Examples with DroolsError org.drools.compiler.compiler.DroolsError used on opensource projects

Example 1 with DroolsError

use of org.drools.compiler.compiler.DroolsError in project drools by kiegroup.

the class KnowledgeBuilderImpl method addPackageFromInputStream.

void addPackageFromInputStream(final Resource resource) throws IOException, ClassNotFoundException {
    InputStream is = resource.getInputStream();
    Object object = DroolsStreamUtils.streamIn(is, this.configuration.getClassLoader());
    is.close();
    if (object instanceof Collection) {
        // KnowledgeBuilder API
        @SuppressWarnings("unchecked") Collection<KiePackage> pkgs = (Collection<KiePackage>) object;
        for (KiePackage kpkg : pkgs) {
            overrideReSource((KnowledgePackageImpl) kpkg, resource);
            addPackage((KnowledgePackageImpl) kpkg);
        }
    } else if (object instanceof KnowledgePackageImpl) {
        // KnowledgeBuilder API
        KnowledgePackageImpl kpkg = (KnowledgePackageImpl) object;
        overrideReSource(kpkg, resource);
        addPackage(kpkg);
    } else {
        results.add(new DroolsError(resource) {

            @Override
            public String getMessage() {
                return "Unknown binary format trying to load resource " + resource.toString();
            }

            @Override
            public int[] getLines() {
                return new int[0];
            }
        });
    }
}

Example 2 with DroolsError

use of org.drools.compiler.compiler.DroolsError in project drools by kiegroup.

the class ConditionalBranchBuilder method build.

public ConditionalBranch build(RuleBuildContext context, BaseDescr descr, Pattern prefixPattern) {
    ConditionalBranchDescr conditionalBranch = (ConditionalBranchDescr) descr;
    String consequenceName = conditionalBranch.getConsequence().getName();
    if (!context.getRuleDescr().getNamedConsequences().keySet().contains(consequenceName)) {
        DroolsError err = new RuleBuildError(context.getRule(), context.getParentDescr(), null, "Unknown consequence name: " + consequenceName);
        context.addError(err);
        return null;
    }
    RuleConditionBuilder evalBuilder = (RuleConditionBuilder) context.getDialect().getBuilder(EvalDescr.class);
    EvalCondition condition = (EvalCondition) evalBuilder.build(context, conditionalBranch.getCondition(), getLastPattern(context));
    NamedConsequenceBuilder namedConsequenceBuilder = (NamedConsequenceBuilder) context.getDialect().getBuilder(NamedConsequenceDescr.class);
    NamedConsequence consequence = namedConsequenceBuilder.build(context, conditionalBranch.getConsequence());
    ConditionalBranchDescr elseBranchDescr = conditionalBranch.getElseBranch();
    return new ConditionalBranch(condition, consequence, elseBranchDescr != null ? build(context, elseBranchDescr, prefixPattern) : null);
}

Example 3 with DroolsError

use of org.drools.compiler.compiler.DroolsError in project drools by kiegroup.

the class RuleBuilder method parseAnnotation.

private static void parseAnnotation(RuleBuildContext context, RuleImpl rule, RuleDescr ruleDescr, boolean enforceEager) {
    try {
        ActivationListener activationListener = ruleDescr.getTypedAnnotation(ActivationListener.class);
        if (activationListener != null) {
            rule.setActivationListener(MVELSafeHelper.getEvaluator().evalToString(activationListener.value()));
        }
        if (enforceEager) {
            rule.setEager(true);
        } else {
            Propagation propagation = ruleDescr.getTypedAnnotation(Propagation.class);
            if (propagation != null) {
                if (propagation.value() == Propagation.Type.IMMEDIATE) {
                    rule.setDataDriven(true);
                } else if (propagation.value() == Propagation.Type.EAGER) {
                    rule.setEager(true);
                }
            }
        }
        Direct direct = ruleDescr.getTypedAnnotation(Direct.class);
        if (direct != null && direct.value()) {
            rule.setActivationListener("direct");
        }
        rule.setAllMatches(ruleDescr.hasAnnotation(All.class));
    } catch (Exception e) {
        DroolsError err = new RuleBuildError(rule, context.getParentDescr(), null, e.getMessage());
        context.addError(err);
    }
}

Example 4 with DroolsError

use of org.drools.compiler.compiler.DroolsError in project drools by kiegroup.

the class RuleBuilder method buildAttributes.

