Package org.drools.common

Examples of org.drools.common.InternalAgenda

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        if ( item != null && item.isActivated() ) {
            // already activated, do nothing
            return;
        }

        final InternalAgenda agenda = (InternalAgenda) workingMemory.getAgenda();

        // if the current Rule is no-loop and the origin rule is the same then return
        if ( this.rule.isNoLoop() && this.rule.equals( context.getRuleOrigin() ) ) {
            agenda.increaseDormantActivations();
            return;
        }

        final Timer timer = this.rule.getTimer();

        if ( timer != null ) {
            if ( item == null ) {
                item = agenda.createScheduledAgendaItem( leftTuple,
                                                         context,
                                                         this.rule,
                                                         this.subrule );
            }
            agenda.scheduleItem( (ScheduledAgendaItem) item,
                                 workingMemory );
            item.setActivated( true );
            //            workingMemory.removeLogicalDependencies( item,
            //                                                     context,
            //                                                     this.rule );

            ((EventSupport) workingMemory).getAgendaEventSupport().fireActivationCreated( item,
                                                                                          workingMemory );
        } else {
            if ( this.rule.getCalendars() != null ) {
                // for normal activations check for Calendar inclusion here, scheduled activations check on each trigger point
                long timestamp = workingMemory.getSessionClock().getCurrentTime();
                for ( String cal : this.rule.getCalendars() ) {
                    if ( !workingMemory.getCalendars().get( cal ).isTimeIncluded( timestamp ) ) {
                        return;
                    }
                }
            }

            if ( item == null ) {
                // -----------------
                // Lazy instantiation and addition to the Agenda of AgendGroup
                // implementations
                // ----------------
                item = agenda.createAgendaItem( leftTuple,
                                                rule.getSalience().getValue( leftTuple,
                                                                             workingMemory ),
                                                context,
                                                this.rule,
                                                this.subrule );
                item.setSequenence( this.sequence );
            } else {
                item.setSalience( rule.getSalience().getValue( leftTuple,
                                                               workingMemory ) ); // need to re-evaluate salience, as used fields may have changed
                item.setPropagationContext( context ); // update the Propagation Context
            }

            boolean added = agenda.addActivation( item );

            item.setActivated( added );

            if ( added ) {
                ((EventSupport) workingMemory).getAgendaEventSupport().fireActivationCreated( item,
                                                                                              workingMemory );
            }
        }

        agenda.increaseActiveActivations();
    }
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                                                            rule1,
                                                            rule1.getLhs(),
                                                            buildContext );
        final ReteooWorkingMemory workingMemory = (ReteooWorkingMemory) ruleBase.newStatefulSession();

        final InternalAgenda agenda = (InternalAgenda) workingMemory.getAgenda();

        final Consequence consequence = new Consequence() {
            private static final long serialVersionUID = 510l;

            public void evaluate(KnowledgeHelper knowledgeHelper,
                                 WorkingMemory workingMemory) {
                // do nothing
            }

            public void readExternal(ObjectInput in) throws IOException,
                                                    ClassNotFoundException {

            }

            public void writeExternal(ObjectOutput out) throws IOException {

            }
           
            public String getName() {
                return "default";
            }
        };

        rule1.setConsequence( consequence );

        final DefaultFactHandle handle1 = (DefaultFactHandle) workingMemory.insert( "o1" );
        final LeftTuple tuple1 = new LeftTuple( handle1,
                                                null,
                                                true );

        final PropagationContext context1 = new PropagationContextImpl( 0,
                                                                        PropagationContext.ASSERTION,
                                                                        null,
                                                                        null,
                                                                        null );

        // Test single activation for a single logical assertions
        node.assertLeftTuple( tuple1,
                              context1,
                              workingMemory );

        final String logicalString = new String( "logical" );
        InternalFactHandle logicalHandle = (InternalFactHandle) workingMemory.insert( logicalString,
                                                                                      false,
                                                                                      true,
                                                                                      rule1,
                                                                                      (Activation)tuple1.getObject() );
        new RightTuple( logicalHandle,
                        sink );
        // Retract the tuple and test the logically asserted fact was also retracted
        node.retractLeftTuple( tuple1,
                               context1,
                               workingMemory );

        workingMemory.executeQueuedActions();

        assertLength( 1,
                      sink.getRetracted() );

        Object[] values = (Object[]) sink.getRetracted().get( 0 );

        assertSame( logicalHandle,
                    ((RightTuple) values[0]).getFactHandle() );

        // Test single activation for a single logical assertions. This also
        // tests that logical assertions live on after the related Activation
        // has fired.
        node.assertLeftTuple( tuple1,
                              context1,
                              workingMemory );
        logicalHandle = (InternalFactHandle) workingMemory.insert( logicalString,
                                                                   false,
                                                                   true,
                                                                   rule1,
                                                                   (Activation)tuple1.getObject() );

        new RightTuple( logicalHandle,
                        sink );

        agenda.fireNextItem( null );

        node.retractLeftTuple( tuple1,
                               context1,
                               workingMemory );
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    //
    @Test
    public void testAutoFocus() throws ConsequenceException {
        final ReteooWorkingMemory workingMemory = (ReteooWorkingMemory) ruleBase.newStatefulSession();
        final InternalAgenda agenda = (InternalAgenda) workingMemory.getAgenda();

