de.lmu.ifi.dbs.elki.application

Class AbstractApplication

java.lang.Object

de.lmu.ifi.dbs.elki.application.AbstractApplication

All Implemented Interfaces:

Parameterizable

Direct Known Subclasses:

CacheDoubleDistanceInOnDiskMatrix, CacheDoubleDistanceKNNLists, CacheDoubleDistanceRangeQueries, CacheFloatDistanceInOnDiskMatrix, ComputeKNNOutlierScores, ComputeSingleColorHistogram, ConvertToBundleApplication, GeneratorXMLSpec, GreedyEnsembleExperiment, KDDCLIApplication, MiniGUI, MultiStepGUI, VisualizeGeodesicDistances, VisualizePairwiseGainMatrix

public abstract class AbstractApplication
extends Object
implements Parameterizable

AbstractApplication sets the values for flags verbose and help.

Any Wrapper class that makes use of these flags may extend this class. Beware to make correct use of parameter settings via optionHandler as commented with constructor and methods.

Nested Class Summary

Nested Classes

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

Field Summary

Fields

Modifier and Type	Field and Description
static String	INFORMATION Information for citation and version.
private static Logging	LOG We need a static logger in this class, for code used in "main" methods.
private static String	NEWLINE The newline string according to system.

Constructor Summary

Constructors

Constructor and Description
AbstractApplication() Constructor.

Method Summary

Methods

Modifier and Type	Method and Description
private static void	printDescription(Class<?> descriptionClass) Print the description for the given parameter
protected static void	printErrorMessage(Exception e) Print an error message for the given error.
abstract void	run() Runs the application.
static void	runCLIApplication(Class<?> cls, String[] args) Generic command line invocation.
static String	usage(Collection<Pair<Object,Parameter<?>>> options) Returns a usage message, explaining all known options

Methods inherited from class java.lang.Object

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

Field Detail

LOG

private static final Logging LOG

We need a static logger in this class, for code used in "main" methods.

NEWLINE

private static final String NEWLINE

The newline string according to system.

INFORMATION

public static final String INFORMATION

Information for citation and version.

Constructor Detail

AbstractApplication

public AbstractApplication()

Constructor.

Method Detail

runCLIApplication

public static void runCLIApplication(Class<?> cls,
                     String[] args)

Generic command line invocation. Refactored to have a central place for outermost exception handling.

Parameters:

cls - Application class to run.

args - the arguments to run this application with

usage

public static String usage(Collection<Pair<Object,Parameter<?>>> options)

Returns a usage message, explaining all known options

Parameters:

options - Options to show in usage.

Returns:

a usage message explaining all known options

printErrorMessage

protected static void printErrorMessage(Exception e)

Print an error message for the given error.

Parameters:

e - Error Exception.

printDescription

private static void printDescription(Class<?> descriptionClass)

Print the description for the given parameter

run

public abstract void run()
                  throws UnableToComplyException

Runs the application.

Throws:

UnableToComplyException - if an error occurs during running the application