Examples with Graph org.apache.clerezza.commons.rdf.Graph used on opensource projects

Example 41 with Graph

use of org.apache.clerezza.commons.rdf.Graph in project stanbol by apache.

the class UIMAToTriples method computeEnhancements.

public void computeEnhancements(ContentItem ci) throws EngineException {
    FeatureStructureListHolder holder;
    LiteralFactory literalFactory = LiteralFactory.getInstance();
    try {
        IRI uimaIRI = new IRI(uimaUri);
        logger.info(new StringBuilder("Trying to load holder for ref:").append(uimaUri).toString());
        holder = ci.getPart(uimaIRI, FeatureStructureListHolder.class);
        for (String source : sourceNames) {
            logger.info(new StringBuilder("Processing UIMA source:").append(source).toString());
            List<FeatureStructure> sourceList = holder.getFeatureStructureList(source);
            if (sourceList != null) {
                logger.info(new StringBuilder("UIMA source:").append(source).append(" contains ").append(sourceList.size()).append(" annotations.").toString());
            } else {
                logger.info(new StringBuilder("Source list is null:").append(source).toString());
                continue;
            }
            for (FeatureStructure fs : sourceList) {
                String typeName = fs.getTypeName();
                logger.debug(new StringBuilder("Checking ").append(typeName).toString());
                if (tnfs.checkFeatureStructureAllowed(typeName, fs.getFeatures())) {
                    logger.debug(new StringBuilder("Adding ").append(typeName).toString());
                    IRI textAnnotation = EnhancementEngineHelper.createTextEnhancement(ci, this);
                    Graph metadata = ci.getMetadata();
                    String uriRefStr = uimaUri + ":" + typeName;
                    if (mappings.containsKey(typeName)) {
                        uriRefStr = mappings.get(typeName);
                    }
                    metadata.add(new TripleImpl(textAnnotation, DC_TYPE, new IRI(uriRefStr)));
                    if (fs.getFeature("begin") != null) {
                        metadata.add(new TripleImpl(textAnnotation, ENHANCER_START, literalFactory.createTypedLiteral(fs.getFeature("begin").getValueAsInteger())));
                    }
                    if (fs.getFeature("end") != null) {
                        metadata.add(new TripleImpl(textAnnotation, ENHANCER_END, literalFactory.createTypedLiteral(fs.getFeature("end").getValueAsInteger())));
                    }
                    if (fs.getCoveredText() != null && !fs.getCoveredText().isEmpty()) {
                        metadata.add(new TripleImpl(textAnnotation, ENHANCER_SELECTED_TEXT, new PlainLiteralImpl(fs.getCoveredText())));
                    }
                    for (Feature f : fs.getFeatures()) {
                        if (!f.getName().equals("begin") && !f.getName().equals("end") && tnfs.checkFeatureToConvert(typeName, f)) {
                            String predRefStr = uimaUri + ":" + f.getName();
                            if (mappings.containsKey(f.getName())) {
                                predRefStr = mappings.get(f.getName());
                            }
                            IRI predicate = new IRI(predRefStr);
                            metadata.add(new TripleImpl(textAnnotation, predicate, new PlainLiteralImpl(f.getValueAsString())));
                        }
                    }
                }
            }
        }
    } catch (NoSuchPartException e) {
        logger.error(new StringBuilder("No UIMA results found with ref:").append(uimaUri).toString(), e);
    }
}

Example 42 with Graph

use of org.apache.clerezza.commons.rdf.Graph in project stanbol by apache.

the class XmpExtractorEngine method computeEnhancements.

@Override
public void computeEnhancements(ContentItem ci) throws EngineException {
    InputStream in = ci.getBlob().getStream();
    XMPPacketScanner scanner = new XMPPacketScanner();
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    try {
        scanner.parse(in, baos);
    } catch (IOException e) {
        throw new EngineException(e);
    }
    byte[] bytes = baos.toByteArray();
    if (bytes.length > 0) {
        Graph model = new IndexedGraph();
        parser.parse(model, new ByteArrayInputStream(bytes), "application/rdf+xml");
        GraphNode gn = new GraphNode(new IRI("http://relative-uri.fake/"), model);
        gn.replaceWith(ci.getUri());
        ci.getLock().writeLock().lock();
        try {
            LOG.info("Model: {}", model);
            ci.getMetadata().addAll(model);
        } finally {
            ci.getLock().writeLock().unlock();
        }
    }
}

Example 43 with Graph

use of org.apache.clerezza.commons.rdf.Graph in project stanbol by apache.

the class ZemantaAPIWrapper method parseResponse.

private ImmutableGraph parseResponse(InputStream is) {
    JenaParserProvider jenaParserProvider = new JenaParserProvider();
    //NOTE(rw): the new third parameter is the base URI used to resolve relative paths
    Graph g = new SimpleGraph();
    jenaParserProvider.parse(g, is, SupportedFormat.RDF_XML, null);
    log.debug("graph: " + g.toString());
    return g.getImmutableGraph();
}

