DNF90 服务端与启动器完整源码（含 GM 工具功能增强）
服务端（Go）： - GM 塞背包/带属性装备发放：在线角色推送 op14 增量物品行，背包实时刷新，无需回角色选择界面 - GM 改金币/改等级：去掉在线拒绝，落库后推送 op14 钱包/op37 等级状态，在线实时刷新 - 等级端点统一切换到新版 GMSetCharacterLevel（自带在线刷新） - 无限/锁死疲劳模式 + 燃烧疲劳：每房间消耗 2 点、打怪与通关经验双倍 - 燃烧疲劳开关时给所有在线角色推送系统提示（op12 mode 0） - 深渊史诗掉率：GM 全局倍率 + 城镇增益药剂窗口倍率，真实接入掉落结算 启动器（Python/JS）： - 标题栏自绘、窗口 1204x717、禁止拖拽改大小、仅最小化/关闭 - GM 工具：疲劳与燃烧、深渊史诗掉率、拍卖行上架（单一定价对齐） - 拍卖行上架前端对齐服务端单一价格语义，修复 400 报错
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@@ -0,0 +1,283 @@
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package otelx
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import (
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"bytes"
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"context"
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"encoding/json"
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"hash/fnv"
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"log/slog"
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"net/http"
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"net/url"
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"strconv"
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"strings"
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"sync"
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"sync/atomic"
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"time"
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"longheng.io/server/internal/platform/config"
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"longheng.io/server/internal/platform/tracing"
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)
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type Shutdown func(context.Context) error
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type Recorder interface {
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ExportSpan(context.Context, tracing.Span)
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}
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type HTTPExporter struct {
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endpoint string
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serviceName string
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nodeID string
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environment string
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sampleRatio float64
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timeout time.Duration
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logger *slog.Logger
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client *http.Client
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inflight chan struct{}
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closed atomic.Bool
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lifecycleMu sync.Mutex
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wg sync.WaitGroup
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}
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const defMaxExports = 256
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func Setup(ctx context.Context, cfg config.OTelSection, serviceName, nodeID, environment string, logger *slog.Logger) (Shutdown, error) {
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if !cfg.Enabled {
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tracing.SetExporter(nil)
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return func(context.Context) error { return nil }, nil
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}
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endpoint, err := normalizeEndpoint(cfg.Endpoint, cfg.Insecure)
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if err != nil {
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return nil, err
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}
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serviceName = firstNonEmpty(cfg.ServiceName, serviceName, "longheng")
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timeout := time.Duration(cfg.BatchTimeoutSeconds) * time.Second
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if timeout <= 0 {
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timeout = 5 * time.Second
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}
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sampleRatio := cfg.SampleRatio
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if sampleRatio < 0 || sampleRatio > 1 {
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sampleRatio = 1
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}
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exporter := &HTTPExporter{
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endpoint: endpoint,
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serviceName: serviceName,
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nodeID: strings.TrimSpace(nodeID),
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environment: strings.TrimSpace(environment),
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sampleRatio: sampleRatio,
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timeout: timeout,
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logger: logger,
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client: &http.Client{Timeout: timeout},
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inflight: make(chan struct{}, defMaxExports),
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}
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tracing.SetExporter(exporter)
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if logger != nil {
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logger.Info("opentelemetry http trace export enabled", "endpoint", endpoint, "service_name", serviceName, "sample_ratio", sampleRatio)
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}
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return exporter.Shutdown, nil
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}
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func (e *HTTPExporter) ExportSpan(ctx context.Context, span tracing.Span) {
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if e == nil || e.closed.Load() || !e.shouldSample(span) {
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return
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}
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if ctx == nil {
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ctx = context.Background()
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}
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payload, err := json.Marshal(e.payload(span))
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if err != nil {
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if e.logger != nil {
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e.logger.Warn("otel marshal span failed", "trace_id", span.TraceID, "error", err)
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}
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return
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}
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release, ok := e.tryAcquireExportSlot(span.TraceID)
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if !ok {
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return
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}
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// Shutdown 必须在开始 Wait 前关闭准入；这里在同一把锁内二次检查并 Add，
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// 防止 ExportSpan 通过快速检查后在 Wait 已返回时才加入 WaitGroup。
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e.lifecycleMu.Lock()
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if e.closed.Load() {
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e.lifecycleMu.Unlock()
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release()
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return
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}
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e.wg.Add(1)
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e.lifecycleMu.Unlock()
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go func() {
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defer e.wg.Done()
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defer release()
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reqCtx, cancel := context.WithTimeout(ctx, e.timeout)
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defer cancel()
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req, err := http.NewRequestWithContext(reqCtx, http.MethodPost, e.endpoint, bytes.NewReader(payload))
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if err != nil {
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if e.logger != nil {
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e.logger.Warn("otel create export request failed", "trace_id", span.TraceID, "error", err)
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}
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return
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}
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req.Header.Set("Content-Type", "application/json")
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resp, err := e.client.Do(req)
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if err != nil {
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if e.logger != nil {
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e.logger.Warn("otel export span failed", "trace_id", span.TraceID, "error", err)
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}
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return
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}
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defer func() { _ = resp.Body.Close() }()
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if resp.StatusCode < 200 || resp.StatusCode >= 300 {
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if e.logger != nil {
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e.logger.Warn("otel export span returned non-2xx", "trace_id", span.TraceID, "status", resp.StatusCode)
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}
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}
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}()
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}
