jpdldbtest.java

jBpm是一个灵活可扩展的工作流管理系统。作为jBpm运行时server输入的业务流程使用简单强大的语言表达并打包在流程档案中

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 * 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.graph.node;

import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;

import org.jbpm.db.AbstractDbTestCase;
import org.jbpm.graph.action.Script;
import org.jbpm.graph.def.ProcessDefinition;
import org.jbpm.graph.exe.ExecutionContext;
import org.jbpm.graph.node.Decision;
import org.jbpm.graph.node.DecisionCondition;
import org.jbpm.graph.node.DecisionHandler;
import org.jbpm.graph.node.Fork;
import org.jbpm.graph.node.Join;
import org.jbpm.graph.node.State;
import org.jbpm.graph.node.TaskNode;
import org.jbpm.instantiation.Delegation;
import org.jbpm.taskmgmt.def.Task;

public class JpdlDbTest extends AbstractDbTestCase {
  
  public void testDecision(){
    ProcessDefinition processDefinition = ProcessDefinition.parseXmlString(
      "<process-definition>" +
      "  <decision name='d'>" +
      "    <transition name='one' to='d'>" +
      "      <condition>a == 1</condition>" +
      "    </transition>" +
      "    <transition name='two' to='d'>" +
      "      <condition>a == 2</condition>" +
      "    </transition>" +
      "    <transition name='three' to='d'>" +
      "      <condition>a == 3</condition>" +
      "    </transition>" +
      "  </decision>" +
      "</process-definition>");
    
    processDefinition = saveAndReload(processDefinition);
    
    Decision decision = (Decision) processDefinition.getNode("d");
    DecisionCondition decisionCondition = (DecisionCondition) decision.decisionConditions.get(0);
    assertEquals("one", decisionCondition.transitionName);
    assertEquals("a == 1", decisionCondition.expression);
    
    decisionCondition = (DecisionCondition) decision.decisionConditions.get(1);
    assertEquals("two", decisionCondition.transitionName);
    assertEquals("a == 2", decisionCondition.expression);
    
    decisionCondition = (DecisionCondition) decision.decisionConditions.get(2);
    assertEquals("three", decisionCondition.transitionName);
    assertEquals("a == 3", decisionCondition.expression);
  }
  
  public static class MyDecisionHandler implements DecisionHandler {
    private static final long serialVersionUID = 1L;
    String decisionHandlerConfigText = null;
    public String decide(ExecutionContext executionContext) throws Exception {
      return "two";
    }
  }

  public void testDecisionDelegation(){
    ProcessDefinition processDefinition = ProcessDefinition.parseXmlString(
      "<process-definition>" +
      "  <decision name='d' >" +
      "    <handler class='org.jbpm.graph.node.JpdlDbTest$MyDecisionHandler' >" +
      "      <decisionHandlerConfigText>testing... one, two... testing</decisionHandlerConfigText>" +
      "    </handler>" +
      "    <transition name='one' to='d'/>" +
      "    <transition name='two' to='d'/>" +
      "    <transition name='three' to='d'/>" +
      "  </decision>" +
      "</process-definition>");
    
    processDefinition = saveAndReload(processDefinition);
    
    Decision decision = (Decision) processDefinition.getNode("d");
    Delegation decisionDelegation = decision.decisionDelegation;
    assertNotNull(decisionDelegation);
    assertEquals("org.jbpm.graph.node.JpdlDbTest$MyDecisionHandler", decisionDelegation.getClassName());
    MyDecisionHandler decisionHandler = (MyDecisionHandler) decisionDelegation.instantiate();
    assertEquals("testing... one, two... testing", decisionHandler.decisionHandlerConfigText);
  }

  public void testFork() {
    ProcessDefinition processDefinition = ProcessDefinition.parseXmlString(
      "<process-definition>" +
      "  <fork name='f' />" +
      "</process-definition>");
    
    processDefinition = saveAndReload(processDefinition);
    
    Fork fork = (Fork) processDefinition.getNode("f");
    assertNotNull(fork);
  }
  
  public void testJoin() {
    ProcessDefinition processDefinition = ProcessDefinition.parseXmlString(
      "<process-definition>" +
      "  <join name='j' />" +
      "</process-definition>");
    
    processDefinition = saveAndReload(processDefinition);
    
    Join join = (Join) processDefinition.getNode("j");
    assertNotNull(join);
  }
  
  public void testScript() {
    ProcessDefinition processDefinition = ProcessDefinition.parseXmlString(
      "<process-definition>" +
      "  <script name='s'>" +
      "    <variable name='a' access='read' />" +
      "    <variable name='b' access='read-write' />" +
      "    <variable name='c' access='read-write' />" +
      "    <variable name='d' access='read-write-required' />" +
      "    <expression>e = m * Math.pow(c,2);</expression>" +
      "  </script>" +
      "</process-definition>");
    
    processDefinition = saveAndReload(processDefinition);
    
    Script script = (Script) processDefinition.getAction("s");
    assertNotNull(script);
    assertEquals(4, script.getVariableAccesses().size() ); 
    assertEquals("e = m * Math.pow(c,2);", script.getExpression() ); 
  }
  
  public void testState() {
    ProcessDefinition processDefinition = ProcessDefinition.parseXmlString(
      "<process-definition>" +
      "  <state name='s' />" +
      "</process-definition>");
    
    processDefinition = saveAndReload(processDefinition);
    
    State state = (State) processDefinition.getNode("s");
    assertNotNull(state);
  }
  
  public void testTaskNode() {
    ProcessDefinition processDefinition = ProcessDefinition.parseXmlString(
      "<process-definition>" +
      "  <task-node name='t' signal='first-wait' create-tasks='false'>" +
      "    <task name='change the world once' blocking='true'>" +
      "      <assignment class='anyonebutme' />" +
      "    </task>" +
      "    <task name='change the world twice' />" +
      "    <task name='change the world three times' />" +
      "  </task-node>" +
      "</process-definition>"
    );
    
    processDefinition = saveAndReload(processDefinition);
    
    TaskNode taskNode = (TaskNode) processDefinition.getNode("t");
    assertNotNull(taskNode);
    assertEquals("t", taskNode.getName());
    assertEquals(TaskNode.SIGNAL_FIRST_WAIT, taskNode.getSignal());
    assertFalse(taskNode.getCreateTasks());
    assertEquals(3, taskNode.getTasks().size());
    
    Map tasks = new HashMap();
    Iterator iter = taskNode.getTasks().iterator();
    while (iter.hasNext()) {
      Task task = (Task) iter.next();
      tasks.put(task.getName(), task);
    }
    Task task = (Task) tasks.get("change the world once");
    assertNotNull(task);
    assertSame(taskNode, task.getTaskNode());
    assertTrue(task.isBlocking());
    assertEquals("anyonebutme", task.getAssignmentDelegation().getClassName());
    
    task = (Task) tasks.get("change the world twice");
    assertNotNull(task);
    assertSame(taskNode, task.getTaskNode());
    assertFalse(task.isBlocking());

    assertTrue(tasks.containsKey("change the world three times") );
  }
}