/* * JBoss, Home of Professional Open Source * Copyright 2005, JBoss Inc., and individual contributors as indicated * by the @authors tag. See the copyright.txt in the distribution for a * full listing of individual contributors. * * This is free software; you can redistribute it and/or modify it * under the terms of the GNU Lesser General Public License as * published by the Free Software Foundation; either version 2.1 of * the License, or (at your option) any later version. * * This software is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this software; if not, write to the Free * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA * 02110-1301 USA, or see the FSF site: http://www.fsf.org. */ package org.jbpm.pvm.internal.svc; import java.io.ByteArrayInputStream; import java.io.ByteArrayOutputStream; import java.io.ObjectInputStream; import java.io.ObjectOutputStream; import org.jbpm.api.JbpmException; import org.jbpm.api.cmd.Command; import org.jbpm.internal.log.Log; /** * @author Tom Baeyens */ public class SerializeInterceptor extends Interceptor { private static final Log log = Log.getLog(SerializeInterceptor.class.getName()); public T execute(Command command) { log.info("serializing command "+command); Command serializedCommand = (Command) serialize(command); T returnValue = next.execute(serializedCommand); T serializedReturnValue = (T) serialize(returnValue); return serializedReturnValue; } public Object serialize(Object o) { try { ByteArrayOutputStream baos = new ByteArrayOutputStream(); ObjectOutputStream oos = new ObjectOutputStream(baos); oos.writeObject(o); ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray()); ObjectInputStream ois = new ObjectInputStream(bais); return ois.readObject(); } catch (Exception e) { throw new JbpmException("serialization exception", e); } } }