enginetester.java

一个工作流设计及定义的系统,可以直接与数据库结合进行系统工作流程的定义及应用.

/*
 * Copyright (c) 2005, 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: EngineTester.java,v 1.2 2005/07/28 16:33:08 jmettraux Exp $
 */

//
// EngineTester.java.java
//
// [e-mail]
//
// generated with 
// jtmpl 1.1.01 2004/05/19 ([e-mail])
//

package openwfe.org.embed;

import openwfe.org.engine.workitem.WorkItem;
import openwfe.org.engine.workitem.LaunchItem;
import openwfe.org.engine.workitem.InFlowWorkItem;
//import openwfe.org.engine.workitem.AttributeUtils;
import openwfe.org.embed.engine.Engine;
import openwfe.org.embed.impl.engine.InMemoryEngine;
import openwfe.org.embed.impl.engine.AbstractEmbeddedParticipant;


/**
 * Testing the embedded engine
 *
 * <p><font size=2>CVS Info :
 * <br>$Author: jmettraux $
 * <br>$Id: EngineTester.java,v 1.2 2005/07/28 16:33:08 jmettraux Exp $ </font>
 *
 * @author [e-mail]
 */
public class EngineTester
{

    /*
    private final static org.apache.log4j.Logger log = org.apache.log4j.Logger
        .getLogger(EngineTester.class.getName());
    */

    private final static String F_INPUT = "__input__";

    //
    // MAIN

    public static void main (String[] args)
        throws Exception
    {
        //
        // prepare engine

        Engine engine = new InMemoryEngine();

        // register participants

        for (int i=0; i<10; i++)
        {
            engine.registerParticipant
                (new AbstractEmbeddedParticipant("p"+i)
                 {
                     public void consume (WorkItem wi)
                         throws Exception
                     {
                         System.out.print(this.getRegex()+" ");

                         if (wi.getAttributes().hasKey(F_INPUT))
                         {
                             System.out.print
                                 (wi.getAttributes().sget(F_INPUT)+" ");
                         }

                         replyToEngine((InFlowWorkItem)wi);
                     }
                 });
        }

        //
        // read flow form stdin

        StringBuffer sb = new StringBuffer();

        java.io.BufferedReader br = new java.io.BufferedReader
            (new java.io.InputStreamReader(System.in));

        while (true)
        {
            String line = br.readLine();

            if (line == null) break;

            sb.append(line);
            sb.append("\n");
        }

        //
        // launch flow

        LaunchItem li = new LaunchItem();
        li.setWorkflowDefinitionUrl("field:__definition__");

        li.getAttributes().puts("__definition__", sb.toString());

        engine.launch(li);
    }

}