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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.asn1.cmc;

import org.bouncycastle.asn1.ASN1Encodable;
import org.bouncycastle.asn1.ASN1Object;
import org.bouncycastle.asn1.ASN1ObjectIdentifier;
import org.bouncycastle.asn1.ASN1Primitive;
import org.bouncycastle.asn1.ASN1Sequence;
import org.bouncycastle.asn1.DERSequence;

/**
 * ExtendedFailInfo ::= SEQUENCE {
 * failInfoOID            OBJECT IDENTIFIER,
 * failInfoValue          ANY DEFINED BY failInfoOID
 * }
 */
public class ExtendedFailInfo
    extends ASN1Object
{

    private final ASN1ObjectIdentifier failInfoOID;
    private final ASN1Encodable failInfoValue;

    public ExtendedFailInfo(ASN1ObjectIdentifier failInfoOID, ASN1Encodable failInfoValue)
    {
        this.failInfoOID = failInfoOID;
        this.failInfoValue = failInfoValue;
    }

    private ExtendedFailInfo(ASN1Sequence s)
    {
        if (s.size() != 2)
        {
            throw new IllegalArgumentException("Sequence must be 2 elements.");
        }

        failInfoOID = ASN1ObjectIdentifier.getInstance(s.getObjectAt(0));
        failInfoValue = s.getObjectAt(1);
    }

    public static ExtendedFailInfo getInstance(Object obj)
    {
        if (obj instanceof ExtendedFailInfo)
        {
            return (ExtendedFailInfo)obj;
        }

        if (obj instanceof ASN1Encodable)
        {
            ASN1Encodable asn1Value = ((ASN1Encodable)obj).toASN1Primitive();
            if (asn1Value instanceof ASN1Sequence)
            {
                return new ExtendedFailInfo(
                    (ASN1Sequence)asn1Value
                );
            }
        }
        else if (obj instanceof byte[])
        {
            return getInstance(ASN1Sequence.getInstance(obj));
        }

        return null;
    }

    public ASN1Primitive toASN1Primitive()
    {
        return new DERSequence(new ASN1Encodable[]{failInfoOID, failInfoValue});
    }

    public ASN1ObjectIdentifier getFailInfoOID()
    {
        return failInfoOID;
    }

    public ASN1Encodable getFailInfoValue()
    {
        return failInfoValue;
    }
}