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The Bouncy Castle Crypto package is a Java implementation of cryptographic algorithms. This jar contains JCE provider and lightweight API for the Bouncy Castle Cryptography APIs for JDK 1.5 and up.

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package org.bouncycastle.asn1.crmf;

import java.math.BigInteger;

import org.bouncycastle.asn1.ASN1EncodableVector;
import org.bouncycastle.asn1.ASN1Integer;
import org.bouncycastle.asn1.ASN1Object;
import org.bouncycastle.asn1.ASN1Primitive;
import org.bouncycastle.asn1.ASN1Sequence;
import org.bouncycastle.asn1.DERSequence;

/**
 *  * PKIPublicationInfo ::= SEQUENCE {
 *                  action     INTEGER {
 *                                 dontPublish (0),
 *                                 pleasePublish (1) },
 *                  pubInfos  SEQUENCE SIZE (1..MAX) OF SinglePubInfo OPTIONAL }
 * -- pubInfos MUST NOT be present if action is "dontPublish"
 * -- (if action is "pleasePublish" and pubInfos is omitted,
 * -- "dontCare" is assumed)
 * 
 */
public class PKIPublicationInfo
    extends ASN1Object
{
    public static final ASN1Integer dontPublish = new ASN1Integer(0);
    public static final ASN1Integer pleasePublish = new ASN1Integer(1);

    private ASN1Integer action;
    private ASN1Sequence pubInfos;

    private PKIPublicationInfo(ASN1Sequence seq)
    {
        action = ASN1Integer.getInstance(seq.getObjectAt(0));
        if (seq.size() > 1)
        {
            pubInfos = ASN1Sequence.getInstance(seq.getObjectAt(1));
        }
    }

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

        if (o != null)
        {
            return new PKIPublicationInfo(ASN1Sequence.getInstance(o));
        }

        return null;
    }

    public PKIPublicationInfo(BigInteger action)
    {
        this(new ASN1Integer(action));
    }

    public PKIPublicationInfo(ASN1Integer action)
    {
        this.action = action;
    }

    /**
     * Constructor with a single pubInfo, assumes pleasePublish as the action.
     *
     * @param pubInfo the pubInfo to be published (can be null if don't care is required).
     */
    public PKIPublicationInfo(SinglePubInfo pubInfo)
    {
        this(pubInfo != null ? new SinglePubInfo[] { pubInfo } : (SinglePubInfo[])null);
    }

    /**
     * Constructor with multiple pubInfo, assumes pleasePublish as the action.
     *
     * @param pubInfos the pubInfos to be published (can be null if don't care is required).
     */
    public PKIPublicationInfo(SinglePubInfo[] pubInfos)
    {
        this.action = pleasePublish;

        if (pubInfos != null)
        {
            this.pubInfos = new DERSequence(pubInfos);
        }
        else
        {
            this.pubInfos = null;
        }
    }

    public ASN1Integer getAction()
    {
        return action;
    }

    public SinglePubInfo[] getPubInfos()
    {
        if (pubInfos == null)
        {
            return null;
        }

        SinglePubInfo[] results = new SinglePubInfo[pubInfos.size()];

        for (int i = 0; i != results.length; i++)
        {
            results[i] = SinglePubInfo.getInstance(pubInfos.getObjectAt(i));
        }

        return results;
    }

    /**
     * Return the primitive representation of PKIPublicationInfo.
     *
     * @return a basic ASN.1 object representation.
     */
    public ASN1Primitive toASN1Primitive()
    {
        ASN1EncodableVector v = new ASN1EncodableVector(2);

        v.add(action);

        if (pubInfos != null)
        {
            v.add(pubInfos);
        }

        return new DERSequence(v);
    }
}