| /** |
| * 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.hadoop.hdfs.tools.offlineImageViewer; |
| |
| import static org.junit.Assert.assertEquals; |
| import java.io.File; |
| import java.io.IOException; |
| import java.net.HttpURLConnection; |
| import java.net.URI; |
| import java.net.URL; |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.fs.ContentSummary; |
| import org.apache.hadoop.fs.FSDataOutputStream; |
| import org.apache.hadoop.fs.FileSystem; |
| import org.apache.hadoop.fs.Path; |
| import org.apache.hadoop.hdfs.DistributedFileSystem; |
| import org.apache.hadoop.hdfs.MiniDFSCluster; |
| import org.apache.hadoop.hdfs.protocol.HdfsConstants; |
| import org.apache.hadoop.hdfs.server.namenode.FSImageTestUtil; |
| import org.apache.hadoop.hdfs.web.WebHdfsFileSystem; |
| import org.apache.hadoop.net.NetUtils; |
| import org.junit.AfterClass; |
| import org.junit.BeforeClass; |
| import org.junit.Test; |
| |
| /** |
| * Tests GETCONTENTSUMMARY operation for WebImageViewer |
| */ |
| public class TestOfflineImageViewerForContentSummary { |
| |
| private static final Log LOG = LogFactory |
| .getLog(TestOfflineImageViewerForContentSummary.class); |
| |
| private static File originalFsimage = null; |
| private static ContentSummary summaryFromDFS = null; |
| private static ContentSummary emptyDirSummaryFromDFS = null; |
| private static ContentSummary fileSummaryFromDFS = null; |
| private static ContentSummary symLinkSummaryFromDFS = null; |
| private static ContentSummary symLinkSummaryForDirContainsFromDFS=null; |
| /** |
| * Create a populated namespace for later testing. Save its contents to a |
| * data structure and store its fsimage location. We only want to generate |
| * the fsimage file once and use it for multiple tests. |
| */ |
| @BeforeClass |
| public static void createOriginalFSImage() throws IOException { |
| MiniDFSCluster cluster = null; |
| Configuration conf = new Configuration(); |
| |
| try { |
| cluster = new MiniDFSCluster.Builder(conf).build(); |
| cluster.waitActive(); |
| DistributedFileSystem hdfs = cluster.getFileSystem(); |
| Path parentDir = new Path("/parentDir"); |
| Path childDir1 = new Path(parentDir, "childDir1"); |
| Path childDir2 = new Path(parentDir, "childDir2"); |
| Path dirForLinks = new Path("/dirForLinks"); |
| hdfs.mkdirs(parentDir); |
| hdfs.mkdirs(childDir1); |
| hdfs.mkdirs(childDir2); |
| hdfs.mkdirs(dirForLinks); |
| hdfs.setQuota(parentDir, 10, 1024*1024*1024); |
| |
| Path file1OnParentDir = new Path(parentDir, "file1"); |
| try (FSDataOutputStream o = hdfs.create(file1OnParentDir)) { |
| o.write("123".getBytes()); |
| } |
| try (FSDataOutputStream o = hdfs.create(new Path(parentDir, "file2"))) { |
| o.write("1234".getBytes()); |
| } |
| try (FSDataOutputStream o = hdfs.create(new Path(childDir1, "file3"))) { |
| o.write("123".getBytes()); |
| } |
| try (FSDataOutputStream o = hdfs.create(new Path(parentDir, "file4"))) { |
| o.write("123".getBytes()); |
| } |
| Path link1 = new Path("/link1"); |
| Path link2 = new Path("/dirForLinks/linkfordir1"); |
| hdfs.createSymlink(new Path("/parentDir/file4"), link1, true); |
| summaryFromDFS = hdfs.getContentSummary(parentDir); |
| emptyDirSummaryFromDFS = hdfs.getContentSummary(childDir2); |
