| /* |
| * 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.druid; |
| |
| import com.fasterxml.jackson.core.type.TypeReference; |
| import com.fasterxml.jackson.databind.ObjectMapper; |
| import org.apache.calcite.schema.SchemaPlus; |
| import org.apache.drill.common.JSONOptions; |
| 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.StoragePluginOptimizerRule; |
| import org.apache.drill.exec.store.druid.druid.ScanQueryBuilder; |
| import org.apache.drill.exec.store.druid.rest.DruidAdminClient; |
| import org.apache.drill.exec.store.druid.rest.DruidQueryClient; |
| import org.apache.drill.exec.store.druid.rest.RestClient; |
| import org.apache.drill.exec.store.druid.rest.RestClientWrapper; |
| import org.apache.drill.exec.store.druid.schema.DruidSchemaFactory; |
| import org.apache.drill.shaded.guava.com.google.common.collect.ImmutableSet; |
| |
| import java.io.IOException; |
| import java.util.Set; |
| |
| public class DruidStoragePlugin extends AbstractStoragePlugin { |
| private final DrillbitContext context; |
| private final DruidStoragePluginConfig pluginConfig; |
| private final DruidAdminClient druidAdminClient; |
| private final DruidQueryClient druidQueryClient; |
| private final DruidSchemaFactory schemaFactory; |
| private final ScanQueryBuilder scanQueryBuilder; |
| |
| public DruidStoragePlugin(DruidStoragePluginConfig pluginConfig, DrillbitContext context, String name) { |
| super(context, name); |
| this.pluginConfig = pluginConfig; |
| this.context = context; |
| RestClient restClient = new RestClientWrapper(); |
| this.druidAdminClient = new DruidAdminClient(pluginConfig.getCoordinatorAddress(), restClient); |
| this.druidQueryClient = new DruidQueryClient(pluginConfig.getBrokerAddress(), restClient); |
| this.schemaFactory = new DruidSchemaFactory(this, name); |
| this.scanQueryBuilder = new ScanQueryBuilder(); |
| } |
| |
| @Override |
| public DruidGroupScan getPhysicalScan(String userName, JSONOptions selection) throws IOException { |
| DruidScanSpec scanSpec = selection.getListWith(new ObjectMapper(), new TypeReference<DruidScanSpec>() {}); |
| return new DruidGroupScan(userName, this, scanSpec, null, -1); |
| } |
| |
| @Override |
| public Set<StoragePluginOptimizerRule> getPhysicalOptimizerRules( |
| OptimizerRulesContext optimizerRulesContext) { |
| return ImmutableSet.of(DruidPushDownFilterForScan.INSTANCE); |
| } |
| |
| @Override |
| public void registerSchemas(SchemaConfig schemaConfig, SchemaPlus parent) { |
| schemaFactory.registerSchemas(schemaConfig, parent); |
| } |
| |
| @Override |
| public boolean supportsRead() { |
| return true; |
| } |
| |
| @Override |
| public boolean supportsWrite() { |
| return false; |
| } |
| |
| @Override |
| public DruidStoragePluginConfig getConfig() { |
| return pluginConfig; |
| } |
| |
| public DrillbitContext getContext() { |
| return this.context; |
| } |
| |
| public DruidAdminClient getAdminClient() { |
| return this.druidAdminClient; |
| } |
| |
| public DruidQueryClient getDruidQueryClient() { return this.druidQueryClient; } |
| |
| public ScanQueryBuilder getScanQueryBuilder() { return scanQueryBuilder; } |
| } |