178c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson/** 278c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson * Copyright 2006-2013 the original author or authors. 378c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson * 478c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson * Licensed under the Apache License, Version 2.0 (the "License"); 578c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson * you may not use this file except in compliance with the License. 678c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson * You may obtain a copy of the License at 778c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson * 878c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson * http://www.apache.org/licenses/LICENSE-2.0 978c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson * 1078c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson * Unless required by applicable law or agreed to in writing, software 1178c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson * distributed under the License is distributed on an "AS IS" BASIS, 1278c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1378c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson * See the License for the specific language governing permissions and 1478c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson * limitations under the License. 1578c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson */ 1678c496fe0fac4c89993109340aec80d1afa3141fIan Parkinsonpackage org.objenesis; 1778c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson 1878c496fe0fac4c89993109340aec80d1afa3141fIan Parkinsonimport java.util.HashMap; 1978c496fe0fac4c89993109340aec80d1afa3141fIan Parkinsonimport java.util.Map; 2078c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson 2178c496fe0fac4c89993109340aec80d1afa3141fIan Parkinsonimport org.objenesis.instantiator.ObjectInstantiator; 2278c496fe0fac4c89993109340aec80d1afa3141fIan Parkinsonimport org.objenesis.strategy.InstantiatorStrategy; 2378c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson 2478c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson/** 2578c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson * Base class to extend if you want to have a class providing your own default strategy. Can also be 2678c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson * instantiated directly. 2778c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson * 2878c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson * @author Henri Tremblay 2978c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson */ 3078c496fe0fac4c89993109340aec80d1afa3141fIan Parkinsonpublic class ObjenesisBase implements Objenesis { 3178c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson 3278c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson /** Strategy used by this Objenesi implementation to create classes */ 3378c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson protected final InstantiatorStrategy strategy; 3478c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson 3578c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson /** Strategy cache. Key = Class, Value = InstantiatorStrategy */ 3678c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson protected Map cache; 3778c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson 3878c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson /** 3978c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson * Constructor allowing to pick a strategy and using cache 4078c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson * 4178c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson * @param strategy Strategy to use 4278c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson */ 4378c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson public ObjenesisBase(InstantiatorStrategy strategy) { 4478c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson this(strategy, true); 4578c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson } 4678c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson 4778c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson /** 4878c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson * Flexible constructor allowing to pick the strategy and if caching should be used 4978c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson * 5078c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson * @param strategy Strategy to use 5178c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson * @param useCache If {@link ObjectInstantiator}s should be cached 5278c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson */ 5378c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson public ObjenesisBase(InstantiatorStrategy strategy, boolean useCache) { 5478c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson if(strategy == null) { 5578c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson throw new IllegalArgumentException("A strategy can't be null"); 5678c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson } 5778c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson this.strategy = strategy; 5878c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson this.cache = useCache ? new HashMap() : null; 5978c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson } 6078c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson 6178c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson public String toString() { 6278c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson return getClass().getName() + " using " + strategy.getClass().getName() 6378c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson + (cache == null ? " without" : " with") + " caching"; 6478c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson } 6578c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson 6678c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson /** 6778c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson * Will create a new object without any constructor being called 6878c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson * 6978c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson * @param clazz Class to instantiate 7078c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson * @return New instance of clazz 7178c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson */ 7278c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson public Object newInstance(Class clazz) { 7378c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson return getInstantiatorOf(clazz).newInstance(); 7478c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson } 7578c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson 7678c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson /** 7778c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson * Will pick the best instantiator for the provided class. If you need to create a lot of 7878c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson * instances from the same class, it is way more efficient to create them from the same 7978c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson * ObjectInstantiator than calling {@link #newInstance(Class)}. 8078c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson * 8178c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson * @param clazz Class to instantiate 8278c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson * @return Instantiator dedicated to the class 8378c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson */ 8478c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson public synchronized ObjectInstantiator getInstantiatorOf(Class clazz) { 8578c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson if(cache == null) { 8678c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson return strategy.newInstantiatorOf(clazz); 8778c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson } 8878c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson ObjectInstantiator instantiator = (ObjectInstantiator) cache.get(clazz.getName()); 8978c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson if(instantiator == null) { 9078c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson instantiator = strategy.newInstantiatorOf(clazz); 9178c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson cache.put(clazz.getName(), instantiator); 9278c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson } 9378c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson return instantiator; 9478c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson } 9578c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson 9678c496fe0fac4c89993109340aec80d1afa3141fIan Parkinson} 97