quick import of file structure

plugins/BinLogReader/PluginDb.cs

@@ -0,0 +1,110 @@
+using System;
+using System.Collections;
+using System.IO;
+using System.Text;
+
+namespace BinLogReader
+{
+	/// <summary>
+	/// Aggregates plugin information
+	/// </summary>
+	public class PluginDb
+	{
+		private static uint BINDB_MAGIC = 0x414D4244;
+		private static short BINDB_VERSION = 0x0100;
+		private ArrayList PluginList;
+
+		public PluginDb(uint plugins)
+		{
+			PluginList = new ArrayList((int)plugins);
+		}
+
+		public Plugin GetPluginById(ushort id)
+		{
+			return GetPluginById((int)id);
+		}
+
+		public Plugin GetPluginById(int id)
+		{
+			if (id < 0 || id >= PluginList.Count)
+				return null;
+
+			return (Plugin)PluginList[id];
+		}
+
+		public static PluginDb FromFile(string filename)
+		{
+			if (!File.Exists(filename))
+				return null;
+
+			System.IO.FileStream stream = File.Open(filename, System.IO.FileMode.Open);
+			if (stream == null)
+				return null;
+			BinaryReader br = new BinaryReader(stream);
+			if (br == null)
+				return null;
+
+			PluginDb db;
+
+			try
+			{
+				//check header
+				uint magic = br.ReadUInt32();
+				if (magic != BINDB_MAGIC)
+					throw new Exception("Invalid magic number");
+				//check version
+				ushort vers = br.ReadUInt16();
+				if (vers > BINDB_VERSION)
+					throw new Exception("Unknown version");
+				//read plugins
+				uint plugins = br.ReadUInt32();
+				db = new PluginDb(plugins);
+				for (uint i=0; i<plugins; i++)
+				{
+					byte status = br.ReadByte();
+					byte length = br.ReadByte();
+					byte [] name = br.ReadBytes(length + 1);
+					uint natives = br.ReadUInt32();
+					uint publics = br.ReadUInt32();
+					int id = db.CreatePlugin(
+						Encoding.ASCII.GetString(name, 0, length), 
+						(int)natives,
+						(int)publics, 
+						status);
+					Plugin pl = db.GetPluginById(id);
+					for (uint j=0; j<natives; j++)
+					{
+						length = br.ReadByte();
+						name = br.ReadBytes(length + 1);
+						pl.AddNative(Encoding.ASCII.GetString(name, 0, length));
+					}
+					for (uint j=0; j<publics; j++)
+					{
+						length = br.ReadByte();
+						name = br.ReadBytes(length + 1);
+						pl.AddPublic(Encoding.ASCII.GetString(name, 0, length));
+					}
+				}
+			} 
+			catch 
+			{
+				throw new Exception("File is corrupt");
+			} 
+			finally 
+			{
+				br.Close();
+				stream.Close();
+				GC.Collect();
+			}
+
+			return db;
+		}
+
+		private int CreatePlugin(string file, int natives, int publics, byte status)
+		{
+			Plugin pl = new Plugin(file, natives, publics, status);
+			PluginList.Add(pl);
+			return PluginList.Count - 1;
+		}
+	}
+}