/*
    * 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.chemistry.opencmis.client.runtime.objecttype;
  
  import java.io.Serializable;
  import java.util.ArrayList;
  import java.util.List;
  
  import org.apache.chemistry.opencmis.client.api.ItemIterable;
  import org.apache.chemistry.opencmis.client.api.ObjectType;
  import org.apache.chemistry.opencmis.client.api.RelationshipType;
  import org.apache.chemistry.opencmis.client.api.Session;
  import org.apache.chemistry.opencmis.client.api.Tree;
  import org.apache.chemistry.opencmis.commons.definitions.RelationshipTypeDefinition;
  import org.apache.chemistry.opencmis.commons.impl.dataobjects.RelationshipTypeDefinitionImpl;
  
  /**
   * Relationship type.
   */
  public class RelationshipTypeImpl extends RelationshipTypeDefinitionImpl implements RelationshipType, Serializable {
  
      private static final long serialVersionUID = 1L;
  
      private final ObjectTypeHelper helper;
      private List<ObjectType> allowedSourceTypes;
      private List<ObjectType> allowedTargetTypes;
  
      public RelationshipTypeImpl(Session session, RelationshipTypeDefinition typeDefinition) {
          assert session != null;
          assert typeDefinition != null;
  
          initialize(typeDefinition);
          setAllowedSourceTypes(typeDefinition.getAllowedSourceTypeIds());
          setAllowedTargetTypes(typeDefinition.getAllowedTargetTypeIds());
          helper = new ObjectTypeHelper(session, this);
      }
  
      @Override
      public ObjectType getBaseType() {
          return helper.getBaseType();
      }
  
      @Override
      public ItemIterable<ObjectType> getChildren() {
          return helper.getChildren();
      }
  
      @Override
      public List<Tree<ObjectType>> getDescendants(int depth) {
          return helper.getDescendants(depth);
      }
  
      @Override
      public ObjectType getParentType() {
          return helper.getParentType();
      }
  
      @Override
      public boolean isBaseType() {
          return helper.isBaseType();
      }
  
      @Override
      public List<ObjectType> getAllowedSourceTypes() {
          if (allowedSourceTypes == null) {
              List<String> ids = getAllowedSourceTypeIds();
              List<ObjectType> types = new ArrayList<ObjectType>(ids == null ? 0 : ids.size());
              if (ids != null) {
                  for (String id : ids) {
                      types.add(helper.getSession().getTypeDefinition(id));
                  }
              }
              allowedSourceTypes = types;
          }
          return allowedSourceTypes;
      }
  
      @Override
      public List<ObjectType> getAllowedTargetTypes() {
          if (allowedTargetTypes == null) {
              List<String> ids = getAllowedTargetTypeIds();
              List<ObjectType> types = new ArrayList<ObjectType>(ids == null ? 0 : ids.size());
              if (ids != null) {
                 for (String id : ids) {
                     types.add(helper.getSession().getTypeDefinition(id));
                 }
             }
             allowedTargetTypes = types;
         }
         return allowedTargetTypes;
     }
 
 }