89 lines
1.7 KiB
Go
89 lines
1.7 KiB
Go
// Package service provides the service log
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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/service/proto"
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)
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// Debug provides debug service client
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type debugClient struct {
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Client pb.DebugService
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}
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// NewClient provides a debug client
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func NewClient(name string) *debugClient {
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// create default client
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cli := client.DefaultClient
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return &debugClient{
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Client: 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 *debugClient) Log(opts ...log.ReadOption) (<-chan log.Record, error) {
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var 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.Unix()
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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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req.Stream = options.Stream
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// get the log stream
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stream, err := d.Client.Log(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 *debugClient) streamLogs(logChan chan log.Record, stream pb.Debug_LogService) {
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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(resp.Timestamp, 0),
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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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