Java Model.size方法代碼示例

import com.hp.hpl.jena.rdf.model.Model; //導入方法依賴的package包/類
private Model loadMetadataTemplate(D2RServer server,
		ServletContext context, Property configurationFlag,
		String defaultTemplateName) {

	Model metadataTemplate;

	File userTemplateFile = MetadataCreator.findTemplateFile(server,
			configurationFlag);
	Model userResourceTemplate = MetadataCreator
			.loadTemplateFile(userTemplateFile);
	if (userResourceTemplate != null && userResourceTemplate.size() > 0) {
		metadataTemplate = userResourceTemplate;
		log.info("Using user-specified metadata template at '"
				+ userTemplateFile + "'");

	} else {
		// load default template
		InputStream drtStream = context.getResourceAsStream("/WEB-INF/"
				+ defaultTemplateName);
		log.info("Using default metadata template.");
		metadataTemplate = MetadataCreator.loadMetadataTemplate(drtStream);
	}

	return metadataTemplate;
}
 

import com.hp.hpl.jena.rdf.model.Model; //導入方法依賴的package包/類
/**
 * Method called to Chunk the triples into N-Sized batches and post to VIVO.
 * This is designed to work around / handle errors when posting sets of triples
 * over 10,000 to the API.
 *
 * @param namedGraph String with named graph.
 * @param changeModel Jena model with set of changes to sync to store.
 * @param changeType Either add or remove.
 * @return Boolean true if update was successful.
 * @throws IOException
 */
private Boolean bulkUpdate(String namedGraph, Model changeModel, String changeType) throws IOException {
    // Temporary model to hold
    Model tmpModel = ModelFactory.createDefaultModel();
    Integer bSize = Integer.parseInt(batchSize);
    // Use an integer to count triples rather than calling size on the model
    // during each loop.
    Integer size = 0;
    StmtIterator iter = changeModel.listStatements();
    while (iter.hasNext()) {
        Statement stmt = iter.nextStatement();  // get next statement
        tmpModel.add(stmt);
        size++;
        if (size >= bSize) {
            // Submit
            log.info("Submitting " + size + " triples to " + namedGraph);
            submitBatch(tmpModel, namedGraph, changeType);
            // Reset the tmp model.
            tmpModel.removeAll();
            // Reset the counter.
            size = 0;
        }
    }
    log.info("model size:" + tmpModel.size());
    // Submit the remaining statements, if any.
    if (tmpModel.size() > 0) {
        submitBatch(tmpModel, namedGraph, changeType);
    }
    return true;
}
 

import com.hp.hpl.jena.rdf.model.Model; //導入方法依賴的package包/類
private void debugTrips(Model additions, Model subtractions) {
    Long numAdd = additions.size();
    Long numSub = subtractions.size();
    log.info(numAdd.toString() + " triples to add:\n");
    additions.write(System.out, "N-TRIPLES");
    log.info(numSub.toString() + " triples to delete:\n");
    subtractions.write(System.out, "N-TRIPLES");
}
 

import com.hp.hpl.jena.rdf.model.Model; //導入方法依賴的package包/類
public MetadataCreator(D2RServer server, Model template) {
	// store D2R server config for template location
	this.server = server;

	if (template != null && template.size() > 0) {
		this.enable = true;
		this.tplModel = template;
	}
}
 

import com.hp.hpl.jena.rdf.model.Model; //導入方法依賴的package包/類
protected void doGet(HttpServletRequest request,
		HttpServletResponse response) throws IOException, ServletException {
	D2RServer server = D2RServer.fromServletContext(getServletContext());
	server.checkMappingFileChanged();
	String relativeResourceURI = request.getRequestURI().substring(
			request.getContextPath().length()
					+ request.getServletPath().length());
	// Some servlet containers keep the leading slash, some don't
	if (!"".equals(relativeResourceURI)
			&& "/".equals(relativeResourceURI.substring(0, 1))) {
		relativeResourceURI = relativeResourceURI.substring(1);
	}
	if (request.getQueryString() != null) {
		relativeResourceURI = relativeResourceURI + "?"
				+ request.getQueryString();
	}

	/* Determine service stem, i.e. vocab/ in /[vocab/]data */
	int servicePos;
	if (-1 == (servicePos = request.getServletPath().indexOf(
			"/" + D2RServer.getDataServiceName())))
		throw new ServletException("Expected to find service path /"
				+ D2RServer.getDataServiceName());
	String serviceStem = request.getServletPath().substring(1,
			servicePos + 1);

	String resourceURI = RequestParamHandler
			.removeOutputRequestParam(server.resourceBaseURI(serviceStem)
					+ relativeResourceURI);
	String documentURL = server.dataURL(serviceStem, relativeResourceURI);

	String pageURL = server.pageURL(serviceStem, relativeResourceURI);

	String sparqlQuery = "DESCRIBE <" + resourceURI + ">";
	QueryExecution qe = QueryExecutionFactory.create(sparqlQuery,
			server.dataset());
	if (server.getConfig().getPageTimeout() > 0) {
		qe.setTimeout(Math.round(server.getConfig().getPageTimeout() * 1000));
	}
	Model description = qe.execDescribe();
	qe.close();
	
	if (description.size() == 0) {
		response.sendError(404);
	}
	if (description.qnameFor(FOAF.primaryTopic.getURI()) == null
			&& description.getNsPrefixURI("foaf") == null) {
		description.setNsPrefix("foaf", FOAF.NS);
	}
	Resource resource = description.getResource(resourceURI);

	Resource document = description.getResource(documentURL);
	document.addProperty(FOAF.primaryTopic, resource);

	Statement label = resource.getProperty(RDFS.label);
	if (label != null) {
		document.addProperty(RDFS.label,
				"RDF Description of " + label.getString());
	}
	server.addDocumentMetadata(description, document);
	if (server.getConfig().serveMetadata()) {
		// add document metadata from template
		Model resourceMetadataTemplate = server.getConfig().getResourceMetadataTemplate(
				server, getServletContext());
		MetadataCreator resourceMetadataCreator = new MetadataCreator(
				server, resourceMetadataTemplate);
		description.add(resourceMetadataCreator.addMetadataFromTemplate(
				resourceURI, documentURL, pageURL));
		
		Map<String, String> descPrefixes = description.getNsPrefixMap();
		descPrefixes.putAll(resourceMetadataTemplate.getNsPrefixMap());
		description.setNsPrefixes(descPrefixes);
	}
	// TODO: Add a Content-Location header
	new ModelResponse(description, request, response).serve();
}