Examples with EntityAlreadyExistsException org.apache.clerezza.rdf.core.access.EntityAlreadyExistsException used on opensource projects

Example 1 with EntityAlreadyExistsException

use of org.apache.clerezza.rdf.core.access.EntityAlreadyExistsException in project stanbol by apache.

the class ClerezzaOntologyProvider method loadInStore.

@Override
public OWLOntologyID loadInStore(Object ontology, final boolean force, Origin<?>... origins) {
    if (ontology == null)
        throw new IllegalArgumentException("No ontology supplied.");
    checkReplaceability(origins);
    long before = System.currentTimeMillis();
    // The final graph
    Graph targetGraph;
    // The supplied ontology converted to Graph
    Graph rdfData;
    if (ontology instanceof OWLOntology) {
        // This will be in memory!
        rdfData = OWLAPIToClerezzaConverter.owlOntologyToClerezzaGraph((OWLOntology) ontology);
    } else if (ontology instanceof Graph) {
        // This might be in memory or in persistent storage.
        rdfData = (Graph) ontology;
    } else
        throw new UnsupportedOperationException("This ontology provider can only accept objects assignable to " + Graph.class + " or " + OWLOntology.class);
    // XXX Force is ignored for the content, but the imports?
    // Now we proceed to assign the primary key to the ontology.
    OWLOntologyID primaryKey = null;
    /*
         * Compute aliases
         */
    IRI graphName = null;
    // Priority aliases.
    List<OWLOntologyID> overrides = new ArrayList<OWLOntologyID>();
    // Second-choice aliases.
    List<org.semanticweb.owlapi.model.IRI> sources = new ArrayList<org.semanticweb.owlapi.model.IRI>();
    // Scan origins ONCE.
    for (int i = 0; i < origins.length; i++) {
        Origin<?> origin = origins[i];
        log.debug("Found origin at index {}", i);
        if (origin == null) {
            log.warn("Null origin at index {}. Skipping.", i);
            continue;
        }
        Object ref = origin.getReference();
        if (ref == null) {
            log.warn("Null reference at index {}. Skipping.", i);
            continue;
        }
        log.debug(" ... Reference is a {}", ref.getClass().getCanonicalName());
        log.debug(" ... Value : {}", ref);
        if (ref instanceof OWLOntologyID) {
            OWLOntologyID key = (OWLOntologyID) ref;
            if (primaryKey == null) {
                primaryKey = key;
                log.debug(" ... assigned as primary key.");
            } else if (primaryKey.equals(key)) {
                log.debug(" ... matches primary key. Skipping.");
            } else {
                overrides.add(key);
                log.debug(" ... assigned as a priority alias for {}", primaryKey);
            }
        } else if (ref instanceof org.semanticweb.owlapi.model.IRI) {
            sources.add((org.semanticweb.owlapi.model.IRI) ref);
            log.debug(" ... assigned as a secondary alias (source) for {}", primaryKey);
        } else if (ref instanceof IRI) {
            if (graphName != null)
                log.warn("ImmutableGraph name already assigned as {}. Skipping.", graphName);
            else {
                graphName = (IRI) ref;
                log.debug(" ... assigned as a graph name for {}", primaryKey);
            }
        } else {
            log.warn("Unhandled type for origin at index {} : {}. Skipping.", i, ref.getClass());
        }
    }
    // The actual logical ID will be dereferenceable no matter what.
    OWLOntologyID extractedId = OWLUtils.extractOntologyID(rdfData);
    if (// Not overridden: set as primary key.
    primaryKey == null)
        // Not overridden: set as primary key.
        primaryKey = extractedId;
    else
        // Overridden: must be an alias anyway.
        overrides.add(extractedId);
    if (// No overrides, no extracted ID.
    primaryKey == null) {
        org.semanticweb.owlapi.model.IRI z;
        // The first IRI found becomes the primary key.
        if (!sources.isEmpty())
            z = sources.iterator().next();
        else // Try the graph name
        if (graphName != null)
            z = org.semanticweb.owlapi.model.IRI.create(graphName.getUnicodeString());
        else
            // Extrema ratio : compute a timestamped primary key.
            z = org.semanticweb.owlapi.model.IRI.create(getClass().getCanonicalName() + "-time:" + System.currentTimeMillis());
        primaryKey = new OWLOntologyID(z);
    }
    // Check if it is possible to avoid reloading the ontology content from its source.
    boolean mustLoad = true;
    if (!force && graphName != null && store.listGraphs().contains(graphName)) {
        // Any failed check will abort the scan.
        boolean condition = true;
        // Check if the extracted ontology ID matches that of the supplied graph.
        // XXX note that anonymous ontologies should be considered a match... or should they not?
        Graph tc = store.getGraph(graphName);
        OWLOntologyID idFromStore = OWLUtils.extractOntologyID(tc);
        condition &= (extractedId == null && idFromStore == null) || extractedId.equals(idFromStore);
        // FIXME not a good policy for graphs that change without altering the size.
        if (condition && rdfData instanceof Graph)
            condition &= tc.size() == rdfData.size();
        mustLoad &= !condition;
    }
    if (!mustLoad && graphName != null) {
        log.debug("ImmutableGraph with ID {} already in store. Default action is to skip storage.", graphName);
        targetGraph = store.getGraph(graphName);
    } else {
        String iri = null;
        if (primaryKey.getOntologyIRI() != null)
            iri = primaryKey.getOntologyIRI().toString();
        if (primaryKey.getVersionIRI() != null)
            iri += ":::" + primaryKey.getVersionIRI().toString();
        // s will become the graph name
        String s = (iri.startsWith(prefix + "::")) ? "" : (prefix + "::");
        s += iri;
        graphName = new IRI(URIUtils.sanitize(s));
        log.debug("Storing ontology with graph ID {}", graphName);
        try {
            targetGraph = store.createGraph(graphName);
        } catch (EntityAlreadyExistsException e) {
            if (graphName.equals(e.getEntityName()))
                targetGraph = store.getGraph(graphName);
            else
                targetGraph = store.createGraph(graphName);
        }
        targetGraph.addAll(rdfData);
    }
    // All is already sanitized by the time we get here.
    // Now do the mappings
    String mappedIds = "";
    // Discard unconventional ontology IDs with only the version IRI
    if (primaryKey != null && primaryKey.getOntologyIRI() != null) {
        // Versioned or not, the real ID mapping is always added
        keymap.setMapping(primaryKey, graphName);
        mappedIds += primaryKey;
        // TODO map unversioned ID as well?
        Triple t = new TripleImpl(keymap.buildResource(primaryKey), SIZE_IN_TRIPLES_URIREF, LiteralFactory.getInstance().createTypedLiteral(Integer.valueOf(rdfData.size())));
        getMetaGraph(Graph.class).add(t);
    }
    // Add aliases.
    for (org.semanticweb.owlapi.model.IRI source : sources) if (source != null)
        overrides.add(new OWLOntologyID(source));
    for (OWLOntologyID alias : overrides) if (alias != null && !alias.equals(primaryKey)) {
        addAlias(primaryKey, alias);
        mappedIds += " , " + alias;
    }
    // Do this AFTER registering the ontology, otherwise import cycles will cause infinite loops.
    if (resolveImports) {
        // Scan resources of type owl:Ontology, but only get the first.
        Iterator<Triple> it = targetGraph.filter(null, RDF.type, OWL.Ontology);
        if (it.hasNext()) {
            // Scan import statements for the one owl:Ontology considered.
            Iterator<Triple> it2 = targetGraph.filter(it.next().getSubject(), OWL.imports, null);
            while (it2.hasNext()) {
                RDFTerm obj = it2.next().getObject();
                log.info("Resolving import target {}", obj);
                if (obj instanceof IRI)
                    try {
                        // TODO try locals first
                        IRI target = (IRI) obj;
                        OWLOntologyID id = new OWLOntologyID(org.semanticweb.owlapi.model.IRI.create(target.getUnicodeString()));
                        if (keymap.getMapping(id) == null) {
                            // Check if it's not there already.
                            if (isOfflineMode())
                                throw new RuntimeException("Cannot load imported ontology " + obj + " while Stanbol is in offline mode.");
                            // TODO manage origins for imported ontologies too?
                            OWLOntologyID id2 = loadInStore(org.semanticweb.owlapi.model.IRI.create(((IRI) obj).getUnicodeString()), null, false);
                            if (id2 != null)
                                id = id2;
                            log.info("Import {} resolved.", obj);
                            log.debug("");
                        } else {
                            log.info("Requested import already stored. Setting dependency only.");
                        }
                        descriptor.setDependency(primaryKey, id);
                    } catch (UnsupportedFormatException e) {
                        log.warn("Failed to parse format for resource " + obj, e);
                    // / XXX configure to continue?
                    } catch (IOException e) {
                        log.warn("Failed to load ontology from resource " + obj, e);
                    // / XXX configure to continue?
                    }
            }
        }
    }
    log.debug(" Ontology {}", mappedIds);
    if (targetGraph != null)
        log.debug(" ... ({} triples)", targetGraph.size());
    log.debug(" ... primary public key : {}", primaryKey);
    // log.debug("--- {}", URIUtils.sanitize(s));
    log.debug("Time: {} ms", (System.currentTimeMillis() - before));
    // return URIUtils.sanitize(s);
    return primaryKey;
}

