本文整理汇总了Java中org.apache.hadoop.io.compress.zlib.ZlibFactory.setCompressionLevel方法的典型用法代码示例。如果您正苦于以下问题：Java ZlibFactory.setCompressionLevel方法的具体用法？Java ZlibFactory.setCompressionLevel怎么用？Java ZlibFactory.setCompressionLevel使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类org.apache.hadoop.io.compress.zlib.ZlibFactory的用法示例。
在下文中一共展示了ZlibFactory.setCompressionLevel方法的5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: testGzipCodecWithParam
import org.apache.hadoop.io.compress.zlib.ZlibFactory; //导入方法依赖的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2: gzipReinitTest
import org.apache.hadoop.io.compress.zlib.ZlibFactory; //导入方法依赖的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3: codecTestWithNOCompression
import org.apache.hadoop.io.compress.zlib.ZlibFactory; //导入方法依赖的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4: testGzipCompressStreamReuseWithParam
import org.apache.hadoop.io.compress.zlib.ZlibFactory; //导入方法依赖的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");
}
示例5: testGzipCodecWithParam
import org.apache.hadoop.io.compress.zlib.ZlibFactory; //导入方法依赖的package包/类
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");
}