        // create the agendaGroup
        final AgendaGroup agendaGroup = new BinaryHeapQueueAgendaGroup( "agendaGroup",
                                                                        ruleBase );
        agenda.addAgendaGroup( agendaGroup );

        // create the consequence
        final Consequence consequence = new Consequence() {
            private static final long serialVersionUID = 510l;

            public void evaluate(KnowledgeHelper knowledgeHelper,
                                 WorkingMemory workingMemory) {
                // do nothing
            }

            public void readExternal(ObjectInput in) throws IOException,
                                                    ClassNotFoundException {

            }

            public void writeExternal(ObjectOutput out) throws IOException {

            }

            public String getName() {
                return "default";
            }
        };

        final LeftTuple tuple = new LeftTuple( new DefaultFactHandle( 1,
                                                                      "cheese" ),
                                               null,
                                               true );

        // create a rule for the agendaGroup
        final Rule rule = new Rule( "test-rule",
                                    "agendaGroup" );
        final RuleTerminalNode node = new RuleTerminalNode( 2,
                                                            new MockTupleSource( 2 ),
                                                            rule,
                                                            rule.getLhs(),
                                                            buildContext );
        rule.setConsequence( consequence );
        final PropagationContext context = new PropagationContextImpl( 0,
                                                                       PropagationContext.ASSERTION,
                                                                       rule,
                                                                       null,
                                                                       null );

        // first test that autoFocus=false works. Here the rule should not fire
        // as its agendaGroup does not have focus.
        rule.setAutoFocus( false );

        node.assertLeftTuple( tuple,
                              context,
                              workingMemory );

        // check activation as added to the agendaGroup
        assertEquals( 1,
                      agendaGroup.size() );

        // fire next item, agendaGroup should not fire as its not on the focus stack
        // and thus should retain its sinle activation
        agenda.fireNextItem( null );
        assertEquals( 1,
                      agendaGroup.size() );

        // Clear the agenda we we can test again
        agenda.clearAndCancel();
        assertEquals( 0,
                      agendaGroup.size() );

        // Now test that autoFocus=true works. Here the rule should fire as its
        // agendaGroup gets the focus when the activation is created.
        rule.setAutoFocus( true );

        node.assertLeftTuple( tuple,
                              context,
                              workingMemory );

        assertEquals( 1,
                      agendaGroup.size() );
        agenda.fireNextItem( null );
        assertEquals( 0,
                      agendaGroup.size() );
    }
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    @Test
    public void testAgendaGroupLockOnActive() {
        final InternalRuleBase ruleBase = (InternalRuleBase) RuleBaseFactory.newRuleBase();

        final ReteooWorkingMemory workingMemory = (ReteooWorkingMemory) ruleBase.newStatefulSession();
        final InternalAgenda agenda = (InternalAgenda) workingMemory.getAgenda();

        // create the agendaGroup
        final InternalAgendaGroup agendaGroup = new BinaryHeapQueueAgendaGroup( "agendaGroup",
                                                                                ruleBase );
        agenda.addAgendaGroup( agendaGroup );

        final LeftTuple tuple = new LeftTuple( new DefaultFactHandle( 1,
                                                                      "cheese" ),
                                               null,
                                               true );
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                                                            new MockTupleSource( idGenerator.getNextId() ),
                                                            rule1,
                                                            rule1.getLhs() );
        final ReteooWorkingMemory workingMemory = (ReteooWorkingMemory) ruleBase.newStatefulSession();

        final InternalAgenda agenda = (InternalAgenda) workingMemory.getAgenda();

        final Consequence consequence = new Consequence() {
            /**
             *
             */
            private static final long serialVersionUID = 400L;

            public void evaluate(KnowledgeHelper knowledgeHelper,
                                 WorkingMemory workingMemory) {
                // do nothing
            }
        };

        rule1.setConsequence( consequence );

        final DefaultFactHandle handle1 = (DefaultFactHandle) workingMemory.insert( "o1" );
        final ReteTuple tuple1 = new ReteTuple( handle1 );

        final PropagationContext context1 = new PropagationContextImpl( 0,
                                                                        PropagationContext.ASSERTION,
                                                                        null,
                                                                        null );

        // Test single activation for a single logical assertions
        node.assertTuple( tuple1,
                          context1,
                          workingMemory );

        final String logicalString = new String( "logical" );
        FactHandle logicalHandle = workingMemory.insert( logicalString,
                                                         false,
                                                         true,
                                                         rule1,
                                                         tuple1.getActivation() );
        // Retract the tuple and test the logically asserted fact was also retracted
        node.retractTuple( tuple1,
                           context1,
                           workingMemory );

        workingMemory.executeQueuedActions();

        assertLength( 1,
                      sink.getRetracted() );

        Object[] values = (Object[]) sink.getRetracted().get( 0 );

        assertSame( logicalHandle,
                    values[0] );

        // Test single activation for a single logical assertions. This also
        // tests that logical assertions live on after the related Activation
        // has fired.
        node.assertTuple( tuple1,
                          context1,
                          workingMemory );
        logicalHandle = workingMemory.insert( logicalString,
                                              false,
                                              true,
                                              rule1,
                                              tuple1.getActivation() );

        agenda.fireNextItem( null );

        node.retractTuple( tuple1,
                           context1,
                           workingMemory );

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    public void testRuleFlowGroup() {
        final RuleBase ruleBase = RuleBaseFactory.newRuleBase();

        final ReteooWorkingMemory workingMemory = (ReteooWorkingMemory) ruleBase.newStatefulSession();

        final InternalAgenda agenda = (InternalAgenda) workingMemory.getAgenda();

        final List list = new ArrayList();

