Friday, September 11, 2015, 1:30:27 PM, Pradeep Murugesan wrote:

> Hi Daniel,
>
> Have fixed things. Except for the following
> 1. All the old non-AJAX code can be removed now          I thought
> we would be needing this when we try to connect FM-online from user manual.

You meant the examples in the manual would do a HTTP POST that
immediately run the code. I think you are right, that would be better
then filling the form with a POST, and then starting an AJAX request.
However, the amount of code duplication should minimized (if it
wasn't). Also we will need a test just for this case.

> 2. Regarding the Ajax spinner I have used the blockUI library 
> http://malsup.com/jquery/block/. Let me know if we need to change this.

I think it will be good, because it only starts to change the screen
after a while, so for fast executions you see no flashing or such.
Certainly it need to be adjusted though, as the on-line service
certainly won't respond that fast, so the darkening will be started
too early.

> 3. Web driver test - I am trying to make it work.

I suspect the selenium thing will only cover the initial POST (the
Manual use case).

When the JUnit coverage is good enough, I think you should make a pull
request. (Tell me when you are about doing that, so that I can check
the thing for the last time.)

> Others , I have fixed and pushed. 
> https://github.com/pradeepmurugesan/freemarker-online/commit/22e310f7112ce28c470e162893984940b720c8c0
>
> Pradeep.
>> Date: Mon, 7 Sep 2015 23:32:01 +0200
>> From: [email protected]
>> To: [email protected]
>> Subject: Re: Rest Service for FreeMarkerOnline
>> 
>> I have looked at it now. I haven't seen any big issues. I ran into
>> small things (some of you may know about):
>> 
>> - Bug: Template-related errors point to the dataModel in the response JSON
>> 
>> - Bug: The validForm function in script.js... you will see if you look at
>>   it. I think blocking submissions with empty template is good, and
>>   empty data-model is not a problem.
>> 
>> - All the old non-AJAX code can be removed now
>> 
>> - Cleaning up stuff like unnecessary buildFreeMarkerResponse method,
>>   debug logs in scrip.js, etc. Also naming cleanup, like
>>   FreeMarkerError to ErrorCode. And use name() instead of
>>   toString() for enums.
>> 
>> - Submitting makes the edit boxes "flash", as you quickly disable and
>>   enable them. I think it's kind of unpleasant. Maybe you just
>>   shouldn't disable them, only the submitt button, and then show the
>>   usual spinning wheel over the output area. Or something like that.
>> 
>> - The selenium JUnit test fails. I guess it won't work with AJAX
>>   anyway, so it will have to be removed, but I haven't looked into it.
>> 
>> - Can `Map<String, String> problems` be a
>>   `Map<ExecuteResourceErrorFields, String>`? I'm not sure if Jeresy
>>   will handle that, but if it does, it's cleaner.
>> 
>> 
>> Monday, September 7, 2015, 4:25:12 PM, Pradeep Murugesan wrote:
>> 
>> > Hi Daniel, Got a chance to review this ?
>> > Pradeep.
>> >
>> >> Date: Thu, 3 Sep 2015 22:17:38 +0200
>> >> From: [email protected]
>> >> To: [email protected]
>> >> Subject: Re: Rest Service for FreeMarkerOnline
>> >> 
>> >> I will... tomorrow or at the weekend.
>> >> 
>> >> 
>> >> Thursday, September 3, 2015, 8:27:15 PM, Pradeep Murugesan wrote:
>> >> 
>> >> > Hi Daniel,
>> >> > Kindly review when ever you find time.
>> >> > https://github.com/pradeepmurugesan/freemarker-online/commit/4445f45997c1eaf76c6b4e13e8c2054ee163e034https://github.com/pradeepmurugesan/freemarker-online/commit/d8e25be864a25596d29f875fa845695d02168e26
>> >> > Pradeep.
>> >> >> From: [email protected]
>> >> >> Subject: Re: Rest Service for FreeMarkerOnline
>> >> >> Date: Tue, 1 Sep 2015 23:40:38 +0530
>> >> >> To: [email protected]
>> >> >> 
>> >> >> Yup.. Finishing the current task is the priority. 
