com.asakusafw.info.cli.generate.ddl

Class LocationMapper

java.lang.Object

com.asakusafw.info.cli.generate.ddl.LocationMapper

All Implemented Interfaces:

Function<LocationInfo,Optional<String>>

public class LocationMapper
extends Object
implements Function<LocationInfo,Optional<String>>

Maps LocationInfo to Hadoop file location.

Since:

0.10.0

Constructor Summary

Constructors

Constructor and Description
LocationMapper(Map<String,String> prefixMap) Creates a new instance.

Method Summary

Modifier and Type	Method and Description
Optional<String>	apply(LocationInfo location)
Optional<String>	findInvalidSequence(String location) Returns invalid sequence in the location.

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.function.Function

andThen, compose, identity

Constructor Detail

LocationMapper

public LocationMapper(Map<String,String> prefixMap)

Creates a new instance.

Parameters:

prefixMap - the base path prefix into Hadoop file location

Method Detail

apply

public Optional<String> apply(LocationInfo location)

Specified by:

apply in interface Function<LocationInfo,Optional<String>>

findInvalidSequence

public Optional<String> findInvalidSequence(String location)

Returns invalid sequence in the location.

Parameters:

location - the location

Returns:

invalid sequence in the location, or empty if it is valid