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//
// Configuration.cs
//
// Author:
// Jean-Philippe Bruyère <jp.bruyere@hotmail.com>
//
// Copyright (c) 2013-2017 Jean-Philippe Bruyère
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
using System;
using System.Reflection;
using System.IO;
using System.Collections.Generic;
using System.Threading;
namespace Crow
{
public class ConfigItem {
Type type;
internal object curVal;
bool parsingNeeded = false;
public ConfigItem(object newVal){
curVal = newVal;
}
public ConfigItem(string newVal){
curVal = newVal;
parsingNeeded = true;
}
public T GetValue<T>(){
if (type == null)
type = typeof(T);
if (parsingNeeded) {
MethodInfo miParse = type.GetMethod ("Parse", new Type[] {typeof(string)});
if (miParse != null)
curVal = miParse.Invoke (null, new object[]{ curVal });
parsingNeeded = false;
}
return (T)Convert.ChangeType (curVal, type);
}
public void Set(object value){
curVal = value;
}
}
/// <summary>
/// Application wide Configuration utility
/// </summary>
public static class Configuration
{
volatile static bool isDirty = false;
static string configPath, configFileName = "app.config";
static Dictionary<string, ConfigItem> items;
static Configuration ()
{
items = new Dictionary<string, ConfigItem> ();
string configRoot =
Path.Combine(
Environment.GetFolderPath(Environment.SpecialFolder.UserProfile),
".config");
Assembly a = Assembly.GetEntryAssembly ();
string appName = a.GetName().Name;
configPath = Path.Combine (configRoot, appName);
if (!Directory.Exists(configPath))
Directory.CreateDirectory (configPath);
string path = Path.Combine(configPath, configFileName);
if (File.Exists (path)) {
using (Stream s = new FileStream (path, FileMode.Open))
load (s);
} else {
string defaultConfigResID = appName + ".default.config";
bool found = false;
foreach (string resIds in a.GetManifestResourceNames()) {
if (string.Equals (defaultConfigResID, resIds, StringComparison.OrdinalIgnoreCase)) {
using (Stream s = a.GetManifestResourceStream (defaultConfigResID))
load (s);
found = true;
break;
}
}
if (!found)
Console.WriteLine ("No Default Config found. ({0})", defaultConfigResID);
}
startSavingThread ();
}
static void startSavingThread(){
Thread t = new Thread (savingThread);
t.IsBackground = true;
t.Start ();
}
static void savingThread(){
while(true){
if (isDirty) {
save ();
isDirty = false;
}
Thread.Sleep (1000);
}
}
public static T Get<T>(string key)
{
return !items.ContainsKey (key) ? default(T) : items [key].GetValue<T> ();
}
public static void Set<T>(string key, T value)
{
if (!items.ContainsKey (key)) {
lock(items)
items[key] = new ConfigItem (value);
}else
items[key].Set (value);
isDirty = true;
}
static void save(){
using (Stream s = new FileStream(Path.Combine(configPath, configFileName),FileMode.Create)){
using (StreamWriter sw = new StreamWriter (s)) {
lock (items) {
foreach (string key in items.Keys) {
sw.WriteLine (key + "=" + (string)items [key].curVal.ToString ());
}
}
}
}
}
static void load(Stream s){
using (StreamReader sr = new StreamReader (s)) {
while (!sr.EndOfStream) {
string l = sr.ReadLine();
if (string.IsNullOrEmpty (l.Trim ()))
continue;
string[] tmp = l.Trim ().Split ('=');
if (tmp.Length != 2)
continue;
items[tmp [0].Trim ()] = new ConfigItem(tmp [1].Trim ());
}
}
}
}
}
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