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Re: Correct way to tell if a path is to a .bundle?
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Re: Correct way to tell if a path is to a .bundle?


  • Subject: Re: Correct way to tell if a path is to a .bundle?
  • From: Brad Goss <email@hidden>
  • Date: Sat, 26 Sep 2009 00:55:16 -0400

Rick,

You could also use:
NSBundle pluginBundle = [NSBundle bundleWithPath: fullPath];

This will return an NSBundle object as your require or nil if fullPath does not identify an accessible bundle directory. So...
if ( pluginBundle == nil ) ... then it is not a valid bundle.


You will also want to create a protocol that the plugin's Principal class must conform to. So, a little snippet here for you that will load a valid bundle that conforms to MyPluginProtocol.

- (id)loadBundleNamed:(NSString*)bundleName {
Class exampleClass;
id newInstance;
NSString *bundlePath = [NSString stringWithFormat:@"%@/ %@.mypluginext",[self pluginDirectory],bundleName];
NSBundle *bundleToLoad = [NSBundle bundleWithPath:bundlePath];

if (exampleClass = [bundleToLoad principalClass]) {
if ( [[bundleToLoad principalClass] conformsToProtocol:@protocol (MyPluginProtocol)] ) {
newInstance = [[exampleClass alloc] initWithPlugInController: [PluginController sharedManager] bundle:[NSBundle mainBundle]];
// initWithPluginController is a method defined by MyPluginProtocol... so I am safe to use it
return [newInstance autorelease];
}
}

return nil;
}


Brad Goss
email@hidden

On 2009-09-24, at 21:41 , Rick Mann wrote:

I'm scanning a directory for plugins for my app. Given a path, what's the right way to tell if it's a path to a bundle?

TIA
--
Rick

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