sumangala-patki commented on a change in pull request #2549: URL: https://github.com/apache/hadoop/pull/2549#discussion_r696894597
########## File path: hadoop-tools/hadoop-azure/src/test/java/org/apache/hadoop/fs/azurebfs/services/TestGetContentSummary.java ########## @@ -0,0 +1,227 @@ +/** + * 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 + * <p> + * http://www.apache.org/licenses/LICENSE-2.0 + * <p> + * 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.hadoop.fs.azurebfs.services; + +import java.io.IOException; +import java.util.ArrayList; +import java.util.List; +import java.util.Random; +import java.util.concurrent.CompletionService; +import java.util.concurrent.ExecutionException; +import java.util.concurrent.ExecutorCompletionService; +import java.util.concurrent.ExecutorService; +import java.util.concurrent.Executors; +import java.util.concurrent.Future; +import java.util.concurrent.SynchronousQueue; +import java.util.concurrent.ThreadPoolExecutor; +import java.util.concurrent.TimeUnit; + +import org.apache.hadoop.fs.azurebfs.constants.FSOperationType; +import org.apache.hadoop.fs.azurebfs.utils.TracingHeaderValidator; +import org.assertj.core.api.Assertions; +import org.junit.Test; + +import org.apache.hadoop.fs.ContentSummary; +import org.apache.hadoop.fs.FSDataOutputStream; +import org.apache.hadoop.fs.Path; +import org.apache.hadoop.fs.azurebfs.AbstractAbfsIntegrationTest; +import org.apache.hadoop.fs.azurebfs.AzureBlobFileSystem; + +import static org.apache.hadoop.fs.azurebfs.constants.FileSystemConfigurations.DEFAULT_AZURE_LIST_MAX_RESULTS; +import static org.apache.hadoop.test.LambdaTestUtils.intercept; + +public class TestGetContentSummary extends AbstractAbfsIntegrationTest { + + private static final int TEST_BUFFER_SIZE = 20; + private static final int FILES_PER_DIRECTORY = 2; + private static final int MAX_THREADS = 16; + private static final int NUM_FILES_FOR_LIST_MAX_TEST = + DEFAULT_AZURE_LIST_MAX_RESULTS + 10; +private static final int NUM_CONCURRENT_CALLS = 8; + + private final String[] directories = {"/testFolder", + "/testFolderII", + "/testFolder/testFolder1", + "/testFolder/testFolder2", + "/testFolder/testFolder3", + "/testFolder/testFolder2/testFolder4", + "/testFolder/testFolder2/testFolder5", + "/testFolder/testFolder3/testFolder6", + "/testFolder/testFolder3/testFolder7"}; + + private final byte[] b = new byte[TEST_BUFFER_SIZE]; + + public TestGetContentSummary() throws Exception { + new Random().nextBytes(b); + } + + @Test + public void testFilesystemRoot() + throws IOException, ExecutionException, InterruptedException { + AzureBlobFileSystem fs = getFileSystem(); + createDirectoryStructure(); + int fileCount = directories.length * FILES_PER_DIRECTORY; + ContentSummary contentSummary = fs.getContentSummary(new Path("/")); + verifyContentSummary(contentSummary, directories.length, fileCount, + directories.length * TEST_BUFFER_SIZE); + } + + @Test + public void testFileContentSummary() throws IOException { + AzureBlobFileSystem fs = getFileSystem(); + fs.mkdirs(new Path("/testFolder")); + Path filePath = new Path("/testFolder/testFile"); + fs.create(filePath); + FSDataOutputStream out = fs.append(filePath); + out.write(b); + out.close(); + ContentSummary contentSummary = fs.getContentSummary(filePath); + verifyContentSummary(contentSummary, 0, 1, TEST_BUFFER_SIZE); + } + + @Test + public void testLeafDir() throws IOException { + AzureBlobFileSystem fs = getFileSystem(); + fs.mkdirs(new Path("/testFolder")); + fs.mkdirs(new Path("/testFolder/testFolder1")); + fs.mkdirs(new Path("/testFolder/testFolder2")); + Path leafDir = new Path("/testFolder/testFolder1/testFolder3"); + fs.mkdirs(leafDir); + ContentSummary contentSummary = fs.getContentSummary(leafDir); + verifyContentSummary(contentSummary, 0, 0, 0); + } + + @Test + public void testIntermediateDirWithFilesOnly() + throws IOException, ExecutionException, InterruptedException { + AzureBlobFileSystem fs = getFileSystem(); + fs.mkdirs(new Path("/testFolder")); + Path intermediateDir = new