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| 1 | +// Copyright 2026 The OpenChoreo Authors |
| 2 | +// SPDX-License-Identifier: Apache-2.0 |
| 3 | + |
| 4 | +package adaptor |
| 5 | + |
| 6 | +import ( |
| 7 | + "context" |
| 8 | + "errors" |
| 9 | + "fmt" |
| 10 | + "log/slog" |
| 11 | + "sort" |
| 12 | + "time" |
| 13 | + |
| 14 | + "github.com/openchoreo/openchoreo/internal/observer/config" |
| 15 | + "github.com/openchoreo/openchoreo/internal/observer/opensearch" |
| 16 | + "github.com/openchoreo/openchoreo/pkg/observability" |
| 17 | +) |
| 18 | + |
| 19 | +var ( |
| 20 | + ErrSpanNotFound = errors.New("span not found") |
| 21 | +) |
| 22 | + |
| 23 | +type DefaultTracesAdaptor struct { |
| 24 | + osClient *opensearch.Client |
| 25 | + queryBuilder *opensearch.QueryBuilder |
| 26 | + logger *slog.Logger |
| 27 | +} |
| 28 | + |
| 29 | +func NewDefaultTracesAdaptor(cfg *config.OpenSearchConfig, logger *slog.Logger) (*DefaultTracesAdaptor, error) { |
| 30 | + osClient, err := opensearch.NewClient(cfg, logger) |
| 31 | + if err != nil { |
| 32 | + return nil, fmt.Errorf("failed to create OpenSearch client: %w", err) |
| 33 | + } |
| 34 | + |
| 35 | + return &DefaultTracesAdaptor{ |
| 36 | + osClient: osClient, |
| 37 | + queryBuilder: opensearch.NewQueryBuilder(cfg.IndexPrefix), |
| 38 | + logger: logger, |
| 39 | + }, nil |
| 40 | +} |
| 41 | + |
| 42 | +func (a *DefaultTracesAdaptor) GetTraces(ctx context.Context, params observability.TracesQueryParams) (*observability.TracesQueryResult, error) { |
| 43 | + a.logger.Debug("Getting traces from OpenSearch") |
| 44 | + |
| 45 | + // Build OpenSearch query params from observability params |
| 46 | + osParams := opensearch.TracesRequestParams{ |
| 47 | + StartTime: params.StartTime.Format(time.RFC3339), |
| 48 | + EndTime: params.EndTime.Format(time.RFC3339), |
| 49 | + ProjectUID: params.ProjectID, |
| 50 | + EnvironmentUID: params.EnvironmentID, |
| 51 | + TraceID: params.TraceID, |
| 52 | + Limit: params.Limit, |
| 53 | + SortOrder: params.SortOrder, |
| 54 | + } |
| 55 | + // Only add ComponentUID if it's not empty |
| 56 | + if params.ComponentID != "" { |
| 57 | + osParams.ComponentUIDs = []string{params.ComponentID} |
| 58 | + } |
| 59 | + |
| 60 | + // Build and execute query |
| 61 | + query := a.queryBuilder.BuildTracesQuery(osParams) |
| 62 | + response, err := a.osClient.Search(ctx, []string{"otel-traces-*"}, query) |
| 63 | + if err != nil { |
| 64 | + return nil, fmt.Errorf("failed to execute traces search: %w", err) |
| 65 | + } |
| 66 | + |
| 67 | + // Parse and group spans by trace ID |
| 68 | + traceMap := make(map[string][]opensearch.Span) |
| 69 | + for _, hit := range response.Hits.Hits { |
| 70 | + span := opensearch.ParseSpanEntry(hit) |
| 71 | + traceID := opensearch.GetTraceID(hit) |
| 72 | + if traceID != "" { |
| 73 | + traceMap[traceID] = append(traceMap[traceID], span) |
| 74 | + } |
| 75 | + } |
| 76 | + |
| 77 | + // Convert to observability.Trace format |
| 78 | + traces := make([]observability.Trace, 0, len(traceMap)) |
| 79 | + traceIDs := make([]string, 0, len(traceMap)) |
| 80 | + for traceID := range traceMap { |
| 81 | + traceIDs = append(traceIDs, traceID) |
| 82 | + } |
| 83 | + sort.Strings(traceIDs) |
| 84 | + |
