| /* |
| * Copyright (c) 2001-2008 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 "Burlap", "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.hessian.io; |
| |
| import java.io.IOException; |
| import java.lang.reflect.Constructor; |
| import java.lang.reflect.Field; |
| import java.lang.reflect.InvocationTargetException; |
| import java.lang.reflect.Method; |
| import java.lang.reflect.Modifier; |
| import java.lang.reflect.ParameterizedType; |
| import java.lang.reflect.Type; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.logging.Logger; |
| |
| /** |
| * Serializing an object for known object types. |
| */ |
| public class JavaDeserializer extends AbstractMapDeserializer { |
| private static final Logger log |
| = Logger.getLogger(JavaDeserializer.class.getName()); |
| |
| private Class _type; |
| private HashMap _fieldMap; |
| private Method _readResolve; |
| private Constructor _constructor; |
| private Object[] _constructorArgs; |
| |
| public JavaDeserializer(Class cl) { |
| _type = cl; |
| _fieldMap = getFieldMap(cl); |
| |
| _readResolve = getReadResolve(cl); |
| |
| if (_readResolve != null) { |
| _readResolve.setAccessible(true); |
| } |
| |
| Constructor[] constructors = cl.getDeclaredConstructors(); |
| long bestCost = Long.MAX_VALUE; |
| |
| for (int i = 0; i < constructors.length; i++) { |
| Class[] param = constructors[i].getParameterTypes(); |
| long cost = 0; |
| |
| for (int j = 0; j < param.length; j++) { |
| cost = 4 * cost; |
| |
| if (Object.class.equals(param[j])) |
| cost += 1; |
| else if (String.class.equals(param[j])) |
| cost += 2; |
| else if (int.class.equals(param[j])) |
| cost += 3; |
| else if (long.class.equals(param[j])) |
| cost += 4; |
| else if (param[j].isPrimitive()) |
| cost += 5; |
| else |
| cost += 6; |
| } |
| |
| if (cost < 0 || cost > (1 << 48)) |
| cost = 1 << 48; |
| |
| cost += (long) param.length << 48; |
| |
| if (cost < bestCost) { |
| _constructor = constructors[i]; |
| bestCost = cost; |
| } |
| } |
| |
| if (_constructor != null) { |
| _constructor.setAccessible(true); |
| Class[] params = _constructor.getParameterTypes(); |
| _constructorArgs = new Object[params.length]; |
| for (int i = 0; i < params.length; i++) { |
| _constructorArgs[i] = getParamArg(params[i]); |
| } |
| } |
| } |
| |
| /** |
| * Creates a map of the classes fields. |
| */ |
| protected static Object getParamArg(Class cl) { |
| if (!cl.isPrimitive()) |
| return null; |
| else if (boolean.class.equals(cl)) |
| return Boolean.FALSE; |
| else if (byte.class.equals(cl)) |
| return new Byte((byte) 0); |
| else if (short.class.equals(cl)) |
| return new Short((short) 0); |
| else if (char.class.equals(cl)) |
| return new Character((char) 0); |
| else if (int.class.equals(cl)) |
| return Integer.valueOf(0); |
| else if (long.class.equals(cl)) |
| return Long.valueOf(0); |
| else if (float.class.equals(cl)) |
| return Float.valueOf(0); |
| else if (double.class.equals(cl)) |
| return Double.valueOf(0); |
| else |
| throw new UnsupportedOperationException(); |
| } |
| |
| static void logDeserializeError(Field field, Object obj, Object value, |
| Throwable e) |
| throws IOException { |
| String fieldName = (field.getDeclaringClass().getName() |
| + "." + field.getName()); |
| |
| if (e instanceof HessianFieldException) |
| throw (HessianFieldException) e; |
| else if (e instanceof IOException) |
| throw new HessianFieldException(fieldName + ": " + e.getMessage(), e); |
| |
| if (value != null) |
| throw new HessianFieldException(fieldName + ": " + value.getClass().getName() + " (" + value + ")" |
