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/**
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.hadoop.hbase.thrift2;
import java.nio.ByteBuffer;
import java.security.PrivilegedExceptionAction;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.security.auth.Subject;
import javax.security.auth.login.AppConfigurationEntry;
import javax.security.auth.login.Configuration;
import javax.security.auth.login.LoginContext;
import javax.security.sasl.Sasl;
import org.apache.hadoop.hbase.thrift2.generated.TColumnValue;
import org.apache.hadoop.hbase.thrift2.generated.TGet;
import org.apache.hadoop.hbase.thrift2.generated.THBaseService;
import org.apache.hadoop.hbase.thrift2.generated.TPut;
import org.apache.hadoop.hbase.thrift2.generated.TResult;
import org.apache.thrift.protocol.TBinaryProtocol;
import org.apache.thrift.protocol.TProtocol;
import org.apache.thrift.transport.TFramedTransport;
import org.apache.thrift.transport.TSaslClientTransport;
import org.apache.thrift.transport.TSocket;
import org.apache.thrift.transport.TTransport;
public class DemoClient {
private static String host = "localhost";
private static int port = 9090;
private static boolean secure = false;
public static void main(String[] args) throws Exception {
System.out.println("Thrift2 Demo");
System.out.println("Usage: DemoClient [host=localhost] [port=9090] [secure=false]");
System.out.println("This demo assumes you have a table called \"example\" with a column family called \"family1\"");
// use passed in arguments instead of defaults
if (args.length >= 1) {
host = args[0];
}
if (args.length >= 2) {
port = Integer.parseInt(args[1]);
}
if (args.length >= 3) {
secure = Boolean.parseBoolean(args[2]);
}
final DemoClient client = new DemoClient();
Subject.doAs(getSubject(),
new PrivilegedExceptionAction() {
@Override
public Void run() throws Exception {
client.run();
return null;
}
});
}
public void run() throws Exception {
int timeout = 10000;
boolean framed = false;
TTransport transport = new TSocket(host, port, timeout);
if (framed) {
transport = new TFramedTransport(transport);
} else if (secure) {
/**
* The Thrift server the DemoClient is trying to connect to
* must have a matching principal, and support authentication.
*
* The HBase cluster must be secure, allow proxy user.
*/
Map saslProperties = new HashMap();
saslProperties.put(Sasl.QOP, "auth-conf,auth-int,auth");
transport = new TSaslClientTransport("GSSAPI", null,
"hbase", // Thrift server user name, should be an authorized proxy user.
host, // Thrift server domain
saslProperties, null, transport);
}
TProtocol protocol = new TBinaryProtocol(transport);
// This is our thrift client.
THBaseService.Iface client = new THBaseService.Client(protocol);
// open the transport
transport.open();
ByteBuffer table = ByteBuffer.wrap("example".getBytes());
TPut put = new TPut();
put.setRow("row1".getBytes());
TColumnValue columnValue = new TColumnValue();
columnValue.setFamily("family1".getBytes());
columnValue.setQualifier("qualifier1".getBytes());
columnValue.setValue("value1".getBytes());
List columnValues = new ArrayList();
columnValues.add(columnValue);
put.setColumnValues(columnValues);
client.put(table, put);
TGet get = new TGet();
get.setRow("row1".getBytes());
TResult result = client.get(table, get);
System.out.print("row = " + new String(result.getRow()));
for (TColumnValue resultColumnValue : result.getColumnValues()) {
System.out.print("family = " + new String(resultColumnValue.getFamily()));
System.out.print("qualifier = " + new String(resultColumnValue.getFamily()));
System.out.print("value = " + new String(resultColumnValue.getValue()));
System.out.print("timestamp = " + resultColumnValue.getTimestamp());
}
transport.close();
}
static Subject getSubject() throws Exception {
if (!secure) return new Subject();
/*
* To authenticate the DemoClient, kinit should be invoked ahead.
* Here we try to get the Kerberos credential from the ticket cache.
*/
LoginContext context = new LoginContext("", new Subject(), null,
new Configuration() {
@Override
public AppConfigurationEntry[] getAppConfigurationEntry(String name) {
Map options = new HashMap();
options.put("useKeyTab", "false");
options.put("storeKey", "false");
options.put("doNotPrompt", "true");
options.put("useTicketCache", "true");
options.put("renewTGT", "true");
options.put("refreshKrb5Config", "true");
options.put("isInitiator", "true");
String ticketCache = System.getenv("KRB5CCNAME");
if (ticketCache != null) {
options.put("ticketCache", ticketCache);
}
options.put("debug", "true");
return new AppConfigurationEntry[]{
new AppConfigurationEntry("com.sun.security.auth.module.Krb5LoginModule",
AppConfigurationEntry.LoginModuleControlFlag.REQUIRED,
options)};
}
});
context.login();
return context.getSubject();
}
}
