| -- |
| -- Licensed to the Apache Software Foundation (ASF) under one or more |
| -- contributor license agreements. See the NOTICE file distributed with |
| -- this work for additional information regarding copyright ownership. |
| -- The ASF licenses this file to You under the Apache License, Version 2.0 |
| -- (the "License"); you may not use this file except in compliance with |
| -- the License. You may obtain a copy of the License at |
| -- |
| -- http://www.apache.org/licenses/LICENSE-2.0 |
| -- |
| -- Unless required by applicable law or agreed to in writing, software |
| -- distributed under the License is distributed on an "AS IS" BASIS, |
| -- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| -- See the License for the specific language governing permissions and |
| -- limitations under the License. |
| -- |
| |
| -- Segment represents a finished tracing context |
| -- Including all information to send to the SkyWalking OAP server. |
| local Util = require('util') |
| |
| local Segment = { |
| trace_id, |
| segment_id, |
| service_id, |
| service_inst_id, |
| spans, |
| } |
| |
| -- Due to nesting relationship inside Segment/Span/TracingContext at the runtime, |
| -- SegmentProtocol is created to prepare JSON format serialization. |
| -- Following SkyWalking official trace protocol v2 |
| -- https://github.com/apache/skywalking-data-collect-protocol/blob/master/language-agent-v2/trace.proto |
| local SegmentProtocol = { |
| globalTraceIds, |
| traceSegmentId, |
| serviceId, |
| serviceInstanceId, |
| spans, |
| } |
| |
| function Segment:new() |
| local o = {} |
| setmetatable(o, self) |
| self.__index = self |
| |
| return o |
| end |
| |
| function SegmentProtocol:new() |
| local o = {} |
| setmetatable(o, self) |
| self.__index = self |
| |
| o.globalTraceIds = {} |
| |
| return o |
| end |
| |
| -- Return SegmentProtocol |
| function Segment:transform() |
| local segmentBuilder = SegmentProtocol:new() |
| segmentBuilder.serviceId = self.service_id |
| segmentBuilder.globalTraceIds[1] = { idParts = self.trace_id} |
| segmentBuilder.traceSegmentId = { idParts = self.segment_id} |
| segmentBuilder.serviceId = self.service_id |
| segmentBuilder.serviceInstanceId = self.service_inst_id |
| |
| segmentBuilder.spans = {} |
| for i, span in ipairs(self.spans) |
| do |
| segmentBuilder.spans[#segmentBuilder.spans + 1] = span:transform() |
| end |
| |
| return segmentBuilder |
| end |
| |
| return Segment |