public void PropertiesContainFieldsFromStructuredLogs()
{
var logRecords = new List <LogRecord>();
using var loggerFactory = LoggerFactory.Create(builder =>
{
builder.AddOpenTelemetry(options =>
{
options.AddInMemoryExporter(logRecords);
});
builder.AddFilter(typeof(LogsHelperTests).FullName, LogLevel.Trace);
});
var logger = loggerFactory.CreateLogger <LogsHelperTests>();
string log = "Hello from {name} {price}.";
logger.LogInformation(log, "tomato", 2.99);
var properties = new ChangeTrackingDictionary <string, string>();
LogsHelper.GetMessageAndSetProperties(logRecords[0], properties);
Assert.True(properties.TryGetValue("name", out string name));
Assert.Equal("tomato", name);
Assert.True(properties.TryGetValue("price", out string price));
Assert.Equal("2.99", price);
}
public void PropertiesContainEventIdAndEventNameIfSetOnLog()
{
var logRecords = new List <LogRecord>();
using var loggerFactory = LoggerFactory.Create(builder =>
{
builder.AddOpenTelemetry(options =>
{
options.ParseStateValues = true;
options.AddInMemoryExporter(logRecords);
});
builder.AddFilter(typeof(LogsHelperTests).FullName, LogLevel.Trace);
});
var logger = loggerFactory.CreateLogger <LogsHelperTests>();
EventId id = new EventId(1, "TestEvent");
logger.LogInformation(id, "Log Information");
var properties = new ChangeTrackingDictionary <string, string>();
LogsHelper.GetMessageAndSetProperties(logRecords[0], properties);
Assert.True(properties.TryGetValue("EventId", out string eventId));
Assert.Equal("1", eventId);
Assert.True(properties.TryGetValue("EventName", out string eventName));
Assert.Equal("TestEvent", eventName);
}
public void MessageIsSetToOriginalFormatWhenIncludeFormattedMessageIsNotSet()
{
var logRecords = new List <LogRecord>();
using var loggerFactory = LoggerFactory.Create(builder =>
{
builder.AddOpenTelemetry(options =>
{
options.AddInMemoryExporter(logRecords);
});
builder.AddFilter(typeof(LogsHelperTests).FullName, LogLevel.Trace);
});
var logger = loggerFactory.CreateLogger <LogsHelperTests>();
string log = "Hello from {name} {price}.";
logger.LogInformation(log, "tomato", 2.99);
var properties = new ChangeTrackingDictionary <string, string>();
var message = LogsHelper.GetMessageAndSetProperties(logRecords[0], properties);
Assert.Equal(log, message);
Assert.False(properties.ContainsKey("OriginalFormat"));
Assert.True(properties.TryGetValue("name", out string name));
Assert.Equal("tomato", name);
Assert.True(properties.TryGetValue("price", out string price));
Assert.Equal("2.99", price);
}
public MessageData(int version, LogRecord logRecord) : base(version)
{
Properties = new ChangeTrackingDictionary <string, string>();
Measurements = new ChangeTrackingDictionary <string, double>();
Message = LogsHelper.GetMessageAndSetProperties(logRecord, Properties).Truncate(SchemaConstants.MessageData_Message_MaxLength);
SeverityLevel = LogsHelper.GetSeverityLevel(logRecord.LogLevel);
}
public TelemetryExceptionData(int version, LogRecord logRecord) : base(version)
{
Properties = new ChangeTrackingDictionary <string, string>();
Measurements = new ChangeTrackingDictionary <string, double>();
var message = LogsHelper.GetMessageAndSetProperties(logRecord, Properties);
SeverityLevel = LogsHelper.GetSeverityLevel(logRecord.LogLevel);
ProblemId = LogsHelper.GetProblemId(logRecord.Exception).Truncate(SchemaConstants.ExceptionData_ProblemId_MaxLength);
// collect the set of exceptions detail info from the passed in exception
List <TelemetryExceptionDetails> exceptions = new List <TelemetryExceptionDetails>();
ConvertExceptionTree(logRecord.Exception, message, null, exceptions);
// trim if we have too many, also add a custom exception to let the user know we're trimmed
if (exceptions.Count > MaxExceptionCountToSave)
{
// create our "message" exception.
InnerExceptionCountExceededException countExceededException =
new InnerExceptionCountExceededException(
string.Format(
CultureInfo.InvariantCulture,
"The number of inner exceptions was {0} which is larger than {1}, the maximum number allowed during transmission. All but the first {1} have been dropped.",
exceptions.Count,
MaxExceptionCountToSave));
// remove all but the first N exceptions
exceptions.RemoveRange(MaxExceptionCountToSave,
exceptions.Count - MaxExceptionCountToSave);
// we'll add our new exception and parent it to the root exception (first one in the list)
exceptions.Add(new TelemetryExceptionDetails(countExceededException, countExceededException.Message, exceptions[0]));
}
Exceptions = exceptions;
}