paul-rogers commented on a change in pull request #1892: Drill-7437: Storage Plugin for Generic HTTP REST API URL: https://github.com/apache/drill/pull/1892#discussion_r363135077
########## File path: contrib/storage-http/src/main/java/org/apache/drill/exec/store/http/HttpAPIConnectionSchema.java ########## @@ -0,0 +1,82 @@ +/* + * 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.http; + +import org.apache.calcite.schema.Table; +import org.apache.drill.exec.planner.logical.DynamicDrillTable; +import org.apache.drill.exec.store.AbstractSchema; + +import java.util.HashMap; +import java.util.Map; +import java.util.Set; + +/** + * In the HTTP storage plugin, users can define specific connections or APIs. This class represents the + * database component of other storage plugins. + */ +public class HttpAPIConnectionSchema extends AbstractSchema { + + + private final Map<String, DynamicDrillTable> activeTables = new HashMap<>(); + + private final HttpStoragePlugin plugin; + + private final String pluginName; + + public HttpAPIConnectionSchema(HttpSchemaFactory.HttpSchema httpSchema, + String name, + HttpStoragePlugin plugin) { + super(httpSchema.getSchemaPath(), name); + this.plugin = plugin; + pluginName = plugin.getName(); + } + + @Override + public String getTypeName() { + return HttpStoragePluginConfig.NAME; + } + + /** + * This function get the table that is received from the query. + * @param tableName The "tableName" actually will contain the URL arguments passed to the record reader + * @return Table Returns the selected table + */ + @Override + public Table getTable(String tableName) { + DynamicDrillTable table = activeTables.get(name); + if (table != null) { + return table; + } + + if (!activeTables.containsKey(name)) { + return registerTable(name, new DynamicDrillTable(plugin, pluginName, new HttpScanSpec(pluginName, name, tableName, plugin.getConfig()))); + } + return null; + } + + @Override + public Set<String> getTableNames() { + return activeTables.keySet(); + } + + private DynamicDrillTable registerTable(String name, DynamicDrillTable table) { + activeTables.put(name, table); + return table; Review comment: Nit: since all this does is add an item to the map, might as well be done inline above. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org With regards, Apache Git Services
