water.parser
Class PMMLParser

java.lang.Object
  water.parser.PMMLParser

public class PMMLParser
extends java.lang.Object

Parse PMML models Full recursive-descent style parsing. MUCH easier to track the control flows than a SAX-style parser, and does not require the entire doc like a DOM-style. More tightly tied to the XML structure, but in theory PMML is a multi-vendor standard and fairly stable. Like a good R-D parser, uses a separate function for parsing each XML element. Each function expects to be at a particular parse-point (generally after the openning '<' and before the tag is parsed), and always leaves the parse just after the close-tag '>'. The semantic interpretation is then interleaved with the parsing, with higher levels passing down needed info to lower element levels, and lower levels directly returning results to the higher levels.

Nested Class Summary

static class	PMMLParser.And
static class	PMMLParser.BooleanOperators
static class	PMMLParser.Comparison
static class	PMMLParser.CompoundPredicate
static class	PMMLParser.DataTypes Features datatypes promoted by PMML spec.
static class	PMMLParser.Equals
static class	PMMLParser.GreaterOrEqual
static class	PMMLParser.GreaterThan
static class	PMMLParser.IsIn
static class	PMMLParser.IsMissing
static class	PMMLParser.IsNotIn
static class	PMMLParser.LessOrEqual Less or equal
static class	PMMLParser.LessThan
static class	PMMLParser.Operators
static class	PMMLParser.Or
static class	PMMLParser.ParseException
static class	PMMLParser.Predicate
static class	PMMLParser.True

Field Summary

java.util.HashMap<java.lang.String,java.lang.String[]>	_enums
java.util.HashMap<java.lang.String,PMMLParser.DataTypes>	_types

Method Summary

java.util.HashMap<java.lang.String,java.lang.String>	attrs()
PMMLParser	barf(char tok, char c)
PMMLParser	expect(char tok)
PMMLParser	expect(java.lang.String toks)
int	get()
static double	getBoolean(java.lang.Comparable o)
static double	getBoolean(java.util.HashMap<java.lang.String,java.lang.Comparable> row, java.lang.String s)
static double	getNumber(java.lang.Comparable o)
static double	getNumber(java.util.HashMap<java.lang.String,java.lang.Comparable> row, java.lang.String s)
static java.lang.String	getString(java.lang.Comparable o)
static java.lang.String	getString(java.util.HashMap<java.lang.String,java.lang.Comparable> row, java.lang.String s)
static ScoreModel	parse(java.io.InputStream is)
int	peek()
PMMLParser	pGeneric(java.lang.String hdr)
PMMLParser.Predicate	pPredicate()
int	qget()
void	skipAttrs()
PMMLParser	skipWS()
java.lang.String	token()

Methods inherited from class java.lang.Object

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

Field Detail

_types

public final java.util.HashMap<java.lang.String,PMMLParser.DataTypes> _types

_enums

public final java.util.HashMap<java.lang.String,java.lang.String[]> _enums

Method Detail

parse

public static ScoreModel parse(java.io.InputStream is)

pGeneric

public PMMLParser pGeneric(java.lang.String hdr)

pPredicate

public PMMLParser.Predicate pPredicate()

get

public int get()

peek

public int peek()

qget

public int qget()

skipWS

public PMMLParser skipWS()

expect

public PMMLParser expect(char tok)

expect

public PMMLParser expect(java.lang.String toks)

barf

public PMMLParser barf(char tok,
                       char c)

token

public java.lang.String token()

attrs

public java.util.HashMap<java.lang.String,java.lang.String> attrs()

skipAttrs

public void skipAttrs()

getNumber

public static double getNumber(java.util.HashMap<java.lang.String,java.lang.Comparable> row,
                               java.lang.String s)

getNumber

public static double getNumber(java.lang.Comparable o)

getBoolean

public static double getBoolean(java.util.HashMap<java.lang.String,java.lang.Comparable> row,
                                java.lang.String s)

getBoolean

public static double getBoolean(java.lang.Comparable o)

getString

public static java.lang.String getString(java.util.HashMap<java.lang.String,java.lang.Comparable> row,
                                         java.lang.String s)

getString

public static java.lang.String getString(java.lang.Comparable o)