GetLogEvents_test.go - AWS Code Sample

GetLogEvents_test.go

/* Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved. This file is licensed under the Apache License, Version 2.0 (the "License"). You may not use this file except in compliance with the License. A copy of the License is located at http://aws.amazon.com/apache2.0/ This file is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. */ package main import ( "encoding/json" "io/ioutil" "strconv" "testing" "github.com/aws/aws-sdk-go/aws/session" "github.com/aws/aws-sdk-go/service/cloudwatchlogs" ) type Config struct { Limit int64 `json:"Limit"` LogGroupName string `json:"LogGroupName"` LogStreamName string `json:"LogStreamName"` } var configFileName = "config.json" var globalConfig Config func getLogGroupStreamNames(sess *session.Session, groupIndex int) (string, string, error) { svc := cloudwatchlogs.New(sess) resp, err := svc.DescribeLogGroups(nil) if err != nil { return "", "", err } if groupIndex < len(resp.LogGroups) { logGroupName := resp.LogGroups[groupIndex].LogGroupName result, err := svc.DescribeLogStreams(&cloudwatchlogs.DescribeLogStreamsInput{ LogGroupName: logGroupName, }) if err != nil { return "", "", err } return *logGroupName, *result.LogStreams[0].LogStreamName, nil } return "", "", nil } func populateConfiguration(t *testing.T) error { content, err := ioutil.ReadFile(configFileName) if err != nil { return err } text := string(content) err = json.Unmarshal([]byte(text), &globalConfig) if err != nil { return err } t.Log("Limit: " + strconv.Itoa(int(globalConfig.Limit))) t.Log("LogGroupName: " + globalConfig.LogGroupName) t.Log("LogStreamName: " + globalConfig.LogStreamName) return nil } func TestGetLogEvents(t *testing.T) { sess := session.Must(session.NewSessionWithOptions(session.Options{ SharedConfigState: session.SharedConfigEnable, })) err := populateConfiguration(t) if err != nil { t.Fatal(err) } if globalConfig.Limit < 1 { globalConfig.Limit = 1 } if globalConfig.Limit > 100 { globalConfig.Limit = 100 } logGroupIndex := 0 gotEvents := false var Resp *cloudwatchlogs.GetLogEventsOutput for !gotEvents { globalConfig.LogGroupName, globalConfig.LogStreamName, err = getLogGroupStreamNames(sess, logGroupIndex) if err != nil { t.Fatal(err) } Resp, err = GetLogEvents(sess, &globalConfig.Limit, &globalConfig.LogGroupName, &globalConfig.LogStreamName) if err != nil { t.Fatal(err) } length := len(Resp.Events) if length > 0 { gotEvents = true } else { globalConfig.LogGroupName = "" globalConfig.LogStreamName = "" gotEvents = false logGroupIndex++ } } t.Log("Event messages for stream " + globalConfig.LogStreamName + " in log group " + globalConfig.LogGroupName) for _, event := range Resp.Events { if nil != event.Message { t.Log(" ", *event.Message) } } t.Log("Got " + strconv.Itoa(len(Resp.Events)) + " event(s) for log stream " + globalConfig.LogStreamName + " in log group " + globalConfig.LogGroupName) }