public void initialize() throws ThinklabException {
/* link and initialize knowledge repository */
knowledgeRepository.initialize();
/* see if the preferences override the thinklab core ontology URL */
String cont =
LocalConfiguration.getProperties()
.getProperty("thinklab.ontology.core", DEFAULT_CORE_ONTOLOGY);
URL tco = Thinklab.get().getResourceURL(cont);
knowledgeRepository.refreshOntology(tco, MiscUtilities.getNameFromURL(cont), true);
/* initialize types before we register plugins */
initializeThinklabTypes();
/* initialize default blacklists */
String blk = LocalConfiguration.getProperties().getProperty(IGNORE_PROPERTY_PROPERTY);
if (blk != null) {
String[] bk = blk.trim().split(",");
for (String s : bk) {
KnowledgeManager.get().blacklistProperty(s);
}
}
blk = LocalConfiguration.getProperties().getProperty(IGNORE_CONCEPT_PROPERTY);
if (blk != null) {
String[] bk = blk.trim().split(",");
for (String s : bk) {
KnowledgeManager.get().blacklistConcept(s);
}
}
commandManager = new CommandManager();
Thinklab.get().logger().info("knowledge manager initialized successfully");
}
@Override
protected void doStart() throws Exception {
/*
* tell thinklab to generate ThinkcapSessions
*/
KnowledgeManager.get().setSessionManager(new ThinkcapSessionManager());
/*
* TODO setup web space
*/
}
public IValue execute(Command command, ISession session) throws ThinklabException {
// TODO only handle ontologies for now
String toload = command.getArgumentAsString("resource");
String name = command.hasOption("name") ? command.getOptionAsString("name") : null;
if (name == null) name = MiscUtilities.getNameFromURL(toload);
name = KnowledgeManager.get().registerOntology(toload, name);
session.getOutputStream().println("ontology " + name + " loaded");
return null;
}
/**
* Return the literal concept that represents the POD type of the object passed. Anything non-POD
* will return null.
*
* @param value
* @return
*/
public static IConcept getConceptForObject(Object value) {
IConcept ret = null;
if (value instanceof Integer) {
ret = KnowledgeManager.Integer();
} else if (value instanceof Float) {
ret = KnowledgeManager.Float();
} else if (value instanceof Double) {
ret = KnowledgeManager.Double();
} else if (value instanceof Long) {
ret = KnowledgeManager.Long();
} else if (value instanceof String) {
ret = KnowledgeManager.Text();
} else if (value instanceof Boolean) {
ret = KnowledgeManager.Boolean();
}
return ret;
}
@Override
public void initialize(IInstance i) throws ThinklabException {
super.initialize(i);
/*
* these should be in already through reflection, but let's keep
* the OWL way supported just in case.
*/
for (IRelationship r : i.getRelationships("modeltypes:hasClassifier")) {
String[] rz = r.getValue().toString().split("->");
Pair<GeneralClassifier, IConcept> cls =
new Pair<GeneralClassifier, IConcept>(
new GeneralClassifier(rz[1]), KnowledgeManager.get().requireConcept(rz[0]));
classifiers.add(cls);
}
/*
* we have no guarantee that the universal classifier, if there,
* will be last, given that it may come from an OWL multiproperty where
* the orderding isn't guaranteed.
*
* scan the classifiers and if we have a universal classifier make sure
* it's the last one, to avoid problems.
*/
int unidx = -1;
int iz = 0;
for (Pair<GeneralClassifier, IConcept> cls : classifiers) {
if (cls.getFirst().isUniversal()) {
unidx = iz;
}
iz++;
}
if (unidx >= 0 && unidx < classifiers.size() - 1) {
ArrayList<Pair<GeneralClassifier, IConcept>> nc =
new ArrayList<Pair<GeneralClassifier, IConcept>>();
for (iz = 0; iz < classifiers.size(); iz++) {
if (iz != unidx) nc.add(classifiers.get(iz));
}
nc.add(classifiers.get(unidx));
classifiers = nc;
}
/*
* check if we have a nil classifier; if we don't we don't bother classifying
* nulls and save some work.
*/
this.hasNilClassifier = false;
for (Pair<GeneralClassifier, IConcept> cl : classifiers) {
if (cl.getFirst().isNil()) {
this.hasNilClassifier = true;
break;
}
}
IValue def = i.get(CoreScience.HAS_CONCEPTUAL_SPACE);
if (def != null) cSpace = def.getConcept();
def = i.get("modeltypes:encodesContinuousDistribution");
if (def != null) continuousDistribution = MiscUtilities.parseDoubleVector(def.toString());
// TODO remove?
if (continuousDistribution != null
&& getDataSource() != null
&& (getDataSource() instanceof IState))
((IState) getDataSource())
.getMetadata()
.put(Metadata.CONTINUOS_DISTRIBUTION_BREAKPOINTS, continuousDistribution);
if (continuousDistribution != null)
metadata.put(Metadata.CONTINUOS_DISTRIBUTION_BREAKPOINTS, continuousDistribution);
if (classifiers != null) {
metadata.put(Metadata.CLASSIFIERS, classifiers);
IConcept[] rnk = null;
/*
* remap the values to ranks and determine how to rewire the input
* if necessary, use classifiers instead of lexicographic order to
* infer the appropriate concept order
*/
ArrayList<GeneralClassifier> cla = new ArrayList<GeneralClassifier>();
ArrayList<IConcept> con = new ArrayList<IConcept>();
for (Pair<GeneralClassifier, IConcept> op : classifiers) {
cla.add(op.getFirst());
con.add(op.getSecond());
}
Pair<double[], IConcept[]> pd = Metadata.computeDistributionBreakpoints(cSpace, cla, con);
if (pd != null) {
if (pd.getSecond()[0] != null) {
rnk = pd.getSecond();
}
}
HashMap<IConcept, Integer> ranks = null;
if (rnk == null) {
ranks = Metadata.rankConcepts(cSpace, metadata);
} else {
ranks = Metadata.rankConcepts(cSpace, rnk, metadata);
}
}
}
public TextValue(String s) {
super(KnowledgeManager.Text());
value = s;
}
public TextValue() {
super(KnowledgeManager.Text());
value = "";
}
public AlgorithmValue() throws ThinklabException {
super(KnowledgeManager.get().getTextType());
value = "";
}