From d83e0b6317cd12d9bc37f02c89800fc73cb3928b Mon Sep 17 00:00:00 2001
From: "pengdou@analysys.com.cn" <pengdou@analysys.com.cn>
Date: Wed, 26 Jun 2019 19:50:35 +0800
Subject: [PATCH] add ip utils class

---
 .../cn/escheduler/common/utils/IpUtils.java   | 70 +++++++++++++++++++
 1 file changed, 70 insertions(+)
 create mode 100644 escheduler-common/src/main/java/cn/escheduler/common/utils/IpUtils.java

diff --git a/escheduler-common/src/main/java/cn/escheduler/common/utils/IpUtils.java b/escheduler-common/src/main/java/cn/escheduler/common/utils/IpUtils.java
new file mode 100644
index 0000000000..ddc520a876
--- /dev/null
+++ b/escheduler-common/src/main/java/cn/escheduler/common/utils/IpUtils.java
@@ -0,0 +1,70 @@
+/*
+ * 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.common.utils;
+
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+
+/**
+ * http utils
+ */
+public class IpUtils {
+
+  private static final Logger logger = LoggerFactory.getLogger(IpUtils.class);
+  public static final String DOT = ".";
+
+  /**
+   * ip str to long <p>
+   *
+   * @param ipStr ip string
+   */
+  public static Long ipToLong(String ipStr) {
+    String[] ipSet = ipStr.split("\\" + DOT);
+
+    return Long.parseLong(ipSet[0]) << 24 | Long.parseLong(ipSet[1]) << 16 | Long.parseLong(ipSet[2]) << 8 | Long.parseLong(ipSet[3]);
+  }
+
+  /**
+   * long to ip
+   * @param ipLong the long number converted from IP
+   * @return String
+   */
+  public static String longToIp(long ipLong) {
+    long[] ipNumbers = new long[4];
+    long tmp = 0xFF;
+    ipNumbers[0] = ipLong >> 24 & tmp;
+    ipNumbers[1] = ipLong >> 16 & tmp;
+    ipNumbers[2] = ipLong >> 8 & tmp;
+    ipNumbers[3] = ipLong & tmp;
+
+    StringBuilder sb = new StringBuilder(16);
+    sb.append(ipNumbers[0]).append(DOT)
+            .append(ipNumbers[1]).append(DOT)
+            .append(ipNumbers[2]).append(DOT)
+            .append(ipNumbers[3]);
+    return sb.toString();
+  }
+
+
+
+  public static void main(String[] args){
+    long ipLong = ipToLong("11.3.4.5");
+    logger.info(longToIp(ipLong));
+  }
+}