Examples of java.util.concurrent.ConcurrentSkipListMap$Node

lupos.sparql1_1.Node
Nodes hold keys and values, and are singly linked in sorted order, possibly with some intervening marker nodes. The list is headed by a dummy node accessible as head.node. The value field is declared only as Object because it takes special non-V values for marker and header nodes.


  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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  public DebugContainerQuery<BasicOperatorByteArray, Node> compileQueryDebugByteArray(
      final String query, final Prefix prefixInstance) throws ParseException {
    final SimpleNode root = StreamSPARQL1_1Parser.parse(query);
    if(root!=null){
      for (int i = 0; i < root.jjtGetNumChildren(); ++i) {
        final Node child = root.jjtGetChild(i); // get current child


        if (child instanceof ASTPrefixDecl) {
          // get prefix...
          final String prefix = ((ASTPrefixDecl) child).getPrefix();


          // get child of PrefixDecl to get the namespace...
          final Node prefixDeclChild = child.jjtGetChild(0);


          // if child of PrefixDecl is QuotedURIRef...
          if (prefixDeclChild instanceof ASTQuotedURIRef) {
            // get namespace...
            final String namespace = ((ASTQuotedURIRef) prefixDeclChild).toQueryString();

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    return msg;
  }


  public FederatedQuery(final Node federatedQuery) {
    this.federatedQuery = federatedQuery;
    final Node child0 = this.federatedQuery.jjtGetChild(0);
    if (child0 instanceof ASTVar) {
      this.endpoint = new Variable(((ASTVar) child0).getName());
    } else {
      this.endpoint = LiteralFactory.createURILiteralWithoutLazyLiteralWithoutException("<" + child0.toString() + ">");
    }
    this.variablesInServiceCall = new HashSet<Variable>();
    FederatedQuery.checkVariables(this.federatedQuery.jjtGetChild(1), this.variablesInServiceCall);
    this.surelyBoundVariablesInServiceCall = this.getSurelyBoundVariables();
  }

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      dcq = this.rdfsStreamQueryToIndexQueryDebugByteArray(query, root_param, prefixInstance);
    } else {
      final SimpleNode root = SPARQL1_1Parser.parse(query);


      for (int i = 0; i < root.jjtGetNumChildren(); ++i) {
        final Node child = root.jjtGetChild(i); // get current child


        if (child instanceof ASTPrefixDecl) {
          // get prefix...
          final String prefix = ((ASTPrefixDecl) child).getPrefix();


          // get child of PrefixDecl to get the namespace...
          final Node prefixDeclChild = child.jjtGetChild(0);


          // if child of PrefixDecl is QuotedURIRef...
          if (prefixDeclChild instanceof ASTQuotedURIRef) {
            // get namespace...
            final String namespace = ((ASTQuotedURIRef) prefixDeclChild)

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        // or from the whole DataEditor) must be first inserted!


        final ASTGroupConstraint node = SPARQL1_1Parser.parseGroupGraphPatternsAndRDFTerms(content);


        for (int i = 0; i < node.jjtGetNumChildren(); i++) {
          final Node child = node.jjtGetChild(i);


          if (child instanceof ASTGroupConstraint) {
            final VisualQueryGenerator vqg = new VisualQueryGenerator(
                ((VisualGraphOperatorWithPrefix) this.visualGraphs
                    .get(0)).prefix);


            final Object data = child.jjtAccept(
                (SPARQL1_1ParserVisitor) vqg, rdfHash);


            result.add(data);


            final Operator newOp = (Operator) data;

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  }


  public void registerElementsInPrefixInstance(final SimpleNode root) {
    // walk through children of root node...
    for (int i = 0; i < root.jjtGetNumChildren(); ++i) {
      final Node child = root.jjtGetChild(i); // get current child


      // if children is a prefix declaration...
      if (child instanceof ASTPrefixDecl) {
        // get prefix...
        final String prefixString = ((ASTPrefixDecl) child).getPrefix();


        // get child of PrefixDecl to get the name space...
        final Node prefixDeclChild = child.jjtGetChild(0);


        // if child of PrefixDecl is QuotedURIRef...
        if (prefixDeclChild instanceof ASTQuotedURIRef) {
          // get name space...
          final String namespace = ((ASTQuotedURIRef) prefixDeclChild)

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public abstract class ServiceGeneratorToJoinWithOriginal extends ServiceGenerator {
  @Override
  public void insertFederatedQueryOperator(final ASTService node, final OperatorConnection connection){
    SeveralSucceedingOperators sso = new SeveralSucceedingOperators();
    BasicOperator federatedQuery = this.getFederatedQuery(node);
    Node child0 = node.jjtGetChild(0);
    if(child0 instanceof ASTVar){
      Sort sort = new Sort();
      LinkedList<Variable> listOfVars = new LinkedList<Variable>();
      listOfVars.add(new Variable(((ASTVar)child0).getName()));
      ComparatorVariables comparator = new ComparatorVariables(listOfVars);

