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Logging now writes to the database (#110)

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This commit is contained in:
Michael Green
2023-09-18 16:54:37 +10:00
committed by GitHub
parent 031edd7088
commit 67447d49b5
9 changed files with 131 additions and 86 deletions
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112
gaseous-tools/Logging.cs
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@@ -1,4 +1,5 @@
using System;
using System.Data;
using System.Diagnostics;
using System.Reflection;
using System.Reflection.Metadata.Ecma335;
@@ -7,12 +8,7 @@ namespace gaseous_tools
{
public class Logging
{
// when was the last clean
static DateTime LastRetentionClean = DateTime.UtcNow;
// how often to clean in hours
const int RetentionCleanInterval = 1;
static public void Log(LogType EventType, string ServerProcess, string Message, Exception? ExceptionValue = null)
static public void Log(LogType EventType, string ServerProcess, string Message, Exception? ExceptionValue = null, bool LogToDiskOnly = false)
{
LogItem logItem = new LogItem
{
@@ -20,7 +16,7 @@ namespace gaseous_tools
EventType = EventType,
Process = ServerProcess,
Message = Message,
ExceptionValue = ExceptionValue
ExceptionValue = Common.ReturnValueIfNull(ExceptionValue, "").ToString()
};
bool AllowWrite = false;
@@ -65,67 +61,73 @@ namespace gaseous_tools
Console.WriteLine(TraceOutput);
Console.ResetColor();
Newtonsoft.Json.JsonSerializerSettings serializerSettings = new Newtonsoft.Json.JsonSerializerSettings
if (LogToDiskOnly == false)
{
NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore,
Formatting = Newtonsoft.Json.Formatting.None
};
serializerSettings.Converters.Add(new Newtonsoft.Json.Converters.StringEnumConverter());
Database db = new gaseous_tools.Database(Database.databaseType.MySql, Config.DatabaseConfiguration.ConnectionString);
string sql = "DELETE FROM ServerLogs WHERE EventTime < @EventRententionDate; INSERT INTO ServerLogs (EventTime, EventType, Process, Message, Exception) VALUES (@EventTime, @EventType, @Process, @Message, @Exception);";
Dictionary<string, object> dbDict = new Dictionary<string, object>();
dbDict.Add("EventRententionDate", DateTime.UtcNow.AddDays(Config.LoggingConfiguration.LogRetention * -1));
dbDict.Add("EventTime", logItem.EventTime);
dbDict.Add("EventType", logItem.EventType);
dbDict.Add("Process", logItem.Process);
dbDict.Add("Message", logItem.Message);
dbDict.Add("Exception", Common.ReturnValueIfNull(logItem.ExceptionValue, "").ToString());
// write log file
string JsonOutput = Newtonsoft.Json.JsonConvert.SerializeObject(logItem, serializerSettings);
File.AppendAllText(Config.LogFilePath, JsonOutput);
}
// quick clean before we go
if (LastRetentionClean.AddHours(RetentionCleanInterval) < DateTime.UtcNow)
{
LogCleanup();
try
{
db.ExecuteCMD(sql, dbDict);
}
catch (Exception ex)
{
LogToDisk(logItem, TraceOutput, ex);
}
}
else
{
LogToDisk(logItem, TraceOutput, null);
}
}
}
static public List<LogItem> GetLogs() {
string logData = File.ReadAllText(Config.LogFilePath);
static void LogToDisk(LogItem logItem, string TraceOutput, Exception? exception)
{
if (exception != null)
{
// dump the error
File.AppendAllText(Config.LogFilePath, logItem.EventTime.ToString("yyyyMMdd HHmmss") + ": " + logItem.EventType.ToString() + ": " + logItem.Process + ": " + logItem.Message + Environment.NewLine + exception.ToString());
// something went wrong writing to the db
File.AppendAllText(Config.LogFilePath, logItem.EventTime.ToString("yyyyMMdd HHmmss") + ": The following event was unable to be written to the log database:");
}
File.AppendAllText(Config.LogFilePath, TraceOutput);
}
static public List<LogItem> GetLogs()
{
Database db = new gaseous_tools.Database(Database.databaseType.MySql, Config.DatabaseConfiguration.ConnectionString);
string sql = "SELECT * FROM ServerLogs ORDER BY Id DESC";
DataTable dataTable = db.ExecuteCMD(sql);
List<LogItem> logs = new List<LogItem>();
if (File.Exists(Config.LogFilePath))
foreach (DataRow row in dataTable.Rows)
{
StreamReader sr = new StreamReader(Config.LogFilePath);
while (!sr.EndOfStream)
LogItem log = new LogItem
{
LogItem logItem = Newtonsoft.Json.JsonConvert.DeserializeObject<LogItem>(sr.ReadLine());
logs.Add(logItem);
}
logs.Reverse();
EventTime = DateTime.Parse(((DateTime)row["EventTime"]).ToString("yyyy-MM-ddThh:mm:ss") + 'Z'),
EventType = (LogType)row["EventType"],
Process = (string)row["Process"],
Message = (string)row["Message"],
ExceptionValue = (string)row["Exception"]
};
logs.Add(log);
}
return logs;
}
static public void LogCleanup()
{
Log(LogType.Information, "Log Cleanup", "Purging log files older than " + Config.LoggingConfiguration.LogRetention + " days");
LastRetentionClean = DateTime.UtcNow;
string[] files = Directory.GetFiles(Config.LogPath, "Server Log *.json");
foreach (string file in files)
{
FileInfo fi = new FileInfo(file);
if (fi.LastAccessTime.AddDays(Config.LoggingConfiguration.LogRetention) < DateTime.Now)
{
try
{
fi.Delete();
}
catch
{
Log(LogType.Warning, "Log Cleanup", "Failed purging log " + fi.FullName);
}
}
}
}
public enum LogType
{
Information = 0,
@@ -151,7 +153,7 @@ namespace gaseous_tools
_Message = value;
}
}
public Exception? ExceptionValue { get; set; }
public string? ExceptionValue { get; set; }
}
}
}