/*
* 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.server.core.api.event;
import org.apache.directory.server.core.api.event.Evaluator;
import org.apache.directory.server.i18n.I18n;
import org.apache.directory.shared.ldap.model.entry.Entry;
import org.apache.directory.shared.ldap.model.exception.LdapException;
import org.apache.directory.shared.ldap.model.exception.LdapInvalidSearchFilterException;
import org.apache.directory.shared.ldap.model.filter.ExprNode;
import org.apache.directory.shared.ldap.model.filter.ScopeNode;
import org.apache.directory.shared.ldap.model.name.Dn;
/**
* Evaluates ScopeNode assertions on candidates.
*
* @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
*/
public class ScopeEvaluator implements Evaluator
{
public ScopeEvaluator()
{
}
/**
* {@inheritDoc}
*/
public boolean evaluate( ExprNode node, Dn dn, Entry record ) throws LdapException
{
ScopeNode snode = ( ScopeNode ) node;
switch ( snode.getScope() )
{
case OBJECT:
return dn.equals( snode.getBaseDn() );
case ONELEVEL:
if ( dn.isDescendantOf( snode.getBaseDn() ) )
{
return ( snode.getBaseDn().size() + 1 ) == dn.size();
}
case SUBTREE:
return dn.isDescendantOf( snode.getBaseDn() );
default:
throw new LdapInvalidSearchFilterException( I18n.err( I18n.ERR_247 ) );
}
}
}