cherry-pick e76af95910

escheduler-alert/src/main/java/cn/escheduler/alert/utils/FuncUtils.java

@@ -0,0 +1,34 @@
+/*
+ * 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 cn.escheduler.alert.utils;
+
+public class FuncUtils {
+
+    static public String mkString(Iterable<String> list, String split) {
+        StringBuilder sb = new StringBuilder();
+        boolean first = true;
+        for (String item : list) {
+            if (first)
+                first = false;
+            else
+                sb.append(split);
+            sb.append(item);
+        }
+        return sb.toString();
+    }
+
+}