/*
    * Copyright 2006-2007 The Kuali Foundation
    * 
    * Licensed under the Educational Community 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.opensource.org/licenses/ecl2.php
    * 
   * 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.kuali.rice.kns.datadictionary.exporter;
  
  import org.kuali.rice.kns.datadictionary.DataDictionaryEntryBase;
  import org.kuali.rice.kns.datadictionary.PrimitiveAttributeDefinition;
  import org.kuali.rice.kns.datadictionary.RelationshipDefinition;
  
  /**
   * RelationshipsMapBuilder
   * 
   * 
   */
  public class RelationshipsMapBuilder {
  
      /**
       * Default constructor
       */
      public RelationshipsMapBuilder() {
      }
  
  
      /**
       * @param entry
       * @return ExportMap containing the standard entries for the entry's RelationshipDefinitions
       */
      public ExportMap buildRelationshipsMap(DataDictionaryEntryBase entry) {
          ExportMap relationshipsMap = new ExportMap("relationships");
  
          for ( RelationshipDefinition relationship : entry.getRelationships() ) {
              relationshipsMap.set(buildRelationshipMap(relationship));
          }
  
          return relationshipsMap;
      }
  
      private ExportMap buildRelationshipMap(RelationshipDefinition relationship) {
          ExportMap relationshipMap = new ExportMap(relationship.getObjectAttributeName());
  
          ExportMap attributesMap = new ExportMap("primitiveAttributes");
  
          int count = 0;
          for (PrimitiveAttributeDefinition primitiveAttributeDefinition : relationship.getPrimitiveAttributes()) {
              ExportMap attributeMap = new ExportMap(Integer.toString(count++));
              attributeMap.set("sourceName", primitiveAttributeDefinition.getSourceName());
              attributeMap.set("targetName", primitiveAttributeDefinition.getTargetName());
  
              attributesMap.set(attributeMap);
          }
  
          relationshipMap.set(attributesMap);
  
          return relationshipMap;
      }
  
  }