| /* |
| * 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.commons.compress.compressors; |
| |
| import static org.junit.Assert.assertArrayEquals; |
| import static org.junit.Assert.assertEquals; |
| |
| import java.io.BufferedInputStream; |
| import java.io.File; |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| import java.nio.file.Files; |
| import java.util.Random; |
| |
| import org.apache.commons.compress.AbstractTestCase; |
| import org.apache.commons.compress.compressors.snappy.FramedSnappyCompressorInputStream; |
| import org.apache.commons.compress.utils.IOUtils; |
| import org.junit.Test; |
| |
| public final class FramedSnappyTestCase |
| extends AbstractTestCase { |
| |
| @Test |
| public void testDefaultExtraction() throws Exception { |
| testUnarchive(FramedSnappyCompressorInputStream::new); |
| } |
| |
| @Test |
| public void testDefaultExtractionViaFactory() throws Exception { |
| testUnarchive(is -> new CompressorStreamFactory() |
| .createCompressorInputStream(CompressorStreamFactory.SNAPPY_FRAMED, |
| is)); |
| } |
| |
| @Test |
| public void testDefaultExtractionViaFactoryAutodetection() throws Exception { |
| testUnarchive(is -> new CompressorStreamFactory().createCompressorInputStream(is)); |
| } |
| |
| private void testUnarchive(final StreamWrapper<CompressorInputStream> wrapper) throws Exception { |
| final File input = getFile("bla.tar.sz"); |
| final File output = new File(dir, "bla.tar"); |
| try (InputStream is = Files.newInputStream(input.toPath())) { |
| // the intermediate BufferedInputStream is there for mark |
| // support in the autodetection test |
| try (CompressorInputStream in = wrapper.wrap(new BufferedInputStream(is)); |
| OutputStream out = Files.newOutputStream(output.toPath())) { |
| IOUtils.copy(in, out); |
| assertEquals(995, in.getBytesRead()); |
| } |
| } |
| final File original = getFile("bla.tar"); |
| try (InputStream written = Files.newInputStream(output.toPath())) { |
| try (InputStream orig = Files.newInputStream(original.toPath())) { |
| assertArrayEquals(IOUtils.toByteArray(written), |
| IOUtils.toByteArray(orig)); |
| } |
| } |
| } |
| |
| @Test |
| public void testRoundtrip() throws Exception { |
| testRoundtrip(getFile("test.txt")); |
| testRoundtrip(getFile("bla.tar")); |
| testRoundtrip(getFile("COMPRESS-256.7z")); |
| } |
| |
| @Test |
| public void testRoundtripWithOneBigWrite() throws Exception { |
| final Random r = new Random(); |
| final File input = new File(dir, "bigChunkTest"); |
| try (OutputStream fs = Files.newOutputStream(input.toPath())) { |
| for (int i = 0 ; i < 1 << 17; i++) { |
| fs.write(r.nextInt(256)); |
| } |
| } |
| final long start = System.currentTimeMillis(); |
| final File outputSz = new File(dir, input.getName() + ".sz"); |
| try (InputStream is = Files.newInputStream(input.toPath()); |
| OutputStream os = Files.newOutputStream(outputSz.toPath()); |
| CompressorOutputStream sos = new CompressorStreamFactory() |
| .createCompressorOutputStream("snappy-framed", os)) { |
| final byte[] b = IOUtils.toByteArray(is); |
| sos.write(b[0]); |
| sos.write(b, 1, b.length - 1); // must be split into multiple compressed chunks |
| } |
| System.err.println(input.getName() + " written, uncompressed bytes: " + input.length() |
| + ", compressed bytes: " + outputSz.length() + " after " + (System.currentTimeMillis() - start) + "ms"); |
| try (InputStream is = Files.newInputStream(input.toPath()); |
| CompressorInputStream sis = new CompressorStreamFactory() |
| .createCompressorInputStream("snappy-framed", Files.newInputStream(outputSz.toPath()))) { |
| final byte[] expected = IOUtils.toByteArray(is); |
| final byte[] actual = IOUtils.toByteArray(sis); |
| assertArrayEquals(expected, actual); |
| } |
| } |
| |
| private void testRoundtrip(final File input) throws Exception { |
| final long start = System.currentTimeMillis(); |
| final File outputSz = new File(dir, input.getName() + ".sz"); |
| try (InputStream is = Files.newInputStream(input.toPath()); |
| OutputStream os = Files.newOutputStream(outputSz.toPath()); |
| CompressorOutputStream sos = new CompressorStreamFactory() |
| .createCompressorOutputStream("snappy-framed", os)) { |
| IOUtils.copy(is, sos); |
| } |
| System.err.println(input.getName() + " written, uncompressed bytes: " + input.length() |
| + ", compressed bytes: " + outputSz.length() + " after " + (System.currentTimeMillis() - start) + "ms"); |
| try (InputStream is = Files.newInputStream(input.toPath()); |
| CompressorInputStream sis = new CompressorStreamFactory() |
| .createCompressorInputStream("snappy-framed", Files.newInputStream(outputSz.toPath()))) { |
| final byte[] expected = IOUtils.toByteArray(is); |
| final byte[] actual = IOUtils.toByteArray(sis); |
| assertArrayEquals(expected, actual); |
| } |
| } |
| } |