org.bouncycastle.oer.its.ieee1609dot2.ContributedExtensionBlock Maven / Gradle / Ivy

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The Bouncy Castle Java APIs for ASN.1 extension and utility APIs used to support bcpkix and bctls with the BC FIPS provider. The APIs may also be used with other providers although if being used in a FIPS context it is the responsibility of the user to ensure that any other providers used are FIPS certified and used appropriately.

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package org.bouncycastle.oer.its.ieee1609dot2;

import java.util.ArrayList;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;

import org.bouncycastle.asn1.ASN1Encodable;
import org.bouncycastle.asn1.ASN1Object;
import org.bouncycastle.asn1.ASN1Primitive;
import org.bouncycastle.asn1.ASN1Sequence;
import org.bouncycastle.oer.its.ItsUtils;
import org.bouncycastle.oer.its.etsi103097.extension.EtsiOriginatingHeaderInfoExtension;

/**
 * ContributedExtensionBlock ::= SEQUENCE {
 * contributorId IEEE1609DOT2-HEADERINFO-CONTRIBUTED-EXTENSION.
 * &id({Ieee1609Dot2HeaderInfoContributedExtensions}),
 * extns   SEQUENCE (SIZE(1..MAX)) OF IEEE1609DOT2-HEADERINFO-CONTRIBUTED-EXTENSION.
 * &Extn({Ieee1609Dot2HeaderInfoContributedExtensions}{@.contributorId})
 * }
 */
public class ContributedExtensionBlock
    extends ASN1Object
{
    private final HeaderInfoContributorId contributorId;
    private final List extns;

    public ContributedExtensionBlock(HeaderInfoContributorId contributorId, List extns)
    {
        this.contributorId = contributorId;
        this.extns = extns;
    }

    private ContributedExtensionBlock(ASN1Sequence sequence)
    {

        if (sequence.size() != 2)
        {
            throw new IllegalArgumentException("expected sequence size of 2");
        }


        contributorId = HeaderInfoContributorId.getInstance(sequence.getObjectAt(0));

        Iterator items = ASN1Sequence.getInstance(sequence.getObjectAt(1)).iterator();
        List extns = new ArrayList();

        while (items.hasNext())
        {
            extns.add(EtsiOriginatingHeaderInfoExtension.getInstance(items.next()));
        }

        this.extns = Collections.unmodifiableList(extns);


    }

    public static ContributedExtensionBlock getInstance(Object src)
    {
        if (src instanceof ContributedExtensionBlock)
        {
            return (ContributedExtensionBlock)src;
        }

        if (src != null)
        {
            return new ContributedExtensionBlock(ASN1Sequence.getInstance(src));
        }

        return null;


    }

    public ASN1Primitive toASN1Primitive()
    {
        return ItsUtils.toSequence(contributorId, ItsUtils.toSequence(extns));
    }

    public HeaderInfoContributorId getContributorId()
    {
        return contributorId;
    }

    public List getExtns()
    {
        return extns;
    }
}