/*
* 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.actions.searchRequest.filter;
import org.apache.directory.api.asn1.DecoderException;
import org.apache.directory.api.asn1.ber.grammar.GrammarAction;
import org.apache.directory.api.asn1.ber.tlv.TLV;
import org.apache.directory.api.ldap.codec.AttributeValueAssertion;
import org.apache.directory.api.ldap.codec.api.LdapMessageContainer;
import org.apache.directory.api.ldap.codec.decorators.SearchRequestDecorator;
import org.apache.directory.api.ldap.codec.search.AttributeValueAssertionFilter;
import org.apache.directory.api.ldap.model.entry.BinaryValue;
import org.apache.directory.api.ldap.model.entry.StringValue;
import org.apache.directory.api.ldap.model.entry.Value;
import org.apache.directory.api.util.StringConstants;
import org.apache.directory.api.util.Strings;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* The action used to initialize the Assertion Value filter
*
* @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
*/
public class InitAssertionValueFilter extends GrammarAction<LdapMessageContainer<SearchRequestDecorator>>
{
/** The logger */
private static final Logger LOG = LoggerFactory.getLogger( InitAssertionValueFilter.class );
/** Speedup for logs */
private static final boolean IS_DEBUG = LOG.isDebugEnabled();
/**
* Instantiates a new init assertion value filter action.
*/
public InitAssertionValueFilter()
{
super( "Initialize Assertion Value filter" );
}
/**
* {@inheritDoc}
*/
public void action( LdapMessageContainer<SearchRequestDecorator> container ) throws DecoderException
{
SearchRequestDecorator searchRequestDecorator = container.getMessage();
TLV tlv = container.getCurrentTLV();
// The value can be null.
Value<?> assertionValue = null;
if ( tlv.getLength() != 0 )
{
assertionValue = new BinaryValue( tlv.getValue().getData() );
}
else
{
assertionValue = new BinaryValue( StringConstants.EMPTY_BYTES );
}
AttributeValueAssertionFilter terminalFilter = ( AttributeValueAssertionFilter )
searchRequestDecorator.getTerminalFilter();
AttributeValueAssertion assertion = terminalFilter.getAssertion();
if ( container.isBinary( assertion.getAttributeDesc() ) )
{
if ( tlv.getLength() != 0 )
{
assertionValue = new BinaryValue( tlv.getValue().getData() );
}
else
{
assertionValue = new BinaryValue( StringConstants.EMPTY_BYTES );
}
assertion.setAssertionValue( assertionValue );
}
else
{
if ( tlv.getLength() != 0 )
{
assertionValue = new StringValue( Strings.utf8ToString( tlv.getValue().getData() ) );
}
else
{
assertionValue = new StringValue( "" );
}
assertion.setAssertionValue( assertionValue );
}
// We now have to get back to the nearest filter which is
// not terminal.
searchRequestDecorator.unstackFilters( container );
if ( IS_DEBUG )
{
LOG.debug( "Initialize Assertion Value filter" );
}
}
}