| /** |
| * 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.server.namenode; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertTrue; |
| import static org.junit.Assert.fail; |
| |
| import java.io.FileNotFoundException; |
| import java.io.IOException; |
| |
| import org.apache.hadoop.fs.Path; |
| import org.apache.hadoop.fs.permission.FsPermission; |
| import org.apache.hadoop.fs.permission.PermissionStatus; |
| import org.apache.hadoop.hdfs.server.blockmanagement.BlockInfo; |
| import org.junit.Test; |
| |
| public class TestINodeFile { |
| |
| static final short BLOCKBITS = 48; |
| static final long BLKSIZE_MAXVALUE = ~(0xffffL << BLOCKBITS); |
| |
| private String userName = "Test"; |
| private short replication; |
| private long preferredBlockSize; |
| |
| /** |
| * Test for the Replication value. Sets a value and checks if it was set |
| * correct. |
| */ |
| @Test |
| public void testReplication () { |
| replication = 3; |
| preferredBlockSize = 128*1024*1024; |
| INodeFile inf = new INodeFile(new PermissionStatus(userName, null, |
| FsPermission.getDefault()), null, replication, |
| 0L, 0L, preferredBlockSize); |
| assertEquals("True has to be returned in this case", replication, |
| inf.getBlockReplication()); |
| } |
| |
| /** |
| * IllegalArgumentException is expected for setting below lower bound |
| * for Replication. |
| * @throws IllegalArgumentException as the result |
| */ |
| @Test(expected=IllegalArgumentException.class) |
| public void testReplicationBelowLowerBound () |
| throws IllegalArgumentException { |
| replication = -1; |
| preferredBlockSize = 128*1024*1024; |
| new INodeFile(new PermissionStatus(userName, null, |
| FsPermission.getDefault()), null, replication, |
| 0L, 0L, preferredBlockSize); |
| } |
| |
| /** |
| * Test for the PreferredBlockSize value. Sets a value and checks if it was |
| * set correct. |
| */ |
| @Test |
| public void testPreferredBlockSize () { |
| replication = 3; |
| preferredBlockSize = 128*1024*1024; |
| INodeFile inf = new INodeFile(new PermissionStatus(userName, null, |
| FsPermission.getDefault()), null, replication, |
| 0L, 0L, preferredBlockSize); |
| assertEquals("True has to be returned in this case", preferredBlockSize, |
| inf.getPreferredBlockSize()); |
| } |
| |
| @Test |
| public void testPreferredBlockSizeUpperBound () { |
| replication = 3; |
| preferredBlockSize = BLKSIZE_MAXVALUE; |
| INodeFile inf = new INodeFile(new PermissionStatus(userName, null, |
| FsPermission.getDefault()), null, replication, |
| 0L, 0L, preferredBlockSize); |
| assertEquals("True has to be returned in this case", BLKSIZE_MAXVALUE, |
| inf.getPreferredBlockSize()); |
| } |
| |
| /** |
| * IllegalArgumentException is expected for setting below lower bound |
| * for PreferredBlockSize. |
| * @throws IllegalArgumentException as the result |
| */ |
| @Test(expected=IllegalArgumentException.class) |
| public void testPreferredBlockSizeBelowLowerBound () |
| throws IllegalArgumentException { |
| replication = 3; |
| preferredBlockSize = -1; |
| new INodeFile(new PermissionStatus(userName, null, |
| FsPermission.getDefault()), null, replication, |
| 0L, 0L, preferredBlockSize); |
| } |
| |
| /** |
| * IllegalArgumentException is expected for setting above upper bound |
| * for PreferredBlockSize. |
| * @throws IllegalArgumentException as the result |
| */ |
| @Test(expected=IllegalArgumentException.class) |
| public void testPreferredBlockSizeAboveUpperBound () |
| throws IllegalArgumentException { |
| replication = 3; |
| preferredBlockSize = BLKSIZE_MAXVALUE+1; |
| new INodeFile(new PermissionStatus(userName, null, |
| FsPermission.getDefault()), null, replication, |
| 0L, 0L, preferredBlockSize); |
| } |
| |
| @Test |
| public void testGetFullPathName() { |
| PermissionStatus perms = new PermissionStatus( |
| userName, null, FsPermission.getDefault()); |
| |
| replication = 3; |
| preferredBlockSize = 128*1024*1024; |
| INodeFile inf = new INodeFile(perms, null, replication, |
| 0L, 0L, preferredBlockSize); |
| inf.setLocalName("f"); |
| |
| INodeDirectory root = new INodeDirectory(INodeDirectory.ROOT_NAME, perms); |
| INodeDirectory dir = new INodeDirectory("d", perms); |
| |
| assertEquals("f", inf.getFullPathName()); |
| assertEquals("", inf.getLocalParentDir()); |
| |
| dir.addChild(inf, false); |
| assertEquals("d"+Path.SEPARATOR+"f", inf.getFullPathName()); |
| assertEquals("d", inf.getLocalParentDir()); |
| |
| root.addChild(dir, false); |
| assertEquals(Path.SEPARATOR+"d"+Path.SEPARATOR+"f", inf.getFullPathName()); |
| assertEquals(Path.SEPARATOR+"d", dir.getFullPathName()); |
| |
| assertEquals(Path.SEPARATOR, root.getFullPathName()); |
| assertEquals(Path.SEPARATOR, root.getLocalParentDir()); |
| |
| } |
| |
| @Test |
| public void testAppendBlocks() { |
