public boolean validate()

in spring-quartz/src/main/java/org/apache/archiva/redback/components/scheduler/CronExpressionValidator.java [48:123]
57 lines of code
13 McCabe index (conditional complexity)

    public boolean validate( String cronExpression )
    {
        try
        {
            String[] cronParams = StringUtils.split( cronExpression );

            if ( cronParams.length < 6 || cronParams.length > 7 )
            {
                return false;
            }

            CronTrigger cronTrigger = TriggerBuilder.newTrigger()
                .withSchedule( CronScheduleBuilder.cronSchedule( cronExpression ) )
                .build();



            if ( cronParams[3].equals( "?" ) || cronParams[5].equals( "?" ) )
            {
                //Check seconds param
                if ( !checkSecondsField( cronParams[0] ) )
                {
                    return false;
                }

                //Check minutes param
                if ( !checkMinutesField( cronParams[1] ) )
                {
                    return false;
                }

                //Check hours param
                if ( !checkHoursField( cronParams[2] ) )
                {
                    return false;
                }

                //Check day-of-month param
                if ( !checkDayOfMonthField( cronParams[3] ) )
                {
                    return false;
                }

                //Check months param
                if ( !checkMonthsField( cronParams[4] ) )
                {
                    return false;
                }

                //Check day-of-week param
                if ( !checkDayOfWeekField( cronParams[5] ) )
                {
                    return false;
                }

                //Check year param
                if ( cronParams.length == 7 )
                {
                    if ( !checkYearField( cronParams[6] ) )
                    {
                        return false;
                    }
                }

                return true;
            }
            else
            {
                return false;
            }
        }
        catch ( RuntimeException e )
        {
            return false;
        }
    }