        // create the consequence
        final Consequence consequence = new Consequence() {
            /**
             *
             */
            private static final long serialVersionUID = 400L;

            public void evaluate(KnowledgeHelper knowledgeHelper,
                                 WorkingMemory workingMemory) {
                list.add( knowledgeHelper.getRule() );
            }
        };

        // create a rule for each rule flow groups
        final Rule rule0 = new Rule( "test-rule0" );
        rule0.setRuleFlowGroup( "rule-flow-group-0" );
        rule0.setConsequence( consequence );

        final RuleTerminalNode node0 = new RuleTerminalNode( 3,
                                                             new MockTupleSource( 2 ),
                                                             rule0,
                                                             rule0.getLhs() );

        final Rule rule1 = new Rule( "test-rule1" );
        rule1.setRuleFlowGroup( "rule-flow-group-1" );
        rule1.setConsequence( consequence );

        final RuleTerminalNode node1 = new RuleTerminalNode( 4,
                                                             new MockTupleSource( 2 ),
                                                             rule1,
                                                             rule1.getLhs() );

        final Rule rule2 = new Rule( "test-rule2" );
        rule2.setRuleFlowGroup( "rule-flow-group-2" );
        rule2.setConsequence( consequence );
        rule2.setSalience( new SalienceInteger( 10 ) );

        final RuleTerminalNode node2 = new RuleTerminalNode( 5,
                                                             new MockTupleSource( 2 ),
                                                             rule2,
                                                             rule2.getLhs() );

        final Rule rule3 = new Rule( "test-rule3" );
        rule3.setRuleFlowGroup( "rule-flow-group-3" );
        rule3.setConsequence( consequence );

        final RuleTerminalNode node3 = new RuleTerminalNode( 6,
                                                             new MockTupleSource( 2 ),
                                                             rule3,
                                                             rule3.getLhs() );

        final PropagationContext context0 = new PropagationContextImpl( 0,
                                                                        PropagationContext.ASSERTION,
                                                                        rule0,
                                                                        null );

        // nodes
        final StartNode start = new StartNodeImpl();
        final RuleSetNode ruleSet0 = new RuleSetNodeImpl();
        ruleSet0.setRuleFlowGroup( "rule-flow-group-0" );
        final RuleSetNode ruleSet1 = new RuleSetNodeImpl();
        ruleSet1.setRuleFlowGroup( "rule-flow-group-1" );
        final RuleSetNode ruleSet2 = new RuleSetNodeImpl();
        ruleSet2.setRuleFlowGroup( "rule-flow-group-2" );
        final RuleSetNode ruleSet3 = new RuleSetNodeImpl();
        ruleSet3.setRuleFlowGroup( "rule-flow-group-3" );
        final Split split = new SplitImpl();
        split.setType( Split.TYPE_AND );
        final Join join = new JoinImpl();
        join.setType( Join.TYPE_AND );
        final EndNode end = new EndNodeImpl();
        // connections
        new ConnectionImpl( start,
                        ruleSet0,
                        Connection.TYPE_NORMAL );
        new ConnectionImpl( ruleSet0,
                        split,
                        Connection.TYPE_NORMAL );
        new ConnectionImpl( split,
                        ruleSet1,
                        Connection.TYPE_NORMAL );
        new ConnectionImpl( split,
                        ruleSet2,
                        Connection.TYPE_NORMAL );
        new ConnectionImpl( ruleSet1,
                        join,
                        Connection.TYPE_NORMAL );
        new ConnectionImpl( ruleSet2,
                        join,
                        Connection.TYPE_NORMAL );
        new ConnectionImpl( join,
                        ruleSet3,
                        Connection.TYPE_NORMAL );
        new ConnectionImpl( ruleSet3,
                        end,
                        Connection.TYPE_NORMAL );

        // process
        final RuleFlowProcess process = new RuleFlowProcessImpl();
        process.addNode( start );
        process.addNode( ruleSet0 );
        process.addNode( ruleSet1 );
        process.addNode( ruleSet2 );
        process.addNode( ruleSet3 );
        process.addNode( split );
        process.addNode( join );
        process.addNode( end );

        // proces instance
        final RuleFlowProcessInstance processInstance = new RuleFlowProcessInstanceImpl();
        processInstance.setWorkingMemory( workingMemory );
        processInstance.setProcess( process );
        assertEquals( ProcessInstance.STATE_PENDING,
                      processInstance.getState() );

        final RuleFlowGroupImpl ruleFlowGroup0 = (RuleFlowGroupImpl) agenda.getRuleFlowGroup( "rule-flow-group-0" );
        final RuleFlowGroupImpl ruleFlowGroup1 = (RuleFlowGroupImpl) agenda.getRuleFlowGroup( "rule-flow-group-1" );
        final RuleFlowGroupImpl ruleFlowGroup2 = (RuleFlowGroupImpl) agenda.getRuleFlowGroup( "rule-flow-group-2" );
        final RuleFlowGroupImpl ruleFlowGroup3 = (RuleFlowGroupImpl) agenda.getRuleFlowGroup( "rule-flow-group-3" );

        final ReteTuple tuple0 = new ReteTuple( new DefaultFactHandle( 1,
                                                                       "cheese" ) );
        node0.assertTuple( tuple0,
                           context0,
                           workingMemory );

