itsvikramagr commented on a change in pull request #24922: [SPARK-28120][SS] Rocksdb state storage implementation URL: https://github.com/apache/spark/pull/24922#discussion_r300931754
########## File path: core/src/main/java/org/apache/spark/io/FileUtility.java ########## @@ -0,0 +1,102 @@ +/* + * Licensed 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.spark.io; + +import org.apache.commons.compress.archivers.ArchiveException; +import org.apache.commons.compress.archivers.ArchiveStreamFactory; +import org.apache.commons.compress.archivers.tar.TarArchiveEntry; +import org.apache.commons.compress.archivers.tar.TarArchiveInputStream; +import org.apache.commons.compress.archivers.tar.TarArchiveOutputStream; +import org.apache.commons.compress.utils.IOUtils; + +import java.io.*; + +public class FileUtility { + + /** + * Untar an input file into an output file. + * + * The output file is created in the output folder, having the same name as + * the input file, minus the '.tar' extension. + * + * @param inputFile the input .tar file + * @throws IOException + * + * @throws ArchiveException + */ + public static void unTar(final File inputFile) + throws IOException, ArchiveException { + + String outputDir = inputFile.getAbsolutePath().split(".tar")[0]; + File outputTarDir = new File(outputDir); + outputTarDir.mkdir(); + final InputStream is = new FileInputStream(inputFile); + final TarArchiveInputStream debInputStream = (TarArchiveInputStream) new ArchiveStreamFactory().createArchiveInputStream( + "tar", is); + TarArchiveEntry entry = null; + while ((entry = (TarArchiveEntry) debInputStream.getNextEntry()) != null) { + final File outputFile = new File(outputDir, entry.getName()); + if (entry.isDirectory()) { + if (!outputFile.exists()) { + if (!outputFile.mkdirs()) { + throw new IllegalStateException(String.format( + "Couldn't create directory %s.", outputFile.getAbsolutePath())); + } + } + } else { + final OutputStream outputFileStream = new FileOutputStream(outputFile); + IOUtils.copy(debInputStream, outputFileStream); + outputFileStream.close(); + } + } + debInputStream.close(); Review comment: Sure. I have made the changes. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected] With regards, Apache Git Services --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
