| /* |
| * Copyright (c) 2001-2004 Caucho Technology, Inc. All rights reserved. |
| * |
| * The Apache Software License, Version 1.1 |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * 3. The end-user documentation included with the redistribution, if |
| * any, must include the following acknowlegement: |
| * "This product includes software developed by the |
| * Caucho Technology (http://www.caucho.com/)." |
| * Alternately, this acknowlegement may appear in the software itself, |
| * if and wherever such third-party acknowlegements normally appear. |
| * |
| * 4. The names "Hessian", "Resin", and "Caucho" must not be used to |
| * endorse or promote products derived from this software without prior |
| * written permission. For written permission, please contact |
| * info@caucho.com. |
| * |
| * 5. Products derived from this software may not be called "Resin" |
| * nor may "Resin" appear in their names without prior written |
| * permission of Caucho Technology. |
| * |
| * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL CAUCHO TECHNOLOGY OR ITS CONTRIBUTORS |
| * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, |
| * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT |
| * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR |
| * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE |
| * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN |
| * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| * |
| * @author Scott Ferguson |
| */ |
| |
| package com.alibaba.com.caucho.hessian3.io; |
| |
| import java.io.IOException; |
| import java.lang.reflect.Constructor; |
| import java.lang.reflect.Type; |
| import java.util.HashMap; |
| import java.util.Map; |
| import java.util.SortedMap; |
| import java.util.TreeMap; |
| |
| /** |
| * Deserializing a JDK 1.2 Map. |
| */ |
| public class MapDeserializer extends AbstractMapDeserializer { |
| private Class _type; |
| private Constructor _ctor; |
| |
| public MapDeserializer(Class type) { |
| if (type == null) |
| type = HashMap.class; |
| |
| _type = type; |
| |
| Constructor[] ctors = type.getConstructors(); |
| for (int i = 0; i < ctors.length; i++) { |
| if (ctors[i].getParameterTypes().length == 0) |
| _ctor = ctors[i]; |
| } |
| |
| if (_ctor == null) { |
| try { |
| _ctor = HashMap.class.getConstructor(new Class[0]); |
| } catch (Exception e) { |
| throw new IllegalStateException(e); |
| } |
| } |
| } |
| |
| @Override |
| public Class getType() { |
| if (_type != null) |
| return _type; |
| else |
| return HashMap.class; |
| } |
| |
| @Override |
| public Object readMap(AbstractHessianInput in) |
| throws IOException { |
| return readMap(in, null, null); |
| } |
| |
| /** |
| * support generic type of map, fix the type of short serialization <p> |
| * eg: Map<String, Short> serialize & deserialize |
| * |
| */ |
| @Override |
| public Object readMap(AbstractHessianInput in, Class<?> expectKeyType, Class<?> expectValueType) throws IOException { |
| Map map; |
| |
| if (_type == null) |
| map = new HashMap(); |
| else if (_type.equals(Map.class)) |
| map = new HashMap(); |
| else if (_type.equals(SortedMap.class)) |
| map = new TreeMap(); |
| else { |
| try { |
| map = (Map) _ctor.newInstance(); |
| } catch (Exception e) { |
| throw new IOExceptionWrapper(e); |
| } |
| } |
| |
| in.addRef(map); |
| |
| doReadMap(in, map, expectKeyType, expectValueType); |
| |
| in.readEnd(); |
| |
| return map; |
| } |
| |
| protected void doReadMap(AbstractHessianInput in, Map map, Class<?> keyType, Class<?> valueType) throws IOException { |
| Deserializer keyDeserializer = null, valueDeserializer = null; |
| |
| SerializerFactory factory = findSerializerFactory(in); |
| if(keyType != null){ |
| keyDeserializer = factory.getDeserializer(keyType.getName()); |
| } |
| if(valueType != null){ |
| valueDeserializer = factory.getDeserializer(valueType.getName()); |
| } |
| |
| while (!in.isEnd()) { |
| map.put(keyDeserializer != null ? keyDeserializer.readObject(in) : in.readObject(), |
| valueDeserializer != null? valueDeserializer.readObject(in) : in.readObject()); |
| } |
| } |
| |
| @Override |
| public Object readObject(AbstractHessianInput in, |
| String[] fieldNames) |
| throws IOException { |
| Map map = createMap(); |
| |
| int ref = in.addRef(map); |
| |
| for (int i = 0; i < fieldNames.length; i++) { |
| String name = fieldNames[i]; |
| |
| map.put(name, in.readObject()); |
| } |
| |
| return map; |
| } |
| |
| private Map createMap() |
| throws IOException { |
| |
| if (_type == null) |
| return new HashMap(); |
| else if (_type.equals(Map.class)) |
| return new HashMap(); |
| else if (_type.equals(SortedMap.class)) |
| return new TreeMap(); |
| else { |
| try { |
| return (Map) _ctor.newInstance(); |
| } catch (Exception e) { |
| throw new IOExceptionWrapper(e); |
| } |
| } |
| } |
| } |