Regarding the magic cookie of data file of UrlyBird project.

[jasn hofy]

Hi Experts,
In the Data file format section, it states
----------
Start of file
4 byte numeric, magic cookie value. Identifies this as a data file
2 byte numeric, number of fields in each record
----------
It seems we should perform validation against the magic cookie, but I am not sure if my understanding is correct or not.

[Paweł Baczyński]

Does your instruction state that you must validate the magic cookie?

[Roel De Nijs]

jasn hofy wrote:It seems we should perform validation against the magic cookie, but I am not sure if my understanding is correct or not.

I validated the magic cookie (nothing more but a comparison to a hard-coded value), but it is definitely not a must requirement and therefore not required.

[jasn hofy]

Roel De Nijs wrote:

jasn hofy wrote:It seems we should perform validation against the magic cookie, but I am not sure if my understanding is correct or not.

I validated the magic cookie (nothing more but a comparison to a hard-coded value), but it is definitely not a must requirement and therefore not required.

Thanks a lot Roel, if we need validation, that means we need to throw our own defined exception, right?  

[Paweł Baczyński]

jasn hofy wrote:That means we need to throw our own defined exception, right?  

That means it is up to you to decide.

[jasn hofy]

Paweł Baczyński wrote:

jasn hofy wrote:That means we need to throw our own defined exception, right?  

That means it is up to you to decide.

OK...Thanks

[Roel De Nijs]

jasn hofy wrote:if we need validation, that means we need to throw our own defined exception, right?  

The beauty of this project is that you can decide almost everything yourself and there is not really a right or wrong. You can document your decisions in the choices.txt file. There's only one exception to this rule: the "must" requirements! If you don't meet this requirements, you risk (automatic) failure.

Just for the record: I created a custom exception.

[jasn hofy]

Roel De Nijs wrote:

jasn hofy wrote:if we need validation, that means we need to throw our own defined exception, right?  

The beauty of this project is that you can decide almost everything yourself and there is not really a right or wrong. You can document your decisions in the choices.txt file. There's only one exception to this rule: the "must" requirements! If you don't meet this requirements, you risk (automatic) failure.

Just for the record: I created a custom exception.

Thanks a lot!