Hi Naresh,
I got the json-from-jaxb project and edited the JAXBContentResolver as:
this.context = new
JSONJAXBContext(JSONConfiguration.mapped().rootUnwrapping(false).build(),
cTypes);
This worked and I now get the root element in the json :) Awesome!
The code in this project also looks much simpler to understand than the code
generated using the "RESTful Web Services using Entity classes" in Netbeans.
Unless there was a way to understand what the whole automagic was and how a
Provider class could be provided.
Thanks, I'll look at more samples and learn from them.
Gautam
Naresh-2 wrote:
>
> Gautam Arora wrote:
>> Well, thats true but in the link:
>> http://weblogs.java.net/blog/caroljmcdonald/archive/2008/08/a_restful_pet_c_1.html
>> on the table "Example json data"
>> It shows the generation of the root element.
>>
>> You could be correct that as such, the author expected this to be the
>> behavior and had no issues with parsing it in a dojo grid but I ran into
>> issues with YUI :)
>> I'll look into how to define and ContextProvider class and set the
>> rootUnwrapping=false.
>>
>> Early days for me using Jersey. Thanks for your help.
>> Incase you have some links/pointers to tutorials/samples that address
>> this
>> generation of root element, do let me know. I could look and learn.
>>
> Please have a look at the Jersey samples [jsonp] and [json-from-jaxb].
>
> [jsonp]
> http://download.java.net/maven/2/com/sun/jersey/samples/jsonp/1.0.2/jsonp-1.0.2-project.zip
> [json-from-jaxb]
> http://download.java.net/maven/2/com/sun/jersey/samples/json-from-jaxb/1.0.2/json-from-jaxb-1.0.2-project.zip
>
> -Naresh
>
>> Thanks,
>> Gautam
>>
>>
>> Srinivas Naresh Bhimisetty wrote:
>>
>>> May be the sample is not using any @Provider annotated class, because
>>> its showing the data in default JSON format. But as you said, your
>>> requirement is to get the root element (i.e., items) too. For this you
>>> will have to define a ContextProvider class, and set the
>>> "rootUnwrapping" to "false" (the default is "true").
>>>
>>> Hope this helps,
>>> Naresh
>>>
>>> Gautam Arora wrote:
>>>
>>>> Naresh,
>>>> Yes you seem to be pointing in the right direction.
>>>> To start with, the pet catalog app does not have any class with a
>>>> @Provider
>>>> annotation
>>>> also, my logs are:
>>>> ---------------------------------------------------------------------------------
>>>> etc etc
>>>> Scanning for root resource and provider classes in the paths:
>>>> /Users/gautam/NetBeansProjects/catalogitem/build/web/WEB-INF/lib
>>>> /Users/gautam/NetBeansProjects/catalogitem/build/web/WEB-INF/classes
>>>> Root resource classes found:
>>>> class service.ItemsResource
>>>> Provider classes found:
>>>> ---------------------------------------------------------------------------------
>>>>
>>>> There is no Provider class listed after the statement "Provider classes
>>>> found" and I was finding this weird as to why nothing is displayed
>>>> after
>>>> that line.
>>>>
>>>> This is as per the code available at:
>>>> https://techdayscode.dev.java.net/files/documents/7105/106278/catalog.zip
>>>>
>>>> for the RESTful Pet Catalog app:
>>>> http://weblogs.java.net/blog/caroljmcdonald/archive/2008/08/a_restful_pet_c_1.html
>>>>
>>>> To get the project to this state, all one has to do is:
>>>> 1. Generate Entity classes from database (Table Item or anything else)
>>>> 2. Generate Restful Web Services from Entity classes
>>>>
>>>> The "Example JSON Data" section of this tutorial does seem to show that
>>>> the
>>>> "items" element should be generated and mentions nothing about a
>>>> @Provider
>>>> annotation.
>>>>
>>>> Could you suggest any more investigative steps or have a look at the
>>>> code
>>>> in
>>>> the above link.
>>>>
>>>> Thanks,
>>>> Gautam
>>>>
>>>>
>>>>
>>>> Srinivas Naresh Bhimisetty wrote:
>>>>
>>>>
>>>>> Hi Gautam,
>>>>>
>>>>> I doubt if your Provider class is being detected or not, are you
>>>>> able
>>>>> to see some message like:
>>>>>
>>>>> ------------------------------------------------------------
>>>>> INFO: Provider classes found:
>>>>> class /yourContextResolver
>>>>> -------------------------------------------------------------
>>>>>
>>>>> /in the logs.
