Examples of TruthMaintenanceSystem

org.drools.common.TruthMaintenanceSystem
The Truth Maintenance System is responsible for tracking two things. Firstly It maintains a Map to track the classes with the same Equality, using the EqualityKey. The EqualityKey has an internal datastructure which references all the handles which are equal. Secondly It maintains another map tracking the justificiations for logically asserted facts.
org.drools.core.common.TruthMaintenanceSystem
The Truth Maintenance System is responsible for tracking two things. Firstly It maintains a Map to track the classes with the same Equality, using the EqualityKey. The EqualityKey has an internal datastructure which references all the handles which are equal. Secondly It maintains another map tracking the justificiations for logically asserted facts.

Examples of org.drools.common.TruthMaintenanceSystem

    /*
     * @see JBRULES-356
     */
    public void testBasicWorkingMemoryActions() {
        final ReteooWorkingMemory workingMemory = (ReteooWorkingMemory) RuleBaseFactory.newRuleBase().newStatefulSession();
        final TruthMaintenanceSystem tms = workingMemory.getTruthMaintenanceSystem();
        final String string = "test";
        FactHandle fd = workingMemory.insert( string );


        assertEquals( 1,
                      tms.getAssertMap().size() );
        EqualityKey key = tms.get( string );
        assertSame( fd,
                    key.getFactHandle() );
        assertNull( key.getOtherFactHandle() );


        workingMemory.update( fd,
                                    string );


        assertEquals( 1,
                      tms.getAssertMap().size() );
        key = tms.get( string );
        assertSame( fd,
                    key.getFactHandle() );
        assertNull( key.getOtherFactHandle() );


        workingMemory.retract( fd );


        assertEquals( 0,
                      tms.getAssertMap().size() );
        key = tms.get( string );
        assertNull( key );


        fd = workingMemory.insert( string );


        assertEquals( 1,
                      tms.getAssertMap().size() );


        assertEquals( 1,
                      tms.getAssertMap().size() );
        key = tms.get( string );
        assertSame( fd,
                    key.getFactHandle() );
        assertNull( key.getOtherFactHandle() );
    }

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Examples of org.drools.common.TruthMaintenanceSystem


        workingMemory.retract( h );
        assertEquals( 0,
                      IteratorToList.convert( workingMemory.iterateObjects() ).size() );


        TruthMaintenanceSystem tms = ((InternalWorkingMemory) workingMemory).getTruthMaintenanceSystem();


        final java.lang.reflect.Field field = tms.getClass().getDeclaredField( "assertMap" );
        field.setAccessible( true );
        final ObjectHashMap m = (ObjectHashMap) field.get( tms );
        field.setAccessible( false );
        assertEquals( "assertMap should be empty",
                      0,

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Examples of org.drools.common.TruthMaintenanceSystem


        workingMemory.retract( h );
        assertEquals( 0,
                      IteratorToList.convert( workingMemory.iterateObjects() ).size() );


        TruthMaintenanceSystem tms = ((InternalWorkingMemory) workingMemory).getTruthMaintenanceSystem();


        final java.lang.reflect.Field field = tms.getClass().getDeclaredField( "assertMap" );
        field.setAccessible( true );
        final ObjectHashMap m = (ObjectHashMap) field.get( tms );
        field.setAccessible( false );
        assertEquals( "assertMap should be empty",
                      0,

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Examples of org.drools.common.TruthMaintenanceSystem

     * @see JBRULES-356
     */
    @Test
    public void testBasicWorkingMemoryActions() {
        final ReteooWorkingMemory workingMemory = (ReteooWorkingMemory) RuleBaseFactory.newRuleBase().newStatefulSession();
        final TruthMaintenanceSystem tms = workingMemory.getTruthMaintenanceSystem();
        final String string = "test";
        
        workingMemory.insert( string );
        
        FactHandle fd = workingMemory.insertLogical( string );


        assertEquals( 1,
                      tms.getAssertMap().size() );
        
        EqualityKey key = tms.get( string );
        assertSame( fd,
                    key.getFactHandle() );
        assertNull( key.getOtherFactHandle() );


        workingMemory.update( fd,
                                    string );


        assertEquals( 1,
                      tms.getAssertMap().size() );
        key = tms.get( string );
        assertSame( fd,
                    key.getFactHandle() );
        assertNull( key.getOtherFactHandle() );


        workingMemory.retract( fd );


        assertEquals( 0,
                      tms.getAssertMap().size() );
        key = tms.get( string );
        assertNull( key );


        fd = workingMemory.insert( string );


        assertEquals( 1,
                      tms.getAssertMap().size() );


        assertEquals( 1,
                      tms.getAssertMap().size() );
        key = tms.get( string );
        assertSame( fd,
                    key.getFactHandle() );
        assertNull( key.getOtherFactHandle() );
    }