        final ReteTuple tuple1 = new ReteTuple( new DefaultFactHandle( 1,
                                                                       "cheese" ) );
        node0.assertTuple( tuple1,
                           context0,
                           workingMemory );

        final ReteTuple tuple2 = new ReteTuple( new DefaultFactHandle( 1,
                                                                       "cheese" ) );
        node1.assertTuple( tuple2,
                           context0,
                           workingMemory );

        final ReteTuple tuple3 = new ReteTuple( new DefaultFactHandle( 1,
                                                                       "cheese" ) );
        node2.assertTuple( tuple3,
                           context0,
                           workingMemory );

        final ReteTuple tuple4 = new ReteTuple( new DefaultFactHandle( 1,
                                                                       "cheese" ) );
        node3.assertTuple( tuple4,
                           context0,
                           workingMemory );

        // RuleFlowGroups should be populated, but the agenda shouldn't
        assertEquals( 2,
                      ruleFlowGroup0.size() );
        assertEquals( 1,
                      ruleFlowGroup1.size() );
        assertEquals( 1,
                      ruleFlowGroup2.size() );
        assertEquals( 1,
                      ruleFlowGroup3.size() );
        assertEquals( 0,
                      agenda.agendaSize() );

        // Activate process instance, the activations stay in the group,
        // but should now also be in the Agenda
        processInstance.start();
        assertEquals( ProcessInstance.STATE_ACTIVE,
                      processInstance.getState() );
        assertEquals( 2,
                      ruleFlowGroup0.size() );
        assertEquals( 2,
                      agenda.agendaSize() );

        // As we fire each rule they are removed from both the Agenda and the RuleFlowGroup
        agenda.fireNextItem( null );
        assertEquals( 1,
                      ruleFlowGroup0.size() );
        assertEquals( 1,
                      agenda.agendaSize() );

        // on firing the last activation the child rule flow groups should
        // activate and thus repopulate the agenda
        agenda.fireNextItem( null );
        workingMemory.executeQueuedActions();
        assertEquals( 0,
                      ruleFlowGroup0.size() );
        assertEquals( 1,
                      ruleFlowGroup1.size() );
        assertEquals( 1,
                      ruleFlowGroup2.size() );
        assertEquals( 2,
                      agenda.agendaSize() );

        // we set the salience higher on rule2, so it sould fire first and empty ruleFlowGroup2
        agenda.fireNextItem( null );
        assertEquals( 1,
                      ruleFlowGroup1.size() );
        assertEquals( 0,
                      ruleFlowGroup2.size() );
        assertEquals( 1,
                      agenda.agendaSize() );

        // executing rule1, which should activate AND-join and thus group 3
        agenda.fireNextItem( null );
        workingMemory.executeQueuedActions();
        assertEquals( 0,
                      ruleFlowGroup0.size() );
        assertEquals( 0,
                      ruleFlowGroup1.size() );
        assertEquals( 0,
                      ruleFlowGroup2.size() );
        assertEquals( 1,
                      ruleFlowGroup3.size() );
        assertEquals( 1,
                      agenda.agendaSize() );

        // executing rule3, and finishing execution
        agenda.fireNextItem( null );
        workingMemory.executeQueuedActions();
        assertEquals( 0,
                      ruleFlowGroup0.size() );
        assertEquals( 0,
                      ruleFlowGroup1.size() );
        assertEquals( 0,
                      ruleFlowGroup2.size() );
        assertEquals( 0,
                      ruleFlowGroup3.size() );
        assertEquals( 0,
                      agenda.agendaSize() );
        assertEquals( ProcessInstance.STATE_COMPLETED,
                      processInstance.getState() );
    }
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    public void testRuleFlowGroup2() {
        final RuleBase ruleBase = RuleBaseFactory.newRuleBase();

        final ReteooWorkingMemory workingMemory = (ReteooWorkingMemory) ruleBase.newStatefulSession();

        final InternalAgenda agenda = (InternalAgenda) workingMemory.getAgenda();

        final List list = new ArrayList();

        // create the consequence
        final Consequence consequence = new Consequence() {
            /**
             *
             */
            private static final long serialVersionUID = 400L;

            public void evaluate(KnowledgeHelper knowledgeHelper,
                                 WorkingMemory workingMemory) {
                list.add( knowledgeHelper.getRule() );
            }
        };

        // create a rule for each rule flow groups
        final Rule rule0 = new Rule( "test-rule0" );
        rule0.setRuleFlowGroup( "rule-flow-group-0" );
        rule0.setConsequence( consequence );

        final RuleTerminalNode node0 = new RuleTerminalNode( 3,
                                                             new MockTupleSource( 2 ),
                                                             rule0,
                                                             rule0.getLhs() );

        final Rule rule1 = new Rule( "test-rule1" );
        rule1.setRuleFlowGroup( "rule-flow-group-1" );
        rule1.setConsequence( consequence );

        final RuleTerminalNode node1 = new RuleTerminalNode( 4,
                                                             new MockTupleSource( 2 ),
                                                             rule1,
                                                             rule1.getLhs() );

        final Rule rule2 = new Rule( "test-rule2" );
        rule2.setRuleFlowGroup( "rule-flow-group-2" );
        rule2.setConsequence( consequence );
        rule2.setSalience( new SalienceInteger( 10 ) );

        final RuleTerminalNode node2 = new RuleTerminalNode( 5,
                                                             new MockTupleSource( 2 ),
                                                             rule2,
                                                             rule2.getLhs() );

        final Rule rule3 = new Rule( "test-rule3" );
        rule3.setRuleFlowGroup( "rule-flow-group-3" );
        rule3.setConsequence( consequence );

        final RuleTerminalNode node3 = new RuleTerminalNode( 6,
                                                             new MockTupleSource( 2 ),
                                                             rule3,
                                                             rule3.getLhs() );

        final PropagationContext context0 = new PropagationContextImpl( 0,
                                                                        PropagationContext.ASSERTION,
                                                                        rule0,
                                                                        null );

