| /* |
| * 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 |
| * |
| * https://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.search; |
| |
| |
| import java.nio.BufferOverflowException; |
| import java.nio.ByteBuffer; |
| |
| import org.apache.directory.api.asn1.DecoderException; |
| import org.apache.directory.api.asn1.EncoderException; |
| import org.apache.directory.api.asn1.ber.tlv.TLV; |
| import org.apache.directory.api.i18n.I18n; |
| import org.apache.directory.api.ldap.codec.api.LdapCodecConstants; |
| |
| |
| /** |
| * Not Filter Object to store the Not filter. |
| * |
| * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> |
| */ |
| public class NotFilter extends ConnectorFilter |
| { |
| /** |
| * The constructor. |
| * |
| * @param tlvId The TLV identifier |
| */ |
| public NotFilter( int tlvId ) |
| { |
| super( tlvId ); |
| } |
| |
| |
| /** |
| * The constructor. |
| */ |
| public NotFilter() |
| { |
| super(); |
| } |
| |
| |
| /** |
| * Subclass the addFilterMethod, as this is specific for a NotFilter (we |
| * cannot have more than one elements). |
| * |
| * @param filter The Filter to add |
| */ |
| @Override |
| public void addFilter( Filter filter ) throws DecoderException |
| { |
| if ( filterSet != null ) |
| { |
| throw new DecoderException( I18n.err( I18n.ERR_05501_MORE_THAN_ONE_FILTER_FOR_NOT_FILTER ) ); |
| } |
| |
| super.addFilter( filter ); |
| } |
| |
| |
| /** |
| * Get the NotFilter |
| * |
| * @return Returns the notFilter. |
| */ |
| public Filter getNotFilter() |
| { |
| return filterSet.get( 0 ); |
| } |
| |
| |
| /** |
| * Set the NotFilter |
| * |
| * @param notFilter The notFilter to set. |
| * @throws DecoderException If the NotFilter is already containing a filter |
| */ |
| public void setNotFilter( Filter notFilter ) throws DecoderException |
| { |
| if ( filterSet != null ) |
| { |
| throw new DecoderException( I18n.err( I18n.ERR_05501_MORE_THAN_ONE_FILTER_FOR_NOT_FILTER ) ); |
| } |
| |
| super.addFilter( notFilter ); |
| } |
| |
| |
| /** |
| * Compute the NotFilter length |
| * <br> |
| * NotFilter : |
| * <pre> |
| * 0xA2 L1 super.computeLength() |
| * |
| * Length(NotFilter) = Length(0xA2) + Length(super.computeLength()) + |
| * super.computeLength() |
| * </pre> |
| * |
| * @return The encoded length |
| */ |
| @Override |
| public int computeLength() |
| { |
| filtersLength = super.computeLength(); |
| |
| return 1 + TLV.getNbBytes( filtersLength ) + filtersLength; |
| } |
| |
| |
| /** |
| * Encode the NotFilter message to a PDU. |
| * <br> |
| * NotFilter : |
| * <pre> |
| * 0xA2 LL filter.encode() |
| * </pre> |
| * |
| * @param buffer The buffer where to put the PDU |
| * @return The PDU. |
| */ |
| @Override |
| public ByteBuffer encode( ByteBuffer buffer ) throws EncoderException |
| { |
| if ( buffer == null ) |
| { |
| throw new EncoderException( I18n.err( I18n.ERR_08000_CANNOT_PUT_A_PDU_IN_NULL_BUFFER ) ); |
| } |
| |
| try |
| { |
| // The NotFilter Tag |
| buffer.put( ( byte ) LdapCodecConstants.NOT_FILTER_TAG ); |
| buffer.put( TLV.getBytes( filtersLength ) ); |
| } |
| catch ( BufferOverflowException boe ) |
| { |
| throw new EncoderException( I18n.err( I18n.ERR_08212_PDU_BUFFER_TOO_SMALL ), boe ); |
| } |
| |
| super.encode( buffer ); |
| |
| return buffer; |
| } |
| |
| |
| /** |
| * Return a string compliant with RFC 2254 representing a NOT filter |
| * |
| * @return The NOT filter string |
| */ |
| @Override |
| public String toString() |
| { |
| StringBuilder sb = new StringBuilder(); |
| |
| sb.append( '!' ).append( super.toString() ); |
| |
| return sb.toString(); |
| } |
| } |