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Posted to common-commits@hadoop.apache.org by cn...@apache.org on 2016/01/18 18:22:12 UTC
[3/6] hadoop git commit: HADOOP-12635. Adding Append API support for
WASB. Contributed by Dushyanth.
http://git-wip-us.apache.org/repos/asf/hadoop/blob/62d61662/hadoop-tools/hadoop-azure/src/test/java/org/apache/hadoop/fs/azure/TestNativeAzureFileSystemAppend.java
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diff --git a/hadoop-tools/hadoop-azure/src/test/java/org/apache/hadoop/fs/azure/TestNativeAzureFileSystemAppend.java b/hadoop-tools/hadoop-azure/src/test/java/org/apache/hadoop/fs/azure/TestNativeAzureFileSystemAppend.java
new file mode 100644
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--- /dev/null
+++ b/hadoop-tools/hadoop-azure/src/test/java/org/apache/hadoop/fs/azure/TestNativeAzureFileSystemAppend.java
@@ -0,0 +1,362 @@
+/**
+ * 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.fs.azure;
+
+import java.io.IOException;
+import java.net.URI;
+import java.util.Arrays;
+
+import org.apache.commons.lang.RandomStringUtils;
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.FSDataInputStream;
+import org.apache.hadoop.fs.FSDataOutputStream;
+import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.test.GenericTestUtils;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+
+public class TestNativeAzureFileSystemAppend extends NativeAzureFileSystemBaseTest {
+
+ private static final String TEST_FILE = "test.dat";
+ private static final Path TEST_PATH = new Path(TEST_FILE);
+
+ private AzureBlobStorageTestAccount testAccount = null;
+
+ @Before
+ public void setUp() throws Exception {
+ super.setUp();
+ testAccount = createTestAccount();
+ fs = testAccount.getFileSystem();
+ Configuration conf = fs.getConf();
+ conf.setBoolean(NativeAzureFileSystem.APPEND_SUPPORT_ENABLE_PROPERTY_NAME, true);
+ URI uri = fs.getUri();
+ fs.initialize(uri, conf);
+ }
+
+ /*
+ * Helper method that creates test data of size provided by the
+ * "size" parameter.
+ */
+ private static byte[] getTestData(int size) {
+ byte[] testData = new byte[size];
+ System.arraycopy(RandomStringUtils.randomAlphabetic(size).getBytes(), 0, testData, 0, size);
+ return testData;
+ }
+
+ // Helper method to create file and write fileSize bytes of data on it.
+ private byte[] createBaseFileWithData(int fileSize, Path testPath) throws Throwable {
+
+ FSDataOutputStream createStream = null;
+ try {
+ createStream = fs.create(testPath);
+ byte[] fileData = null;
+
+ if (fileSize != 0) {
+ fileData = getTestData(fileSize);
+ createStream.write(fileData);
+ }
+ return fileData;
+ } finally {
+ if (createStream != null) {
+ createStream.close();
+ }
+ }
+ }
+
+ /*
+ * Helper method to verify a file data equal to "dataLength" parameter
+ */
+ private boolean verifyFileData(int dataLength, byte[] testData, int testDataIndex,
+ FSDataInputStream srcStream) {
+
+ try {
+
+ byte[] fileBuffer = new byte[dataLength];
+ byte[] testDataBuffer = new byte[dataLength];
+
+ int fileBytesRead = srcStream.read(fileBuffer);
+
+ if (fileBytesRead < dataLength) {
+ return false;
+ }
+
+ System.arraycopy(testData, testDataIndex, testDataBuffer, 0, dataLength);
+
+ if (!Arrays.equals(fileBuffer, testDataBuffer)) {
+ return false;
+ }
+
+ return true;
+
+ } catch (Exception ex) {
+ return false;
+ }
+
+ }
+
+ /*
+ * Helper method to verify Append on a testFile.
