org.trustedanalytics.servicebroker.hbase.config.HbaseConfiguration.java Source code

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Here is the source code for org.trustedanalytics.servicebroker.hbase.config.HbaseConfiguration.java

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/**
 * Copyright (c) 2015 Intel Corporation
 *
 * Licensed 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.trustedanalytics.servicebroker.hbase.config;

import java.io.IOException;
import java.net.URISyntaxException;

import javax.security.auth.Subject;
import javax.security.auth.login.LoginException;

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.HBaseConfiguration;
import org.apache.hadoop.hbase.client.Admin;
import org.apache.hadoop.hbase.client.Connection;
import org.apache.hadoop.hbase.client.ConnectionFactory;
import org.apache.hadoop.hbase.security.User;
import org.apache.hadoop.hbase.security.UserProvider;
import org.apache.hadoop.security.UserGroupInformation;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Profile;
import org.trustedanalytics.hadoop.kerberos.KrbLoginManager;
import org.trustedanalytics.hadoop.kerberos.KrbLoginManagerFactory;
import org.trustedanalytics.servicebroker.framework.Profiles;
import org.trustedanalytics.servicebroker.framework.kerberos.KerberosProperties;

@Profile(Profiles.CLOUD)
@org.springframework.context.annotation.Configuration
public class HbaseConfiguration {

    private static final Logger LOGGER = LoggerFactory.getLogger(HbaseConfiguration.class);

    private static final String AUTHENTICATION_METHOD = "kerberos";

    private static final String AUTHENTICATION_METHOD_PROPERTY = "hbase.security.authentication";

    @Autowired
    private ExternalConfiguration configuration;

    @Autowired
    private KerberosProperties kerberosProperties;

    @Autowired
    private Configuration hbaseConf;

    @Bean(destroyMethod = "close")
    public Admin getHBaseAdmin() throws InterruptedException, URISyntaxException, LoginException, IOException {

        if (AUTHENTICATION_METHOD.equals(hbaseConf.get(AUTHENTICATION_METHOD_PROPERTY))) {
            LOGGER.info("Creating hbase client with kerberos support");
            return getSecuredHBaseClient();
        } else {
            LOGGER.info("Creating hbase client without kerberos support");
            return getUnsecuredHBaseClient();
        }
    }

    private Admin getUnsecuredHBaseClient()
            throws InterruptedException, URISyntaxException, LoginException, IOException {

        Configuration conf = HBaseConfiguration.create(hbaseConf);
        User user = UserProvider.instantiate(hbaseConf)
                .create(UserGroupInformation.createRemoteUser(configuration.getUser()));
        return ConnectionFactory.createConnection(conf, user).getAdmin();
    }

    private Admin getSecuredHBaseClient()
            throws InterruptedException, URISyntaxException, LoginException, IOException {
        LOGGER.info("Trying kerberos authentication");
        KrbLoginManager loginManager = KrbLoginManagerFactory.getInstance()
                .getKrbLoginManagerInstance(kerberosProperties.getKdc(), kerberosProperties.getRealm());

        Subject subject = loginManager.loginWithCredentials(configuration.getUser(),
                configuration.getPassword().toCharArray());
        loginManager.loginInHadoop(subject, hbaseConf);
        Configuration conf = HBaseConfiguration.create(hbaseConf);
        User user = UserProvider.instantiate(conf).create(UserGroupInformation.getUGIFromSubject(subject));
        Connection connection = ConnectionFactory.createConnection(conf, user);
        return connection.getAdmin();
    }

}