| + " cannot be assigned to '" + field.getType().getName() + "'", e); |
| else |
| throw new HessianFieldException(fieldName + ": " + field.getType().getName() + " cannot be assigned from null", e); |
| } |
| |
| @Override |
| public Class getType() { |
| return _type; |
| } |
| |
| @Override |
| public Object readMap(AbstractHessianInput in) |
| throws IOException { |
| try { |
| Object obj = instantiate(); |
| |
| return readMap(in, obj); |
| } catch (IOException e) { |
| throw e; |
| } catch (RuntimeException e) { |
| throw e; |
| } catch (Exception e) { |
| throw new IOExceptionWrapper(_type.getName() + ":" + e.getMessage(), e); |
| } |
| } |
| |
| @Override |
| public Object readObject(AbstractHessianInput in, String[] fieldNames) |
| throws IOException { |
| try { |
| Object obj = instantiate(); |
| |
| return readObject(in, obj, fieldNames); |
| } catch (IOException e) { |
| throw e; |
| } catch (RuntimeException e) { |
| throw e; |
| } catch (Exception e) { |
| throw new IOExceptionWrapper(_type.getName() + ":" + e.getMessage(), e); |
| } |
| } |
| |
| /** |
| * Returns the readResolve method |
| */ |
| protected Method getReadResolve(Class cl) { |
| for (; cl != null; cl = cl.getSuperclass()) { |
| Method[] methods = cl.getDeclaredMethods(); |
| |
| for (int i = 0; i < methods.length; i++) { |
| Method method = methods[i]; |
| |
| if (method.getName().equals("readResolve") && |
| method.getParameterTypes().length == 0) |
| return method; |
| } |
| } |
| |
| return null; |
| } |
| |
| public Object readMap(AbstractHessianInput in, Object obj) |
| throws IOException { |
| try { |
| int ref = in.addRef(obj); |
| |
| while (!in.isEnd()) { |
| Object key = in.readObject(); |
| |
| FieldDeserializer deser = (FieldDeserializer) _fieldMap.get(key); |
| |
| if (deser != null) |
| deser.deserialize(in, obj); |
| else |
| in.readObject(); |
| } |
| |
| in.readMapEnd(); |
| |
| Object resolve = resolve(obj); |
| |
| if (obj != resolve) |
| in.setRef(ref, resolve); |
| |
| return resolve; |
| } catch (IOException e) { |
| throw e; |
| } catch (Exception e) { |
| throw new IOExceptionWrapper(e); |
| } |
| } |
| |
| public Object readObject(AbstractHessianInput in, |
| Object obj, |
| String[] fieldNames) |
| throws IOException { |
| try { |
| int ref = in.addRef(obj); |
| |
| for (int i = 0; i < fieldNames.length; i++) { |
| String name = fieldNames[i]; |
| |
| FieldDeserializer deser = (FieldDeserializer) _fieldMap.get(name); |
| |
| if (deser != null) |
| deser.deserialize(in, obj); |
| else |
| in.readObject(); |
| } |
| |
| Object resolve = resolve(obj); |
| |
| if (obj != resolve) |
| in.setRef(ref, resolve); |
| |
| return resolve; |
| } catch (IOException e) { |
| throw e; |
| } catch (Exception e) { |
| throw new IOExceptionWrapper(obj.getClass().getName() + ":" + e, e); |
| } |
| } |
| |
| private Object resolve(Object obj) |
| throws Exception { |
| // if there's a readResolve method, call it |
| try { |
| if (_readResolve != null) |
| return _readResolve.invoke(obj, new Object[0]); |
| } catch (InvocationTargetException e) { |
| if (e.getTargetException() != null) |
| throw e; |
| } |
| |
| return obj; |
| } |
| |
| protected Object instantiate() |
| throws Exception { |
| try { |
| if (_constructor != null) |
| return _constructor.newInstance(_constructorArgs); |
| else |
| return _type.newInstance(); |
| } catch (Exception e) { |
| throw new HessianProtocolException("'" + _type.getName() + "' could not be instantiated", e); |
| } |
| } |
| |
| /** |
| * Creates a map of the classes fields. |
| */ |
| protected HashMap getFieldMap(Class cl) { |
