Package process

Source Code of process.Transition

/*
* This file is part of the WfMOpen project.
* Copyright (C) 2001-2003 Danet GmbH (www.danet.de), GS-AN.
* All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*
* $Id: Transition.java 2326 2007-03-27 21:59:44Z mlipp $
*
* $Log$
* Revision 1.3  2006/09/29 12:32:07  drmlipp
* Consistently using WfMOpen as projct name now.
*
* Revision 1.2  2004/09/10 11:53:15  drmlipp
* Made tests undividually runnable.
*
* Revision 1.1.1.2  2003/12/19 13:01:43  drmlipp
* Updated to 1.1rc1
*
* Revision 1.21  2003/10/21 21:00:45  lipp
* Moved EJBClientTest to new junit sub-package.
*
* Revision 1.20  2003/10/08 12:39:40  huaiyang
* make test weblogic compatible.
*
* Revision 1.19  2003/09/19 15:01:34  schlue
* Initial deadline test added (not working yet).
*
* Revision 1.18  2003/09/19 13:12:29  lipp
* Adapted to closed.completed having a substate.
*
* Revision 1.17  2003/06/29 18:41:19  lipp
* Minor fixes.
*
* Revision 1.16  2003/06/27 09:44:03  lipp
* Fixed copyright/license information.
*
* Revision 1.15  2003/06/03 14:50:12  schlue
* Test case for AND split with OTHERWISE condition added.
*
* Revision 1.14  2003/06/03 11:58:27  schlue
* PR56 fixed.
*
* Revision 1.13  2003/06/02 13:27:16  lipp
* Fixed PR35 (user error).
*
* Revision 1.12  2003/05/31 18:30:32  lipp
* Fixed test case.
*
* Revision 1.11  2003/05/16 14:13:12  schlue
* Cascade completed (still not running as intended)
*
* Revision 1.10  2003/05/16 10:45:55  schlue
* Loop test updated (still not running correctly)
*
* Revision 1.9  2003/05/15 11:23:42  schlue
* Added initial cascade test (still incomplete).
*
* Revision 1.8  2003/05/15 07:36:01  schlue
* Added first loop test.
*
* Revision 1.7  2003/05/14 12:02:26  schlue
* Import of process descriptions changed due to modified import behaviour.
*
* Revision 1.6  2003/05/08 10:50:28  schlue
* Initial subflow tests added.
*
* Revision 1.5  2003/05/05 14:39:50  lipp
* Moved code for removing process automatically to event handling.
*
* Revision 1.4  2003/04/17 14:13:28  schlue
* More complex transition test added.
*
* Revision 1.3  2003/04/16 19:58:49  lipp
* Adapted to jdk 1.4
*
* Revision 1.2  2003/04/16 14:06:50  schlue
* Transition path test added.
*
* Revision 1.1  2003/04/16 09:43:32  schlue
* Test cases for transition added.
*
*
*/
package process;

import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;

import java.util.Iterator;
import java.util.List;

import java.rmi.RemoteException;

import de.danet.an.util.junit.EJBClientTest;

import de.danet.an.workflow.omgcore.ProcessData;
import de.danet.an.workflow.omgcore.WfProcess;
import de.danet.an.workflow.omgcore.WfRequester;

import de.danet.an.workflow.api.Activity;
import de.danet.an.workflow.api.DefaultRequester;
import de.danet.an.workflow.api.ImportException;
import de.danet.an.workflow.api.InvalidKeyException;
import de.danet.an.workflow.api.PrioritizedMessage;
import de.danet.an.workflow.api.ProcessDefinitionDirectory;
import de.danet.an.workflow.api.ProcessDirectory;
import de.danet.an.workflow.api.ProcessMgr;
import de.danet.an.workflow.api.WorkflowService;
import de.danet.an.workflow.api.WorkflowServiceFactory;

import junit.framework.Test;
import junit.framework.TestResult;
import junit.framework.TestSuite;