>> >> >> 
>> >> >> Pradeep.
>> >> >> 
>> >> >> > On 01-Sep-2015, at 10:09 pm, "Daniel Dekany" <[email protected]> 
>> >> >> > wrote:
>> >> >> > 
>> >> >> > Tuesday, September 1, 2015, 10:01:31 AM, Pradeep Murugesan wrote:
>> >> >> > 
>> >> >> >> Sure Daniel,
>> >> >> >> I will change the initialization @ method level.
>> >> >> >> I have a couple of questions. Please reply when you find time. 
>> >> >> >> Sorry If its too naive.
>> >> >> >> 1. I tried to check whether jersey's resource methods are singleton
>> >> >> >> but found in the doc that they spawn a thread for each request. And
>> >> >> >> we may turn on the singleton thing if required through some explicit
>> >> >> >> settings.
>> >> >> > 
>> >> >> > It's Spring bean (@Component), and those are singletons by default.
>> >> >> > Even if wasn't a singleton, I see no reason for a response object to
>> >> >> > be recycled between requests. It can be the source for hideous bugs,
>> >> >> > as you start with a dirty object, etc.
>> >> >> > 
>> >> >> >> I browsed our code to see if we have some setting but
>> >> >> >> couldn't find anything.
>> >> >> > 
>> >> >> > The easiest is just trying it with some log messages.
>> >> >> > 
>> >> >> >> In 3.4 of
>> >> >> >> https://jersey.java.net/nonav/documentation/latest/user-guide.html#d0e2586
>> >> >> >> we can see they mentioning the above.
>> >> >> >> 2. In the mean time I am trying to get hold of how freemarker
>> >> >> >> template engine works by trying to fix some low hanging bugs so that
>> >> >> >> I can understand the architecture better. I am browsing for issues
>> >> >> >> here http://sourceforge.net/p/freemarker/bugs/. Kindly let me know a
>> >> >> >> good place or a minor bug to start with.
>> >> >> > 
>> >> >> > Most bugs will be stuff that isn't fixed because it's tricky to fix
>> >> >> > them, often because of backward compatibility requirements... But for
>> >> >> > example here's this new one:
>> >> >> > http://sourceforge.net/p/freemarker/bugs/434/ Could be checked if 
>> >> >> > it's
>> >> >> > true, and why it happens. But of course deal what we feel like with.
>> >> >> > 
>> >> >> > (It's also a good idea to polishing what you have started, like
>> >> >> > writing the JUnit tests, etc.)
>> >> >> > 
>> >> >> >> Pradeep.
>> >> >> >> 
>> >> >> >>> Date: Mon, 31 Aug 2015 20:49:34 +0200
>> >> >> >>> From: [email protected]
>> >> >> >>> To: [email protected]
>> >> >> >>> Subject: Re: Rest Service for FreeMarkerOnline
>> >> >> >>> 
>> >> >> >>> OK, thanks! I will be rather busy for a few days, so it might will
>> >> >> >>> take a while until I check this out in detail. But I assume you 
>> >> >> >>> know
>> >> >> >>> of things that you wanted to finish/polish anyway.
>> >> >> >>> 
>> >> >> >>> Something I have spotted with this quick look now is that
>> >> >> >>> executeResponse shouldn't be a field in
>> >> >> >>> FreeMarkerOnlineExecuteResource, as I suppose the resource object 
>> >> >> >>> is a
>> >> >> >>> singleton used by multiple threads.
>> >> >> >>> 
>> >> >> >>> 
>> >> >> >>> Monday, August 31, 2015, 3:21:09 PM, Pradeep Murugesan wrote:
>> >> >> >>> 
>> >> >> >>>> Hi Daniel,
>> >> >> >>>> 
>> >> >> >>>> https://github.com/pradeepmurugesan/freemarker-online/commit/71e70d6caf9bead735ca0f2b6eb4f81c708a1922
>> >> >> >>>> I have fixed the code review comments and integrated the same 
>> >> >> >>>> with UI.
>> >> >> >>>> Please let me know your reviews.
