public async Task <AuditLog> ReadAllEvents <TDataType>(int id) where TDataType : DataEntity
{
using (_logger.BeginScope("{Operation} is {Action} for {DataType} with id ({id})", nameof(FileAuditWorker),
"reading all events", typeof(TDataType).Name, id))
{
var filename = GetFileName <TDataType>(id);
if (!await FileStreamer.Exists(filename))
{
return(null);
}
var maxAttempts = MaxAttempts <TDataType>();
_logger.LogTrace("Will try to write to {filename} {MaxAttempts} times", filename,
maxAttempts >= 0 ? maxAttempts.ToString() : "until success");
var attempts = 0;
while (maxAttempts == -1 || attempts < maxAttempts)
{
attempts++;
_logger.LogTrace("Attempt number {Attempt}", attempts);
if (await FileStreamer.GetLockForFile(filename))
{
try
{
var audit = await FileStreamer.ReadDataFromStream <AuditLog>(filename);
_logger.LogInformation("Read audit from disk");
return(audit);
}
catch (Exception exception)
{
_logger.LogWarning(exception, "Failed to read audit");
}
}
public async Task <bool> ExistsWhenItDoesNotExist()
{
MockFile
.Setup(x => x.Exists(Filename))
.ReturnsAsync(false);
return(await FileStreamer.Exists(Filename));
}
public Task <bool> IndexExist <TDataType>(string indexName) where TDataType : DataEntity
{
using (_logger.BeginScope("{Operation} is {Action} {IndexName} for {DataType}", nameof(FileIndexWorker),
"checking existence of", indexName, typeof(TDataType).Name))
{
return(FileStreamer.Exists(GetFileName <TDataType>(indexName)));
}
}
public async Task <bool> ExistsWhenItDoesExist()
{
return(await FileStreamer.Exists(Filename));
}
