Package com.github.jsonldjava.core

Examples of com.github.jsonldjava.core.RDFDataset$Node

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                + subject.getClass().getName());
    }

    @Override
    public RDFDataset parse(Object input) throws JsonLdError {
        final RDFDataset result = new RDFDataset();
        if (input instanceof Statement) {
            handleStatement(result, (Statement) input);
        } else if (input instanceof Graph) {
            if (input instanceof Model) {
                final Set<Namespace> namespaces = ((Model) input).getNamespaces();
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            // opts.skipExpansion = false;
            opts.setCompactArrays(true);
            // opts.keepFreeFloatingNodes = false;
            final JsonLdApi api = new JsonLdApi(opts);
            final JenaRDFParser parser = new JenaRDFParser();
            final RDFDataset result = parser.parse(dataset);
            Object obj = api.fromRDF(result);
            final Map<String, Object> localCtx = new HashMap<String, Object>();
            localCtx.put("@context", ctx);

            // TODO: How/when to do simplify vs compact?
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        }
    }

    @Override
    public RDFDataset parse(Object input) throws JsonLdError {
        final RDFDataset result = new RDFDataset();

        // empty dataset if no input given
        if (input == null) {
            return result;
        }
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        model.add(resource, property, "Test");

        final JsonLdOptions options = new JsonLdOptions();
        options.format = "application/ld+json";
        final JenaRDFParser parser = new JenaRDFParser();
        final RDFDataset dataset = parser.parse(model);
        final Object json = new JsonLdApi(options).fromRDF(dataset);
        final String jsonStr = JSONUtils.toPrettyString(json);
        // System.out.println(jsonStr);
        assertTrue(jsonStr.contains("@id"));
        assertTrue(jsonStr.contains("http://example.com/test"));
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        model.add(resource, property, "Test");

        final JsonLdOptions options = new JsonLdOptions();
        options.format = "application/ld+json";
        final JsonLdApi api = new JsonLdApi(options);
        final RDFDataset dataset = new RDFDataset(api);
        final Object json = api.fromRDF(dataset);
        final String jsonStr = JSONUtils.toPrettyString(json);
        System.out.println(jsonStr);
        // [ {
        // "@id" : "http://example.com/test",
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    // create list for SortContainers...
    final LinkedList<SortContainer> scl = new LinkedList<SortContainer>();

    // walk through children...
    for (int i = 0; i < node.jjtGetNumChildren(); ++i) {
      Node n = node.jjtGetChild(i); // get current child

      boolean desc = false; // set order ASC as default

      // current node is Order node...
      if (n instanceof ASTAscOrder || n instanceof ASTDescOrder) {
        if (n instanceof ASTDescOrder) // reset order value to DESC...
          desc = true;

        i++; // increase counter to get next child (which is sort
        // condition)
      }

      n = node.jjtGetChild(i); // get next child (which is sort condition)

      // parse node with the filter...
      final SPARQLParserVisitorImplementationDumper filterDumper = new SPARQLParserVisitorImplementationDumper();
      final String sortString = n.accept(filterDumper);

      try {
        final SortContainer sc = new SortContainer(this.prefix, desc,
            sortString); // create SortContainer
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  @SuppressWarnings("unchecked")
  public Object visit(final ASTTripleSet node, final Object data) {
    final Item[] item = { null, null, null };

    for (int i = 0; i < 3; i++) {
      final Node n = node.jjtGetChild(i);
      item[i] = lupos.sparql1_1.operatorgraph.SPARQLCoreParserVisitorImplementation.getItem(n);
    }

    final HashMap<Item, QueryRDFTerm> rdfHash = (HashMap<Item, QueryRDFTerm>) data;
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    // if AST exists...
    if (debugViewerCreator!=null && debugViewerCreator instanceof SPARQLDebugViewerCreator
        && ((SPARQLDebugViewerCreator) debugViewerCreator).getAST() != null) {

      final Node ast = ((SPARQLDebugViewerCreator) debugViewerCreator).getAST(); // get AST

      // walk through first level children of AST...
      for (int i = 0; i < ast.jjtGetNumChildren(); ++i) {
        final Node child = ast.jjtGetChild(i); // get current child

        if (child instanceof ASTSelectQuery) {
          final ASTSelectQuery selectChild = (ASTSelectQuery) child;

          // SELECT is not the wildcard *...
          if (!selectChild.isSelectAll()) {
            // walk through select children...
            for (int j = 0; j < selectChild.jjtGetNumChildren(); ++j) {
              final Node selectChildChild = selectChild
              .jjtGetChild(j);

              // child of select is variable...
              if (selectChildChild instanceof ASTVar) {
                final ASTVar var = (ASTVar) selectChildChild;

                // add name of variable to order...
                if (!resultOrder.contains(var.getName())) {
                  resultOrder.add(var.getName());
                }
              } else if (selectChildChild instanceof ASTAs) {
                for (int j1 = 0; j1 < selectChildChild
                .jjtGetNumChildren(); ++j1) {
                  final Node selectChildChildChild = selectChildChild
                  .jjtGetChild(j1);
                  if (selectChildChildChild instanceof ASTVar) {
                    final ASTVar var = (ASTVar) selectChildChildChild;

                    // add name of variable to order...
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        ret += "\n";
        final String orderByClause = " ORDER BY "
          + toBeSorted.toString() + "\n";
        boolean ORDERBYADDED = false;
        while (i < node.jjtGetNumChildren()) {
          final Node child = node.jjtGetChild(i);
          if (!ORDERBYADDED
              && (child instanceof ASTOrderConditions
                  || child instanceof ASTLimit || child instanceof ASTOffset)) {
            ORDERBYADDED = true;
            ret += orderByClause;
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  private static void determineVariables(final Node root,
      final Set<String> variables) {
    if (root instanceof ASTSelectQuery) {
      for (int i = 0; i < root.jjtGetNumChildren(); i++) {
        final Node node = root.jjtGetChild(i);
        if (node instanceof ASTGroupConstraint)
          determineVariables(node, variables);
      }
    } else {
      if (root instanceof ASTVar) {
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