>> >> >> >>>> 
>> >> >> >>>> Pradeep.
>> >> >> >>>> 
>> >> >> >>>>> Date: Mon, 31 Aug 2015 12:22:17 +0200
>> >> >> >>>>> From: [email protected]
>> >> >> >>>>> To: [email protected]
>> >> >> >>>>> Subject: Re: Rest Service for FreeMarkerOnline
>> >> >> >>>>> 
>> >> >> >>>>> Certainly it's good enough to go ahead with the UI.
>> >> >> >>>>> 
>> >> >> >>>>> Some random stuff I have noticed:
>> >> >> >>>>> 
>> >> >> >>>>> - In "problems", the field names by convention should start with 
>> >> >> >>>>> lower
>> >> >> >>>>>  case, and they will have to be extracted to enums (or to static
>> >> >> >>>>>  final String-s).
>> >> >> >>>>> 
>> >> >> >>>>> - Class names will need some cleanup. Like FreeMarkerPayload and
>> >> >> >>>>>  FreeMarkerResponse are in fact for the "execute" resource only, 
>> >> >> >>>>> not
>> >> >> >>>>>  for FM-Online in general, so I guess they should be 
>> >> >> >>>>> ExecutreRequest
>> >> >> >>>>>  and ExecuteResponse. FreeMarkerErrorReponse is for the FM 
>> >> >> >>>>> *online*
>> >> >> >>>>>  service, but that's already told by the package so... maybe just
>> >> >> >>>>>  ErrorResponse. Anyway, these are just Alt+Shift+R things.
>> >> >> >>>>> 
>> >> >> >>>>> -- 
>> >> >> >>>>> Thanks,
>> >> >> >>>>> Daniel Dekany
>> >> >> >>>>> 
>> >> >> >>>>> 
>> >> >> >>>>> Sunday, August 30, 2015, 4:47:55 PM, Pradeep Murugesan wrote:
>> >> >> >>>>> 
>> >> >> >>>>>> Hi Daniel,
>> >> >> >>>>>> https://github.com/pradeepmurugesan/freemarker-online/commit/80c984af1e810d69db2894146d67b52e2449a584
>> >> >> >>>>>> 
>> >> >> >>>>>> I have made the changes as per your comments below. Please 
>> >> >> >>>>>> review
>> >> >> >>>>>> and let me know if any corrections.
>> >> >> >>>>>> Still I didn't do the UI for this new Response structure. 
>> >> >> >>>>>> Thought
>> >> >> >>>>>> we will finalize the API Responses then we will get into the UI.
>> >> >> >>>>>> Pradeep.
>> >> >> >>>>>> 
>> >> >> >>>>>>> Date: Sat, 29 Aug 2015 18:30:33 +0200
>> >> >> >>>>>>> From: [email protected]
>> >> >> >>>>>>> To: [email protected]
>> >> >> >>>>>>> Subject: Re: Rest Service for FreeMarkerOnline
>> >> >> >>>>>>> 
>> >> >> >>>>>>> Saturday, August 29, 2015, 4:12:16 PM, Pradeep Murugesan wrote:
>> >> >> >>>>>>> 
>> >> >> >>>>>>>> okay..
>> >> >> >>>>>>>> So almost all the errors we handle should go under Success 
>> >> >> >>>>>>>> right.
>> >> >> >>>>>>>> Having a structure like this would help I believe.
>> >> >> >>>>>>>> {  error: true/false,  outputTruncated: true/false,  
>> >> >> >>>>>>>> failureReason: String  output: String}
>> >> >> >>>>>>> 
>> >> >> >>>>>>> That's for the HTTP 200 answers only, I assume. We miss the
>> >> >> >>>>>>> information about which field the failureReason applies to. 
>> >> >> >>>>>>> So, I
>> >> >> >>>>>>> think, the cleanest and most flexible would be if we remove 
>> >> >> >>>>>>> "error"
>> >> >> >>>>>>> (it's confusing and redundant anyway) and "failureReason", and 
>> >> >> >>>>>>> instead
>> >> >> >>>>>>> add a "problems" JSON Object, in which the keys are the field 
>> >> >> >>>>>>> names,
>> >> >> >>>>>>> and the value are the error descriptions. It's like some 
>> >> >> >>>>>>> simple form
>> >> >> >>>>>>> processing answer.
