import org.apache.jena.riot.system.PrefixMapFactory; //导入依赖的package包/类
public TokenWriterText(String label, NodeFormatter formatter, AWriter out) {
    if ( formatter == null )
        // For the number abbreviations.
        formatter = new NodeFormatterTTL(null, PrefixMapFactory.emptyPrefixMap()) ;
    // Must write bNodes as <_:....>
    formatter = new NodeFormatterBNode(formatter) ;
    this.fmt = formatter ;
    this.out = out ;
    this.label = label ;
}
 

import org.apache.jena.riot.system.PrefixMapFactory; //导入依赖的package包/类
public static void writeTurtle(File file, SpdxDocument document) throws IOException {
    try (FileWriter writer = new FileWriter(file)) {
        TurtleWriter turtleWriter = new TurtleWriter();
        Model model = document.getDocumentContainer().getModel();
        PrefixMap prefixMap = PrefixMapFactory.create(model.getNsPrefixMap());
        prefixMap.add("", SpdxLogic.SPDX_URI_NAMESPACE);
        prefixMap.add("licenseList", ListedLicenses.LISTED_LICENSE_URI_PREFIX);
        prefixMap.add(StringUtils.removeAll(document.getName(), " "), document.getDocumentNamespace());
        turtleWriter.write(writer, model.getGraph(), prefixMap, SpdxLogic.SPDX_URI_NAMESPACE, null);
    } catch (InvalidSPDXAnalysisException e) {
        throw new RuntimeException("Document information (name and namespace) not present.");
    }
}
 

import org.apache.jena.riot.system.PrefixMapFactory; //导入依赖的package包/类
public static void writeNtripples(File file, SpdxDocument document) throws IOException {
    try (FileWriter writer = new FileWriter(file)) {
        NTriplesWriter nTriplesWriter = new NTriplesWriter();
        Model model = document.getDocumentContainer().getModel();
        PrefixMap prefixMap = PrefixMapFactory.create(model.getNsPrefixMap());
        prefixMap.add("", SpdxLogic.SPDX_URI_NAMESPACE);
        prefixMap.add("licenseList", ListedLicenses.LISTED_LICENSE_URI_PREFIX);
        prefixMap.add(StringUtils.removeAll(document.getName(), " "), document.getDocumentNamespace());
        nTriplesWriter.write(writer, model.getGraph(), prefixMap, SpdxLogic.SPDX_URI_NAMESPACE, null);
    } catch (InvalidSPDXAnalysisException e) {
        throw new RuntimeException("Document information (name and namespace) not present.");
    }
}
 

import org.apache.jena.riot.system.PrefixMapFactory; //导入依赖的package包/类
public static void writeJsonLd(File file, SpdxDocument document) throws IOException {
    try (FileWriter writer = new FileWriter(file)) {
        Model model = document.getDocumentContainer().getModel();
        JsonLDWriter jsonLDWriter = new JsonLDWriter(RDFFormat.JSONLD_EXPAND_PRETTY);
        JsonLDWriteContext context = new JsonLDWriteContext();
        JsonLdOptions options = new JsonLdOptions();
        options.setBase(SpdxLogic.SPDX_URI_NAMESPACE);
        context.setOptions(options);

        PrefixMap prefixMap = PrefixMapFactory.create(model.getNsPrefixMap());
        prefixMap.delete("spdx");
        jsonLDWriter.write(writer, DatasetGraphFactory.create(model.getGraph()), prefixMap, SpdxLogic.SPDX_URI_NAMESPACE, context);
    }
}
 

import org.apache.jena.riot.system.PrefixMapFactory; //导入依赖的package包/类
public static void writeRdfJson(File file, SpdxDocument document) throws IOException{
    try (FileWriter writer = new FileWriter(file)) {
        RDFJSONWriter rdfJsonWriter = new RDFJSONWriter();
        Model model = document.getDocumentContainer().getModel();
        PrefixMap prefixMap = PrefixMapFactory.create(model.getNsPrefixMap());
        prefixMap.add("", SpdxLogic.SPDX_URI_NAMESPACE);
        prefixMap.add("licenseList", ListedLicenses.LISTED_LICENSE_URI_PREFIX);
        prefixMap.add(StringUtils.removeAll(document.getName(), " "), document.getDocumentNamespace());
        rdfJsonWriter.write(writer, model.getGraph(), prefixMap, SpdxLogic.SPDX_URI_NAMESPACE, null);
    } catch (InvalidSPDXAnalysisException e) {
        throw new RuntimeException("Document information (name and namespace) not present.");
    }
}