kokila-19 commented on code in PR #5729:
URL: https://github.com/apache/hive/pull/5729#discussion_r2028038094
##########
common/src/java/org/apache/hive/common/IPStackUtils.java:
##########
@@ -219,4 +219,94 @@ public static String transformToIPv6(String ipv4, int
port) {
return ipv4;
}
}
+
+ /**
+ * Splits a given input string representing a Hostname or an IP address and
port into an `HostPort` object.
+ * The input string must be in the format of IPv4/IPv6/[IPv6]/hostname:port.
+ *
+ * @param input The input string containing the Hostname/IP address and
port, in the format
+ * "IPv4:port", "[IPv6]:port", "IPv6:port", or "hostname:port".
+ * @return A {@link HostPort} object containing the parsed IP address and
port number.
+ * @throws IllegalArgumentException If the input format is invalid, if the
host is null or empty,
+ * or if the port number is invalid.
+ */
+ public static HostPort splitHostPort(String input) {
+
+ String host;
+ int port;
+
+ if (input == null || input.isEmpty()) {
+ throw new IllegalArgumentException("Input string is null or empty");
+ }
+
+ // Check if the input contains a colon, which separates the host and port
+ int colonIndex = input.lastIndexOf(':');
+ if (colonIndex == -1) {
+ throw new IllegalArgumentException("Input does not contain a port.");
+ }
+
+ // Extract the host and port parts
+ host = input.substring(0, colonIndex);
+ String portStr = input.substring(colonIndex + 1);
+
+ // Check if the port is valid
+ if (!isValidPort(portStr)) {
+ throw new IllegalArgumentException("Port number out of range
(1-65535).");
Review Comment:
The current isValidPort method allows port 0, but as per the error message
**"Port number out of range (1-65535)"**, port 0 is reserved and should not be
used.
To make the logic consistent with the error message and for proper
validation, the check can be updated from
**return port >= 0 && port <= 65535;**
to
**return port >= 1 && port <= 65535;**
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