Hi Charles,
As you said, the way to do that is by configuring Guice to provide
your implementation of the ImageToOperatingSystem, using a linked
binding [1].
You will first have to subclass the ImageToOperatingSystem class and
put your custom logic there (it has to be a subclass, as you won't be
able to bind directly the generic function type as there is already a
binding for it and Guice does not allow duplicated bindings).
Then you just to create a Guice module that configures the binding.
Something like:
class CustomGuiceBindings extends AbstractModule {
@Override
protected void configure()
bind(ImageToOperatingSystem).to(YourCustomImageToOperatingSystem).in(SINGLETON);
}
}
And add it to the list of modules you provide when creating the context.
HTH!
Ignasi
[1] https://code.google.com/p/google-guice/wiki/LinkedBindings
On 4 June 2014 19:17, Charles Paclat <[email protected]> wrote:
> I am using JCloud with OpenStack and the Nova APIs. I am finding that the
> templates that perform matching on the image meta data are not quite
> working for my use cases. I would like to see about enhancing the
> ImageToOperatingSystem function in my client to be able to parse some
> additional meta data tags on our deployment when they are available. I
> would also like to support CentOS in the matching for OpenStack.
>
> I am a bit new to Guice, but it seems to me there must be a way to replace
> the ImageToOperatingSystem function with a custom one.
>
> Is this advisable? Has anyone else tried to customize Jclouds Nova
> provider in this way? Is there an example that I can refer to?
