1 package org.bouncycastle.cms; 2 3 import java.io.IOException; 4 import java.io.InputStream; 5 import java.io.OutputStream; 6 7 import org.bouncycastle.asn1.ASN1ObjectIdentifier; 8 import org.bouncycastle.asn1.cms.CMSObjectIdentifiers; 9 10 /** 11 * a class representing null or absent content. 12 */ 13 public class CMSAbsentContent 14 implements CMSTypedData, CMSReadable 15 { 16 private final ASN1ObjectIdentifier type; 17 18 public CMSAbsentContent() 19 { 20 this(CMSObjectIdentifiers.data); 21 } 22 23 public CMSAbsentContent( 24 ASN1ObjectIdentifier type) 25 { 26 this.type = type; 27 } 28 29 public InputStream getInputStream() 30 { 31 return null; 32 } 33 34 public void write(OutputStream zOut) 35 throws IOException, CMSException 36 { 37 // do nothing 38 } 39 40 public Object getContent() 41 { 42 return null; 43 } 44 45 public ASN1ObjectIdentifier getContentType() 46 { 47 return type; 48 } 49 } 50