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Examples of org.drools.common.TruthMaintenanceSystem

    }


    public static void readTruthMaintenanceSystem(MarshallerReaderContext context) throws IOException {
        ObjectInputStream stream = context.stream;


        TruthMaintenanceSystem tms = context.wm.getTruthMaintenanceSystem();
        while ( stream.readShort() == PersisterEnums.EQUALITY_KEY ) {
            int status = stream.readInt();
            int factHandleId = stream.readInt();
            InternalFactHandle handle = (InternalFactHandle) context.handles.get( factHandleId );
            EqualityKey key = new EqualityKey( handle,
                                               status );
            handle.setEqualityKey( key );
            while ( stream.readShort() == PersisterEnums.FACT_HANDLE ) {
                factHandleId = stream.readInt();
                handle = (InternalFactHandle) context.handles.get( factHandleId );
                key.addFactHandle( handle );
                handle.setEqualityKey( key );
            }
            tms.put( key );
        }
    }

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Examples of org.drools.common.TruthMaintenanceSystem

                InternalRuleFlowGroup rfg = (InternalRuleFlowGroup) ((DefaultAgenda) wm.getAgenda()).getRuleFlowGroup( rule.getRuleFlowGroup() );
                rfg.addActivation( activation );
            }
        }


        TruthMaintenanceSystem tms = context.wm.getTruthMaintenanceSystem();
        while ( stream.readShort() == PersisterEnums.LOGICAL_DEPENDENCY ) {
            int factHandleId = stream.readInt();
            InternalFactHandle handle = (InternalFactHandle) context.handles.get( factHandleId );
            tms.addLogicalDependency( handle,
                                      activation,
                                      pc,
                                      rule );
        }

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Examples of org.drools.common.TruthMaintenanceSystem

    }


    public static void readTruthMaintenanceSystem( MarshallerReaderContext context, 
                                                   RuleData _session ) throws IOException {


        TruthMaintenanceSystem tms = context.wm.getTruthMaintenanceSystem();
        ProtobufMessages.TruthMaintenanceSystem _tms = _session.getTms();
        
        for( ProtobufMessages.EqualityKey _key : _tms.getKeyList() ) {
            InternalFactHandle handle = (InternalFactHandle) context.handles.get( _key.getHandleId() );


            // ObjectTypeConf state is not marshalled, so it needs to be re-determined
            ObjectTypeConf typeConf = context.wm.getObjectTypeConfigurationRegistry().getObjectTypeConf( ((NamedEntryPoint)handle.getEntryPoint()).getEntryPoint(),
                                                                                                         handle.getObject() );
            if (!typeConf.isTMSEnabled()) {
                typeConf.enableTMS();
            }


            EqualityKey key = new EqualityKey( handle,
                                               _key.getStatus() );
            handle.setEqualityKey( key );
            for( Integer factHandleId : _key.getOtherHandleList() ) {
                handle = (InternalFactHandle) context.handles.get( factHandleId.intValue() );
                key.addFactHandle( handle );
                handle.setEqualityKey( key );
            }
            tms.put( key );
        }
        
        for( ProtobufMessages.Justification _justification : _tms.getJustificationList() ) {
            InternalFactHandle handle = (InternalFactHandle) context.handles.get( _justification.getHandleId() );
            
            for( ProtobufMessages.Activation _activation : _justification.getActivationList() ) {
                Activation activation = (Activation) context.filter.getTuplesCache().get( 
                              PersisterHelper.createActivationKey( _activation.getPackageName(), 
                                                                   _activation.getRuleName(), 
                                                                   _activation.getTuple() ) ).getObject();
                PropagationContext pc = activation.getPropagationContext();
                tms.addLogicalDependency( handle, 
                                          activation, 
                                          pc, 
                                          activation.getRule() );
            }
        }

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Examples of org.drools.common.TruthMaintenanceSystem

    }


    public static void readTruthMaintenanceSystem( MarshallerReaderContext context ) throws IOException {
        ObjectInputStream stream = context.stream;


