Examples with Triple org.apache.jena.graph.Triple used on opensource projects

Example 91 with Triple

use of org.apache.jena.graph.Triple in project jena by apache.

the class PropertyFunctionGenerator method findPropertyFunctionArgs.

private static void findPropertyFunctionArgs(Context context, BasicPattern triples, List<Triple> propertyFunctionTriples, Map<Triple, PropertyFunctionInstance> pfInvocations) {
    for (Triple pf : propertyFunctionTriples) {
        PropertyFunctionInstance pfi = magicProperty(context, pf, triples);
        pfInvocations.put(pf, pfi);
    }
}

Example 92 with Triple

use of org.apache.jena.graph.Triple in project jena by apache.

the class PropertyFunctionGenerator method compilePattern.

private static Op compilePattern(PropertyFunctionRegistry registry, BasicPattern pattern, Context context) {
    // Split into triples and property functions.
    // 1/ Find property functions.
    //    Property functions may involve other triples (for list arguments)
    //    (but leave the property function triple in-place as a marker)
    // 2/ Find arguments for property functions
    //    (but leave the property function triple in-place as a marker)
    // 3/ For remaining triples, put into basic graph patterns,
    //    and string together the procedure calls and BGPs.
    // Property functions seen
    List<Triple> propertyFunctionTriples = new ArrayList<>();
    // A copy of all triples (later, it is mutated)
    BasicPattern triples = new BasicPattern(pattern);
    // Find the triples invoking property functions, and those not.
    findPropertyFunctions(context, pattern, registry, propertyFunctionTriples);
    if (propertyFunctionTriples.size() == 0)
        //No property functions.
        return new OpBGP(pattern);
    // Map triple => property function instance
    Map<Triple, PropertyFunctionInstance> pfInvocations = new HashMap<>();
    // Removes triples of list arguments.  This mutates 'triples'
    findPropertyFunctionArgs(context, triples, propertyFunctionTriples, pfInvocations);
    // Now make the OpSequence structure.
    Op op = makeStages(triples, pfInvocations);
    return op;
}

Example 93 with Triple

use of org.apache.jena.graph.Triple in project jena by apache.

the class WriterStreamRDFBlocks method writePredicateObjectList.

private void writePredicateObjectList(Collection<Triple> triples) {
    // Find width
    int predicateMaxWidth = RiotLib.calcWidthTriples(pMap, baseURI, triples, MIN_PREDICATE, LONG_PREDICATE);
    boolean first = true;
    for (Triple triple : triples) {
        if (!first)
            out.println(" ;");
        else
            first = false;
        Node p = triple.getPredicate();
        outputNode(p);
        out.pad(predicateMaxWidth);
        out.print(' ', GAP_P_O);
        Node o = triple.getObject();
        outputNode(o);
    }
}

Example 94 with Triple

use of org.apache.jena.graph.Triple in project jena by apache.

the class GraphContainerUtils method countContainerMember.

private static int countContainerMember(Graph graph, Node container, Node containerType, Node member, boolean stopEarly) {
    if (graph == null) {
        Log.warn(GraphContainerUtils.class, "containerMember called with null graph");
        return 0;
    }
    if (container == null) {
        Log.warn(GraphContainerUtils.class, "containerMember called with null list");
        return 0;
    }
    if (member == null) {
        Log.warn(GraphContainerUtils.class, "containerMember called with null member");
        return 0;
    }
    if (!isContainer(graph, container, containerType))
        return 0;
    int count = 0;
    ExtendedIterator<Triple> iter = graph.find(container, Node.ANY, member);
    try {
        for (; iter.hasNext(); ) {
            Triple t = iter.next();
            Node p = t.getPredicate();
            String u = p.getURI();
            if (membershipPattern.matcher(u).matches()) {
                count++;
                if (stopEarly)
                    return count;
            }
        }
    } finally {
        iter.close();
    }
    return count;
}

Example 95 with Triple

use of org.apache.jena.graph.Triple in project jena by apache.

the class GraphContainerUtils method containerMembers.

public static Collection<Node> containerMembers(Graph graph, Node container, Node containerType) {
    if (!isContainer(graph, container, containerType))
        return null;
    ExtendedIterator<Triple> iter = graph.find(container, Node.ANY, Node.ANY);
    SortedMap<Integer, Node> triples = new TreeMap<>(order);
    try {
        for (; iter.hasNext(); ) {
            Triple t = iter.next();
            int index = getIndex(t);
            if (index == NOT_FOUND)
                continue;
            // Insert 
            triples.put(new Integer(index), t.getObject());
        }
    } finally {
        iter.close();
    }
    return triples.values();
}