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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 org.bouncycastle.asn1.ASN1Encodable;
import org.bouncycastle.asn1.ASN1Object;
import org.bouncycastle.asn1.ASN1Primitive;
import org.bouncycastle.asn1.ASN1Sequence;
import org.bouncycastle.asn1.DERSequence;
import org.bouncycastle.oer.OEROptional;


/**
 *  *     SignedDataPayload ::= SEQUENCE {
 *         data Ieee1609Dot2Data OPTIONAL,
 *         extDataHash HashedData OPTIONAL,
 *         ...
 *     }
 * 
 */
public class SignedDataPayload
    extends ASN1Object
{
    private final Ieee1609Dot2Data data;
    private final HashedData extDataHash;


    public SignedDataPayload(Ieee1609Dot2Data data, HashedData extDataHash)
    {
        this.data = data;
        this.extDataHash = extDataHash;
    }

    private SignedDataPayload(ASN1Sequence sequence)
    {
        if (sequence.size() != 2)
        {
            throw new IllegalArgumentException("expected sequence size of 2");
        }
        data = OEROptional.getValue(Ieee1609Dot2Data.class, sequence.getObjectAt(0));
        extDataHash = OEROptional.getValue(HashedData.class, sequence.getObjectAt(1));
    }


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

        return null;

    }

    public static Builder builder()
    {
        return new Builder();
    }

    public ASN1Primitive toASN1Primitive()
    {
        return new DERSequence(
            new ASN1Encodable[]{
                OEROptional.getInstance(data),
                OEROptional.getInstance(extDataHash)});
    }

    public Ieee1609Dot2Data getData()
    {
        return data;
    }

    public HashedData getExtDataHash()
    {
        return extDataHash;
    }

    public static class Builder
    {
        private Ieee1609Dot2Data data;
        private HashedData extDataHash;


        public Builder setData(Ieee1609Dot2Data data)
        {
            this.data = data;
            return this;
        }

        public Builder setExtDataHash(HashedData extDataHash)
        {
            this.extDataHash = extDataHash;
            return this;
        }

        public SignedDataPayload createSignedDataPayload()
        {
            return new SignedDataPayload(data, extDataHash);
        }
    }
}