Examples with Tuple org.apache.jena.atlas.lib.tuple.Tuple used on opensource projects

Example 16 with Tuple

use of org.apache.jena.atlas.lib.tuple.Tuple in project jena by apache.

the class StageGeneratorDirectTDB method execute.

@Override
public QueryIterator execute(BasicPattern pattern, QueryIterator input, ExecutionContext execCxt) {
    // --- In case this isn't for TDB
    Graph g = execCxt.getActiveGraph();
    if (!(g instanceof GraphTDB))
        // Not us - bounce up the StageGenerator chain
        return above.execute(pattern, input, execCxt);
    GraphTDB graph = (GraphTDB) g;
    Predicate<Tuple<NodeId>> filter = QC2.getFilter(execCxt.getContext());
    return PatternMatchTDB1.execute(graph, pattern, input, filter, execCxt);
}

Example 17 with Tuple

use of org.apache.jena.atlas.lib.tuple.Tuple in project jena by apache.

the class SolverRX method find.

private static Iterator<BindingNodeId> find(BindingNodeId bnid, NodeTupleTable nodeTupleTable, Node xGraphNode, Triple xPattern, boolean anyGraph, Predicate<Tuple<NodeId>> filter, ExecutionContext execCxt) {
    NodeTable nodeTable = nodeTupleTable.getNodeTable();
    Binding input = bnid.isEmpty() ? BindingFactory.empty() : new BindingTDB(bnid, nodeTable);
    Triple tPattern = Substitute.substitute(xPattern, input);
    Node graphNode = Substitute.substitute(xGraphNode, input);
    Node tGraphNode = anyGraph ? Quad.unionGraph : graphNode;
    // graphNode is ANY for union graph and null for default graph.
    // Var to ANY, Triple Term to ANY.
    Node g = (graphNode == null) ? null : nodeTopLevel(graphNode);
    Node s = nodeTopLevel(tPattern.getSubject());
    Node p = nodeTopLevel(tPattern.getPredicate());
    Node o = nodeTopLevel(tPattern.getObject());
    Tuple<Node> patternTuple = (g == null) ? TupleFactory.create3(s, p, o) : TupleFactory.create4(g, s, p, o);
    Iterator<Quad> dsgIter = accessData(patternTuple, nodeTupleTable, anyGraph, filter, execCxt);
    Iterator<Binding> matched = Iter.iter(dsgIter).map(dQuad -> SolverRX4.matchQuad(input, dQuad, tGraphNode, tPattern)).removeNulls();
    return convFromBinding(matched, nodeTable);
}

Example 18 with Tuple

use of org.apache.jena.atlas.lib.tuple.Tuple in project jena by apache.

the class ProcIndexCopy method tupleIndexCopy.

private static void tupleIndexCopy(TupleIndex index1, TupleIndex index2, String label) {
    ProgressMonitor monitor = ProgressMonitorOutput.create(log, label, tickQuantum, superTick);
    Timer timer = new Timer();
    timer.startTimer();
    monitor.start();
    Iterator<Tuple<NodeId>> iter1 = index1.all();
    long counter = 0;
    for (; iter1.hasNext(); ) {
        counter++;
        Tuple<NodeId> tuple = iter1.next();
        index2.add(tuple);
        monitor.tick();
    }
    index2.sync();
    monitor.finish();
    long time = timer.endTimer();
    float elapsedSecs = time / 1000F;
    float rate = (elapsedSecs != 0) ? counter / elapsedSecs : 0;
    print("Total: %,d records : %,.2f seconds : %,.2f records/sec [%s]", counter, elapsedSecs, rate, DateTimeUtils.nowAsString());
}

Example 19 with Tuple

use of org.apache.jena.atlas.lib.tuple.Tuple in project jena by apache.

the class TupleIndex method scan.

public static Iterator<Tuple<NodeId>> scan(Iterator<Tuple<NodeId>> iter, Tuple<NodeId> pattern) {
    int tupleLength = pattern.len();
    Predicate<Tuple<NodeId>> filter = new Predicate<Tuple<NodeId>>() {

        @Override
        public boolean test(Tuple<NodeId> item) {
            // Check on pattern and item (both in natural order)
            for (int i = 0; i < tupleLength; i++) {
                NodeId n = pattern.get(i);
                // The pattern must be null/Any or match the tuple being tested.
                if (!NodeId.isAny(n))
                    if (!item.get(i).equals(n))
                        return false;
            }
            return true;
        }
    };
    return Iter.filter(iter, filter);
}

Example 20 with Tuple

use of org.apache.jena.atlas.lib.tuple.Tuple in project jena by apache.

the class GraphTDB method graphBaseSize.

@Override
protected final int graphBaseSize() {
    if (isDefaultGraph())
        return (int) getNodeTupleTable().size();
    Node gn = getGraphName();
    boolean unionGraph = isUnionGraph(gn);
    gn = unionGraph ? Node.ANY : gn;
    QuadTable quadTable = getDatasetGraphTDB().getQuadTable();
    Iterator<Tuple<NodeId>> iter = quadTable.getNodeTupleTable().findAsNodeIds(gn, null, null, null);
    if (unionGraph) {
        iter = Iter.map(iter, project4TupleTo3Tuple);
        iter = Iter.distinctAdjacent(iter);
    }
    return (int) Iter.count(iter);
}