org.bouncycastle.asn1.esf.SignerAttribute Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of bcutil-jdk15on Show documentation
The Bouncy Castle Java APIs for ASN.1 extension and utility APIs used to support bcpkix and bctls. This jar contains APIs for JDK 1.5 and up.
The newest version!
package org.bouncycastle.asn1.esf;

import java.util.Enumeration;

import org.bouncycastle.asn1.ASN1EncodableVector;
import org.bouncycastle.asn1.ASN1Object;
import org.bouncycastle.asn1.ASN1Primitive;
import org.bouncycastle.asn1.ASN1Sequence;
import org.bouncycastle.asn1.ASN1TaggedObject;
import org.bouncycastle.asn1.DERSequence;
import org.bouncycastle.asn1.DERTaggedObject;
import org.bouncycastle.asn1.x509.Attribute;
import org.bouncycastle.asn1.x509.AttributeCertificate;


public class SignerAttribute
    extends ASN1Object
{
    private Object[] values;

    public static SignerAttribute getInstance(
        Object o)
    {
        if (o instanceof SignerAttribute)
        {
            return (SignerAttribute) o;
        }
        else if (o != null)
        {
            return new SignerAttribute(ASN1Sequence.getInstance(o));
        }

        return null;
    }

    private SignerAttribute(
        ASN1Sequence seq)
    {
        int index = 0;
        values = new Object[seq.size()];

        for (Enumeration e = seq.getObjects(); e.hasMoreElements();)
        {
            ASN1TaggedObject taggedObject = ASN1TaggedObject.getInstance(e.nextElement());

            if (taggedObject.getTagNo() == 0)
            {
                ASN1Sequence attrs = ASN1Sequence.getInstance(taggedObject, true);
                Attribute[]  attributes = new Attribute[attrs.size()];

                for (int i = 0; i != attributes.length; i++)
                {
                    attributes[i] = Attribute.getInstance(attrs.getObjectAt(i));
                }
                values[index] = attributes;
            }
            else if (taggedObject.getTagNo() == 1)
            {
                values[index] = AttributeCertificate.getInstance(ASN1Sequence.getInstance(taggedObject, true));
            }
            else
            {
                throw new IllegalArgumentException("illegal tag: " + taggedObject.getTagNo());
            }
            index++;
        }
    }

    public SignerAttribute(
        Attribute[] claimedAttributes)
    {
        this.values = new Object[1];
        this.values[0] = claimedAttributes;
    }

    public SignerAttribute(
        AttributeCertificate certifiedAttributes)
    {
        this.values = new Object[1];
        this.values[0] = certifiedAttributes;
    }

    /**
     * Return the sequence of choices - the array elements will either be of
     * type Attribute[] or AttributeCertificate depending on what tag was used.
     *
     * @return array of choices.
     */
    public Object[] getValues()
    {
        Object[] rv = new Object[values.length];

        System.arraycopy(values, 0, rv, 0, rv.length);

        return rv;
    }

    /**
     *
     *      *  SignerAttribute ::= SEQUENCE OF CHOICE {
     *      claimedAttributes   [0] ClaimedAttributes,
     *      certifiedAttributes [1] CertifiedAttributes }
     *
     *  ClaimedAttributes ::= SEQUENCE OF Attribute
     *  CertifiedAttributes ::= AttributeCertificate -- as defined in RFC 3281: see clause 4.1.
     * 
     */
    public ASN1Primitive toASN1Primitive()
    {
        ASN1EncodableVector v = new ASN1EncodableVector(values.length);

        for (int i = 0; i != values.length; i++)
        {
            if (values[i] instanceof Attribute[])
            {
                v.add(new DERTaggedObject(0, new DERSequence((Attribute[])values[i])));
            }
            else
            {
                v.add(new DERTaggedObject(1, (AttributeCertificate)values[i]));
            }
        }

        return new DERSequence(v);
    }
}