>>>>>
>>>>> -Naresh
>>>>>
>>>>>
>>>>> Gautam Arora wrote:
>>>>>
>>>>>
>>>>>> Hi Naresh,
>>>>>>
>>>>>> I set rootUnwrapping to false, but still same output as before i.e.
>>>>>> root
>>>>>> element is dropped
>>>>>>
>>>>>> Let me know if you have any more ideas on what I could try, I'll try
>>>>>> them
>>>>>> in
>>>>>> realtime (well, almost!) :)
>>>>>>
>>>>>> Thanks,
>>>>>> Gautam
>>>>>>
>>>>>>
>>>>>> Srinivas Naresh Bhimisetty wrote:
>>>>>>
>>>>>>
>>>>>>
>>>>>>> Hi Gautam,
>>>>>>>
>>>>>>> could you try setting rootUnwrapping to 'false' instead, i.e.,
>>>>>>>
>>>>>>> JAXBContext context = new
>>>>>>> JSONJAXBContext(JSONConfiguration.mapped().rootUnwrapping(false).arrays("items").build(),type);
>>>>>>>
>>>>>>> Hope this helps,
>>>>>>> Naresh
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> Gautam Arora wrote:
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>> update:
>>>>>>>>
>>>>>>>> 1. I moved to Jersey 1.0.2 (downloaded it and added to netbeans)
>>>>>>>> 2. Edited the UriResolver.resolve() method
>>>>>>>> original: JAXBContext context = JAXBContext.newInstance(type);
>>>>>>>> modified: JAXBContext context = new
>>>>>>>> JSONJAXBContext(JSONConfiguration.mapped().rootUnwrapping(true).arrays("items").build(),type);
>>>>>>>>
>>>>>>>> This was as per the steps given at
>>>>>>>> http://blogs.sun.com/japod/entry/configuring_json_for_restful_web
>>>>>>>>
>>>>>>>> But the root element is still getting dropped. Any tips on how to
>>>>>>>> make
>>>>>>>> this
>>>>>>>> work with this app?
>>>>>>>>
>>>>>>>> Gautam
>>>>>>>>
>>>>>>>>
>>>>>>>> Gautam Arora wrote:
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>> Hi,
>>>>>>>>> I'm following the RESTful Pet Catalog tutorial from
>>>>>>>>> http://weblogs.java.net/blog/caroljmcdonald/archive/2008/08/a_restful_pet_c_1.html
>>>>>>>>>
>>>>>>>>> The expected JSON response (as per the tutorial is)
>>>>>>>>> http://localhost:8080/catalog/resources/items/
>>>>>>>>>
>>>>>>>>> {"items":{"@uri":"http://localhost:8080/catalog/resources/items","item":[{
>>>>>>>>> etc etc
>>>>>>>>>
>>>>>>>>> but I get the response as:
>>>>>>>>> {"@uri":"http://localhost:8080/catalog/resources/items","item":[{
>>>>>>>>> etc
>>>>>>>>> etc
>>>>>>>>>
>>>>>>>>> The "items" label is dropped.
>>>>>>>>> I've read here on forum posts that say that dropping off the root
>>>>>>>>> element
>>>>>>>>> is a desired feature and with newer releases of jersey it should
>>>>>>>>> be
>>>>>>>>> fixed(/configurable?)
>>>>>>>>>
>>>>>>>>> I've developed the app myself and also tested the same app by
>>>>>>>>> downloading
>>>>>>>>> it and running it and and running into the same issue.
>>>>>>>>>
>>>>>>>>> I'm using Jersey 1.0. Is this issue fixed in 1.0.2?
>>>>>>>>>
>>>>>>>>> Whats the best way to make jersey1.0 generate the "items" label
>>>>>>>>> for
>>>>>>>>> this
>>>>>>>>> app? I've read on posts that we need to add a property for the
>>>>>>>>> json
>>>>>>>>> unwrapping but cant figure out where/how to put it in the pet
>>>>>>>>> catalog
>>>>>>>>> sample app.
>>>>>>>>>
>>>>>>>>> I need this as I'm using YUI which expects this and throws an
>>>>>>>>> invalid
>>>>>>>>> label error otherwise
>>>>>>>>> As per the tutorial, having the label is the expected behavior, so
>>>>>>>>> any
>>>>>>>>> reasons why I could be missing it?
>>>>>>>>>
>>>>>>>>> Thanks,
>>>>>>>>> Gautam
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
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>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>
>>>>>>
>>>>>>
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>>>>>
>>>>>
>>>>>
>>>>
>>>>
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