package com.manning.hip.ch5;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.io.IOUtils;
import org.apache.hadoop.io.compress.CompressionCodec;
import org.apache.hadoop.util.ReflectionUtils;
import java.io.InputStream;
import java.io.OutputStream;
public class CompressedFileWriteFromLocal {
public static void main(String... args) throws Exception {
Configuration config = new Configuration();
FileSystem hdfs = FileSystem.get(config);
Class<?> codecClass = Class.forName(args[0]);
CompressionCodec codec = (CompressionCodec)
ReflectionUtils.newInstance(codecClass, config);
InputStream is = FileSystem.getLocal(config).open(new Path(args[1]));
OutputStream os = hdfs.create(
new Path(args[2] + codec.getDefaultExtension()));
OutputStream cos = codec.createOutputStream(os);
IOUtils.copyBytes(is, cos, config, true);
IOUtils.closeStream(os);
IOUtils.closeStream(is);
}
}