Examples with Declaration org.drools.core.rule.Declaration used on opensource projects

Example 41 with Declaration

use of org.drools.core.rule.Declaration in project drools by kiegroup.

the class RuleTerminalNode method setDeclarations.

public void setDeclarations(Map<String, Declaration> decls) {
    if (rule.getSalience() instanceof MVELSalienceExpression) {
        MVELSalienceExpression expr = (MVELSalienceExpression) rule.getSalience();
        Declaration[] declrs = expr.getMVELCompilationUnit().getPreviousDeclarations();
        this.salienceDeclarations = new Declaration[declrs.length];
        int i = 0;
        for (Declaration declr : declrs) {
            this.salienceDeclarations[i++] = decls.get(declr.getIdentifier());
        }
        Arrays.sort(this.salienceDeclarations, SortDeclarations.instance);
    }
    if (rule.getEnabled() instanceof MVELEnabledExpression) {
        MVELEnabledExpression expr = (MVELEnabledExpression) rule.getEnabled();
        Declaration[] declrs = expr.getMVELCompilationUnit().getPreviousDeclarations();
        this.enabledDeclarations = new Declaration[declrs.length];
        int i = 0;
        for (Declaration declr : declrs) {
            this.enabledDeclarations[i++] = decls.get(declr.getIdentifier());
        }
        Arrays.sort(this.enabledDeclarations, SortDeclarations.instance);
    }
    if (rule.getTimer() instanceof BaseTimer) {
        this.timerDeclarations = ((BaseTimer) rule.getTimer()).getTimerDeclarations(decls);
    }
}

Example 42 with Declaration

use of org.drools.core.rule.Declaration in project drools by kiegroup.

the class RuleTerminalNodeLeftTuple method getDeclarationIds.

public List<String> getDeclarationIds() {
    Declaration[] declArray = ((org.drools.core.reteoo.RuleTerminalNode) getTupleSink()).getAllDeclarations();
    List<String> declarations = new ArrayList<String>();
    for (Declaration decl : declArray) {
        declarations.add(decl.getIdentifier());
    }
    return Collections.unmodifiableList(declarations);
}

Example 43 with Declaration

use of org.drools.core.rule.Declaration in project drools by kiegroup.

the class BuildUtils method gatherTemporalRelationships.

private void gatherTemporalRelationships(List<?> constraints, Map<Declaration, Interval> temporal) {
    for (Object obj : constraints) {
        if (obj instanceof IntervalProviderConstraint) {
            IntervalProviderConstraint constr = (IntervalProviderConstraint) obj;
            if (constr.isTemporal()) {
                // if a constraint already exists, calculate the intersection
                Declaration[] decs = constr.getRequiredDeclarations();
                // only calculate relationships to other event patterns
                if (decs.length > 0 && decs[0].isPatternDeclaration() && decs[0].getPattern().getObjectType().isEvent()) {
                    Declaration target = decs[0];
                    Interval interval = temporal.get(target);
                    if (interval == null) {
                        interval = constr.getInterval();
                        temporal.put(target, interval);
                    } else {
                        interval.intersect(constr.getInterval());
                    }
                }
            }
        } else if (obj instanceof AbstractCompositeConstraint) {
            gatherTemporalRelationships(Arrays.asList(((AbstractCompositeConstraint) obj).getBetaConstraints()), temporal);
        }
    }
}

Example 44 with Declaration

use of org.drools.core.rule.Declaration in project drools by kiegroup.

the class BuildUtils method calculateTemporalDistance.

/**
 * Calculates the temporal distance between all event patterns in the given
 * subrule.
 *
 * @param groupElement the root element of a subrule being added to the rulebase
 */
public TemporalDependencyMatrix calculateTemporalDistance(GroupElement groupElement) {
    // find the events
    List<Pattern> events = new ArrayList<Pattern>();
    selectAllEventPatterns(events, groupElement);
    final int size = events.size();
    if (size >= 1) {
        // create the matrix
        Interval[][] source = new Interval[size][];
        for (int row = 0; row < size; row++) {
            source[row] = new Interval[size];
            for (int col = 0; col < size; col++) {
                if (row == col) {
                    source[row][col] = new Interval(0, 0);
                } else {
                    source[row][col] = new Interval(Interval.MIN, Interval.MAX);
                }
            }
        }
        Interval[][] result;
        if (size > 1) {
            List<Declaration> declarations = new ArrayList<Declaration>();
            int eventIndex = 0;
            // populate the matrix
            for (Pattern event : events) {
                // references to other events are always backward references, so we can build the list as we go
                declarations.add(event.getDeclaration());
                Map<Declaration, Interval> temporal = new HashMap<Declaration, Interval>();
                gatherTemporalRelationships(event.getConstraints(), temporal);
                // intersects default values with the actual constrained intervals
                for (Map.Entry<Declaration, Interval> entry : temporal.entrySet()) {
                    int targetIndex = declarations.indexOf(entry.getKey());
                    Interval interval = entry.getValue();
                    source[targetIndex][eventIndex].intersect(interval);
                    Interval reverse = new Interval(interval.getUpperBound() == Long.MAX_VALUE ? Long.MIN_VALUE : -interval.getUpperBound(), interval.getLowerBound() == Long.MIN_VALUE ? Long.MAX_VALUE : -interval.getLowerBound());
                    source[eventIndex][targetIndex].intersect(reverse);
                }
                eventIndex++;
            }
            result = TimeUtils.calculateTemporalDistance(source);
        } else {
            result = source;
        }
        return new TemporalDependencyMatrix(result, events);
    }
    return null;
}

Example 45 with Declaration

use of org.drools.core.rule.Declaration in project drools by kiegroup.

the class ExpressionIntervalTimer method createTrigger.

public Trigger createTrigger(long timestamp, Tuple leftTuple, DefaultJobHandle jh, String[] calendarNames, Calendars calendars, Declaration[][] declrs, InternalWorkingMemory wm) {
    long timeSinceLastFire = 0;
    Declaration[] delayDeclarations = declrs[0];
    Declaration[] periodDeclarations = declrs[1];
    Declaration[] startDeclarations = declrs[2];
    Declaration[] endDeclarations = declrs[3];
    Date lastFireTime = null;
    Date createdTime = null;
    long newDelay = 0;
    if (jh != null) {
        IntervalTrigger preTrig = (IntervalTrigger) jh.getTimerJobInstance().getTrigger();
        lastFireTime = preTrig.getLastFireTime();
        createdTime = preTrig.getCreatedTime();
        if (lastFireTime != null) {
            // it is already fired calculate the new delay using the period instead of the delay
            newDelay = evalTimeExpression(this.period, leftTuple, delayDeclarations, wm) - timestamp + lastFireTime.getTime();
        } else {
            newDelay = evalTimeExpression(this.delay, leftTuple, delayDeclarations, wm) - timestamp + createdTime.getTime();
        }
    } else {
        newDelay = evalTimeExpression(this.delay, leftTuple, delayDeclarations, wm);
    }
    if (newDelay < 0) {
        newDelay = 0;
    }
    return new IntervalTrigger(timestamp, evalDateExpression(this.startTime, leftTuple, startDeclarations, wm), evalDateExpression(this.endTime, leftTuple, startDeclarations, wm), this.repeatLimit, newDelay, period != null ? evalTimeExpression(this.period, leftTuple, periodDeclarations, wm) : 0, calendarNames, calendars, createdTime, lastFireTime);
}