| INodeFile origFile = createINodeFiles(1, "origfile")[0]; |
| assertEquals("Number of blocks didn't match", origFile.numBlocks(), 1L); |
| |
| INodeFile[] appendFiles = createINodeFiles(4, "appendfile"); |
| origFile.appendBlocks(appendFiles, getTotalBlocks(appendFiles)); |
| assertEquals("Number of blocks didn't match", origFile.numBlocks(), 5L); |
| } |
| |
| /** |
| * Gives the count of blocks for a given number of files |
| * @param files Array of INode files |
| * @return total count of blocks |
| */ |
| private int getTotalBlocks(INodeFile[] files) { |
| int nBlocks=0; |
| for(int i=0; i < files.length; i++) { |
| nBlocks += files[i].numBlocks(); |
| } |
| return nBlocks; |
| } |
| |
| /** |
| * Creates the required number of files with one block each |
| * @param nCount Number of INodes to create |
| * @return Array of INode files |
| */ |
| private INodeFile[] createINodeFiles(int nCount, String fileNamePrefix) { |
| if(nCount <= 0) |
| return new INodeFile[1]; |
| |
| replication = 3; |
| preferredBlockSize = 128 * 1024 * 1024; |
| INodeFile[] iNodes = new INodeFile[nCount]; |
| for (int i = 0; i < nCount; i++) { |
| PermissionStatus perms = new PermissionStatus(userName, null, |
| FsPermission.getDefault()); |
| iNodes[i] = new INodeFile(perms, null, replication, 0L, 0L, |
| preferredBlockSize); |
| iNodes[i].setLocalName(fileNamePrefix + Integer.toString(i)); |
| BlockInfo newblock = new BlockInfo(replication); |
| iNodes[i].addBlock(newblock); |
| } |
| |
| return iNodes; |
| } |
| |
| /** |
| * Test for the static {@link INodeFile#valueOf(INode, String)} |
| * and {@link INodeFileUnderConstruction#valueOf(INode, String)} methods. |
| * @throws IOException |
| */ |
| @Test |
| public void testValueOf () throws IOException { |
| final String path = "/testValueOf"; |
| final PermissionStatus perm = new PermissionStatus( |
| userName, null, FsPermission.getDefault()); |
| final short replication = 3; |
| |
| {//cast from null |
| final INode from = null; |
| |
| //cast to INodeFile, should fail |
| try { |
| INodeFile.valueOf(from, path); |
| fail(); |
| } catch(FileNotFoundException fnfe) { |
| assertTrue(fnfe.getMessage().contains("File does not exist")); |
| } |
| |
| //cast to INodeFileUnderConstruction, should fail |
| try { |
| INodeFileUnderConstruction.valueOf(from, path); |
| fail(); |
| } catch(FileNotFoundException fnfe) { |
| assertTrue(fnfe.getMessage().contains("File does not exist")); |
| } |
| |
| //cast to INodeDirectory, should fail |
| try { |
| INodeDirectory.valueOf(from, path); |
| fail(); |
| } catch(IOException ioe) { |
| assertTrue(ioe.getMessage().contains("Directory does not exist")); |
| } |
| } |
| |
| {//cast from INodeFile |
| final INode from = new INodeFile( |
| perm, null, replication, 0L, 0L, preferredBlockSize); |
| |
| //cast to INodeFile, should success |
| final INodeFile f = INodeFile.valueOf(from, path); |
| assertTrue(f == from); |
| |
| //cast to INodeFileUnderConstruction, should fail |
| try { |
| INodeFileUnderConstruction.valueOf(from, path); |
| fail(); |
| } catch(IOException ioe) { |
| assertTrue(ioe.getMessage().contains("File is not under construction")); |
| } |
| |
| //cast to INodeDirectory, should fail |
| try { |
| INodeDirectory.valueOf(from, path); |
| fail(); |
| } catch(IOException ioe) { |
| assertTrue(ioe.getMessage().contains("Path is not a directory")); |
| } |
| } |
| |
| {//cast from INodeFileUnderConstruction |
| final INode from = new INodeFileUnderConstruction( |
| perm, replication, 0L, 0L, "client", "machine", null); |
| |
| //cast to INodeFile, should success |
| final INodeFile f = INodeFile.valueOf(from, path); |
| assertTrue(f == from); |
| |
| //cast to INodeFileUnderConstruction, should success |
| final INodeFileUnderConstruction u = INodeFileUnderConstruction.valueOf( |
| from, path); |
| assertTrue(u == from); |
| |
| //cast to INodeDirectory, should fail |
| try { |
| INodeDirectory.valueOf(from, path); |
| fail(); |
| } catch(IOException ioe) { |
| assertTrue(ioe.getMessage().contains("Path is not a directory")); |
| } |
| } |
| |
| {//cast from INodeDirectory |
| final INode from = new INodeDirectory(perm, 0L); |
| |
| //cast to INodeFile, should fail |
| try { |
| INodeFile.valueOf(from, path); |
| fail(); |
| } catch(FileNotFoundException fnfe) { |
| assertTrue(fnfe.getMessage().contains("Path is not a file")); |
| } |
| |
| //cast to INodeFileUnderConstruction, should fail |
| try { |
| INodeFileUnderConstruction.valueOf(from, path); |
| fail(); |
| } catch(FileNotFoundException fnfe) { |
| assertTrue(fnfe.getMessage().contains("Path is not a file")); |
| } |
| |
| //cast to INodeDirectory, should success |
| final INodeDirectory d = INodeDirectory.valueOf(from, path); |
| assertTrue(d == from); |
| } |
| } |
| } |