[Improve]Improve flink env check method

streampark-common/src/main/java/org/apache/streampark/common/enums/FlinkEnvStatus.java

@@ -0,0 +1,44 @@
+/*
+ * 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.streampark.common.enums;
+
+/* the flink environment status */
+public enum FlinkEnvStatus {
+
+  /* FLINK_HOME path invalid */
+  INVALID(-1),
+
+  /* this add/update operation are feasible */
+  FEASIBLE(0),
+
+  /* defined flink name repeated */
+  NAME_REPEATED(1),
+
+  /* dist Jar more than one */
+  FLINK_DIST_REPEATED(2);
+
+  private final int code;
+
+  FlinkEnvStatus(int code) {
+    this.code = code;
+  }
+
+  public int getCode() {
+    return code;
+  }
+}

streampark-console/streampark-console-service/src/main/java/org/apache/streampark/console/core/controller/FlinkEnvController.java

@@ -17,6 +17,7 @@
 
 package org.apache.streampark.console.core.controller;
 
+import org.apache.streampark.common.enums.FlinkEnvStatus;
 import org.apache.streampark.console.base.domain.RestResponse;
 import org.apache.streampark.console.base.exception.ApiDetailException;
 import org.apache.streampark.console.core.entity.FlinkEnv;
@@ -52,8 +53,8 @@ public RestResponse list() {
   @Operation(summary = "Verify flink environment")
   @PostMapping("check")
   public RestResponse check(FlinkEnv version) {
-    Integer checkResp = flinkEnvService.check(version);
-    return RestResponse.success(checkResp);
+    FlinkEnvStatus checkResp = flinkEnvService.check(version);
+    return RestResponse.success(checkResp.getCode());
   }
 
   @Operation(summary = "Create flink environment")

streampark-console/streampark-console-service/src/main/java/org/apache/streampark/console/core/service/FlinkEnvService.java

@@ -17,6 +17,7 @@
 
 package org.apache.streampark.console.core.service;
 
+import org.apache.streampark.common.enums.FlinkEnvStatus;
 import org.apache.streampark.console.core.entity.FlinkEnv;
 
 import com.baomidou.mybatisplus.extension.service.IService;
@@ -29,11 +30,9 @@ public interface FlinkEnvService extends IService<FlinkEnv> {
    * Checks if a specific version of Flink exists.
    *
    * @param version The version of Flink to check.
-   * @return Returns an Integer value indicating the existence of the specified version: - 0 if the
-   *     version exists - 1 if the version does not exist - null if the version is invalid or an
-   *     error occurred during the check
+   * @return Returns enum value indicating the existence of the specified version.
    */
-  Integer check(FlinkEnv version);
+  FlinkEnvStatus check(FlinkEnv version);
 
   /**
    * Create a new instance.

streampark-console/streampark-console-service/src/main/java/org/apache/streampark/console/core/service/impl/FlinkEnvServiceImpl.java

@@ -17,6 +17,7 @@
 
 package org.apache.streampark.console.core.service.impl;
 
+import org.apache.streampark.common.enums.FlinkEnvStatus;
 import org.apache.streampark.console.base.exception.ApiAlertException;
 import org.apache.streampark.console.core.entity.FlinkEnv;
 import org.apache.streampark.console.core.mapper.FlinkEnvMapper;
@@ -49,19 +50,17 @@ public class FlinkEnvServiceImpl extends ServiceImpl<FlinkEnvMapper, FlinkEnv>
    * two places will be checked: <br>
    * 1) name repeated <br>
    * 2) flink-dist repeated <br>
-   * -1) invalid path <br>
-   * 0) ok <br>
    */
   @Override
-  public Integer check(FlinkEnv version) {
+  public FlinkEnvStatus check(FlinkEnv version) {
     // 1) check name
     LambdaQueryWrapper<FlinkEnv> queryWrapper =
         new LambdaQueryWrapper<FlinkEnv>().eq(FlinkEnv::getFlinkName, version.getFlinkName());
     if (version.getId() != null) {
       queryWrapper.ne(FlinkEnv::getId, version.getId());
     }
     if (this.count(queryWrapper) > 0) {
-      return 1;
+      return FlinkEnvStatus.NAME_REPEATED;
     }
 
     // 2) check dist_jar
@@ -70,12 +69,12 @@ public Integer check(FlinkEnv version) {
     if (flinkLib.exists() && flinkLib.isDirectory()) {
       int distSize = flinkLib.listFiles(f -> f.getName().matches("flink-dist.*\\.jar")).length;
       if (distSize > 1) {
-        return 2;
+        return FlinkEnvStatus.FLINK_DIST_REPEATED;
       }
     } else {
-      return -1;
+      return FlinkEnvStatus.INVALID;
     }
-    return 0;
+    return FlinkEnvStatus.FEASIBLE;
   }
 
   @Override

streampark-console/streampark-console-webapp/src/enums/flinkEnum.ts

@@ -234,3 +234,10 @@ export enum AppExistsEnum {
   IN_KUBERNETES = 3,
   INVALID = 4,
 }
+
+export enum FlinkEvnEnum {
+  INVALID = -1,
+  FEASIBLE = 0,
+  NAME_REPEATED = 1,
+ FLINK_DIST_REPEATED = 2,
+}

streampark-console/streampark-console-webapp/src/views/flink/home/components/Modal.vue

@@ -29,7 +29,7 @@
   import { BasicModal, useModalInner } from '/@/components/Modal';
   import { useMessage } from '/@/hooks/web/useMessage';
   import { fetchCheckEnv, fetchFlinkCreate, fetchFlinkUpdate } from '/@/api/flink/flinkEnv';
-
+  import { FlinkEvnEnum } from '/@/enums/flinkEnum';
   const emit = defineEmits(['reload', 'register']);
   const versionId = ref<string | null>(null);
   const { t } = useI18n();
@@ -100,18 +100,20 @@
       flinkHome: formValue.flinkHome,
     });
     const checkResp = parseInt(resp.data);
-    if (checkResp != 0) {
-      // Environment detection is successful
-      if (checkResp == -1) {
-        Swal.fire('Failed', 'FLINK_HOME invalid path.', 'error');
-      } else if (checkResp == 1) {
-        Swal.fire('Failed', t('setting.flinkHome.operateMessage.flinkNameIsUnique'), 'error');
-      } else if (checkResp == 2) {
-        Swal.fire(
-          'Failed',
-          'can no found flink-dist or found multiple flink-dist, FLINK_HOME error.',
-          'error',
-        );
+    if (checkResp !== FlinkEvnEnum.FEASIBLE) {
+      switch (checkResp) {
+        case FlinkEvnEnum.INVALID:
+          Swal.fire('Failed', 'FLINK_HOME invalid path.', 'error');
+          break;
+        case FlinkEvnEnum.NAME_REPEATED:
+          Swal.fire('Failed', t('setting.flinkHome.operateMessage.flinkNameIsUnique'), 'error');
+          break;
+        case FlinkEvnEnum.FLINK_DIST_REPEATED:
+          Swal.fire(
+              'Failed',
+              'can no found flink-dist or found multiple flink-dist, FLINK_HOME error.',
+              'error',
+          );
       }
       changeOkLoading(false);
       return;