| HashMap fieldMap = new HashMap(); |
| |
| for (; cl != null; cl = cl.getSuperclass()) { |
| Field[] fields = cl.getDeclaredFields(); |
| for (int i = 0; i < fields.length; i++) { |
| Field field = fields[i]; |
| |
| if (Modifier.isTransient(field.getModifiers()) |
| || Modifier.isStatic(field.getModifiers())) |
| continue; |
| else if (fieldMap.get(field.getName()) != null) |
| continue; |
| |
| // XXX: could parameterize the handler to only deal with public |
| try { |
| field.setAccessible(true); |
| } catch (Throwable e) { |
| e.printStackTrace(); |
| } |
| |
| Class type = field.getType(); |
| FieldDeserializer deser; |
| |
| if (String.class.equals(type)) |
| deser = new StringFieldDeserializer(field); |
| else if (byte.class.equals(type)) { |
| deser = new ByteFieldDeserializer(field); |
| } else if (short.class.equals(type)) { |
| deser = new ShortFieldDeserializer(field); |
| } else if (int.class.equals(type)) { |
| deser = new IntFieldDeserializer(field); |
| } else if (long.class.equals(type)) { |
| deser = new LongFieldDeserializer(field); |
| } else if (float.class.equals(type)) { |
| deser = new FloatFieldDeserializer(field); |
| } else if (double.class.equals(type)) { |
| deser = new DoubleFieldDeserializer(field); |
| } else if (boolean.class.equals(type)) { |
| deser = new BooleanFieldDeserializer(field); |
| } else if (java.sql.Date.class.equals(type)) { |
| deser = new SqlDateFieldDeserializer(field); |
| } else if (java.sql.Timestamp.class.equals(type)) { |
| deser = new SqlTimestampFieldDeserializer(field); |
| } else if (java.sql.Time.class.equals(type)) { |
| deser = new SqlTimeFieldDeserializer(field); |
| } |
| // support generic type of map |
| else if (Map.class.equals(type) |
| && field.getGenericType() != field.getType()) { |
| deser = new ObjectMapFieldDeserializer(field); |
| } else if (List.class.equals(type) |
| && field.getGenericType() != field.getType()) { |
| deser = new ObjectListFieldDeserializer(field); |
| } else { |
| deser = new ObjectFieldDeserializer(field); |
| } |
| |
| fieldMap.put(field.getName(), deser); |
| } |
| } |
| |
| return fieldMap; |
| } |
| |
| abstract static class FieldDeserializer { |
| abstract void deserialize(AbstractHessianInput in, Object obj) |
| throws IOException; |
| } |
| |
| static class ObjectFieldDeserializer extends FieldDeserializer { |
| private final Field _field; |
| |
| ObjectFieldDeserializer(Field field) { |
| _field = field; |
| } |
| |
| @Override |
| void deserialize(AbstractHessianInput in, Object obj) |
| throws IOException { |
| Object value = null; |
| |
| try { |
| value = in.readObject(_field.getType()); |
| |
| _field.set(obj, value); |
| } catch (Exception e) { |
| logDeserializeError(_field, obj, value, e); |
| } |
| } |
| } |
| |
| static class BooleanFieldDeserializer extends FieldDeserializer { |
| private final Field _field; |
| |
| BooleanFieldDeserializer(Field field) { |
| _field = field; |
| } |
| |
| @Override |
| void deserialize(AbstractHessianInput in, Object obj) |
| throws IOException { |
| boolean value = false; |
| |
| try { |
| value = in.readBoolean(); |
| |
| _field.setBoolean(obj, value); |
| } catch (Exception e) { |
| logDeserializeError(_field, obj, value, e); |
| } |
| } |
| } |
| |
| static class ByteFieldDeserializer extends FieldDeserializer { |
| private final Field _field; |
| |
| ByteFieldDeserializer(Field field) { |
| _field = field; |
| } |
| |
| @Override |
| void deserialize(AbstractHessianInput in, Object obj) |
| throws IOException { |
| int value = 0; |
| |
| try { |
| value = in.readInt(); |
