001/*
002 *  Licensed to the Apache Software Foundation (ASF) under one
003 *  or more contributor license agreements.  See the NOTICE file
004 *  distributed with this work for additional information
005 *  regarding copyright ownership.  The ASF licenses this file
006 *  to you under the Apache License, Version 2.0 (the
007 *  "License"); you may not use this file except in compliance
008 *  with the License.  You may obtain a copy of the License at
009 *  
010 *    http://www.apache.org/licenses/LICENSE-2.0
011 *  
012 *  Unless required by applicable law or agreed to in writing,
013 *  software distributed under the License is distributed on an
014 *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015 *  KIND, either express or implied.  See the License for the
016 *  specific language governing permissions and limitations
017 *  under the License. 
018 *  
019 */
020package org.apache.directory.api.ldap.codec.actions.searchRequest.filter;
021
022
023import org.apache.directory.api.asn1.DecoderException;
024import org.apache.directory.api.asn1.ber.grammar.GrammarAction;
025import org.apache.directory.api.ldap.codec.api.LdapCodecConstants;
026import org.apache.directory.api.ldap.codec.api.LdapMessageContainer;
027import org.apache.directory.api.ldap.codec.decorators.SearchRequestDecorator;
028import org.apache.directory.api.ldap.codec.search.AttributeValueAssertionFilter;
029import org.apache.directory.api.ldap.codec.search.Filter;
030import org.slf4j.Logger;
031import org.slf4j.LoggerFactory;
032
033
034/**
035 * The action used to initialize the Less Or Equal filter
036 * 
037 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
038 */
039public class InitLessOrEqualFilter extends GrammarAction<LdapMessageContainer<SearchRequestDecorator>>
040{
041    /** The logger */
042    private static final Logger LOG = LoggerFactory.getLogger( InitLessOrEqualFilter.class );
043
044    /** Speedup for logs */
045    private static final boolean IS_DEBUG = LOG.isDebugEnabled();
046
047
048    /**
049     * Instantiates a new init less or equal filter action.
050     */
051    public InitLessOrEqualFilter()
052    {
053        super( "Initialize Less Or Equal filter" );
054    }
055
056
057    /**
058     * {@inheritDoc}
059     */
060    public void action( LdapMessageContainer<SearchRequestDecorator> container ) throws DecoderException
061    {
062        SearchRequestDecorator searchRequestDecorator = container.getMessage();
063
064        // We can allocate the Attribute Value Assertion
065        Filter filter = new AttributeValueAssertionFilter( container.getTlvId(),
066            LdapCodecConstants.LESS_OR_EQUAL_FILTER );
067
068        searchRequestDecorator.addCurrentFilter( filter );
069
070        // Store the filter structure that still has to be
071        // fulfilled
072        searchRequestDecorator.setTerminalFilter( filter );
073
074        if ( IS_DEBUG )
075        {
076            LOG.debug( "Initialize Less Or Equal filter" );
077        }
078    }
079}