svn merge -c 1467090 FIXES: HADOOP-9233. Cover package org.apache.hadoop.io.compress.zlib with unit tests. Contributed by Vadim Bondarev
git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1467099 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Jason Darrell Lowe
parent
63894e3a39
commit
d990c2f413
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@ -116,6 +116,9 @@ Release 2.0.5-beta - UNRELEASED
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HADOOP-9222. Cover package with org.apache.hadoop.io.lz4 unit tests (Vadim
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Bondarev via jlowe)
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HADOOP-9233. Cover package org.apache.hadoop.io.compress.zlib with unit
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tests (Vadim Bondarev via jlowe)
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Release 2.0.4-alpha - UNRELEASED
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INCOMPATIBLE CHANGES
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@ -1142,6 +1145,9 @@ Release 0.23.8 - UNRELEASED
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HADOOP-9222. Cover package with org.apache.hadoop.io.lz4 unit tests (Vadim
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Bondarev via jlowe)
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HADOOP-9233. Cover package org.apache.hadoop.io.compress.zlib with unit
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tests (Vadim Bondarev via jlowe)
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Release 0.23.7 - UNRELEASED
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INCOMPATIBLE CHANGES
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@ -0,0 +1,524 @@
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/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.apache.hadoop.io.compress;
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import static org.junit.Assert.assertArrayEquals;
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import static org.junit.Assert.assertEquals;
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import static org.junit.Assert.assertTrue;
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import static org.junit.Assert.fail;
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import java.io.ByteArrayInputStream;
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import java.io.ByteArrayOutputStream;
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import java.io.IOException;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.List;
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import org.apache.hadoop.conf.Configuration;
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import org.apache.hadoop.io.compress.lz4.Lz4Compressor;
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import org.apache.hadoop.io.compress.snappy.SnappyCompressor;
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import org.apache.hadoop.io.compress.zlib.BuiltInZlibDeflater;
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import org.apache.hadoop.io.compress.zlib.ZlibCompressor;
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import org.apache.hadoop.io.compress.zlib.ZlibFactory;
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import org.apache.hadoop.util.NativeCodeLoader;
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import org.apache.log4j.Logger;
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import org.junit.Assert;
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import com.google.common.base.Joiner;
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import com.google.common.collect.ImmutableList;
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import com.google.common.collect.ImmutableMap;
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import com.google.common.collect.ImmutableSet;
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import static org.junit.Assert.*;
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public class CompressDecompressTester<T extends Compressor, E extends Decompressor> {
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private static final Logger logger = Logger
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.getLogger(CompressDecompressTester.class);
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private final byte[] originalRawData;
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private ImmutableList<TesterPair<T, E>> pairs = ImmutableList.of();
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private ImmutableList.Builder<TesterPair<T, E>> builder = ImmutableList.builder();
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private ImmutableSet<CompressionTestStrategy> stateges = ImmutableSet.of();
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private PreAssertionTester<T, E> assertionDelegate;
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public CompressDecompressTester(byte[] originalRawData) {
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this.originalRawData = Arrays.copyOf(originalRawData,
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originalRawData.length);
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this.assertionDelegate = new PreAssertionTester<T, E>() {
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@Override
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public ImmutableList<TesterPair<T, E>> filterOnAssumeWhat(
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ImmutableList<TesterPair<T, E>> pairs) {
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ImmutableList.Builder<TesterPair<T, E>> builder = ImmutableList
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.builder();
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for (TesterPair<T, E> pair : pairs) {
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if (isAvailable(pair))
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builder.add(pair);
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}
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return builder.build();
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}
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};
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}
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private static boolean isNativeSnappyLoadable() {
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boolean snappyAvailable = false;
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boolean loaded = false;
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try {
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System.loadLibrary("snappy");
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logger.warn("Snappy native library is available");
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snappyAvailable = true;
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boolean hadoopNativeAvailable = NativeCodeLoader.isNativeCodeLoaded();
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loaded = snappyAvailable && hadoopNativeAvailable;
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if (loaded) {
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logger.info("Snappy native library loaded");
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} else {
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logger.warn("Snappy native library not loaded");
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}
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} catch (Throwable t) {
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logger.warn("Failed to load snappy: ", t);
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return false;
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}
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return loaded;
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}
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public static <T extends Compressor, E extends Decompressor> CompressDecompressTester<T, E> of(
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byte[] rawData) {
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return new CompressDecompressTester<T, E>(rawData);
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}
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public CompressDecompressTester<T, E> withCompressDecompressPair(
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T compressor, E decompressor) {
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addPair(
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compressor,
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decompressor,
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Joiner.on("_").join(compressor.getClass().getCanonicalName(),
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decompressor.getClass().getCanonicalName()));
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return this;
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}
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public CompressDecompressTester<T, E> withTestCases(
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ImmutableSet<CompressionTestStrategy> stateges) {
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this.stateges = ImmutableSet.copyOf(stateges);
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return this;
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}
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private void addPair(T compressor, E decompressor, String name) {
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builder.add(new TesterPair<T, E>(name, compressor, decompressor));
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}
