npawar commented on a change in pull request #6354: URL: https://github.com/apache/incubator-pinot/pull/6354#discussion_r546990341
########## File path: pinot-controller/src/main/java/org/apache/pinot/controller/util/FileIngestionUtils.java ########## @@ -0,0 +1,186 @@ +/** + * 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.pinot.controller.util; + +import com.fasterxml.jackson.databind.JsonNode; +import com.fasterxml.jackson.databind.ObjectMapper; +import com.google.common.base.Preconditions; +import java.io.File; +import java.io.FileInputStream; +import java.io.FileOutputStream; +import java.io.IOException; +import java.io.InputStream; +import java.io.OutputStream; +import java.net.URI; +import java.util.Collections; +import java.util.HashMap; +import java.util.List; +import java.util.Map; +import org.apache.commons.io.IOUtils; +import org.apache.pinot.common.exception.HttpErrorStatusException; +import org.apache.pinot.common.utils.FileUploadDownloadClient; +import org.apache.pinot.common.utils.SimpleHttpResponse; +import org.apache.pinot.core.indexsegment.generator.SegmentGeneratorConfig; +import org.apache.pinot.core.segment.creator.impl.SegmentIndexCreationDriverImpl; +import org.apache.pinot.core.segment.name.SimpleSegmentNameGenerator; +import org.apache.pinot.spi.config.table.TableConfig; +import org.apache.pinot.spi.data.Schema; +import org.apache.pinot.spi.data.readers.FileFormat; +import org.apache.pinot.spi.data.readers.RecordReaderConfig; +import org.apache.pinot.spi.data.readers.RecordReaderFactory; +import org.apache.pinot.spi.filesystem.PinotFSFactory; +import org.apache.pinot.spi.ingestion.batch.BatchConfig; +import org.apache.pinot.spi.plugin.PluginManager; +import org.apache.pinot.spi.utils.IngestionConfigUtils; +import org.apache.pinot.spi.utils.JsonUtils; +import org.apache.pinot.spi.utils.retry.AttemptsExceededException; +import org.apache.pinot.spi.utils.retry.RetriableOperationException; +import org.apache.pinot.spi.utils.retry.RetryPolicies; +import org.glassfish.jersey.media.multipart.FormDataBodyPart; +import org.glassfish.jersey.media.multipart.FormDataMultiPart; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + + +/** + * Helper methods for ingestion from file + */ +public final class FileIngestionUtils { + + private static final Logger LOGGER = LoggerFactory.getLogger(FileIngestionUtils.class); + private static final long DEFAULT_RETRY_WAIT_MS = 1000L; + private static final int DEFAULT_ATTEMPTS = 3; + private static final FileUploadDownloadClient FILE_UPLOAD_DOWNLOAD_CLIENT = new FileUploadDownloadClient(); + + private FileIngestionUtils() { + } + + /** + * Copy the file from given URI to local file + */ + public static void copyURIToLocal(BatchConfig batchConfig, URI sourceFileURI, File destFile) + throws Exception { + String sourceFileURIScheme = sourceFileURI.getScheme(); + if (!PinotFSFactory.isSchemeSupported(sourceFileURIScheme)) { + PinotFSFactory.register(sourceFileURIScheme, batchConfig.getInputFsClassName(), + IngestionConfigUtils.getFsProps(batchConfig.getInputFsProps())); + } + PinotFSFactory.create(sourceFileURIScheme).copyToLocalFile(sourceFileURI, destFile); + } + + /** + * Copy the file from the uploaded multipart to a local file + */ + public static void copyMultipartToLocal(FormDataMultiPart multiPart, File destFile) + throws IOException { + FormDataBodyPart formDataBodyPart = multiPart.getFields().values().iterator().next().get(0); + try (InputStream inputStream = formDataBodyPart.getValueAs(InputStream.class); + OutputStream outputStream = new FileOutputStream(destFile)) { + IOUtils.copyLarge(inputStream, outputStream); + } finally { + multiPart.cleanup(); + } + } + + /** + * Creates a {@link SegmentGeneratorConfig} + * @param tableConfig Table config + * @param batchConfig Batch config override provided by the user during upload + * @param schema Table schema + * @param inputFile The input file + * @param outputSegmentDir The output dir + */ + public static SegmentGeneratorConfig generateSegmentGeneratorConfig(TableConfig tableConfig, BatchConfig batchConfig, + Schema schema, File inputFile, File outputSegmentDir) + throws ClassNotFoundException, IOException { + SegmentGeneratorConfig segmentGeneratorConfig = new SegmentGeneratorConfig(tableConfig, schema); + segmentGeneratorConfig.setTableName(tableConfig.getTableName()); + segmentGeneratorConfig.setOutDir(outputSegmentDir.getAbsolutePath()); + segmentGeneratorConfig.setInputFilePath(inputFile.getAbsolutePath()); + + FileFormat fileFormat = batchConfig.getInputFormat(); + segmentGeneratorConfig.setFormat(fileFormat); + segmentGeneratorConfig.setRecordReaderPath(RecordReaderFactory.getRecordReaderClassName(fileFormat.toString())); + String readerConfigClassName = RecordReaderFactory.getRecordReaderConfigClassName(fileFormat.toString()); + if (readerConfigClassName != null) { Review comment: done ---------------------------------------------------------------- This is an automated message from the Apache Git Service. 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