Package org.drools.core.rule

Examples of org.drools.core.rule.MVELDialectRuntimeData

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            MVEL.COMPILER_OPT_ALLOW_NAKED_METH_CALL = true;
            MVEL.COMPILER_OPT_ALLOW_OVERRIDE_ALL_PROPHANDLING = true;
            MVEL.COMPILER_OPT_ALLOW_RESOLVE_INNERCLASSES_WITH_DOTNOTATION = true;
            MVEL.COMPILER_OPT_SUPPORT_JAVA_STYLE_CLASS_LITERALS = true;

            MVELDialectRuntimeData data = (MVELDialectRuntimeData) context.getPkg().getDialectRuntimeRegistry().getDialectData( "mvel" );
            ParserConfiguration pconf = data.getParserConfiguration();
            ParserContext pctx = new ParserContext( pconf );

            Object o = MVELSafeHelper.getEvaluator().executeExpression( MVEL.compileExpression( value,
                    pctx ) );
            if ( o != null && vtype == null ) {
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                                                                                      ((ClassObjectType) objectType).getClassName(),
                                                                                      fieldName,
                                                                                      context.isTypesafe(),
                                                                                      ((MVELAnalysisResult)analysis).getReturnType() );
               
                MVELDialectRuntimeData data = (MVELDialectRuntimeData) context.getPkg().getDialectRuntimeRegistry().getDialectData( "mvel" );
                ((MVELCompileable) reader).compile( data );
                data.addCompileable( (MVELCompileable) reader );
            } catch ( final Exception e ) {
                int dotPos = fieldName.indexOf('.');
                String varName = dotPos > 0 ? fieldName.substring(0, dotPos).trim() : fieldName;
                if (globals.containsKey(varName)) {
                    return null;
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                                                                                             type.getTypeClass().getName(),
                                                                                             timestamp,
                                                                                             type.isTypesafe(),
                                                                                             results.getReturnType());

                MVELDialectRuntimeData data = (MVELDialectRuntimeData) pkg.getDialectRuntimeRegistry().getDialectData("mvel");
                data.addCompileable((MVELCompileable) reader);
                ((MVELCompileable) reader).compile(data);
                type.setTimestampExtractor(reader);
            } else {
                kbuilder.addBuilderResult(new TypeDeclarationError(typeDescr,
                                                                   "Error creating field accessors for timestamp field '" + timestamp +
                                                                   "' for type '" +
                                                                   type.getTypeName() +
                                                                   "'"));
            }
        }

        annotationDescr = typeDescr.getAnnotation(TypeDeclaration.ATTR_DURATION);
        String duration = (annotationDescr != null) ? annotationDescr.getSingleValue() : null;
        if (duration != null) {
            type.setDurationAttribute(duration);
            InternalKnowledgePackage pkg = pkgRegistry.getPackage();

            MVELDialect dialect = (MVELDialect) pkgRegistry.getDialectCompiletimeRegistry().getDialect("mvel");
            PackageBuildContext context = new PackageBuildContext();
            context.init(kbuilder, pkg, typeDescr, pkgRegistry.getDialectCompiletimeRegistry(), dialect, null);
            if (!type.isTypesafe()) {
                context.setTypesafe(false);
            }

            MVELAnalysisResult results = (MVELAnalysisResult)
                    context.getDialect().analyzeExpression(context,
                                                           typeDescr,
                                                           duration,
                                                           new BoundIdentifiers(Collections.EMPTY_MAP,
                                                                                Collections.EMPTY_MAP,
                                                                                Collections.EMPTY_MAP,
                                                                                type.getTypeClass()));

            if (results != null) {
                InternalReadAccessor reader = pkg.getClassFieldAccessorStore().getMVELReader(ClassUtils.getPackage(type.getTypeClass()),
                                                                                             type.getTypeClass().getName(),
                                                                                             duration,
                                                                                             type.isTypesafe(),
                                                                                             results.getReturnType());