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public void test() throws InstantiationException, IllegalAccessException {
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pairs = builder.build();
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pairs = assertionDelegate.filterOnAssumeWhat(pairs);
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for (TesterPair<T, E> pair : pairs) {
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for (CompressionTestStrategy strategy : stateges) {
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strategy.getTesterStrategy().assertCompression(pair.getName(),
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pair.getCompressor(), pair.getDecompressor(),
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Arrays.copyOf(originalRawData, originalRawData.length));
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}
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}
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endAll(pairs);
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}
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private void endAll(ImmutableList<TesterPair<T, E>> pairs) {
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for (TesterPair<T, E> pair : pairs)
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pair.end();
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}
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interface PreAssertionTester<T extends Compressor, E extends Decompressor> {
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ImmutableList<TesterPair<T, E>> filterOnAssumeWhat(
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ImmutableList<TesterPair<T, E>> pairs);
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}
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public enum CompressionTestStrategy {
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COMPRESS_DECOMPRESS_ERRORS(new TesterCompressionStrategy() {
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private final Joiner joiner = Joiner.on("- ");
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@Override
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public void assertCompression(String name, Compressor compressor,
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Decompressor decompressor, byte[] rawData) {
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assertTrue(checkSetInputNullPointerException(compressor));
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assertTrue(checkSetInputNullPointerException(decompressor));
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assertTrue(checkCompressArrayIndexOutOfBoundsException(compressor,
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rawData));
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assertTrue(checkCompressArrayIndexOutOfBoundsException(decompressor,
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rawData));
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assertTrue(checkCompressNullPointerException(compressor, rawData));
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assertTrue(checkCompressNullPointerException(decompressor, rawData));
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assertTrue(checkSetInputArrayIndexOutOfBoundsException(compressor));
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assertTrue(checkSetInputArrayIndexOutOfBoundsException(decompressor));
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}
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private boolean checkSetInputNullPointerException(Compressor compressor) {
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try {
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compressor.setInput(null, 0, 1);
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} catch (NullPointerException npe) {
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return true;
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} catch (Exception ex) {
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logger.error(joiner.join(compressor.getClass().getCanonicalName(),
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"checkSetInputNullPointerException error !!!"));
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}
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return false;
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}
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private boolean checkCompressNullPointerException(Compressor compressor,
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byte[] rawData) {
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try {
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compressor.setInput(rawData, 0, rawData.length);
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compressor.compress(null, 0, 1);
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} catch (NullPointerException npe) {
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return true;
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} catch (Exception ex) {
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logger.error(joiner.join(compressor.getClass().getCanonicalName(),
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"checkCompressNullPointerException error !!!"));
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}
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return false;
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}
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private boolean checkCompressNullPointerException(
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Decompressor decompressor, byte[] rawData) {
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try {
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decompressor.setInput(rawData, 0, rawData.length);
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decompressor.decompress(null, 0, 1);
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} catch (NullPointerException npe) {
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return true;
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} catch (Exception ex) {
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logger.error(joiner.join(decompressor.getClass().getCanonicalName(),
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"checkCompressNullPointerException error !!!"));
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}
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return false;
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}
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private boolean checkSetInputNullPointerException(
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Decompressor decompressor) {
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try {
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decompressor.setInput(null, 0, 1);
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} catch (NullPointerException npe) {
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return true;
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} catch (Exception ex) {
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logger.error(joiner.join(decompressor.getClass().getCanonicalName(),
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"checkSetInputNullPointerException error !!!"));
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}
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return false;
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}
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private boolean checkSetInputArrayIndexOutOfBoundsException(
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Compressor compressor) {
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try {
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compressor.setInput(new byte[] { (byte) 0 }, 0, -1);
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} catch (ArrayIndexOutOfBoundsException e) {
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return true;
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} catch (Exception e) {
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logger.error(joiner.join(compressor.getClass().getCanonicalName(),
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"checkSetInputArrayIndexOutOfBoundsException error !!!"));
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}
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return false;
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}
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private boolean checkCompressArrayIndexOutOfBoundsException(
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Compressor compressor, byte[] rawData) {
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try {
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compressor.setInput(rawData, 0, rawData.length);
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compressor.compress(new byte[rawData.length], 0, -1);
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} catch (ArrayIndexOutOfBoundsException e) {
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return true;
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} catch (Exception e) {
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logger.error(joiner.join(compressor.getClass().getCanonicalName(),
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"checkCompressArrayIndexOutOfBoundsException error !!!"));
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}
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return false;
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}
