| /** |
| * Copyright 2006-2017 the original author or authors. |
| * |
| * Licensed 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.objenesis.instantiator.gcj; |
| |
| import java.io.IOException; |
| import java.io.ObjectInputStream; |
| import java.lang.reflect.Method; |
| |
| import org.objenesis.ObjenesisException; |
| import org.objenesis.instantiator.ObjectInstantiator; |
| |
| /** |
| * Base class for GCJ-based instantiators. It initializes reflection access to method |
| * ObjectInputStream.newObject, as well as creating a dummy ObjectInputStream to be used as the |
| * "this" argument for the method. |
| * |
| * @author Leonardo Mesquita |
| */ |
| public abstract class GCJInstantiatorBase<T> implements ObjectInstantiator<T> { |
| static Method newObjectMethod = null; |
| static ObjectInputStream dummyStream; |
| |
| private static class DummyStream extends ObjectInputStream { |
| public DummyStream() throws IOException { |
| } |
| } |
| |
| private static void initialize() { |
| if(newObjectMethod == null) { |
| try { |
| newObjectMethod = ObjectInputStream.class.getDeclaredMethod("newObject", new Class[] { |
| Class.class, Class.class}); |
| newObjectMethod.setAccessible(true); |
| dummyStream = new DummyStream(); |
| } |
| catch(RuntimeException e) { |
| throw new ObjenesisException(e); |
| } |
| catch(NoSuchMethodException e) { |
| throw new ObjenesisException(e); |
| } |
| catch(IOException e) { |
| throw new ObjenesisException(e); |
| } |
| } |
| } |
| |
| protected final Class<T> type; |
| |
| public GCJInstantiatorBase(Class<T> type) { |
| this.type = type; |
| initialize(); |
| } |
| |
| public abstract T newInstance(); |
| } |