settings = new ArrayList<>();
for(SettingsResult sr : ResultUtil.getSettingsResults(result)) {
settings.addAll(sr.getSettings());
}
String algorithm = null;
String distance = null;
String dataset = null;
for(TrackedParameter setting : settings) {
Parameter param = setting.getParameter();
OptionID option = param.getOptionID();
String value = param.isDefined() ? param.getValueAsString() : null;
if(option.equals(AlgorithmStep.Parameterizer.ALGORITHM_ID)) {
algorithm = value;
}
if(option.equals(DistanceBasedAlgorithm.DISTANCE_FUNCTION_ID)) {
distance = value;
}
if(option.equals(FileBasedDatabaseConnection.Parameterizer.INPUT_ID)) {
dataset = value;
}
}
StringBuilder buf = new StringBuilder();
if(algorithm != null) {
buf.append(shortenClassname(algorithm.split(",")[0], '.'));
}
if(distance != null) {
if(buf.length() > 0) {
buf.append(" using ");
}
buf.append(shortenClassname(distance, '.'));
}
if(dataset != null) {
if(buf.length() > 0) {
buf.append(" on ");
}
buf.append(shortenClassname(dataset, File.separatorChar));
}
if(buf.length() > 0) {
return buf.toString();
}
return null;
}
/**
* Shorten the class name.
*
* @param nam Class name
* @param c Splitting character
* @return Shortened name
*/
protected static String shortenClassname(String nam, char c) {
final int lastdot = nam.lastIndexOf(c);
if(lastdot >= 0) {
nam = nam.substring(lastdot + 1);
}
return nam;
}
/**
* Parameterization class.
*
* @author Erich Schubert
*
* @apiviz.exclude
*/
public static class Parameterizer extends AbstractParameterizer {
/**
* Parameter to get the style properties file.
*
*
* Key: -visualizer.stylesheet
*
* Default: default properties file
* included stylesheets:
*
* - classic
* - default
* - greyscale
* - neon
* - presentation
* - print
*
* These are {@code *.properties} files in the package
* {@link de.lmu.ifi.dbs.elki.visualization.style}.
*
*/
public static final OptionID STYLELIB_ID = new OptionID("visualizer.stylesheet", "Style properties file to use, included properties: classic, default, greyscale, neon, presentation, print");
/**
* Parameter to enable visualizers
*
*
* Key: -vis.enable
*
* Default: ELKI core
*
*/
public static final OptionID ENABLEVIS_ID = new OptionID("vis.enable", "Visualizers to enable by default.");
/**
* Parameter to set the sampling level
*
*
* Key: -vis.sampling
*
*/
public static final OptionID SAMPLING_ID = new OptionID("vis.sampling", "Maximum number of objects to visualize by default (for performance reasons).");
/**
* Style library
*/
protected StyleLibrary stylelib = null;
/**
* Pattern to enable visualizers
*/
protected Pattern enableVisualizers = null;
/**
* Visualizer factories
*/
protected Collection factories = null;
/**
* Sampling size
*/
protected int samplesize = -1;
@Override
protected void makeOptions(Parameterization config) {
super.makeOptions(config);
IntParameter samplingP = new IntParameter(SAMPLING_ID, DEFAULT_SAMPLE_SIZE) //
.addConstraint(CommonConstraints.GREATER_EQUAL_MINUSONE_INT);
if(config.grab(samplingP)) {
samplesize = samplingP.intValue();
}
StringParameter stylelibP = new StringParameter(STYLELIB_ID, PropertiesBasedStyleLibrary.DEFAULT_SCHEME_FILENAME);
if(config.grab(stylelibP)) {
String filename = stylelibP.getValue();
try {
stylelib = new PropertiesBasedStyleLibrary(filename, filename);
}
catch(AbortException e) {
config.reportError(new WrongParameterValueException(stylelibP, filename, e));
}
}
PatternParameter enablevisP = new PatternParameter(ENABLEVIS_ID) //
.setOptional(true);
if(config.grab(enablevisP)) {
if(!"all".equals(enablevisP.getValueAsString())) {
enableVisualizers = enablevisP.getValue();
}
}
MergedParameterization merged = new MergedParameterization(config);
factories = collectFactorys(merged, enableVisualizers);
}
/**
* Collect and instantiate all visualizer factories.
*
* @param config Parameterization
* @param filter Filter
* @return List of all adapters found.
*/
private static Collection collectFactorys(MergedParameterization config, Pattern filter) {
ArrayList factories = new ArrayList<>();
for(Class c : ELKIServiceRegistry.findAllImplementations(VisualizationProcessor.class)) {
if(filter != null && !filter.matcher(c.getCanonicalName()).find()) {
continue;
}
try {
config.rewind();
VisualizationProcessor a = ClassGenericsUtil.tryInstantiate(VisualizationProcessor.class, c, config);
factories.add(a);
}
catch(Throwable e) {
if(LOG.isDebugging()) {
LOG.exception("Error instantiating visualization processor " + c.getName(), e.getCause());
}
else {
LOG.warning("Error instantiating visualization processor " + c.getName() + ": " + e.getMessage());
}
}
}
return factories;
}
@Override
protected VisualizerParameterizer makeInstance() {
return new VisualizerParameterizer(samplesize, stylelib, factories);
}
}
}