        // nodes
        final StartNode start = new StartNodeImpl();
        final RuleSetNode ruleSet0 = new RuleSetNodeImpl();
        ruleSet0.setRuleFlowGroup( "rule-flow-group-0" );
        final RuleSetNode ruleSet1 = new RuleSetNodeImpl();
        ruleSet1.setRuleFlowGroup( "rule-flow-group-1" );
        final RuleSetNode ruleSet2 = new RuleSetNodeImpl();
        ruleSet2.setRuleFlowGroup( "rule-flow-group-2" );
        final RuleSetNode ruleSet3 = new RuleSetNodeImpl();
        ruleSet3.setRuleFlowGroup( "rule-flow-group-3" );
        final Split split = new SplitImpl();
        split.setType( Split.TYPE_XOR );
        final Join join = new JoinImpl();
        join.setType( Join.TYPE_XOR );
        final EndNode end = new EndNodeImpl();
        // connections
        new ConnectionImpl( start,
                        ruleSet0,
                        Connection.TYPE_NORMAL );
        new ConnectionImpl( ruleSet0,
                        split,
                        Connection.TYPE_NORMAL );
        Connection out1 = new ConnectionImpl( split,
                        ruleSet1,
                        Connection.TYPE_NORMAL );
        Connection out2 = new ConnectionImpl( split,
                        ruleSet2,
                        Connection.TYPE_NORMAL );
        new ConnectionImpl( ruleSet1,
                        join,
                        Connection.TYPE_NORMAL );
        new ConnectionImpl( ruleSet2,
                        join,
                        Connection.TYPE_NORMAL );
        new ConnectionImpl( join,
                        ruleSet3,
                        Connection.TYPE_NORMAL );
        new ConnectionImpl( ruleSet3,
                        end,
                        Connection.TYPE_NORMAL );
        Constraint constraint1 = new org.drools.ruleflow.core.impl.ConstraintImpl();
        constraint1.setPriority(1);
        split.setConstraint(out1, constraint1);
        Constraint constraint2 = new org.drools.ruleflow.core.impl.ConstraintImpl();
        constraint2.setPriority(2);
        split.setConstraint(out2, constraint2);

        // process
        final RuleFlowProcess process = new RuleFlowProcessImpl();
        process.setId( "1" );
        process.addNode( start );
        process.addNode( ruleSet0 );
        process.addNode( ruleSet1 );
        process.addNode( ruleSet2 );
        process.addNode( ruleSet3 );
        process.addNode( split );
        process.addNode( join );
        process.addNode( end );

        // rules for split
        final Rule splitRule1 = new Rule( "RuleFlow-1-" + split.getId() + "-" + ruleSet1.getId());
        splitRule1.setRuleFlowGroup( "DROOLS_SYSTEM" );
        splitRule1.setConsequence( consequence );

        final RuleTerminalNode splitNode1 = new RuleTerminalNode( 7,
                                                                 new MockTupleSource( 2 ),
                                                                 splitRule1,
                                                                 splitRule1.getLhs() );

        final Rule splitRule2 = new Rule( "RuleFlow-1-" + split.getId() + "-" + ruleSet2.getId());
        splitRule2.setRuleFlowGroup( "DROOLS_SYSTEM" );
        splitRule2.setConsequence( consequence );

        final RuleTerminalNode splitNode2 = new RuleTerminalNode( 8,
                                                                 new MockTupleSource( 2 ),
                                                                 splitRule2,
                                                                 splitRule2.getLhs() );

        // proces instance
        final RuleFlowProcessInstance processInstance = new RuleFlowProcessInstanceImpl();
        processInstance.setWorkingMemory( workingMemory );
        processInstance.setProcess( process );
        assertEquals( ProcessInstance.STATE_PENDING,
                      processInstance.getState() );

        final RuleFlowGroupImpl ruleFlowGroup0 = (RuleFlowGroupImpl) agenda.getRuleFlowGroup( "rule-flow-group-0" );
        final RuleFlowGroupImpl ruleFlowGroup1 = (RuleFlowGroupImpl) agenda.getRuleFlowGroup( "rule-flow-group-1" );
        final RuleFlowGroupImpl ruleFlowGroup2 = (RuleFlowGroupImpl) agenda.getRuleFlowGroup( "rule-flow-group-2" );
        final RuleFlowGroupImpl ruleFlowGroup3 = (RuleFlowGroupImpl) agenda.getRuleFlowGroup( "rule-flow-group-3" );

        final ReteTuple tuple0 = new ReteTuple( new DefaultFactHandle( 1,
                                                                       "cheese" ) );
        node0.assertTuple( tuple0,
                           context0,
                           workingMemory );

        final ReteTuple tuple1 = new ReteTuple( new DefaultFactHandle( 1,
                                                                       "cheese" ) );
        node0.assertTuple( tuple1,
                           context0,
                           workingMemory );

