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[minor] fix NetworkUtils#getHostname (#4355)

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This commit is contained in:
Danny Chan
2021-12-19 10:09:48 +08:00
committed by GitHub
parent bb99836841
commit 478f9f3695
1 changed files with 4 additions and 14 deletions
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18
hudi-common/src/main/java/org/apache/hudi/common/util/NetworkUtils.java
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@@ -21,8 +21,8 @@ package org.apache.hudi.common.util;
import org.apache.hudi.exception.HoodieException;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.net.Socket;
import java.net.DatagramSocket;
import java.net.InetAddress;
/**
* A utility class for network.
@@ -30,23 +30,13 @@ import java.net.Socket;
public class NetworkUtils {
public static synchronized String getHostname() {
Socket s = null;
try {
s = new Socket();
try (DatagramSocket s = new DatagramSocket()) {
// see https://stackoverflow.com/questions/9481865/getting-the-ip-address-of-the-current-machine-using-java
// for details.
s.connect(new InetSocketAddress("google.com", 80));
s.connect(InetAddress.getByName("8.8.8.8"), 10002);
return s.getLocalAddress().getHostAddress();
} catch (IOException e) {
throw new HoodieException("Unable to find server port", e);
} finally {
if (null != s) {
try {
s.close();
} catch (IOException e) {
throw new HoodieException("Unable to close server port", e);
}
}
}
}
}