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private boolean checkCompressArrayIndexOutOfBoundsException(
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Decompressor decompressor, byte[] rawData) {
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try {
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decompressor.setInput(rawData, 0, rawData.length);
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decompressor.decompress(new byte[rawData.length], 0, -1);
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} catch (ArrayIndexOutOfBoundsException e) {
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return true;
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} catch (Exception e) {
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logger.error(joiner.join(decompressor.getClass().getCanonicalName(),
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"checkCompressArrayIndexOutOfBoundsException error !!!"));
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}
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return false;
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}
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private boolean checkSetInputArrayIndexOutOfBoundsException(
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Decompressor decompressor) {
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try {
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decompressor.setInput(new byte[] { (byte) 0 }, 0, -1);
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} catch (ArrayIndexOutOfBoundsException e) {
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return true;
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} catch (Exception e) {
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logger.error(joiner.join(decompressor.getClass().getCanonicalName(),
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"checkNullPointerException error !!!"));
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}
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return false;
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}
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}),
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COMPRESS_DECOMPRESS_SINGLE_BLOCK(new TesterCompressionStrategy() {
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final Joiner joiner = Joiner.on("- ");
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@Override
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public void assertCompression(String name, Compressor compressor,
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Decompressor decompressor, byte[] rawData) {
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int cSize = 0;
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int decompressedSize = 0;
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byte[] compressedResult = new byte[rawData.length];
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byte[] decompressedBytes = new byte[rawData.length];
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try {
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assertTrue(
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joiner.join(name, "compressor.needsInput before error !!!"),
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compressor.needsInput());
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assertTrue(
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joiner.join(name, "compressor.getBytesWritten before error !!!"),
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compressor.getBytesWritten() == 0);
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compressor.setInput(rawData, 0, rawData.length);
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compressor.finish();
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while (!compressor.finished()) {
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cSize += compressor.compress(compressedResult, 0,
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compressedResult.length);
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}
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compressor.reset();
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assertTrue(
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joiner.join(name, "decompressor.needsInput() before error !!!"),
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decompressor.needsInput());
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decompressor.setInput(compressedResult, 0, cSize);
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assertFalse(
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joiner.join(name, "decompressor.needsInput() after error !!!"),
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decompressor.needsInput());
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while (!decompressor.finished()) {
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decompressedSize = decompressor.decompress(decompressedBytes, 0,
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decompressedBytes.length);
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}
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decompressor.reset();
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assertTrue(joiner.join(name, " byte size not equals error !!!"),
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decompressedSize == rawData.length);
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assertArrayEquals(
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joiner.join(name, " byte arrays not equals error !!!"), rawData,
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decompressedBytes);
|
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} catch (Exception ex) {
|
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fail(joiner.join(name, ex.getMessage()));
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}
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}
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}),
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COMPRESS_DECOMPRESS_WITH_EMPTY_STREAM(new TesterCompressionStrategy() {
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final Joiner joiner = Joiner.on("- ");
|
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final ImmutableMap<Class<? extends Compressor>, Integer> emptySize = ImmutableMap
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.of(Lz4Compressor.class, 4, ZlibCompressor.class, 16,
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SnappyCompressor.class, 4, BuiltInZlibDeflater.class, 16);
|
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|
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@Override
|
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void assertCompression(String name, Compressor compressor,
|
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Decompressor decompressor, byte[] originalRawData) {
|
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byte[] buf = null;
|
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ByteArrayInputStream bytesIn = null;
|
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BlockDecompressorStream blockDecompressorStream = null;
|
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ByteArrayOutputStream bytesOut = new ByteArrayOutputStream();
|
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// close without write
|
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try {
|
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compressor.reset();
|
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// decompressor.end();
|
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BlockCompressorStream blockCompressorStream = new BlockCompressorStream(
|
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bytesOut, compressor, 1024, 0);
|
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blockCompressorStream.close();
|
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// check compressed output
|
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buf = bytesOut.toByteArray();
|
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int emSize = emptySize.get(compressor.getClass());
|
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Assert.assertEquals(
|
||||
joiner.join(name, "empty stream compressed output size != "
|
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+ emSize), emSize, buf.length);
|
||||
// use compressed output as input for decompression
|
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bytesIn = new ByteArrayInputStream(buf);
|
||||
// create decompression stream
|
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blockDecompressorStream = new BlockDecompressorStream(bytesIn,
|
||||
decompressor, 1024);
|
||||
// no byte is available because stream was closed
|
||||
assertEquals(joiner.join(name, " return value is not -1"), -1,
|
||||
blockDecompressorStream.read());
|
||||
} catch (IOException e) {
|
||||
fail(joiner.join(name, e.getMessage()));
|
||||
} finally {
|
||||
if (blockDecompressorStream != null)
|
||||
try {
|
||||
bytesOut.close();
|
||||
blockDecompressorStream.close();
|
||||
bytesIn.close();
|
||||
blockDecompressorStream.close();
|
||||
} catch (IOException e) {
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
}),
|
||||
|
||||
COMPRESS_DECOMPRESS_BLOCK(new TesterCompressionStrategy() {
|
||||
private final Joiner joiner = Joiner.on("- ");
|
||||
private static final int BLOCK_SIZE = 512;
|
||||
private final byte[] operationBlock = new byte[BLOCK_SIZE];
|
||||
// Use default of 512 as bufferSize and compressionOverhead of
|
||||
// (1% of bufferSize + 12 bytes) = 18 bytes (zlib algorithm).
