence;
8import org.bouncycastle.asn1.ASN1TaggedObject;
9import org.bouncycastle.asn1.DERTaggedObject;
10
11public class AttCertIssuer
12    extends ASN1Object
13    implements ASN1Choice
14{
15    ASN1Encodable   obj;
16    ASN1Primitive choiceObj;
17
18    public static AttCertIssuer getInstance(
19        Object  obj)
20    {
21        if (obj == null || obj instanceof AttCertIssuer)
22        {
23            return (AttCertIssuer)obj;
24        }
25        else if (obj instanceof V2Form)
26        {
27            return new AttCertIssuer(V2Form.getInstance(obj));
28        }
29        else if (obj instanceof GeneralNames)
30        {
31            return new AttCertIssuer((GeneralNames)obj);
32        }
33        else if (obj instanceof ASN1TaggedObject)
34        {
35            return new AttCertIssuer(V2Form.getInstance((ASN1TaggedObject)obj, false));
36        }
37        else if (obj instanceof ASN1Sequence)
38        {
39            return new AttCertIssuer(GeneralNames.getInstance(obj));
40        }
41
42        throw new IllegalArgumentException("unknown object in factory: " + obj.getClass().getName());
43    }
44
45    public static AttCertIssuer getInstance(
46        ASN1TaggedObject obj,
47        boolean          explicit)
48    {
49        return getInstance(obj.getObject()); // must be explicitly tagged
50    }
51
52    /**
53     * Don't use this one if you are trying to be RFC 3281 compliant.
54     * Use it for v1 attribute certificates only.
55     *
56     * @param names our GeneralNames structure
57     */
58    public AttCertIssuer(
59        GeneralNames  names)
60    {
61        obj = names;
62        choiceObj = obj.toASN1Primitive();
63    }
64
65    public AttCertIssuer(
66        V2Form  v2Form)
67    {
68        obj = v2Form;
69        choiceObj = new DERTaggedObject(false, 0, obj);
70    }
71
72    public ASN1Encodable getIssuer()
73    {
74        return obj;
75    }
76
77    /**
78     * Produce an object suitable for an ASN1OutputStream.
79     * <pre>
80     *  AttCertIssuer ::= CHOICE {
81     *       v1Form   GeneralNames,  -- MUST NOT be used in this
82     *                               -- profile
83     *       v2Form   [0] V2Form     -- v2 only
84     *  }
85     * </pre>
86     */
87    public ASN1Primitive toASN1Primitive()
88    {
89        return choiceObj;
90    }
91}
92