| /* |
| * 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.directmemory.lightning.internal.instantiator.gcj; |
| |
| import java.io.IOException; |
| import java.io.ObjectInputStream; |
| import java.lang.reflect.Method; |
| |
| import org.apache.directmemory.lightning.instantiator.ObjectInstantiator; |
| import org.apache.directmemory.lightning.internal.instantiator.ObjenesisException; |
| |
| /** |
| * 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 |
| implements ObjectInstantiator |
| { |
| |
| protected static Method newObjectMethod = null; |
| |
| protected 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<?> type; |
| |
| public GCJInstantiatorBase( Class<?> type ) |
| { |
| this.type = type; |
| initialize(); |
| } |
| |
| @Override |
| public abstract Object newInstance(); |
| } |