| fileSummaryFromDFS = hdfs.getContentSummary(file1OnParentDir); |
| symLinkSummaryFromDFS = hdfs.getContentSummary(link1); |
| hdfs.createSymlink(childDir1, link2, true); |
| symLinkSummaryForDirContainsFromDFS = hdfs.getContentSummary(new Path( |
| "/dirForLinks")); |
| // Write results to the fsimage file |
| hdfs.setSafeMode(HdfsConstants.SafeModeAction.SAFEMODE_ENTER, false); |
| hdfs.saveNamespace(); |
| // Determine the location of the fsimage file |
| originalFsimage = FSImageTestUtil.findLatestImageFile(FSImageTestUtil |
| .getFSImage(cluster.getNameNode()).getStorage().getStorageDir(0)); |
| if (originalFsimage == null) { |
| throw new RuntimeException("Didn't generate or can't find fsimage"); |
| } |
| LOG.debug("original FS image file is " + originalFsimage); |
| } finally { |
| if (cluster != null) |
| cluster.shutdown(); |
| } |
| } |
| |
| @AfterClass |
| public static void deleteOriginalFSImage() { |
| if (originalFsimage != null && originalFsimage.exists()) { |
| originalFsimage.delete(); |
| } |
| } |
| |
| @Test |
| public void testGetContentSummaryForEmptyDirectory() throws Exception { |
| try (WebImageViewer viewer = new WebImageViewer( |
| NetUtils.createSocketAddr("localhost:0"))) { |
| viewer.initServer(originalFsimage.getAbsolutePath()); |
| int port = viewer.getPort(); |
| URL url = new URL("http://localhost:" + port |
| + "/webhdfs/v1/parentDir/childDir2?op=GETCONTENTSUMMARY"); |
| HttpURLConnection connection = (HttpURLConnection) url.openConnection(); |
| connection.setRequestMethod("GET"); |
| connection.connect(); |
| assertEquals(HttpURLConnection.HTTP_OK, connection.getResponseCode()); |
| // create a WebHdfsFileSystem instance |
| URI uri = new URI("webhdfs://localhost:" + String.valueOf(port)); |
| Configuration conf = new Configuration(); |
| WebHdfsFileSystem webfs = (WebHdfsFileSystem) FileSystem.get(uri, conf); |
| ContentSummary summary = webfs.getContentSummary(new Path( |
| "/parentDir/childDir2")); |
| verifyContentSummary(emptyDirSummaryFromDFS, summary); |
| } |
| } |
| |
| @Test |
| public void testGetContentSummaryForDirectory() throws Exception { |
| try (WebImageViewer viewer = new WebImageViewer( |
| NetUtils.createSocketAddr("localhost:0"))) { |
| viewer.initServer(originalFsimage.getAbsolutePath()); |
| int port = viewer.getPort(); |
| URL url = new URL("http://localhost:" + port |
| + "/webhdfs/v1/parentDir/?op=GETCONTENTSUMMARY"); |
| HttpURLConnection connection = (HttpURLConnection) url.openConnection(); |
| connection.setRequestMethod("GET"); |
| connection.connect(); |
| assertEquals(HttpURLConnection.HTTP_OK, connection.getResponseCode()); |
| // create a WebHdfsFileSystem instance |
| URI uri = new URI("webhdfs://localhost:" + String.valueOf(port)); |
| Configuration conf = new Configuration(); |
| WebHdfsFileSystem webfs = (WebHdfsFileSystem) FileSystem.get(uri, conf); |
| ContentSummary summary = webfs.getContentSummary(new Path("/parentDir/")); |
| verifyContentSummary(summaryFromDFS, summary); |
| } |
| } |
| |
| @Test |
| public void testGetContentSummaryForFile() throws Exception { |
| try (WebImageViewer viewer = new WebImageViewer( |
| NetUtils.createSocketAddr("localhost:0"))) { |
| viewer.initServer(originalFsimage.getAbsolutePath()); |