+ */
+ private boolean verifyAppend(byte[] testData, Path testFile) {
+
+ FSDataInputStream srcStream = null;
+ try {
+
+ srcStream = fs.open(testFile);
+ int baseBufferSize = 2048;
+ int testDataSize = testData.length;
+ int testDataIndex = 0;
+
+ while (testDataSize > baseBufferSize) {
+
+ if (!verifyFileData(baseBufferSize, testData, testDataIndex, srcStream)) {
+ return false;
+ }
+ testDataIndex += baseBufferSize;
+ testDataSize -= baseBufferSize;
+ }
+
+ if (!verifyFileData(testDataSize, testData, testDataIndex, srcStream)) {
+ return false;
+ }
+
+ return true;
+ } catch(Exception ex) {
+ return false;
+ } finally {
+ if (srcStream != null) {
+ try {
+ srcStream.close();
+ } catch(IOException ioe) {
+ // Swallowing
+ }
+ }
+ }
+ }
+
+ /*
+ * Test case to verify if an append on small size data works. This tests
+ * append E2E
+ */
+ @Test
+ public void testSingleAppend() throws Throwable{
+
+ FSDataOutputStream appendStream = null;
+ try {
+ int baseDataSize = 50;
+ byte[] baseDataBuffer = createBaseFileWithData(baseDataSize, TEST_PATH);
+
+ int appendDataSize = 20;
+ byte[] appendDataBuffer = getTestData(appendDataSize);
+ appendStream = fs.append(TEST_PATH, 10);
+ appendStream.write(appendDataBuffer);
+ appendStream.close();
+ byte[] testData = new byte[baseDataSize + appendDataSize];
+ System.arraycopy(baseDataBuffer, 0, testData, 0, baseDataSize);
+ System.arraycopy(appendDataBuffer, 0, testData, baseDataSize, appendDataSize);
+
+ Assert.assertTrue(verifyAppend(testData, TEST_PATH));
+ } finally {
+ if (appendStream != null) {
+ appendStream.close();
+ }
+ }
+ }
+
+ /*
+ * Test case to verify append to an empty file.
+ */
+ @Test
+ public void testSingleAppendOnEmptyFile() throws Throwable {
+
+ FSDataOutputStream appendStream = null;
+
+ try {
+ createBaseFileWithData(0, TEST_PATH);
+
+ int appendDataSize = 20;
+ byte[] appendDataBuffer = getTestData(appendDataSize);
+ appendStream = fs.append(TEST_PATH, 10);
+ appendStream.write(appendDataBuffer);
+ appendStream.close();
+
+ Assert.assertTrue(verifyAppend(appendDataBuffer, TEST_PATH));
+ } finally {
+ if (appendStream != null) {
+ appendStream.close();
+ }
+ }
+ }
+
+ /*
+ * Test to verify that we can open only one Append stream on a File.
+ */
+ @Test
+ public void testSingleAppenderScenario() throws Throwable {
+
+ FSDataOutputStream appendStream1 = null;
+ FSDataOutputStream appendStream2 = null;
+ IOException ioe = null;
+ try {
+ createBaseFileWithData(0, TEST_PATH);
+ appendStream1 = fs.append(TEST_PATH, 10);
+ boolean encounteredException = false;
+ try {
+ appendStream2 = fs.append(TEST_PATH, 10);
+ } catch(IOException ex) {
+ encounteredException = true;
+ ioe = ex;
+ }
+
+ appendStream1.close();
+
+ Assert.assertTrue(encounteredException);
+ GenericTestUtils.assertExceptionContains("Unable to set Append lease on the Blob", ioe);
+ } finally {
+ if (appendStream1 != null) {
+ appendStream1.close();
+ }
+
+ if (appendStream2 != null) {
+ appendStream2.close();
+ }
+ }
+ }
+
+ /*
+ * Tests to verify multiple appends on a Blob.
