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package org.spongycastle.cms;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import org.spongycastle.asn1.ASN1ObjectIdentifier;
import org.spongycastle.asn1.cms.CMSObjectIdentifiers;
/**
* a class representing null or absent content.
*/
public class CMSAbsentContent
implements CMSTypedData, CMSReadable
{
private final ASN1ObjectIdentifier type;
public CMSAbsentContent()
{
this(new ASN1ObjectIdentifier(CMSObjectIdentifiers.data.getId()));
}
public CMSAbsentContent(
ASN1ObjectIdentifier type)
{
this.type = type;
}
public InputStream getInputStream()
{
return null;
}
public void write(OutputStream zOut)
throws IOException, CMSException
{
// do nothing
}
public Object getContent()
{
return null;
}
public ASN1ObjectIdentifier getContentType()
{
return type;
}
}
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