[Improvement-4568][API] When the workflow definition name validation API fails, the system prompts that the workflow definition name already exists (#4569)

* fix dev definition api error prompt.

* imp api definition name verify message prompt.

dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/enums/Status.java

@@ -133,7 +133,7 @@ public enum Status {
     QUERY_TASK_INSTANCE_LOG_ERROR(10103, "view task instance log error", "查询任务实例日志错误"),
     DOWNLOAD_TASK_INSTANCE_LOG_FILE_ERROR(10104, "download task instance log file error", "下载任务日志文件错误"),
     CREATE_PROCESS_DEFINITION(10105, "create process definition", "创建工作流错误"),
-    VERIFY_PROCESS_DEFINITION_NAME_UNIQUE_ERROR(10106, "verify process definition name unique error", "工作流定义名称已存在"),
+    VERIFY_PROCESS_DEFINITION_NAME_UNIQUE_ERROR(10106, "verify process definition name unique error", "工作流定义名称验证错误"),
     UPDATE_PROCESS_DEFINITION_ERROR(10107, "update process definition error", "更新工作流定义错误"),
     RELEASE_PROCESS_DEFINITION_ERROR(10108, "release process definition error", "上线工作流错误"),
     QUERY_DATAIL_OF_PROCESS_DEFINITION_ERROR(10109, "query datail of process definition error", "查询工作流详细信息错误"),
@@ -199,6 +199,7 @@ public enum Status {
     FORCE_TASK_SUCCESS_ERROR(10165, "force task success error", "强制成功任务实例错误"),
     TASK_INSTANCE_STATE_OPERATION_ERROR(10166, "the status of task instance {0} is {1},Cannot perform force success operation", "任务实例[{0}]的状态是[{1}]，无法执行强制成功操作"),
     DATASOURCE_TYPE_NOT_EXIST(10167, "data source type not exist", "数据源类型不存在"),
+    PROCESS_DEFINITION_NAME_EXIST(10168, "process definition name {0} already exists", "工作流定义名称[{0}]已存在"),
 
     UDF_FUNCTION_NOT_EXIST(20001, "UDF function not found", "UDF函数不存在"),
     UDF_FUNCTION_EXISTS(20002, "UDF function already exists", "UDF函数已存在"),

dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/service/impl/ProcessDefinitionServiceImpl.java

@@ -429,7 +429,7 @@ public class ProcessDefinitionServiceImpl extends BaseService implements
             // check whether the new process define name exist
             ProcessDefinition definition = processDefineMapper.verifyByDefineName(project.getId(), name);
             if (definition != null) {
-                putMsg(result, Status.VERIFY_PROCESS_DEFINITION_NAME_UNIQUE_ERROR, name);
+                putMsg(result, Status.PROCESS_DEFINITION_NAME_EXIST, name);
                 return result;
             }
         }
@@ -497,7 +497,7 @@ public class ProcessDefinitionServiceImpl extends BaseService implements
         if (processDefinition == null) {
             putMsg(result, Status.SUCCESS);
         } else {
-            putMsg(result, Status.VERIFY_PROCESS_DEFINITION_NAME_UNIQUE_ERROR, name);
+            putMsg(result, Status.PROCESS_DEFINITION_NAME_EXIST, name);
         }
         return result;
     }

dolphinscheduler-api/src/test/java/org/apache/dolphinscheduler/api/controller/ProcessDefinitionControllerTest.java

@@ -117,14 +117,14 @@ public class ProcessDefinitionControllerTest {
     public void testVerifyProcessDefinitionName() throws Exception {
 
         Map<String, Object> result = new HashMap<>();
-        putMsg(result, Status.VERIFY_PROCESS_DEFINITION_NAME_UNIQUE_ERROR);
+        putMsg(result, Status.PROCESS_DEFINITION_NAME_EXIST);
         String projectName = "test";
         String name = "dag_test";
 
         Mockito.when(processDefinitionService.verifyProcessDefinitionName(user, projectName, name)).thenReturn(result);
 
         Result response = processDefinitionController.verifyProcessDefinitionName(user, projectName, name);
-        Assert.assertEquals(Status.VERIFY_PROCESS_DEFINITION_NAME_UNIQUE_ERROR.getCode(), response.getCode().intValue());
+        Assert.assertEquals(Status.PROCESS_DEFINITION_NAME_EXIST.getCode(), response.getCode().intValue());
 
     }
 

dolphinscheduler-api/src/test/java/org/apache/dolphinscheduler/api/service/ProcessDefinitionServiceTest.java

@@ -657,7 +657,7 @@ public class ProcessDefinitionServiceTest {
         Mockito.when(processDefineMapper.verifyByDefineName(project.getId(), "test_pdf")).thenReturn(getProcessDefinition());
         Map<String, Object> processExistRes = processDefinitionService.verifyProcessDefinitionName(loginUser,
                 "project_test1", "test_pdf");
-        Assert.assertEquals(Status.VERIFY_PROCESS_DEFINITION_NAME_UNIQUE_ERROR, processExistRes.get(Constants.STATUS));
+        Assert.assertEquals(Status.PROCESS_DEFINITION_NAME_EXIST, processExistRes.get(Constants.STATUS));
     }
 
     @Test