edu.udo.cs.yale.example
Class AttributeParser

java.lang.Object
  edu.udo.cs.yale.example.AttributeParser

public class AttributeParser
extends java.lang.Object

Parses a file containing construction descriptions and adds the new attributes to the example set.

Version:

$Id: AttributeParser.java,v 2.21 2006/08/03 14:39:27 ingomierswa Exp $

Author:

Simon Fischer, Ingo Mierswa

Field Summary

private java.util.Map<java.lang.String,Attribute>	allAttributes Maps construction descriptions of all generated attributes (including intermediate attributes) to the attributes.
private ExampleTable	exampleTable The example table to which the attributes should be added.
static java.lang.String	NAME_CONSTRUCTION_DESC_SEP This string separates the name from the construction description of each attribute.
private java.util.List<Attribute>	newAttributes A list of the newly generated attributes specified in the file.

Constructor Summary

AttributeParser(ExampleTable et)

Method Summary

private Attribute	addAttribute(Attribute a) Adds a new attribute to the map.
private java.util.Collection<FeatureGenerator>	applicableGenerators() Returns a collection of feature generators that can generate the attributes that are not yet generated.
private boolean	argumentsAlreadyGenerated(Attribute a) Returns true if the example set already contains a.
void	generateAll(ExampleSet exampleSet) Generates new attributes as long as it is possible.
private static int	getClosingBracketIndex(java.lang.String string, int startIndex)
java.util.List	getNewAttributes() Returns a list of all parsed attributes.
Attribute	parse(java.lang.String string) Parses one line.
void	parseAll(java.io.Reader reader) Parses all lines.
private Attribute	parseAttribute(java.lang.String string)
private Attribute[]	parseAttributes(java.lang.String string) Recursively parses the string starting at the current position.

Methods inherited from class java.lang.Object

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

Field Detail

NAME_CONSTRUCTION_DESC_SEP

public static final java.lang.String NAME_CONSTRUCTION_DESC_SEP

This string separates the name from the construction description of each attribute.

See Also:

Constant Field Values

allAttributes

private java.util.Map<java.lang.String,Attribute> allAttributes

Maps construction descriptions of all generated attributes (including intermediate attributes) to the attributes.

newAttributes

private java.util.List<Attribute> newAttributes

A list of the newly generated attributes specified in the file.

exampleTable

private ExampleTable exampleTable

The example table to which the attributes should be added.

Constructor Detail

AttributeParser

public AttributeParser(ExampleTable et)

Method Detail

getNewAttributes

public java.util.List getNewAttributes()

Returns a list of all parsed attributes.

parse

public Attribute parse(java.lang.String string)
                throws GenerationException

Parses one line.

Throws:

GenerationException

parseAll

public void parseAll(java.io.Reader reader)
              throws java.io.IOException,
                     GenerationException

Parses all lines.

Throws:

java.io.IOException

GenerationException

addAttribute

private Attribute addAttribute(Attribute a)

Adds a new attribute to the map. If the map already contains an attribute with the same construction description, this attribute is returned.

getClosingBracketIndex

private static int getClosingBracketIndex(java.lang.String string,
                                          int startIndex)
                                   throws GenerationException

Throws:

GenerationException

parseAttribute

private Attribute parseAttribute(java.lang.String string)
                          throws GenerationException

Throws:

GenerationException

parseAttributes

private Attribute[] parseAttributes(java.lang.String string)
                             throws GenerationException

Recursively parses the string starting at the current position.

Throws:

GenerationException

applicableGenerators

private java.util.Collection<FeatureGenerator> applicableGenerators()
                                                             throws GenerationException

Returns a collection of feature generators that can generate the attributes that are not yet generated. The attributes are then removed from the map.

Throws:

GenerationException

argumentsAlreadyGenerated

private boolean argumentsAlreadyGenerated(Attribute a)

Returns true if the example set already contains a.

generateAll

public void generateAll(ExampleSet exampleSet)
                 throws GenerationException

Generates new attributes as long as it is possible.

Throws:

GenerationException