public TableLoggerProvider(AzureLoggerSettings settings)
{
if (settings == null)
{
throw new ArgumentNullException(nameof(settings));
}
this.settings = settings;
var cloud = CloudStorageAccount.Parse(settings.ConnectionString);
this.client = cloud.CreateCloudTableClient();
this.table = client.GetTableReference(settings.Table);
this.blobClient = cloud.CreateCloudBlobClient();
if (!string.IsNullOrEmpty(settings.OverflowContainer))
{
this.container = this.blobClient.GetContainerReference(settings.OverflowContainer);
}
this.batchBlock = new BatchBlock <DynamicTableEntity>(25);
Timer triggerBatchTimer = new Timer((_) => this.batchBlock.TriggerBatch(), null, Timeout.Infinite, Timeout.Infinite);
pipeline = new TransformBlock <DynamicTableEntity, DynamicTableEntity>((value) =>
{
triggerBatchTimer.Change(5000, Timeout.Infinite);
return(value);
});
pipelineEnd = new ActionBlock <DynamicTableEntity[]>(WriteBatch);
pipeline.LinkTo(batchBlock);
batchBlock.LinkTo(pipelineEnd);
this.overflowBlock = new ActionBlock <KeyValuePair <string, string> >(WriteOverflow);
}
private Func <string, Microsoft.Extensions.Logging.LogLevel, bool> GetFilter(string name, AzureLoggerSettings settings)
{
if (filter != null)
{
return(filter);
}
if (settings != null)
{
foreach (var prefix in GetKeyPrefixes(name))
{
Microsoft.Extensions.Logging.LogLevel level;
if (settings.TryGetSwitch(prefix, out level))
{
this.filter = (n, l) => l >= level;
return(this.filter);
}
}
}
this.filter = (n, l) => false;
return(this.filter);
}