| /* |
| * 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.polygene.runtime.association; |
| |
| import java.lang.reflect.AccessibleObject; |
| import java.lang.reflect.Member; |
| import java.util.LinkedHashMap; |
| import java.util.Map; |
| import java.util.stream.Stream; |
| import org.apache.polygene.api.association.Association; |
| import org.apache.polygene.api.association.AssociationDescriptor; |
| import org.apache.polygene.api.association.AssociationStateHolder; |
| import org.apache.polygene.api.common.QualifiedName; |
| import org.apache.polygene.api.util.HierarchicalVisitor; |
| import org.apache.polygene.api.util.VisitableHierarchy; |
| |
| /** |
| * Model for Associations. |
| */ |
| public final class AssociationsModel |
| implements VisitableHierarchy<AssociationsModel, AssociationModel> |
| { |
| private final Map<AccessibleObject, AssociationModel> mapAccessorAssociationModel = new LinkedHashMap<>(); |
| private final Map<QualifiedName, AssociationModel> mapNameAssociationModel = new LinkedHashMap<>(); |
| |
| public AssociationsModel() |
| { |
| } |
| |
| public Stream<AssociationModel> associations() |
| { |
| return mapAccessorAssociationModel.values().stream(); |
| } |
| |
| public void addAssociation( AssociationModel associationModel ) |
| { |
| mapAccessorAssociationModel.put( associationModel.accessor(), associationModel ); |
| mapNameAssociationModel.put( associationModel.qualifiedName(), associationModel ); |
| } |
| |
| @Override |
| public <ThrowableType extends Throwable> boolean accept( HierarchicalVisitor<? super AssociationsModel, ? super AssociationModel, ThrowableType> visitor ) |
| throws ThrowableType |
| { |
| if( visitor.visitEnter( this ) ) |
| { |
| for( AssociationModel associationModel : mapAccessorAssociationModel.values() ) |
| { |
| if( !associationModel.accept( visitor ) ) |
| { |
| break; |
| } |
| } |
| } |
| return visitor.visitLeave( this ); |
| } |
| |
| public AssociationModel getAssociation( AccessibleObject accessor ) |
| throws IllegalArgumentException |
| { |
| AssociationModel associationModel = mapAccessorAssociationModel.get( accessor ); |
| if( associationModel == null ) |
| { |
| throw new IllegalArgumentException( "No association found with name:" + ( (Member) accessor ).getName() ); |
| } |
| return associationModel; |
| } |
| |
| public AssociationDescriptor getAssociationByName( String name ) |
| throws IllegalArgumentException |
| { |
| for( AssociationModel associationModel : mapAccessorAssociationModel.values() ) |
| { |
| if( associationModel.qualifiedName().name().equals( name ) ) |
| { |
| return associationModel; |
| } |
| } |
| throw new IllegalArgumentException( "No association found with name:" + name ); |
| } |
| |
| public AssociationDescriptor getAssociationByQualifiedName( QualifiedName name ) |
| throws IllegalArgumentException |
| { |
| AssociationModel associationModel = mapNameAssociationModel.get( name ); |
| if( associationModel != null ) |
| { |
| return associationModel; |
| } |
| throw new IllegalArgumentException( "No association found with qualified name:" + name ); |
| } |
| |
| public boolean hasAssociation( QualifiedName name ) |
| { |
| return mapNameAssociationModel.containsKey( name ); |
| } |
| |
| public void checkConstraints( AssociationStateHolder state ) |
| { |
| for( AssociationModel associationModel : mapAccessorAssociationModel.values() ) |
| { |
| Association<Object> association = state.associationFor( associationModel.accessor() ); |
| associationModel.checkAssociationConstraints( association ); |
| associationModel.checkConstraints( association.get() ); |
| } |
| } |
| } |