| 85 | + for _, traceID := range traceIDs { |
| 86 | + spans := traceMap[traceID] |
| 87 | + trace := convertToObservabilityTrace(traceID, spans) |
| 88 | + traces = append(traces, trace) |
| 89 | + } |
| 90 | + |
| 91 | + return &observability.TracesQueryResult{ |
| 92 | + Traces: traces, |
| 93 | + TotalCount: len(traces), |
| 94 | + Took: response.Took, |
| 95 | + }, nil |
| 96 | +} |
| 97 | + |
| 98 | +// GetSpanDetails retrieves details for a specific span |
| 99 | +func (a *DefaultTracesAdaptor) GetSpanDetails(ctx context.Context, traceID string, spanID string) (*opensearch.Span, error) { |
| 100 | + a.logger.Debug("Getting span details from OpenSearch", "traceId", traceID, "spanId", spanID) |
| 101 | + |
| 102 | + // Build query to get the specific span |
| 103 | + query := a.queryBuilder.BuildSpanDetailsQuery(traceID, spanID) |
| 104 | + response, err := a.osClient.Search(ctx, []string{"otel-traces-*"}, query) |
| 105 | + if err != nil { |
| 106 | + return nil, fmt.Errorf("failed to execute span search: %w", err) |
| 107 | + } |
| 108 | + |
| 109 | + // Check if span was found |
| 110 | + if len(response.Hits.Hits) == 0 { |
| 111 | + return nil, ErrSpanNotFound |
| 112 | + } |
| 113 | + |
| 114 | + // Parse and return the span |
| 115 | + span := opensearch.ParseSpanEntry(response.Hits.Hits[0]) |
| 116 | + return &span, nil |
| 117 | +} |
| 118 | + |
| 119 | +func convertToObservabilityTrace(traceID string, spans []opensearch.Span) observability.Trace { |
| 120 | + // Find root span and calculate trace metadata |
| 121 | + var rootSpan *opensearch.Span |
| 122 | + var minStartTime, maxEndTime time.Time |
| 123 | + |
| 124 | + for i := range spans { |
| 125 | + span := &spans[i] |
| 126 | + if rootSpan == nil || span.ParentSpanID == "" { |
| 127 | + rootSpan = span |
| 128 | + } |
| 129 | + if minStartTime.IsZero() || span.StartTime.Before(minStartTime) { |
| 130 | + minStartTime = span.StartTime |
| 131 | + } |
| 132 | + if maxEndTime.IsZero() || span.EndTime.After(maxEndTime) { |
| 133 | + maxEndTime = span.EndTime |
| 134 | + } |
| 135 | + } |
| 136 | + |
| 137 | + // Convert opensearch spans to observability spans |
| 138 | + traceSpans := make([]observability.TraceSpan, len(spans)) |
| 139 | + for i, span := range spans { |
| 140 | + traceSpans[i] = observability.TraceSpan{ |
| 141 | + SpanID: span.SpanID, |
| 142 | + Name: span.Name, |
| 143 | + ParentSpanID: span.ParentSpanID, |
| 144 | + StartTime: span.StartTime, |
| 145 | + EndTime: span.EndTime, |
| 146 | + DurationNs: span.DurationNanoseconds, |
| 147 | + Attributes: span.Attributes, |
| 148 | + ResourceAttributes: span.ResourceAttributes, |
| 149 | + } |
| 150 | + } |
| 151 | + |
| 152 | + trace := observability.Trace{ |
| 153 | + TraceID: traceID, |
| 154 | + SpanCount: len(spans), |
| 155 | + StartTime: minStartTime, |
| 156 | + EndTime: maxEndTime, |
| 157 | + DurationNs: maxEndTime.Sub(minStartTime).Nanoseconds(), |
| 158 | + Spans: traceSpans, |
| 159 | + } |
| 160 | + |
| 161 | + if rootSpan != nil { |
| 162 | + trace.RootSpanID = rootSpan.SpanID |
| 163 | + trace.RootSpanName = rootSpan.Name |
| 164 | + trace.TraceName = rootSpan.Name |
| 165 | + } |
| 166 | + |
| 167 | + return trace |
| 168 | +} |
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