HBASE-18387: [Thrift] Make principal configurable in DemoClient.java
Added optional (fourth) parameter "server-principal" The solution is backward compatible, in case not given, uses "hbase" as default value If the third parameter is skipped the fourth cannot be set. Signed-off-by: Josh Elser <elserj@apache.org>
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@ -28,7 +28,8 @@ Example code.
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2. If HBase server is not secure, or authentication is not enabled for the Thrift server, execute:
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{java -cp hbase-examples-[VERSION].jar:${HBASE_EXAMPLE_CLASSPATH} org.apache.hadoop.hbase.thrift.DemoClient <host> <port>}
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3. If HBase server is secure, and authentication is enabled for the Thrift server, run kinit at first, then execute:
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{java -cp hbase-examples-[VERSION].jar:${HBASE_EXAMPLE_CLASSPATH} org.apache.hadoop.hbase.thrift.DemoClient <host> <port> true}
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{java -cp hbase-examples-[VERSION].jar:${HBASE_EXAMPLE_CLASSPATH} org.apache.hadoop.hbase.thrift.DemoClient <host> <port> true <server-principal>}
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<server-principal> should only be specified when the client connects to a secure cluster. It's default value is "hbase".
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4. Here is a lazy example that just pulls in all hbase dependency jars and that goes against default location on localhost.
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It should work with a standalone hbase instance started by doing ./bin/start-hbase.sh:
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{java -cp ./hbase-examples/target/hbase-examples-2.0.0-SNAPSHOT.jar:`./bin/hbase classpath` org.apache.hadoop.hbase.thrift.DemoClient localhost 9090}
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@ -60,13 +60,14 @@ public class DemoClient {
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CharsetDecoder decoder = null;
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private static boolean secure = false;
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private static String serverPrincipal = "hbase";
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public static void main(String[] args) throws Exception {
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if (args.length < 2 || args.length > 3) {
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if (args.length < 2 || args.length > 4 || (args.length > 2 && !isBoolean(args[2]))) {
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System.out.println("Invalid arguments!");
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System.out.println("Usage: DemoClient host port [secure=false]");
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System.out.println("Usage: DemoClient host port [secure=false [server-principal=hbase] ]");
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System.exit(-1);
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}
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@ -77,6 +78,10 @@ public class DemoClient {
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secure = Boolean.parseBoolean(args[2]);
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}
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if (args.length == 4) {
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serverPrincipal = args[3];
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}
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final DemoClient client = new DemoClient();
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Subject.doAs(getSubject(),
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new PrivilegedExceptionAction<Void>() {
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@ -88,6 +93,10 @@ public class DemoClient {
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});
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}
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private static boolean isBoolean(String s){
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return Boolean.TRUE.toString().equalsIgnoreCase(s) || Boolean.FALSE.toString().equalsIgnoreCase(s);
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}
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DemoClient() {
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decoder = Charset.forName("UTF-8").newDecoder();
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}
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@ -123,7 +132,7 @@ public class DemoClient {
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* The HBase cluster must be secure, allow proxy user.
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*/
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transport = new TSaslClientTransport("GSSAPI", null,
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"hbase", // Thrift server user name, should be an authorized proxy user.
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serverPrincipal, // Thrift server user name, should be an authorized proxy user.
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host, // Thrift server domain
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saslProperties, null, transport);
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}
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