Examples of EvalDescr

Examples of org.drools.lang.descr.EvalDescr

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                      pack.getRules().size() );
        final RuleDescr rule = (RuleDescr) pack.getRules().get( 0 );
        assertEquals( 4,
                      rule.getLhs().getDescrs().size() );

        final EvalDescr eval = (EvalDescr) rule.getLhs().getDescrs().get( 0 );
        assertEqualsIgnoreWhitespace( "abc(\"foo\") + 5",
                                      (String) eval.getContent() );

        final PatternDescr pattern = (PatternDescr) rule.getLhs().getDescrs().get( 1 );
        assertEquals( "Foo",
                      pattern.getObjectType() );
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Examples of org.drools.lang.descr.EvalDescr

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        map.put( "a",
                 declaration );
        declarationResolver.setDeclarations( map );
        context.setDeclarationResolver( declarationResolver );

        final EvalDescr evalDescr = new EvalDescr();
        evalDescr.setContent( "a == 10" );

        final MVELEvalBuilder builder = new MVELEvalBuilder();
        final EvalCondition eval = (EvalCondition) builder.build( context,
                                                                  evalDescr );
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Examples of org.drools.lang.descr.EvalDescr

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import static org.drools.rule.builder.dialect.java.JavaRuleBuilderHelper.registerInvokerBytecode;

public abstract class AbstractASMEvalBuilder implements RuleConditionBuilder {
    public RuleConditionElement build(RuleBuildContext context, BaseDescr descr) {
        // it must be an EvalDescr
        final EvalDescr evalDescr = (EvalDescr) descr;

        Map<String, Declaration> decls = context.getDeclarationResolver().getDeclarations( context.getRule() );

        AnalysisResult analysis = context.getDialect().analyzeExpression( context,
                                                                          evalDescr,
                                                                          evalDescr.getContent(),
                                                                          new BoundIdentifiers( context.getDeclarationResolver().getDeclarationClasses(decls),
                                                                                                context.getPackageBuilder().getGlobals() ) );

        final Declaration[] declarations = decls.values().toArray( new Declaration[decls.size()]);
        return buildEval(context, evalDescr, analysis, declarations);
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Examples of org.drools.lang.descr.EvalDescr

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    public RuleConditionElement build(RuleBuildContext context, BaseDescr descr, Pattern prefixPattern) {
        if (prefixPattern == null) {
            return build(context, descr);
        }

        EvalDescr evalDescr = (EvalDescr) descr;

        PredicateDescr predicateDescr = new PredicateDescr( context.getRuleDescr().getResource(), evalDescr.getContent() );
        AnalysisResult analysis = buildAnalysis(context, prefixPattern, predicateDescr, null );

        Declaration[] declarations = getUsedDeclarations(context, prefixPattern, analysis);
        return buildEval(context, evalDescr, analysis, declarations);
    }
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Examples of org.drools.lang.descr.EvalDescr

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public class EvalDescrBuilderImpl<P extends DescrBuilder<?, ?>> extends BaseDescrBuilderImpl<P, EvalDescr>
    implements
    EvalDescrBuilder<P> {

    public EvalDescrBuilderImpl( P parent ) {
        super( parent, new EvalDescr() );
    }
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Examples of org.drools.lang.descr.EvalDescr

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                        final Attributes attrs,
                        final ExtensibleXmlParser parser) throws SAXException {
        parser.startElementBuilder( localName,
                                    attrs );

        final EvalDescr evalDescr = new EvalDescr();

        return evalDescr;
    }
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Examples of org.drools.lang.descr.EvalDescr

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    public Object end(final String uri,
                      final String localName,
                      final ExtensibleXmlParser parser) throws SAXException {
        final Element element = parser.endElementBuilder();

        final EvalDescr evalDescr = (EvalDescr) parser.getCurrent();

        final String expression =((org.w3c.dom.Text)element.getChildNodes().item( 0 )).getWholeText();

        emptyContentCheck( localName, expression, parser );

        evalDescr.setContent( expression );

        final ConditionalElementDescr parentDescr = (ConditionalElementDescr) parser.getParent();
        parentDescr.addDescr( evalDescr );

        return evalDescr;
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Examples of org.drools.lang.descr.EvalDescr

