eolivelli commented on a change in pull request #2240: fix the problem that the
method InetAddress.getLocalHost().getHostAddress() gets ip as 127.0.0.1
URL: https://github.com/apache/bookkeeper/pull/2240#discussion_r369247197
##########
File path:
bookkeeper-server/src/main/java/org/apache/bookkeeper/net/NetUtils.java
##########
@@ -85,4 +86,44 @@ public static String
resolveNetworkLocation(DNSToSwitchMapping dnsResolver, Inet
return rNames.get(0);
}
+ public static String getLocalHost() throws UnknownHostException {
+ String ip = InetAddress.getLocalHost().getHostAddress();
+ if (ip.equals("127.0.0.1")) {
+ return getAddress();
+ } else
+ return ip;
+
+ }
+
+ private static boolean isboolIp(String ipAddress) {
+ Pattern pattern = Pattern.compile(ip);
+ Matcher matcher = pattern.matcher(ipAddress);
+ return matcher.matches();
+ }
+
+ private static String getAddress() throws UnknownHostException {
+ try {
+ for (Enumeration<NetworkInterface> interfaces =
NetworkInterface.getNetworkInterfaces(); interfaces.hasMoreElements();) {
+ NetworkInterface networkInterface = interfaces.nextElement();
+ if (networkInterface.isLoopback() ||
networkInterface.isVirtual() || !networkInterface.isUp()) {
+ continue;
+ }
+ Enumeration<InetAddress> addresses =
networkInterface.getInetAddresses();
+ if (addresses.hasMoreElements()) {
+ while (addresses.hasMoreElements()) {
+ String ip = addresses.nextElement().getHostAddress();
+ if (isboolIp(ip)) {
+ return ip;
+ }
+ }
+ }
+ }
+ throw new RuntimeException("InetAddress
java.net.InetAddress.getLocalHost() throws UnknownHostException");
+ } catch (Throwable e) {
Review comment:
Please catch only specific exceptions
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