/**
* 封装输出信息，包括：当前节点的X、Y坐标、变量信息、任务类型、任务描述
*
* @param activity
* @param processInstance
* @param currentActiviti
* @return
*/
private Map<String, Object> packageSingleActivitiInfo(
ActivityImpl activity, ProcessInstance processInstance, boolean currentActiviti)
throws Exception {
Map<String, Object> vars = new HashMap<String, Object>();
Map<String, Object> activityInfo = new HashMap<String, Object>();
activityInfo.put("currentActiviti", currentActiviti);
setPosition(activity, activityInfo);
setWidthAndHeight(activity, activityInfo);
Map<String, Object> properties = activity.getProperties();
vars.put("任务类型", WorkflowUtils.parseToZhType(properties.get("type").toString()));
ActivityBehavior activityBehavior = activity.getActivityBehavior();
logger.debug("activityBehavior={}", activityBehavior);
if (activityBehavior instanceof UserTaskActivityBehavior) {
Task currentTask = null;
/*
* 当前节点的task
*/
if (currentActiviti) {
currentTask = getCurrentTaskInfo(processInstance);
}
/*
* 当前任务的分配角色
*/
UserTaskActivityBehavior userTaskActivityBehavior =
(UserTaskActivityBehavior) activityBehavior;
TaskDefinition taskDefinition = userTaskActivityBehavior.getTaskDefinition();
Set<Expression> candidateGroupIdExpressions = taskDefinition.getCandidateGroupIdExpressions();
if (!candidateGroupIdExpressions.isEmpty()) {
// 任务的处理角色
setTaskGroup(vars, candidateGroupIdExpressions);
// 当前处理人
if (currentTask != null) {
setCurrentTaskAssignee(vars, currentTask);
}
}
}
vars.put("节点说明", properties.get("documentation"));
String description = activity.getProcessDefinition().getDescription();
vars.put("描述", description);
logger.debug("trace variables: {}", vars);
activityInfo.put("vars", vars);
return activityInfo;
}
public void execute(ActivityExecution execution) throws Exception {
TaskEntity task = TaskEntity.createAndInsert(execution);
task.setExecution(execution);
task.setTaskDefinition(taskDefinition);
if (taskDefinition.getNameExpression() != null) {
String name = (String) taskDefinition.getNameExpression().getValue(execution);
task.setName(name);
}
if (taskDefinition.getDescriptionExpression() != null) {
String description = (String) taskDefinition.getDescriptionExpression().getValue(execution);
task.setDescription(description);
}
if (taskDefinition.getDueDateExpression() != null) {
Object dueDate = taskDefinition.getDueDateExpression().getValue(execution);
if (dueDate != null) {
if (!(dueDate instanceof Date)) {
throw new ActivitiException(
"Due date expression does not resolve to a Date: "
+ taskDefinition.getDueDateExpression().getExpressionText());
}
task.setDueDate((Date) dueDate);
}
}
if (taskDefinition.getPriorityExpression() != null) {
final Object priority = taskDefinition.getPriorityExpression().getValue(execution);
if (priority != null) {
if (priority instanceof String) {
try {
task.setPriority(Integer.valueOf((String) priority));
} catch (NumberFormatException e) {
throw new ActivitiException("Priority does not resolve to a number: " + priority, e);
}
} else if (priority instanceof Number) {
task.setPriority(((Number) priority).intValue());
} else {
throw new ActivitiException(
"Priority expression does not resolve to a number: "
+ taskDefinition.getPriorityExpression().getExpressionText());
}
}
}
handleAssignments(task, execution);
// All properties set, now firing 'create' event
task.fireEvent(TaskListener.EVENTNAME_CREATE);
}
public void setTaskDefinition(TaskDefinition taskDefinition) {
this.taskDefinition = taskDefinition;
this.taskDefinitionKey = taskDefinition.getKey();
CommandContext commandContext = Context.getCommandContext();
if (commandContext != null) {
commandContext.getHistoryManager().recordTaskDefinitionKeyChange(this, taskDefinitionKey);
