Class: Hydra::Derivatives::TempfileService
- Inherits:
-
Object
- Object
- Hydra::Derivatives::TempfileService
- Defined in:
- lib/hydra/derivatives/services/tempfile_service.rb
Instance Attribute Summary collapse
-
#source_file ⇒ Object
readonly
Returns the value of attribute source_file.
Class Method Summary collapse
Instance Method Summary collapse
- #default_tempfile(&_block) ⇒ Object
- #filename_for_characterization ⇒ Object
-
#initialize(source_file) ⇒ TempfileService
constructor
A new instance of TempfileService.
- #tempfile(&block) ⇒ Object
Constructor Details
#initialize(source_file) ⇒ TempfileService
Returns a new instance of TempfileService.
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# File 'lib/hydra/derivatives/services/tempfile_service.rb', line 11 def initialize(source_file) @source_file = source_file end |
Instance Attribute Details
#source_file ⇒ Object (readonly)
Returns the value of attribute source_file.
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# File 'lib/hydra/derivatives/services/tempfile_service.rb', line 9 def source_file @source_file end |
Class Method Details
.create(file, &block) ⇒ Object
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# File 'lib/hydra/derivatives/services/tempfile_service.rb', line 5 def self.create(file, &block) new(file).tempfile(&block) end |
Instance Method Details
#default_tempfile(&_block) ⇒ Object
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# File 'lib/hydra/derivatives/services/tempfile_service.rb', line 23 def default_tempfile(&_block) Tempfile.open(filename_for_characterization) do |f| f.binmode if source_file.content.respond_to? :read f.write(source_file.content.read) else f.write(source_file.content) end source_file.content.rewind if source_file.content.respond_to? :rewind f.rewind yield(f) end end |
#filename_for_characterization ⇒ Object
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# File 'lib/hydra/derivatives/services/tempfile_service.rb', line 37 def filename_for_characterization registered_mime_type = MIME::Types[source_file.mime_type].first Logger.warn "Unable to find a registered mime type for #{source_file.mime_type.inspect} on #{source_file.uri}" unless registered_mime_type extension = registered_mime_type ? ".#{registered_mime_type.extensions.first}" : '' version_id = 1 # TODO: fixme m = %r{/([^/]*)$}.match(source_file.uri) ["#{m[1]}-#{version_id}", extension.to_s] end |
#tempfile(&block) ⇒ Object
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# File 'lib/hydra/derivatives/services/tempfile_service.rb', line 15 def tempfile(&block) if source_file.respond_to? :to_tempfile source_file.send(:to_tempfile, &block) elsif source_file.has_content? default_tempfile(&block) end end |