|
||||
private static final int overheadSpace = BLOCK_SIZE / 100 + 12;
|
||||
|
||||
@Override
|
||||
public void assertCompression(String name, Compressor compressor,
|
||||
Decompressor decompressor, byte[] originalRawData) {
|
||||
int off = 0;
|
||||
int len = originalRawData.length;
|
||||
int maxSize = BLOCK_SIZE - overheadSpace;
|
||||
int compresSize = 0;
|
||||
List<Integer> blockLabels = new ArrayList<Integer>();
|
||||
ByteArrayOutputStream compressedOut = new ByteArrayOutputStream();
|
||||
ByteArrayOutputStream decompressOut = new ByteArrayOutputStream();
|
||||
try {
|
||||
if (originalRawData.length > maxSize) {
|
||||
do {
|
||||
int bufLen = Math.min(len, maxSize);
|
||||
compressor.setInput(originalRawData, off, bufLen);
|
||||
compressor.finish();
|
||||
while (!compressor.finished()) {
|
||||
compresSize = compressor.compress(operationBlock, 0,
|
||||
operationBlock.length);
|
||||
compressedOut.write(operationBlock, 0, compresSize);
|
||||
blockLabels.add(compresSize);
|
||||
}
|
||||
compressor.reset();
|
||||
off += bufLen;
|
||||
len -= bufLen;
|
||||
} while (len > 0);
|
||||
}
|
||||
|
||||
off = 0;
|
||||
// compressed bytes
|
||||
byte[] compressedBytes = compressedOut.toByteArray();
|
||||
for (Integer step : blockLabels) {
|
||||
decompressor.setInput(compressedBytes, off, step);
|
||||
while (!decompressor.finished()) {
|
||||
int dSize = decompressor.decompress(operationBlock, 0,
|
||||
operationBlock.length);
|
||||
decompressOut.write(operationBlock, 0, dSize);
|
||||
}
|
||||
decompressor.reset();
|
||||
off = off + step;
|
||||
}
|
||||
assertArrayEquals(
|
||||
joiner.join(name, "byte arrays not equals error !!!"),
|
||||
originalRawData, decompressOut.toByteArray());
|
||||
} catch (Exception ex) {
|
||||
fail(joiner.join(name, ex.getMessage()));
|
||||
} finally {
|
||||
try {
|
||||
compressedOut.close();
|
||||
} catch (IOException e) {
|
||||
}
|
||||
try {
|
||||
decompressOut.close();
|
||||
} catch (IOException e) {
|
||||
}
|
||||
}
|
||||
}
|
||||
});
|
||||
|
||||
private final TesterCompressionStrategy testerStrategy;
|
||||
|
||||
CompressionTestStrategy(TesterCompressionStrategy testStrategy) {
|
||||
this.testerStrategy = testStrategy;
|
||||
}
|
||||
|
||||
public TesterCompressionStrategy getTesterStrategy() {
|
||||
return testerStrategy;
|
||||
}
|
||||
}
|
||||
|
||||
static final class TesterPair<T extends Compressor, E extends Decompressor> {
|
||||
private final T compressor;
|
||||
private final E decompressor;
|
||||
private final String name;
|
||||
|
||||
TesterPair(String name, T compressor, E decompressor) {
|
||||
this.compressor = compressor;
|
||||
this.decompressor = decompressor;
|
||||
this.name = name;
|
||||
}
|
||||
|
||||
public void end() {
|
||||
Configuration cfg = new Configuration();
|
||||
compressor.reinit(cfg);
|
||||
compressor.end();
|
||||
decompressor.end();
|
||||
}
|
||||
|
||||
public T getCompressor() {
|
||||
return compressor;
|
||||
}
|
||||
|
||||
public E getDecompressor() {
|
||||
return decompressor;
|
||||
}
|
||||
|
||||
public String getName() {
|
||||
return name;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Method for compressor availability check
|
||||
*/
|
||||
private static <T extends Compressor, E extends Decompressor> boolean isAvailable(TesterPair<T, E> pair) {
|
||||
Compressor compressor = pair.compressor;
|
||||
|
||||
if (compressor.getClass().isAssignableFrom(Lz4Compressor.class)
|
||||
&& (NativeCodeLoader.isNativeCodeLoaded()))
|
||||
return true;
|
||||
|
||||
else if (compressor.getClass().isAssignableFrom(BuiltInZlibDeflater.class)
|
||||
&& NativeCodeLoader.isNativeCodeLoaded())
|
||||
return true;
|
||||
|
||||
else if (compressor.getClass().isAssignableFrom(ZlibCompressor.class)) {
|
||||
return ZlibFactory.isNativeZlibLoaded(new Configuration());
|
||||
}
|
||||
else if (compressor.getClass().isAssignableFrom(SnappyCompressor.class)
|
||||
&& isNativeSnappyLoadable())
|
||||
return true;
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
abstract static class TesterCompressionStrategy {
|
||||
|
||||
protected final Logger logger = Logger.getLogger(getClass());
|
||||
|
||||
abstract void assertCompression(String name, Compressor compressor,
|
||||
