package org.bouncycastle.asn1.pkcs;
import java.util.Enumeration;
import org.bouncycastle.asn1.ASN1Encodable;
import org.bouncycastle.asn1.ASN1EncodableVector;
import org.bouncycastle.asn1.ASN1Object;
import org.bouncycastle.asn1.ASN1ObjectIdentifier;
import org.bouncycastle.asn1.ASN1Primitive;
import org.bouncycastle.asn1.ASN1Sequence;
import org.bouncycastle.asn1.ASN1TaggedObject;
import org.bouncycastle.asn1.BERSequence;
import org.bouncycastle.asn1.BERTaggedObject;
import org.bouncycastle.asn1.DLSequence;
public class ContentInfo
extends ASN1Object
implements PKCSObjectIdentifiers
{
private ASN1ObjectIdentifier contentType;
private ASN1Encodable content;
private boolean isBer = true;
public static ContentInfo getInstance(
Object obj)
{
if (obj instanceof ContentInfo)
{
return (ContentInfo)obj;
}
if (obj != null)
{
return new ContentInfo(ASN1Sequence.getInstance(obj));
}
return null;
}
private ContentInfo(
ASN1Sequence seq)
{
Enumeration e = seq.getObjects();
contentType = (ASN1ObjectIdentifier)e.nextElement();
if (e.hasMoreElements())
{
content = ((ASN1TaggedObject)e.nextElement()).getObject();
}
isBer = seq instanceof BERSequence;
}
public ContentInfo(
ASN1ObjectIdentifier contentType,
ASN1Encodable content)
{
this.contentType = contentType;
this.content = content;
}
public ASN1ObjectIdentifier getContentType()
{
return contentType;
}
public ASN1Encodable getContent()
{
return content;
}
/**
* Produce an object suitable for an ASN1OutputStream.
* <pre>
* ContentInfo ::= SEQUENCE {
* contentType ContentType,
* content
* [0] EXPLICIT ANY DEFINED BY contentType OPTIONAL }
* </pre>
*/
public ASN1Primitive toASN1Primitive()
{
ASN1EncodableVector v = new ASN1EncodableVector();
v.add(contentType);
if (content != null)
{
v.add(new BERTaggedObject(true, 0, content));
}
if (isBer)
{
return new BERSequence(v);
}
else
{
return new DLSequence(v);
}
}
}