Examples of org.drools.core.spi.Tuple

org.drools.core.spi.Tuple
Partial matches are propagated through the Rete network as Tuples. Each Tuple Is able to return the FactHandleImpl members of the partial match for the requested pattern. The pattern refers to the index position of the FactHandleImpl in the underlying implementation. @see FactHandle;

     * @param activation The activation from which the declarations should be extracted
     * @return A String represetation of the declarations of the activation.
     */
    private String extractDeclarations(final Activation activation,  final WorkingMemory workingMemory) {
        final StringBuilder result = new StringBuilder();
        final Tuple tuple = activation.getTuple();
        final Map<?, ?> declarations = activation.getSubRule().getOuterDeclarations();
        for ( Iterator<?> it = declarations.values().iterator(); it.hasNext(); ) {
            final Declaration declaration = (Declaration) it.next();
            final InternalFactHandle handle = tuple.get( declaration );
            if ( handle != null ) {
                if ( handle.getId() == -1 ) {
                    // This handle is now invalid, probably due to an fact retraction
                    continue;
                }

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     * @return A unique id for the activation
     */
    private static String getActivationId(final Activation activation) {
        final StringBuilder result = new StringBuilder( activation.getRule().getName() );
        result.append( " [" );
        final Tuple tuple = activation.getTuple();
        final FactHandle[] handles = tuple.toFactHandles();
        for ( int i = 0; i < handles.length; i++ ) {
            result.append( ((InternalFactHandle) handles[i]).getId() );
            if ( i < handles.length - 1 ) {
                result.append( ", " );
            }

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                              workingMemory );


        final List asserted = sink.getAsserted();
        assertLength( 1,
                      asserted );
        final Tuple tuple0 = (Tuple) ((Object[]) asserted.get( 0 ))[0];
        assertSame( string1,
                    workingMemory.getObject( tuple0.get( 0 ) ) );


    }

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            public void evaluate(KnowledgeHelper drools,
                                 WorkingMemory workingMemory) throws ConsequenceException {
                try {
                    Rule rule = drools.getRule();
                    Tuple tuple = drools.getTuple();


                    Guest guest = (Guest) drools.get( guestDeclaration );
                    Context context = (Context) drools.get( contextDeclaration );
                    Count count = (Count) drools.get( countDeclaration );


                    String guestName = guest.getName();


                    Seating seating = new Seating( count.getValue(),
                                                   0,
                                                   true,
                                                   1,
                                                   guestName,
                                                   1,
                                                   guestName );


                    drools.insert( seating );


                    Path path = new Path( count.getValue(),
                                          1,
                                          guestName );


                    drools.insert( path );


                    count.setValue( count.getValue() );
                    drools.update( tuple.get( countDeclaration ),
                                   count );


                    context.setState( Context.ASSIGN_SEATS );
                    //                    drools.update( tuple.get( contextDeclaration ),
                    //                            context );


                    drools.update( tuple.get( contextDeclaration ) );


                    //                    System.err.println( "assign first seat :  " + seating + " : " + path );


                } catch ( Exception e ) {
                    e.printStackTrace();

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                try {
                    //                    MemoryVisitor visitor = new MemoryVisitor( ( InternalWorkingMemory ) workingMemory );
                    //                    visitor.visit( workingMemory.getRuleBase() );


                    Rule rule = drools.getRule();
                    Tuple tuple = drools.getTuple();


                    Context context = (Context) drools.get( contextDeclaration );
                    Count count = (Count) drools.get( countDeclaration );
                    int seatId = seatingIdDeclaration.getExtractor().getIntValue( (InternalWorkingMemory) workingMemory,
                                                                                  tuple.get( seatingIdDeclaration ).getObject() );
                    int seatingRightSeat = seatingRightSeatDeclaration.getExtractor().getIntValue( (InternalWorkingMemory) workingMemory,
                                                                                                   tuple.get( seatingRightSeatDeclaration ).getObject() );


                    String leftGuestName = (String) drools.get( leftGuestNameDeclaration );
                    String rightGuestName = (String) drools.get( seatingRightGuestNameDeclaration );
                    Hobby rightGuestHobby = (Hobby) drools.get( rightGuestHobbyDeclaration );


                    Seating seating = new Seating( count.getValue(),
                                                   seatId,
                                                   false,
                                                   seatingRightSeat,
                                                   rightGuestName,
                                                   seatingRightSeat + 1,
                                                   leftGuestName );
                    drools.insert( seating );


