| /* |
| * 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.udfs; |
| |
| import org.apache.commons.lang3.StringUtils; |
| import org.apache.drill.exec.physical.resultSet.ResultSetLoader; |
| import org.apache.drill.exec.server.options.OptionManager; |
| import org.apache.drill.exec.store.easy.json.loader.JsonLoaderImpl; |
| import org.apache.drill.exec.store.easy.json.loader.ClosingStreamIterator; |
| import org.apache.drill.exec.store.http.HttpApiConfig; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| public class HttpUdfUtils { |
| |
| private static final Logger logger = LoggerFactory.getLogger(HttpUdfUtils.class); |
| |
| public static JsonLoaderImpl createJsonLoader(ResultSetLoader rsLoader, |
| OptionManager options, |
| ClosingStreamIterator stream) { |
| return createJsonLoader(null, rsLoader, options, stream); |
| } |
| public static JsonLoaderImpl createJsonLoader(HttpApiConfig endpointConfig, ResultSetLoader rsLoader, |
| OptionManager options, ClosingStreamIterator stream) { |
| // Add JSON configuration from Storage plugin, if present. |
| org.apache.drill.exec.store.easy.json.loader.JsonLoaderImpl.JsonLoaderBuilder jsonLoaderBuilder = |
| new org.apache.drill.exec.store.easy.json.loader.JsonLoaderImpl.JsonLoaderBuilder() |
| .resultSetLoader(rsLoader) |
| .standardOptions(options) |
| .fromStream(() -> stream); |
| // Add data path if present |
| if (endpointConfig != null) { |
| if (StringUtils.isNotEmpty(endpointConfig.dataPath())) { |
| jsonLoaderBuilder.dataPath(endpointConfig.dataPath()); |
| } |
| // Add JSON configuration from Storage plugin, if present. |
| org.apache.drill.exec.store.http.HttpJsonOptions jsonOptions = endpointConfig.jsonOptions(); |
| if (jsonOptions != null) { |
| // Add options from endpoint configuration to jsonLoader |
| org.apache.drill.exec.store.easy.json.loader.JsonLoaderOptions jsonLoaderOptions = jsonOptions.getJsonOptions(options); |
| jsonLoaderBuilder.options(jsonLoaderOptions); |
| |
| // Add provided schema if present |
| if (jsonOptions.schema() != null) { |
| logger.debug("Found schema: {}", jsonOptions.schema()); |
| jsonLoaderBuilder.providedSchema(jsonOptions.schema()); |
| } |
| } |
| } |
| return (org.apache.drill.exec.store.easy.json.loader.JsonLoaderImpl) jsonLoaderBuilder.build(); |
| } |
| } |