Java RDFWriterRegistry.getInstance方法代码示例

import org.openrdf.rio.RDFWriterRegistry; //导入方法依赖的package包/类
/**
 * This is needed, because Rio is unable to find the Parser/Writer Factories
 * automatically when the jar gets deployed as plugin inside the Neo4j
 * Server.
 */
private synchronized void initRio() {
	if (!rioInitialized) {
		RDFParserRegistry parserRegistry = RDFParserRegistry.getInstance();
		parserRegistry.add(new TurtleParserFactory());
		parserRegistry.add(new YARSParserFactory());
		parserRegistry.add(new RDFXMLParserFactory());
		parserRegistry.add(new NTriplesParserFactory());
		parserRegistry.add(new RDFJSONParserFactory());
		RDFWriterRegistry writerRegistry = RDFWriterRegistry.getInstance();
		writerRegistry.add(new TurtleWriterFactory());
		writerRegistry.add(new YARSWriterFactory());
		writerRegistry.add(new RDFXMLWriterFactory());
		writerRegistry.add(new NTriplesWriterFactory());
		writerRegistry.add(new RDFJSONWriterFactory());
		rioInitialized = true;
	}
}
 

import org.openrdf.rio.RDFWriterRegistry; //导入方法依赖的package包/类
/**
 * This is needed, because Rio is unable to find the Parser/Writer Factories
 * automatically when the jar gets deployed as plugin inside the Neo4j
 * Server.
 */
private synchronized void initRio() {
	if (!rioInitialized) {
		RDFParserRegistry parserRegistry = RDFParserRegistry.getInstance();
		parserRegistry.add(new TurtleParserFactory());
		parserRegistry.add(new RDFXMLParserFactory());
		parserRegistry.add(new NTriplesParserFactory());
		parserRegistry.add(new RDFJSONParserFactory());
		RDFWriterRegistry writerRegistry = RDFWriterRegistry.getInstance();
		writerRegistry.add(new TurtleWriterFactory());
		writerRegistry.add(new RDFXMLWriterFactory());
		writerRegistry.add(new NTriplesWriterFactory());
		writerRegistry.add(new RDFJSONWriterFactory());
		rioInitialized = true;
	}
}
 

import org.openrdf.rio.RDFWriterRegistry; //导入方法依赖的package包/类
private RDFWriter createWriter(StringWriter writer) {
	RDFWriter result=null;
	if(format.equals(Format.TURTLE)) {
		result=new TurtlePrettyPrinter(new MemValueFactory().createURI(baseURI.toString()),writer);
	} else {
		RDFWriterRegistry registry=RDFWriterRegistry.getInstance();
		RDFFormat rawFormat=Rio.getWriterFormatForMIMEType(format.getMime(),RDFFormat.RDFXML);
		RDFWriterFactory factory=registry.get(rawFormat);
		result=factory.getWriter(writer);
		if(format.equals(Format.JSON_LD)) {
			result.getWriterConfig().set(JSONLDSettings.JSONLD_MODE,JSONLDMode.FLATTEN);
			result.getWriterConfig().set(BasicWriterSettings.PRETTY_PRINT,true);
		}
	}
	return result;
}
 

import org.openrdf.rio.RDFWriterRegistry; //导入方法依赖的package包/类
private FileFormatServiceRegistry<? extends FileFormat, ?> getRegistryInstance(SparqlQueryType queryType) {
	switch(queryType){
		case TUPLE_QUERY: return TupleQueryResultWriterRegistry.getInstance();
		case GRAPH_QUERY: return RDFWriterRegistry.getInstance();
		case BOOLEAN_QUERY: return BooleanQueryResultWriterRegistry.getInstance();
	}
	return null;
}
 

import org.openrdf.rio.RDFWriterRegistry; //导入方法依赖的package包/类
/**
 * This method is required as at last check the BinaryRDFWriterFactory was not fully implemeneted.
 * @param format
 * @param writer
 * @return 
 */
private static RDFWriter getWriterIfPossible(RDFFormat format, Writer writer){
    RDFWriterRegistry register =  RDFWriterRegistry.getInstance();
    RDFWriterFactory factory = register.get(format);
    if (factory == null){
        return null;
    }
    try {
        return factory.getWriter(writer);
    } catch (Exception ex){
        logger.error(ex);
        return null;
    }
}
 

import org.openrdf.rio.RDFWriterRegistry; //导入方法依赖的package包/类
/**
 * Returns a {@link RDFWriterFactory} that produces RDF data according to a
 * given MIME-type.
 *
 * @param mimetype the mimetype
 * @return the corresponding writer factory
 */
private RDFWriterFactory getRDFWriterFactory(String mimetype) {
	RDFWriterRegistry registry = RDFWriterRegistry.getInstance();
	return registry.get(getRDFFormat(mimetype));
}