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    public RuleConditionElement build(final RuleBuildContext context,
                                      final BaseDescr descr,
                                      final Pattern prefixPattern) {
        boolean typesafe = context.isTypesafe();
        // it must be an EvalDescr
        final EvalDescr evalDescr = (EvalDescr) descr;

        try {
            MVELDialect dialect = (MVELDialect) context.getDialect( context.getDialect().getId() );

            Map<String, Declaration> decls = context.getDeclarationResolver().getDeclarations(context.getRule());
           
            AnalysisResult analysis = context.getDialect().analyzeExpression( context,
                                                                              evalDescr,
                                                                              evalDescr.getContent(),
                                                                              new BoundIdentifiers(context.getDeclarationResolver().getDeclarationClasses( decls ),
                                                                                                   context.getPackageBuilder().getGlobals() ) );

            final BoundIdentifiers usedIdentifiers = analysis.getBoundIdentifiers();
            int i = usedIdentifiers.getDeclrClasses().keySet().size();
            Declaration[] previousDeclarations = new Declaration[i];
            i = 0;
            for ( String id :  usedIdentifiers.getDeclrClasses().keySet() ) {
                previousDeclarations[i++] = decls.get( id );
            }
            Arrays.sort( previousDeclarations, SortDeclarations.instance  );
           
            MVELCompilationUnit unit = dialect.getMVELCompilationUnit( (String) evalDescr.getContent(),
                                                                       analysis,
                                                                       previousDeclarations,
                                                                       null,
                                                                       null,
                                                                       context,
                                                                       "drools",
                                                                       KnowledgeHelper.class,
                                                                       false );
            final EvalCondition eval = new EvalCondition( previousDeclarations );

            MVELEvalExpression expr = new MVELEvalExpression( unit,
                                                              dialect.getId() );
            eval.setEvalExpression( expr );

            MVELDialectRuntimeData data = (MVELDialectRuntimeData) context.getPkg().getDialectRuntimeRegistry().getDialectData( "mvel" );
            data.addCompileable( eval,
                                  expr );

            expr.compile( data );
            return eval;
        } catch ( final Exception e ) {
            copyErrorLocation(e, evalDescr);
            context.addError( new DescrBuildError( context.getParentDescr(),
                                                          evalDescr,
                                                          e,
                                                          "Unable to build expression for 'eval':" + e.getMessage() + " '" + evalDescr.getContent() + "'" ) );
            return null;
        } finally {
            context.setTypesafe( typesafe );
        }
    }
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Examples of org.drools.lang.descr.EvalDescr

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     */
    public RuleConditionElement build(final RuleBuildContext context,
                                      final BaseDescr descr,
                                      final Pattern prefixPattern) {
        // it must be an EvalDescr
        final EvalDescr evalDescr = (EvalDescr) descr;

        final String className = "eval" + context.getNextId();

        evalDescr.setClassMethodName( className );
       
        Map<String, Declaration> decls = context.getDeclarationResolver().getDeclarations(context.getRule());

        AnalysisResult analysis = context.getDialect().analyzeExpression( context,
                                                                                  evalDescr,
                                                                                  evalDescr.getContent(),
                                                                                  new BoundIdentifiers( context.getDeclarationResolver().getDeclarationClasses( decls ),                
                                                                                                        context.getPackageBuilder().getGlobals() ) );
        final BoundIdentifiers usedIdentifiers = analysis.getBoundIdentifiers();

        final Declaration[] declarations = decls.values().toArray( new Declaration[decls.size()]);
        Arrays.sort( declarations, SortDeclarations.instance  );
       
        final EvalCondition eval = new EvalCondition( declarations );

        final Map map = createVariableContext( className,
                                               (String) evalDescr.getContent(),
                                               context,
                                               declarations,
                                               null,
                                               usedIdentifiers.getGlobals()
        );
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Examples of org.drools.lang.descr.EvalDescr

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        map.put( "a",
                 declaration );
        declarationResolver.setDeclarations( map );
        context.setDeclarationResolver( declarationResolver );

        final EvalDescr evalDescr = new EvalDescr();
        evalDescr.setContent( "a == 10" );

        final MVELEvalBuilder builder = new MVELEvalBuilder();
        final EvalCondition eval = (EvalCondition) builder.build( context,
                                                                  evalDescr );
        ((MVELEvalExpression) eval.getEvalExpression()).compile( (MVELDialectRuntimeData) pkgBuilder.getPackageRegistry( pkg.getName() ).getDialectRuntimeRegistry().getDialectData( "mvel" ) );
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