Java tutorial
/* * JBoss, Home of Professional Open Source * 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.taskmgmt.exe; import java.util.HashMap; import java.util.Map; import org.hibernate.Hibernate; import org.hibernate.criterion.Restrictions; import org.jbpm.context.exe.ContextInstance; import org.jbpm.db.AbstractDbTestCase; import org.jbpm.graph.def.ActionHandler; import org.jbpm.graph.def.ProcessDefinition; import org.jbpm.graph.exe.ExecutionContext; import org.jbpm.graph.exe.ProcessInstance; import org.jbpm.graph.node.TaskNode; import org.jbpm.taskmgmt.def.Task; public class TaskVariablesDbTest extends AbstractDbTestCase { public void testDefaultVariablePersistence() { ProcessDefinition processDefinition = ProcessDefinition.createNewProcessDefinition(); processDefinition.setName("default variable persistence"); deployProcessDefinition(processDefinition); ProcessInstance processInstance = new ProcessInstance(processDefinition); TaskInstance taskInstance = processInstance.getTaskMgmtInstance() .createTaskInstance(processInstance.getRootToken()); taskInstance.setVariable("key", "value"); taskInstance = saveAndReload(taskInstance); assertNotNull(taskInstance); assertEquals("value", taskInstance.getVariable("key")); } public void testSetOnTaskInstanceGetOnProcess() { ProcessDefinition processDefinition = ProcessDefinition .parseXmlString("<process-definition name='set on task get on process'>" + " <start-state>" + " <transition to='t' />" + " </start-state>" + " <task-node name='t'>" + " <task name='vartask' />" + " </task-node>" + "</process-definition>"); deployProcessDefinition(processDefinition); ProcessInstance processInstance = new ProcessInstance(processDefinition); processInstance.signal(); processInstance = saveAndReload(processInstance); ContextInstance contextInstance = processInstance.getContextInstance(); TaskInstance taskInstance = (TaskInstance) processInstance.getTaskMgmtInstance().getTaskInstances() .iterator().next(); Map expectedVariables = new HashMap(); assertEquals(expectedVariables, taskInstance.getVariables()); assertFalse(taskInstance.hasVariable("a")); assertNull(taskInstance.getVariable("a")); assertNull(contextInstance.getVariable("a")); taskInstance.setVariable("a", "1"); taskInstance = saveAndReload(taskInstance); contextInstance = taskInstance.getContextInstance(); expectedVariables.put("a", "1"); assertEquals(expectedVariables, taskInstance.getVariables()); assertTrue(taskInstance.hasVariable("a")); assertEquals("1", taskInstance.getVariable("a")); assertEquals("1", contextInstance.getVariable("a")); } public void testSetOnProcessGetOnTaskInstance() { ProcessDefinition processDefinition = ProcessDefinition .parseXmlString("<process-definition name='set on process get on task'>" + " <start-state>" + " <transition to='t' />" + " </start-state>" + " <task-node name='t'>" + " <task name='vartask' />" + " </task-node>" + "</process-definition>"); deployProcessDefinition(processDefinition); ProcessInstance processInstance = new ProcessInstance(processDefinition); processInstance.signal(); processInstance = saveAndReload(processInstance); ContextInstance contextInstance = processInstance.getContextInstance(); contextInstance.setVariable("a", "1"); TaskInstance taskInstance = (TaskInstance) processInstance.getTaskMgmtInstance().getTaskInstances() .iterator().next(); taskInstance = saveAndReload(taskInstance); Map expectedVariables = new HashMap(); expectedVariables.put("a", "1"); assertEquals(expectedVariables, taskInstance.getVariables()); taskInstance = saveAndReload(taskInstance); contextInstance = taskInstance.getContextInstance(); assertTrue(taskInstance.hasVariable("a")); assertEquals("1", taskInstance.getVariable("a")); assertEquals("1", contextInstance.getVariable("a")); } public void testSetLocally() { ProcessDefinition processDefinition = ProcessDefinition .parseXmlString("<process-definition name='set locally'>" + " <start-state>" + " <transition to='t' />" + " </start-state>" + " <task-node name='t'>" + " <task name='vartask' />" + " </task-node>" + "</process-definition>"); deployProcessDefinition(processDefinition); ProcessInstance processInstance = new ProcessInstance(processDefinition); processInstance.signal(); TaskInstance taskInstance = (TaskInstance) processInstance.getTaskMgmtInstance().getTaskInstances() .iterator().next(); taskInstance = saveAndReload(taskInstance); ContextInstance contextInstance = taskInstance.getContextInstance(); Map expectedVariables = new HashMap(); assertEquals(expectedVariables, taskInstance.getVariables()); assertFalse(taskInstance.hasVariable("a")); assertNull(taskInstance.getVariable("a")); assertNull(contextInstance.getVariable("a")); taskInstance.setVariableLocally("a", "1"); taskInstance = saveAndReload(taskInstance); contextInstance = taskInstance.getContextInstance(); expectedVariables.put("a", "1"); assertEquals(expectedVariables, taskInstance.getVariables()); assertTrue(taskInstance.hasVariable("a")); assertEquals("1", taskInstance.getVariable("a")); assertNull(contextInstance.getVariable("a")); } public void testCopyWithController() { ProcessDefinition processDefinition = ProcessDefinition.parseXmlString( "<process-definition name='copy with controller'>" + " <start-state>" + " <transition to='t' />" + " </start-state>" + " <task-node name='t'>" + " <task name='vartask'>" + " <controller>" + " <variable name='a' />" + " <variable name='b' />" + " </controller>" + " </task>" + " </task-node>" + "</process-definition>"); deployProcessDefinition(processDefinition); ProcessInstance processInstance = new ProcessInstance(processDefinition); ContextInstance contextInstance = processInstance.getContextInstance(); contextInstance.setVariable("a", "1"); contextInstance.setVariable("b", "2"); contextInstance.setVariable("c", "3"); processInstance.signal(); TaskInstance taskInstance = (TaskInstance) processInstance.getTaskMgmtInstance().getTaskInstances() .iterator().next(); taskInstance = saveAndReload(taskInstance); Map expectedVariables = new HashMap(); expectedVariables.put("a", "1"); expectedVariables.put("b", "2"); expectedVariables.put("c", "3"); assertEquals(expectedVariables, taskInstance.getVariables()); taskInstance.setVariable("a", "1 modified"); taskInstance.setVariable("b", "2 modified"); taskInstance.setVariable("c", "3 modified"); taskInstance = saveAndReload(taskInstance); expectedVariables.clear(); expectedVariables.put("a", "1 modified"); expectedVariables.put("b", "2 modified"); expectedVariables.put("c", "3 modified"); assertEquals(expectedVariables, taskInstance.getVariables()); taskInstance = saveAndReload(taskInstance); contextInstance = taskInstance.getContextInstance(); expectedVariables.clear(); expectedVariables.put("a", "1"); // task instance had local copy for var a expectedVariables.put("b", "2"); // task instance had local copy for var b expectedVariables.put("c", "3 modified"); assertEquals(expectedVariables, contextInstance.getVariables()); } public void testOverwriteNullValue() { ProcessDefinition processDefinition = ProcessDefinition .parseXmlString("<process-definition name='overwrite-null-value'>" + " <start-state>" + " <transition to='t' />" + " </start-state>" + " <task-node name='t'>" + " <task name='vartask'>" + " <controller>" + " <variable name='v' />" + " </controller>" + " </task>" + " </task-node>" + "</process-definition>"); deployProcessDefinition(processDefinition); ProcessInstance processInstance = new ProcessInstance(processDefinition); processInstance.signal(); processInstance = saveAndReload(processInstance); TaskInstance taskInstance = (TaskInstance) processInstance.getTaskMgmtInstance().getTaskInstances() .iterator().next(); assertNull(taskInstance.getVariable("v")); taskInstance.setVariable("v", "facelets is great"); taskInstance = saveAndReload(taskInstance); assertEquals("facelets is great", taskInstance.getVariable("v")); } public void testNewTaskInstanceVariablesWithoutController() { ProcessDefinition processDefinition = ProcessDefinition .parseXmlString("<process-definition name='task variables without controller'>" + " <start-state>" + " <transition to='t' />" + " </start-state>" + " <task-node name='t'>" + " <task name='vartask' />" + " <transition to='u' />" + " </task-node>" + " <state name='u' />" + "</process-definition>"); deployProcessDefinition(processDefinition); ProcessInstance processInstance = new ProcessInstance(processDefinition); processInstance.signal(); TaskInstance taskInstance = (TaskInstance) processInstance.getTaskMgmtInstance().getTaskInstances() .iterator().next(); taskInstance.setVariableLocally("a", "value-a"); taskInstance.setVariableLocally("b", "value-b"); taskInstance = saveAndReload(taskInstance); ContextInstance contextInstance = taskInstance.getContextInstance(); assertFalse(contextInstance.hasVariable("a")); assertFalse(contextInstance.hasVariable("b")); assertEquals("value-a", taskInstance.getVariable("a")); assertEquals("value-b", taskInstance.getVariable("b")); taskInstance.end(); assertEquals("value-a", contextInstance.getVariable("a")); assertEquals("value-b", contextInstance.getVariable("b")); taskInstance = saveAndReload(taskInstance); contextInstance = taskInstance.getContextInstance(); assertEquals("value-a", contextInstance.getVariable("a")); assertEquals("value-b", contextInstance.getVariable("b")); } public void testTaskVariableQuery() { ProcessDefinition processDefinition = ProcessDefinition .parseXmlString("<process-definition name='task-variable-query'>" + " <start-state>" + " <transition to='t' />" + " </start-state>" + " <task-node name='t' create-tasks='no'>" + " <event type='node-enter'>" + " <action class='" + CreateTasksAction.class.getName() + "'/>" + " </event>" + " <task name='vartask'>" + " <assignment actor-id='me' />" + " </task>" + " </task-node>" + "</process-definition>"); deployProcessDefinition(processDefinition); ProcessInstance processInstance = new ProcessInstance(processDefinition); processInstance.signal(); newTransaction(); assertEquals(5, jbpmContext.getTaskList("me").size()); newTransaction(); TaskInstance task = getTask("index", 3, "me"); assertEquals(3, ((Long) task.getVariable("index")).longValue()); } private TaskInstance getTask(String variableName, long variableValue, String actorId) { return (TaskInstance) jbpmContext.getSession().createCriteria(TaskInstance.class) .add(Restrictions.eq("actorId", actorId)).createCriteria("variableInstances") .add(Restrictions.eq("name", variableName)) .add(Restrictions.sqlRestriction("{alias}.LONGVALUE_ = ?", new Long(variableValue), Hibernate.LONG)) .uniqueResult(); } public static final class CreateTasksAction implements ActionHandler { private static final long serialVersionUID = 1L; public void execute(ExecutionContext executionContext) throws Exception { TaskNode taskNode = (TaskNode) executionContext.getNode(); Task task = taskNode.getTask("vartask"); TaskMgmtInstance taskMgmtInstance = executionContext.getTaskMgmtInstance(); for (int index = 0; index < 5; index++) { TaskInstance ti = taskMgmtInstance.createTaskInstance(task, executionContext); ti.setVariableLocally("index", new Long(index)); } } } }