org.ranksys.formats.rec

Class MahoutRecommendationFormat<U,I>

java.lang.Object

org.ranksys.formats.rec.MahoutRecommendationFormat<U,I>

Type Parameters:

U - user type

I - item type

All Implemented Interfaces:

RecommendationFormat<U,I>

public class MahoutRecommendationFormat<U,I>
extends Object
implements RecommendationFormat<U,I>

Reader for Mahout-like recommendations. Path must be a directory.

Author:

Saúl Vargas (Saul@VargasSandoval.es)

Constructor Summary

Constructors

Constructor and Description
MahoutRecommendationFormat(Parser<U> uParser, Parser<I> iParser) Constructor.

Method Summary

Modifier and Type	Method and Description
RecommendationFormat.Reader<U,I>	getReader(File file) Gets a reader for a file.
RecommendationFormat.Reader<U,I>	getReader(InputStream in) Gets a reader for an input stream.
RecommendationFormat.Reader<U,I>	getReader(String path) Gets a reader for a file path.
RecommendationFormat.Writer<U,I>	getWriter(File file) Gets a writer for a file.
RecommendationFormat.Writer<U,I>	getWriter(OutputStream out) Gets a writer for an output stream.
RecommendationFormat.Writer<U,I>	getWriter(String path) Gets a writer for a file path.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.ranksys.formats.rec.RecommendationFormat

getReader, getWriter

Constructor Detail

MahoutRecommendationFormat

public MahoutRecommendationFormat(Parser<U> uParser,
                                  Parser<I> iParser)

Constructor.

Parameters:

uParser - user parser

iParser - item parser

Method Detail

getWriter

public RecommendationFormat.Writer<U,I> getWriter(String path)
                                           throws IOException

Description copied from interface: RecommendationFormat

Gets a writer for a file path.

Specified by:

getWriter in interface RecommendationFormat<U,I>

Parameters:

path - file path

Returns:

a recommendation writer

Throws:

IOException - if path does not exist or IO error

getWriter

public RecommendationFormat.Writer<U,I> getWriter(File file)
                                           throws IOException

Description copied from interface: RecommendationFormat

Gets a writer for a file.

Specified by:

getWriter in interface RecommendationFormat<U,I>

Parameters:

file - file

Returns:

a recommendation writer

Throws:

IOException - if path does not exist or IO error

getWriter

public RecommendationFormat.Writer<U,I> getWriter(OutputStream out)
                                           throws IOException

Description copied from interface: RecommendationFormat

Gets a writer for an output stream.

Specified by:

getWriter in interface RecommendationFormat<U,I>

Parameters:

out - output stream

Returns:

a recommendation writer

Throws:

IOException - if path does not exist or IO error

getReader

public RecommendationFormat.Reader<U,I> getReader(String path)
                                           throws IOException

Description copied from interface: RecommendationFormat

Gets a reader for a file path.

Specified by:

getReader in interface RecommendationFormat<U,I>

Parameters:

path - file path

Returns:

a recommendation reader

Throws:

IOException - when IO error

getReader

public RecommendationFormat.Reader<U,I> getReader(File file)
                                           throws IOException

Description copied from interface: RecommendationFormat

Gets a reader for a file.

Specified by:

getReader in interface RecommendationFormat<U,I>

Parameters:

file - file

Returns:

a recommendation reader

Throws:

IOException - when IO error

getReader

public RecommendationFormat.Reader<U,I> getReader(InputStream in)
                                           throws IOException

Description copied from interface: RecommendationFormat

Gets a reader for an input stream.

Specified by:

getReader in interface RecommendationFormat<U,I>

Parameters:

in - input stream

Returns:

a recommendation reader

Throws:

IOException - when IO error