public static void buildAttributes(final RuleBuildContext context) {
    final RuleImpl rule = context.getRule();
    final RuleDescr ruleDescr = context.getRuleDescr();
    boolean enforceEager = false;
    for (final AttributeDescr attributeDescr : ruleDescr.getAttributes().values()) {
        final String name = attributeDescr.getName();
        switch(name) {
            case "no-loop":
                rule.setNoLoop(getBooleanValue(attributeDescr, true));
                enforceEager = true;
                break;
            case "auto-focus":
                rule.setAutoFocus(getBooleanValue(attributeDescr, true));
                break;
            case "agenda-group":
                if (StringUtils.isEmpty(rule.getRuleFlowGroup())) {
                    // don't override if RFG has already set this
                    rule.setAgendaGroup(attributeDescr.getValue());
                } else {
                    if (rule.getRuleFlowGroup().equals(attributeDescr.getValue())) {
                        DroolsWarning warn = new RuleBuildWarning(rule, context.getParentDescr(), null, "Both an agenda-group ( " + attributeDescr.getValue() + " ) and a ruleflow-group ( " + rule.getRuleFlowGroup() + " ) are defined for rule " + rule.getName() + ". Since version 6.x the " + "two concepts have been unified, the ruleflow-group name will override the agenda-group. ");
                        context.addWarning(warn);
                    }
                }
                break;
            case "activation-group":
                rule.setActivationGroup(attributeDescr.getValue());
                break;
            case "ruleflow-group":
                rule.setRuleFlowGroup(attributeDescr.getValue());
                if (!rule.getAgendaGroup().equals(AgendaGroup.MAIN) && !rule.getAgendaGroup().equals(attributeDescr.getValue())) {
                    DroolsWarning warn = new RuleBuildWarning(rule, context.getParentDescr(), null, "Both an agenda-group ( " + attributeDescr.getValue() + " ) and a ruleflow-group ( " + rule.getRuleFlowGroup() + " ) are defined for rule " + rule.getName() + ". Since version 6.x the " + "two concepts have been unified, the ruleflow-group name will override the agenda-group. ");
                    context.addWarning(warn);
                }
                // assign AG to the same name as RFG, as they are aliased to AGs anyway
                rule.setAgendaGroup(attributeDescr.getValue());
                break;
            case "lock-on-active":
                boolean lockOnActive = getBooleanValue(attributeDescr, true);
                rule.setLockOnActive(lockOnActive);
                enforceEager |= lockOnActive;
                break;
            case DroolsSoftKeywords.DURATION:
            case DroolsSoftKeywords.TIMER:
                String duration = attributeDescr.getValue();
                buildTimer(rule, duration, context);
                break;
            case "calendars":
                buildCalendars(rule, attributeDescr.getValue(), context);
                break;
            case "date-effective":
                try {
                    Date date = DateUtils.parseDate(attributeDescr.getValue());
                    final Calendar cal = Calendar.getInstance();
                    cal.setTime(date);
                    rule.setDateEffective(cal);
                } catch (Exception e) {
                    DroolsError err = new RuleBuildError(rule, context.getParentDescr(), null, "Wrong date-effective value: " + e.getMessage());
                    context.addError(err);
                }
                break;
            case "date-expires":
                try {
                    Date date = DateUtils.parseDate(attributeDescr.getValue());
                    final Calendar cal = Calendar.getInstance();
                    cal.setTime(date);
                    rule.setDateExpires(cal);
                } catch (Exception e) {
                    DroolsError err = new RuleBuildError(rule, context.getParentDescr(), null, "Wrong date-expires value: " + e.getMessage());
                    context.addError(err);
                }
                break;
        }
    }
    buildSalience(context);
    buildEnabled(context);
    parseAnnotation(context, rule, ruleDescr, enforceEager);
}

Example 5 with DroolsError

use of org.drools.compiler.compiler.DroolsError in project drools by kiegroup.

the class RuleBuilder method buildCalendars.

private static void buildCalendars(RuleImpl rule, String calendarsString, RuleBuildContext context) {
    Object val = null;
    try {
        val = MVELSafeHelper.getEvaluator().eval(calendarsString);
        String[] calNames = null;
        if (val instanceof List) {
            calNames = (String[]) ((List) val).toArray(new String[((List) val).size()]);
        } else if (val instanceof String) {
            calNames = new String[] { (String) val };
        } else {
            DroolsError err = new RuleBuildError(rule, context.getParentDescr(), null, "Calendars attribute did not return a String or String[] '" + val + "'");
            context.addError(err);
        }
        if (calNames != null) {
            rule.setCalendars(calNames);
        }
    } catch (Exception e) {
        DroolsError err = new RuleBuildError(rule, context.getParentDescr(), null, "Unable to build Calendars attribute '" + val + "'" + e.getMessage());
        context.addError(err);
    }
}