Package weka.core.converters

Class 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: 14285 $
    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

      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 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​(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

      • 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

      • 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