Sha256: 479770aabccdaa7fffe6af981e2c99bac4c6ca18aa95ebf5f33e58b1c3981c5b
Contents?: true
Size: 1.36 KB
Versions: 9
Compression:
Stored size: 1.36 KB
Contents
require 'open3'
module Sufia
module FileContent
module ExtractMetadata
include Open3
def extract_metadata
out = nil
to_tempfile do |f|
out = run_fits!(f.path)
end
out
end
def to_tempfile &block
return unless has_content?
tmp_base = Sufia.config.temp_file_base
f = Tempfile.new("#{pid}-#{dsVersionID}")
f.binmode
if content.respond_to? :read
f.write(content.read)
else
f.write(content)
end
f.close
content.rewind if content.respond_to? :rewind
yield(f)
f.unlink
end
# Return true if the content is present
# You can override this method if your content is an external datastream
def has_content?
!content.nil?
end
private
def run_fits!(file_path)
command = "#{fits_path} -i \"#{file_path}\""
stdin, stdout, stderr, wait_thr = popen3(command)
stdin.close
out = stdout.read
stdout.close
err = stderr.read
stderr.close
exit_status = wait_thr.value
raise "Unable to execute command \"#{command}\"\n#{err}" unless exit_status.success?
out
end
def fits_path
Sufia.config.fits_path
end
end
end
end
Version data entries
9 entries across 9 versions & 2 rubygems