                    Path path = new Path( count.getValue(),
                                          seatingRightSeat + 1,
                                          leftGuestName );


                    drools.insert( path );


                    Chosen chosen = new Chosen( seatId,
                                                leftGuestName,
                                                rightGuestHobby );


                    drools.insert( chosen );
                    count.setValue( count.getValue() + 1 );


                    //                    if ( count.getValue() == 5 ) {
                    //                        drools.retractObject( tuple.getFactHandleForDeclaration( countDeclaration ) );
                    //                    } else {
                    //                        drools.update( tuple.getFactHandleForDeclaration( countDeclaration ),
                    //                                             count );
                    //                    }


                    drools.update( tuple.get( countDeclaration ),
                                   count );


                    context.setState( Context.MAKE_PATH );
                    drools.update( tuple.get( contextDeclaration ),
                                   context );


                    System.err.println( "find seating : " + seating + " : " + path + " : " + chosen );


                } catch ( Exception e ) {

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            public void evaluate(KnowledgeHelper drools,
                                 WorkingMemory workingMemory) throws ConsequenceException {
                try {
                    Rule rule = drools.getRule();
                    Tuple tuple = drools.getTuple();


                    int id = seatingIdDeclaration.getExtractor().getIntValue( (InternalWorkingMemory) workingMemory,
                                                                              tuple.get( seatingIdDeclaration ).getObject() );
                    int seat = pathSeatDeclaration.getExtractor().getIntValue( (InternalWorkingMemory) workingMemory,
                                                                               tuple.get( pathSeatDeclaration ).getObject() );
                    String guestName = (String) drools.get( pathGuestNameDeclaration );


                    Path path = new Path( id,
                                          seat,
                                          guestName );

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            public void evaluate(KnowledgeHelper drools,
                                 WorkingMemory workingMemory) throws ConsequenceException {
                try {
                    Rule rule = drools.getRule();
                    Tuple tuple = drools.getTuple();


                    Context context = (Context) drools.get( contextDeclaration );
                    Seating seating = (Seating) drools.get( seatingDeclaration );


                    seating.setPathDone( true );


                    //                    if ( seating.getId() == 6 ) {
                    //                        System.err.println( "pause" );
                    //                    }
                    drools.update( tuple.get( seatingDeclaration ) );


                    context.setState( Context.CHECK_DONE );
                    drools.update( tuple.get( contextDeclaration ),
                                   context );
                    //System.err.println( "path done" + seating );
                } catch ( Exception e ) {
                    e.printStackTrace();
                    throw new ConsequenceException( e );

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            public void evaluate(KnowledgeHelper drools,
                                 WorkingMemory workingMemory) throws ConsequenceException {
                try {
                    Rule rule = drools.getRule();
                    Tuple tuple = drools.getTuple();


                    Context context = (Context) drools.get( contextDeclaration );
                    context.setState( Context.PRINT_RESULTS );


                    drools.update( tuple.get( contextDeclaration ),
                                   context );


                    //                    System.err.println( "We Are Done!!!" );
                } catch ( Exception e ) {
                    throw new ConsequenceException( e );

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            public void evaluate(KnowledgeHelper drools,
                                 WorkingMemory workingMemory) throws ConsequenceException {
                try {
                    Rule rule = drools.getRule();
                    Tuple tuple = drools.getTuple();


                    Context context = (Context) drools.get( contextDeclaration );
                    context.setState( Context.ASSIGN_SEATS );


                    drools.update( tuple.get( contextDeclaration ),
                                   context );


                    //System.err.println( "continue processing" );
                } catch ( Exception e ) {
                    e.printStackTrace();

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     * @param activation The activation from which the declarations should be extracted
     * @return A String represetation of the declarations of the activation.
     */
    private String extractDeclarations(final Activation activation,  final WorkingMemory workingMemory) {
        final StringBuilder result = new StringBuilder();
        final Tuple tuple = activation.getTuple();
        final Map<?, ?> declarations = activation.getSubRule().getOuterDeclarations();
        for ( Iterator<?> it = declarations.values().iterator(); it.hasNext(); ) {
            final Declaration declaration = (Declaration) it.next();
            final FactHandle handle = tuple.get( declaration );
            if ( handle instanceof InternalFactHandle ) {
                final InternalFactHandle handleImpl = (InternalFactHandle) handle;
                if ( handleImpl.getId() == -1 ) {
                    // This handle is now invalid, probably due to an fact retraction
                    continue;

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