Package weka.core.converters
Class ConverterUtils.DataSink
- java.lang.Object
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- weka.core.converters.ConverterUtils.DataSink
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- All Implemented Interfaces:
java.io.Serializable
,RevisionHandler
- Enclosing class:
- ConverterUtils
public static class ConverterUtils.DataSink extends java.lang.Object implements java.io.Serializable, RevisionHandler
Helper class for saving data to files. Via the ConverterUtils class it determines which converter to use for saving the data. It is the logical counterpart toDataSource
.- Version:
- $Revision: 6416 $
- Author:
- FracPete (fracpete at waikato dot ac dot nz)
- See Also:
ConverterUtils.DataSource
, Serialized Form
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Constructor Summary
Constructors Constructor Description DataSink(java.io.OutputStream stream)
initializes the sink to save the data in the stream (always in ARFF format).DataSink(java.lang.String filename)
initializes the sink to save the data to the given file.DataSink(Saver saver)
initializes the sink to save the data to the given Saver (expected to be fully configured).
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description java.lang.String
getRevision()
Returns the revision string.static void
main(java.lang.String[] args)
for testing only - takes a data file as input and a data file for the output.static void
write(java.io.OutputStream stream, Instances data)
writes the data to the given stream (always in ARFF format).static void
write(java.lang.String filename, Instances data)
writes the data to the given file.static void
write(Saver saver, Instances data)
writes the data via the given saver.void
write(Instances data)
writes the given data either via the saver or to the defined output stream (depending on the constructor).
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Constructor Detail
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DataSink
public DataSink(java.lang.String filename) throws java.lang.Exception
initializes the sink to save the data to the given file.- Parameters:
filename
- the file to save data to- Throws:
java.lang.Exception
- if set of saver fails
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DataSink
public DataSink(Saver saver)
initializes the sink to save the data to the given Saver (expected to be fully configured).- Parameters:
saver
- the saver to use for saving the data
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DataSink
public DataSink(java.io.OutputStream stream)
initializes the sink to save the data in the stream (always in ARFF format).- Parameters:
stream
- the output stream to use for storing the data in ARFF format
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Method Detail
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write
public void write(Instances data) throws java.lang.Exception
writes the given data either via the saver or to the defined output stream (depending on the constructor). In case of the stream, the stream is only flushed, but not closed.- Parameters:
data
- the data to save- Throws:
java.lang.Exception
- if saving fails
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write
public static void write(java.lang.String filename, Instances data) throws java.lang.Exception
writes the data to the given file.- Parameters:
filename
- the file to write the data todata
- the data to store- Throws:
java.lang.Exception
- if writing fails
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write
public static void write(Saver saver, Instances data) throws java.lang.Exception
writes the data via the given saver.- Parameters:
saver
- the saver to use for writing the datadata
- the data to store- Throws:
java.lang.Exception
- if writing fails
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write
public static void write(java.io.OutputStream stream, Instances data) throws java.lang.Exception
writes the data to the given stream (always in ARFF format).- Parameters:
stream
- the stream to write the data to (ARFF format)data
- the data to store- Throws:
java.lang.Exception
- if writing fails
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main
public static void main(java.lang.String[] args) throws java.lang.Exception
for testing only - takes a data file as input and a data file for the output.- Parameters:
args
- the commandline arguments- Throws:
java.lang.Exception
- if something goes wrong
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getRevision
public java.lang.String getRevision()
Returns the revision string.- Specified by:
getRevision
in interfaceRevisionHandler
- Returns:
- the revision
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