Examples of org.openrdf.model.URI

org.openrdf.model.URI
A URI. A URI consists of a namespace and a local name, which are derived from a URI string by splitting it in two using the following algorithm:
- Split after the first occurrence of the '#' character,
- If this fails, split after the last occurrence of the '/' character,
- If this fails, split after the last occurrence of the ':' character.
The last step should never fail as every legal (full) URI contains at least one ':' character to seperate the scheme from the rest of the URI. The implementation should check this upon object creation. @see URIUtil#getLocalNameIndex(String)

      Value server = model.filter(implNode, SERVERURL, null).objectValue();
      Literal id = model.filter(implNode, REPOSITORYID, null).objectLiteral();
      if (server != null && id != null) {
        setURL(server.stringValue() + "/repositories/" + id.stringValue());
      }
      URI uri = model.filter(implNode, REPOSITORYURL, null).objectURI();
      if (uri != null) {
        setURL(uri.toString());
      }
      Literal username = model.filter(implNode, USERNAME, null).objectLiteral();
      if (username != null) {
        setUsername(username.getLabel());
      }

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    if (!writingStarted) {
      throw new RuntimeException("Document writing has not yet been started");
    }


    Resource subj = st.getSubject();
    URI pred = st.getPredicate();
    Value obj = st.getObject();


    try {
      if (!headerWritten) {
        writeHeader();
      }


      if (!nodeStack.isEmpty() && !subj.equals(nodeStack.peek().getValue())) {
        // Different subject than we had before, empty the stack
        // until we find it
        popStacks(subj);
      }


      // Stack is either empty or contains the same subject at top


      if (nodeStack.isEmpty()) {
        // Push subject
        nodeStack.push(new Node(subj));
      }


      // Stack now contains at least one element
      Node topSubject = nodeStack.peek();


      // Check if current statement is a type statement and use a typed node
      // element is possible
      // FIXME: verify that an XML namespace-qualified name can be created
      // for the type URI
      if (pred.equals(RDF.TYPE) && obj instanceof URI && !topSubject.hasType() && !topSubject.isWritten())
      {
        // Use typed node element
        topSubject.setType((URI)obj);
      }
      else {

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    if (!writingStarted) {
      throw new RuntimeException("Document writing has not yet been started");
    }


    Resource subj = st.getSubject();
    URI pred = st.getPredicate();
    Value obj = st.getObject();


    try {
      if (subj.equals(lastWrittenSubject)) {
        if (pred.equals(lastWrittenPredicate)) {
          // Identical subject and predicate
          writer.write(" , ");
        }
        else {
          // Identical subject, new predicate

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      // We cannot use abbreviated syntax
      writeStartOfStartTag(RDF.NAMESPACE, "Description");
    }


    if (value instanceof URI) {
      URI uri = (URI)value;
      writeAttribute(RDF.NAMESPACE, "about", relativize(uri.stringValue()));
    }
    else {
      BNode bNode = (BNode)value;
      writeAttribute(RDF.NAMESPACE, "nodeID", bNode.getID());
    }

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    if (obj instanceof Resource) {
      Resource objRes = (Resource)obj;


      if (objRes instanceof URI) {
        URI uri = (URI)objRes;
        writeAttribute(RDF.NAMESPACE, "resource", relativize(uri.stringValue()));
      }
      else {
        BNode bNode = (BNode)objRes;
        writeAttribute(RDF.NAMESPACE, "nodeID", bNode.getID());
      }


      writeEndOfEmptyTag();
    }
    else if (obj instanceof Literal) {
      Literal objLit = (Literal)obj;


      // language attribute
      if (objLit.getLanguage() != null) {
        writeAttribute("xml:lang", objLit.getLanguage());
      }


      // datatype attribute
      boolean isXmlLiteral = false;
      URI datatype = objLit.getDatatype();
      if (datatype != null) {
        // Check if datatype is rdf:XMLLiteral
        isXmlLiteral = datatype.equals(RDF.XMLLITERAL);


        if (isXmlLiteral) {
          writeAttribute(RDF.NAMESPACE, "parseType", "Literal");
        }
        else {
          writeAttribute(RDF.NAMESPACE, "datatype", datatype.toString());
        }
      }


      writeEndOfStartTag();

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    verifyCharacter(read(), ":");


    skipWSC();


    // Read the namespace URI
    URI namespace = parseURI();


    // Store and report this namespace mapping
    String prefixStr = prefixID.toString();
    String namespaceStr = namespace.toString();


    setNamespace(prefixStr, namespaceStr);


    rdfHandler.handleNamespace(prefixStr, namespaceStr);
  }

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  protected void parseBase()
    throws IOException, RDFParseException, RDFHandlerException
  {
    skipWSC();


    URI baseURI = parseURI();


    setBaseURI(baseURI.toString());
  }

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    else {
      BNode listRoot = createBNode();


      // Remember current subject and predicate
      Resource oldSubject = subject;
      URI oldPredicate = predicate;


      // generated bNode becomes subject, predicate becomes rdf:first
      subject = listRoot;
      predicate = RDF.FIRST;

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    if (c != ']') {
      unread(c);


      // Remember current subject and predicate
      Resource oldSubject = subject;
      URI oldPredicate = predicate;


      // generated bNode becomes subject
      subject = bNode;


      // Enter recursion with nested predicate-object list

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  protected Literal parseNumber()
    throws IOException, RDFParseException
  {
    StringBuilder value = new StringBuilder(8);
    URI datatype = XMLSchema.INTEGER;


    int c = read();


    // read optional sign character
    if (c == '+' || c == '-') {

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