+ */
+ @Test
+ public void testMultipleAppends() throws Throwable {
+
+ int baseDataSize = 50;
+ byte[] baseDataBuffer = createBaseFileWithData(baseDataSize, TEST_PATH);
+
+ int appendDataSize = 100;
+ int targetAppendCount = 50;
+ byte[] testData = new byte[baseDataSize + (appendDataSize*targetAppendCount)];
+ int testDataIndex = 0;
+ System.arraycopy(baseDataBuffer, 0, testData, testDataIndex, baseDataSize);
+ testDataIndex += baseDataSize;
+
+ int appendCount = 0;
+
+ FSDataOutputStream appendStream = null;
+
+ try {
+ while (appendCount < targetAppendCount) {
+
+ byte[] appendDataBuffer = getTestData(appendDataSize);
+ appendStream = fs.append(TEST_PATH, 30);
+ appendStream.write(appendDataBuffer);
+ appendStream.close();
+
+ System.arraycopy(appendDataBuffer, 0, testData, testDataIndex, appendDataSize);
+ testDataIndex += appendDataSize;
+ appendCount++;
+ }
+
+ Assert.assertTrue(verifyAppend(testData, TEST_PATH));
+
+ } finally {
+ if (appendStream != null) {
+ appendStream.close();
+ }
+ }
+ }
+
+ /*
+ * Test to verify we multiple appends on the same stream.
+ */
+ @Test
+ public void testMultipleAppendsOnSameStream() throws Throwable {
+
+ int baseDataSize = 50;
+ byte[] baseDataBuffer = createBaseFileWithData(baseDataSize, TEST_PATH);
+ int appendDataSize = 100;
+ int targetAppendCount = 50;
+ byte[] testData = new byte[baseDataSize + (appendDataSize*targetAppendCount)];
+ int testDataIndex = 0;
+ System.arraycopy(baseDataBuffer, 0, testData, testDataIndex, baseDataSize);
+ testDataIndex += baseDataSize;
+ int appendCount = 0;
+
+ FSDataOutputStream appendStream = null;
+
+ try {
+
+ while (appendCount < targetAppendCount) {
+
+ appendStream = fs.append(TEST_PATH, 50);
+
+ int singleAppendChunkSize = 20;
+ int appendRunSize = 0;
+ while (appendRunSize < appendDataSize) {
+
+ byte[] appendDataBuffer = getTestData(singleAppendChunkSize);
+ appendStream.write(appendDataBuffer);
+ System.arraycopy(appendDataBuffer, 0, testData,
+ testDataIndex + appendRunSize, singleAppendChunkSize);
+
+ appendRunSize += singleAppendChunkSize;
+ }
+
+ appendStream.close();
+ testDataIndex += appendDataSize;
+ appendCount++;
+ }
+
+ Assert.assertTrue(verifyAppend(testData, TEST_PATH));
+ } finally {
+ if (appendStream != null) {
+ appendStream.close();
+ }
+ }
+ }
+
+ @Test(expected=UnsupportedOperationException.class)
+ /*
+ * Test to verify the behavior when Append Support configuration flag is set to false
+ */
+ public void testFalseConfigurationFlagBehavior() throws Throwable {
+
+ fs = testAccount.getFileSystem();
+ Configuration conf = fs.getConf();
+ conf.setBoolean(NativeAzureFileSystem.APPEND_SUPPORT_ENABLE_PROPERTY_NAME, false);
+ URI uri = fs.getUri();
+ fs.initialize(uri, conf);
+
+ FSDataOutputStream appendStream = null;
+
+ try {
+ createBaseFileWithData(0, TEST_PATH);
+ appendStream = fs.append(TEST_PATH, 10);
+ } finally {
+ if (appendStream != null) {
+ appendStream.close();
+ }
+ }
+ }
+
+ @Override
+ protected AzureBlobStorageTestAccount createTestAccount() throws Exception {
+ return AzureBlobStorageTestAccount.create();
+ }
+}