| /* |
| * 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 java.io.IOException; |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| import java.util.*; |
| |
| import junit.framework.TestCase; |
| import org.apache.hadoop.fs.Path; |
| import org.apache.hadoop.conf.Configuration; |
| |
| public class TestCodecFactory extends TestCase { |
| |
| private static class BaseCodec implements CompressionCodec { |
| private Configuration conf; |
| |
| public void setConf(Configuration conf) { |
| this.conf = conf; |
| } |
| |
| public Configuration getConf() { |
| return conf; |
| } |
| |
| @Override |
| public CompressionOutputStream createOutputStream(OutputStream out) |
| throws IOException { |
| return null; |
| } |
| |
| @Override |
| public Class<? extends Compressor> getCompressorType() { |
| return null; |
| } |
| |
| @Override |
| public Compressor createCompressor() { |
| return null; |
| } |
| |
| @Override |
| public CompressionInputStream createInputStream(InputStream in, |
| Decompressor decompressor) |
| throws IOException { |
| return null; |
| } |
| |
| @Override |
| public CompressionInputStream createInputStream(InputStream in) |
| throws IOException { |
| return null; |
| } |
| |
| @Override |
| public CompressionOutputStream createOutputStream(OutputStream out, |
| Compressor compressor) |
| throws IOException { |
| return null; |
| } |
| |
| @Override |
| public Class<? extends Decompressor> getDecompressorType() { |
| return null; |
| } |
| |
| @Override |
| public Decompressor createDecompressor() { |
| return null; |
| } |
| |
| @Override |
| public String getDefaultExtension() { |
| return ".base"; |
| } |
| } |
| |
| private static class BarCodec extends BaseCodec { |
| @Override |
| public String getDefaultExtension() { |
| return "bar"; |
| } |
| } |
| |
| private static class FooBarCodec extends BaseCodec { |
| @Override |
| public String getDefaultExtension() { |
| return ".foo.bar"; |
| } |
| } |
| |
| private static class FooCodec extends BaseCodec { |
| @Override |
| public String getDefaultExtension() { |
| return ".foo"; |
| } |
| } |
| |
| private static class NewGzipCodec extends BaseCodec { |
| @Override |
| public String getDefaultExtension() { |
| return ".gz"; |
| } |
| } |
| |
| /** |
| * Returns a factory for a given set of codecs |
| * @param classes the codec classes to include |
| * @return a new factory |
| */ |
| private static CompressionCodecFactory setClasses(Class[] classes) { |
| Configuration conf = new Configuration(); |
| CompressionCodecFactory.setCodecClasses(conf, Arrays.asList(classes)); |
| return new CompressionCodecFactory(conf); |
| } |
| |
| private static void checkCodec(String msg, |
| Class expected, CompressionCodec actual) { |
| assertEquals(msg + " unexpected codec found", |
| expected.getName(), |
| actual.getClass().getName()); |
| } |
| |
| public static void testFinding() { |
| CompressionCodecFactory factory = |
| new CompressionCodecFactory(new Configuration()); |
| CompressionCodec codec = factory.getCodec(new Path("/tmp/foo.bar")); |
| assertEquals("default factory foo codec", null, codec); |
| codec = factory.getCodecByClassName(BarCodec.class.getCanonicalName()); |
| assertEquals("default factory foo codec", null, codec); |
| |
| codec = factory.getCodec(new Path("/tmp/foo.gz")); |
| checkCodec("default factory for .gz", GzipCodec.class, codec); |
| codec = factory.getCodecByClassName(GzipCodec.class.getCanonicalName()); |
| checkCodec("default factory for gzip codec", GzipCodec.class, codec); |
| codec = factory.getCodecByName("gzip"); |
| checkCodec("default factory for gzip codec", GzipCodec.class, codec); |
| codec = factory.getCodecByName("GZIP"); |
| checkCodec("default factory for gzip codec", GzipCodec.class, codec); |
| codec = factory.getCodecByName("GZIPCodec"); |
| checkCodec("default factory for gzip codec", GzipCodec.class, codec); |
| codec = factory.getCodecByName("gzipcodec"); |
| checkCodec("default factory for gzip codec", GzipCodec.class, codec); |
| Class klass = factory.getCodecClassByName("gzipcodec"); |
| assertEquals(GzipCodec.class, klass); |
| |
| codec = factory.getCodec(new Path("/tmp/foo.bz2")); |
| checkCodec("default factory for .bz2", BZip2Codec.class, codec); |
| codec = factory.getCodecByClassName(BZip2Codec.class.getCanonicalName()); |
| checkCodec("default factory for bzip2 codec", BZip2Codec.class, codec); |
| codec = factory.getCodecByName("bzip2"); |
| checkCodec("default factory for bzip2 codec", BZip2Codec.class, codec); |
| codec = factory.getCodecByName("bzip2codec"); |
| checkCodec("default factory for bzip2 codec", BZip2Codec.class, codec); |
| codec = factory.getCodecByName("BZIP2"); |
| checkCodec("default factory for bzip2 codec", BZip2Codec.class, codec); |
| codec = factory.getCodecByName("BZIP2CODEC"); |
| checkCodec("default factory for bzip2 codec", BZip2Codec.class, codec); |
| |
| codec = factory.getCodecByClassName(DeflateCodec.class.getCanonicalName()); |
