85 lines
1.6 KiB
Go
85 lines
1.6 KiB
Go
package service
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import (
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"context"
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"fmt"
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"time"
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"github.com/micro/go-micro/client"
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"github.com/micro/go-micro/debug/log"
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pb "github.com/micro/go-micro/debug/proto"
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)
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// Debug provides debug service client
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type Debug struct {
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dbg pb.DebugService
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}
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// NewDebug provides Debug service implementation
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func NewDebug(name string) *Debug {
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// create default client
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cli := client.DefaultClient
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return &Debug{
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dbg: pb.NewDebugService(name, cli),
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}
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}
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// Logs queries the service logs and returns a channel to read the logs from
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func (d *Debug) Logs(opts ...log.ReadOption) (<-chan log.Record, error) {
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options := log.ReadOptions{}
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// initialize the read options
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for _, o := range opts {
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o(&options)
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}
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req := &pb.LogRequest{}
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if !options.Since.IsZero() {
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req.Since = options.Since.UnixNano()
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}
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if options.Count > 0 {
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req.Count = int64(options.Count)
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}
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// get the log stream
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stream, err := d.dbg.Logs(context.Background(), req)
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if err != nil {
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return nil, fmt.Errorf("failed getting log stream: %s", err)
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}
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// log channel for streaming logs
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logChan := make(chan log.Record)
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// go stream logs
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go d.streamLogs(logChan, stream)
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return logChan, nil
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}
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func (d *Debug) streamLogs(logChan chan log.Record, stream pb.Debug_LogsService) {
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defer stream.Close()
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for {
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resp, err := stream.Recv()
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if err != nil {
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break
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}
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metadata := make(map[string]string)
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for k, v := range resp.Metadata {
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metadata[k] = v
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}
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record := log.Record{
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Timestamp: time.Unix(0, resp.Timestamp),
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Value: resp.Value,
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Metadata: metadata,
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}
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logChan <- record
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}
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close(logChan)
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}
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