org.apache.parquet.cli.commands

Class ColumnSizeCommand

java.lang.Object

org.apache.parquet.cli.BaseCommand

org.apache.parquet.cli.commands.ColumnSizeCommand

All Implemented Interfaces:

org.apache.hadoop.conf.Configurable, Command

public class ColumnSizeCommand
extends BaseCommand

Field Summary

Fields inherited from class org.apache.parquet.cli.BaseCommand

console

Constructor Summary

Constructors

Constructor and Description
ColumnSizeCommand(org.slf4j.Logger console)

Method Summary

Modifier and Type	Method and Description
Map<String,Float>	getColumnRatio(Map<String,Long> colSizes)
Map<String,Long>	getColumnSizeInBytes(org.apache.hadoop.fs.Path inputFile)
List<String>	getExamples() Returns a list of example uses.
int	run() Runs this Command.

Methods inherited from class org.apache.parquet.cli.BaseCommand

create, createWithChecksum, createWithNoOverwrite, defaultFS, getAvroSchema, getConf, loaderFor, loaderForJars, loaderForPaths, open, openDataFile, openSeekable, output, qualifiedPath, qualifiedURI, setConf

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ColumnSizeCommand

public ColumnSizeCommand(org.slf4j.Logger console)

Method Detail

run

public int run()
        throws IOException

Description copied from interface: Command

Runs this Command.

Returns:

a return code for the process, 0 indicates success.

Throws:

IOException - if there is an error while running the command

getExamples

public List<String> getExamples()

Description copied from interface: Command

Returns a list of example uses. Lines starting with '#' will not have the executable name added when formatting.

Returns:

a list of String examples

getColumnSizeInBytes

public Map<String,Long> getColumnSizeInBytes(org.apache.hadoop.fs.Path inputFile)
                                      throws IOException

Throws:

IOException

getColumnRatio

public Map<String,Float> getColumnRatio(Map<String,Long> colSizes)