nfsantos commented on code in PR #728: URL: https://github.com/apache/jackrabbit-oak/pull/728#discussion_r989789413
########## oak-run/src/main/java/org/apache/jackrabbit/oak/run/DataStoreCopyCommand.java: ########## @@ -0,0 +1,162 @@ +/* + * 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.jackrabbit.oak.run; + +import joptsimple.OptionParser; +import joptsimple.OptionSet; +import joptsimple.OptionSpec; +import joptsimple.OptionSpecBuilder; +import org.apache.jackrabbit.oak.commons.IOUtils; +import org.apache.jackrabbit.oak.run.commons.Command; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import java.io.File; +import java.nio.charset.StandardCharsets; +import java.nio.file.Files; +import java.util.Arrays; +import java.util.List; +import java.util.Map; +import java.util.concurrent.TimeUnit; +import java.util.stream.Collectors; + +import static com.google.common.base.StandardSystemProperty.FILE_SEPARATOR; + +/** + * Command to concurrently download blobs from an azure datastore using sas token authentication. + * <p> + * Blobs are stored in a specific folder following the datastore structure format. + */ +public class DataStoreCopyCommand implements Command { + + private static final Logger LOG = LoggerFactory.getLogger(DataStoreCopyCommand.class); + + private String sourceRepo; + private String includePath; + private File fileIncludePath; + private String sasToken; + private String outDir; + private int concurrency; + + @Override + public void execute(String... args) throws Exception { + parseCommandLineParams(args); + + List<String> ids; + if (fileIncludePath != null) { + if (fileIncludePath.isDirectory() || !fileIncludePath.exists()) { + throw new IllegalArgumentException("file-include-path must be a valid file"); + } + ids = org.apache.commons.io.IOUtils.readLines(Files.newInputStream(fileIncludePath.toPath()), StandardCharsets.UTF_8); + } else { + ids = Arrays.stream(includePath.split(";")).collect(Collectors.toList()); + } + if (ids.isEmpty()) { + throw new IllegalArgumentException("Blob ids must be specified"); + } + + try (Downloader downloader = new Downloader(concurrency)) { + long start = System.currentTimeMillis(); + List<Downloader.ItemResponse> responses = downloader.download(ids.stream().map(id -> { Review Comment: I don't think it is currently showing the number of bytes remaining to transfer, I did not find that logic in the code. And to implement a global progress report showing bytes remaining, wouldn't it be necessary to discover the size of the blobs by making calls to the blobstore to get the metadata of every blob? So we would have the same problem as azcopy. -- 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. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
