001 /** 002 * 003 * Licensed to the Apache Software Foundation (ASF) under one or more 004 * contributor license agreements. See the NOTICE file distributed with 005 * this work for additional information regarding copyright ownership. 006 * The ASF licenses this file to You under the Apache License, Version 2.0 007 * (the "License"); you may not use this file except in compliance with 008 * the License. You may obtain a copy of the License at 009 * 010 * http://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, software 013 * distributed under the License is distributed on an "AS IS" BASIS, 014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 015 * See the License for the specific language governing permissions and 016 * limitations under the License. 017 */ 018 package org.apache.xbean.recipe; 019 020 import java.util.Map; 021 import java.util.Properties; 022 import java.lang.reflect.Type; 023 024 public class UnsetPropertiesRecipe extends AbstractRecipe { 025 public float getPriority() { 026 return 100; 027 } 028 029 public boolean canCreate(Type type) { 030 return RecipeHelper.isAssignable(type, Properties.class); 031 } 032 033 protected Object internalCreate(Type expectedType, boolean lazyRefAllowed) throws ConstructionException { 034 Recipe outerRecipe = RecipeHelper.getCaller(); 035 if (!(outerRecipe instanceof ObjectRecipe)) { 036 throw new ConstructionException("UnsetPropertiesRecipe can only be nested in an ObjectRecipe: outerRecipe=" + outerRecipe); 037 } 038 ObjectRecipe objectRecipe = (ObjectRecipe) outerRecipe; 039 Map<String,Object> unsetProperties = objectRecipe.getUnsetProperties(); 040 041 // copy to a properties object 042 Properties properties = new Properties(); 043 for (Map.Entry<String, Object> entry : unsetProperties.entrySet()) { 044 properties.put(entry.getKey(), entry.getValue()); 045 } 046 047 // add to execution context if name is specified 048 if (getName() != null) { 049 ExecutionContext.getContext().addObject(getName(), properties); 050 } 051 052 return properties; 053 } 054 }