asset_store.rb in cloud-crowd-0.2.0

- old
+ new
@@ -1,34 +1,34 @@
 require 'tmpdir'
 
 module CloudCrowd
 
   # The AssetStore provides a common API for storing files and returning URLs 
-  # that can access them. In production this will be S3 but in development 
-  # it may be the filesystem.
+  # that can access them. At the moment, the files can be saved to either S3, or
+  # the local filesystem. You shouldn't need to use the AssetStore directly -- 
+  # Action's +download+ and +save+ methods use it behind the scenes.
   #
-  # You shouldn't need to use the AssetStore directly -- Action's +download+
-  # and +save+ methods use it behind the scenes.
+  # To implement a new back-end for the AssetStore, you must provide 
+  # <tt>save(local_path, save_path)</tt>, <tt>cleanup(job)</tt>, and optionally, 
+  # a <tt>setup</tt> method that will be called once at initialization.
   class AssetStore
     
     autoload :S3Store,         'cloud_crowd/asset_store/s3_store'
     autoload :FilesystemStore, 'cloud_crowd/asset_store/filesystem_store'
-    
-    LOCAL_STORAGE_PATH = '/tmp/cloud_crowd_storage'
-    
+        
     # Configure the AssetStore with the specific storage implementation 
     # specified by 'storage' in <tt>config.yml</tt>.
     case CloudCrowd.config[:storage]
     when 's3'         then include S3Store
     when 'filesystem' then include FilesystemStore
     else raise Error::StorageNotFound, "#{CloudCrowd.config[:storage]} is not a valid storage back end"
     end
     
     # Creating the AssetStore ensures that its scratch directory exists.
     def initialize
-      @use_auth = CloudCrowd.config[:use_s3_authentication]
       FileUtils.mkdir_p temp_storage_path unless File.exists? temp_storage_path
       raise Error::StorageNotWritable, "#{temp_storage_path} is not writable" unless File.writable?(temp_storage_path)
+      setup if respond_to? :setup
     end
     
     # Get the path to CloudCrowd's temporary local storage. All actions run
     # in subdirectories of this.
     def temp_storage_path
\ No newline at end of file