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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.PrivateMessage;
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 PrivateMessageEncoder
39 {
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47 public byte[] encode( PrivateMessage message ) throws IOException
48 {
49 ByteArrayOutputStream baos = new ByteArrayOutputStream();
50 ASN1OutputStream aos = new ASN1OutputStream( baos );
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52 DERSequence privateMessageSequence = encodePrivateMessageSequence( message );
53 aos
54 .writeObject( DERApplicationSpecific
55 .valueOf( message.getMessageType().getOrdinal(), privateMessageSequence ) );
56 aos.close();
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58 return baos.toByteArray();
59 }
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62 private DERSequence encodePrivateMessageSequence( PrivateMessage message )
63 {
64 DERSequence sequence = new DERSequence();
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66 sequence.add( new DERTaggedObject( 0, DERInteger.valueOf( message.getProtocolVersionNumber() ) ) );
67 sequence.add( new DERTaggedObject( 1, DERInteger.valueOf( message.getMessageType().getOrdinal() ) ) );
68 sequence.add( new DERTaggedObject( 3, EncryptedDataEncoder.encodeSequence( message.getEncryptedPart() ) ) );
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70 return sequence;
71 }
72 }