Decompressor decompressor, byte[] originalRawData);
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,101 @@
|
|||
/*
|
||||
* 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.io.compress;
|
||||
|
||||
import static org.junit.Assert.fail;
|
||||
import java.util.Random;
|
||||
import org.apache.hadoop.io.compress.CompressDecompressTester.CompressionTestStrategy;
|
||||
import org.apache.hadoop.io.compress.lz4.Lz4Compressor;
|
||||
import org.apache.hadoop.io.compress.lz4.Lz4Decompressor;
|
||||
import org.apache.hadoop.io.compress.snappy.SnappyCompressor;
|
||||
import org.apache.hadoop.io.compress.snappy.SnappyDecompressor;
|
||||
import org.apache.hadoop.io.compress.zlib.BuiltInZlibDeflater;
|
||||
import org.apache.hadoop.io.compress.zlib.BuiltInZlibInflater;
|
||||
import org.junit.Test;
|
||||
import com.google.common.collect.ImmutableSet;
|
||||
|
||||
/**
|
||||
* Test for pairs:
|
||||
* <pre>
|
||||
* SnappyCompressor/SnappyDecompressor
|
||||
* Lz4Compressor/Lz4Decompressor
|
||||
* BuiltInZlibDeflater/new BuiltInZlibInflater
|
||||
*
|
||||
*
|
||||
* Note: we can't use ZlibCompressor/ZlibDecompressor here
|
||||
* because his constructor can throw exception (if native libraries not found)
|
||||
* For ZlibCompressor/ZlibDecompressor pair testing used {@code TestZlibCompressorDecompressor}
|
||||
*
|
||||
* </pre>
|
||||
*
|
||||
*/
|
||||
public class TestCompressorDecompressor {
|
||||
|
||||
private static final Random rnd = new Random(12345L);
|
||||
|
||||
@Test
|
||||
public void testCompressorDecompressor() {
|
||||
// no more for this data
|
||||
int SIZE = 44 * 1024;
|
||||
|
||||
byte[] rawData = generate(SIZE);
|
||||
try {
|
||||
CompressDecompressTester.of(rawData)
|
||||
.withCompressDecompressPair(new SnappyCompressor(), new SnappyDecompressor())
|
||||
.withCompressDecompressPair(new Lz4Compressor(), new Lz4Decompressor())
|
||||
.withCompressDecompressPair(new BuiltInZlibDeflater(), new BuiltInZlibInflater())
|
||||
.withTestCases(ImmutableSet.of(CompressionTestStrategy.COMPRESS_DECOMPRESS_SINGLE_BLOCK,
|
||||
CompressionTestStrategy.COMPRESS_DECOMPRESS_BLOCK,
|
||||
CompressionTestStrategy.COMPRESS_DECOMPRESS_ERRORS,
|
||||
CompressionTestStrategy.COMPRESS_DECOMPRESS_WITH_EMPTY_STREAM))
|
||||
.test();
|
||||
|
||||
} catch (Exception ex) {
|
||||
fail("testCompressorDecompressor error !!!" + ex);
|
||||
}
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testCompressorDecompressorWithExeedBufferLimit() {
|
||||
int BYTE_SIZE = 100 * 1024;
|
||||
byte[] rawData = generate(BYTE_SIZE);
|
||||
try {
|
||||
CompressDecompressTester.of(rawData)
|
||||
.withCompressDecompressPair(
|
||||
new SnappyCompressor(BYTE_SIZE + BYTE_SIZE / 2),
|
||||
new SnappyDecompressor(BYTE_SIZE + BYTE_SIZE / 2))
|
||||
.withCompressDecompressPair(new Lz4Compressor(BYTE_SIZE),
|
||||
new Lz4Decompressor(BYTE_SIZE))
|
||||
.withTestCases(ImmutableSet.of(CompressionTestStrategy.COMPRESS_DECOMPRESS_SINGLE_BLOCK,
|
||||
CompressionTestStrategy.COMPRESS_DECOMPRESS_BLOCK,
|
||||
CompressionTestStrategy.COMPRESS_DECOMPRESS_ERRORS,
|
||||
CompressionTestStrategy.COMPRESS_DECOMPRESS_WITH_EMPTY_STREAM))
|
||||
.test();
|
||||
|
||||
} catch (Exception ex) {
|
||||
fail("testCompressorDecompressorWithExeedBufferLimit error !!!" + ex);
|
||||
}
|
||||
}
|
||||
|
||||
public static byte[] generate(int size) {
|
||||
byte[] array = new byte[size];
|
||||
for (int i = 0; i < size; i++)
|
||||
array[i] = (byte) rnd.nextInt(16);
|
||||
return array;
|
||||
}
|
||||
}
|
||||
|
|
@ -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.io.compress.zlib;
|
||||
|
||||
import static org.junit.Assert.*;
|
||||
import static org.junit.Assume.*;
|
||||
import java.io.IOException;
|
||||
import java.io.InputStream;
|
||||
import java.util.Random;
|
||||
|
||||
import org.apache.hadoop.conf.Configuration;
|
||||
import org.apache.hadoop.fs.CommonConfigurationKeys;
|
||||
import org.apache.hadoop.io.DataInputBuffer;
|
||||
import org.apache.hadoop.io.compress.CompressDecompressTester;
|
||||
import org.apache.hadoop.io.compress.Compressor;
|
||||
import org.apache.hadoop.io.compress.Decompressor;
|
||||
import org.apache.hadoop.io.compress.DecompressorStream;
|
||||
import org.apache.hadoop.io.compress.CompressDecompressTester.CompressionTestStrategy;
