Examples with Iterator org.drools.core.util.Iterator used on opensource projects

Example 26 with Iterator

use of org.drools.core.util.Iterator in project drools by kiegroup.

the class ActivationIteratorTest method testLianPlusEvaln.

@Test
public void testLianPlusEvaln() {
    String str = "package org.kie.test \n" + "\n" + "rule rule1 @Propagation(EAGER) when\n" + "    $s : String( this != 'xx' )\n" + "    eval( 1 == 1 ) \n" + "then\n" + "end\n" + "rule rule6 @Propagation(EAGER) when\n" + "     java.util.Map()\n" + "then\n" + "end\n" + "\n";
    KieSession ksession = new KieHelper().addContent(str, ResourceType.DRL).build().newKieSession();
    for (int i = 0; i < 5; i++) {
        ksession.insert(new String("" + i));
    }
    evaluateEagerList(ksession);
    Iterator it = ActivationIterator.iterator(ksession);
    List list = new ArrayList();
    for (AgendaItem act = (AgendaItem) it.next(); act != null; act = (AgendaItem) it.next()) {
        list.add(act.getRule().getName() + ":" + act.getDeclarationValue("$s") + ":" + act.isQueued());
    }
    assertContains(new String[] { "rule1:0:true", "rule1:1:true", "rule1:2:true", "rule1:3:true", "rule1:4:true" }, list);
    ksession.fireAllRules();
    it = ActivationIterator.iterator(ksession);
    list = new ArrayList();
    for (AgendaItem act = (AgendaItem) it.next(); act != null; act = (AgendaItem) it.next()) {
        list.add(act.getRule().getName() + ":" + act.getDeclarationValue("$s") + ":" + act.isQueued());
    }
    assertContains(new String[] { "rule1:0:false", "rule1:1:false", "rule1:2:false", "rule1:3:false", "rule1:4:false" }, list);
}

Example 27 with Iterator

use of org.drools.core.util.Iterator in project drools by kiegroup.

the class ActivationIteratorTest method testLianPlusEvalnWithSharing.

@Test
public void testLianPlusEvalnWithSharing() {
    // Rule 0 single LiaNode
    // Rule 1 and 2 are shared
    // Rule 3 shares the LIANode with 1 and 2
    // Rule 4 Shares the eval with 3
    String str = "package org.kie.test \n" + "\n" + "rule rule0 @Propagation(EAGER) when\n" + "    $s : String( this != 'xx' )\n" + "then\n" + "end\n" + "rule rule1 @Propagation(EAGER) when\n" + "    $s : String( this != 'xx' )\n" + "    eval( Integer.parseInt( $s ) <= 2 ) \n" + "then\n" + "end\n" + "rule rule2 @Propagation(EAGER) when\n" + "    $s : String( this != 'xx' )\n" + "    eval( Integer.parseInt( $s ) <= 2 ) \n" + "then\n" + "end\n" + "rule rule3 @Propagation(EAGER) when\n" + "    $s : String( this != 'xx' )\n" + "    eval( Integer.parseInt( $s ) > 2 ) \n" + "then\n" + "end\n" + "rule rule4 @Propagation(EAGER) when\n" + "    $s : String( this != 'xx' )\n" + "    eval( Integer.parseInt( $s ) > 2 ) \n" + "    eval( Integer.parseInt( $s ) > 3 ) \n" + "then\n" + "end\n" + "rule rule5 @Propagation(EAGER) when\n" + "    $s : String( this != 'xx' )\n" + "    eval( Integer.parseInt( $s ) > 2 ) \n" + "    eval( Integer.parseInt( $s ) > 3 ) \n" + "then\n" + "end\n" + "rule rule6 @Propagation(EAGER) when\n" + "     java.util.Map()\n" + "then\n" + "end\n" + "\n";
    KieSession ksession = new KieHelper().addContent(str, ResourceType.DRL).build().newKieSession();
    for (int i = 0; i < 5; i++) {
        ksession.insert(new String("" + i));
    }
    evaluateEagerList(ksession);
    Iterator it = ActivationIterator.iterator(ksession);
    List list = new ArrayList();
    for (AgendaItem act = (AgendaItem) it.next(); act != null; act = (AgendaItem) it.next()) {
        list.add(act.getRule().getName() + ":" + act.getDeclarationValue("$s") + ":" + act.isQueued());
    }
    assertContains(new String[] { "rule0:0:true", "rule0:1:true", "rule0:2:true", "rule0:3:true", "rule0:4:true", "rule1:0:true", "rule1:1:true", "rule1:2:true", "rule2:0:true", "rule2:1:true", "rule2:2:true", "rule3:3:true", "rule3:4:true", "rule4:4:true", "rule5:4:true" }, list);
    ksession.fireAllRules();
    it = ActivationIterator.iterator(ksession);
    list = new ArrayList();
    for (AgendaItem act = (AgendaItem) it.next(); act != null; act = (AgendaItem) it.next()) {
        list.add(act.getRule().getName() + ":" + act.getDeclarationValue("$s") + ":" + act.isQueued());
    }
    assertContains(new String[] { "rule0:0:false", "rule0:1:false", "rule0:2:false", "rule0:3:false", "rule0:4:false", "rule1:0:false", "rule1:1:false", "rule1:2:false", "rule2:0:false", "rule2:1:false", "rule2:2:false", "rule3:3:false", "rule3:4:false", "rule4:4:false", "rule5:4:false" }, list);
}

Example 28 with Iterator

use of org.drools.core.util.Iterator in project drools by kiegroup.

the class LeftTupleIterator method getFirstLeftTuple.