Path("/testFolder/testFolder1"); + fs.mkdirs(intermediateDir); + populateDirWithFiles(intermediateDir, FILES_PER_DIRECTORY); + ContentSummary contentSummary = + fs.getContentSummary(intermediateDir); + verifyContentSummary(contentSummary, 0, FILES_PER_DIRECTORY, + TEST_BUFFER_SIZE); + } + + @Test + public void testIntermediateDirWithFilesAndSubdirs() + throws IOException, ExecutionException, InterruptedException { + AzureBlobFileSystem fs = getFileSystem(); + fs.mkdirs(new Path("/testFolder")); + Path intermediateDir = new Path("/testFolder/testFolder1"); + fs.mkdirs(intermediateDir); + populateDirWithFiles(intermediateDir, FILES_PER_DIRECTORY); + fs.mkdirs(new Path("/testFolder/testFolder1/testFolder3")); + fs.registerListener( + new TracingHeaderValidator(getConfiguration().getClientCorrelationId(), + fs.getFileSystemId(), FSOperationType.GET_CONTENT_SUMMARY, true, + 0)); + ContentSummary contentSummary = + fs.getContentSummary(intermediateDir); + verifyContentSummary(contentSummary, 1, FILES_PER_DIRECTORY, + TEST_BUFFER_SIZE); + } + + @Test + public void testDirOverListMaxResultsItems() + throws IOException, ExecutionException, InterruptedException { + AzureBlobFileSystem fs = getFileSystem(); + fs.mkdirs(new Path("/testFolder")); + Path pathToListMaxDir = new Path("/testFolder/listMaxDir"); + fs.mkdirs(pathToListMaxDir); + fs.mkdirs(new Path(pathToListMaxDir + "/testFolder2")); + populateDirWithFiles(pathToListMaxDir, NUM_FILES_FOR_LIST_MAX_TEST); + verifyContentSummary( + fs.getContentSummary(pathToListMaxDir), 1, + NUM_FILES_FOR_LIST_MAX_TEST, TEST_BUFFER_SIZE); + } + + @Test + public void testInvalidPath() throws Exception { + AzureBlobFileSystem fs = getFileSystem(); + intercept(IOException.class, () -> fs.getContentSummary(new Path( + "/nonExistentPath"))); + } + + @Test + public void testConcurrentGetContentSummaryCalls() + throws InterruptedException, ExecutionException, IOException { + AzureBlobFileSystem fs = getFileSystem(); + ExecutorService executorService = new ThreadPoolExecutor(1, MAX_THREADS, 5, + TimeUnit.SECONDS, new SynchronousQueue<>()); + CompletionService<ContentSummary> completionService = + new ExecutorCompletionService<>(executorService); + createDirectoryStructure(); + for (int i = 0; i < NUM_CONCURRENT_CALLS; i++) { + completionService.submit(() -> fs.getContentSummary(new Path( + "/testFolder"))); + } + for (int i = 0; i < NUM_CONCURRENT_CALLS; i++) { + ContentSummary contentSummary = completionService.take().get(); + verifyContentSummary(contentSummary, 7, 8 * FILES_PER_DIRECTORY, + 8 * TEST_BUFFER_SIZE); + } + executorService.shutdown(); + } + + private void verifyContentSummary(ContentSummary contentSummary, + long expectedDirectoryCount, long expectedFileCount, long expectedByteCount) { + Assertions.assertThat(contentSummary.getDirectoryCount()) + .describedAs("Incorrect directory count").isEqualTo(expectedDirectoryCount); + Assertions.assertThat(contentSummary.getFileCount()) + .describedAs("Incorrect file count").isEqualTo(expectedFileCount); + Assertions.assertThat(contentSummary.getLength()) + .describedAs("Incorrect length").isEqualTo(expectedByteCount); + Assertions.assertThat(contentSummary.getSpaceConsumed()) + .describedAs("Incorrect value of space consumed").isEqualTo(expectedByteCount); + } + + private void createDirectoryStructure() + throws IOException, ExecutionException, InterruptedException { + AzureBlobFileSystem fs = getFileSystem(); + for (String directory : directories) { + Path dirPath = new Path(directory); + fs.mkdirs(dirPath); + populateDirWithFiles(dirPath, FILES_PER_DIRECTORY); + } + } + + private void populateDirWithFiles(Path directory, int numFiles) + throws ExecutionException, InterruptedException, IOException { + final List<Future<Void>> tasks = new ArrayList<>(); + ExecutorService es = Executors.newFixedThreadPool(10); + for (int i = 0; i < numFiles; i++) { + final Path fileName = new Path(directory + "/test" + i); Review comment: done -- This is an automated message from the Apache Git Service. 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