        final ReteTuple tuple2 = new ReteTuple( new DefaultFactHandle( 1,
                                                                       "cheese" ) );
        node1.assertTuple( tuple2,
                           context0,
                           workingMemory );

        final ReteTuple tuple3 = new ReteTuple( new DefaultFactHandle( 1,
                                                                       "cheese" ) );
        node2.assertTuple( tuple3,
                           context0,
                           workingMemory );

        final ReteTuple tuple4 = new ReteTuple( new DefaultFactHandle( 1,
                                                                       "cheese" ) );
        node3.assertTuple( tuple4,
                           context0,
                           workingMemory );

        final ReteTuple splitTuple1 = new ReteTuple( new DefaultFactHandle( 1,
                                               "cheese" ) );
    splitNode1.assertTuple( splitTuple1,
                  context0,
                  workingMemory );

        final ReteTuple splitTuple2 = new ReteTuple( new DefaultFactHandle( 1,
                                             "cheese" ) );
      splitNode2.assertTuple( splitTuple2,
                  context0,
                workingMemory );

        final RuleFlowGroupImpl systemRuleFlowGroup = (RuleFlowGroupImpl) agenda.getRuleFlowGroup( "DROOLS_SYSTEM" );
       
       

        // RuleFlowGroups should be populated, but the agenda shouldn't
        assertEquals( 2,
                      ruleFlowGroup0.size() );
        assertEquals( 1,
                      ruleFlowGroup1.size() );
        assertEquals( 1,
                      ruleFlowGroup2.size() );
        assertEquals( 1,
                      ruleFlowGroup3.size() );
        assertEquals( 2,
                      systemRuleFlowGroup.size() );
        assertEquals( 0,
                      agenda.agendaSize() );

        // Activate process instance, the activations stay in the group,
        // but should now also be in the Agenda
        processInstance.start();
        assertEquals( ProcessInstance.STATE_ACTIVE,
                      processInstance.getState() );
        assertEquals( 2,
                      ruleFlowGroup0.size() );
        assertEquals( 2,
                      agenda.agendaSize() );

        // As we fire each rule they are removed from both the Agenda and the RuleFlowGroup
        agenda.fireNextItem( null );
        assertEquals( 1,
                      ruleFlowGroup0.size() );
        assertEquals( 1,
                      agenda.agendaSize() );

        // XOR split should activate group1
        agenda.fireNextItem( null );
        workingMemory.executeQueuedActions();
        assertEquals( 0,
                      ruleFlowGroup0.size() );
        assertEquals( 1,
                      ruleFlowGroup1.size() );
        assertEquals( 1,
                      ruleFlowGroup2.size() );
        assertEquals( 1,
                      agenda.agendaSize() );

        // executing group1, XOR join should activate group3
        agenda.fireNextItem( null );
        workingMemory.executeQueuedActions();
        assertEquals( 0,
                      ruleFlowGroup1.size() );
        assertEquals( 1,
                    ruleFlowGroup2.size() );
        assertEquals( 1,
                    ruleFlowGroup3.size() );
        assertEquals( 1,
                      agenda.agendaSize() );

        // executing rule3, and finishing execution
        agenda.fireNextItem( null );
        workingMemory.executeQueuedActions();
        assertEquals( 0,
                      ruleFlowGroup0.size() );
        assertEquals( 0,
                      ruleFlowGroup1.size() );
        assertEquals( 1,
                      ruleFlowGroup2.size() );
        assertEquals( 0,
                      ruleFlowGroup3.size() );
        assertEquals( 0,
                      agenda.agendaSize() );
        assertEquals( ProcessInstance.STATE_COMPLETED,
                      processInstance.getState() );
    }
View Full Code Here
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    public void testRuleFlowGroup() {
        final RuleBase ruleBase = RuleBaseFactory.newRuleBase();

        final ReteooWorkingMemory workingMemory = (ReteooWorkingMemory) ruleBase.newStatefulSession();

        final InternalAgenda agenda = (InternalAgenda) workingMemory.getAgenda();

        final List list = new ArrayList();

        // create the consequence
        final Consequence consequence = new Consequence() {
            /**
             *
             */
            private static final long serialVersionUID = 400L;

            public void evaluate(KnowledgeHelper knowledgeHelper,
                                 WorkingMemory workingMemory) {
                list.add( knowledgeHelper.getRule() );
            }
        };

        // create a rule for each rule flow groups
        final Rule rule0 = new Rule( "test-rule0" );
        rule0.setRuleFlowGroup( "rule-flow-group-0" );
        rule0.setConsequence( consequence );

        final RuleTerminalNode node0 = new RuleTerminalNode( 3,
                                                             new MockTupleSource( 2 ),
                                                             rule0,
                                                             rule0.getLhs() );

        final Rule rule1 = new Rule( "test-rule1" );
        rule1.setRuleFlowGroup( "rule-flow-group-1" );
        rule1.setConsequence( consequence );

        final RuleTerminalNode node1 = new RuleTerminalNode( 4,
                                                             new MockTupleSource( 2 ),
                                                             rule1,
                                                             rule1.getLhs() );

        final Rule rule2 = new Rule( "test-rule2" );
        rule2.setRuleFlowGroup( "rule-flow-group-2" );
        rule2.setConsequence( consequence );
        rule2.setSalience( new SalienceInteger( 10 ) );

