package org.bouncycastle.asn1.x509;
import org.bouncycastle.asn1.ASN1Encodable;
import org.bouncycastle.asn1.ASN1EncodableVector;
import org.bouncycastle.asn1.ASN1Object;
import org.bouncycastle.asn1.ASN1ObjectIdentifier;
import org.bouncycastle.asn1.ASN1Primitive;
import org.bouncycastle.asn1.ASN1Sequence;
import org.bouncycastle.asn1.ASN1Set;
import org.bouncycastle.asn1.DERSequence;
public class Attribute
extends ASN1Object
{
private ASN1ObjectIdentifier attrType;
private ASN1Set attrValues;
/**
* return an Attribute object from the given object.
*
* @param o the object we want converted.
* @exception IllegalArgumentException if the object cannot be converted.
*/
public static Attribute getInstance(
Object o)
{
if (o instanceof Attribute)
{
return (Attribute)o;
}
if (o != null)
{
return new Attribute(ASN1Sequence.getInstance(o));
}
return null;
}
private Attribute(
ASN1Sequence seq)
{
if (seq.size() != 2)
{
throw new IllegalArgumentException("Bad sequence size: " + seq.size());
}
attrType = ASN1ObjectIdentifier.getInstance(seq.getObjectAt(0));
attrValues = ASN1Set.getInstance(seq.getObjectAt(1));
}
public Attribute(
ASN1ObjectIdentifier attrType,
ASN1Set attrValues)
{
this.attrType = attrType;
this.attrValues = attrValues;
}
public ASN1ObjectIdentifier getAttrType()
{
return new ASN1ObjectIdentifier(attrType.getId());
}
public ASN1Encodable[] getAttributeValues()
{
return attrValues.toArray();
}
public ASN1Set getAttrValues()
{
return attrValues;
}
/**
* Produce an object suitable for an ASN1OutputStream.
* <pre>
* Attribute ::= SEQUENCE {
* attrType OBJECT IDENTIFIER,
* attrValues SET OF AttributeValue
* }
* </pre>
*/
public ASN1Primitive toASN1Primitive()
{
ASN1EncodableVector v = new ASN1EncodableVector();
v.add(attrType);
v.add(attrValues);
return new DERSequence(v);
}
}