56 lines
1.2 KiB
Go
56 lines
1.2 KiB
Go
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package connector
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import (
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"fmt"
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"time"
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"github.com/sendgridlabs/go-kinesis"
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)
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// CreateStream creates a new Kinesis stream (uses existing stream if exists) and
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// waits for it to become available.
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func CreateStream(k *kinesis.Kinesis, streamName string, shardCount int) {
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if !StreamExists(k, streamName) {
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err := k.CreateStream(streamName, shardCount)
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if err != nil {
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fmt.Printf("CreateStream ERROR: %v\n", err)
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return
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}
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}
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resp := &kinesis.DescribeStreamResp{}
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timeout := make(chan bool, 30)
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for {
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args := kinesis.NewArgs()
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args.Add("StreamName", streamName)
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resp, _ = k.DescribeStream(args)
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streamStatus := resp.StreamDescription.StreamStatus
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fmt.Printf("Stream [%v] is %v\n", streamName, streamStatus)
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if streamStatus != "ACTIVE" {
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time.Sleep(4 * time.Second)
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timeout <- true
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} else {
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break
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}
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}
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}
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// StreamExists checks if a Kinesis stream exists.
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func StreamExists(k *kinesis.Kinesis, streamName string) bool {
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args := kinesis.NewArgs()
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resp, err := k.ListStreams(args)
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if err != nil {
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fmt.Printf("ListStream ERROR: %v\n", err)
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return false
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}
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for _, s := range resp.StreamNames {
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if s == streamName {
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return true
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}
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}
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return false
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}
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