        final RuleTerminalNode node2 = new RuleTerminalNode( 5,
                                                             new MockTupleSource( 2 ),
                                                             rule2,
                                                             rule2.getLhs() );

        final PropagationContext context0 = new PropagationContextImpl( 0,
                                                                        PropagationContext.ASSERTION,
                                                                        rule0,
                                                                        null );

        final RuleFlowGroup ruleFlowGroup0 = agenda.getRuleFlowGroup( "rule-flow-group-0" );
        final RuleFlowGroup ruleFlowGroup1 = agenda.getRuleFlowGroup( "rule-flow-group-1" );
        final RuleFlowGroup ruleFlowGroup2 = agenda.getRuleFlowGroup( "rule-flow-group-2" );

        final ReteTuple tuple0 = new ReteTuple( new DefaultFactHandle( 1,
                                                                       "cheese" ) );
        node0.assertTuple( tuple0,
                           context0,
                           workingMemory );

        final ReteTuple tuple1 = new ReteTuple( new DefaultFactHandle( 1,
                                                                       "cheese" ) );
        node0.assertTuple( tuple1,
                           context0,
                           workingMemory );

        final ReteTuple tuple2 = new ReteTuple( new DefaultFactHandle( 1,
                                                                       "cheese" ) );
        node1.assertTuple( tuple2,
                           context0,
                           workingMemory );

        final ReteTuple tuple3 = new ReteTuple( new DefaultFactHandle( 1,
                                                                       "cheese" ) );
        node2.assertTuple( tuple3,
                           context0,
                           workingMemory );

        // RuleFlowGroups should be populated, but the agenda shouldn't be
        assertEquals( 2,
                      ruleFlowGroup0.size() );
        assertEquals( 1,
                      ruleFlowGroup1.size() );
        assertEquals( 1,
                      ruleFlowGroup2.size() );
        assertEquals( 0,
                      agenda.agendaSize() );

        // Activate the RuleFlowGroup, the nodes stay in the group, but should now also be in the Agenda
        agenda.activateRuleFlowGroup( "rule-flow-group-0" );
        assertEquals( 2,
                      ruleFlowGroup0.size() );
        assertEquals( 2,
                      agenda.agendaSize() );

        // As we fire each rule they are removed from both the Agenda and the RuleFlowGroup
        agenda.fireNextItem( null );
        assertEquals( 1,
                      ruleFlowGroup0.size() );
        assertEquals( 1,
                      agenda.agendaSize() );

        // After firing all activations of RuleFlowGroup 0, the agenda is empty
        agenda.fireNextItem( null );
        assertEquals( 0,
                      ruleFlowGroup0.size() );
        assertEquals( 0,
                      agenda.agendaSize() );

        // Now we activate two RuleFlowGroups together
        // All their activations should be added to the agenda.
        agenda.activateRuleFlowGroup( "rule-flow-group-1" );
        agenda.activateRuleFlowGroup( "rule-flow-group-2" );
        assertEquals( 1,
                      ruleFlowGroup1.size() );
        assertEquals( 1,
                      ruleFlowGroup2.size() );
        assertEquals( 2,
                      agenda.agendaSize() );

        // we set the salience higher on rule2, so it sould fire first and empty ruleFlowGroup2
        agenda.fireNextItem( null );
        assertEquals( 1,
                      ruleFlowGroup1.size() );
        assertEquals( 0,
                      ruleFlowGroup2.size() );
        assertEquals( 1,
                      agenda.agendaSize() );

        // this is the last activation, so everything should be empty after this
        agenda.fireNextItem( null );
        assertEquals( 0,
                      ruleFlowGroup0.size() );
        assertEquals( 0,
                      ruleFlowGroup1.size() );
        assertEquals( 0,
                      ruleFlowGroup2.size() );
        assertEquals( 0,
                      agenda.agendaSize() );
    }
View Full Code Here
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    public void testRuleFlowGroup1() {
        final RuleBase ruleBase = RuleBaseFactory.newRuleBase();

        final ReteooWorkingMemory workingMemory = (ReteooWorkingMemory) ruleBase.newStatefulSession();

        final InternalAgenda agenda = (InternalAgenda) workingMemory.getAgenda();

        // create rule1
        final Consequence consequence1 = new Consequence() {
            private static final long serialVersionUID = 400L;

            public void evaluate(KnowledgeHelper knowledgeHelper,
                                 WorkingMemory workingMemory) {
                // do nothing
            }
        };

        final Rule rule1 = new Rule( "test-rule1" );
        rule1.setRuleFlowGroup( "rule-flow-group-0" );
        rule1.setConsequence( consequence1 );

        final RuleTerminalNode node1 = new RuleTerminalNode( 4,
                                                             new MockTupleSource( 2 ),
                                                             rule1,
                                                             rule1.getLhs() );

        // create context
        final PropagationContext context0 = new PropagationContextImpl( 0,
                                                                        PropagationContext.ASSERTION,
                                                                        rule1,
                                                                        null );

