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20 package org.apache.directory.server.kerberos.shared.io.encoder;
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23 import java.io.ByteArrayOutputStream;
24 import java.io.IOException;
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26 import org.apache.directory.server.kerberos.shared.messages.application.ApplicationReply;
27 import org.apache.directory.shared.asn1.der.ASN1OutputStream;
28 import org.apache.directory.shared.asn1.der.DERApplicationSpecific;
29 import org.apache.directory.shared.asn1.der.DERInteger;
30 import org.apache.directory.shared.asn1.der.DERSequence;
31 import org.apache.directory.shared.asn1.der.DERTaggedObject;
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38 public class ApplicationReplyEncoder
39 {
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43 public static final int APPLICATION_CODE = 15;
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53 public byte[] encode( ApplicationReply reply ) throws IOException
54 {
55 ByteArrayOutputStream baos = new ByteArrayOutputStream();
56 ASN1OutputStream aos = new ASN1OutputStream( baos );
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58 DERSequence replySequence = encodeReplySequence( reply );
59 aos.writeObject( DERApplicationSpecific.valueOf( APPLICATION_CODE, replySequence ) );
60 aos.close();
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62 return baos.toByteArray();
63 }
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66 private DERSequence encodeReplySequence( ApplicationReply message )
67 {
68 DERSequence sequence = new DERSequence();
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70 sequence.add( new DERTaggedObject( 0, DERInteger.valueOf( message.getProtocolVersionNumber() ) ) );
71 sequence.add( new DERTaggedObject( 1, DERInteger.valueOf( message.getMessageType().getOrdinal() ) ) );
72 sequence.add( new DERTaggedObject( 2, EncryptedDataEncoder.encodeSequence( message.getEncPart() ) ) );
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74 return sequence;
75 }
76 }