[GitHub] [incubator-dolphinscheduler] gaojun2048 commented on a change in pull request #3659: [Feature]Add Python task "task variable / result transfer" implementation

[GitBox <gi...@apache.org>]

gaojun2048 commented on a change in pull request #3659:
URL: https://github.com/apache/incubator-dolphinscheduler/pull/3659#discussion_r489398098



##########
File path: dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/master/runner/MasterExecThread.java
##########
@@ -651,14 +653,22 @@ private void setTaskNodeSkip(List<String> taskNodesSkipList){
      * submit post node
      * @param parentNodeName parent node name
      */
+    private Map<String,Object> propToValue = new ConcurrentHashMap<String, Object>();
     private void submitPostNode(String parentNodeName){
 
         List<String> submitTaskNodeList = parsePostNodeList(parentNodeName);
 
         List<TaskInstance> taskInstances = new ArrayList<>();
         for(String taskNode : submitTaskNodeList){
+            try {
+                VarPoolUtils.convertVarPoolToMap(propToValue, processInstance.getVarPool());
+            } catch (ParseException e) {
+                logger.error("parse {} exception", processInstance.getVarPool(), e);

Review comment:
       only print logger here?  can you add a comment about it?

##########
File path: dolphinscheduler-common/src/main/java/org/apache/dolphinscheduler/common/task/TaskParams.java
##########
@@ -0,0 +1,78 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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.apache.dolphinscheduler.common.task;
+
+import java.util.Map;
+
+public class TaskParams {
+
+    private String rawScript;
+    private Map<String, String>[] localParams;
+
+    public void setRawScript(String rawScript) {
+        this.rawScript = rawScript;
+    }
+
+    public void setLocalParams(Map<String, String>[] localParams) {
+        this.localParams = localParams;
+    }
+
+    public String getRawScript() {
+        return rawScript;
+    }
+
+    public void setLocalParamValue(String prop, Object value) {
+        if (localParams == null) {
+            return;
+        }
+        for (int i = 0; i < localParams.length; i++) {
+            if (localParams[i].get("prop").equals(prop)) {
+                localParams[i].put("value", (String)value);
+            }
+        }
+    }
+
+    public void setLocalParamValue(Map<String, Object> propToValue) {
+        if (localParams == null) {
+            return;
+        }
+        for (int i = 0; i < localParams.length; i++) {
+            String prop = localParams[i].get("prop");
+            if (propToValue.containsKey(prop)) {

Review comment:
       propToValue may be null




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