Re: Can you use type conversion with JSONInterceptor?

[Lukasz Lenart]

Super cool, thanks :)

2016-12-02 11:40 GMT+01:00 Miguel Almeida :
> Thank you Lukasz!
>
> I will check if/how we can inject the converter there. If we manage to
> get it working in a way that helps the ticket resolution I'll also post
> the information there.
>
>
>
> On Sex, 2016-12-02 at 09:50 +0100, Lukasz Lenart wrote:
>
>> Hi,
>>
>> JSON plugin uses its own conversation mechanism, check JSONPopulator
>> but I think it should be possible to inject XWorkConverter and use it
>> to convert objects - this requires implementing your own
>> JSONPopulator.
>>
>> There is a task to do it so it should happen in Struts 2.5 ;-)
>> https://issues.apache.org/jira/browse/WW-3364
>>
>>
>> Regards

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Re: Can you use type conversion with JSONInterceptor?

[Miguel Almeida]

Thank you Lukasz!

I will check if/how we can inject the converter there. If we manage to
get it working in a way that helps the ticket resolution I'll also post
the information there.



On Sex, 2016-12-02 at 09:50 +0100, Lukasz Lenart wrote:

> Hi,
> 
> JSON plugin uses its own conversation mechanism, check JSONPopulator
> but I think it should be possible to inject XWorkConverter and use it
> to convert objects - this requires implementing your own
> JSONPopulator.
> 
> There is a task to do it so it should happen in Struts 2.5 ;-)
> https://issues.apache.org/jira/browse/WW-3364
> 
> 
> Regards

Re: Can you use type conversion with JSONInterceptor?

[Lukasz Lenart]

Hi,

JSON plugin uses its own conversation mechanism, check JSONPopulator
but I think it should be possible to inject XWorkConverter and use it
to convert objects - this requires implementing your own
JSONPopulator.

There is a task to do it so it should happen in Struts 2.5 ;-)
https://issues.apache.org/jira/browse/WW-3364


Regards
-- 
Łukasz
+ 48 606 323 122 http://www.lenart.org.pl/

2016-12-01 20:07 GMT+01:00 Miguel Almeida :
> Imagine SearchAction{
>
> private List evaluatedRecords;
> }
>
> Record is an interface so to get auto-wiring to work you'd usually
> set-up a
>
> SearchAction-conversion.properties:
> KeyProperty_evaluatedRecords=id
> Element_evaluatedRecords=com.bibliovigilance.model.RecordImpl
> CreateIfNull_evaluatedRecords=true
>
>
> I now want to create an Ajax post on this action. I tried the following:
>
> var evaluatedRecords = [
>  {"id": "10672"}
>  ]
>
>  var json_parameters = {evaluatedRecords:
> evaluatedRecords};
>
> $.ajax({
>   url: 'SearchmarkSelectedArticlesJSON.action',
>   cache: false,
>   contentType: 'application/json',
>   data: JSON.stringify(json_parameters),
>   type: "POST"
> });
>
> I believe I need to set-up the JSON interceptor on my action, so I
> added:
>  method="markSelectedArticles">
> 
> 
>
> The problem is that this interceptor doesn't seem to be using the
> -conversion.properties, so it throws an error when it tries to
> instantiate the Record class:
>
> java.lang.InstantiationException: com.bibliovigilance.model.Record
> at java.lang.Class.newInstance(Class.java:368)
> at
> org.apache.struts2.json.JSONPopulator.convertToCollection(JSONPopulator.java:250)
>
>
> I also tried removing the Record type in the List ( List
> evaluatedRecords). But in this case the JSON deserialization of the
> above mentioned ajax call will create a List evaluatedRecords with 1
> element, but that element is a Map (I didn't investigate, but I suppose
> it'll have id in the key and 10672 in the value).
>
> How would we configure this correctly? Is it possible for the JSON
> interceptor to be aware of the -conversion.properties? If not, what
> alternatives do you envision?
>
> Thanks!
>
> Miguel

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Can you use type conversion with JSONInterceptor?

[Miguel Almeida]

Imagine SearchAction{

private List evaluatedRecords;
}

Record is an interface so to get auto-wiring to work you'd usually
set-up a

SearchAction-conversion.properties:
KeyProperty_evaluatedRecords=id
Element_evaluatedRecords=com.bibliovigilance.model.RecordImpl
CreateIfNull_evaluatedRecords=true


I now want to create an Ajax post on this action. I tried the following:

var evaluatedRecords = [
 {"id": "10672"}
 ]
 
 var json_parameters = {evaluatedRecords:
evaluatedRecords};

$.ajax({
  url: 'SearchmarkSelectedArticlesJSON.action',
  cache: false,
  contentType: 'application/json',
  data: JSON.stringify(json_parameters),
  type: "POST"
});

I believe I need to set-up the JSON interceptor on my action, so I
added:




The problem is that this interceptor doesn't seem to be using the
-conversion.properties, so it throws an error when it tries to
instantiate the Record class:

java.lang.InstantiationException: com.bibliovigilance.model.Record
at java.lang.Class.newInstance(Class.java:368)
at
org.apache.struts2.json.JSONPopulator.convertToCollection(JSONPopulator.java:250)


I also tried removing the Record type in the List ( List
evaluatedRecords). But in this case the JSON deserialization of the
above mentioned ajax call will create a List evaluatedRecords with 1
element, but that element is a Map (I didn't investigate, but I suppose
it'll have id in the key and 10672 in the value).

How would we configure this correctly? Is it possible for the JSON
interceptor to be aware of the -conversion.properties? If not, what
alternatives do you envision?

Thanks!

Miguel