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Versions: 21
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Contents
module RailsConnector
class S3Blob
class << self
def s3_objects
@s3_objects ||= bucket.objects
end
def bucket_url
@cached_bucket_url ||= bucket.url
end
def configure(spec)
@spec = spec.symbolize_keys
# invalidate cache
@cached_bucket_url = nil
@s3_objects = nil
end
def find(id)
new(id)
end
private
attr_reader :spec
def s3_api
AWS::S3.new(
:access_key_id => access_key_id,
:secret_access_key => secret_access_key
)
end
def bucket
s3_api.buckets[bucket_name]
end
def bucket_name
spec[:bucket_name]
end
def access_key_id
spec[:access_key_id]
end
def secret_access_key
spec[:secret_access_key]
end
end
attr_reader :id
def initialize(id)
@id = id
end
def s3_object
@s3_object ||= self.class.s3_objects[id]
end
def url
# the 'official' way to calculate an s3 url is as follows:
# s3_object.public_url.to_s
#
# this is about 25x faster:
# assumption: 'id' does not contain any characters that need escaping.
# the assumptions is valid for cms blobs.
"#{self.class.bucket_url}#{@id}"
end
def meta_url
url
end
def content_type
s3_object.content_type
end
def length
s3_object.content_length
end
end
end # module RailsConnector
Version data entries
21 entries across 21 versions & 1 rubygems