wfcmd.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: WfCmd.java,v 1.11 2005/05/17 16:41:02 jmettraux Exp $
 */

package openwfe.org.wlshell;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.rmi.Naming;
import java.util.Date;
import java.util.Iterator;
import java.util.List;
import javax.security.auth.Subject;

import openwfe.org.shell.CmdHandler;
import openwfe.org.rmi.session.WorkSessionServer;
import openwfe.org.engine.workitem.Attribute;
import openwfe.org.engine.workitem.HistoryItem;
import openwfe.org.engine.workitem.InFlowWorkItem;
import openwfe.org.engine.workitem.LaunchItem;
import openwfe.org.engine.workitem.LongAttribute;
import openwfe.org.engine.workitem.StringAttribute;
import openwfe.org.engine.workitem.StringMapAttribute;
import openwfe.org.engine.expressions.FlowExpressionId;
import openwfe.org.worklist.Header;
import openwfe.org.worklist.Launchable;
import openwfe.org.worklist.WorkSession;

/**
 * An RMI shell for tinkering with a worklist
 *
 * <p><font size=2>CVS Info :
 * <br>$Author: jmettraux $
 * <br>$Date: 2005/05/17 16:41:02 $
 * <br>$Id: WfCmd.java,v 1.11 2005/05/17 16:41:02 jmettraux Exp $ </font>
 *
 * @author Peter Mayne
 * @author [e-mail]
 */
public class WfCmd
{
    public final static String BANNER = "\n" + WfCmd.class.getName() + "\nBy Peter Mayne\n$Id: WfCmd.java,v 1.11 2005/05/17 16:41:02 jmettraux Exp $\n";

    // The default maximum number of workitems that will be displayed.
    //    
    final static int DEFAULT_LIMIT = 1000;

    private String url;
    private WorkSession session;
    private String prompt;
    private String language = null;
    private BufferedReader reader;

    public WfCmd(String url, WorkSession session, BufferedReader reader)
    {
        this.url = url;
        this.session = session;
        prompt = url + "> ";
        this.reader = reader;
    }
    
    public void help_count()
    {
        System.out.println("count [<storeName>]");
        System.out.println("  Returns the count of workitems in the store. If you don't provide a");
        System.out.println("  storeName, it will be set to 'default'.");
    }

    /**
     * Display the number of workflow items in a store.
     * 
     * @param args
     * @return
     * @throws Exception
     */
    public Boolean do_count(String[] args) throws Exception
    {
        String storeName = "default";

        if (args.length > 0)
        {    
            storeName = args[0];
        }

        System.out.print("WorkItems in store '" + storeName + "': ");
        int count = session.countWorkItems(storeName);
        System.out.println(count);
        
        return CmdHandler.DO_NOT_EXIT;
    }

    public void help_display()
    {
        System.out.println("display <store> <workflow item id>");
        System.out.println("  Display the specified workflow item.");
    }

    /**
     * Show a workflow item.
     * 
     * @param args
     * @return
     * @throws Exception
     */        
    public Boolean do_display (final String[] args) 
        throws Exception
    {
        if (args.length!=2)
        {
            System.out.println("Required parameters not specified");
            return CmdHandler.DO_NOT_EXIT;
        }
        
        String storeName = args[0];
        String id = args [1];

        Header header = getHeader(session, storeName, id);
        
        if (header!=null)
        {
            FlowExpressionId fei = header.getExpressionId();
            InFlowWorkItem wi = session.get(storeName, fei);
            displayWorkItem(header, wi);
            
        }
        else
        {
            System.out.println("No such work item.");
        }
        
        return CmdHandler.DO_NOT_EXIT;            
    }
    
    public void help_edit()
    {
        System.out.println("edit <store> <workflow item id>");
        System.out.println("  Edit the specified workflow item.");
    }
    
    /**
     * Edit a workflow item.
     * 
     * @param args
     * @return
     * @throws Exception
     */
    public Boolean do_edit (String[] args) throws Exception
    {
        if(args.length!=2)
        {
            System.out.println("Required parameters not specified");
            return CmdHandler.DO_NOT_EXIT;
        }
        
        String storeName = args[0];
        String id = args[1];

        Header header = getHeader(session, storeName, id);
        
        // Start a new workitem editor.
        //
        new WfCmdEdit(session, storeName, header, reader).run();

        return CmdHandler.DO_NOT_EXIT;
    }
    
    public void help_headers ()
    {
        System.out.println("headers [<storeName> [<limit>]]");
        System.out.println("  Returns headers of the workitem in a given store (defaults to");
        System.out.println("  store 'default'). The 'limit' parameters defaults to " + DEFAULT_LIMIT + " and allows you");
        System.out.println("  to specify how may headers you want to receive at max.");
    }

    public Boolean do_headers (String[] args) throws Exception
    {
        String storeName = "default";
        int limit = DEFAULT_LIMIT;

        String sLimit = null;

        if (args.length > 0)
        {
            storeName = args[0];
        }
        if (args.length > 1)
        {
            sLimit = args[1];
        }

        if (sLimit != null)
        {
            try
            {
                limit = Integer.parseInt(sLimit);
            }
            catch (NumberFormatException nfe)
            {
                System.out.println("Cannot read '" + sLimit + "': setting limit to " + limit);
            }
        }

        List headers = session.getHeaders(storeName, limit);

        // Display the headers.
        //

        System.out.println();

        final Iterator it = headers.iterator();
        while (it.hasNext())
        {
            final Header header = (Header)it.next();
            final StringMapAttribute sma = header.getAttributes();
            
            System.out.println("Workflow " + sma.get(Header.WF_DEFINITION_NAME) + " " + sma.get(Header.WF_DEFINITION_REVISION) + " : " + sma.get(Header.WF_INSTANCE_ID));
            
            StringAttribute subject = (StringAttribute)sma.get(Header.SUBJECT);
            System.out.println("\"" + (subject!=null ? subject.toString() : "") + "\"");
            System.out.println("Dispatch time : " + sma.get(Header.DISPATCH_TIME));
            System.out.println("Last modified : " + header.getLastModified());
            System.out.println("Participant   : " + sma.get(Header.PARTICIPANT_NAME));
            System.out.println(".");

            System.out.println("headers 'en vrac' :");
            
            final java.util.Iterator jt = sma.stringKeySet().iterator();
            while (jt.hasNext())
            {
                final String key = (String)jt.next();
                System.out.println(" * '"+key+"': '"+sma.get(key)+"'");
            }

            if (header.isLocked()) System.out.println("Locked");
            
            System.out.println();
        }
        
        return CmdHandler.DO_NOT_EXIT;
    }
    
    public void help_launch()
    {
        System.out.println("launch <url>"); // | flow <name> <version>");
        System.out.println("  Launch the specified workflow.");
//        System.out.println("  Specify the URL of the workflow."); //, or its name and version.");
    }
    
    public Boolean do_launch(String[] args)
    {
        if(args.length!=1)
        {
            System.out.println("Incorrect parameters specified");
            return CmdHandler.DO_NOT_EXIT;
        }

        String url = args[0];
        
        try
        {
            Launchable launch = null;
            LaunchItem li = null;
            for(Iterator it = session.getLaunchables().iterator(); it.hasNext();)
            {
                launch = (Launchable)it.next();
                if(launch.getUrl().equalsIgnoreCase(url))
                {
                    li = launch.getLaunchItem();
                    break;
                }
            }

            if(li!=null)
            {
                // Add the subject.
                //
                System.out.print("Subject: ");
                String line = null;
                try
                {
                    line = reader.readLine().trim();
                }
                catch(Exception e)