JSON how to set configuration inside code

[Tridib Samanta]

Hi Experts,

 

I am trying to switch the value of   deep copy mode from code. How can I set the configuration for it inside code?

 

ConfigurationHolder.config.grails.converters.json.default.deep = true/false does not work :(

 

Looking for your answers...

 

Thanks

Tridib

On 12/01/2011, at 8:44 AM, Tridib Samanta wrote:

I am trying to switch the value of   deep copy mode from code. How can I set the configuration for it inside code?

 

ConfigurationHolder.config.grails.converters.json.default.deep = true/false does not work :(

Switching this at runtime is not going to work because it is read once at startup.

http://github.com/grails/grails-core/tree/master/src/java/org/codehaus/groovy/grails/web/converters/configuration/ConvertersConfigurationInitializer.java#L85-85

It turns out that there is a completely undocumented set of features built in to the converter mechanism that will let you do what you want. You are going to have to read through the source though and work it out.

Some starting points are:

http://github.com/grails/grails-core/tree/master/src/java/grails/converters/JSON.java#L407

That allows you to create a threadlocal config.

To create a config, take a look at:

https://github.com/grails/grails-core/blob/master/src/java/org/codehaus/groovy/grails/web/converters/configuration/ConvertersConfigurationInitializer.java#L111

Instead of registering a DeepDomainClassMarshaller, you want to register DomainClassMarshaller.

Good luck.