本文整理汇总了Java中org.apache.hadoop.io.compress.zlib.ZlibCompressor.CompressionLevel类的典型用法代码示例。如果您正苦于以下问题：Java CompressionLevel类的具体用法？Java CompressionLevel怎么用？Java CompressionLevel使用的例子？那么, 这里精选的类代码示例或许可以为您提供帮助。
CompressionLevel类属于org.apache.hadoop.io.compress.zlib.ZlibCompressor包，在下文中一共展示了CompressionLevel类的6个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: testCompressorDecompressorWithExeedBufferLimit
import org.apache.hadoop.io.compress.zlib.ZlibCompressor.CompressionLevel; //导入依赖的package包/类
@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);
}
}
示例2: testZlibFactory
import org.apache.hadoop.io.compress.zlib.ZlibCompressor.CompressionLevel; //导入依赖的package包/类
@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));
}
示例3: testGzipCodecWithParam
import org.apache.hadoop.io.compress.zlib.ZlibCompressor.CompressionLevel; //导入依赖的package包/类
@Test
public void testGzipCodecWithParam() throws IOException {
Configuration conf = new Configuration(this.conf);
ZlibFactory.setCompressionLevel(conf, CompressionLevel.BEST_COMPRESSION);
ZlibFactory.setCompressionStrategy(conf, CompressionStrategy.HUFFMAN_ONLY);
codecTest(conf, seed, 0, "org.apache.hadoop.io.compress.GzipCodec");
codecTest(conf, seed, count, "org.apache.hadoop.io.compress.GzipCodec");
}
示例4: gzipReinitTest
import org.apache.hadoop.io.compress.zlib.ZlibCompressor.CompressionLevel; //导入依赖的package包/类
private static void gzipReinitTest(Configuration conf, CompressionCodec codec)
throws IOException {
// Add codec to cache
ZlibFactory.setCompressionLevel(conf, CompressionLevel.BEST_COMPRESSION);
ZlibFactory.setCompressionStrategy(conf,
CompressionStrategy.DEFAULT_STRATEGY);
Compressor c1 = CodecPool.getCompressor(codec);
CodecPool.returnCompressor(c1);
// reset compressor's compression level to perform no compression
ZlibFactory.setCompressionLevel(conf, CompressionLevel.NO_COMPRESSION);
Compressor c2 = CodecPool.getCompressor(codec, conf);
// ensure same compressor placed earlier
assertTrue("Got mismatched ZlibCompressor", c1 == c2);
ByteArrayOutputStream bos = new ByteArrayOutputStream();
CompressionOutputStream cos = null;
// write trivially compressable data
byte[] b = new byte[1 << 15];
Arrays.fill(b, (byte) 43);
try {
cos = codec.createOutputStream(bos, c2);
cos.write(b);
} finally {
if (cos != null) {
cos.close();
}
CodecPool.returnCompressor(c2);
}
byte[] outbytes = bos.toByteArray();
// verify data were not compressed
assertTrue("Compressed bytes contrary to configuration",
outbytes.length >= b.length);
}
示例5: codecTestWithNOCompression
import org.apache.hadoop.io.compress.zlib.ZlibCompressor.CompressionLevel; //导入依赖的package包/类
private static void codecTestWithNOCompression (Configuration conf,
String codecClass) throws IOException {
// Create a compressor with NO_COMPRESSION and make sure that
// output is not compressed by comparing the size with the
// original input
CompressionCodec codec = null;
ZlibFactory.setCompressionLevel(conf, CompressionLevel.NO_COMPRESSION);
try {
codec = (CompressionCodec)
ReflectionUtils.newInstance(conf.getClassByName(codecClass), conf);
} catch (ClassNotFoundException cnfe) {
throw new IOException("Illegal codec!");
}
Compressor c = codec.createCompressor();
// ensure same compressor placed earlier
ByteArrayOutputStream bos = new ByteArrayOutputStream();
CompressionOutputStream cos = null;
// write trivially compressable data
byte[] b = new byte[1 << 15];
Arrays.fill(b, (byte) 43);
try {
cos = codec.createOutputStream(bos, c);
cos.write(b);
} finally {
if (cos != null) {
cos.close();
}
}
byte[] outbytes = bos.toByteArray();
// verify data were not compressed
assertTrue("Compressed bytes contrary to configuration(NO_COMPRESSION)",
outbytes.length >= b.length);
}
示例6: testGzipCompressStreamReuseWithParam
import org.apache.hadoop.io.compress.zlib.ZlibCompressor.CompressionLevel; //导入依赖的package包/类
@Test
public void testGzipCompressStreamReuseWithParam() throws IOException {
Configuration conf = new Configuration(this.conf);
ZlibFactory
.setCompressionLevel(conf, CompressionLevel.BEST_COMPRESSION);
ZlibFactory.setCompressionStrategy(conf,
CompressionStrategy.HUFFMAN_ONLY);
resetStateTest(conf, seed, count,
"org.apache.hadoop.io.compress.GzipCodec");
}