| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| */ |
| package org.apache.directory.api.ldap.codec.controls.proxiedauthz; |
| |
| |
| import java.nio.ByteBuffer; |
| |
| import org.apache.directory.api.asn1.Asn1Object; |
| import org.apache.directory.api.asn1.DecoderException; |
| import org.apache.directory.api.asn1.EncoderException; |
| import org.apache.directory.api.asn1.ber.tlv.BerValue; |
| import org.apache.directory.api.i18n.I18n; |
| import org.apache.directory.api.ldap.codec.api.ControlDecorator; |
| import org.apache.directory.api.ldap.codec.api.LdapApiService; |
| import org.apache.directory.api.ldap.model.message.controls.ProxiedAuthz; |
| import org.apache.directory.api.ldap.model.message.controls.ProxiedAuthzImpl; |
| import org.apache.directory.api.util.Strings; |
| |
| |
| /** |
| * An ProxiedAuthz implementation, that wraps and decorates the Control with codec |
| * specific functionality. |
| * |
| * |
| * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> |
| */ |
| public class ProxiedAuthzDecorator extends ControlDecorator<ProxiedAuthz> implements ProxiedAuthz |
| { |
| /** A temporary storage for the authzId */ |
| private byte[] authzIdBytes = null; |
| |
| |
| /** |
| * Creates a new instance of ProxiedAuthzDecoder wrapping a newly created |
| * ProxiedAuthz Control object. |
| */ |
| public ProxiedAuthzDecorator( LdapApiService codec ) |
| { |
| super( codec, new ProxiedAuthzImpl() ); |
| } |
| |
| |
| /** |
| * Creates a new instance of ProxiedAuthzDecorator wrapping the supplied |
| * ProxiedAuthz Control. |
| * |
| * @param control The ProxiedAuthz Control to be decorated. |
| */ |
| public ProxiedAuthzDecorator( LdapApiService codec, ProxiedAuthz control ) |
| { |
| super( codec, control ); |
| } |
| |
| |
| /** |
| * Internally used to not have to cast the decorated Control. |
| * |
| * @return the decorated Control. |
| */ |
| private ProxiedAuthz getProxiedAuthz() |
| { |
| return ( ProxiedAuthz ) getDecorated(); |
| } |
| |
| |
| /** |
| * Compute the ProxiedAuthzControl length |
| * |
| * 0x04 L1 authzId] |
| */ |
| public int computeLength() |
| { |
| int valueLength = 0; |
| |
| if ( getAuthzId() != null ) |
| { |
| authzIdBytes = Strings.getBytesUtf8( getAuthzId() ); |
| valueLength = authzIdBytes.length; |
| } |
| |
| return valueLength; |
| } |
| |
| |
| /** |
| * Encodes the ProxiedAuthz control. |
| * |
| * @param buffer The encoded sink |
| * @return A ByteBuffer that contains the encoded PDU |
| * @throws EncoderException If anything goes wrong. |
| */ |
| public ByteBuffer encode( ByteBuffer buffer ) throws EncoderException |
| { |
| if ( buffer == null ) |
| { |
| throw new EncoderException( I18n.err( I18n.ERR_04023 ) ); |
| } |
| |
| if ( getAuthzId() != null ) |
| { |
| buffer.put( authzIdBytes ); |
| } |
| |
| return buffer; |
| } |
| |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public byte[] getValue() |
| { |
| if ( value == null ) |
| { |
| try |
| { |
| computeLength(); |
| ByteBuffer buffer = ByteBuffer.allocate( valueLength ); |
| |
| if ( authzIdBytes != null ) |
| { |
| BerValue.encode( buffer, authzIdBytes ); |
| } |
| else |
| { |
| BerValue.encode( buffer, Strings.EMPTY_BYTES ); |
| } |
| |
| value = buffer.array(); |
| } |
| catch ( Exception e ) |
| { |
| return null; |
| } |
| } |
| |
| return value; |
| } |
| |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public String getAuthzId() |
| { |
| return getProxiedAuthz().getAuthzId(); |
| } |
| |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public void setAuthzId( String authzId ) |
| { |
| getProxiedAuthz().setAuthzId( authzId ); |
| } |
| |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public Asn1Object decode( byte[] controlBytes ) throws DecoderException |
| { |
| getProxiedAuthz().setAuthzId( Strings.utf8ToString( controlBytes ) ); |
| |
| return this; |
| } |
| } |