Example 44 with Graph

use of org.apache.clerezza.commons.rdf.Graph in project stanbol by apache.

the class ZemantaEnhancementEngine method computeEnhancements.

public void computeEnhancements(ContentItem ci) throws EngineException {
    Entry<IRI, Blob> contentPart = ContentItemHelper.getBlob(ci, SUPPORTED_MIMETYPES);
    if (contentPart == null) {
        throw new IllegalStateException("No ContentPart with a supported Mime Type" + "found for ContentItem " + ci.getUri() + "(supported: '" + SUPPORTED_MIMETYPES + "') -> this indicates that canEnhance was" + "NOT called and indicates a bug in the used EnhancementJobManager!");
    }
    String text;
    try {
        text = ContentItemHelper.getText(contentPart.getValue());
    } catch (IOException e) {
        throw new InvalidContentException(this, ci, e);
    }
    if (text.trim().length() == 0) {
        log.warn("ContentPart {} of ContentItem {} does not contain any text to enhance", contentPart.getKey(), ci.getUri());
        return;
    }
    Graph graph = ci.getMetadata();
    IRI ciId = ci.getUri();
    //we need to store the results of Zemanta in an temp graph
    Graph results = new SimpleGraph();
    ZemantaAPIWrapper zemanta = new ZemantaAPIWrapper(key);
    try {
        results.addAll(zemanta.enhance(text));
    } catch (IOException e) {
        throw new EngineException("Unable to get Enhancement from remote Zemanta Service", e);
    }
    //now we need to process the results and convert them into the Enhancer
    //annotation structure
    ci.getLock().writeLock().lock();
    try {
        processRecognition(results, graph, text, ciId);
        processCategories(results, graph, ciId);
    } finally {
        ci.getLock().writeLock().unlock();
    }
}

Example 45 with Graph

use of org.apache.clerezza.commons.rdf.Graph in project stanbol by apache.

the class UserResource method rolesCheckboxes.

/**
     * Provides HTML corresponding to a user's roles
     *
     * all roles are listed with checkboxes, the roles this user has are checked
     *
     * (isn't very pretty but is just a one-off)
     *
     * @param userName the user in question
     * @return HTML checkboxes as HTTP response
     */
@GET
@Path("users/{username}/rolesCheckboxes")
@Produces(MediaType.TEXT_HTML)
public Response rolesCheckboxes(@PathParam("username") String userName) {
    // return new RdfViewable("rolesCheckboxes", getRoleType(), this.getClass());
    StringBuffer html = new StringBuffer();
    Iterator<Triple> allRoleTriples = systemGraph.filter(null, RDF.type, PERMISSION.Role);
    ArrayList<String> allRoleNames = new ArrayList<String>();
    Lock readLock = systemGraph.getLock().readLock();
    readLock.lock();
    try {
        // pulls out all role names
        while (allRoleTriples.hasNext()) {
            Triple triple = allRoleTriples.next();
            GraphNode roleNode = new GraphNode(triple.getSubject(), systemGraph);
            Iterator<Literal> titlesIterator = roleNode.getLiterals(DC.title);
            while (titlesIterator.hasNext()) {
                allRoleNames.add(titlesIterator.next().getLexicalForm());
            }
        }
    } finally {
        readLock.unlock();
    }
    Graph rolesGraph = getUserRolesGraph(userName);
    ArrayList<String> userRoleNames = new ArrayList<String>();
    Iterator<Triple> userRoleTriples = rolesGraph.filter(null, RDF.type, PERMISSION.Role);
    while (userRoleTriples.hasNext()) {
        Triple triple = userRoleTriples.next();
        GraphNode roleNode = new GraphNode(triple.getSubject(), rolesGraph);
        Iterator<Literal> titlesIterator = roleNode.getLiterals(DC.title);
        while (titlesIterator.hasNext()) {
            userRoleNames.add(titlesIterator.next().getLexicalForm());
        }
    }
    for (int i = 0; i < allRoleNames.size(); i++) {
        String role = allRoleNames.get(i);
        if (role.equals("BasePermissionsRole")) {
            // filter out
            continue;
        }
        if (userRoleNames.contains(role)) {
            html.append("<input class=\"role\" type=\"checkbox\" id=\"").append(role).append("\" name=\"").append(role).append("\" value=\"").append(role).append("\" checked=\"checked\" />");
        } else {
            html.append("<input class=\"role\" type=\"checkbox\" id=\"").append(role).append("\" name=\"").append(role).append("\" value=\"").append(role).append("\" />");
        }
        html.append("<label for=\"").append(role).append("\">").append(role).append("</label>");
        html.append("<br />");
    }
    return Response.ok(html.toString()).build();
}