        // create rule0
        final Consequence consequence0 = new Consequence() {
            private static final long serialVersionUID = 400L;

            public void evaluate(KnowledgeHelper knowledgeHelper,
                                 WorkingMemory w) {
                // activate rule1
                final ReteTuple tuple1 = new ReteTuple( new DefaultFactHandle( 1,
                                                                               "cheese" ) );
                node1.assertTuple( tuple1,
                                   context0,
                                   workingMemory );
            }
        };

        final Rule rule0 = new Rule( "test-rule0" );
        rule0.setRuleFlowGroup( "rule-flow-group-0" );
        rule0.setConsequence( consequence0 );

        final RuleTerminalNode node0 = new RuleTerminalNode( 3,
                                                             new MockTupleSource( 2 ),
                                                             rule0,
                                                             rule0.getLhs() );

        final RuleFlowGroup ruleFlowGroup0 = agenda.getRuleFlowGroup( "rule-flow-group-0" );

        // Create one activation for rule0 only
        final ReteTuple tuple0 = new ReteTuple( new DefaultFactHandle( 1,
                                                                       "cheese" ) );
        node0.assertTuple( tuple0,
                           context0,
                           workingMemory );

        // RuleFlowGroup should be populated, but the agenda shouldn't be
        assertEquals( 1,
                      ruleFlowGroup0.size() );
        assertEquals( 0,
                      agenda.agendaSize() );

        // Activate the RuleFlowGroup, the activation stays in the group, but should now also be in the Agenda
        agenda.activateRuleFlowGroup( "rule-flow-group-0" );
        assertEquals( 1,
                      ruleFlowGroup0.size() );
        assertEquals( 1,
                      agenda.agendaSize() );

        // As we fire the rule, an new activation is created for rule1, and it should be added to group AND the agenda.
        agenda.fireNextItem( null );
        assertEquals( 1,
                      ruleFlowGroup0.size() );
        assertEquals( 1,
                      agenda.agendaSize() );

        // After firing all activations of RuleFlowGroup 0, the agenda is empty
        agenda.fireNextItem( null );
        assertEquals( 0,
                      ruleFlowGroup0.size() );
        assertEquals( 0,
                      agenda.agendaSize() );
    }
View Full Code Here
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    public void testRuleFlowGroup2() {
        final RuleBase ruleBase = RuleBaseFactory.newRuleBase();

        final ReteooWorkingMemory workingMemory = (ReteooWorkingMemory) ruleBase.newStatefulSession();

        final InternalAgenda agenda = (InternalAgenda) workingMemory.getAgenda();

        // create rule1
        final Consequence consequence1 = new Consequence() {
            private static final long serialVersionUID = 400L;

            public void evaluate(KnowledgeHelper knowledgeHelper,
                                 WorkingMemory workingMemory) {
                // do nothing
            }
        };

        final Rule rule1 = new Rule( "test-rule1" );
        rule1.setRuleFlowGroup( "rule-flow-group-0" );
        rule1.setConsequence( consequence1 );

        final RuleTerminalNode node1 = new RuleTerminalNode( 4,
                                                             new MockTupleSource( 2 ),
                                                             rule1,
                                                             rule1.getLhs() );

        // create context
        final PropagationContext context0 = new PropagationContextImpl( 0,
                                                                        PropagationContext.ASSERTION,
                                                                        rule1,
                                                                        null );

        final ReteTuple tuple1 = new ReteTuple( new DefaultFactHandle( 1,
                                                                       "cheese" ) );

        // create rule0
        final Consequence consequence0 = new Consequence() {
            private static final long serialVersionUID = 400L;

            public void evaluate(KnowledgeHelper knowledgeHelper,
                                 WorkingMemory w) {
                // deactivate rule1
                node1.retractTuple( tuple1,
                                    context0,
                                    workingMemory );
            }
        };

        final Rule rule0 = new Rule( "test-rule0" );
        rule0.setRuleFlowGroup( "rule-flow-group-0" );
        rule0.setConsequence( consequence0 );
        rule0.setSalience( new SalienceInteger( 10  ) );

        final RuleTerminalNode node0 = new RuleTerminalNode( 3,
                                                             new MockTupleSource( 2 ),
                                                             rule0,
                                                             rule0.getLhs() );

        final RuleFlowGroup ruleFlowGroup0 = agenda.getRuleFlowGroup( "rule-flow-group-0" );

        // Create an activation for both rules
        final ReteTuple tuple0 = new ReteTuple( new DefaultFactHandle( 1,
                                                                       "cheese" ) );
        node0.assertTuple( tuple0,
                           context0,
                           workingMemory );

        node1.assertTuple( tuple1,
                           context0,
                           workingMemory );

        // RuleFlowGroup should be populated, but the agenda shouldn't be
        assertEquals( 2,
                      ruleFlowGroup0.size() );
        assertEquals( 0,
                      agenda.agendaSize() );

        // Activate the RuleFlowGroup, the activations stay in the group, but should now also be in the Agenda
        agenda.activateRuleFlowGroup( "rule-flow-group-0" );
        assertEquals( 2,
                      ruleFlowGroup0.size() );
        assertEquals( 2,
                      agenda.agendaSize() );

        // As we fire the rule, rule0 should execute first, as it has higher salience.
        // Rule0 should deactivate rule1 as well, so the everything should be empty
        agenda.fireNextItem( null );
        assertEquals( 0,
                      ruleFlowGroup0.size() );
        assertEquals( 0,
                      agenda.agendaSize() );

    }
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Related Classes of org.drools.common.InternalAgenda

  • org.drools.reteoo.AgendaTest
  • org.drools.reteoo.LogicalAssertionTest
  • org.drools.reteoo.RuleFlowGroupTest
  • org.drools.reteoo.RuleTerminalNode
  • org.drools.workflow.instance.impl.RuleConstraintEvaluator
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