| checkCodec("default factory for deflate codec", DeflateCodec.class, codec); |
| codec = factory.getCodecByName("deflate"); |
| checkCodec("default factory for deflate codec", DeflateCodec.class, codec); |
| codec = factory.getCodecByName("deflatecodec"); |
| checkCodec("default factory for deflate codec", DeflateCodec.class, codec); |
| codec = factory.getCodecByName("DEFLATE"); |
| checkCodec("default factory for deflate codec", DeflateCodec.class, codec); |
| codec = factory.getCodecByName("DEFLATECODEC"); |
| checkCodec("default factory for deflate codec", DeflateCodec.class, codec); |
| |
| factory = setClasses(new Class[0]); |
| // gz, bz2, snappy, lz4 are picked up by service loader, but bar isn't |
| codec = factory.getCodec(new Path("/tmp/foo.bar")); |
| assertEquals("empty factory bar codec", null, codec); |
| codec = factory.getCodecByClassName(BarCodec.class.getCanonicalName()); |
| assertEquals("empty factory bar codec", null, codec); |
| |
| codec = factory.getCodec(new Path("/tmp/foo.gz")); |
| checkCodec("empty factory gz codec", GzipCodec.class, codec); |
| codec = factory.getCodecByClassName(GzipCodec.class.getCanonicalName()); |
| checkCodec("empty factory gz codec", GzipCodec.class, codec); |
| |
| codec = factory.getCodec(new Path("/tmp/foo.bz2")); |
| checkCodec("empty factory for .bz2", BZip2Codec.class, codec); |
| codec = factory.getCodecByClassName(BZip2Codec.class.getCanonicalName()); |
| checkCodec("empty factory for bzip2 codec", BZip2Codec.class, codec); |
| |
| codec = factory.getCodec(new Path("/tmp/foo.snappy")); |
| checkCodec("empty factory snappy codec", SnappyCodec.class, codec); |
| codec = factory.getCodecByClassName(SnappyCodec.class.getCanonicalName()); |
| checkCodec("empty factory snappy codec", SnappyCodec.class, codec); |
| |
| codec = factory.getCodec(new Path("/tmp/foo.lz4")); |
| checkCodec("empty factory lz4 codec", Lz4Codec.class, codec); |
| codec = factory.getCodecByClassName(Lz4Codec.class.getCanonicalName()); |
| checkCodec("empty factory lz4 codec", Lz4Codec.class, codec); |
| |
| factory = setClasses(new Class[]{BarCodec.class, FooCodec.class, |
| FooBarCodec.class}); |
| codec = factory.getCodec(new Path("/tmp/.foo.bar.gz")); |
| checkCodec("full factory gz codec", GzipCodec.class, codec); |
| codec = factory.getCodecByClassName(GzipCodec.class.getCanonicalName()); |
| checkCodec("full codec gz codec", GzipCodec.class, codec); |
| |
| codec = factory.getCodec(new Path("/tmp/foo.bz2")); |
| checkCodec("full factory for .bz2", BZip2Codec.class, codec); |
| codec = factory.getCodecByClassName(BZip2Codec.class.getCanonicalName()); |
| checkCodec("full codec bzip2 codec", BZip2Codec.class, codec); |
| |
| codec = factory.getCodec(new Path("/tmp/foo.bar")); |
| checkCodec("full factory bar codec", BarCodec.class, codec); |
| codec = factory.getCodecByClassName(BarCodec.class.getCanonicalName()); |
| checkCodec("full factory bar codec", BarCodec.class, codec); |
| codec = factory.getCodecByName("bar"); |
| checkCodec("full factory bar codec", BarCodec.class, codec); |
| codec = factory.getCodecByName("BAR"); |
| checkCodec("full factory bar codec", BarCodec.class, codec); |
| |
| codec = factory.getCodec(new Path("/tmp/foo/baz.foo.bar")); |
| checkCodec("full factory foo bar codec", FooBarCodec.class, codec); |
| codec = factory.getCodecByClassName(FooBarCodec.class.getCanonicalName()); |
| checkCodec("full factory foo bar codec", FooBarCodec.class, codec); |
| codec = factory.getCodecByName("foobar"); |
| checkCodec("full factory foo bar codec", FooBarCodec.class, codec); |
| codec = factory.getCodecByName("FOOBAR"); |
| checkCodec("full factory foo bar codec", FooBarCodec.class, codec); |
| |
| codec = factory.getCodec(new Path("/tmp/foo.foo")); |
| checkCodec("full factory foo codec", FooCodec.class, codec); |
| codec = factory.getCodecByClassName(FooCodec.class.getCanonicalName()); |
| checkCodec("full factory foo codec", FooCodec.class, codec); |
| codec = factory.getCodecByName("foo"); |
| checkCodec("full factory foo codec", FooCodec.class, codec); |
| codec = factory.getCodecByName("FOO"); |
| checkCodec("full factory foo codec", FooCodec.class, codec); |
| |
| factory = setClasses(new Class[]{NewGzipCodec.class}); |
| codec = factory.getCodec(new Path("/tmp/foo.gz")); |
| checkCodec("overridden factory for .gz", NewGzipCodec.class, codec); |
| codec = factory.getCodecByClassName(NewGzipCodec.class.getCanonicalName()); |
| checkCodec("overridden factory for gzip codec", NewGzipCodec.class, codec); |
| |
| Configuration conf = new Configuration(); |
| conf.set("io.compression.codecs", |
| " org.apache.hadoop.io.compress.GzipCodec , " + |
| " org.apache.hadoop.io.compress.DefaultCodec , " + |
| " org.apache.hadoop.io.compress.BZip2Codec "); |
| try { |
| CompressionCodecFactory.getCodecClasses(conf); |
| } catch (IllegalArgumentException e) { |
| fail("IllegalArgumentException is unexpected"); |
| } |
| |
| } |
| } |