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
   *
   *      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.aries.blueprint.di;
  
  import java.lang.reflect.Array;
  import java.util.ArrayList;
  import java.util.List;
  
  import org.osgi.service.blueprint.container.ComponentDefinitionException;
  import org.osgi.service.blueprint.container.ReifiedType;
  
  /**
   * @version $Rev$ $Date$
   */
  public class ArrayRecipe extends AbstractRecipe {
  
      private final List<Recipe> list;
      private final Object type;
  
      public ArrayRecipe(String name, Object type) {
          super(name);
          this.type = type;
          this.list = new ArrayList<Recipe>();
      }
  
      public List<Recipe> getDependencies() {
          List<Recipe> nestedRecipes = new ArrayList<Recipe>(list.size());
          for (Recipe recipe : list) {
              if (recipe != null) {
                  nestedRecipes.add(recipe);
              }
          }
          return nestedRecipes;
      }
  
      protected Object internalCreate() throws ComponentDefinitionException {
          ReifiedType type;
          if (this.type instanceof Class) {
              type = new ReifiedType((Class) this.type);
          } else if (this.type instanceof String) {
              type = loadType((String) this.type);
          } else {
              type = new ReifiedType(Object.class);
          }
  
          // create array instance
          Object array;
          try {
              array = Array.newInstance(type.getRawClass(), list.size());
          } catch (Exception e) {
              throw new ComponentDefinitionException("Error while creating array instance: " + type);
          }
  
          int index = 0;
          for (Recipe recipe : list) {
              Object value;
              if (recipe != null) {
                  try {
                      value = convert(recipe.create(), type);
                  } catch (Exception e) {
                      throw new ComponentDefinitionException("Unable to convert value " + recipe + " to type " + type, e);
                  }
              } else {
                  value = null;
              }
              
              Array.set(array, index, value);
              index++;
          }
          
          return array;
      }
  
      public void add(Recipe value) {
          list.add(value);
      }
  
  }
  