DistributionPointName.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.ASN1Set;
8import org.bouncycastle.asn1.ASN1TaggedObject;
9import org.bouncycastle.asn1.DERTaggedObject;
10
11/**
12 * The DistributionPointName object.
13 * <pre>
14 * DistributionPointName ::= CHOICE {
15 *     fullName                 [0] GeneralNames,
16 *     nameRelativeToCRLIssuer  [1] RDN
17 * }
18 * </pre>
19 */
20public class DistributionPointName
21    extends ASN1Object
22    implements ASN1Choice
23{
24    ASN1Encodable        name;
25    int                 type;
26
27    public static final int FULL_NAME = 0;
28    public static final int NAME_RELATIVE_TO_CRL_ISSUER = 1;
29
30    public static DistributionPointName getInstance(
31        ASN1TaggedObject obj,
32        boolean          explicit)
33    {
34        return getInstance(ASN1TaggedObject.getInstance(obj, true));
35    }
36
37    public static DistributionPointName getInstance(
38        Object  obj)
39    {
40        if (obj == null || obj instanceof DistributionPointName)
41        {
42            return (DistributionPointName)obj;
43        }
44        else if (obj instanceof ASN1TaggedObject)
45        {
46            return new DistributionPointName((ASN1TaggedObject)obj);
47        }
48
49        throw new IllegalArgumentException("unknown object in factory: " + obj.getClass().getName());
50    }
51
52    public DistributionPointName(
53        int             type,
54        ASN1Encodable   name)
55    {
56        this.type = type;
57        this.name = name;
58    }
59
60    public DistributionPointName(
61        GeneralNames name)
62    {
63        this(FULL_NAME, name);
64    }
65
66    /**
67     * Return the tag number applying to the underlying choice.
68     *
69     * @return the tag number for this point name.
70     */
71    public int getType()
72    {
73        return this.type;
74    }
75
76    /**
77     * Return the tagged object inside the distribution point name.
78     *
79     * @return the underlying choice item.
80     */
81    public ASN1Encodable getName()
82    {
83        return (ASN1Encodable)name;
84    }
85
86    public DistributionPointName(
87        ASN1TaggedObject    obj)
88    {
89        this.type = obj.getTagNo();
90
91        if (type == 0)
92        {
93            this.name = GeneralNames.getInstance(obj, false);
94        }
95        else
96        {
97            this.name = ASN1Set.getInstance(obj, false);
98        }
99    }
100
101    public ASN1Primitive toASN1Primitive()
102    {
103        return new DERTaggedObject(false, type, name);
104    }
105
106    public String toString()
107    {
108        String       sep = System.getProperty("line.separator");
109        StringBuffer buf = new StringBuffer();
110        buf.append("DistributionPointName: [");
111        buf.append(sep);
112        if (type == FULL_NAME)
113        {
114            appendObject(buf, sep, "fullName", name.toString());
115        }
116        else
117        {
118            appendObject(buf, sep, "nameRelativeToCRLIssuer", name.toString());
119        }
120        buf.append("]");
121        buf.append(sep);
122        return buf.toString();
123    }
124
125    private void appendObject(StringBuffer buf, String sep, String name, String value)
126    {
127        String       indent = "    ";
128
129        buf.append(indent);
130        buf.append(name);
131        buf.append(":");
132        buf.append(sep);
133        buf.append(indent);
134        buf.append(indent);
135        buf.append(value);
136        buf.append(sep);
137    }
138}
139