def self.write_one(object, writer, singular = nil)
singular ||= 'event'
writer.write_start(singular)
href = object.href
writer.write_attribute('href', href) unless href.nil?
writer.write_attribute('id', object.id) unless object.id.nil?
Writer.write_integer(writer, 'code', object.code) unless object.code.nil?
Writer.write_string(writer, 'comment', object.comment) unless object.comment.nil?
Writer.write_string(writer, 'correlation_id', object.correlation_id) unless object.correlation_id.nil?
Writer.write_string(writer, 'custom_data', object.custom_data) unless object.custom_data.nil?
Writer.write_integer(writer, 'custom_id', object.custom_id) unless object.custom_id.nil?
Writer.write_string(writer, 'description', object.description) unless object.description.nil?
Writer.write_integer(writer, 'flood_rate', object.flood_rate) unless object.flood_rate.nil?
Writer.write_string(writer, 'name', object.name) unless object.name.nil?
Writer.write_string(writer, 'origin', object.origin) unless object.origin.nil?
Writer.write_string(writer, 'severity', object.severity) unless object.severity.nil?
Writer.write_date(writer, 'time', object.time) unless object.time.nil?
ClusterWriter.write_one(object.cluster, writer, 'cluster') unless object.cluster.nil?
DataCenterWriter.write_one(object.data_center, writer, 'data_center') unless object.data_center.nil?
HostWriter.write_one(object.host, writer, 'host') unless object.host.nil?
StorageDomainWriter.write_one(object.storage_domain, writer, 'storage_domain') unless object.storage_domain.nil?
TemplateWriter.write_one(object.template, writer, 'template') unless object.template.nil?
UserWriter.write_one(object.user, writer, 'user') unless object.user.nil?
VmWriter.write_one(object.vm, writer, 'vm') unless object.vm.nil?
writer.write_end
end