internal static void Truncate(QLogEntry log)
{
log.Area = TruncateString(log.Area, AREA_MAX_LENGTH);
log.AreaColor = TruncateString(log.AreaColor, AREA_COLOR_MAX_LENGTH);
log.ThreadId = TruncateString(log.ThreadId, THREAD_ID_MAX_LENGTH);
log.SessionId = TruncateString(log.SessionId, SESSION_ID_MAX_LENGTH);
log.UserAgent = TruncateString(log.UserAgent, USER_AGENT_MAX_LENGTH);
log.UserHost = TruncateString(log.UserHost, USER_HOST_MAX_LENGTH);
log.Class = TruncateString(log.Class, CLASS_MAX_LENGTH);
log.Method = TruncateString(log.Method, METHOD_MAX_LENGTH);
}
/// <summary>
/// Saves single log entry in data source.
/// </summary>
/// <param name="log"></param>
public void Save(QLogEntry log)
{
CloudStorageAccount storageAccount = GetStorageAccount();
CloudTableClient tableClient = storageAccount.CreateCloudTableClient();
string tableName = GetTableName(log);
CloudTable table = tableClient.GetTableReference(tableName);
table.CreateIfNotExists();
log.PartitionKey = log.CreatedOn.ToString("HH");
log.RowKey = String.Format("{0}{1}", (DateTime.MaxValue - log.CreatedOn).Ticks.ToString("d19"), log.Guid.ToString("N"));
log.Message = log.Message.Trim();
table.Execute(TableOperation.Insert(log));
}
/// <summary>
/// Returns QLog entry basing on the passed informations
/// </summary>
/// <param name="area"></param>
/// <param name="msg"></param>
/// <param name="className"></param>
/// <param name="methodName"></param>
/// <returns></returns>
public QLogEntry GetLog(Type area, string msg, string className, string methodName)
{
QLogEntry result = new QLogEntry();
result.Guid = Guid.NewGuid();
result.Message = msg;
result.Area = area.Name;
result.AreaColor = AreaHelper.GetAreaColor(area);
result.ThreadId = Thread.CurrentThread.ManagedThreadId.ToString();
result.SessionId = GetSessionId();
result.UserAgent = GetUserAgent();
result.UserHost = GetUserHost();
result.Class = className;
result.Method = methodName;
result.InstanceId = GetInstanceId();
result.DeploymentId = GetDeploymentId();
result.CreatedOn = DateTime.UtcNow;
TruncateHelper.Truncate(result);
return result;
}
public void Save(QLogEntry log)
{
Debug.WriteLine("{0} :: {1}", log.Area, log.Message);
}
private string GetTableName(QLogEntry log)
{
string tableName = String.Format(DEFAULT_TABLE_NAME, log.CreatedOn.ToString("yyyyMMdd"));
if (!String.IsNullOrWhiteSpace(ComponentsService.Config.GetDataSourcePostfix()))
{
tableName = String.Format(POSTFIX_TABLE_NAME, ComponentsService.Config.GetDataSourcePostfix().ToLower(), log.CreatedOn.ToString("yyyyMMdd"));
}
return tableName;
}
/// <summary>
/// Saves single QLog entry in to the buffer and returns information whether buffer is full and should be flushed
/// </summary>
/// <param name="log"></param>
/// <param name="isBufferFull"></param>
public void Enqueue(QLogEntry log, out bool isBufferFull)
{
isBufferFull = false;
if (!EnqueueWithAdditionalBuffer(log, out isBufferFull))
EnqueueLogWithStaticBuffer(log, out isBufferFull);
}
/// <summary>
/// Tries to enqueue an object with an additional buffer. If it's not possible - returns false.
/// </summary>
/// <returns></returns>
private bool EnqueueWithAdditionalBuffer(QLogEntry log, out bool isBufferFull)
{
isBufferFull = false;
if ((HttpContext.Current == null) || (HttpContext.Current.Items == null))
return false;
if (HttpContext.Current.Items[LOGS_QUEUE_KEY] != null)
{
Queue<QLogEntry> logEntries = (Queue<QLogEntry>)HttpContext.Current.Items[LOGS_QUEUE_KEY];
logEntries.Enqueue(log);
}
else
{
Queue<QLogEntry> logEntries = new Queue<QLogEntry>();
logEntries.Enqueue(log);
HttpContext.Current.Items[LOGS_QUEUE_KEY] = logEntries;
}
if (IsRequestBufferFull())
isBufferFull = true;
return true;
}
/// <summary>
/// Enqueues log entry using static queue buffer _logEntries
/// </summary>
/// <param name="log"></param>
/// <param name="isBufferFull"></param>
private void EnqueueLogWithStaticBuffer(QLogEntry log, out bool isBufferFull)
{
isBufferFull = false;
lock (_locker)
{
_logEntries.Enqueue(log);
if (IsStaticBufferFull())
isBufferFull = true;
}
}
