Package org.mvel2.util

Examples of org.mvel2.util.FunctionParser

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    return variableScope.getVariable(name) != null;
  }
 
  public VariableResolver getVariableResolver(String name) {
    Object value = variableScope.getVariable(name);
    return new SimpleValueResolver(value);
  }
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    }

    @Override
    public void load(String name, String view) {
        // compile the template
        CompiledTemplate compiled = TemplateCompiler.compileTemplate(view);
        registry.addNamedTemplate(name, compiled);
    }
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    protected static String JAVA_RULE_MVEL             = "javaRule.mvel";
    protected static String JAVA_INVOKERS_MVEL         = "javaInvokers.mvel";

    public static void setConsequenceTemplate( String name ) {
        JAVA_RULE_MVEL = name;
        RULE_REGISTRY = new SimpleTemplateRegistry();
    }
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        RULE_REGISTRY = new SimpleTemplateRegistry();
    }

    public static void setInvokerTemplate( String name ) {
        JAVA_INVOKERS_MVEL = name;
        INVOKER_REGISTRY = new SimpleTemplateRegistry();
    }
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                                 final ProcessBuildContext context,
                                 final String className,
                                 final Map vars,
                                 final Object invokerLookup,
                                 final BaseDescr descrLookup) {
        TemplateRegistry registry = getRuleTemplateRegistry();

        context.getMethods().add(
                TemplateRuntime.execute(registry.getNamedTemplate(ruleTemplate), null, new MapVariableResolverFactory(vars), registry)
        );

        registry = getInvokerTemplateRegistry();
        final String invokerClassName = context.getPkg().getName() + "." + context.getProcessDescr().getClassName() + StringUtils.ucFirst(className) + "Invoker";

        context.getInvokers().put(invokerClassName,
                TemplateRuntime.execute(registry.getNamedTemplate(invokerTemplate), null, new MapVariableResolverFactory(vars), registry)
        );

        context.getInvokerLookups().put(invokerClassName,
                invokerLookup);
        context.getDescrLookups().put(invokerClassName,
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        generateMethodTemplate(ruleTemplate, context, vars);
        generateInvokerTemplate(invokerTemplate, context, className, vars, invokerLookup, descrLookup);
    }

    public static void generateMethodTemplate(final String ruleTemplate, final RuleBuildContext context, final Map vars) {
        TemplateRegistry registry = getRuleTemplateRegistry(context.getPackageBuilder().getRootClassLoader());

        context.addMethod((String) TemplateRuntime.execute( registry.getNamedTemplate(ruleTemplate),
                                                            null,
                                                            new MapVariableResolverFactory(vars),
                                                            registry) );
    }
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                                               final RuleBuildContext context,
                                               final String className,
                                               final Map vars,
                                               final Object invokerLookup,
                                               final BaseDescr descrLookup) {
        TemplateRegistry registry = getInvokerTemplateRegistry(context.getPackageBuilder().getRootClassLoader());
        final String invokerClassName = context.getPkg().getName() + "." + context.getRuleDescr().getClassName() + StringUtils.ucFirst( className ) + "Invoker";

        context.getInvokers().put( invokerClassName,
                                   (String) TemplateRuntime.execute( registry.getNamedTemplate( invokerTemplate ),
                                                                     null,
                                                                     new MapVariableResolverFactory( vars ),
                                                                     registry ) );

        context.getInvokerLookups().put( invokerClassName,
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            || isNotValidNameorLabel(name))
          throw new CompileException("illegal function name or use of reserved word", expr, cursor);

        if (pCtx == null) pCtx = getParserContext();

        FunctionParser parser = new FunctionParser(name, cursor, end - cursor, expr, fields, pCtx, splitAccumulator);
        Function function = parser.parse();
        cursor = parser.getCursor();

        return lastNode = function;
      }
      case PROTO: {
        if (ProtoParser.isUnresolvedWaiting()) {
          if (pCtx == null) pCtx = getParserContext();
          ProtoParser.checkForPossibleUnresolvedViolations(expr, cursor, pCtx);
        }

        int st = cursor;
        captureToNextTokenJunction();

        if (isReservedWord(name = createStringTrimmed(expr, st, cursor - st))
            || isNotValidNameorLabel(name))
          throw new CompileException("illegal prototype name or use of reserved word", expr, cursor);

        if (expr[cursor = nextNonBlank()] != '{') {
          throw new CompileException("expected '{' but found: " + expr[cursor], expr, cursor);
        }

        cursor = balancedCaptureWithLineAccounting(expr, st = cursor + 1, end, '{', pCtx);

        if (pCtx == null) pCtx = getParserContext();

        ProtoParser parser = new ProtoParser(expr, st, cursor, name, pCtx, fields, splitAccumulator);
        Proto proto = parser.parse();

        if (pCtx == null) pCtx = getParserContext();

        pCtx.addImport(proto);

        proto.setCursorPosition(st, cursor);
        cursor = parser.getCursor();

        ProtoParser.notifyForLateResolution(proto);

        return lastNode = proto;
      }
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                || isNotValidNameorLabel(name))
          throw new CompileException("illegal function name or use of reserved word", expr, cursor);

        if (pCtx == null) pCtx = getParserContext();

        FunctionParser parser = new FunctionParser(name, cursor, end - cursor, expr, fields, pCtx, splitAccumulator);
        Function function = parser.parse();
        cursor = parser.getCursor();

        return lastNode = function;
      }
      case PROTO:
        if (ProtoParser.isUnresolvedWaiting()) {
          if (pCtx == null) pCtx = getParserContext();
          ProtoParser.checkForPossibleUnresolvedViolations(expr, cursor, pCtx);
        }

        int st = cursor;
        captureToNextTokenJunction();

        if (isReservedWord(name = createStringTrimmed(expr, st, cursor - st))
                || isNotValidNameorLabel(name))
          throw new CompileException("illegal prototype name or use of reserved word", expr, cursor);

        if (expr[cursor = nextNonBlank()] != '{') {
          throw new CompileException("expected '{' but found: " + expr[cursor], expr, cursor);
        }

        cursor = balancedCaptureWithLineAccounting(expr, st = cursor + 1, end, '{', pCtx);

        if (pCtx == null) pCtx = getParserContext();

        ProtoParser parser = new ProtoParser(expr, st, cursor, name, pCtx, fields, splitAccumulator);
        Proto proto = parser.parse();

        if (pCtx == null) pCtx = getParserContext();

        pCtx.addImport(proto);

        proto.setCursorPosition(st, cursor);
        cursor = parser.getCursor();

        ProtoParser.notifyForLateResolution(proto);

        return lastNode = proto;
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        String[] allVars = new String[varNames.length + locals.length];

        System.arraycopy(varNames, 0, allVars, 0, varNames.length);
        System.arraycopy(locals, 0, allVars, varNames.length, locals.length);       
       
        this.varModel = new SimpleVariableSpaceModel(allVars);
        this.allVarsLength = allVars.length;
       
        return stmt;
    }
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