| /** |
| * 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. |
| */ |
| |
| import java.sql.Connection; |
| import java.sql.DriverManager; |
| import java.sql.ResultSet; |
| import java.sql.SQLException; |
| import java.sql.Statement; |
| |
| import java.util.logging.Level; |
| import java.util.logging.Logger; |
| |
| public class HiveJDBCSample { |
| |
| public static void main( String[] args ) { |
| Connection connection = null; |
| Statement statement = null; |
| ResultSet resultSet = null; |
| |
| try { |
| String user = "guest"; |
| String password = user + "-password"; |
| String gatewayHost = "localhost"; |
| int gatewayPort = 8443; |
| String trustStore = "/usr/lib/knox/data/security/keystores/gateway.jks"; |
| String trustStorePassword = "knoxsecret"; |
| String contextPath = "gateway/sandbox-with-knox-inside/hive"; |
| String connectionString = String.format( "jdbc:hive2://%s:%d/;ssl=true;sslTrustStore=%s;trustStorePassword=%s?hive.server2.transport.mode=http;hive.server2.thrift.http.path=/%s", gatewayHost, gatewayPort, trustStore, trustStorePassword, contextPath ); |
| |
| // Load Hive JDBC Driver |
| Class.forName( "org.apache.hive.jdbc.HiveDriver" ); |
| |
| // Configure JDBC connection |
| connection = DriverManager.getConnection( connectionString, user, password ); |
| |
| statement = connection.createStatement(); |
| |
| // Disable Hive authorization - This can be ommited if Hive authorization is configured properly |
| statement.execute( "set hive.security.authorization.enabled=false" ); |
| |
| // Drop sample table to ensure repeatability |
| statement.execute( "DROP TABLE logs" ); |
| |
| // Create sample table |
| statement.execute( "CREATE TABLE logs(column1 string, column2 string, column3 string, column4 string, column5 string, column6 string, column7 string) ROW FORMAT DELIMITED FIELDS TERMINATED BY ' '" ); |
| |
| // Load data into Hive from file /tmp/log.txt which is placed on the local file system |
| statement.execute( "LOAD DATA LOCAL INPATH '/tmp/sample.log' OVERWRITE INTO TABLE logs" ); |
| |
| resultSet = statement.executeQuery( "SELECT * FROM logs" ); |
| |
| while ( resultSet.next() ) { |
| System.out.println( resultSet.getString( 1 ) + " --- " + resultSet.getString( 2 ) ); |
| } |
| } catch ( ClassNotFoundException ex ) { |
| Logger.getLogger( HiveJDBCSample.class.getName() ).log( Level.SEVERE, null, ex ); |
| } catch ( SQLException ex ) { |
| Logger.getLogger( HiveJDBCSample.class.getName() ).log( Level.SEVERE, null, ex ); |
| } finally { |
| if ( resultSet != null ) { |
| try { |
| resultSet.close(); |
| } catch ( SQLException ex ) { |
| Logger.getLogger( HiveJDBCSample.class.getName() ).log( Level.SEVERE, null, ex ); |
| } |
| } |
| if ( statement != null ) { |
| try { |
| statement.close(); |
| } catch ( SQLException ex ) { |
| Logger.getLogger( HiveJDBCSample.class.getName() ).log( Level.SEVERE, null, ex ); |
| } |
| } |
| if ( connection != null ) { |
| try { |
| connection.close(); |
| } catch ( SQLException ex ) { |
| Logger.getLogger( HiveJDBCSample.class.getName() ).log( Level.SEVERE, null, ex ); |
| } |
| } |
| } |
| } |
| } |