lgcareer commented on a change in pull request #4778:
URL:
https://github.com/apache/incubator-dolphinscheduler/pull/4778#discussion_r579585659
##########
File path:
dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/service/impl/ProcessDefinitionServiceImpl.java
##########
@@ -1797,5 +1800,94 @@ private void checkBatchOperateResult(String
srcProjectName, String targetProject
}
}
+ public Map<String, Object> queryUpstreamTaskDependencies(Integer
processId, String taskName) {
+ Map<String, Object> result = new HashMap<>();
+ List<String> depList = new ArrayList<>();
+
+ ProcessDefinition processDefinition =
processDefineMapper.selectById(processId);
+ if (processDefinition == null) {
+ logger.info("Upstream dependencies process define not exists");
+ putMsg(result, Status.PROCESS_DEFINE_NOT_EXIST, processId);
+ return result;
+ }
+
+ String processDefinitionJson =
processDefinition.getProcessDefinitionJson();
+
+ ProcessData processData = JSONUtils.parseObject(processDefinitionJson,
ProcessData.class);
+
+ //process data check
+ if (null == processData) {
+ logger.error("Upstream dependencies process data is null");
+ putMsg(result, Status.DATA_IS_NOT_VALID, processDefinitionJson);
+ return result;
+ }
+
+ List<TaskNode> taskNodeList = (processData.getTasks() == null) ? new
ArrayList<>() : processData.getTasks();
+
+ for (TaskNode taskNode : taskNodeList) {
+ if (taskNode.getName().equals(taskName)) {
+ //getPreTasks() holds inner dependency information
+ depList.add(taskNode.getPreTasks());
+ }
+
+ }
+
Review comment:
You can also abstract a class to describe the dependent item,it need
includes common attributes：project id,process definition id,task name
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