| /* |
| * 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.drill.exec.store.jdbc; |
| |
| import javax.sql.DataSource; |
| import java.util.Properties; |
| import java.util.Set; |
| |
| import com.zaxxer.hikari.HikariConfig; |
| import com.zaxxer.hikari.HikariDataSource; |
| import org.apache.calcite.adapter.jdbc.JdbcSchema; |
| import org.apache.calcite.plan.RelOptRule; |
| import org.apache.calcite.schema.SchemaPlus; |
| import org.apache.calcite.sql.SqlDialect; |
| import org.apache.calcite.sql.SqlDialectFactoryImpl; |
| import org.apache.drill.common.AutoCloseables; |
| import org.apache.drill.common.exceptions.UserException; |
| import org.apache.drill.exec.ops.OptimizerRulesContext; |
| import org.apache.drill.exec.server.DrillbitContext; |
| import org.apache.drill.exec.store.AbstractStoragePlugin; |
| import org.apache.drill.exec.store.SchemaConfig; |
| import org.apache.drill.exec.store.security.UsernamePasswordCredentials; |
| import org.apache.drill.shaded.guava.com.google.common.annotations.VisibleForTesting; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| public class JdbcStoragePlugin extends AbstractStoragePlugin { |
| |
| private static final Logger logger = LoggerFactory.getLogger(JdbcStoragePlugin.class); |
| |
| private final JdbcStorageConfig config; |
| private final HikariDataSource dataSource; |
| private final SqlDialect dialect; |
| private final DrillJdbcConvention convention; |
| |
| public JdbcStoragePlugin(JdbcStorageConfig config, DrillbitContext context, String name) { |
| super(context, name); |
| this.config = config; |
| this.dataSource = initDataSource(config); |
| this.dialect = JdbcSchema.createDialect(SqlDialectFactoryImpl.INSTANCE, dataSource); |
| this.convention = new DrillJdbcConvention(dialect, name, this); |
| } |
| |
| @Override |
| public void registerSchemas(SchemaConfig config, SchemaPlus parent) { |
| JdbcCatalogSchema schema = new JdbcCatalogSchema(getName(), dataSource, dialect, convention, |
| !this.config.areTableNamesCaseInsensitive()); |
| SchemaPlus holder = parent.add(getName(), schema); |
| schema.setHolder(holder); |
| } |
| |
| @Override |
| public JdbcStorageConfig getConfig() { |
| return config; |
| } |
| |
| @Override |
| public boolean supportsRead() { |
| return true; |
| } |
| |
| public DataSource getDataSource() { |
| return dataSource; |
| } |
| |
| public SqlDialect getDialect() { |
| return dialect; |
| } |
| |
| @Override |
| public Set<RelOptRule> getPhysicalOptimizerRules(OptimizerRulesContext context) { |
| return convention.getRules(); |
| } |
| |
| @Override |
| public void close() { |
| AutoCloseables.closeSilently(dataSource); |
| } |
| |
| /** |
| * Initializes {@link HikariDataSource} instance and configures it based on given |
| * storage plugin configuration. |
| * Basic parameters such as driver, url, user name and password are set using setters. |
| * Other source parameters are set dynamically through the properties. See the list |
| * of available Hikari properties: <a href="https://github.com/brettwooldridge/HikariCP">. |
| * |
| * @param config storage plugin config |
| * @return Hikari data source instance |
| * @throws UserException if unable to configure Hikari data source |
| */ |
| @VisibleForTesting |
| static HikariDataSource initDataSource(JdbcStorageConfig config) { |
| try { |
| Properties properties = new Properties(); |
| properties.putAll(config.getSourceParameters()); |
| |
| HikariConfig hikariConfig = new HikariConfig(properties); |
| |
| hikariConfig.setDriverClassName(config.getDriver()); |
| hikariConfig.setJdbcUrl(config.getUrl()); |
| UsernamePasswordCredentials credentials = config.getUsernamePasswordCredentials(); |
| hikariConfig.setUsername(credentials.getUsername()); |
| hikariConfig.setPassword(credentials.getPassword()); |
| |
| return new HikariDataSource(hikariConfig); |
| } catch (RuntimeException e) { |
| throw UserException.connectionError(e) |
| .message("Unable to configure data source: %s", e.getMessage()) |
| .build(logger); |
| } |
| } |
| } |