/* * 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.hudi.common.table.timeline.dto; import org.apache.hudi.exception.HoodieException; import com.fasterxml.jackson.annotation.JsonIgnoreProperties; import com.fasterxml.jackson.annotation.JsonProperty; import org.apache.hadoop.fs.FileStatus; import java.io.IOException; /** * The data transfer object of file status. */ @JsonIgnoreProperties(ignoreUnknown = true) public class FileStatusDTO { @JsonProperty("path") FilePathDTO path; @JsonProperty("length") long length; @JsonProperty("isdir") boolean isdir; @JsonProperty("blockReplication") short blockReplication; @JsonProperty("blocksize") long blocksize; @JsonProperty("modificationTime") long modificationTime; @JsonProperty("accessTime") long accessTime; @JsonProperty("permission") FSPermissionDTO permission; @JsonProperty("owner") String owner; @JsonProperty("group") String group; @JsonProperty("symlink") FilePathDTO symlink; public static FileStatusDTO fromFileStatus(FileStatus fileStatus) { if (null == fileStatus) { return null; } FileStatusDTO dto = new FileStatusDTO(); try { dto.path = FilePathDTO.fromPath(fileStatus.getPath()); dto.length = fileStatus.getLen(); dto.isdir = fileStatus.isDirectory(); dto.blockReplication = fileStatus.getReplication(); dto.blocksize = fileStatus.getBlockSize(); dto.modificationTime = fileStatus.getModificationTime(); dto.accessTime = fileStatus.getModificationTime(); dto.symlink = fileStatus.isSymlink() ? FilePathDTO.fromPath(fileStatus.getSymlink()) : null; safeReadAndSetMetadata(dto, fileStatus); } catch (IOException ioe) { throw new HoodieException(ioe); } return dto; } /** * Used to safely handle FileStatus calls which might fail on some FileSystem implementation. * (DeprecatedLocalFileSystem) */ private static void safeReadAndSetMetadata(FileStatusDTO dto, FileStatus fileStatus) { try { dto.owner = fileStatus.getOwner(); dto.group = fileStatus.getGroup(); dto.permission = FSPermissionDTO.fromFsPermission(fileStatus.getPermission()); } catch (IllegalArgumentException ie) { // Deprecated File System (testing) does not work well with this call // skipping } } public static FileStatus toFileStatus(FileStatusDTO dto) { if (null == dto) { return null; } return new FileStatus(dto.length, dto.isdir, dto.blockReplication, dto.blocksize, dto.modificationTime, dto.accessTime, FSPermissionDTO.fromFsPermissionDTO(dto.permission), dto.owner, dto.group, FilePathDTO.toPath(dto.symlink), FilePathDTO.toPath(dto.path)); } }