java.lang.Object
- weka.core.converters.ConverterUtils

All Implemented Interfaces:

java.io.Serializable, RevisionHandler
```
public class ConverterUtils
extends java.lang.Object
implements java.io.Serializable, RevisionHandler
```
Utility routines for the converter package.

Version:

$Revision: 6416 $

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.

Field Summary

Fields
Modifier and Type	Field	Description
`static java.lang.String`	`CORE_FILE_LOADERS`	the core loaders - hardcoded list necessary for RMI/Remote Experiments (comma-separated list).
`static java.lang.String`	`CORE_FILE_SAVERS`	the core savers - hardcoded list necessary for RMI/Remote Experiments (comma-separated list).

Constructor Summary

Constructors
Constructor Description

ConverterUtils()

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`static void`	`errms(java.io.StreamTokenizer tokenizer, java.lang.String theMsg)`	Throws error message with line number and last token read.
`static java.util.Vector<java.lang.String>`	`getFileLoaders()`	returns a vector with the classnames of all the file loaders.
`static java.util.Vector<java.lang.String>`	`getFileSavers()`	returns a vector with the classnames of all the file savers.
`static void`	`getFirstToken(java.io.StreamTokenizer tokenizer)`	Gets token, skipping empty lines.
`static AbstractFileLoader`	`getLoaderForExtension(java.lang.String extension)`	tries to determine the loader to use for this kind of extension, returns null if none can be found.
`static AbstractFileLoader`	`getLoaderForFile(java.io.File file)`	tries to determine the loader to use for this kind of file, returns null if none can be found.
`static AbstractFileLoader`	`getLoaderForFile(java.lang.String filename)`	tries to determine the loader to use for this kind of file, returns null if none can be found.
`java.lang.String`	`getRevision()`	Returns the revision string.
`static AbstractFileSaver`	`getSaverForExtension(java.lang.String extension)`	tries to determine the saver to use for this kind of extension, returns null if none can be found.
`static AbstractFileSaver`	`getSaverForFile(java.io.File file)`	tries to determine the saver to use for this kind of file, returns null if none can be found.
`static AbstractFileSaver`	`getSaverForFile(java.lang.String filename)`	tries to determine the saver to use for this kind of file, returns null if none can be found.
`static void`	`getToken(java.io.StreamTokenizer tokenizer)`	Gets token.
`static java.util.Vector<java.lang.String>`	`getURLFileLoaders()`	returns a vector with the classnames of all the URL file loaders.
`static AbstractFileLoader`	`getURLLoaderForExtension(java.lang.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(java.io.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(java.lang.String filename)`	tries to determine the URL loader to use for this kind of file, returns null if none can be found.
`static boolean`	`isCoreFileLoader(java.lang.String classname)`	checks whether the given class is one of the hardcoded core file loaders.
`static boolean`	`isCoreFileSaver(java.lang.String classname)`	checks whether the given class is one of the hardcoded core file savers.

Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - CORE_FILE_LOADERS
```
public static final java.lang.String CORE_FILE_LOADERS
```
    the core loaders - hardcoded list necessary for RMI/Remote Experiments (comma-separated list).
  - CORE_FILE_SAVERS
```
public static final java.lang.String CORE_FILE_SAVERS
```
    the core savers - hardcoded list necessary for RMI/Remote Experiments (comma-separated list).
- Constructor Detail
  - ConverterUtils
```
public ConverterUtils()
```
- Method Detail
  - getFirstToken
```
public static void getFirstToken(java.io.StreamTokenizer tokenizer)
                          throws java.io.IOException
```
    Gets token, skipping empty lines.
    
    Parameters:
    
    tokenizer - the stream tokenizer
    
    Throws:
    
    java.io.IOException - if reading the next token fails
  - getToken
```
public static void getToken(java.io.StreamTokenizer tokenizer)
                     throws java.io.IOException
```
    Gets token.
    
    Parameters:
    
    tokenizer - the stream tokenizer
    
    Throws:
    
    java.io.IOException - if reading the next token fails
  - errms
```
public static void errms(java.io.StreamTokenizer tokenizer,
                         java.lang.String theMsg)
                  throws java.io.IOException
```
    Throws error message with line number and last token read.
    
    Parameters:
    
    theMsg - the error message to be thrown
    
    tokenizer - the stream tokenizer
    
    Throws:
    
    java.io.IOException - containing the error message
  - isCoreFileLoader
```
public static boolean isCoreFileLoader(java.lang.String classname)
```
    checks whether the given class is one of the hardcoded core file loaders.
    
    Parameters:
    
    classname - the class to check
    
    Returns:
    
    true if the class is one of the core loaders
    
    See Also:
    
    CORE_FILE_LOADERS
  - getFileLoaders
```
public static java.util.Vector<java.lang.String> getFileLoaders()
```
    returns a vector with the classnames of all the file loaders.
    
    Returns:
    
    the classnames of the loaders
  - getLoaderForFile
```
public static AbstractFileLoader getLoaderForFile(java.lang.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
  - getLoaderForFile
```
public static AbstractFileLoader getLoaderForFile(java.io.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
  - getLoaderForExtension
```
public static AbstractFileLoader getLoaderForExtension(java.lang.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 java.util.Vector<java.lang.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(java.lang.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
  - getURLLoaderForFile
```
public static AbstractFileLoader getURLLoaderForFile(java.io.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
  - getURLLoaderForExtension
```
public static AbstractFileLoader getURLLoaderForExtension(java.lang.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
  - isCoreFileSaver
```
public static boolean isCoreFileSaver(java.lang.String classname)
```
    checks whether the given class is one of the hardcoded core file savers.
    
    Parameters:
    
    classname - the class to check
    
    Returns:
    
    true if the class is one of the core savers
    
    See Also:
    
    CORE_FILE_SAVERS
  - getFileSavers
```
public static java.util.Vector<java.lang.String> getFileSavers()
```
    returns a vector with the classnames of all the file savers.
    
    Returns:
    
    the classnames of the savers
  - getSaverForFile
```
public static AbstractFileSaver getSaverForFile(java.lang.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
  - getSaverForFile
```
public static AbstractFileSaver getSaverForFile(java.io.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
  - getSaverForExtension
```
public static AbstractFileSaver getSaverForExtension(java.lang.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
  - getRevision
```
public java.lang.String getRevision()
```
    Returns the revision string.
    
    Specified by:
    
    getRevision in interface RevisionHandler
    
    Returns:
    
    the revision

Class ConverterUtils

Nested Class Summary

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

CORE_FILE_LOADERS

CORE_FILE_SAVERS

Constructor Detail

ConverterUtils

Method Detail

getFirstToken

getToken

errms

isCoreFileLoader

getFileLoaders

getLoaderForFile

getLoaderForFile

getLoaderForExtension

getURLFileLoaders

getURLLoaderForFile

getURLLoaderForFile

getURLLoaderForExtension

isCoreFileSaver

getFileSavers

getSaverForFile

getSaverForFile

getSaverForExtension

getRevision