public LeftTuple getFirstLeftTuple(LeftTupleSource source, LeftTupleSink sink, InternalWorkingMemory wm) {
    if (source instanceof AccumulateNode) {
        AccumulateMemory accmem = (AccumulateMemory) wm.getNodeMemory((MemoryFactory) source);
        BetaMemory memory = accmem.getBetaMemory();
        FastIterator localIt = memory.getLeftTupleMemory().fullFastIterator();
        Tuple leftTuple = BetaNode.getFirstTuple(memory.getLeftTupleMemory(), localIt);
        if (leftTuple != null) {
            AccumulateContext accctx = (AccumulateContext) leftTuple.getContextObject();
            return accctx.getResultLeftTuple();
        }
        return null;
    }
    if (source instanceof JoinNode || source instanceof NotNode || source instanceof FromNode || source instanceof AccumulateNode) {
        BetaMemory memory;
        FastIterator localIt;
        if (source instanceof FromNode) {
            memory = ((FromMemory) wm.getNodeMemory((MemoryFactory) source)).getBetaMemory();
        } else if (source instanceof AccumulateNode) {
            memory = ((AccumulateMemory) wm.getNodeMemory((MemoryFactory) source)).getBetaMemory();
        } else {
            memory = (BetaMemory) wm.getNodeMemory((MemoryFactory) source);
        }
        localIt = memory.getLeftTupleMemory().fullFastIterator();
        Tuple leftTuple = BetaNode.getFirstTuple(memory.getLeftTupleMemory(), localIt);
        while (leftTuple != null) {
            for (LeftTuple childleftTuple = leftTuple.getFirstChild(); childleftTuple != null; childleftTuple = childleftTuple.getHandleNext()) {
                if (childleftTuple.getTupleSink() == sink) {
                    return childleftTuple;
                }
            }
            leftTuple = (LeftTuple) localIt.next(leftTuple);
        }
    }
    if (source instanceof ExistsNode) {
        BetaMemory memory = (BetaMemory) wm.getNodeMemory((MemoryFactory) source);
        FastIterator localIt = memory.getRightTupleMemory().fullFastIterator();
        RightTuple rightTuple = (RightTuple) BetaNode.getFirstTuple(memory.getRightTupleMemory(), localIt);
        while (rightTuple != null) {
            if (rightTuple.getBlocked() != null) {
                for (LeftTuple leftTuple = rightTuple.getBlocked(); leftTuple != null; leftTuple = leftTuple.getBlockedNext()) {
                    for (LeftTuple childleftTuple = leftTuple.getFirstChild(); childleftTuple != null; childleftTuple = childleftTuple.getHandleNext()) {
                        if (childleftTuple.getTupleSink() == sink) {
                            return childleftTuple;
                        }
                    }
                }
            }
            rightTuple = (RightTuple) localIt.next(rightTuple);
        }
    } else if (source instanceof LeftInputAdapterNode) {
        ObjectSource os = ((LeftInputAdapterNode) source).getParentObjectSource();
        while (!(os instanceof ObjectTypeNode)) {
            os = os.getParentObjectSource();
        }
        ObjectTypeNode otn = (ObjectTypeNode) os;
        otnIterator = wm.getNodeMemory(otn).iterator();
        while (otnIterator.hasNext()) {
            InternalFactHandle handle = otnIterator.next();
            LeftTuple leftTuple = handle.findFirstLeftTuple(lt -> lt.getTupleSink() == sink);
            if (leftTuple != null) {
                return leftTuple;
            }
        }
    } else if (source instanceof EvalConditionNode || source instanceof QueryElementNode) {
        LeftTuple parentLeftTuple = getFirstLeftTuple(source.getLeftTupleSource(), (LeftTupleSink) source, wm);
        while (parentLeftTuple != null) {
            for (LeftTuple leftTuple = parentLeftTuple.getFirstChild(); leftTuple != null; leftTuple = leftTuple.getHandleNext()) {
                if (leftTuple.getTupleSink() == sink) {
                    return leftTuple;
                }
            }
            parentLeftTuple = getNextLeftTuple(source.getLeftTupleSource(), (LeftTupleSink) source, parentLeftTuple, wm);
        }
    }
    return null;
}

Example 29 with Iterator

use of org.drools.core.util.Iterator in project drools by kiegroup.

the class TupleIndexHashTable method toString.

public String toString() {
    StringBuilder builder = new StringBuilder();
    Iterator it = iterator();
    for (Tuple leftTuple = (Tuple) it.next(); leftTuple != null; leftTuple = (Tuple) it.next()) {
        builder.append(leftTuple).append("\n");
    }
    return builder.toString();
}

Example 30 with Iterator

use of org.drools.core.util.Iterator in project drools by kiegroup.

the class ObjectTypeNodeParser method getFirstAlphaNode.

/**
 * Returns the first {@link org.kie.reteoo.AlphaNode} from the specified {@link ObjectHashMap}.
 *
 * @param hashedAlphaNodes map of hashed AlphaNodes
 * @return first alpha from the specified map
 * @throws IllegalArgumentException thrown if the map doesn't contain any alpha nodes
 */
private AlphaNode getFirstAlphaNode(final ObjectHashMap hashedAlphaNodes) throws IllegalArgumentException {
    AlphaNode firstAlphaNode;
    final Iterator iter = hashedAlphaNodes.iterator();
    final ObjectHashMap.ObjectEntry entry = (ObjectHashMap.ObjectEntry) iter.next();
    if (entry != null) {
        firstAlphaNode = (AlphaNode) entry.getValue();
    } else {
        throw new IllegalArgumentException("ObjectHashMap does not contain any hashed AlphaNodes!");
    }
    return firstAlphaNode;
}