Examples with BindingBuilder org.apache.jena.sparql.engine.binding.BindingBuilder used on opensource projects

Example 11 with BindingBuilder

use of org.apache.jena.sparql.engine.binding.BindingBuilder in project jena by apache.

the class BuilderBinding method buildBinding.

private static Binding buildBinding(ItemList list) {
    // (row or (binding
    if (list.size() == 0)
        BuilderLib.broken(list, "Empty list");
    Item head = list.get(0);
    if (!head.isSymbolIgnoreCase(Tags.tagRow) && !head.isSymbolIgnoreCase(Tags.tagBinding))
        BuilderLib.broken(list, "Does not start (" + Tags.tagRow + " ...) or (" + Tags.tagBinding + " ...)", head);
    BindingBuilder builder = Binding.builder();
    for (int i = 1; i < list.size(); i++) {
        Item item = list.get(i);
        BuilderLib.checkList(item, "Attempt to build a binding pair from non-list: " + item);
        ItemList pair = item.getList();
        BuilderLib.checkLength(2, pair, "Need a pair for a binding");
        Var v = BuilderNode.buildVar(pair.get(0));
        Item cdr = pair.get(1);
        // undef
        if (cdr.isSymbolIgnoreCase(Tags.tagUndef) || cdr.isSymbolIgnoreCase(Tags.tagNull))
            continue;
        Node node = BuilderNode.buildNode(item.getList().get(1));
        if (node == null)
            BuilderLib.broken(item.getList().get(1), "Null node from " + item.getList().get(1));
        if (node.isVariable())
            BuilderLib.broken(item.getList().get(1), "No variables as table values: " + FmtUtils.stringForNode(node));
        if (!node.isConcrete())
            BuilderLib.broken(item.getList().get(1), "Only concrete nodes as table values: " + FmtUtils.stringForNode(node));
        builder.add(v, node);
    }
    return builder.build();
}

Example 12 with BindingBuilder

use of org.apache.jena.sparql.engine.binding.BindingBuilder in project jena by apache.

the class ValuesHandler method asElement.

public ElementData asElement() {
    ElementData ed = new ElementData();
    // remove all the vars that have been set
    List<Var> vars = new ArrayList<Var>(valuesTable.keySet());
    vars.removeAll(valueMap.keySet());
    if (vars.isEmpty()) {
        return ed;
    }
    vars.forEach(var -> ed.add(var));
    // List<Binding> bindings = new ArrayList<Binding>();
    int count = valuesTable.get(vars.get(0)).size();
    BindingBuilder builder = Binding.builder();
    for (int i = 0; i < count; i++) {
        builder.reset();
        for (Var var : vars) {
            List<Node> lst = valuesTable.get(var);
            // must be square
            if (lst.size() != count) {
                throw new QueryBuildException(String.format("The number of data items for %s (%s) is not the same as for %s (%s)", var, lst.size(), vars.get(0), count));
            }
            Node n = lst.get(i);
            if (n != null) {
                if (valueMap.containsKey(n)) {
                    n = valueMap.get(n);
                }
                builder.add(var, n);
            }
        }
        if (builder.isEmpty())
            continue;
        ed.add(builder.build());
    }
    return ed;
}

Example 13 with BindingBuilder

use of org.apache.jena.sparql.engine.binding.BindingBuilder in project jena by apache.

the class SolverLibTDB method convToBinding.

static Binding convToBinding(BindingNodeId bindingNodeIds, NodeTable nodeTable) {
    if (true)
        return new BindingTDB(bindingNodeIds, nodeTable);
    else {
        // Makes nodes immediately. Causing unnecessary NodeTable accesses
        // (e.g. project)
        BindingBuilder builder = Binding.builder();
        for (Var v : bindingNodeIds) {
            NodeId id = bindingNodeIds.get(v);
            Node n = nodeTable.getNodeForNodeId(id);
            builder.add(v, n);
        }
        return builder.build();
    }
}

Example 14 with BindingBuilder

use of org.apache.jena.sparql.engine.binding.BindingBuilder in project jena by apache.

the class TextQueryPF method resultsToQueryIterator.

private QueryIterator resultsToQueryIterator(Binding binding, Node subj, Node score, Node literal, Node graph, Node prop, Collection<TextHit> results, ExecutionContext execCxt) {
    log.trace("resultsToQueryIterator CALLED with results: {}", results);
    Var sVar = Var.isVar(subj) ? Var.alloc(subj) : null;
    Var scoreVar = (score == null) ? null : Var.alloc(score);
    Var literalVar = (literal == null) ? null : Var.alloc(literal);
    Var graphVar = (graph == null) ? null : Var.alloc(graph);
    Var propVar = (prop == null) ? null : Var.alloc(prop);
    Function<TextHit, Binding> converter = (TextHit hit) -> {
        if (score == null && literal == null)
            return sVar != null ? BindingFactory.binding(binding, sVar, hit.getNode()) : BindingFactory.binding(binding);
        BindingBuilder bmap = Binding.builder(binding);
        addIf(bmap, sVar, hit.getNode());
        addIf(bmap, scoreVar, NodeFactoryExtra.floatToNode(hit.getScore()));
        addIf(bmap, literalVar, hit.getLiteral());
        addIf(bmap, graphVar, hit.getGraph());
        addIf(bmap, propVar, hit.getProp());
        log.trace("resultsToQueryIterator RETURNING bmap: {}", bmap);
        return bmap.build();
    };
    Iterator<Binding> bIter = Iter.map(results.iterator(), converter);
    QueryIterator qIter = QueryIterPlainWrapper.create(bIter, execCxt);
    return qIter;
}

Example 15 with BindingBuilder

use of org.apache.jena.sparql.engine.binding.BindingBuilder in project jena by apache.

the class LinearIndex method toBinding.

static Binding toBinding(HashIndexTable.Key key, Map<Var, Integer> mappings) {
    Node[] values = key.getNodes();
    BindingBuilder b = Binding.builder();
    for (Map.Entry<Var, Integer> mapping : mappings.entrySet()) {
        Node value = values[mapping.getValue()];
        if (value != null)
            b.add(mapping.getKey(), value);
    }
    return b.build();
}