| |
| _field.setByte(obj, (byte) value); |
| } catch (Exception e) { |
| logDeserializeError(_field, obj, value, e); |
| } |
| } |
| } |
| |
| static class ShortFieldDeserializer extends FieldDeserializer { |
| private final Field _field; |
| |
| ShortFieldDeserializer(Field field) { |
| _field = field; |
| } |
| |
| @Override |
| void deserialize(AbstractHessianInput in, Object obj) |
| throws IOException { |
| int value = 0; |
| |
| try { |
| value = in.readInt(); |
| |
| _field.setShort(obj, (short) value); |
| } catch (Exception e) { |
| logDeserializeError(_field, obj, value, e); |
| } |
| } |
| } |
| |
| static class ObjectMapFieldDeserializer extends FieldDeserializer { |
| private final Field _field; |
| |
| ObjectMapFieldDeserializer(Field field) { |
| _field = field; |
| } |
| |
| @Override |
| void deserialize(AbstractHessianInput in, Object obj) |
| throws IOException { |
| Object value = null; |
| |
| try { |
| |
| Type[] types = ((ParameterizedType) _field.getGenericType()).getActualTypeArguments(); |
| value = in.readObject(_field.getType(), |
| isPrimitive(types[0]) ? (Class<?>) types[0] : null, |
| isPrimitive(types[1]) ? (Class<?>) types[1] : null |
| ); |
| |
| _field.set(obj, value); |
| } catch (Exception e) { |
| logDeserializeError(_field, obj, value, e); |
| } |
| } |
| } |
| |
| static class ObjectListFieldDeserializer extends FieldDeserializer { |
| private final Field _field; |
| |
| ObjectListFieldDeserializer(Field field) { |
| _field = field; |
| } |
| |
| @Override |
| void deserialize(AbstractHessianInput in, Object obj) |
| throws IOException { |
| Object value = null; |
| |
| try { |
| |
| Type[] types = ((ParameterizedType) _field.getGenericType()).getActualTypeArguments(); |
| value = in.readObject(_field.getType(), |
| isPrimitive(types[0]) ? (Class<?>) types[0] : null |
| ); |
| |
| _field.set(obj, value); |
| } catch (Exception e) { |
| logDeserializeError(_field, obj, value, e); |
| } |
| } |
| } |
| |
| static class IntFieldDeserializer extends FieldDeserializer { |
| private final Field _field; |
| |
| IntFieldDeserializer(Field field) { |
| _field = field; |
| } |
| |
| @Override |
| void deserialize(AbstractHessianInput in, Object obj) |
| throws IOException { |
| int value = 0; |
| |
| try { |
| value = in.readInt(); |
| |
| _field.setInt(obj, value); |
| } catch (Exception e) { |
| logDeserializeError(_field, obj, value, e); |
| } |
| } |
| } |
| |
| static class LongFieldDeserializer extends FieldDeserializer { |
| private final Field _field; |
| |
| LongFieldDeserializer(Field field) { |
| _field = field; |
| } |
| |
| @Override |
| void deserialize(AbstractHessianInput in, Object obj) |
| throws IOException { |
| long value = 0; |
| |
| try { |
| value = in.readLong(); |
| |
| _field.setLong(obj, value); |
| } catch (Exception e) { |
| logDeserializeError(_field, obj, value, e); |
| } |
| } |
| } |
| |
| static class FloatFieldDeserializer extends FieldDeserializer { |
| private final Field _field; |
| |
| FloatFieldDeserializer(Field field) { |
| _field = field; |
| } |
| |
| @Override |
| void deserialize(AbstractHessianInput in, Object obj) |
| throws IOException { |
| double value = 0; |
| |
| try { |
| value = in.readDouble(); |
| |
| _field.setFloat(obj, (float) value); |
| } catch (Exception e) { |
| logDeserializeError(_field, obj, value, e); |
| } |
| } |
| } |
| |
| static class DoubleFieldDeserializer extends FieldDeserializer { |
| private final Field _field; |
| |
| DoubleFieldDeserializer(Field field) { |
| _field = field; |
| } |
| |
| @Override |
