/**
* 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.storm.hbase.security;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.security.UserProvider;
import org.apache.hadoop.security.UserGroupInformation;
import java.io.IOException;
import java.net.InetAddress;
import java.util.Map;
/**
* This class provides util methods for storm-hbase connector communicating
* with secured HBase.
*/
public class HBaseSecurityUtil {
public static final String STORM_KEYTAB_FILE_KEY = "storm.keytab.file";
public static final String STORM_USER_NAME_KEY = "storm.kerberos.principal";
public static UserProvider login(Map conf, Configuration hbaseConfig) throws IOException {
UserProvider provider = UserProvider.instantiate(hbaseConfig);
if (UserGroupInformation.isSecurityEnabled()) {
String keytab = (String) conf.get(STORM_KEYTAB_FILE_KEY);
if (keytab != null) {
hbaseConfig.set(STORM_KEYTAB_FILE_KEY, keytab);
}
String userName = (String) conf.get(STORM_USER_NAME_KEY);
if (userName != null) {
hbaseConfig.set(STORM_USER_NAME_KEY, userName);
}
provider.login(STORM_KEYTAB_FILE_KEY, STORM_USER_NAME_KEY,
InetAddress.getLocalHost().getCanonicalHostName());
}
return provider;
}
}