|
||||
import org.apache.hadoop.io.compress.zlib.ZlibCompressor.CompressionLevel;
|
||||
import org.apache.hadoop.io.compress.zlib.ZlibCompressor.CompressionStrategy;
|
||||
import org.junit.Before;
|
||||
import org.junit.Test;
|
||||
import com.google.common.collect.ImmutableSet;
|
||||
|
||||
public class TestZlibCompressorDecompressor {
|
||||
|
||||
private static final Random random = new Random(12345L);
|
||||
|
||||
@Before
|
||||
public void before() {
|
||||
assumeTrue(ZlibFactory.isNativeZlibLoaded(new Configuration()));
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testZlibCompressorDecompressor() {
|
||||
try {
|
||||
int SIZE = 44 * 1024;
|
||||
byte[] rawData = generate(SIZE);
|
||||
|
||||
CompressDecompressTester.of(rawData)
|
||||
.withCompressDecompressPair(new ZlibCompressor(), new ZlibDecompressor())
|
||||
.withTestCases(ImmutableSet.of(CompressionTestStrategy.COMPRESS_DECOMPRESS_SINGLE_BLOCK,
|
||||
CompressionTestStrategy.COMPRESS_DECOMPRESS_BLOCK,
|
||||
CompressionTestStrategy.COMPRESS_DECOMPRESS_ERRORS,
|
||||
CompressionTestStrategy.COMPRESS_DECOMPRESS_WITH_EMPTY_STREAM))
|
||||
.test();
|
||||
} catch (Exception ex) {
|
||||
fail("testCompressorDecompressor error !!!" + ex);
|
||||
}
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testCompressorDecompressorWithExeedBufferLimit() {
|
||||
int BYTE_SIZE = 100 * 1024;
|
||||
byte[] rawData = generate(BYTE_SIZE);
|
||||
try {
|
||||
CompressDecompressTester.of(rawData)
|
||||
.withCompressDecompressPair(
|
||||
new ZlibCompressor(
|
||||
org.apache.hadoop.io.compress.zlib.ZlibCompressor.CompressionLevel.BEST_COMPRESSION,
|
||||
CompressionStrategy.DEFAULT_STRATEGY,
|
||||
org.apache.hadoop.io.compress.zlib.ZlibCompressor.CompressionHeader.DEFAULT_HEADER,
|
||||
BYTE_SIZE),
|
||||
new ZlibDecompressor(
|
||||
org.apache.hadoop.io.compress.zlib.ZlibDecompressor.CompressionHeader.DEFAULT_HEADER,
|
||||
BYTE_SIZE))
|
||||
.withTestCases(ImmutableSet.of(CompressionTestStrategy.COMPRESS_DECOMPRESS_SINGLE_BLOCK,
|
||||
CompressionTestStrategy.COMPRESS_DECOMPRESS_BLOCK,
|
||||
CompressionTestStrategy.COMPRESS_DECOMPRESS_ERRORS,
|
||||
CompressionTestStrategy.COMPRESS_DECOMPRESS_WITH_EMPTY_STREAM))
|
||||
.test();
|
||||
} catch (Exception ex) {
|
||||
fail("testCompressorDecompressorWithExeedBufferLimit error !!!" + ex);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
@Test
|
||||
public void testZlibCompressorDecompressorWithConfiguration() {
|
||||
Configuration conf = new Configuration();
|
||||
conf.setBoolean(CommonConfigurationKeys.IO_NATIVE_LIB_AVAILABLE_KEY, true);
|
||||
if (ZlibFactory.isNativeZlibLoaded(conf)) {
|
||||
byte[] rawData;
|
||||
int tryNumber = 5;
|
||||
int BYTE_SIZE = 10 * 1024;
|
||||
Compressor zlibCompressor = ZlibFactory.getZlibCompressor(conf);
|
||||
Decompressor zlibDecompressor = ZlibFactory.getZlibDecompressor(conf);
|
||||
rawData = generate(BYTE_SIZE);
|
||||
try {
|
||||
for (int i = 0; i < tryNumber; i++)
|
||||
compressDecompressZlib(rawData, (ZlibCompressor) zlibCompressor,
|
||||
(ZlibDecompressor) zlibDecompressor);
|
||||
zlibCompressor.reinit(conf);
|
||||
} catch (Exception ex) {
|
||||
fail("testZlibCompressorDecompressorWithConfiguration ex error " + ex);
|
||||
}
|
||||
} else {
|
||||
assertTrue("ZlibFactory is using native libs against request",
|
||||
ZlibFactory.isNativeZlibLoaded(conf));
|
||||
}
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testZlibCompressDecompress() {
|
||||
byte[] rawData = null;
|
||||
int rawDataSize = 0;
|
||||
rawDataSize = 1024 * 64;
|
||||
rawData = generate(rawDataSize);
|
||||
try {
|
||||
ZlibCompressor compressor = new ZlibCompressor();
|
||||
ZlibDecompressor decompressor = new ZlibDecompressor();
|
||||
assertFalse("testZlibCompressDecompress finished error",
|
||||
compressor.finished());
|
||||
compressor.setInput(rawData, 0, rawData.length);
|
||||
assertTrue("testZlibCompressDecompress getBytesRead before error",
|
||||
compressor.getBytesRead() == 0);
|
||||
compressor.finish();
|
||||
|
||||
byte[] compressedResult = new byte[rawDataSize];
|
||||
int cSize = compressor.compress(compressedResult, 0, rawDataSize);
|
||||
assertTrue("testZlibCompressDecompress getBytesRead ather error",
|
||||