Example 2 with EntityAlreadyExistsException

use of org.apache.clerezza.rdf.core.access.EntityAlreadyExistsException in project stanbol by apache.

the class ClerezzaRuleStore method createRecipe.

/*
     * Moved form AddRecipe class. The AddRecipe should not be used anymore.
     */
@Override
public Recipe createRecipe(IRI recipeID, String recipeDescription) throws AlreadyExistingRecipeException {
    Graph tripleCollection;
    try {
        // create the Graph in the TcManager
        tripleCollection = tcManager.createGraph(recipeID);
    } catch (EntityAlreadyExistsException e) {
        throw new AlreadyExistingRecipeException(e.getMessage());
    }
    Triple recipeTriple = new TripleImpl(recipeID, RDF.type, Symbols.Recipe);
    Graph recipeIndexGraph = tcManager.getGraph(new IRI(recipeIndexLocation));
    recipeIndexGraph.add(recipeTriple);
    if (recipeDescription != null && !recipeDescription.isEmpty()) {
        Triple descriptionTriple = new TripleImpl(recipeID, Symbols.description, new PlainLiteralImpl(recipeDescription));
        tripleCollection.add(descriptionTriple);
        recipeIndexGraph.add(descriptionTriple);
    }
    // add the recpe ID to the list of known recipes
    recipes.add(recipeID);
    return new RecipeImpl(recipeID, recipeDescription, null);
}