| /* |
| * 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.subtree; |
| |
| |
| import org.apache.directory.api.ldap.model.constants.SchemaConstants; |
| import org.apache.directory.api.ldap.model.entry.Attribute; |
| import org.apache.directory.api.ldap.model.exception.LdapException; |
| import org.apache.directory.api.ldap.model.filter.AndNode; |
| import org.apache.directory.api.ldap.model.filter.BranchNode; |
| import org.apache.directory.api.ldap.model.filter.ExprNode; |
| import org.apache.directory.api.ldap.model.filter.NotNode; |
| import org.apache.directory.api.ldap.model.filter.OrNode; |
| import org.apache.directory.api.ldap.model.filter.SimpleNode; |
| import org.apache.directory.server.i18n.I18n; |
| |
| |
| /** |
| * The top level evaluation node for a refinement. |
| * |
| * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> |
| */ |
| public class RefinementEvaluator |
| { |
| /** Leaf Evaluator flyweight use for leaf filter assertions */ |
| private RefinementLeafEvaluator leafEvaluator; |
| |
| |
| // ------------------------------------------------------------------------ |
| // C O N S T R U C T O R S |
| // ------------------------------------------------------------------------ |
| |
| public RefinementEvaluator( RefinementLeafEvaluator leafEvaluator ) |
| { |
| this.leafEvaluator = leafEvaluator; |
| } |
| |
| |
| public boolean evaluate( ExprNode node, Attribute objectClasses ) throws LdapException |
| { |
| if ( node == null ) |
| { |
| throw new IllegalArgumentException( I18n.err( I18n.ERR_295 ) ); |
| } |
| |
| if ( objectClasses == null ) |
| { |
| throw new IllegalArgumentException( I18n.err( I18n.ERR_296 ) ); |
| } |
| |
| if ( !( SchemaConstants.OBJECT_CLASS_AT_OID.equals( objectClasses.getAttributeType().getOid() ) ) ) |
| { |
| throw new IllegalArgumentException( I18n.err( I18n.ERR_297 ) ); |
| } |
| |
| if ( node.isLeaf() ) |
| { |
| return leafEvaluator.evaluate( ( SimpleNode ) node, objectClasses ); |
| } |
| |
| BranchNode bnode = ( BranchNode ) node; |
| |
| if ( node instanceof OrNode ) |
| { |
| for ( ExprNode child : bnode.getChildren() ) |
| { |
| if ( evaluate( child, objectClasses ) ) |
| { |
| return true; |
| } |
| } |
| |
| return false; |
| } |
| else if ( node instanceof AndNode ) |
| { |
| for ( ExprNode child : bnode.getChildren() ) |
| { |
| if ( !evaluate( child, objectClasses ) ) |
| { |
| return false; |
| } |
| } |
| |
| return true; |
| |
| } |
| else if ( node instanceof NotNode ) |
| { |
| if ( null != bnode.getFirstChild() ) |
| { |
| return !evaluate( bnode.getFirstChild(), objectClasses ); |
| } |
| |
| throw new IllegalArgumentException( I18n.err( I18n.ERR_243, node ) ); |
| |
| } |
| else |
| { |
| throw new IllegalArgumentException( I18n.err( I18n.ERR_244, bnode ) ); |
| } |
| } |
| } |