        TruthMaintenanceSystem tms = context.wm.getTruthMaintenanceSystem();
        while (stream.readShort() == PersisterEnums.EQUALITY_KEY) {
            int status = stream.readInt();
            int factHandleId = stream.readInt();
            InternalFactHandle handle = (InternalFactHandle) context.handles.get( factHandleId );


            // ObjectTypeConf state is not marshalled, so it needs to be re-determined
            ObjectTypeConf typeConf = context.wm.getObjectTypeConfigurationRegistry().getObjectTypeConf( context.wm.getEntryPoint(),
                                                                                                         handle.getObject() );
            if (!typeConf.isTMSEnabled()) {
                typeConf.enableTMS();
            }


            EqualityKey key = new EqualityKey( handle,
                                               status );
            handle.setEqualityKey( key );
            while (stream.readShort() == PersisterEnums.FACT_HANDLE) {
                factHandleId = stream.readInt();
                handle = (InternalFactHandle) context.handles.get( factHandleId );
                key.addFactHandle( handle );
                handle.setEqualityKey( key );
            }
            tms.put( key );
        }
    }

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Examples of org.drools.common.TruthMaintenanceSystem

                InternalRuleFlowGroup rfg = (InternalRuleFlowGroup) ( (DefaultAgenda) wm.getAgenda() ).getRuleFlowGroup( rule.getRuleFlowGroup() );
                rfg.addActivation( activation );
            }
        }


        TruthMaintenanceSystem tms = context.wm.getTruthMaintenanceSystem();
        while (stream.readShort() == PersisterEnums.LOGICAL_DEPENDENCY) {
            int factHandleId = stream.readInt();
            InternalFactHandle handle = (InternalFactHandle) context.handles.get( factHandleId );
            ObjectTypeConf typeConf = context.wm.getObjectTypeConfigurationRegistry().getObjectTypeConf( ((NamedEntryPoint)handle.getEntryPoint()).getEntryPoint(),
                                                                                                         handle.getObject() );            
            tms.addLogicalDependency( handle,
                                      null,
                                      activation,
                                      pc,
                                      rule,
                                      typeConf );

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Examples of org.drools.common.TruthMaintenanceSystem

    }


    public static void readTruthMaintenanceSystem( MarshallerReaderContext context, 
                                                   RuleData _session ) throws IOException {


        TruthMaintenanceSystem tms = context.wm.getTruthMaintenanceSystem();
        ProtobufMessages.TruthMaintenanceSystem _tms = _session.getTms();
        
        for( ProtobufMessages.EqualityKey _key : _tms.getKeyList() ) {
            InternalFactHandle handle = (InternalFactHandle) context.handles.get( _key.getHandleId() );


            // ObjectTypeConf state is not marshalled, so it needs to be re-determined
            ObjectTypeConf typeConf = context.wm.getObjectTypeConfigurationRegistry().getObjectTypeConf( ((NamedEntryPoint)handle.getEntryPoint()).getEntryPoint(),
                                                                                                         handle.getObject() );
            if (!typeConf.isTMSEnabled()) {
                typeConf.enableTMS();
            }


            EqualityKey key = new EqualityKey( handle,
                                               _key.getStatus() );
            handle.setEqualityKey( key );
            for( Integer factHandleId : _key.getOtherHandleList() ) {
                handle = (InternalFactHandle) context.handles.get( factHandleId.intValue() );
                key.addFactHandle( handle );
                handle.setEqualityKey( key );
            }
            tms.put( key );
        }
        
        for( ProtobufMessages.Justification _justification : _tms.getJustificationList() ) {
            InternalFactHandle handle = (InternalFactHandle) context.handles.get( _justification.getHandleId() );
            
            for( ProtobufMessages.Activation _activation : _justification.getActivationList() ) {
                Activation activation = (Activation) context.filter.getTuplesCache().get( 
                              PersisterHelper.createActivationKey( _activation.getPackageName(), 
                                                                   _activation.getRuleName(), 
                                                                   _activation.getTuple() ) ).getObject();
                PropagationContext pc = activation.getPropagationContext();
                ObjectTypeConf typeConf = context.wm.getObjectTypeConfigurationRegistry().getObjectTypeConf( ((NamedEntryPoint)handle.getEntryPoint()).getEntryPoint(),
                                                                                                             handle.getObject() );                
                tms.readLogicalDependency( handle,
                                           null,
                                           activation, 
                                           pc, 
                                           activation.getRule(),
                                           typeConf );

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