/**
* Test subject area of "transition" of processes.
* This includes conditions, complex split and join transition conditions,
* return values, etc.
* After completion, all previously created processes and process definitions
* are removed.
* @author <a href="mailto:schlueter@danet.de">Holger Schlueter</a>
* @version 1.0
*/
public class Transition extends WfMOpenTestCase {
    /**
     * Access to process definition directory (singleton)
     */
    private ProcessDefinitionDirectory defDir = null;

    /**
     * Access to process directory (singleton)
     */
    private ProcessDirectory procDir = null;

    /**
     * Access to default requester (singleton)
     */
    private WfRequester requester = null;

    /**
     * Constructor of this TestCase
     * @param name a <code>String</code> value
     */
    public Transition(String name) {
  super (name);
    }

    /**
     * Construct this test suite.
     * @return a <code>Test</code> value
     */
    public static Test suite() {
        TestSuite suite = new TestSuite();
   suite.addTest(new Transition("testRun"));
     suite.addTest(new Transition("testPath"));
     suite.addTest(new Transition("testLoop"));
     suite.addTest(new Transition("testCascade"));
     suite.addTest(new Transition("testScrabble"));
     suite.addTest(new Transition("testAndSplitOtherwise"));
        return suite;
    }

    /**
     * Runs the tests with an appropriate login context.
     *
     * @param testResult a <code>TestResult</code> value
     */
    public void run(final TestResult testResult) {
  EJBClientTest.run (new Runnable () {
    public void run () {
        Transition.super.run (testResult);
    }
      }, plc, testResult);
    }

    /**
     * Test creating a process, passing through and (automatically) removing.
     * @exception Exception if an error occurs
     */
    public void testRun() throws Exception {
  List msgList = importProcessDefinition("/process/minimal.xml");
  ProcessMgr mgr = defDir.processMgr("SystemTest", "stopOnStart");
  WfProcess proc = mgr.createProcess(requester);
  String procKey = proc.key();
  proc.start();
  assertTrue(stateReached(proc, "open.running.running",
        "open.not_running.suspended.suspended"));
  Activity act = (Activity)proc.steps().toArray()[0];
  act.resume();
  assertTrue(stateReached(proc, "closed.completed",
        "closed.completed"));
  // Assure that process has to be removed manually
  assertTrue(mgr.processByKey(procKey) != null);
  procDir.removeProcess(proc);
  boolean processRemoved = false;
  try {
      mgr.processByKey(procKey);
  } catch (InvalidKeyException exc) {
      processRemoved = true;
  }
  assertTrue(processRemoved);
 
  mgr = defDir.processMgr("SystemTest", "stopOnFinish");
  proc = mgr.createProcess(requester);
  procKey = proc.key();
  proc.start();
  assertTrue(stateReached(proc, "open.running.running",
        "open.not_running.suspended.suspended"));
  act = (Activity)proc.steps().toArray()[0];
  act.resume();
  assertTrue(stateReached(proc, "closed.completed",
        "closed.completed"));
  // Assure that process has to be removed manually
  assertTrue(mgr.processByKey(procKey) != null);
  procDir.removeProcess(proc);
  processRemoved = false;
  try {
      mgr.processByKey(procKey);
  } catch (InvalidKeyException exc) {
      processRemoved = true;
  }
  assertTrue(processRemoved);

  mgr = defDir.processMgr("SystemTest", "completeNoRemoval");
  proc = mgr.createProcess(requester);
  procKey = proc.key();
  proc.start();
  assertTrue(stateReached(proc, "closed.completed",
        "closed.completed"));
  // Assure that process has to be removed manually
  assertTrue(mgr.processByKey(procKey) != null);
  procDir.removeProcess(proc);
  processRemoved = false;
  try {
      mgr.processByKey(procKey);
  } catch (InvalidKeyException exc) {
      processRemoved = true;
  }
  assertTrue(processRemoved);

  mgr = defDir.processMgr("SystemTest", "completeRemoval");
  proc = mgr.createProcess(requester);
  procKey = proc.key();
  proc.start();
  // Assure that process has been removed automatically
  processRemoved = false;
  int maxRetries = 5;
  boolean test = true;
  while (test){
      if (maxRetries-- > 0) {
    try {
        mgr.processByKey(procKey);
        Thread.sleep(1000);
    } catch (InvalidKeyException exc) {
        processRemoved = true;
        test = false;
    }
      } else {
    test = false;
      }
  } 
  assertTrue(processRemoved);
  // Imported process definitions will be removed automatically by import
  // within  next test case!
    }