>> >> >> >>>>>>> 
>> >> >> >>>>>>> And then there are the HTTP 5xx errors. There I think we can 
>> >> >> >>>>>>> get away
>> >> >> >>>>>>> with an "errorCode" and an "errorDescription" for now.
>> >> >> >>>>>>> 
>> >> >> >>>>>>> -- 
>> >> >> >>>>>>> Thanks,
>> >> >> >>>>>>> Daniel Dekany
>> >> >> >>>>>>> 
>> >> >> >>>>>>>> Based on the error flag we can decide what to display. Sorry 
>> >> >> >>>>>>>> If I
>> >> >> >>>>>>>> am taking a longer time to get hold of things.
>> >> >> >>>>>>>> Pradeep.
>> >> >> >>>>>>>>> Date: Sat, 29 Aug 2015 14:34:58 +0200
>> >> >> >>>>>>>>> From: [email protected]
>> >> >> >>>>>>>>> To: [email protected]
>> >> >> >>>>>>>>> Subject: Re: Rest Service for FreeMarkerOnline
>> >> >> >>>>>>>>> 
>> >> >> >>>>>>>>> There are some cases whose distinction can be interesting 
>> >> >> >>>>>>>>> for a UI
>> >> >> >>>>>>>>> (without much research, so it might not be accurate):
>> >> >> >>>>>>>>> - Successful Web service call results:
>> >> >> >>>>>>>>>  - Template output, no template or data-model errors
>> >> >> >>>>>>>>>  - Template output that's cut at a point as it was too long
>> >> >> >>>>>>>>>  - Failed data model building
>> >> >> >>>>>>>>>  - Failed template execution (position can be interesting 
>> >> >> >>>>>>>>> here on the
>> >> >> >>>>>>>>>    long run)
>> >> >> >>>>>>>>> - Service errors: I guess we just need the error message 
>> >> >> >>>>>>>>> here.
>> >> >> >>>>>>>>> - A bit of both: Long running template timeout. Usually it's 
>> >> >> >>>>>>>>> the
>> >> >> >>>>>>>>>  user's mistake... usually.
>> >> >> >>>>>>>>> 
>> >> >> >>>>>>>>> The *template* used by the current UI doesn't care about 
>> >> >> >>>>>>>>> such details,
>> >> >> >>>>>>>>> but what it displays was already assembled by code that also 
>> >> >> >>>>>>>>> belongs
>> >> >> >>>>>>>>> to the UI (i.e., to the JavaScript that processes the JSON 
>> >> >> >>>>>>>>> response).
>> >> >> >>>>>>>>> That logic is certainly simplistic currently, but then, UI-s 
>> >> >> >>>>>>>>> can
>> >> >> >>>>>>>>> change any time (and multiple different UI-s can co-exist), 
>> >> >> >>>>>>>>> while Web
>> >> >> >>>>>>>>> service API-s less so.
>> >> >> >>>>>>>>> 
>> >> >> >>>>>>>>> 
>> >> >> >>>>>>>>> Saturday, August 29, 2015, 1:19:41 PM, Pradeep Murugesan 
>> >> >> >>>>>>>>> wrote:
>> >> >> >>>>>>>>> 
>> >> >> >>>>>>>>>> Hi Daniel,
>> >> >> >>>>>>>>>> The thing I am trying to understand here is the need for 
>> >> >> >>>>>>>>>> all the 3
>> >> >> >>>>>>>>>> fields of FreeMarkerServiceResponse for the UI.
>> >> >> >>>>>>>>>> FreeMarkerOnline view while rendering the template just 
>> >> >> >>>>>>>>>> uses the 2 parameters.
