Package org.mvel2

Examples of org.mvel2.ParserConfiguration

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    protected static final TemplateRegistry RULE_REGISTRY    = new SimpleTemplateRegistry();
    protected static final TemplateRegistry INVOKER_REGISTRY = new SimpleTemplateRegistry();

    public static synchronized TemplateRegistry getRuleTemplateRegistry(ClassLoader cl) {
        if ( !RULE_REGISTRY.contains( "rules" ) ) {
            ParserConfiguration pconf = new ParserConfiguration();
            pconf.setClassLoader( cl );
           
            ParserContext pctx = new ParserContext(pconf);
            RULE_REGISTRY.addNamedTemplate( "rules",
                                            TemplateCompiler.compileTemplate( AbstractJavaRuleBuilder.class.getResourceAsStream( "javaRule.mvel" ),
                                                                              pctx ) );
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        return RULE_REGISTRY;
    }

    public static synchronized TemplateRegistry getInvokerTemplateRegistry(ClassLoader cl) {
        if ( !INVOKER_REGISTRY.contains( "invokers" ) ) {
            ParserConfiguration pconf = new ParserConfiguration();
            pconf.setClassLoader( cl );
           
            ParserContext pctx = new ParserContext(pconf);           
            INVOKER_REGISTRY.addNamedTemplate( "invokers",
                                               TemplateCompiler.compileTemplate( AbstractJavaRuleBuilder.class.getResourceAsStream( "javaInvokers.mvel" ),
                                                                                 pctx ) );
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        if ( expr.trim().length() > 0 ) {
            MVEL.COMPILER_OPT_ALLOW_NAKED_METH_CALL = true;
            MVELDialect dialect = (MVELDialect) context.getDialect( "mvel" );
           
            MVELDialectRuntimeData data = ( MVELDialectRuntimeData) context.getPkg().getDialectRuntimeRegistry().getDialectData( "mvel" );
            ParserConfiguration conf = data.getParserConfiguration();

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

            // first compilation is for verification only
            // @todo proper source file name
            final ParserContext parserContext1 = new ParserContext( conf );
            if ( localTypes != null ) {
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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 ) {
                    context.addError( new DescrBuildError( context.getParentDescr(),
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            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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    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);
        pctx.setStrongTyping( false );
        pctx.addInput( "this",
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            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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    private 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.getPackageBuilder().getRootClassLoader() );

        final ParserContext pctx = new ParserContext( conf );
        pctx.setStrictTypeEnforcement( false );
        pctx.setStrongTyping( false );
        pctx.addInput( "this",
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        ValueType vtype = extractor.getValueType();
        try {
            String value = literalRestrictionDescr.getText().trim();

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

            Object o = MVEL.executeExpression( MVEL.compileExpression( value,
                                                                       pctx ) );
            if ( o != null && vtype == null ) {
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                                                      MVELDialect dialect) {

        //Lookup ParserConfiguration to retrieve imports and package imports
        PackageRegistry packageRegistry = dialect.getPackageRegistry();
        MVELDialectRuntimeData data = (MVELDialectRuntimeData) packageRegistry.getDialectRuntimeRegistry().getDialectData( dialect.getId() );
        ParserConfiguration pconf = data.getParserConfiguration();

        final ParserContext context = new ParserContext( pconf.getImports(),
                                                         null,
                                                         qualifiedName );

        if ( pconf.getPackageImports() != null ) {
            for ( Iterator it = pconf.getPackageImports().iterator(); it.hasNext(); ) {
                String packageImport = (String) it.next();
                context.addPackageImport( packageImport );
            }
        }
        context.setStrictTypeEnforcement( false );
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