wwj6591812 commented on code in PR #3287: URL: https://github.com/apache/paimon/pull/3287#discussion_r1598408822
########## paimon-core/src/main/java/org/apache/paimon/operation/PickFilesUtil.java: ########## @@ -0,0 +1,184 @@ +/* + * 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.paimon.operation; + +import org.apache.paimon.Snapshot; +import org.apache.paimon.fs.Path; +import org.apache.paimon.index.IndexFileHandler; +import org.apache.paimon.manifest.IndexManifestEntry; +import org.apache.paimon.manifest.ManifestFileMeta; +import org.apache.paimon.manifest.ManifestList; +import org.apache.paimon.schema.SchemaManager; +import org.apache.paimon.utils.FileStorePathFactory; +import org.apache.paimon.utils.SnapshotManager; + +import javax.annotation.Nullable; + +import java.io.FileNotFoundException; +import java.io.IOException; +import java.util.ArrayList; +import java.util.Collections; +import java.util.List; +import java.util.concurrent.TimeUnit; +import java.util.stream.Collectors; + +/** PickFilesUtil. */ +public class PickFilesUtil { + + private static final int READ_FILE_RETRY_NUM = 3; + private static final int READ_FILE_RETRY_INTERVAL = 5; + + public static List<Path> getUsedFilesForSnapshot( + Snapshot snapshot, + SnapshotManager snapshotManager, + FileStorePathFactory pathFactory, + FileStoreScan scan, + ManifestList manifestList, + SchemaManager schemaManager, + IndexFileHandler indexFileHandler) { + List<Path> files = new ArrayList<>(); + if (snapshot != null) { + files.add(snapshotManager.snapshotPath(snapshot.id())); + files.addAll( + getUsedFilesInternal( + snapshot, pathFactory, scan, manifestList, indexFileHandler)); + } + for (long id : schemaManager.listAllIds()) { + files.add(schemaManager.toSchemaPath(id)); + } + return files; + } + + private static List<Path> getUsedFilesInternal( + Snapshot snapshot, + FileStorePathFactory pathFactory, + FileStoreScan scan, + ManifestList manifestList, + IndexFileHandler indexFileHandler) { + List<Path> files = new ArrayList<>(); + addManifestList(files, snapshot, pathFactory); + + try { + // try to read manifests + List<ManifestFileMeta> manifestFileMetas = + retryReadingFiles( + () -> readAllManifestsWithIOException(snapshot, manifestList)); + if (manifestFileMetas == null) { + return Collections.emptyList(); + } + List<String> manifestFileName = + manifestFileMetas.stream() + .map(ManifestFileMeta::fileName) + .collect(Collectors.toList()); + files.addAll( + manifestFileName.stream() + .map(pathFactory::toManifestFilePath) + .collect(Collectors.toList())); + + // try to read data files + List<Path> dataFiles = + scan.withSnapshot(snapshot).readSimpleEntries().stream() + .map( + f -> + pathFactory + .createDataFilePathFactory( + f.partition(), f.bucket()) + .toPath(f.fileName())) + .collect(Collectors.toList()); + Collections.reverse(dataFiles); + files.addAll(dataFiles); + + // try to read index files + String indexManifest = snapshot.indexManifest(); + if (indexManifest != null && indexFileHandler.existsManifest(indexManifest)) { + files.add(pathFactory.indexManifestFileFactory().toPath(indexManifest)); + + List<IndexManifestEntry> indexManifestEntries = + retryReadingFiles( + () -> indexFileHandler.readManifestWithIOException(indexManifest)); + if (indexManifestEntries == null) { + return Collections.emptyList(); + } + + indexManifestEntries.stream() + .map(IndexManifestEntry::indexFile) + .map(indexFileHandler::filePath) + .forEach(files::add); + } + + // add statistic file + if (snapshot.statistics() != null) { + files.add(pathFactory.statsFileFactory().toPath(snapshot.statistics())); + } + } catch (IOException e) { + throw new RuntimeException(e); + } + + return files; + } + + private static void addManifestList( + List<Path> used, Snapshot snapshot, FileStorePathFactory pathFactory) { + used.add(pathFactory.toManifestListPath(snapshot.baseManifestList())); + used.add(pathFactory.toManifestListPath(snapshot.deltaManifestList())); + String changelogManifestList = snapshot.changelogManifestList(); + if (changelogManifestList != null) { + used.add(pathFactory.toManifestListPath(changelogManifestList)); + } + } + + private static List<ManifestFileMeta> readAllManifestsWithIOException( + Snapshot snapshot, ManifestList manifestList) throws IOException { + List<ManifestFileMeta> result = new ArrayList<>(); + + result.addAll(manifestList.readWithIOException(snapshot.baseManifestList())); + result.addAll(manifestList.readWithIOException(snapshot.deltaManifestList())); + + String changelogManifestList = snapshot.changelogManifestList(); + if (changelogManifestList != null) { + result.addAll(manifestList.readWithIOException(changelogManifestList)); + } + + return result; + } + + @Nullable + private static <T> T retryReadingFiles(OrphanFilesClean.ReaderWithIOException<T> reader) Review Comment: done ########## paimon-core/src/main/java/org/apache/paimon/clone/CopyFileUtils.java: ########## @@ -0,0 +1,61 @@ +/* + * 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.paimon.clone; + +import org.apache.paimon.fs.FileIO; +import org.apache.paimon.fs.Path; +import org.apache.paimon.utils.IOUtils; + +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import java.io.IOException; + +/** Utility class for copy file. */ +public class CopyFileUtils { + + private static final Logger LOG = LoggerFactory.getLogger(CopyFileUtils.class); + + public static void copyFile( Review Comment: done -- This is an automated message from the Apache Git Service. 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