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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.etsi102941;

import org.bouncycastle.asn1.ASN1Choice;
import org.bouncycastle.asn1.ASN1Encodable;
import org.bouncycastle.asn1.ASN1Object;
import org.bouncycastle.asn1.ASN1Primitive;
import org.bouncycastle.asn1.ASN1TaggedObject;
import org.bouncycastle.asn1.BERTags;
import org.bouncycastle.asn1.DERTaggedObject;

/**
 * CtlEntry ::= CHOICE {
 * rca   RootCaEntry,
 * ea    EaEntry,
 * aa    AaEntry,
 * dc    DcEntry,
 * tlm   TlmEntry,
 * ...
 * }
 */
public class CtlEntry
    extends ASN1Object
    implements ASN1Choice
{
    public static final int rca = 0;
    public static final int ea = 1;
    public static final int aa = 2;
    public static final int dc = 3;
    public static final int tlm = 4;

    private final int choice;
    private final ASN1Encodable ctlEntry;

    public CtlEntry(int choice, ASN1Encodable ctlEntry)
    {
        this.choice = choice;
        this.ctlEntry = ctlEntry;
    }


    private CtlEntry(ASN1TaggedObject ato)
    {
        choice = ato.getTagNo();
        switch (choice)
        {
        case rca:
            ctlEntry = RootCaEntry.getInstance(ato.getObject());
            return;
        case ea:
            ctlEntry = EaEntry.getInstance(ato.getObject());
            return;
        case aa:
            ctlEntry = AaEntry.getInstance(ato.getObject());
            return;
        case dc:
            ctlEntry = DcEntry.getInstance(ato.getObject());
            return;
        case tlm:
            ctlEntry = TlmEntry.getInstance(ato.getObject());
            return;
        }

        throw new IllegalArgumentException("invalid choice value " + choice);

    }


    public static CtlEntry getInstance(Object o)
    {
        if (o instanceof CtlEntry)
        {
            return (CtlEntry)o;
        }

        if (o != null)
        {
            return new CtlEntry(ASN1TaggedObject.getInstance(o));
        }
        return null;
    }

    public static CtlEntry rca(RootCaEntry rca)
    {
        return new CtlEntry(CtlEntry.rca, rca);
    }

    public static CtlEntry ea(EaEntry ea)
    {
        return new CtlEntry(CtlEntry.ea, ea);
    }

    public static CtlEntry aa(AaEntry aa)
    {
        return new CtlEntry(CtlEntry.aa, aa);
    }

    public static CtlEntry dc(DcEntry dc)
    {
        return new CtlEntry(CtlEntry.dc, dc);
    }

    public static CtlEntry tlm(TlmEntry tlm)
    {
        return new CtlEntry(CtlEntry.tlm, tlm);
    }

    public int getChoice()
    {
        return choice;
    }

    public ASN1Encodable getCtlEntry()
    {
        return ctlEntry;
    }

    public ASN1Primitive toASN1Primitive()
    {
        return new DERTaggedObject(choice, ctlEntry);
    }
}