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func (e *HTTPExporter) tryAcquireExportSlot(traceID string) (func(), bool) {
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if e.inflight == nil {
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return func() {}, true
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}
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select {
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case e.inflight <- struct{}{}:
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return func() { <-e.inflight }, true
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default:
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if e.logger != nil {
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e.logger.Warn("otel export queue full; dropping span", "trace_id", traceID)
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}
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return nil, false
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}
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}
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func (e *HTTPExporter) Shutdown(ctx context.Context) error {
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if e == nil {
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return nil
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}
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e.lifecycleMu.Lock()
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e.closed.Store(true)
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e.lifecycleMu.Unlock()
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tracing.SetExporter(nil)
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done := make(chan struct{})
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go func() {
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e.wg.Wait()
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close(done)
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}()
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if ctx == nil {
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ctx = context.Background()
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}
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select {
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case <-ctx.Done():
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return ctx.Err()
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case <-done:
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return nil
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}
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}
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func (e *HTTPExporter) payload(span tracing.Span) map[string]any {
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attrs := []map[string]any{
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stringAttribute("service.name", e.serviceName),
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stringAttribute("service.instance.id", e.nodeID),
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stringAttribute("deployment.environment.name", e.environment),
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}
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spanAttrs := make([]map[string]any, 0, len(span.Attributes))
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for key, value := range span.Attributes {
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spanAttrs = append(spanAttrs, stringAttribute(key, value))
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}
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status := map[string]any{"code": "STATUS_CODE_OK"}
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if span.Error != "" {
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status = map[string]any{
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"code": "STATUS_CODE_ERROR",
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"message": span.Error,
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}
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spanAttrs = append(spanAttrs, stringAttribute("error.message", span.Error))
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}
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otelSpan := map[string]any{
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"traceId": span.TraceID,
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"spanId": span.SpanID,
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"name": span.Name,
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"startTimeUnixNano": formatUnixNano(span.StartedAt),
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"endTimeUnixNano": formatUnixNano(span.EndedAt),
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"attributes": spanAttrs,
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"status": status,
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}
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if span.ParentSpanID != "" {
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otelSpan["parentSpanId"] = span.ParentSpanID
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}
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return map[string]any{
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"resourceSpans": []map[string]any{
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{
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"resource": map[string]any{"attributes": attrs},
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"scopeSpans": []map[string]any{
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{
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"scope": map[string]any{"name": "longheng.io/server/runtime"},
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"spans": []map[string]any{otelSpan},
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},
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},
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},
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},
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}
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}
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func (e *HTTPExporter) shouldSample(span tracing.Span) bool {
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if span.Error != "" {
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return true
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}
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if e.sampleRatio >= 1 {
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return true
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}
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if e.sampleRatio <= 0 {
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return false
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}
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hash := fnv.New32a()
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_, _ = hash.Write([]byte(span.TraceID))
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return float64(hash.Sum32())/float64(^uint32(0)) <= e.sampleRatio
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}
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func normalizeEndpoint(raw string, insecure bool) (string, error) {
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raw = strings.TrimSpace(raw)
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if raw == "" {
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raw = "127.0.0.1:4318"
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}
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if !strings.Contains(raw, "://") {
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scheme := "https"
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if insecure {
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scheme = "http"
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}
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raw = scheme + "://" + raw
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}
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parsed, err := url.Parse(raw)
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if err != nil {
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return "", err
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}
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if parsed.Path == "" || parsed.Path == "/" {
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parsed.Path = "/v1/traces"
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}
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return parsed.String(), nil
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}
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func stringAttribute(key, value string) map[string]any {
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return map[string]any{
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"key": key,
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"value": map[string]any{
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"stringValue": value,
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},
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}
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}
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func formatUnixNano(ts time.Time) string {
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if ts.IsZero() {
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ts = time.Now().UTC()
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}
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return strconv.FormatInt(ts.UnixNano(), 10)
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}
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func firstNonEmpty(values ...string) string {
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for _, value := range values {
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value = strings.TrimSpace(value)
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if value != "" {
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return value
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}
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}
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return ""
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}
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