[GitHub] laijianbin closed pull request #776: [SCB-693] registry microservice failed if failed to get host address

[GitBox <gi...@apache.org>]

laijianbin closed pull request #776: [SCB-693] registry microservice failed if failed to  get host address
URL: https://github.com/apache/incubator-servicecomb-java-chassis/pull/776
 
 
   

This is a PR merged from a forked repository.
As GitHub hides the original diff on merge, it is displayed below for
the sake of provenance:

As this is a foreign pull request (from a fork), the diff is supplied
below (as it won't show otherwise due to GitHub magic):

diff --git a/foundations/foundation-common/src/main/java/org/apache/servicecomb/foundation/common/net/NetUtils.java b/foundations/foundation-common/src/main/java/org/apache/servicecomb/foundation/common/net/NetUtils.java
index 8cf04d690..587af19df 100644
--- a/foundations/foundation-common/src/main/java/org/apache/servicecomb/foundation/common/net/NetUtils.java
+++ b/foundations/foundation-common/src/main/java/org/apache/servicecomb/foundation/common/net/NetUtils.java
@@ -26,6 +26,7 @@
 import java.net.SocketException;
 import java.net.URI;
 import java.net.URISyntaxException;
+import java.net.UnknownHostException;
 import java.util.Enumeration;
 import java.util.HashMap;
 import java.util.Map;
@@ -55,6 +56,10 @@
   private static String hostAddress;
 
   static {
+    doGetHostNameAndHostAddress();
+  }
+
+  private static void doGetHostNameAndHostAddress() {
     try {
       doGetIpv4AddressFromNetworkInterface();
       // getLocalHost will throw exception in some docker image and sometimes will do a hostname lookup and time consuming
@@ -189,10 +194,16 @@ public static String getRealListenAddress(String schema, String address) {
   }
 
   public static String getHostName() {
+    if (hostName == null) {
+      doGetHostNameAndHostAddress();
+    }
     return hostName;
   }
 
   public static String getHostAddress() {
+    if(hostAddress == null){ 
+      doGetHostNameAndHostAddress();
+    } 
     return hostAddress;
   }
 


 

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