| void deserialize(AbstractHessianInput in, Object obj) |
| throws IOException { |
| double value = 0; |
| |
| try { |
| value = in.readDouble(); |
| |
| _field.setDouble(obj, value); |
| } catch (Exception e) { |
| logDeserializeError(_field, obj, value, e); |
| } |
| } |
| } |
| |
| static class StringFieldDeserializer extends FieldDeserializer { |
| private final Field _field; |
| |
| StringFieldDeserializer(Field field) { |
| _field = field; |
| } |
| |
| @Override |
| void deserialize(AbstractHessianInput in, Object obj) |
| throws IOException { |
| String value = null; |
| |
| try { |
| value = in.readString(); |
| |
| _field.set(obj, value); |
| } catch (Exception e) { |
| logDeserializeError(_field, obj, value, e); |
| } |
| } |
| } |
| |
| static class SqlDateFieldDeserializer extends FieldDeserializer { |
| private final Field _field; |
| |
| SqlDateFieldDeserializer(Field field) { |
| _field = field; |
| } |
| |
| @Override |
| void deserialize(AbstractHessianInput in, Object obj) |
| throws IOException { |
| java.sql.Date value = null; |
| |
| try { |
| java.util.Date date = (java.util.Date) in.readObject(); |
| if (date != null) |
| value = new java.sql.Date(date.getTime()); |
| |
| _field.set(obj, value); |
| } catch (Exception e) { |
| logDeserializeError(_field, obj, value, e); |
| } |
| } |
| } |
| |
| static class SqlTimestampFieldDeserializer extends FieldDeserializer { |
| private final Field _field; |
| |
| SqlTimestampFieldDeserializer(Field field) { |
| _field = field; |
| } |
| |
| @Override |
| void deserialize(AbstractHessianInput in, Object obj) |
| throws IOException { |
| java.sql.Timestamp value = null; |
| |
| try { |
| java.util.Date date = (java.util.Date) in.readObject(); |
| if (date != null) |
| value = new java.sql.Timestamp(date.getTime()); |
| |
| _field.set(obj, value); |
| } catch (Exception e) { |
| logDeserializeError(_field, obj, value, e); |
| } |
| } |
| } |
| |
| static class SqlTimeFieldDeserializer extends FieldDeserializer { |
| private final Field _field; |
| |
| SqlTimeFieldDeserializer(Field field) { |
| _field = field; |
| } |
| |
| @Override |
| void deserialize(AbstractHessianInput in, Object obj) |
| throws IOException { |
| java.sql.Time value = null; |
| |
| try { |
| java.util.Date date = (java.util.Date) in.readObject(); |
| if (date != null) value = new java.sql.Time(date.getTime()); |
| |
| _field.set(obj, value); |
| } catch (Exception e) { |
| logDeserializeError(_field, obj, value, e); |
| } |
| } |
| } |
| |
| /** |
| * @see java.lang.Boolean#TYPE |
| * @see java.lang.Character#TYPE |
| * @see java.lang.Byte#TYPE |
| * @see java.lang.Short#TYPE |
| * @see java.lang.Integer#TYPE |
| * @see java.lang.Long#TYPE |
| * @see java.lang.Float#TYPE |
| * @see java.lang.Double#TYPE |
| * @see java.lang.Void#TYPE |
| */ |
| private static boolean isPrimitive(Type type) { |
| try { |
| if (type != null) { |
| if (type instanceof Class<?>) { |
| Class<?> clazz = (Class<?>) type; |
| return clazz.isPrimitive() |
| || PRIMITIVE_TYPE.containsKey(clazz.getName()); |
| } |
| } |
| } catch (Exception e) { |
| // ignore exception |
| } |
| return false; |
| } |
| |
| static final Map<String, Boolean> PRIMITIVE_TYPE = new HashMap<String, Boolean>() { |
| { |
| put(Boolean.class.getName(), true); |
| put(Character.class.getName(), true); |
| put(Byte.class.getName(), true); |
| put(Short.class.getName(), true); |
| put(Integer.class.getName(), true); |
| put(Long.class.getName(), true); |
| put(Float.class.getName(), true); |
| put(Double.class.getName(), true); |
| put(Void.class.getName(), true); |
| } |
| }; |
| } |