Package weka.core.converters

Class ConverterUtils

java.lang.Object

weka.core.converters.ConverterUtils

All Implemented Interfaces:

Serializable, RevisionHandler

public class ConverterUtils
extends Object
implements Serializable, RevisionHandler

Utility routines for the converter package.

Version:

$Revision$

Author:

Mark Hall (mhall@cs.waikato.ac.nz), FracPete (fracpete at waikato dot ac dot nz)

See Also:

Serializable, Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	ConverterUtils.DataSink	Helper class for saving data to files.
static class	ConverterUtils.DataSource	Helper class for loading data from files and URLs.

Constructor Summary

Constructors

Constructor	Description
ConverterUtils()

Method Summary

Modifier and Type	Method	Description
static void	errms(StreamTokenizer tokenizer, String theMsg)	Throws error message with line number and last token read.
static Vector<String>	getFileLoaders()	returns a vector with the classnames of all the file loaders.
static Vector<String>	getFileSavers()	returns a vector with the classnames of all the file savers.
static void	getFirstToken(StreamTokenizer tokenizer)	Gets token, skipping empty lines.
static AbstractFileLoader	getLoaderForExtension(String extension)	tries to determine the loader to use for this kind of extension, returns null if none can be found.
static AbstractFileLoader	getLoaderForFile(File file)	tries to determine the loader to use for this kind of file, returns null if none can be found.
static AbstractFileLoader	getLoaderForFile(String filename)	tries to determine the loader to use for this kind of file, returns null if none can be found.
static List<AbstractFileLoader>	getLoadersForExtension(String extension)	tries to determine the loader to use for this kind of extension, returns null if none can be found.
static List<AbstractFileLoader>	getLoadersForFile(File file)	tries to determine the loaders to use for this kind of file.
static List<AbstractFileLoader>	getLoadersForFile(String filename)	tries to determine the loaders to use for this kind of file.
String	getRevision()	Returns the revision string.
static AbstractFileSaver	getSaverForExtension(String extension)	tries to determine the saver to use for this kind of extension, returns null if none can be found.
static AbstractFileSaver	getSaverForFile(File file)	tries to determine the saver to use for this kind of file, returns null if none can be found.
static AbstractFileSaver	getSaverForFile(String filename)	tries to determine the saver to use for this kind of file, returns null if none can be found.
static List<AbstractFileSaver>	getSaversForExtension(String extension)	tries to determine the savers to use for this kind of extension.
static List<AbstractFileSaver>	getSaversForFile(File file)	tries to determine the savers to use for this kind of file.
static List<AbstractFileSaver>	getSaversForFile(String filename)	tries to determine the savers to use for this kind of file.
static void	getToken(StreamTokenizer tokenizer)	Gets token.
static Vector<String>	getURLFileLoaders()	returns a vector with the classnames of all the URL file loaders.
static AbstractFileLoader	getURLLoaderForExtension(String extension)	tries to determine the URL loader to use for this kind of extension, returns null if none can be found.
static AbstractFileLoader	getURLLoaderForFile(File file)	tries to determine the URL loader to use for this kind of file, returns null if none can be found.
static AbstractFileLoader	getURLLoaderForFile(String filename)	tries to determine the URL loader to use for this kind of file, returns null if none can be found.
static List<AbstractFileLoader>	getURLLoadersForExtension(String extension)	tries to determine the URL loaders to use for this kind of extension.
static List<AbstractFileLoader>	getURLLoadersForFile(File file)	tries to determine the URL loaders to use for this kind of file.
static List<AbstractFileLoader>	getURLLoadersForFile(String filename)	tries to determine the URL loader to use for this kind of file.
static void	initialize()

Methods inherited from class java.lang.Object

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

Constructor Detail

ConverterUtils

public ConverterUtils()

Method Detail

initialize

public static void initialize()

getFirstToken

public static void getFirstToken(StreamTokenizer tokenizer)
                          throws IOException

Gets token, skipping empty lines.

Parameters:

tokenizer - the stream tokenizer

Throws:

IOException - if reading the next token fails

getToken

public static void getToken(StreamTokenizer tokenizer)
                     throws IOException

Gets token.

Parameters:

tokenizer - the stream tokenizer

Throws:

IOException - if reading the next token fails

errms

public static void errms(StreamTokenizer tokenizer,
                         String theMsg)
                  throws IOException

Throws error message with line number and last token read.

Parameters:

theMsg - the error message to be thrown

tokenizer - the stream tokenizer

Throws:

IOException - containing the error message

getFileLoaders

public static Vector<String> getFileLoaders()

returns a vector with the classnames of all the file loaders.

Returns:

the classnames of the loaders

getLoaderForFile

public static AbstractFileLoader getLoaderForFile(String filename)

tries to determine the loader to use for this kind of file, returns null if none can be found.