compressor.getBytesRead() == rawDataSize);
|
||||
assertTrue(
|
||||
"testZlibCompressDecompress compressed size no less then original size",
|
||||
cSize < rawDataSize);
|
||||
decompressor.setInput(compressedResult, 0, cSize);
|
||||
byte[] decompressedBytes = new byte[rawDataSize];
|
||||
decompressor.decompress(decompressedBytes, 0, decompressedBytes.length);
|
||||
assertArrayEquals("testZlibCompressDecompress arrays not equals ",
|
||||
rawData, decompressedBytes);
|
||||
compressor.reset();
|
||||
decompressor.reset();
|
||||
} catch (IOException ex) {
|
||||
fail("testZlibCompressDecompress ex !!!" + ex);
|
||||
}
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testZlibCompressorDecompressorSetDictionary() {
|
||||
Configuration conf = new Configuration();
|
||||
conf.setBoolean(CommonConfigurationKeys.IO_NATIVE_LIB_AVAILABLE_KEY, true);
|
||||
if (ZlibFactory.isNativeZlibLoaded(conf)) {
|
||||
Compressor zlibCompressor = ZlibFactory.getZlibCompressor(conf);
|
||||
Decompressor zlibDecompressor = ZlibFactory.getZlibDecompressor(conf);
|
||||
|
||||
checkSetDictionaryNullPointerException(zlibCompressor);
|
||||
checkSetDictionaryNullPointerException(zlibDecompressor);
|
||||
|
||||
checkSetDictionaryArrayIndexOutOfBoundsException(zlibDecompressor);
|
||||
checkSetDictionaryArrayIndexOutOfBoundsException(zlibCompressor);
|
||||
} else {
|
||||
assertTrue("ZlibFactory is using native libs against request",
|
||||
ZlibFactory.isNativeZlibLoaded(conf));
|
||||
}
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testZlibFactory() {
|
||||
Configuration cfg = new Configuration();
|
||||
|
||||
assertTrue("testZlibFactory compression level error !!!",
|
||||
CompressionLevel.DEFAULT_COMPRESSION == ZlibFactory
|
||||
.getCompressionLevel(cfg));
|
||||
|
||||
assertTrue("testZlibFactory compression strategy error !!!",
|
||||
CompressionStrategy.DEFAULT_STRATEGY == ZlibFactory
|
||||
.getCompressionStrategy(cfg));
|
||||
|
||||
ZlibFactory.setCompressionLevel(cfg, CompressionLevel.BEST_COMPRESSION);
|
||||
assertTrue("testZlibFactory compression strategy error !!!",
|
||||
CompressionLevel.BEST_COMPRESSION == ZlibFactory
|
||||
.getCompressionLevel(cfg));
|
||||
|
||||
ZlibFactory.setCompressionStrategy(cfg, CompressionStrategy.FILTERED);
|
||||
assertTrue("testZlibFactory compression strategy error !!!",
|
||||
CompressionStrategy.FILTERED == ZlibFactory.getCompressionStrategy(cfg));
|
||||
}
|
||||
|
||||
|
||||
private boolean checkSetDictionaryNullPointerException(
|
||||
Decompressor decompressor) {
|
||||
try {
|
||||
decompressor.setDictionary(null, 0, 1);
|
||||
} catch (NullPointerException ex) {
|
||||
return true;
|
||||
} catch (Exception ex) {
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
private boolean checkSetDictionaryNullPointerException(Compressor compressor) {
|
||||
try {
|
||||
compressor.setDictionary(null, 0, 1);
|
||||
} catch (NullPointerException ex) {
|
||||
return true;
|
||||
} catch (Exception ex) {
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
private boolean checkSetDictionaryArrayIndexOutOfBoundsException(
|
||||
Compressor compressor) {
|
||||
try {
|
||||
compressor.setDictionary(new byte[] { (byte) 0 }, 0, -1);
|
||||
} catch (ArrayIndexOutOfBoundsException e) {
|
||||
return true;
|
||||
} catch (Exception e) {
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
private boolean checkSetDictionaryArrayIndexOutOfBoundsException(
|
||||
Decompressor decompressor) {
|
||||
try {
|
||||
decompressor.setDictionary(new byte[] { (byte) 0 }, 0, -1);
|
||||
} catch (ArrayIndexOutOfBoundsException e) {
|
||||
return true;
|
||||
} catch (Exception e) {
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
private byte[] compressDecompressZlib(byte[] rawData,
|
||||
ZlibCompressor zlibCompressor, ZlibDecompressor zlibDecompressor)
|
||||
throws IOException {
|
||||
int cSize = 0;
|
||||
byte[] compressedByte = new byte[rawData.length];
|
||||
byte[] decompressedRawData = new byte[rawData.length];
|
||||
zlibCompressor.setInput(rawData, 0, rawData.length);
|
||||
zlibCompressor.finish();
|
||||
while (!zlibCompressor.finished()) {
|
||||
cSize = zlibCompressor.compress(compressedByte, 0, compressedByte.length);
|
||||
}
|
||||
zlibCompressor.reset();
|
||||
|
||||
