/** Find Task Instances */
@SuppressWarnings("rawtypes")
public static List<TaskInstance> findTaskInstances(long processInstanceId)
throws WorkflowException {
log.debug("findTaskInstances({})", processInstanceId);
JbpmContext jbpmContext = JBPMUtils.getConfig().createJbpmContext();
ArrayList<TaskInstance> al = new ArrayList<TaskInstance>();
try {
GraphSession graphSession = jbpmContext.getGraphSession();
org.jbpm.graph.exe.ProcessInstance pi = graphSession.getProcessInstance(processInstanceId);
TaskMgmtInstance taskMgmtInstance = pi.getTaskMgmtInstance();
if (taskMgmtInstance.getTaskInstances() != null) {
for (Iterator it = taskMgmtInstance.getTaskInstances().iterator(); it.hasNext(); ) {
org.jbpm.taskmgmt.exe.TaskInstance ti = (org.jbpm.taskmgmt.exe.TaskInstance) it.next();
al.add(WorkflowUtils.copy(ti));
}
}
// Sort
Collections.sort(al);
} catch (JbpmException e) {
throw new WorkflowException(e.getMessage(), e);
} finally {
jbpmContext.close();
}
log.debug("findTaskInstances: {}", al);
return al;
}
/** Start Process Definition */
public static ProcessInstance runProcessDefinition(
String user, long processDefinitionId, String uuid, List<FormElement> variables)
throws WorkflowException {
log.debug(
"runProcessDefinition({}, {}, {}, {})",
new Object[] {user, processDefinitionId, uuid, variables});
JbpmContext jbpmContext = JBPMUtils.getConfig().createJbpmContext();
ProcessInstance vo = new ProcessInstance();
if (Config.SYSTEM_READONLY) {
throw new WorkflowException("System is in read-only mode");
}
try {
jbpmContext.setActorId(user);
GraphSession graphSession = jbpmContext.getGraphSession();
Map<String, Object> hm = new HashMap<String, Object>();
hm.put(Config.WORKFLOW_PROCESS_INSTANCE_VARIABLE_UUID, uuid);
for (FormElement fe : variables) {
hm.put(fe.getName(), fe);
}
org.jbpm.graph.def.ProcessDefinition pd =
graphSession.getProcessDefinition(processDefinitionId);
org.jbpm.graph.exe.ProcessInstance pi = pd.createProcessInstance(hm);
if (pi != null) {
org.jbpm.taskmgmt.exe.TaskMgmtInstance tmi = pi.getTaskMgmtInstance();
// http://community.jboss.org/thread/115182
if (tmi.getTaskMgmtDefinition().getStartTask() != null) {
org.jbpm.taskmgmt.exe.TaskInstance ti = tmi.createStartTaskInstance();
if (Config.WORKFLOW_START_TASK_AUTO_RUN) {
ti.start();
ti.end();
}
} else {
pi.getRootToken().signal();
}
jbpmContext.save(pi);
vo = WorkflowUtils.copy(pi);
}
} catch (JbpmException e) {
throw new WorkflowException(e.getMessage(), e);
} finally {
jbpmContext.close();
}
log.debug("runProcessDefinition: {}", vo);
return vo;
}
public Object resolveVariable(String name) throws ELException {
ExecutionContext executionContext = ExecutionContext.currentExecutionContext();
Object value = null;
if ("taskInstance".equals(name)) {
value = executionContext.getTaskInstance();
} else if ("processInstance".equals(name)) {
value = executionContext.getProcessInstance();
} else if ("processDefinition".equals(name)) {
value = executionContext.getProcessDefinition();
} else if ("token".equals(name)) {
value = executionContext.getToken();
} else if ("taskMgmtInstance".equals(name)) {
value = executionContext.getTaskMgmtInstance();
} else if ("contextInstance".equals(name)) {
value = executionContext.getContextInstance();
} else if ((executionContext.getTaskInstance() != null)
&& (executionContext.getTaskInstance().hasVariableLocally(name))) {
value = executionContext.getTaskInstance().getVariable(name);
} else {
ContextInstance contextInstance = executionContext.getContextInstance();
TaskMgmtInstance taskMgmtInstance = executionContext.getTaskMgmtInstance();
Token token = executionContext.getToken();
if ((contextInstance != null) && (contextInstance.hasVariable(name))) {
value = contextInstance.getVariable(name, token);
} else if ((contextInstance != null) && (contextInstance.hasTransientVariable(name))) {
value = contextInstance.getTransientVariable(name);
} else if ((taskMgmtInstance != null)
&& (taskMgmtInstance.getSwimlaneInstances() != null)
&& (taskMgmtInstance.getSwimlaneInstances().containsKey(name))) {
SwimlaneInstance swimlaneInstance = taskMgmtInstance.getSwimlaneInstance(name);
value = (swimlaneInstance != null ? swimlaneInstance.getActorId() : null);
} else if ((contextInstance != null) && (contextInstance.hasTransientVariable(name))) {
value = contextInstance.getTransientVariable(name);
} else if (JbpmConfiguration.Configs.hasObject(name)) {
value = JbpmConfiguration.Configs.getObject(name);
}
}
return value;
}
public void execute(ExecutionContext executionContext) throws Exception {
TaskMgmtDefinition tmd =
(TaskMgmtDefinition) executionContext.getDefinition(TaskMgmtDefinition.class);
Task task = tmd.getTask("watch movie amadeus");
// create as many task instances as the scenario prescribes :
// 0 tasks for scenario 1
// 1 task for scenario 2
// 2 tasks for scenario 3
// 3 tasks for scenario 4
TaskMgmtInstance tmi = executionContext.getTaskMgmtInstance();
for (int i = 1; i < scenario; i++) {
tmi.createTaskInstance(task, executionContext.getToken());
}
}
public void execute(ExecutionContext executionContext) throws Exception {
TaskMgmtInstance tmi = executionContext.getTaskMgmtInstance();
// 取得当前流程实例所有的子Token上的任务实例
Token rootToken = executionContext.getProcessInstance().getRootToken();
Collection childTokeList = rootToken.getChildren().values();
for (Iterator iterator = childTokeList.iterator(); iterator.hasNext(); ) {
Token childToken = (Token) iterator.next();
Collection c = tmi.getUnfinishedTasks(childToken);
for (Iterator iterator2 = c.iterator(); iterator2.hasNext(); ) {
TaskInstance ti = (TaskInstance) iterator2.next();
ti.cancel();
}
}
}
public static void endOneTask(Token token) {
TaskMgmtInstance tmi = token.getProcessInstance().getTaskMgmtInstance();
TaskInstance taskInstance = (TaskInstance) tmi.getUnfinishedTasks(token).iterator().next();
taskInstance.end();
}
