de.lmu.ifi.dbs.elki.datasource

Class GeneratorXMLDatabaseConnection

java.lang.Object

de.lmu.ifi.dbs.elki.datasource.GeneratorXMLDatabaseConnection

All Implemented Interfaces:

DatabaseConnection, InspectionUtilFrequentlyScanned, Parameterizable

public class GeneratorXMLDatabaseConnection
extends Object
implements DatabaseConnection

Data source from an XML specification. This data source will generate random (or pseudo-random, fixed seeds are supported) data sets that satisfy a given specification file.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	GeneratorXMLDatabaseConnection.Parameterizer Parameterization class.

Field Summary

Fields

Modifier and Type	Field and Description
private Random	clusterRandom Random generator used for initializing cluster generators.
static OptionID	CONFIGFILE_ID Parameter to give the configuration file
private static String	GENERATOR_SCHEMA_FILE File name of the generators XML Schema file.
private static Logging	logger Logger
static OptionID	RANDOMSEED_ID Parameter to give the configuration file
static OptionID	SIZE_SCALE_ID Parameter to give the configuration file
(package private) double	sizescale Parameter for scaling the cluster sizes.
(package private) File	specfile The configuration file.
private Boolean	testAgainstModel Set testAgainstModel flag
static Pattern	WHITESPACE_PATTERN A pattern defining whitespace.

Constructor Summary

Constructors

Constructor and Description
GeneratorXMLDatabaseConnection(File specfile, double sizescale, Random clusterRandom) Constructor.

Method Summary

Methods

Modifier and Type	Method and Description
MultipleObjectsBundle	loadData() Returns the initial data for a database.
private GeneratorMain	loadXMLSpecification() Load the XML configuration file.
private Vector	parseVector(String s) Parse a string into a vector.
private void	processElementClipping(GeneratorSingleCluster cluster, Node cur) Process a 'clipping' Element in the XML stream.
private void	processElementCluster(GeneratorMain gen, Node cur) Process a 'cluster' Element in the XML stream.
private void	processElementDataset(GeneratorMain gen, Node cur) Process a 'dataset' Element in the XML stream.
private void	processElementGamma(GeneratorSingleCluster cluster, Node cur) Process a 'gamma' Element in the XML stream.
private void	processElementNormal(GeneratorSingleCluster cluster, Node cur) Process a 'normal' Element in the XML stream.
private void	processElementPoint(List<Vector> points, Node cur) Parse a 'point' element (point vector for a static cluster)
private void	processElementRotate(GeneratorSingleCluster cluster, Node cur) Process a 'rotate' Element in the XML stream.
private void	processElementStatic(GeneratorMain gen, Node cur) Process a 'static' cluster Element in the XML stream.
private void	processElementTranslate(GeneratorSingleCluster cluster, Node cur) Process a 'translate' Element in the XML stream.
private void	processElementUniform(GeneratorSingleCluster cluster, Node cur) Process a 'uniform' Element in the XML stream.

Methods inherited from class java.lang.Object

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

Field Detail

logger

private static Logging logger

Logger

WHITESPACE_PATTERN

public static final Pattern WHITESPACE_PATTERN

A pattern defining whitespace.

CONFIGFILE_ID

public static final OptionID CONFIGFILE_ID

Parameter to give the configuration file

RANDOMSEED_ID

public static final OptionID RANDOMSEED_ID

Parameter to give the configuration file

SIZE_SCALE_ID

public static final OptionID SIZE_SCALE_ID

Parameter to give the configuration file

GENERATOR_SCHEMA_FILE

private static final String GENERATOR_SCHEMA_FILE

File name of the generators XML Schema file.

specfile

File specfile

The configuration file.

sizescale

double sizescale

Parameter for scaling the cluster sizes.

clusterRandom

private Random clusterRandom

Random generator used for initializing cluster generators.

testAgainstModel

private Boolean testAgainstModel

Set testAgainstModel flag

Constructor Detail

GeneratorXMLDatabaseConnection

public GeneratorXMLDatabaseConnection(File specfile,
                              double sizescale,
                              Random clusterRandom)

Constructor.

Parameters:

specfile - Specification file

sizescale - Size scaling

clusterRandom - Random number generator

Method Detail

loadData

public MultipleObjectsBundle loadData()

Description copied from interface: DatabaseConnection

Returns the initial data for a database.

Specified by:

loadData in interface DatabaseConnection

Returns:

a database object bundle

loadXMLSpecification

private GeneratorMain loadXMLSpecification()
                                    throws UnableToComplyException

Load the XML configuration file.

Returns:

Generator

Throws:

UnableToComplyException

processElementDataset

private void processElementDataset(GeneratorMain gen,
                         Node cur)
                            throws UnableToComplyException

Process a 'dataset' Element in the XML stream.

Parameters:

gen - Generator

cur - Current document nod

Throws:

UnableToComplyException

processElementCluster

private void processElementCluster(GeneratorMain gen,
                         Node cur)
                            throws UnableToComplyException

Process a 'cluster' Element in the XML stream.

Parameters:

gen - Generator

cur - Current document nod

Throws:

UnableToComplyException

processElementUniform

private void processElementUniform(GeneratorSingleCluster cluster,
                         Node cur)
                            throws UnableToComplyException

Process a 'uniform' Element in the XML stream.

Parameters:

cluster -

cur - Current document nod

Throws:

UnableToComplyException

processElementNormal

private void processElementNormal(GeneratorSingleCluster cluster,
                        Node cur)
                           throws UnableToComplyException

Process a 'normal' Element in the XML stream.

Parameters:

cluster -

cur - Current document nod

Throws:

UnableToComplyException

processElementGamma

private void processElementGamma(GeneratorSingleCluster cluster,
                       Node cur)
                          throws UnableToComplyException

Process a 'gamma' Element in the XML stream.

Parameters:

cluster -

cur - Current document nod

Throws:

UnableToComplyException

processElementRotate

private void processElementRotate(GeneratorSingleCluster cluster,
                        Node cur)
                           throws UnableToComplyException

Process a 'rotate' Element in the XML stream.

Parameters:

cluster -

cur - Current document nod

Throws:

UnableToComplyException

processElementTranslate

private void processElementTranslate(GeneratorSingleCluster cluster,
                           Node cur)
                              throws UnableToComplyException

Process a 'translate' Element in the XML stream.

Parameters:

cluster -

cur - Current document nod

Throws:

UnableToComplyException

processElementClipping

private void processElementClipping(GeneratorSingleCluster cluster,
                          Node cur)
                             throws UnableToComplyException

Process a 'clipping' Element in the XML stream.

Parameters:

cluster -

cur - Current document nod

Throws:

UnableToComplyException

processElementStatic

private void processElementStatic(GeneratorMain gen,
                        Node cur)
                           throws UnableToComplyException

Process a 'static' cluster Element in the XML stream.

Parameters:

gen - Generator

cur - Current document nod

Throws:

UnableToComplyException

processElementPoint

private void processElementPoint(List<Vector> points,
                       Node cur)
                          throws UnableToComplyException

Parse a 'point' element (point vector for a static cluster)

Parameters:

points - current list of points (to append to)

cur - Current document nod

Throws:

UnableToComplyException

parseVector

private Vector parseVector(String s)
                    throws UnableToComplyException

Parse a string into a vector. TODO: move this into utility package?

Parameters:

s - String to parse

Returns:

Vector

Throws:

UnableToComplyException