>> >> >> >>>>>>>>>> 1. Is there an error in the result 2. what is the error 
>> >> >> >>>>>>>>>> message
>> >> >> >>>>>>>>>> <#if hasResult> <div class="resultContainer">           
>> >> >> >>>>>>>>>> <label
>> >> >> >>>>>>>>>> for="result">Result</label>              <textarea 
>> >> >> >>>>>>>>>> id="result"
>> >> >> >>>>>>>>>> class="pure-input-1 source-code <#if errorResult> 
>> >> >> >>>>>>>>>> error</#if>"
>> >> >> >>>>>>>>>> readonly>${result}</textarea>      </div></#if>
>> >> >> >>>>>>>>>> 
>> >> >> >>>>>>>>>> So assuming we too need the same from Ajax requests
>> >> >> >>>>>>>>>> I am returning the result & the error is found based on the 
>> >> >> >>>>>>>>>> status code of the response.
>> >> >> >>>>>>>>>> Kindly let me know your thoughts.
>> >> >> >>>>>>>>>> Pradeep.
>> >> >> >>>>>>>>>> 
>> >> >> >>>>>>>>>> 
>> >> >> >>>>>>>>>> 
>> >> >> >>>>>>>>>> 
>> >> >> >>>>>>>>>>> Date: Fri, 28 Aug 2015 22:51:52 +0200
>> >> >> >>>>>>>>>>> From: [email protected]
>> >> >> >>>>>>>>>>> To: [email protected]
>> >> >> >>>>>>>>>>> Subject: Re: Rest Service for FreeMarkerOnline
>> >> >> >>>>>>>>>>> 
>> >> >> >>>>>>>>>>> The response should be JSON because we will need a few 
>> >> >> >>>>>>>>>>> separate fields
>> >> >> >>>>>>>>>>> there. If you look at FreeMarkerServiceResponse, you will 
>> >> >> >>>>>>>>>>> see 3
>> >> >> >>>>>>>>>>> candidates, but then you will find more, as the thrown 
>> >> >> >>>>>>>>>>> exceptions also
>> >> >> >>>>>>>>>>> carries information that's needed for the UI, as you can 
>> >> >> >>>>>>>>>>> see in
>> >> >> >>>>>>>>>>> FreeMarkerService.calculateTemplateOutput.
>> >> >> >>>>>>>>>>> 
>> >> >> >>>>>>>>>>> -- 
>> >> >> >>>>>>>>>>> Thanks,
>> >> >> >>>>>>>>>>> Daniel Dekany
>> >> >> >>>>>>>>>>> 
>> >> >> >>>>>>>>>>> 
>> >> >> >>>>>>>>>>> Friday, August 28, 2015, 9:57:58 PM, Pradeep Murugesan 
>> >> >> >>>>>>>>>>> wrote:
>> >> >> >>>>>>>>>>> 
>> >> >> >>>>>>>>>>>> Sure Daniel,
>> >> >> >>>>>>>>>>>>    I will change as per your comments.
>> >> >> >>>>>>>>>>>> A quick clarification regarding the json response can be 
>> >> >> >>>>>>>>>>>> like following ?
>> >> >> >>>>>>>>>>>> { result: <output> }
>> >> >> >>>>>>>>>>>> Pradeep.
>> >> >> >>>>>>>>>>>> 
>> >> >> >>>>>>>>>>>>> Date: Fri, 28 Aug 2015 21:26:58 +0200
>> >> >> >>>>>>>>>>>>> From: [email protected]
>> >> >> >>>>>>>>>>>>> To: [email protected]
>> >> >> >>>>>>>>>>>>> Subject: Re: Rest Service for FreeMarkerOnline
>> >> >> >>>>>>>>>>>>> 
>> >> >> >>>>>>>>>>>>> Friday, August 28, 2015, 7:53:45 PM, Pradeep Murugesan 
>> >> >> >>>>>>>>>>>>> wrote:
>> >> >> >>>>>>>>>>>>> 
>> >> >> >>>>>>>>>>>>>> Hi Daniel,
>> >> >> >>>>>>>>>>>>>>  I have made the rest service up @ a new path /compile
>> >> >> >>>>>>>>>>>>>> The service takes the following json as input
>> >> >> >>>>>>>>>>>>>> {    "template": "Hello ${user}",    "dataModel": 
>> >> >> >>>>>>>>>>>>>> "user=pradeep"}
>> >> >> >>>>>>>>>>>>>> and then compiles the template and dataModel and 
>> >> >> >>>>>>>>>>>>>> returns the output.
