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

Example 36 with Tuple

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

the class SolverRX method matchQuadPattern.

// Entry point from SolverLib.
/*package*/
static Iterator<BindingNodeId> matchQuadPattern(Iterator<BindingNodeId> chain, Node graphNode, Triple tPattern, NodeTupleTable nodeTupleTable, Tuple<Node> patternTuple, boolean anyGraph, Predicate<Tuple<NodeId>> filter, ExecutionContext execCxt) {
    if (DATAPATH) {
        if (!tripleHasEmbTripleWithVars(tPattern))
            // No RDF-star <<>> with variables.
            return StageMatchTuple.access(nodeTupleTable, chain, patternTuple, filter, anyGraph, execCxt);
    }
    // RDF-star <<>> with variables.
    // This path should work regardless.
    boolean isTriple = (patternTuple.len() == 3);
    NodeTable nodeTable = nodeTupleTable.getNodeTable();
    Function<BindingNodeId, Iterator<BindingNodeId>> step = bnid -> find(bnid, nodeTupleTable, graphNode, tPattern, anyGraph, filter, execCxt);
    return Iter.flatMap(chain, step);
}

Example 37 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 38 with Tuple

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

the class IsoMatcher method tuplesQuads.

private static List<Tuple<Node>> tuplesQuads(Iterator<Quad> iter) {
    List<Tuple<Node>> tuples = new ArrayList<>();
    for (; iter.hasNext(); ) {
        Quad q = iter.next();
        Tuple<Node> tuple = tuple(q.getGraph(), q.getSubject(), q.getPredicate(), q.getObject());
        tuples.add(tuple);
    }
    return tuples;
}

Example 39 with Tuple

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

the class DatasetPrefixesTDB method loadPrefixMapping.

@Override
public synchronized void loadPrefixMapping(String graphName, PrefixMapping pmap) {
    Node g = NodeFactory.createURI(graphName);
    Iterator<Tuple<Node>> iter = nodeTupleTable.find(g, null, null);
    for (; iter.hasNext(); ) {
        Tuple<Node> t = iter.next();
        String prefix = t.get(1).getLiteralLexicalForm();
        String uri = t.get(2).getURI();
        pmap.setNsPrefix(prefix, uri);
    }
    Iter.close(iter);
}

Example 40 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 = ProgressMonitor.create(log, label, tickQuantum, superTick);
    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();
    long time = monitor.finish();
    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());
}