Class: Hyrax::Actors::FileActor

Inherits:
Object
  • Object
show all
Defined in:
app/actors/hyrax/actors/file_actor.rb

Overview

Note:

Spawns asynchronous jobs

Actions for a file identified by file_set and relation (maps to use predicate)

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(file_set, relation, user) ⇒ FileActor

Returns a new instance of FileActor.

Parameters:

  • file_set (FileSet) —

    the parent FileSet

  • relation (Symbol, #to_sym) —

    the type/use for the file

  • user (User) —

    the user to record as the Agent acting upon the file



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# File 'app/actors/hyrax/actors/file_actor.rb', line 13

def initialize(file_set, relation, user)
  @file_set = file_set
  @relation = normalize_relation(relation)
  @user = user
end

Instance Attribute Details

#file_set ⇒ Object (readonly)

Returns the value of attribute file_set.



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# File 'app/actors/hyrax/actors/file_actor.rb', line 8

def file_set
  @file_set
end

#relation ⇒ Object (readonly)

Returns the value of attribute relation.



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# File 'app/actors/hyrax/actors/file_actor.rb', line 8

def relation
  @relation
end

#use_valkyrie ⇒ Object (readonly)

Returns the value of attribute use_valkyrie.



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# File 'app/actors/hyrax/actors/file_actor.rb', line 8

def use_valkyrie
  @use_valkyrie
end

#user ⇒ Object (readonly)

Returns the value of attribute user.



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# File 'app/actors/hyrax/actors/file_actor.rb', line 8

def user
  @user
end

Instance Method Details

#==(other) ⇒ Object

Note:

FileSet comparison is limited to IDs, but this should be sufficient, given that most operations here are on the other side of async retrieval in Jobs (based solely on ID).



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# File 'app/actors/hyrax/actors/file_actor.rb', line 49

def ==(other)
  return false unless other.is_a?(self.class)
  file_set.id == other.file_set.id && relation == other.relation && user == other.user
end

#ingest_file(io) ⇒ CharacterizeJob, FalseClass

TODO:

create a job to monitor the temp directory (or in a multi-worker system, directories!) to prune old files that have made it into the repo

Note:

Instead of calling this method, use IngestJob to avoid synchronous execution cost

Persists file as part of file_set and spawns async job to characterize and create derivatives.

Parameters:

  • io (JobIoWrapper) —

    the file to save in the repository, with mime_type and original_name

Returns:

  • (CharacterizeJob, FalseClass) —

    spawned job on success, false on failure

See Also:



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# File 'app/actors/hyrax/actors/file_actor.rb', line 25

def ingest_file(io)
  Hydra::Works::AddFileToFileSet.call(file_set,
                                      io,
                                      relation,
                                      versioning: false)
  return false unless file_set.save
  repository_file = related_file
  create_version(repository_file, user)
  CharacterizeJob.perform_later(file_set, repository_file.id, pathhint(io))
end

#revert_to(revision_id) ⇒ CharacterizeJob, FalseClass

Reverts file and spawns async job to characterize and create derivatives.

Parameters:

  • revision_id (String)

Returns:

  • (CharacterizeJob, FalseClass) —

    spawned job on success, false on failure



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# File 'app/actors/hyrax/actors/file_actor.rb', line 39

def revert_to(revision_id)
  repository_file = related_file
  repository_file.restore_version(revision_id)
  return false unless file_set.save
  create_version(repository_file, user)
  CharacterizeJob.perform_later(file_set, repository_file.id)
end