Click here to Skip to main content
15,860,844 members
Articles / Web Development / HTML

RaptorDB - The Document Store

Rate me:
Please Sign up or sign in to vote.
4.96/5 (278 votes)
24 Jul 2019CPOL86 min read 2.3M   16.3K   653  
NoSql, JSON based, Document store database with compiled .net map functions and automatic hybrid bitmap indexing and LINQ query filters (now with standalone Server mode, Backup and Active Restore, Transactions, Server side queries, MonoDroid support, HQ-Branch Replication, working in Linux, .net
using System;
using System.Collections.Generic;
using System.Text;
using System.Collections;
using System.Threading;
using System.IO;

namespace RaptorDB
{
    public interface ILog
    {
        void Debug(object msg, params object[] objs);
        void Error(object msg, params object[] objs);
        void Info(object msg, params object[] objs);
        void Warn(object msg, params object[] objs);
        void Fatal(object msg, params object[] objs);
    }

    internal class FileLogger
    {
        public static readonly FileLogger Instance = new FileLogger();
        private FileLogger()
        {
        }

        private Queue _que = new Queue();
        private StreamWriter _output;
        private string _filename;
        private int _sizeLimit = 0;
        private long _lastSize = 0;
        private DateTime _lastFileDate;
        private bool _showMethodName = false;
        private string _FilePath = "";
        System.Timers.Timer _saveTimer;

        public bool ShowMethodNames
        {
            get { return _showMethodName; }
        }

        public void Init(string filename, int sizelimitKB, bool showmethodnames)
        {
            _que = new Queue();
            _showMethodName = showmethodnames;
            _sizeLimit = sizelimitKB;
            _filename = filename;
            // handle folder names as well -> create dir etc.
            _FilePath = Path.GetDirectoryName(filename);
            if (_FilePath != "")
            {
                _FilePath = Directory.CreateDirectory(_FilePath).FullName;
                if (_FilePath.EndsWith("\\") == false)
                    _FilePath += "\\";
            }
            _output = new StreamWriter(filename, true);
            FileInfo fi = new FileInfo(filename);
            _lastSize = fi.Length;
            _lastFileDate = fi.LastWriteTime;

            _saveTimer = new System.Timers.Timer(500);
            _saveTimer.Elapsed += new System.Timers.ElapsedEventHandler(_saveTimer_Elapsed);
            _saveTimer.Enabled = true;
            _saveTimer.AutoReset = true;
        }

        void _saveTimer_Elapsed(object sender, System.Timers.ElapsedEventArgs e)
        {
            WriteData();
        }

        public void ShutDown()
        {
            _saveTimer.Enabled = false;
            WriteData();
            if (_output != null)
            {
                _output.Flush();
                _output.Close();
                _output = null;
            }
        }

        object _writelock = new object();
        private void WriteData()
        {
            if (_output == null)
                return;
            lock (_writelock)
            {
                while (_que.Count > 0)
                {
                    object o = _que.Dequeue();
                    if (_output != null && o != null)
                    {
                        if (_sizeLimit > 0)
                        {
                            // implement size limited logs
                            // implement rolling logs
                            #region [  rolling size limit ]
                            _lastSize += ("" + o).Length;
                            if (_lastSize > _sizeLimit * 1000)
                            {
                                _output.Flush();
                                _output.Close();
                                int count = 1;
                                while (File.Exists(_FilePath + Path.GetFileNameWithoutExtension(_filename) + "." + count.ToString("0000")))
                                    count++;

