/// <summary>
/// 创建一个新的日志流并开始记录
/// </summary>
/// <param name="client">AWS 客户端</param>
/// <param name="groupName">日志组名称</param>
/// <param name="streamName">日志流名称</param>
/// <returns></returns>
public static CloudWatchLogger CreateStream(AmazonCloudWatchLogsClient client, string groupName, string streamName)
{
var response = client.CreateLogStream(new CreateLogStreamRequest {
LogGroupName = groupName, LogStreamName = streamName
});
return(new CloudWatchLogger(client, groupName, streamName));
}
bool CreateCwLogSream(string stream_name)
{
using (var cwl = new AmazonCloudWatchLogsClient(aws_credentials, aws_region))
{
try
{
Console.WriteLine($"Creating log stream {stream_name}.");
cwl.CreateLogStream(new CreateLogStreamRequest(cw_log_group_name, cw_log_stream_name));
return(true);
}
catch
{
return(false);
}
}
}
static void Main(string[] args)
{
var logClient = new AmazonCloudWatchLogsClient();
// Add a new log group for testing
const string newLogGroupName = "NewLogGroup";
DescribeLogGroupsResponse dlgr = logClient.DescribeLogGroups();
var groups = new List <LogGroup> {
};
groups = dlgr.LogGroups;
LogGroup lg = new LogGroup();
lg.LogGroupName = newLogGroupName;
// Look for our new log group name to determine if we need to do setup
LogGroup result = groups.Find(
delegate(LogGroup bk)
{
return(bk.LogGroupName == newLogGroupName);
}
);
if (result != null)
{
Console.WriteLine(result.LogGroupName + " found");
}
else
{
//Haven't seen this log group, set it up
CreateLogGroupRequest clgr = new CreateLogGroupRequest(newLogGroupName);
logClient.CreateLogGroup(clgr);
// Create a file to sace next SequenceToken in
File.CreateText("..\\..\\" + lg.LogGroupName + ".txt");
CreateLogStreamRequest csr = new CreateLogStreamRequest(lg.LogGroupName, newLogGroupName);
logClient.CreateLogStream(csr);
}
string tokenFile = "";
try
{
Console.WriteLine(lg.LogGroupName);
//Pick up the next sequence token from the last run
tokenFile = lg.LogGroupName;
StreamReader sr = File.OpenText("..\\..\\" + tokenFile + ".txt");
string sequenceToken = sr.ReadLine();
sr.Close();
lg.RetentionInDays = 30;
string groupName = lg.LogGroupName;;
TestMetricFilterRequest tmfr = new TestMetricFilterRequest();
List <InputLogEvent> logEvents = new List <InputLogEvent>(3);
InputLogEvent ile = new InputLogEvent();
ile.Message = "Test Event 1";
//DateTime dt = new DateTime(1394793518000);
DateTime dt = new DateTime(2017, 01, 11);
ile.Timestamp = dt;
logEvents.Add(ile);
ile.Message = "Test Event 2";
logEvents.Add(ile);
ile.Message = "This message also contains an Error";
logEvents.Add(ile);
DescribeLogStreamsRequest dlsr = new DescribeLogStreamsRequest(groupName);
PutLogEventsRequest pler = new PutLogEventsRequest(groupName, tokenFile, logEvents);
pler.SequenceToken = sequenceToken; //use last sequence token
PutLogEventsResponse plerp = new PutLogEventsResponse();
plerp = logClient.PutLogEvents(pler);
Console.WriteLine("Next sequence token = " + plerp.NextSequenceToken);
FileStream fs = File.OpenWrite("..\\..\\" + tokenFile + ".txt");
fs.Position = 0;
UTF8Encoding utf8 = new UTF8Encoding();
Byte[] encodedBytes = utf8.GetBytes(plerp.NextSequenceToken);
fs.Write(encodedBytes, 0, utf8.GetByteCount(plerp.NextSequenceToken));
fs.Close();
List <string> lem = new List <string>(1);
lem.Add("Error");
tmfr.LogEventMessages = lem;
tmfr.FilterPattern = "Error";
TestMetricFilterResponse tmfrp = new TestMetricFilterResponse();
tmfrp = logClient.TestMetricFilter(tmfr);
var results = new List <MetricFilterMatchRecord> {
};
results = tmfrp.Matches;
Console.WriteLine("Found " + results.Count.ToString() + " match records");
IEnumerator ie = results.GetEnumerator();
while (ie.MoveNext())
{
MetricFilterMatchRecord mfmr = (MetricFilterMatchRecord)ie.Current;
Console.WriteLine("Event Message = " + mfmr.EventMessage);
}
Console.WriteLine("Metric filter test done");
}
catch (Exception e)
{
Console.WriteLine(e.Message);
}
}
void Writer(object sender, ElapsedEventArgs e)
{
var logEvents = new List <InputLogEvent>();
try
{
var more = true;
while (more)
{
InputLogEvent item;
more = items.TryTake(out item);
if (more)
{
logEvents.Add(item);
}
}
if (logEvents.Count == 0)
{
return;
}
if (!Settings.Default.SendUsageData)
{
return;
}
using (var logs = new AmazonCloudWatchLogsClient(AwsKeys.AccessKey, AwsKeys.SecretKey, RegionEndpoint.APSoutheast2))
{
var request = new PutLogEventsRequest(AwsKeys.GroupName, LogStreamName, logEvents);
var describeLogStreamsRequest = new DescribeLogStreamsRequest(AwsKeys.GroupName)
{
LogStreamNamePrefix = trackingId,
Descending = true
};
var describeLogStreamsResponse = logs.DescribeLogStreams(describeLogStreamsRequest);
var logStreams = describeLogStreamsResponse.LogStreams;
var logStream = logStreams.FirstOrDefault(ls => ls.LogStreamName == LogStreamName);
if (logStream != null)
{
var token = logStream.UploadSequenceToken;
request.SequenceToken = token;
checkResponse(logs.PutLogEvents(request));
}
else
{
var createRequest = new CreateLogStreamRequest(AwsKeys.GroupName, LogStreamName);
checkResponse(logs.CreateLogStream(createRequest));
checkResponse(logs.PutLogEvents(request));
}
}
}
catch (Exception ee)
{
AttempToRestoreErrors(logEvents, ee);
}
finally
{
if (timer != null)
{
timer.Start();
}
}
}