本文整理汇总了Java中org.apache.hadoop.io.IOUtils.NullOutputStream方法的典型用法代码示例。如果您正苦于以下问题：Java IOUtils.NullOutputStream方法的具体用法？Java IOUtils.NullOutputStream怎么用？Java IOUtils.NullOutputStream使用的例子？那么恭喜您, 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.IOUtils的用法示例。
在下文中一共展示了IOUtils.NullOutputStream方法的1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: getCompressedSize
import org.apache.hadoop.io.IOUtils; //导入方法依赖的package包/类
/**
* Find the size of compressed data assuming that buffer will be compressed
* using given algorithm.
* @param algo compression algorithm
* @param compressor compressor already requested from codec
* @param inputBuffer Array to be compressed.
* @param offset Offset to beginning of the data.
* @param length Length to be compressed.
* @return Size of compressed data in bytes.
* @throws IOException
*/
public static int getCompressedSize(Algorithm algo, Compressor compressor,
byte[] inputBuffer, int offset, int length) throws IOException {
DataOutputStream compressedStream = new DataOutputStream(
new IOUtils.NullOutputStream());
if (compressor != null) {
compressor.reset();
}
OutputStream compressingStream = null;
try {
compressingStream = algo.createCompressionStream(
compressedStream, compressor, 0);
compressingStream.write(inputBuffer, offset, length);
compressingStream.flush();
return compressedStream.size();
} finally {
if (compressingStream != null) compressingStream.close();
}
}