    /**
     * Test the transition path when executing processes.
     * @exception Exception if an error occurs
     */
    public void testPath() throws Exception {
  List msgList = importProcessDefinition("/process/transition1.xml");
  ProcessMgr mgr = defDir.processMgr("SystemTest", "simplePath");
  WfProcess proc = mgr.createProcess(requester);
  proc.start();
  // Wait for completion
  assertTrue(stateReached(proc, "closed.completed",
        "closed.completed"));
  ProcessData data = proc.processContext();
  assertTrue(((String)data.get("TransitionPath"))
       .equals("PATH:act1:act2:act3"));
  procDir.removeProcess(proc);

  mgr = defDir.processMgr("SystemTest", "block_2_in_2_out");
  proc = mgr.createProcess(requester);
  proc.start();
  // Wait for completion
  assertTrue("Process not completed in time",
       stateReached(proc, "closed.completed",
        "closed.completed"));
  data = proc.processContext();
  assertTrue(((String)data.get("ConfirmA3")).equals("OK"));
  assertTrue(((String)data.get("ConfirmA4")).equals("OK"));
  procDir.removeProcess(proc);
  defDir.removeProcessDefinition("SystemTest", "simplePath")
  defDir.removeProcessDefinition("SystemTest", "block_2_in_2_out")
    }

    /**
     * Test conditional looping within a process.
     * @exception Exception if an error occurs
     */
    public void testLoop() throws Exception {
  StringBuffer processDefinition = new StringBuffer();
  // Read correct process definition
  InputStream is = getClass()
            .getResourceAsStream("/process/loopNoStart.xml");
  BufferedReader in = new BufferedReader
      (new InputStreamReader(is, "ISO-8859-1"));
  String line = null;
  while ((line = in.readLine())!= null) {
      processDefinition.append(line+"\n");
  }
  try {
      List msg = defDir.importProcessDefinitions(processDefinition.toString());
      assertTrue(msg.size() == 1);
      assertTrue(((PrioritizedMessage)msg.get(0)).priority()
           .equals(PrioritizedMessage.Priority.WARN));
      assertTrue(((PrioritizedMessage)msg.get(0)).unmappedMessage()
           .equals("ImportMessages#procdef.transition.noentry"));
  } catch (ImportException exc) {
      Iterator msg = exc.messages().iterator();
      while (msg.hasNext()) {
    System.out.println(((PrioritizedMessage)msg.next()).unmappedMessage());
      }
  }

  List msgList = importProcessDefinition("/process/loop.xml");
  assertTrue(msgList.size() == 0);
  ProcessMgr mgr = defDir.processMgr("SystemTest", "loop_3_times");
  WfProcess proc = mgr.createProcess(requester);
  proc.start();
  // Wait for completion
  assertTrue(stateReached(proc, "closed.completed"));
  ProcessData data = proc.processContext();
  assertTrue(((Long)data.get("Counter")).intValue() == 3);
  procDir.removeProcess(proc);
  defDir.removeProcessDefinition("SystemTest", "loop_3_times")
    }


    /**
     * Test conditions by use of a cascading process.
     * @exception Exception if an error occurs
     */
    public void testCascade() throws Exception {
  // Uses XPDL imported by testLoop
  ProcessMgr mgr = defDir.processMgr("SystemTest", "cascade");
  WfProcess proc = mgr.createProcess(requester);
  proc.start();
  // Wait for completion
  assertTrue(stateReached(proc, "closed.completed"));
  ProcessData data = proc.processContext();
  assertTrue(((Boolean)data.get("completed"))
       .equals(Boolean.TRUE));
  procDir.removeProcess(proc);
  defDir.removeProcessDefinition("SystemTest", "cascade")
    }

