| /* |
| * 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 "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; |
| |
| /** |
| * Deserializing an object. |
| */ |
| public class AbstractDeserializer implements Deserializer { |
| public static final NullDeserializer NULL = new NullDeserializer(); |
| |
| public Class<?> getType() { |
| return Object.class; |
| } |
| |
| public boolean isReadResolve() { |
| return false; |
| } |
| |
| public Object readObject(AbstractHessianInput in) |
| throws IOException { |
| Object obj = in.readObject(); |
| |
| String className = getClass().getName(); |
| |
| if (obj != null) |
| throw error(className + ": unexpected object " + obj.getClass().getName()); |
| else |
| throw error(className + ": unexpected null value"); |
| } |
| |
| public Object readList(AbstractHessianInput in, int length) |
| throws IOException { |
| throw new UnsupportedOperationException(String.valueOf(this)); |
| } |
| |
| public Object readLengthList(AbstractHessianInput in, int length) |
| throws IOException { |
| throw new UnsupportedOperationException(String.valueOf(this)); |
| } |
| |
| public Object readMap(AbstractHessianInput in) |
| throws IOException { |
| Object obj = in.readObject(); |
| |
| String className = getClass().getName(); |
| |
| if (obj != null) |
| throw error(className + ": unexpected object " + obj.getClass().getName()); |
| else |
| throw error(className + ": unexpected null value"); |
| } |
| |
| /** |
| * Creates the field array for a class. The default |
| * implementation returns a String[] array. |
| * |
| * @param len number of items in the array |
| * @return the new empty array |
| */ |
| public Object[] createFields(int len) { |
| return new String[len]; |
| } |
| |
| /** |
| * Creates a field value class. The default |
| * implementation returns the String. |
| * |
| * @param len number of items in the array |
| * @return the new empty array |
| */ |
| public Object createField(String name) { |
| return name; |
| } |
| |
| @Override |
| public Object readObject(AbstractHessianInput in, |
| String[] fieldNames) |
| throws IOException { |
| return readObject(in, (Object[]) fieldNames); |
| } |
| |
| /** |
| * Reads an object instance from the input stream |
| */ |
| @Override |
| public Object readObject(AbstractHessianInput in, |
| Object[] fields) |
| throws IOException { |
| throw new UnsupportedOperationException(toString()); |
| } |
| |
| protected HessianProtocolException error(String msg) { |
| return new HessianProtocolException(msg); |
| } |
| |
| protected String codeName(int ch) { |
| if (ch < 0) |
| return "end of file"; |
| else |
| return "0x" + Integer.toHexString(ch & 0xff); |
| } |
| |
| /** |
| * The NullDeserializer exists as a marker for the factory classes so |
| * they save a null result. |
| */ |
| static final class NullDeserializer extends AbstractDeserializer { |
| } |
| } |