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package org.spongycastle.asn1.cms;
import org.spongycastle.asn1.ASN1EncodableVector;
import org.spongycastle.asn1.ASN1Object;
import org.spongycastle.asn1.ASN1Primitive;
import org.spongycastle.asn1.ASN1Sequence;
import org.spongycastle.asn1.ASN1TaggedObject;
import org.spongycastle.asn1.DERSequence;
import org.spongycastle.asn1.DERTaggedObject;
/**
* <a href="http://tools.ietf.org/html/rfc5940">RFC 5940</a>:
* Additional Cryptographic Message Syntax (CMS) Revocation Information Choices.
* <p>
* <pre>
* SCVPReqRes ::= SEQUENCE {
* request [0] EXPLICIT ContentInfo OPTIONAL,
* response ContentInfo }
* </pre>
*/
public class SCVPReqRes
extends ASN1Object
{
private final ContentInfo request;
private final ContentInfo response;
/**
* Return a SCVPReqRes object from the given object.
* <p>
* Accepted inputs:
* <ul>
* <li> null → null
* <li> {@link SCVPReqRes} object
* <li> {@link org.spongycastle.asn1.ASN1Sequence#getInstance(java.lang.Object) ASN1Sequence} input formats with SCVPReqRes structure inside
* </ul>
*
* @param obj the object we want converted.
* @exception IllegalArgumentException if the object cannot be converted.
*/
public static SCVPReqRes getInstance(
Object obj)
{
if (obj instanceof SCVPReqRes)
{
return (SCVPReqRes)obj;
}
else if (obj != null)
{
return new SCVPReqRes(ASN1Sequence.getInstance(obj));
}
return null;
}
private SCVPReqRes(
ASN1Sequence seq)
{
if (seq.getObjectAt(0) instanceof ASN1TaggedObject)
{
this.request = ContentInfo.getInstance(ASN1TaggedObject.getInstance(seq.getObjectAt(0)), true);
this.response = ContentInfo.getInstance(seq.getObjectAt(1));
}
else
{
this.request = null;
this.response = ContentInfo.getInstance(seq.getObjectAt(0));
}
}
public SCVPReqRes(ContentInfo response)
{
this.request = null; // use of this confuses earlier JDKs
this.response = response;
}
public SCVPReqRes(ContentInfo request, ContentInfo response)
{
this.request = request;
this.response = response;
}
public ContentInfo getRequest()
{
return request;
}
public ContentInfo getResponse()
{
return response;
}
/**
* @return the ASN.1 primitive representation.
*/
public ASN1Primitive toASN1Primitive()
{
ASN1EncodableVector v = new ASN1EncodableVector();
if (request != null)
{
v.add(new DERTaggedObject(true, 0, request));
}
v.add(response);
return new DERSequence(v);
}
}
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