                MVELDialectRuntimeData data = (MVELDialectRuntimeData) pkg.getDialectRuntimeRegistry().getDialectData("mvel");
                data.addCompileable((MVELCompileable) reader);
                ((MVELCompileable) reader).compile(data);
                type.setDurationExtractor(reader);
            } else {
                kbuilder.addBuilderResult(new TypeDeclarationError(typeDescr,
                                                                   "Error processing @duration for TypeDeclaration '" + type.getFullName() +
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                MVELDumper.MVELDumperContext mvelCtx = new MVELDumper.MVELDumperContext();
                String expr = context.getCompilerFactory().getExpressionProcessor().dump( bresult,
                                                                                          mvelCtx );
                try {
                    MVELDialectRuntimeData data = ( MVELDialectRuntimeData) context.getPkg().getDialectRuntimeRegistry().getDialectData( "mvel" );
                    ParserConfiguration conf = data.getParserConfiguration();
                    conf.setClassLoader( context.getKnowledgeBuilder().getRootClassLoader() );

                    arguments.set( pos,
                    MVELSafeHelper.getEvaluator().executeExpression( MVEL.compileExpression( expr, new ParserContext( conf ) ) ) );
                } catch ( Exception e ) {
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            // it's an expression and thus an input
            MVELDumper.MVELDumperContext mvelCtx = new MVELDumper.MVELDumperContext();
            String rewrittenExpr = context.getCompilerFactory().getExpressionProcessor().dump( result, mvelCtx );

            try {
                MVELDialectRuntimeData data = ( MVELDialectRuntimeData) context.getPkg().getDialectRuntimeRegistry().getDialectData( "mvel" );
                ParserConfiguration conf = data.getParserConfiguration();
                conf.setClassLoader( context.getKnowledgeBuilder().getRootClassLoader() );

                arguments.set( position, MVELSafeHelper.getEvaluator().executeExpression( MVEL.compileExpression( rewrittenExpr, new ParserContext( conf ) ) ) );
            } catch ( Exception e ) {
                context.addError( new DescrBuildError( context.getParentDescr(), base, null, "Unable to compile expression:\n" + rewrittenExpr ) );
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                                                                                             type.getTypeClass().getName(),
                                                                                             timestamp,
                                                                                             type.isTypesafe(),
                                                                                             results.getReturnType());

                MVELDialectRuntimeData data = (MVELDialectRuntimeData) pkg.getDialectRuntimeRegistry().getDialectData("mvel");
                data.addCompileable((MVELCompileable) reader);
                ((MVELCompileable) reader).compile(data);
                type.setTimestampExtractor(reader);
            } else {
                kbuilder.addBuilderResult(new TypeDeclarationError(typeDescr,
                                                                   "Error creating field accessors for timestamp field '" + timestamp +
                                                                   "' for type '" +
                                                                   type.getTypeName() +
                                                                   "'"));
            }
        }

        annotationDescr = typeDescr.getAnnotation(TypeDeclaration.ATTR_DURATION);
        String duration = (annotationDescr != null) ? annotationDescr.getSingleValue() : null;
        if (duration != null) {
            type.setDurationAttribute(duration);
            InternalKnowledgePackage pkg = pkgRegistry.getPackage();

            MVELDialect dialect = (MVELDialect) pkgRegistry.getDialectCompiletimeRegistry().getDialect("mvel");
            PackageBuildContext context = new PackageBuildContext();
            context.init(kbuilder, pkg, typeDescr, pkgRegistry.getDialectCompiletimeRegistry(), dialect, null);
            if (!type.isTypesafe()) {
                context.setTypesafe(false);
            }

            MVELAnalysisResult results = (MVELAnalysisResult)
                    context.getDialect().analyzeExpression(context,
                                                           typeDescr,
                                                           duration,
                                                           new BoundIdentifiers(Collections.EMPTY_MAP,
                                                                                Collections.EMPTY_MAP,
                                                                                Collections.EMPTY_MAP,
                                                                                type.getTypeClass()));

            if (results != null) {
                InternalReadAccessor reader = pkg.getClassFieldAccessorStore().getMVELReader(ClassUtils.getPackage(type.getTypeClass()),
                                                                                             type.getTypeClass().getName(),
                                                                                             duration,
                                                                                             type.isTypesafe(),
                                                                                             results.getReturnType());