}
}
@SuppressWarnings({"unchecked"})
protected void handleAssignments(TaskEntity task, ActivityExecution execution) {
if (taskDefinition.getAssigneeExpression() != null) {
task.setAssignee((String) taskDefinition.getAssigneeExpression().getValue(execution));
}
if (!taskDefinition.getCandidateGroupIdExpressions().isEmpty()) {
for (Expression groupIdExpr : taskDefinition.getCandidateGroupIdExpressions()) {
Object value = groupIdExpr.getValue(execution);
if (value instanceof String) {
task.addCandidateGroup((String) value);
} else if (value instanceof Collection) {
task.addCandidateGroups((Collection) value);
} else {
throw new ActivitiException(
"Expression did not resolve to a string or collection of strings");
}
}
}
if (!taskDefinition.getCandidateUserIdExpressions().isEmpty()) {
for (Expression userIdExpr : taskDefinition.getCandidateUserIdExpressions()) {
Object value = userIdExpr.getValue(execution);
if (value instanceof String) {
task.addCandidateUser((String) value);
} else if (value instanceof Collection) {
task.addCandidateUsers((Collection) value);
} else {
throw new ActivitiException(
"Expression did not resolve to a string or collection of strings");
}
}
}
}
public FirstTaskForm execute(CommandContext commandContext) {
ProcessDefinitionEntity processDefinitionEntity =
Context.getProcessEngineConfiguration()
.getDeploymentManager()
.findDeployedProcessDefinitionById(processDefinitionId);
if (processDefinitionEntity == null) {
throw new IllegalArgumentException("cannot find processDefinition : " + processDefinitionId);
}
if (processDefinitionEntity.hasStartFormKey()) {
return this.findStartEventForm(processDefinitionEntity);
}
ActivityImpl startActivity = processDefinitionEntity.getInitial();
if (startActivity.getOutgoingTransitions().size() != 1) {
throw new IllegalStateException(
"start activity outgoing transitions cannot more than 1, now is : "
+ startActivity.getOutgoingTransitions().size());
}
PvmTransition pvmTransition = startActivity.getOutgoingTransitions().get(0);
PvmActivity targetActivity = pvmTransition.getDestination();
if (!"userTask".equals(targetActivity.getProperty("type"))) {
logger.info("first activity is not userTask, just skip");
return new FirstTaskForm();
}
FirstTaskForm firstTaskForm = new FirstTaskForm();
firstTaskForm.setProcessDefinitionId(processDefinitionId);
firstTaskForm.setExists(true);
firstTaskForm.setTaskForm(true);
String taskDefinitionKey = targetActivity.getId();
logger.debug("activityId : {}", targetActivity.getId());
firstTaskForm.setActivityId(taskDefinitionKey);
TaskDefinition taskDefinition =
processDefinitionEntity.getTaskDefinitions().get(taskDefinitionKey);
Expression expression = taskDefinition.getAssigneeExpression();
if (expression != null) {
String expressionText = expression.getExpressionText();
logger.debug("{}", expressionText);
logger.debug("{}", startActivity.getProperties());
logger.debug("{}", processDefinitionEntity.getProperties());
firstTaskForm.setAssignee(expressionText);
} else {
logger.info("cannot find expression : {}, {}", processDefinitionId, taskDefinitionKey);
}
String initiatorVariableName =
(String)
processDefinitionEntity.getProperty(BpmnParse.PROPERTYNAME_INITIATOR_VARIABLE_NAME);
firstTaskForm.setInitiatorName(initiatorVariableName);
DefaultFormHandler formHandler = (DefaultFormHandler) taskDefinition.getTaskFormHandler();
if (formHandler.getFormKey() != null) {
String formKey = formHandler.getFormKey().getExpressionText();
firstTaskForm.setFormKey(formKey);
} else {
logger.info("cannot formKey : {}, {}", processDefinitionId, taskDefinitionKey);
}
return firstTaskForm;
}