Examples of org.mule.api.expression.InvalidExpressionException

org.mule.api.expression.InvalidExpressionException
Is thrown explicitly when an expression is Malformed or invalid. Malformed means the syntax is not correct, but an expression can be invalid if it refers to an expression namespace or function that does not exist

        {
            parser.validate(expression);
        }
        catch (IllegalArgumentException e)
        {
            throw new InvalidExpressionException(expression, e.getMessage());
        }


        final AtomicBoolean valid = new AtomicBoolean(true);
        final AtomicBoolean match = new AtomicBoolean(false);
        final StringBuffer message = new StringBuffer();
        parser.parse(new TemplateParser.TemplateCallback()
        {
            public Object match(String token)
            {
                match.set(true);
                if (token.indexOf(":") == -1)
                {
                    if (valid.get())
                    {
                        valid.compareAndSet(true, false);
                    }
                    message.append(token).append(" is invalid\n");
                }
                return null;
            }
        }, expression);


        if (message.length() > 0)
        {
            throw new InvalidExpressionException(expression, message.toString());
        }
        else if(!match.get())
        {
            throw new InvalidExpressionException(expression, "Expression string is not an expression.  Use isExpression(String) to validate first");
        }
    }

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        {
            parser.validate(expression);
        }
        catch (IllegalArgumentException e)
        {
            throw new InvalidExpressionException(expression, e.getMessage());
        }


        final AtomicBoolean valid = new AtomicBoolean(true);
        final AtomicBoolean match = new AtomicBoolean(false);
        final StringBuilder message = new StringBuilder();
        parser.parse(new TemplateParser.TemplateCallback()
        {
            public Object match(String token)
            {
                match.set(true);
                if (!isEvaluatorExpression(token))
                {
                    if (valid.get())
                    {
                        try
                        {
                            expressionLanguage.validate(token);
                        }
                        catch (InvalidExpressionException e)
                        {
                            valid.compareAndSet(true, false);
                            message.append(token).append(" is invalid\n");
                            message.append(e.getMessage());
                        }
                    }
                }
                return null;
            }
        }, expression);


        if (message.length() > 0)
        {
            throw new InvalidExpressionException(expression, message.toString());
        }
        else if (!match.get())
        {
            throw new InvalidExpressionException(expression,
                "Expression string is not an expression.  Use isExpression(String) to validate first");
        }
    }

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    {
        if (expression.startsWith(ExpressionManager.DEFAULT_EXPRESSION_PREFIX))
        {
            if (!expression.endsWith(ExpressionManager.DEFAULT_EXPRESSION_POSTFIX))
            {
                throw new InvalidExpressionException(expression, "Expression string is not an expression");
            }
            expression = expression.substring(2, expression.length() - 1);
        }


        try
        {
            expressionExecutor.validate(expression);
        }
        catch (CompileException e)
        {
            throw new InvalidExpressionException(expression, e.getMessage());
        }
    }

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Related Classes of org.mule.api.expression.InvalidExpressionException

org.mule.el.mvel.MVELExpressionLanguage

org.mule.expression.DefaultExpressionManager

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