| /* |
| * 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 com.alibaba.com.caucho.hessian.HessianException; |
| |
| import java.io.IOException; |
| import java.util.logging.Logger; |
| |
| /** |
| * Serializing an object. |
| */ |
| abstract public class AbstractSerializer implements Serializer { |
| public static final NullSerializer NULL = new NullSerializer(); |
| |
| protected static final Logger log |
| = Logger.getLogger(AbstractSerializer.class.getName()); |
| |
| @Override |
| public void writeObject(Object obj, AbstractHessianOutput out) |
| throws IOException { |
| if (out.addRef(obj)) { |
| return; |
| } |
| |
| try { |
| Object replace = writeReplace(obj); |
| |
| if (replace != null) { |
| // out.removeRef(obj); |
| |
| out.writeObject(replace); |
| |
| out.replaceRef(replace, obj); |
| |
| return; |
| } |
| } catch (RuntimeException e) { |
| throw e; |
| } catch (Exception e) { |
| // log.log(Level.FINE, e.toString(), e); |
| throw new HessianException(e); |
| } |
| |
| Class<?> cl = getClass(obj); |
| |
| int ref = out.writeObjectBegin(cl.getName()); |
| |
| if (ref < -1) { |
| writeObject10(obj, out); |
| } else { |
| if (ref == -1) { |
| writeDefinition20(cl, out); |
| |
| out.writeObjectBegin(cl.getName()); |
| } |
| |
| writeInstance(obj, out); |
| } |
| } |
| |
| protected Object writeReplace(Object obj) { |
| return null; |
| } |
| |
| protected Class<?> getClass(Object obj) { |
| return obj.getClass(); |
| } |
| |
| protected void writeObject10(Object obj, |
| AbstractHessianOutput out) |
| throws IOException { |
| throw new UnsupportedOperationException(getClass().getName()); |
| } |
| |
| protected void writeDefinition20(Class<?> cl, |
| AbstractHessianOutput out) |
| throws IOException { |
| throw new UnsupportedOperationException(getClass().getName()); |
| } |
| |
| protected void writeInstance(Object obj, |
| AbstractHessianOutput out) |
| throws IOException { |
| throw new UnsupportedOperationException(getClass().getName()); |
| } |
| |
| /** |
| * The NullSerializer exists as a marker for the factory classes so |
| * they save a null result. |
| */ |
| static final class NullSerializer extends AbstractSerializer { |
| public void writeObject(Object obj, AbstractHessianOutput out) |
| throws IOException { |
| throw new IllegalStateException(getClass().getName()); |
| } |
| } |
| } |