                MVELDialectRuntimeData data = (MVELDialectRuntimeData) pkg.getDialectRuntimeRegistry().getDialectData("mvel");
                data.addCompileable((MVELCompileable) reader);
                ((MVELCompileable) reader).compile(data);
                type.setDurationExtractor(reader);
            } else {
                kbuilder.addBuilderResult(new TypeDeclarationError(typeDescr,
                                                                   "Error processing @duration for TypeDeclaration '" + type.getFullName() +
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    protected void setInputs( RuleBuildContext context,
                            ExprBindings descrBranch,
                            Class< ? > thisClass,
                            String expr ) {
        MVELDialectRuntimeData data = (MVELDialectRuntimeData) context.getPkg().getDialectRuntimeRegistry().getDialectData( "mvel" );
        ParserConfiguration conf = data.getParserConfiguration();

        conf.setClassLoader( context.getKnowledgeBuilder().getRootClassLoader() );

        final ParserContext pctx = new ParserContext( conf );
        pctx.setStrictTypeEnforcement(false);
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            MVEL.COMPILER_OPT_ALLOW_NAKED_METH_CALL = true;
            MVEL.COMPILER_OPT_ALLOW_OVERRIDE_ALL_PROPHANDLING = true;
            MVEL.COMPILER_OPT_ALLOW_RESOLVE_INNERCLASSES_WITH_DOTNOTATION = true;
            MVEL.COMPILER_OPT_SUPPORT_JAVA_STYLE_CLASS_LITERALS = true;

            MVELDialectRuntimeData data = (MVELDialectRuntimeData) context.getPkg().getDialectRuntimeRegistry().getDialectData( "mvel" );
            ParserConfiguration pconf = data.getParserConfiguration();
            ParserContext pctx = new ParserContext( pconf );

            Object o = MVELSafeHelper.getEvaluator().executeExpression( MVEL.compileExpression( value,
                    pctx ) );
            if ( o != null && vtype == null ) {
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                                                                                      ((ClassObjectType) objectType).getClassName(),
                                                                                      fieldName,
                                                                                      context.isTypesafe(),
                                                                                      ((MVELAnalysisResult)analysis).getReturnType() );
               
                MVELDialectRuntimeData data = (MVELDialectRuntimeData) context.getPkg().getDialectRuntimeRegistry().getDialectData( "mvel" );
                ((MVELCompileable) reader).compile( data );
                data.addCompileable( (MVELCompileable) reader );
            } catch ( final Exception e ) {
                int dotPos = fieldName.indexOf('.');
                String varName = dotPos > 0 ? fieldName.substring(0, dotPos).trim() : fieldName;
                if (globals.containsKey(varName)) {
                    return null;
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        BuildContext buildContext = new BuildContext( rbase,
                                                      rbase.getReteooBuilder().getIdGenerator() );

        Rule rule = new Rule( "rule1", "org.pkg1", null );
        org.drools.core.rule.Package pkg = new org.drools.core.rule.Package( "org.pkg1" );
        pkg.getDialectRuntimeRegistry().setDialectData( "mvel", new MVELDialectRuntimeData() );
        pkg.addRule( rule );
        buildContext.setRule( rule );

        return buildContext;
    }
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Related Classes of org.drools.core.rule.MVELDialectRuntimeData

  • org.drools.compiler.builder.impl.TypeDeclarationBuilder
  • org.drools.compiler.builder.impl.TypeDeclarationConfigurator
  • org.drools.compiler.compiler.PackageBuilder
  • org.drools.compiler.phreak.PhreakJoinNodeTest
  • org.drools.compiler.phreak.PhreakNotNodeTest
  • org.drools.compiler.phreak.ScenarioTest
  • org.drools.compiler.phreak.SegmentPropagationTest
  • org.drools.compiler.rule.builder.dialect.mvel.MVELAccumulateBuilder
  • org.drools.compiler.rule.builder.dialect.mvel.MVELConsequenceBuilder
  • org.drools.compiler.rule.builder.dialect.mvel.MVELDialect
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