Package weka.core.converters

Class AbstractFileLoader

java.lang.Object
weka.core.converters.AbstractLoader
weka.core.converters.AbstractFileLoader
All Implemented Interfaces:
Serializable, FileSourcedConverter, Loader, EnvironmentHandler, RevisionHandler
Direct Known Subclasses:
ArffLoader, C45Loader, CSVLoader, JSONLoader, LibSVMLoader, MatlabLoader, SerializedInstancesLoader, SVMLightLoader, XRFFLoader
public abstract class AbstractFileLoader extends AbstractLoader implements FileSourcedConverter, EnvironmentHandler
Abstract superclass for all file loaders.
Version:
$Revision: 14944 $
Author:
fracpete (fracpete at waikato dot ac dot nz)
See Also:

  • Field Details

    • FILE_EXTENSION_COMPRESSED

      public static String FILE_EXTENSION_COMPRESSED
      the extension for compressed files

  • Constructor Details

    • AbstractFileLoader

      public AbstractFileLoader()

  • Method Details

    • retrieveFile

      public File retrieveFile()
      get the File specified as the source
      Specified by:
      retrieveFile in interface FileSourcedConverter
      Returns:
      the source file

    • setFile

      public void setFile(File file) throws IOException
      sets the source File
      Specified by:
      setFile in interface FileSourcedConverter
      Parameters:
      file - the source file
      Throws:
      IOException - if an error occurs

    • setEnvironment

      public void setEnvironment(Environment env)
      Set the environment variables to use.
      Specified by:
      setEnvironment in interface EnvironmentHandler
      Parameters:
      env - the environment variables to use

    • reset

      public void reset() throws IOException
      Resets the loader ready to read a new data set
      Specified by:
      reset in interface Loader
      Overrides:
      reset in class AbstractLoader
      Throws:
      IOException - if something goes wrong

    • setSource

      public void setSource(File file) throws IOException
      Resets the Loader object and sets the source of the data set to be the supplied File object.
      Specified by:
      setSource in interface Loader
      Overrides:
      setSource in class AbstractLoader
      Parameters:
      file - the source file.
      Throws:
      IOException - if an error occurs

    • useRelativePathTipText

      public String useRelativePathTipText()
      Tip text suitable for displaying int the GUI
      Returns:
      a description of this property as a String

    • setUseRelativePath

      public void setUseRelativePath(boolean rp)
      Set whether to use relative rather than absolute paths
      Specified by:
      setUseRelativePath in interface FileSourcedConverter
      Parameters:
      rp - true if relative paths are to be used

    • getUseRelativePath

      public boolean getUseRelativePath()
      Gets whether relative paths are to be used
      Specified by:
      getUseRelativePath in interface FileSourcedConverter
      Returns:
      true if relative paths are to be used

    • runFileLoader

      public static void runFileLoader(AbstractFileLoader loader, String[] options)
      runs the given loader with the provided options
      Parameters:
      loader - the loader to run
      options - the commandline options, first argument must be the file to load