# File lib/deltacloud/drivers/mock/mock_driver.rb, line 429
  def create_blob(credentials, bucket_id, blob_id, blob_data, opts={})
    check_credentials(credentials)
      blob_meta = {}
      opts.inject({}){|result, (k,v)| blob_meta[k] = v if k.match(/X[_-]Deltacloud[_-]Blobmeta[_-]/i)} #select{|k,v| k.match(/X[_-]Deltacloud[_-]Blobmeta[_-]/i)}
       blob = {
      :id => blob_id,
      :bucket => bucket_id,
      :content_length => blob_data[:tempfile].length,
      :content_type => blob_data[:type],
      :last_modified => Time.now,
      :user_metadata => blob_meta.gsub_keys('X_Deltacloud_Blobmeta_', ''),
      :content => blob_data[:tempfile].read
    }
    File.open( File::join("#{@storage_root}", "buckets", "blobs", "#{blob_id}.yml"), 'w' ) {|b| YAML.dump( blob, b )}
    Blob.new(blob)
  end