[BUG][WORKER-9349]fix param priority (#9379)

* fix param priority

* fix params priority code logic

dolphinscheduler-task-plugin/dolphinscheduler-task-api/src/main/java/org/apache/dolphinscheduler/plugin/task/api/parameters/AbstractParameters.java

@@ -75,15 +75,14 @@ public abstract class AbstractParameters implements IParameters {
      * @return parameters map
      */
     public Map<String, Property> getLocalParametersMap() {
+        Map<String, Property> localParametersMaps = new LinkedHashMap<>();
         if (localParams != null) {
-            Map<String, Property> localParametersMaps = new LinkedHashMap<>();
 
             for (Property property : localParams) {
                 localParametersMaps.put(property.getProp(),property);
             }
-            return localParametersMaps;
         }
-        return null;
+        return localParametersMaps;
     }
 
     /**
@@ -92,14 +91,13 @@ public abstract class AbstractParameters implements IParameters {
      * @return parameters map
      */
     public Map<String, Property> getVarPoolMap() {
+        Map<String, Property> varPoolMap = new LinkedHashMap<>();
         if (varPool != null) {
-            Map<String, Property> varPoolMap = new LinkedHashMap<>();
             for (Property property : varPool) {
                 varPoolMap.put(property.getProp(), property);
             }
-            return varPoolMap;
         }
-        return null;
+        return varPoolMap;
     }
 
     public List<Property> getVarPool() {

dolphinscheduler-task-plugin/dolphinscheduler-task-api/src/main/java/org/apache/dolphinscheduler/plugin/task/api/parser/ParamUtils.java

@@ -63,9 +63,10 @@ public class ParamUtils {
         // combining local and global parameters
         Map<String, Property> localParams = parameters.getLocalParametersMap();
 
+        //stream pass params
         Map<String, Property> varParams = parameters.getVarPoolMap();
 
-        if (globalParams == null && localParams == null) {
+        if (globalParams.size() == 0 && localParams.size() == 0 && varParams.size() == 0) {
             return null;
         }
         // if it is a complement,
@@ -85,15 +86,13 @@ public class ParamUtils {
         }
         params.put(PARAMETER_TASK_INSTANCE_ID, Integer.toString(taskExecutionContext.getTaskInstanceId()));
 
-        if (globalParams != null && localParams != null) {
-            globalParams.putAll(localParams);
-        } else if (globalParams == null && localParams != null) {
-            globalParams = localParams;
+        if (varParams.size() != 0) {
+            globalParams.putAll(varParams);
         }
-        if (varParams != null) {
-            varParams.putAll(globalParams);
-            globalParams = varParams;
+        if (localParams.size() != 0) {
+            globalParams.putAll(localParams);
         }
+
         Iterator<Map.Entry<String, Property>> iter = globalParams.entrySet().iterator();
         while (iter.hasNext()) {
             Map.Entry<String, Property> en = iter.next();
@@ -143,16 +142,15 @@ public class ParamUtils {
      * @return parameters map
      */
     public static Map<String, Property> getUserDefParamsMap(Map<String, String> definedParams) {
+        Map<String, Property> userDefParamsMaps = new HashMap<>();
         if (definedParams != null) {
-            Map<String, Property> userDefParamsMaps = new HashMap<>();
             Iterator<Map.Entry<String, String>> iter = definedParams.entrySet().iterator();
             while (iter.hasNext()) {
                 Map.Entry<String, String> en = iter.next();
                 Property property = new Property(en.getKey(), Direct.IN, DataType.VARCHAR, en.getValue());
                 userDefParamsMaps.put(property.getProp(),property);
             }
-            return userDefParamsMaps;
         }
-        return null;
+        return userDefParamsMaps;
     }
 }