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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;
import org.bouncycastle.oer.its.ieee1609dot2.basetypes.GroupLinkageValue;
import org.bouncycastle.oer.its.ieee1609dot2.basetypes.IValue;
import org.bouncycastle.oer.its.ieee1609dot2.basetypes.LinkageValue;

/**
 *  *     LinkageData ::= SEQUENCE {
 *         iCert IValue,
 *         linkage-value LinkageValue,
 *         group-linkage-value GroupLinkageValue OPTIONAL
 *     }
 * 
 */
public class LinkageData
    extends ASN1Object
{
    private final IValue iCert;
    private final LinkageValue linkageValue;
    private final GroupLinkageValue groupLinkageValue;

    public LinkageData(IValue iCert, LinkageValue linkageValue, GroupLinkageValue groupLinkageValue)
    {
        this.iCert = iCert;
        this.linkageValue = linkageValue;
        this.groupLinkageValue = groupLinkageValue;
    }

    private LinkageData(ASN1Sequence seq)
    {
        if (seq.size() != 3)
        {
            throw new IllegalArgumentException("expected sequence size of 3");
        }

        this.iCert = IValue.getInstance(seq.getObjectAt(0));
        this.linkageValue = LinkageValue.getInstance(seq.getObjectAt(1));
        this.groupLinkageValue = OEROptional.getValue(GroupLinkageValue.class, seq.getObjectAt(2));
    }

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

        return null;
    }

    public IValue getICert()
    {
        return iCert;
    }

    public LinkageValue getLinkageValue()
    {
        return linkageValue;
    }

    public GroupLinkageValue getGroupLinkageValue()
    {
        return groupLinkageValue;
    }

    public ASN1Primitive toASN1Primitive()
    {
        return new DERSequence(new ASN1Encodable[]{iCert, linkageValue, OEROptional.getInstance(groupLinkageValue)});
    }

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

    public static class Builder
    {
        private IValue iCert;
        private LinkageValue linkageValue;
        private GroupLinkageValue groupLinkageValue;

        public Builder setICert(IValue iCert)
        {
            this.iCert = iCert;
            return this;
        }

        public Builder setLinkageValue(LinkageValue linkageValue)
        {
            this.linkageValue = linkageValue;
            return this;
        }

        public Builder setGroupLinkageValue(GroupLinkageValue groupLinkageValue)
        {
            this.groupLinkageValue = groupLinkageValue;
            return this;
        }

        public LinkageData createLinkageData()
        {
            return new LinkageData(iCert, linkageValue, groupLinkageValue);
        }
    }
}