jihoonson commented on a change in pull request #8257: Add support for parallel native indexing with shuffle for perfect rollup URL: https://github.com/apache/incubator-druid/pull/8257#discussion_r314482581
########## File path: core/src/main/java/org/apache/druid/data/input/impl/prefetch/Fetchers.java ########## @@ -0,0 +1,81 @@ +/* + * 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.druid.data.input.impl.prefetch; + +import com.google.common.base.Predicate; +import org.apache.commons.io.IOUtils; +import org.apache.druid.java.util.common.RetryUtils; + +import java.io.File; +import java.io.FileOutputStream; +import java.io.IOException; +import java.io.InputStream; +import java.io.OutputStream; + +public final class Fetchers +{ + /** + * Copies data from the given InputStream to the given file. + * This method is supposed to be used for copying large files. + * The output file is deleted automatically if copy fails. + * + * @param object object to open + * @param objectOpenFunction function to open the given object + * @param outFile file to write data + * @param fetchBuffer a buffer to copy data from the input stream to the file + * @param retryCondition condition which should be satisfied for retry + * @param numRetries max number of retries + * @param messageOnRetry log message on retry + * + * @return the number of bytes copied + */ + public static <T> long fetch( Review comment: Moved 👍 ---------------------------------------------------------------- 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: us...@infra.apache.org With regards, Apache Git Services --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@druid.apache.org For additional commands, e-mail: commits-h...@druid.apache.org