All Downloads are FREE. Search and download functionalities are using the official Maven repository.

src.openwfe.org.engine.dispatch.AbstractWorkItemDispatcher Maven / Gradle / Ivy

There is a newer version: 1.7.2
Show newest version
/*
 * Copyright (c) 2001-2006, John Mettraux, OpenWFE.org
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without 
 * modification, are permitted provided that the following conditions are met:
 * 
 * . Redistributions of source code must retain the above copyright notice, this
 *   list of conditions and the following disclaimer.  
 * 
 * . 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.
 * 
 * . Neither the name of the "OpenWFE" nor the names of its contributors may be
 *   used to endorse or promote products derived from this software without
 *   specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
 * AND ANY EXPRESS 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 THE COPYRIGHT OWNER OR 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.
 *
 * $Id: AbstractWorkItemDispatcher.java 2575 2006-05-08 11:52:39Z jmettraux $
 */

//
// AbstractWorkItemDispatcher.java
//
// [email protected]
//
// generated with 
// jtmpl 1.0.04 31.10.2002 John Mettraux ([email protected])
//

package openwfe.org.engine.dispatch;

import openwfe.org.MapUtils;
import openwfe.org.AbstractService;
import openwfe.org.ServiceException;
import openwfe.org.ApplicationContext;
import openwfe.org.engine.Definitions;
import openwfe.org.engine.listen.reply.OkReply;
import openwfe.org.engine.listen.reply.FatalReply;
import openwfe.org.engine.listen.reply.WarningReply;
import openwfe.org.engine.listen.reply.ListenerReply;
import openwfe.org.engine.workitem.WorkItemCoder;
import openwfe.org.engine.workitem.WorkItemCoderLoader;


/**
 * Half an implementation of a WorkItemDispatcher
 *
 * 

CVS Info : *
$Author: jmettraux $ *
$Date: 2006-05-08 13:52:39 +0200 (Mon, 08 May 2006) $ *
$Id: AbstractWorkItemDispatcher.java 2575 2006-05-08 11:52:39Z jmettraux $
* * @author [email protected] */ public abstract class AbstractWorkItemDispatcher extends AbstractService implements WorkItemDispatcher { private final static org.apache.log4j.Logger log = org.apache.log4j.Logger .getLogger(AbstractWorkItemDispatcher.class.getName()); // // CONSTANTS (definitions) /** * This init param (named 'workItemCoder') is used to set the workitem * coder used by this workitem dispatcher. */ public final static String WORKITEM_CODER = "workItemCoder"; // // FIELDS private String workItemCoderName = null; // // CONSTRUCTORS /** * The required initialized method of a service. */ public void init (final String serviceName, final ApplicationContext context, final java.util.Map serviceParams) throws ServiceException { super.init(serviceName, context, serviceParams); // // get workItemCoder this.workItemCoderName = MapUtils.getAsString (getParams(), WORKITEM_CODER); // check it final WorkItemCoderLoader loader = Definitions.getWorkItemCoderLoader(getContext()); WorkItemCoder coder = loader.getCoder(this.workItemCoderName); if (coder == null) { coder = loader.getDefaultCoder(); log.info("using default coder"); } this.workItemCoderName = coder.getName(); // // that's all folks log.info ("Dispatcher '"+getName()+ "' using coder '"+this.workItemCoderName+"'"); } // // METHODS /** * Returns the name of workitem coder service that this dispatcher * has to use. If null is returned, it means that this service will * use the default workitem coder (as found in * etc/engine/coder-configuratin.xml). */ public String getWorkItemCoderName () { return this.workItemCoderName; } /** * Internal usage : returns the workitem coder for usage. */ protected WorkItemCoder instantiateEncoder () throws DispatchingException { WorkItemCoderLoader coderLoader = Definitions .getWorkItemCoderLoader(getContext()); WorkItemCoder coder = coderLoader.getDefaultCoder(); if (this.workItemCoderName != null) coder = coderLoader.getCoder(this.workItemCoderName); return coder; } /** * This method is used by dispatcher implementations. * It will throw a dispatching exception if and only if the * reply is a fatal one. */ protected Object handleReply (ListenerReply reply) throws DispatchingException { if (reply == null) { throw new DispatchingException("No reply from listener"); } if (reply instanceof FatalReply) { throw new FatalDispatchingException((FatalReply)reply); } if (reply instanceof OkReply) { log.debug("Listener replied 'ok'"); return ((OkReply)reply).getConsumerResult(); } WarningReply warn = (WarningReply)reply; StringBuffer sb = new StringBuffer(); sb.append("listener warned :\n"); sb.append(warn.getMessage()); sb.append('\n'); sb.append(warn.getExceptionMessage()); sb.append('\n'); sb.append(warn.getExceptionStackTrace()); log.warn(sb.toString()); return null; } }





© 2015 - 2025 Weber Informatics LLC | Privacy Policy