X-Git-Url: http://wagnertech.de/git?p=mcloud.git;a=blobdiff_plain;f=util%2FConfig.cs;fp=util%2FConfig.cs;h=d9d2a43d52bbfd956b88d7e0680afcb1a8846dea;hp=0000000000000000000000000000000000000000;hb=a82796d64877d73d6fd2ee86140ee788b16d402e;hpb=fd98c53230d650456bb9f0114a93d17280460809

diff --git a/util/Config.cs b/util/Config.cs
new file mode 100644
index 0000000..d9d2a43
--- /dev/null
+++ b/util/Config.cs
@@ -0,0 +1,155 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+
+
+namespace util
+{
+	internal class ConfigEntry
+	{
+		public string value;
+		public ISet<string> list;
+		public ConfigEntry(string v)
+		{
+			this.value = v;
+		}
+	}
+
+	public static class Config
+	{
+		private static Dictionary<String,Dictionary<string,ConfigEntry>> Data;
+		private static bool ready = false;
+		private static string file_name;
+
+		// return values for Load
+		public const int LOAD_OK = 0;
+		public const int LOAD_NO_INPUT_FILE = 1;
+		public static int Load (String FileName)
+		{
+			Config.file_name = FileName;
+			Data = new Dictionary<string, Dictionary<string,ConfigEntry>>();
+
+			if (!System.IO.File.Exists (FileName)) {
+				ready = true;
+				return LOAD_NO_INPUT_FILE;
+			}
+
+			using (StreamReader File = new StreamReader (FileName)) {
+				String Line;
+				string section = null;
+				string key = "no_key";
+				Dictionary<string,ConfigEntry> SectionDic = null;
+				bool listProcessing = false;
+				while (File.Peek() != -1) {
+					Line = File.ReadLine ();
+					if (listProcessing) {
+						if (Line == "LIST")
+							listProcessing = false;
+						else
+							SectionDic [key].list.Add (Line);
+					} else if (Line.Length == 0 || Line.Substring (0, 1) == "#") {
+						; // this is a comment line
+					} else if (Line.Substring (0, 1) == "[") {
+						// new section
+						if (section != null) {
+							// append old section
+							Data [section] = SectionDic;
+						}
+						// start new section
+						section = Line.Substring (1, Line.IndexOf (']') - 1);
+						SectionDic = new Dictionary<string, ConfigEntry> ();
+					} else {
+						key = Line.Substring (0, Line.IndexOf (':'));
+						String Value = Line.Substring (Line.IndexOf (':') + 1);
+						var ce = new ConfigEntry (Value);
+						if (Value == "LIST") {
+							listProcessing = true;
+							ce.list = new SortedSet<string> ();
+						}
+						SectionDic [key] = ce;
+					}
+				}
+				if (listProcessing)
+					throw new ApplicationException ("Configuration list has no end");
+				if (SectionDic != null) Data [section] = SectionDic;
+			}
+			ready = true;
+			return LOAD_OK;
+		}
+		/*
+		public static Config GetInstance()
+		{
+			if (Config.Instance == null) Config.Instance = new Config ();
+			return Config.Instance;
+		}*/
+		public static String GetConfig(string section, string key){
+			Check ();
+			if (Data.ContainsKey(section)){
+				if (Data[section].ContainsKey(key)) return Data [section][key].value;
+			}
+			return null;
+		}
+		public static ISet<string> GetList(string section, string key){
+			Check ();
+			if (!Data.ContainsKey (section))
+				return null;
+			if (!Data [section].ContainsKey (key))
+				return null;
+			if (Data [section] [key].value != "LIST")
+				throw new ApplicationException ("Required List-Config is not a list");
+			return Data [section] [key].list;
+		}
+		public static ISet<string> RequireList(string section, string key){
+			ISet<string> result = GetList (section, key);
+			if (result == null)
+				throw new ApplicationException ("Config missing:"+ section+ key);
+			return result;
+		}
+		public static String RequireConfig(string section, string key){
+			string value = GetConfig (section, key);
+			if (value == null)
+				throw new ApplicationException ("No Config Entry for " + section + "/"+key);
+			return value;
+		}
+		public static void Set(string section, string key, string value){
+			Check ();
+			if (! Data.ContainsKey (section)) {
+				Data [section] = new Dictionary<string, ConfigEntry> ();
+			}
+			Data [section] [key] = new ConfigEntry(value);
+		}
+		public static void Set(string section, string key, ISet<string> value){
+			Set (section, key, "LIST");
+			Data [section] [key].list = value;
+		}
+		public static void Write(){
+			Check ();
+			StreamWriter File = new StreamWriter (Config.file_name, false);
+			foreach (var section in Data) {
+				File.WriteLine ();
+				File.WriteLine ("[" + section.Key + "]");
+				foreach (var elem in section.Value) {
+					File.WriteLine (elem.Key + ":" + elem.Value.value);
+					if (elem.Value.value == "LIST") {
+						foreach (string list_ele in elem.Value.list) {
+							File.WriteLine (list_ele);
+						}
+						File.WriteLine ("LIST");
+					}
+				}
+			}
+			File.Close();
+		}
+		public static void Remove(string section)
+		{
+			Check ();
+			Data.Remove (section);
+		}
+		private static void Check()
+		{
+			if (!ready)
+				throw new ApplicationException ("Configuration data not loaded");
+		}
+	}
+}
+