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20 package org.apache.directory.server.changepw.io;
21
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23 import java.io.ByteArrayOutputStream;
24 import java.io.IOException;
25 import java.nio.ByteBuffer;
26
27 import org.apache.directory.server.changepw.value.ChangePasswordData;
28 import org.apache.directory.server.kerberos.shared.io.encoder.PrincipalNameEncoder;
29 import org.apache.directory.shared.asn1.der.ASN1OutputStream;
30 import org.apache.directory.shared.asn1.der.DERGeneralString;
31 import org.apache.directory.shared.asn1.der.DEROctetString;
32 import org.apache.directory.shared.asn1.der.DERSequence;
33 import org.apache.directory.shared.asn1.der.DERTaggedObject;
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40 public class ChangePasswordDataEncoder
41 {
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49 public byte[] encode( ChangePasswordData data ) throws IOException
50 {
51 ByteArrayOutputStream baos = new ByteArrayOutputStream();
52 ASN1OutputStream aos = new ASN1OutputStream( baos );
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54 DERSequence dataSequence = encodeDataSequence( data );
55 aos.writeObject( dataSequence );
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57 aos.close();
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59 return baos.toByteArray();
60 }
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70 public void encode( ChangePasswordData data, ByteBuffer out ) throws IOException
71 {
72 ASN1OutputStream aos = new ASN1OutputStream( out );
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74 DERSequence sequence = encodeDataSequence( data );
75 aos.writeObject( sequence );
76
77 aos.close();
78 }
79
80
81 private DERSequence encodeDataSequence( ChangePasswordData data )
82 {
83 DERSequence sequence = new DERSequence();
84 sequence.add( new DERTaggedObject( 0, new DEROctetString( data.getPassword() ) ) );
85
86
87 if ( data.getPrincipalName() != null )
88 {
89 sequence.add( new DERTaggedObject( 1, PrincipalNameEncoder.encode( data.getPrincipalName() ) ) );
90 }
91
92
93 if ( data.getRealm() != null )
94 {
95 sequence.add( new DERTaggedObject( 2, DERGeneralString.valueOf( data.getRealm() ) ) );
96 }
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98 return sequence;
99 }
100 }