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      try {
        final ASTGroupConstraint node = SPARQL1_1Parser.parseN3GroupGraphPatternsAndRDFTerms(content);


        for(int i = 0; i < node.jjtGetNumChildren(); i++) {
          final Node child = node.jjtGetChild(i);


          if(child instanceof ASTGroupConstraint) {
            final VisualDataGenerator vdg = new VisualDataGenerator(((VisualGraphOperatorWithPrefix) this.visualGraphs.get(0)).prefix);
            rdfTermToJoin.addAll((Collection<Operator>) child.jjtAccept((SPARQL1_1ParserVisitor) vdg, rdfHash));
          }
          else {
            // it is an RDF term!
            final Item item = SPARQLCoreParserVisitorImplementation.getItem(child);

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      final HashMap<Item, QueryRDFTerm> rdfHash = new HashMap<Item, QueryRDFTerm>();
      final LinkedHashSet<Operator> rdfTermToJoin = new LinkedHashSet<Operator>();


      for (int i = 0; i < node.jjtGetNumChildren(); i++) {
        final Node n = node.jjtGetChild(i);


        if (n instanceof ASTTripleSet) {
          final QueryRDFTerm rdft = (QueryRDFTerm) n.jjtAccept(
              this, rdfHash);


          rdfTermToJoin.add(rdft);


        } else if (n instanceof ASTUnionConstraint
            || n instanceof ASTGraphConstraint) {
          numberUnionOrGraphConstraints++;
        }
      }


      int numberJoinPartner = numberUnionOrGraphConstraints;


      if (rdfTermToJoin.size() > 0) {
        numberJoinPartner++;
      }


      Operator testOP = null;


      if (numberJoinPartner > 1) {
        final Join joinOp = new Join();


        int j = 0;


        for (int i = 0; i < node.jjtGetNumChildren(); i++) {
          final Node n = node.jjtGetChild(i);


          if (n instanceof ASTUnionConstraint
              || n instanceof ASTGraphConstraint) {
            testOP = (Operator) n.jjtAccept(
                this, data);


            if (testOP != null) {
              joinOp.addSucceedingOperator(new OperatorIDTuple<Operator>(
                  testOP, j));
            }


            j++;
          }
        }


        if (rdfTermToJoin.size() > 0) {
          final TripleContainer opContainer = new TripleContainer(
              rdfTermToJoin);


          joinOp.addSucceedingOperator(new OperatorIDTuple<Operator>(
              opContainer, j));
        }


        testOP = joinOp;
      } else { // There should be only triple patterns or one
        // ASTUnionConstraint / ASTGraphConstraint
        for (int i = 0; i < node.jjtGetNumChildren(); i++) {
          final Node n = node.jjtGetChild(i);


          if (n instanceof ASTTripleSet) {
            final TripleContainer opContainer = new TripleContainer(
                rdfTermToJoin);


            testOP = opContainer;


            break;
          } else if (n instanceof ASTUnionConstraint
              || n instanceof ASTGraphConstraint) {
            testOP = (Operator) n.jjtAccept(
                this, data);


            break;
          }
        }
      }


      for (int i = 0; i < node.jjtGetNumChildren(); i++) {
        final Node n = node.jjtGetChild(i);


        if (n instanceof ASTOptionalConstraint) {
          final Optional optional = new Optional();


          if (testOP != null) {
            optional.addSucceedingOperator(new OperatorIDTuple<Operator>(
                testOP, 0));
          }


          testOP = (Operator) n.jjtAccept(
              this, null);


          if (testOP != null) {
            optional.addSucceedingOperator(new OperatorIDTuple<Operator>(
                testOP, 1));
          }


          testOP = optional;
        }
      }


      for (int i = 0; i < node.jjtGetNumChildren(); i++) {
        final Node n = node.jjtGetChild(i);


        Operator filterOp = null;


        if (n instanceof ASTFilterConstraint) {
          filterOp = (Operator) n.jjtAccept(
              this, data);


          if (filterOp != null) {
            filterOp.addSucceedingOperator(new OperatorIDTuple<Operator>(
                testOP, 0));

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    final int numberChildren = node.jjtGetNumChildren();
    final String graphConstraint = null;


    Item item=null;


    final Node child = node.jjtGetChild(0);


    if (child instanceof ASTQuotedURIRef) {
      try {
        item = LiteralFactory.createURILiteral(((ASTQuotedURIRef) child).getQRef());
      } catch (final URISyntaxException e) {

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