Hi,
This is following the proposal done here some time ago:
http://markmail.org/message/nnybto3mluvp2rov
Since we now have a generic Script notion we need to revisit it in
that light. Also we really need to implement it now since more and
more components are put in the velocity context (office importer,
syntax factory, etc) and we need to bring some order.
Here's a new generic proposal:
Short term
========
* The variable "services" is bound in the script context. For ex in
Velocity: $services
* The Services object (ScriptServiceManager) has a ScriptService
get(String serviceName) method which returns the service
* We use the namespace: services.<module name>.<method>. Each module
provides only one service entry point.
* ScriptService interface (empty interface) represents a service to
be bound in the context
* ScriptServiceManager.get() looks for all components of role
ScriptService and returns the component matching the the name as the
component hint.
Ex:
@Component("mymodule")
public class MyModuleScriptService implements ScriptService,
MyModuleBusinessInterface
{
public void myMethod() {}
}
In script:
{{velocity}}
$services.mymodule.myMethod
{{/velocity}}
Medium term
==========
* We handle @authorization(Authorization.PROGRAMMING) annotations to
check for access rights. To do this in ScriptServiceManager.get() we
use a Dynamic Proxy to implement MyModuleBusinessInterface (we
probably need a ScriptService.getInterface() method to make it
unambiguous). The Dynamic Proxy checks the annotation before proxying
to the real object.
WDYT?
Thanks
-Vincent
PS: This is to answer Sergiu's question about where is
getAvailableParserSyntaxes() from my other mail... ;) Answer: It would
be in RenderingScriptService.
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