                                File.Move(_filename,
                                    _FilePath +
                                    Path.GetFileNameWithoutExtension(_filename) +
                                    "." + count.ToString("0000"));
                                _output = new StreamWriter(_filename, true);
                                _lastSize = 0;
                            }
                            #endregion
                        }
                        if (DateTime.Now.Subtract(_lastFileDate).Days > 0)
                        {
                            // implement date logs
                            #region [  rolling dates  ]
                            _output.Flush();
                            _output.Close();
                            int count = 1;
                            while (File.Exists(_FilePath + Path.GetFileNameWithoutExtension(_filename) + "." + count.ToString("0000")))
                            {
                                File.Move(_FilePath + Path.GetFileNameWithoutExtension(_filename) + "." + count.ToString("0000"),
                                   _FilePath +
                                   Path.GetFileNameWithoutExtension(_filename) +
                                   "." + count.ToString("0000") +
                                   "." + _lastFileDate.ToString("yyyy-MM-dd"));
                                count++;
                            }
                            File.Move(_filename,
                               _FilePath +
                               Path.GetFileNameWithoutExtension(_filename) +
                               "." + count.ToString("0000") +
                               "." + _lastFileDate.ToString("yyyy-MM-dd"));

                            _output = new StreamWriter(_filename, true);
                            _lastFileDate = DateTime.Now;
                            _lastSize = 0;
                            #endregion
                        }
                        _output.Write(o);
                    }
                }
                if (_output != null)
                    _output.Flush();
            }
        }

        private string FormatLog(string log, string type, string meth, string msg, object[] objs)
        {
            StringBuilder sb = new StringBuilder();
            sb.Append(DateTime.Now.ToString("yyyy-MM-dd hh:mm:ss"));
            sb.Append("|");
            sb.Append(log);
            sb.Append("|");
            sb.Append(Thread.CurrentThread.ManagedThreadId.ToString());
            sb.Append("|");
            sb.Append(type);
            sb.Append("|");
            sb.Append(meth);
            sb.Append("| ");
            sb.AppendLine(msg);

            if (objs != null)
                foreach (object o in objs)
                    sb.AppendLine("" + o);

            return sb.ToString();
        }

        private object _lock = new object();
        public void Log(string logtype, string type, string meth, string msg, params object[] objs)
        {
            lock (_lock)
                _que.Enqueue(FormatLog(logtype, type, meth, msg, objs));
        }
    }


    internal class logger : ILog
    {
        public logger(Type type)
        {
            typename = type.Namespace + "." + type.Name;
        }

        private string typename = "";

        private void log(string logtype, string msg, params object[] objs)
        {
            string meth = "";
            if (FileLogger.Instance.ShowMethodNames)
            {
                System.Diagnostics.StackTrace st = new System.Diagnostics.StackTrace(2);
                System.Diagnostics.StackFrame sf = st.GetFrame(0);
                meth = sf.GetMethod().Name;
            }
            FileLogger.Instance.Log(logtype, typename, meth, msg, objs);
        }

        #region ILog Members

        public void Debug(object msg, params object[] objs)
        {
            log("DEBUG", "" + msg, objs);
        }

        public void Error(object msg, params object[] objs)
        {
            log("ERROR", "" + msg, objs);
        }

        public void Info(object msg, params object[] objs)
        {
            log("INFO", "" + msg, objs);
        }

        public void Warn(object msg, params object[] objs)
        {
            log("WARN", "" + msg, objs);
        }

        public void Fatal(object msg, params object[] objs)
        {
            log("FATAL", "" + msg, objs);
        }
        #endregion
    }

    public static class LogManager
    {
        public static ILog GetLogger(Type obj)
        {
            return new logger(obj);
        }

        public static void Configure(string filename, int sizelimitKB, bool showmethodnames)
        {
            FileLogger.Instance.Init(filename, sizelimitKB, showmethodnames);
        }

        public static void Shutdown()
        {
            FileLogger.Instance.ShutDown();
        }
    }

}

By viewing downloads associated with this article you agree to the Terms of Service and the article's licence.

If a file you wish to view isn't highlighted, and is a text file (not binary), please let us know and we'll add colourisation support for it.

License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)


Written By
Architect -
United Kingdom United Kingdom
Mehdi first started programming when he was 8 on BBC+128k machine in 6512 processor language, after various hardware and software changes he eventually came across .net and c# which he has been using since v1.0.
He is formally educated as a system analyst Industrial engineer, but his programming passion continues.

* Mehdi is the 5th person to get 6 out of 7 Platinum's on Code-Project (13th Jan'12)
* Mehdi is the 3rd person to get 7 out of 7 Platinum's on Code-Project (26th Aug'16)

Comments and Discussions