>> >> >> >>>>>>>>>>>>>> https://github.com/pradeepmurugesan/freemarker-online/commit/10de59ac0db0bf0f79ab28214f50c851a5610e20
>> >> >> >>>>>>>>>>>>>> 
>> >> >> >>>>>>>>>>>>>> Please review the above commit and let me know if its 
>> >> >> >>>>>>>>>>>>>> ok.
>> >> >> >>>>>>>>>>>>> 
>> >> >> >>>>>>>>>>>>> The response will have to be JSON as well (not 
>> >> >> >>>>>>>>>>>>> TEXT_PLAIN), but I
>> >> >> >>>>>>>>>>>>> guess that was planned later.
>> >> >> >>>>>>>>>>>>> 
>> >> >> >>>>>>>>>>>>> The usage of the "compile" term is confusing here, as 
>> >> >> >>>>>>>>>>>>> you actually
>> >> >> >>>>>>>>>>>>> parse (aka. compile) and then "process" (aka. execute) 
>> >> >> >>>>>>>>>>>>> here. The last
>> >> >> >>>>>>>>>>>>> naturally implies the first. So I guess it should be, 
>> >> >> >>>>>>>>>>>>> like, "run" or
>> >> >> >>>>>>>>>>>>> "execute".
>> >> >> >>>>>>>>>>>>> 
>> >> >> >>>>>>>>>>>>> Also, all the web service operations should go under 
>> >> >> >>>>>>>>>>>>> /api/, and the UI
>> >> >> >>>>>>>>>>>>> outside it.
>> >> >> >>>>>>>>>>>>> 
>> >> >> >>>>>>>>>>>>>> Will
>> >> >> >>>>>>>>>>>>>> Integrate with the UI. I have a questions though
>> >> >> >>>>>>>>>>>>>> 1. Should I modify  in the same path as  "/" or keeping 
>> >> >> >>>>>>>>>>>>>> it in a
>> >> >> >>>>>>>>>>>>>> separate path like "/compile" is fine ?
>> >> >> >>>>>>>>>>>>> 
>> >> >> >>>>>>>>>>>>> The UI addresses should remain /, and the current web 
>> >> >> >>>>>>>>>>>>> service should
>> >> >> >>>>>>>>>>>>> be under /api/run or something, I think.
>> >> >> >>>>>>>>>>>>> 
>> >> >> >>>>>>>>>>>>>> Also I will write unit tests once we finalize the path.
>> >> >> >>>>>>>>>>>>>> Pradeep.                                          
>> >> >> >>>>>>>>>>>>> 
>> >> >> >>>>>>>>>>>>> -- 
>> >> >> >>>>>>>>>>>>> Thanks,
>> >> >> >>>>>>>>>>>>> Daniel Dekany
>> >> >> >>>>>>>>>>>>> 
>> >> >> >>>>>>>>>>>> 
>> >> >> >>>>>>>>>>> 
>> >> >> >>>>>>>>>> 
>> >> >> >>>>>>>>> 
>> >> >> >>>>>>>>> -- 
>> >> >> >>>>>>>>> Thanks,
>> >> >> >>>>>>>>> Daniel Dekany
>> >> >> >>>>> 
>> >> >> >>>> 
>> >> >> >>> 
>> >> >> >>> -- 
>> >> >> >>> Thanks,
>> >> >> >>> Daniel Dekany
>> >> >> >>> 
>> >> >> >> 
>> >> >> > 
>> >> >> > -- 
>> >> >> > Thanks,
>> >> >> > Daniel Dekany
>> >> >> > 
>> >> >                                           
>> >> 
>> >> -- 
>> >> Thanks,
>> >>  Daniel Dekany
>> >> 
>> >                                           
>> 
>> -- 
>> Thanks,
>>  Daniel Dekany
>> 
>                                           

-- 
Thanks,
 Daniel Dekany

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