| /* |
| * 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.decorators; |
| |
| |
| import java.nio.BufferOverflowException; |
| import java.nio.ByteBuffer; |
| |
| import org.apache.directory.api.asn1.EncoderException; |
| import org.apache.directory.api.asn1.ber.tlv.BerValue; |
| import org.apache.directory.api.asn1.ber.tlv.TLV; |
| import org.apache.directory.api.asn1.ber.tlv.UniversalTag; |
| import org.apache.directory.api.i18n.I18n; |
| import org.apache.directory.api.ldap.codec.api.LdapApiService; |
| import org.apache.directory.api.ldap.codec.api.LdapCodecConstants; |
| import org.apache.directory.api.ldap.model.entry.BinaryValue; |
| import org.apache.directory.api.ldap.model.entry.Value; |
| import org.apache.directory.api.ldap.model.message.CompareRequest; |
| import org.apache.directory.api.ldap.model.message.Control; |
| import org.apache.directory.api.ldap.model.name.Dn; |
| import org.apache.directory.api.util.Strings; |
| |
| |
| /** |
| * A decorator for the CompareRequest message |
| * |
| * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> |
| */ |
| public class CompareRequestDecorator extends SingleReplyRequestDecorator<CompareRequest> |
| implements CompareRequest |
| { |
| /** The bytes of the attribute id used in the comparison */ |
| private byte[] attrIdBytes; |
| |
| /** The bytes of the attribute value used in the comparison */ |
| private byte[] attrValBytes; |
| |
| /** The compare request length */ |
| private int compareRequestLength; |
| |
| /** The attribute value assertion length */ |
| private int avaLength; |
| |
| |
| /** |
| * Makes a CompareRequest a MessageDecorator. |
| * |
| * @param decoratedMessage the decorated CompareRequest |
| */ |
| public CompareRequestDecorator( LdapApiService codec, CompareRequest decoratedMessage ) |
| { |
| super( codec, decoratedMessage ); |
| } |
| |
| |
| //------------------------------------------------------------------------- |
| // The CompareRequest methods |
| //------------------------------------------------------------------------- |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public Dn getName() |
| { |
| return getDecorated().getName(); |
| } |
| |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public CompareRequest setName( Dn name ) |
| { |
| getDecorated().setName( name ); |
| |
| return this; |
| } |
| |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public Value<?> getAssertionValue() |
| { |
| return getDecorated().getAssertionValue(); |
| } |
| |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public CompareRequest setAssertionValue( String value ) |
| { |
| getDecorated().setAssertionValue( value ); |
| |
| return this; |
| } |
| |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public CompareRequest setAssertionValue( byte[] value ) |
| { |
| getDecorated().setAssertionValue( value ); |
| |
| return this; |
| } |
| |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public String getAttributeId() |
| { |
| return getDecorated().getAttributeId(); |
| } |
| |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public CompareRequest setAttributeId( String attrId ) |
| { |
| getDecorated().setAttributeId( attrId ); |
| |
| return this; |
| } |
| |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public CompareRequest setMessageId( int messageId ) |
| { |
| super.setMessageId( messageId ); |
| |
| return this; |
| } |
| |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public CompareRequest addControl( Control control ) |
| { |
| return ( CompareRequest ) super.addControl( control ); |
| } |
| |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public CompareRequest addAllControls( Control[] controls ) |
| { |
| return ( CompareRequest ) super.addAllControls( controls ); |
| } |
| |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public CompareRequest removeControl( Control control ) |
| { |
| return ( CompareRequest ) super.removeControl( control ); |
| } |
| |
| |
| //------------------------------------------------------------------------- |
| // The Decorator methods |
| //------------------------------------------------------------------------- |
| /** |
| * Compute the CompareRequest length |
| * |
| * CompareRequest : |
| * 0x6E L1 |
| * | |
| * +--> 0x04 L2 entry |
| * +--> 0x30 L3 (ava) |
| * | |
| * +--> 0x04 L4 attributeDesc |
| * +--> 0x04 L5 assertionValue |
| * |
| * L3 = Length(0x04) + Length(L4) + L4 + Length(0x04) + |
| * Length(L5) + L5 |
| * Length(CompareRequest) = Length(0x6E) + Length(L1) + L1 + |
| * Length(0x04) + Length(L2) + L2 + Length(0x30) + Length(L3) + L3 |
| * |
| * @return The CompareRequest PDU's length |
| */ |
| public int computeLength() |
| { |
| // The entry Dn |
| Dn entry = getName(); |
| compareRequestLength = 1 + TLV.getNbBytes( Dn.getNbBytes( entry ) ) + Dn.getNbBytes( entry ); |
| |
| // The attribute value assertion |
| attrIdBytes = Strings.getBytesUtf8( getAttributeId() ); |
| avaLength = 1 + TLV.getNbBytes( attrIdBytes.length ) + attrIdBytes.length; |
| |
| org.apache.directory.api.ldap.model.entry.Value<?> assertionValue = getAssertionValue(); |
| |
| if ( assertionValue instanceof BinaryValue ) |
| { |
| attrValBytes = getAssertionValue().getBytes(); |
| avaLength += 1 + TLV.getNbBytes( attrValBytes.length ) + attrValBytes.length; |
| } |
| else |
| { |
| attrValBytes = Strings.getBytesUtf8( getAssertionValue().getString() ); |
| avaLength += 1 + TLV.getNbBytes( attrValBytes.length ) + attrValBytes.length; |
| } |
| |
| compareRequestLength += 1 + TLV.getNbBytes( avaLength ) + avaLength; |
| |
| return 1 + TLV.getNbBytes( compareRequestLength ) + compareRequestLength; |
| } |
| |
| |
| /** |
| * Encode the CompareRequest message to a PDU. |
| * |
| * CompareRequest : |
| * 0x6E LL |
| * 0x04 LL entry |
| * 0x30 LL attributeValueAssertion |
| * 0x04 LL attributeDesc |
| * 0x04 LL assertionValue |
| * |
| * @param buffer The buffer where to put the PDU |
| */ |
| public ByteBuffer encode( ByteBuffer buffer ) throws EncoderException |
| { |
| try |
| { |
| // The CompareRequest Tag |
| buffer.put( LdapCodecConstants.COMPARE_REQUEST_TAG ); |
| buffer.put( TLV.getBytes( compareRequestLength ) ); |
| |
| // The entry |
| BerValue.encode( buffer, Dn.getBytes( getName() ) ); |
| |
| // The attributeValueAssertion sequence Tag |
| buffer.put( UniversalTag.SEQUENCE.getValue() ); |
| buffer.put( TLV.getBytes( avaLength ) ); |
| } |
| catch ( BufferOverflowException boe ) |
| { |
| throw new EncoderException( I18n.err( I18n.ERR_04005 ), boe ); |
| } |
| |
| // The attributeDesc |
| BerValue.encode( buffer, attrIdBytes ); |
| |
| // The assertionValue |
| BerValue.encode( buffer, attrValBytes ); |
| |
| return buffer; |
| } |
| } |