| int port = viewer.getPort(); |
| URL url = new URL("http://localhost:" + port |
| + "/webhdfs/v1/parentDir/file1?op=GETCONTENTSUMMARY"); |
| HttpURLConnection connection = (HttpURLConnection) url.openConnection(); |
| connection.setRequestMethod("GET"); |
| connection.connect(); |
| assertEquals(HttpURLConnection.HTTP_OK, connection.getResponseCode()); |
| // create a WebHdfsFileSystem instance |
| URI uri = new URI("webhdfs://localhost:" + String.valueOf(port)); |
| Configuration conf = new Configuration(); |
| WebHdfsFileSystem webfs = (WebHdfsFileSystem) FileSystem.get(uri, conf); |
| ContentSummary summary = webfs. |
| getContentSummary(new Path("/parentDir/file1")); |
| verifyContentSummary(fileSummaryFromDFS, summary); |
| } |
| } |
| |
| @Test |
| public void testGetContentSummaryForSymlink() throws Exception { |
| try (WebImageViewer viewer = new WebImageViewer( |
| NetUtils.createSocketAddr("localhost:0"))) { |
| viewer.initServer(originalFsimage.getAbsolutePath()); |
| int port = viewer.getPort(); |
| // create a WebHdfsFileSystem instance |
| URI uri = new URI("webhdfs://localhost:" + String.valueOf(port)); |
| Configuration conf = new Configuration(); |
| WebHdfsFileSystem webfs = (WebHdfsFileSystem) FileSystem.get(uri, conf); |
| ContentSummary summary = webfs.getContentSummary(new Path("/link1")); |
| verifyContentSummary(symLinkSummaryFromDFS, summary); |
| } |
| } |
| |
| @Test |
| public void testGetContentSummaryForDirContainsSymlink() throws Exception { |
| try (WebImageViewer viewer = new WebImageViewer( |
| NetUtils.createSocketAddr("localhost:0"))) { |
| viewer.initServer(originalFsimage.getAbsolutePath()); |
| int port = viewer.getPort(); |
| // create a WebHdfsFileSystem instance |
| URI uri = new URI("webhdfs://localhost:" + String.valueOf(port)); |
| Configuration conf = new Configuration(); |
| WebHdfsFileSystem webfs = (WebHdfsFileSystem) FileSystem.get(uri, conf); |
| ContentSummary summary = webfs.getContentSummary(new Path( |
| "/dirForLinks/")); |
| verifyContentSummary(symLinkSummaryForDirContainsFromDFS, summary); |
| } |
| } |
| |
| private void verifyContentSummary(ContentSummary expected, |
| ContentSummary actual) { |
| assertEquals(expected.getDirectoryCount(), actual.getDirectoryCount()); |
| assertEquals(expected.getFileCount(), actual.getFileCount()); |
| assertEquals(expected.getLength(), actual.getLength()); |
| assertEquals(expected.getSpaceConsumed(), actual.getSpaceConsumed()); |
| assertEquals(expected.getQuota(), actual.getQuota()); |
| assertEquals(expected.getSpaceQuota(), actual.getSpaceQuota()); |
| } |
| |
| @Test |
| public void testGetContentSummaryResponseCode() throws Exception { |
| try (WebImageViewer viewer = new WebImageViewer( |
| NetUtils.createSocketAddr("localhost:0"))) { |
| viewer.initServer(originalFsimage.getAbsolutePath()); |
| int port = viewer.getPort(); |
| URL url = new URL("http://localhost:" + port |
| + "/webhdfs/v1/dir123/?op=GETCONTENTSUMMARY"); |
| HttpURLConnection connection = (HttpURLConnection) url.openConnection(); |
| connection.setRequestMethod("GET"); |
| connection.connect(); |
| assertEquals(HttpURLConnection.HTTP_NOT_FOUND, |
| connection.getResponseCode()); |
| } |
| } |
| } |