| /* |
| * 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.esri; |
| |
| import org.apache.drill.common.exceptions.ExecutionSetupException; |
| import org.apache.drill.common.logical.StoragePluginConfig; |
| import org.apache.drill.common.types.TypeProtos; |
| import org.apache.drill.common.types.Types; |
| import org.apache.drill.exec.physical.impl.scan.file.FileScanFramework; |
| import org.apache.drill.exec.physical.impl.scan.file.FileScanFramework.FileSchemaNegotiator; |
| |
| import org.apache.drill.exec.physical.impl.scan.file.FileScanFramework.FileReaderFactory; |
| import org.apache.drill.exec.physical.impl.scan.framework.ManagedReader; |
| import org.apache.drill.exec.proto.UserBitShared.CoreOperatorType; |
| import org.apache.drill.exec.server.DrillbitContext; |
| import org.apache.drill.exec.server.options.OptionManager; |
| import org.apache.drill.exec.store.dfs.easy.EasyFormatPlugin; |
| import org.apache.drill.exec.store.dfs.easy.EasySubScan; |
| import org.apache.drill.exec.store.esri.ShpBatchReader.ShpReaderConfig; |
| import org.apache.hadoop.conf.Configuration; |
| |
| import org.apache.drill.shaded.guava.com.google.common.collect.Lists; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| public class ShpFormatPlugin extends EasyFormatPlugin<ShpFormatConfig> { |
| |
| private static final Logger logger = LoggerFactory.getLogger(ShpFormatPlugin.class); |
| |
| public static final String PLUGIN_NAME = "shp"; |
| |
| public static class ShpReaderFactory extends FileReaderFactory { |
| private final ShpReaderConfig readerConfig; |
| |
| public ShpReaderFactory(ShpReaderConfig config) { |
| readerConfig = config; |
| } |
| |
| @Override |
| public ManagedReader<? extends FileScanFramework.FileSchemaNegotiator> newReader() { |
| return new ShpBatchReader(readerConfig); |
| } |
| } |
| |
| public ShpFormatPlugin(String name, DrillbitContext context, Configuration fsConf, StoragePluginConfig storageConfig, ShpFormatConfig formatConfig) { |
| super(name, easyConfig(fsConf, formatConfig), context, storageConfig, formatConfig); |
| } |
| |
| @Override |
| public ManagedReader<? extends FileSchemaNegotiator> newBatchReader(EasySubScan scan, OptionManager options) throws ExecutionSetupException { |
| return new ShpBatchReader(formatConfig.getReaderConfig(this)); |
| } |
| |
| @Override |
| protected FileScanFramework.FileScanBuilder frameworkBuilder(OptionManager options, EasySubScan scan) { |
| FileScanFramework.FileScanBuilder builder = new FileScanFramework.FileScanBuilder(); |
| builder.setReaderFactory(new ShpReaderFactory(new ShpReaderConfig(this))); |
| initScanBuilder(builder, scan); |
| builder.setNullType(Types.optional(TypeProtos.MinorType.VARCHAR)); |
| return builder; |
| } |
| |
| private static EasyFormatConfig easyConfig(Configuration fsConf, ShpFormatConfig pluginConfig) { |
| EasyFormatConfig config = new EasyFormatConfig(); |
| config.readable = true; |
| config.writable = false; |
| config.blockSplittable = false; |
| config.compressible = false; |
| config.supportsProjectPushdown = true; |
| config.extensions = Lists.newArrayList(pluginConfig.getExtensions()); |
| config.fsConf = fsConf; |
| config.defaultName = PLUGIN_NAME; |
| config.readerOperatorType = CoreOperatorType.SHP_SUB_SCAN_VALUE; |
| config.useEnhancedScan = true; |
| return config; |
| } |
| } |