    /**
     * Test conditions by use of a cascading process.
     * @exception Exception if an error occurs
     */
    public void testScrabble() throws Exception {
  // Uses XPDL imported by testLoop
  ProcessMgr mgr = defDir.processMgr("SystemTest", "scrabble");
  WfProcess proc = mgr.createProcess(requester);
  proc.start();
  // Wait for completion
  assertTrue(stateReached(proc, "closed.completed"));
  ProcessData data = proc.processContext();
  assertTrue(((String)data.get("compound")).equals("DANET"));
  procDir.removeProcess(proc);
  defDir.removeProcessDefinition("SystemTest", "cascade")
    }

    /**
     * Test correct handling of OTHERWISE case within an AND split.
     * @exception Exception if an error occurs
     */
    public void testAndSplitOtherwise() throws Exception {
  // Uses XPDL imported by testLoop
  ProcessMgr mgr = defDir.processMgr("SystemTest", "andOtherwiseTest");
  WfProcess proc = mgr.createProcess(requester);
  proc.start();
  // Wait for completion
  assertTrue(stateReached(proc, "closed.completed"));
  ProcessData data = proc.processContext();
  assertTrue(((Boolean)data.get("Success")).equals(Boolean.TRUE));
  assertTrue(((Boolean)data.get("Error")).equals(Boolean.FALSE));
  procDir.removeProcess(proc);
  defDir.removeProcessDefinition("SystemTest", "andOtherwiseTest")
    }

    /**
     * Initialisation.
     * The <code>setUp</code> method defines the way a state change is
     * realized. Override this method to change this way.
     * @exception Exception if an error occurs
     */
    protected void setUp() throws Exception {
  super.setUp();
  WorkflowService wfs = WorkflowServiceFactory.newInstance()
      .newWorkflowService();
  try {
      defDir = wfs.processDefinitionDirectory();
  } catch(RemoteException exc) {
      System.err.println("Process definition directory not accessible: "
             + exc.getMessage());
      System.exit(-1);
  }

  procDir = wfs.processDirectory();
  requester = new DefaultRequester(wfs);
    }

    private List importProcessDefinition(String name) throws Exception {
  StringBuffer processDefinition = new StringBuffer();
  List msgList = null;
  InputStream is = getClass().getResourceAsStream(name);
  BufferedReader in = new BufferedReader
      (new InputStreamReader(is, "ISO-8859-1"));
  String line = null;
  while ((line = in.readLine())!= null) {
      processDefinition.append(line+"\n");
  }
  try {msgList = defDir.importProcessDefinitions(processDefinition.toString());
  } catch (ImportException exc) {
      msgList = exc.messages();
      Iterator msg = msgList.iterator();
      while (msg.hasNext()) {
    System.out.println(((PrioritizedMessage)msg.next())
           .message());
      }
  } 
  return msgList;
    }

    private boolean stateReached(WfProcess proc,
         String procState)
    throws Exception {
  boolean test = true;
  boolean stateReached = false;
  int maxRetries = 100;
  while (test){
      if (maxRetries-- > 0) {
    if (proc.state().startsWith(procState)) {
        stateReached = true;
        test = false;
    } else {
        Thread.sleep(1000);
    }
      } else {
    test = false;
      }
  } 
  return stateReached;
    }

    private boolean stateReached(WfProcess proc,
         String procState,
         String actState)
    throws Exception {
  Activity act = (Activity)proc.steps().toArray()[0];
  boolean test = true;
  boolean stateReached = false;
  int maxRetries = 10;
  while (test){
      if (maxRetries-- > 0) {
    if (proc.state().startsWith(procState)
        && act.state().startsWith(actState)) {
        stateReached = true;
        test = false;
    } else {
        Thread.sleep(1000);
    }
      } else {
    test = false;
      }
  } 
  return stateReached;
    }
}
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