/// <inheritdoc />
public async Task <Possible <string, Failure> > ShutdownAsync()
{
Contract.Requires(!IsShutdown);
m_isShutdown = true;
try
{
try
{
GetStatsResult stats = await m_cache.GetStatsAsync(new Context(m_logger));
if (stats.Succeeded)
{
using (Stream fileStream = m_fileSystem.Open(m_statsFile, FileAccess.ReadWrite, FileMode.CreateNew, FileShare.None))
{
using (StreamWriter sw = new StreamWriter(fileStream))
{
foreach (KeyValuePair <string, long> stat in stats.CounterSet.ToDictionaryIntegral())
{
await sw.WriteLineAsync($"{stat.Key}={stat.Value}");
}
}
}
}
else
{
m_logger.Debug($"Stats call failed {stats.ErrorMessage}");
}
}
#pragma warning disable ERP022 // Unobserved exception in generic exception handler
catch
{
}
#pragma warning restore ERP022 // Unobserved exception in generic exception handler
BoolResult shutdownResult = await m_cache.ShutdownAsync(new Context(m_logger));
if (shutdownResult.Succeeded)
{
return(CacheId.ToString());
}
return(new CacheFailure(shutdownResult.ErrorMessage));
}
finally
{
Dispose();
}
}
static string IdToString(CacheId id) =>
id.IsCategory
? id.ToString()
: $"{id}.dat";