content: /*****************************************************************
   *   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
   *
   *    https://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.cayenne.modeler.graph;
  
  import java.util.HashMap;
  
  import org.apache.cayenne.CayenneRuntimeException;
  import org.apache.cayenne.configuration.DataChannelDescriptor;
  import org.apache.cayenne.modeler.Application;
  import org.apache.cayenne.modeler.ProjectController;
  
  /**
   * Map that stores graph builders <b>for a single domain</b> by their type 
   * and has additional methods to set currently selected graph and serialize to XML
   */
  public class GraphMap extends HashMap<GraphType, GraphBuilder> {
      /**
       * type that is currently selected
       */
      GraphType selectedType;
      
      /**
       * Domain
       */
      DataChannelDescriptor domain;
      
      public GraphMap(DataChannelDescriptor domain) {
          this.domain = domain;
      }
       
      /**
       * Returns domain
       */
      public DataChannelDescriptor getDomain() {
          return domain;
      }
      
      /**
       * Returns type that is currently selected
       */
      public GraphType getSelectedType() {
          return selectedType;
      }
      
      /**
       * Sets type that is currently selected
       */
      public void setSelectedType(GraphType selectedType) {
          this.selectedType = selectedType;
      }
      
      public GraphBuilder createGraphBuilder(GraphType type, boolean doLayout) {
          try {
              GraphBuilder builder = type.getBuilderClass().getDeclaredConstructor().newInstance();
              builder.buildGraph(getProjectController(), domain, doLayout);
              put(type, builder);
              
              return builder;
          } catch (Exception e) {
              throw new CayenneRuntimeException("Could not instantiate GraphBuilder", e);
          }
      }
  
      private ProjectController getProjectController() {
          return Application.getInstance().getFrameController().getProjectController();
      }
  }
  