function SkyWalkingHandler:access()

in kong/plugins/skywalking/handler.lua [35:55]

• 17 lines of code
• 4 McCabe index (conditional complexity)

function SkyWalkingHandler:access(config)
    if subsystem == "stream" then
        kong.log.warn("Not supportted to trace \"stream\" request yet.")
        return
    end

    if config.sample_ratio == 100 or math.random() * 100 < config.sample_ratio then
        kong.ctx.plugin.skywalking_sample = true

        if not client:isInitialized() then
            local metadata_buffer = ngx.shared.tracing_buffer
            metadata_buffer:set('serviceName', config.service_name)
            metadata_buffer:set('serviceInstanceName', config.service_instance_name)
            metadata_buffer:set('includeHostInEntrySpan', config.include_host_in_entry_span)

            client:startBackendTimer(config.backend_http_uri)
        end

        tracer:start(self:get_remote_peer(ngx.ctx.balancer_data))
    end
end