Class: Hyrax::ValkyriePersistDerivatives
- Inherits:
-
Hydra::Derivatives::PersistOutputFileService
- Object
- Hydra::Derivatives::PersistOutputFileService
- Hyrax::ValkyriePersistDerivatives
- Defined in:
- app/services/hyrax/valkyrie_persist_derivatives.rb
Class Method Summary collapse
-
.call(stream, directives) ⇒ Object
Persists a derivative using the defined Valkyrie storage adapter.
-
.fileset_id_from_path(path) ⇒ String
The filepath will look something like /app/samvera/hyrax-webapp/derivatives/95/93/tv/12/3-thumbnail.jpeg and we want to extract the FileSet id, which in this case would be 9593tv123.
Class Method Details
.call(stream, directives) ⇒ Object
Persists a derivative using the defined Valkyrie storage adapter
This Service conforms to the signature of ‘Hydra::Derivatives::PersistOutputFileService`. This service is a Valkyrized alternative to the default Hydra::Derivatives::PersistOutputFileService. This service will always update existing and does not do versioning of persisted files.
to replace the default AF derivative pipeline, set
```
Hydra::Derivatives.config.output_file_service = Hyrax::ValkyriePersistDerivatives
Hydra::Derivatives.config.source_file_service = Hyrax::LocalFileService
```
19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 |
# File 'app/services/hyrax/valkyrie_persist_derivatives.rb', line 19 def self.call(stream, directives) filepath = URI(directives.fetch(:url)).path fileset_id = fileset_id_from_path(filepath) fileset = Hyrax..query_service.find_by(id: fileset_id) # Valkyrie storage adapters will typically expect an IO-like object that # responds to #path -- here we only have a StringIO, so some # transformation is in order tmpfile = Tempfile.new(fileset_id, encoding: 'ascii-8bit') tmpfile.write stream.read Rails.logger.debug "Uploading thumbnail for FileSet #{fileset_id} as #{filepath}" Hyrax.config.derivatives_storage_adapter.upload( file: tmpfile, original_filename: filepath, resource: fileset ) end |
.fileset_id_from_path(path) ⇒ String
The filepath will look something like /app/samvera/hyrax-webapp/derivatives/95/93/tv/12/3-thumbnail.jpeg and we want to extract the FileSet id, which in this case would be 9593tv123
44 45 46 47 48 |
# File 'app/services/hyrax/valkyrie_persist_derivatives.rb', line 44 def self.fileset_id_from_path(path) path.sub(Hyrax.config.derivatives_path.to_s, "") .sub(/-[^\/]+\..*$/, "") .delete("/") end |