Parameters:

filename - the file to return a converter for

Returns:

the converter if one was found, null otherwise

getLoadersForFile

public static List<AbstractFileLoader> getLoadersForFile(String filename)

tries to determine the loaders to use for this kind of file.

Parameters:

filename - the file to return converters for

Returns:

the converters, list is empty if none found

getLoaderForFile

public static AbstractFileLoader getLoaderForFile(File file)

tries to determine the loader to use for this kind of file, returns null if none can be found.

Parameters:

file - the file to return a converter for

Returns:

the converter if one was found, null otherwise

getLoadersForFile

public static List<AbstractFileLoader> getLoadersForFile(File file)

tries to determine the loaders to use for this kind of file.

Parameters:

file - the file to return converters for

Returns:

the converters, empty list if none found

getLoaderForExtension

public static AbstractFileLoader getLoaderForExtension(String extension)

tries to determine the loader to use for this kind of extension, returns null if none can be found.

Parameters:

extension - the file extension to return a converter for

Returns:

the converter if one was found, null otherwise

getLoadersForExtension

public static List<AbstractFileLoader> getLoadersForExtension(String extension)

tries to determine the loader to use for this kind of extension, returns null if none can be found.

Parameters:

extension - the file extension to return a converter for

Returns:

the converter if one was found, null otherwise

getURLFileLoaders

public static Vector<String> getURLFileLoaders()

returns a vector with the classnames of all the URL file loaders.

Returns:

the classnames of the loaders

getURLLoaderForFile

public static AbstractFileLoader getURLLoaderForFile(String filename)

tries to determine the URL loader to use for this kind of file, returns null if none can be found.

Parameters:

filename - the file to return a URL converter for

Returns:

the converter if one was found, null otherwise

getURLLoadersForFile

public static List<AbstractFileLoader> getURLLoadersForFile(String filename)

tries to determine the URL loader to use for this kind of file.

Parameters:

filename - the file to return URL converters for

Returns:

the converters, empty list if none found

getURLLoaderForFile

public static AbstractFileLoader getURLLoaderForFile(File file)

tries to determine the URL loader to use for this kind of file, returns null if none can be found.

Parameters:

file - the file to return a URL converter for

Returns:

the converter if one was found, null otherwise

getURLLoadersForFile

public static List<AbstractFileLoader> getURLLoadersForFile(File file)

tries to determine the URL loaders to use for this kind of file.

Parameters:

file - the file to return URL converters for

Returns:

the converters, empty list if none found

getURLLoaderForExtension

public static AbstractFileLoader getURLLoaderForExtension(String extension)

tries to determine the URL loader to use for this kind of extension, returns null if none can be found.

Parameters:

extension - the file extension to return a URL converter for

Returns:

the converter if one was found, null otherwise

getURLLoadersForExtension

public static List<AbstractFileLoader> getURLLoadersForExtension(String extension)

tries to determine the URL loaders to use for this kind of extension.

Parameters:

extension - the file extension to return URL converters for

Returns:

the converters, empty list of none found

getFileSavers

public static Vector<String> getFileSavers()

returns a vector with the classnames of all the file savers.

Returns:

the classnames of the savers

getSaverForFile

public static AbstractFileSaver getSaverForFile(String filename)

tries to determine the saver to use for this kind of file, returns null if none can be found.

Parameters:

filename - the file to return a converter for

Returns:

the converter if one was found, null otherwise

getSaversForFile

public static List<AbstractFileSaver> getSaversForFile(String filename)

tries to determine the savers to use for this kind of file.

Parameters:

filename - the file to return converters for

Returns:

the converters, empty list if none found

getSaverForFile

public static AbstractFileSaver getSaverForFile(File file)

tries to determine the saver to use for this kind of file, returns null if none can be found.

Parameters:

file - the file to return a converter for

Returns:

the converter if one was found, null otherwise

getSaversForFile

public static List<AbstractFileSaver> getSaversForFile(File file)

tries to determine the savers to use for this kind of file.

Parameters:

file - the file to return converters for

Returns:

the converters, empty list if none found

getSaverForExtension

public static AbstractFileSaver getSaverForExtension(String extension)

tries to determine the saver to use for this kind of extension, returns null if none can be found.

Parameters:

extension - the file extension to return a converter for

Returns:

the converter if one was found, null otherwise

getSaversForExtension

public static List<AbstractFileSaver> getSaversForExtension(String extension)

tries to determine the savers to use for this kind of extension.

Parameters:

extension - the file extension to return converters for

Returns:

the converters, empty list if none found

getRevision

public String getRevision()

Returns the revision string.

Specified by:

getRevision in interface RevisionHandler

Returns:

the revision