PvmParallelTest.java

/* Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.activiti.engine.test.pvm;

import java.util.ArrayList;
import java.util.List;

import org.activiti.engine.impl.pvm.ProcessDefinitionBuilder;
import org.activiti.engine.impl.pvm.PvmExecution;
import org.activiti.engine.impl.pvm.PvmProcessDefinition;
import org.activiti.engine.impl.pvm.PvmProcessInstance;
import org.activiti.engine.impl.test.PvmTestCase;
import org.activiti.engine.test.pvm.activities.Automatic;
import org.activiti.engine.test.pvm.activities.End;
import org.activiti.engine.test.pvm.activities.ParallelGateway;
import org.activiti.engine.test.pvm.activities.WaitState;



/**
 * @author Tom Baeyens
 */
public class PvmParallelTest extends PvmTestCase {

  public void testSimpleAutmaticConcurrency() {
    PvmProcessDefinition processDefinition = new ProcessDefinitionBuilder()
      .createActivity("start")
        .initial()
        .behavior(new Automatic())
        .transition("fork")
      .endActivity()
      .createActivity("fork")
        .behavior(new ParallelGateway())
        .transition("c1")
        .transition("c2")
      .endActivity()
      .createActivity("c1")
        .behavior(new Automatic())
        .transition("join")
      .endActivity()
      .createActivity("c2")
        .behavior(new Automatic())
        .transition("join")
      .endActivity()
      .createActivity("join")
        .behavior(new ParallelGateway())
        .transition("end")
      .endActivity()
      .createActivity("end")
        .behavior(new End())
      .endActivity()
    .buildProcessDefinition();
    
    PvmProcessInstance processInstance = processDefinition.createProcessInstance(); 
    processInstance.start();
    
    assertTrue(processInstance.isEnded());
  }

  public void testSimpleWaitStateConcurrency() {
    PvmProcessDefinition processDefinition = new ProcessDefinitionBuilder()
      .createActivity("start")
        .initial()
        .behavior(new Automatic())
        .transition("fork")
      .endActivity()
      .createActivity("fork")
        .behavior(new ParallelGateway())
        .transition("c1")
        .transition("c2")
      .endActivity()
      .createActivity("c1")
        .behavior(new WaitState())
        .transition("join")
      .endActivity()
      .createActivity("c2")
        .behavior(new WaitState())
        .transition("join")
      .endActivity()
      .createActivity("join")
        .behavior(new ParallelGateway())
        .transition("end")
      .endActivity()
      .createActivity("end")
        .behavior(new WaitState())
      .endActivity()
    .buildProcessDefinition();
    
    PvmProcessInstance processInstance = processDefinition.createProcessInstance(); 
    processInstance.start();
    
    PvmExecution activityInstanceC1 = processInstance.findExecution("c1");
    assertNotNull(activityInstanceC1);
    
    PvmExecution activityInstanceC2 = processInstance.findExecution("c2");
    assertNotNull(activityInstanceC2);
    
    activityInstanceC1.signal(null, null);
    activityInstanceC2.signal(null, null);
    
    List<String> activityNames = processInstance.findActiveActivityIds();
    List<String> expectedActivityNames = new ArrayList<String>();
    expectedActivityNames.add("end");
    
    assertEquals(expectedActivityNames, activityNames);
  }

  public void testUnstructuredConcurrencyTwoJoins() {
    PvmProcessDefinition processDefinition = new ProcessDefinitionBuilder()
      .createActivity("start")
        .initial()
        .behavior(new Automatic())
        .transition("fork")
      .endActivity()
      .createActivity("fork")
        .behavior(new ParallelGateway())
        .transition("c1")
        .transition("c2")
        .transition("c3")
      .endActivity()
      .createActivity("c1")
        .behavior(new Automatic())
        .transition("join1")
      .endActivity()
      .createActivity("c2")
        .behavior(new Automatic())
        .transition("join1")
      .endActivity()
      .createActivity("c3")
        .behavior(new Automatic())
        .transition("join2")
      .endActivity()
      .createActivity("join1")
        .behavior(new ParallelGateway())
        .transition("c4")
      .endActivity()
      .createActivity("c4")
        .behavior(new Automatic())
        .transition("join2")
      .endActivity()
      .createActivity("join2")
        .behavior(new ParallelGateway())
        .transition("end")
      .endActivity()
      .createActivity("end")
        .behavior(new WaitState())
      .endActivity()
    .buildProcessDefinition();
    
    PvmProcessInstance processInstance = processDefinition.createProcessInstance(); 
    processInstance.start();
    
    assertNotNull(processInstance.findExecution("end"));
  }

  public void testUnstructuredConcurrencyTwoForks() {
    PvmProcessDefinition processDefinition = new ProcessDefinitionBuilder()
      .createActivity("start")
        .initial()
        .behavior(new Automatic())
        .transition("fork1")
      .endActivity()
      .createActivity("fork1")
        .behavior(new ParallelGateway())
        .transition("c1")
        .transition("c2")
        .transition("fork2")
      .endActivity()
      .createActivity("c1")
        .behavior(new Automatic())
        .transition("join")
      .endActivity()
      .createActivity("c2")
        .behavior(new Automatic())
        .transition("join")
      .endActivity()
      .createActivity("fork2")
        .behavior(new ParallelGateway())
        .transition("c3")
        .transition("c4")
      .endActivity()
      .createActivity("c3")
        .behavior(new Automatic())
        .transition("join")
      .endActivity()
      .createActivity("c4")
        .behavior(new Automatic())
        .transition("join")
      .endActivity()
      .createActivity("join")
        .behavior(new ParallelGateway())
        .transition("end")
      .endActivity()
      .createActivity("end")
        .behavior(new WaitState())
      .endActivity()
    .buildProcessDefinition();
    
    PvmProcessInstance processInstance = processDefinition.createProcessInstance(); 
    processInstance.start();
    
    assertNotNull(processInstance.findExecution("end"));
  }

  public void testJoinForkCombinedInOneParallelGateway() {
    PvmProcessDefinition processDefinition = new ProcessDefinitionBuilder()
      .createActivity("start")
        .initial()
        .behavior(new Automatic())
        .transition("fork")
      .endActivity()
      .createActivity("fork")
        .behavior(new ParallelGateway())
        .transition("c1")
        .transition("c2")
        .transition("c3")
      .endActivity()
      .createActivity("c1")
        .behavior(new Automatic())
        .transition("join1")
      .endActivity()
      .createActivity("c2")
        .behavior(new Automatic())
        .transition("join1")
      .endActivity()
      .createActivity("c3")
        .behavior(new Automatic())
        .transition("join2")
      .endActivity()
      .createActivity("join1")
        .behavior(new ParallelGateway())
        .transition("c4")
        .transition("c5")
        .transition("c6")
      .endActivity()
      .createActivity("c4")
        .behavior(new Automatic())
        .transition("join2")
      .endActivity()
      .createActivity("c5")
        .behavior(new Automatic())
        .transition("join2")
      .endActivity()
      .createActivity("c6")
        .behavior(new Automatic())
        .transition("join2")
      .endActivity()
      .createActivity("join2")
        .behavior(new ParallelGateway())
        .transition("end")
      .endActivity()
      .createActivity("end")
        .behavior(new WaitState())
      .endActivity()
    .buildProcessDefinition();
    
    PvmProcessInstance processInstance = processDefinition.createProcessInstance(); 
    processInstance.start();
    
    assertNotNull(processInstance.findExecution("end"));
  }
}