assertTrue(zlibDecompressor.getBytesWritten() == 0);
|
||||
assertTrue(zlibDecompressor.getBytesRead() == 0);
|
||||
assertTrue(zlibDecompressor.needsInput());
|
||||
zlibDecompressor.setInput(compressedByte, 0, cSize);
|
||||
assertFalse(zlibDecompressor.needsInput());
|
||||
while (!zlibDecompressor.finished()) {
|
||||
zlibDecompressor.decompress(decompressedRawData, 0,
|
||||
decompressedRawData.length);
|
||||
}
|
||||
assertTrue(zlibDecompressor.getBytesWritten() == rawData.length);
|
||||
assertTrue(zlibDecompressor.getBytesRead() == cSize);
|
||||
zlibDecompressor.reset();
|
||||
assertTrue(zlibDecompressor.getRemaining() == 0);
|
||||
assertArrayEquals(
|
||||
"testZlibCompressorDecompressorWithConfiguration array equals error",
|
||||
rawData, decompressedRawData);
|
||||
|
||||
return decompressedRawData;
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testBuiltInGzipDecompressorExceptions() {
|
||||
BuiltInGzipDecompressor decompresser = new BuiltInGzipDecompressor();
|
||||
try {
|
||||
decompresser.setInput(null, 0, 1);
|
||||
} catch (NullPointerException ex) {
|
||||
// expected
|
||||
} catch (Exception ex) {
|
||||
fail("testBuiltInGzipDecompressorExceptions npe error " + ex);
|
||||
}
|
||||
|
||||
try {
|
||||
decompresser.setInput(new byte[] { 0 }, 0, -1);
|
||||
} catch (ArrayIndexOutOfBoundsException ex) {
|
||||
// expected
|
||||
} catch (Exception ex) {
|
||||
fail("testBuiltInGzipDecompressorExceptions aioob error" + ex);
|
||||
}
|
||||
|
||||
assertTrue("decompresser.getBytesRead error",
|
||||
decompresser.getBytesRead() == 0);
|
||||
assertTrue("decompresser.getRemaining error",
|
||||
decompresser.getRemaining() == 0);
|
||||
decompresser.reset();
|
||||
decompresser.end();
|
||||
|
||||
InputStream decompStream = null;
|
||||
try {
|
||||
// invalid 0 and 1 bytes , must be 31, -117
|
||||
int buffSize = 1 * 1024;
|
||||
byte buffer[] = new byte[buffSize];
|
||||
Decompressor decompressor = new BuiltInGzipDecompressor();
|
||||
DataInputBuffer gzbuf = new DataInputBuffer();
|
||||
decompStream = new DecompressorStream(gzbuf, decompressor);
|
||||
gzbuf.reset(new byte[] { 0, 0, 1, 1, 1, 1, 11, 1, 1, 1, 1 }, 11);
|
||||
decompStream.read(buffer);
|
||||
} catch (IOException ioex) {
|
||||
// expected
|
||||
} catch (Exception ex) {
|
||||
fail("invalid 0 and 1 byte in gzip stream" + ex);
|
||||
}
|
||||
|
||||
// invalid 2 byte, must be 8
|
||||
try {
|
||||
int buffSize = 1 * 1024;
|
||||
byte buffer[] = new byte[buffSize];
|
||||
Decompressor decompressor = new BuiltInGzipDecompressor();
|
||||
DataInputBuffer gzbuf = new DataInputBuffer();
|
||||
decompStream = new DecompressorStream(gzbuf, decompressor);
|
||||
gzbuf.reset(new byte[] { 31, -117, 7, 1, 1, 1, 1, 11, 1, 1, 1, 1 }, 11);
|
||||
decompStream.read(buffer);
|
||||
} catch (IOException ioex) {
|
||||
// expected
|
||||
} catch (Exception ex) {
|
||||
fail("invalid 2 byte in gzip stream" + ex);
|
||||
}
|
||||
|
||||
try {
|
||||
int buffSize = 1 * 1024;
|
||||
byte buffer[] = new byte[buffSize];
|
||||
Decompressor decompressor = new BuiltInGzipDecompressor();
|
||||
DataInputBuffer gzbuf = new DataInputBuffer();
|
||||
decompStream = new DecompressorStream(gzbuf, decompressor);
|
||||
gzbuf.reset(new byte[] { 31, -117, 8, -32, 1, 1, 1, 11, 1, 1, 1, 1 }, 11);
|
||||
decompStream.read(buffer);
|
||||
} catch (IOException ioex) {
|
||||
// expected
|
||||
} catch (Exception ex) {
|
||||
fail("invalid 3 byte in gzip stream" + ex);
|
||||
}
|
||||
try {
|
||||
int buffSize = 1 * 1024;
|
||||
byte buffer[] = new byte[buffSize];
|
||||
Decompressor decompressor = new BuiltInGzipDecompressor();
|
||||
DataInputBuffer gzbuf = new DataInputBuffer();
|
||||
decompStream = new DecompressorStream(gzbuf, decompressor);
|
||||
gzbuf.reset(new byte[] { 31, -117, 8, 4, 1, 1, 1, 11, 1, 1, 1, 1 }, 11);
|
||||
decompStream.read(buffer);
|
||||
} catch (IOException ioex) {
|
||||
// expected
|
||||
} catch (Exception ex) {
|
||||
fail("invalid 3 byte make hasExtraField" + ex);
|
||||
}
|
||||
}
|
||||
|
||||
public static byte[] generate(int size) {
|
||||
byte[] data = new byte[size];
|
||||
for (int i = 0; i < size; i++)
|
||||
data[i] = (byte)random.nextInt(16);
|
||||
return data;
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue