Jared Broad
132 lines
4.8 KiB
C#
132 lines
4.8 KiB
C#
/*
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* QUANTCONNECT.COM - Democratizing Finance, Empowering Individuals.
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* Lean Algorithmic Trading Engine v2.0. Copyright 2014 QuantConnect Corporation.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/**********************************************************
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* USING NAMESPACES
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**********************************************************/
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using System;
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using System.Collections.Generic;
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using System.IO;
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using Newtonsoft.Json;
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using QuantConnect.Logging;
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namespace QuantConnect.Configuration
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{
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/********************************************************
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* CLASS DEFINITIONS
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*********************************************************/
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/// <summary>
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/// Configuration class loads the required external setup variables to launch the Lean engine.
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/// </summary>
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public static class Config
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{
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/********************************************************
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* CLASS VARIABLES
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*********************************************************/
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//Location of the configuration file.
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private const string _config = "config.json";
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//Has the configuration been loaded from disk:
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private static bool _loaded;
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/// Initialize the settings array and its defaults:
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private static Dictionary<string, string> _settings = new Dictionary<string, string>
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{
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//User configurable: Select which algorithm the engine can run.
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{"algorithm-type-name", "BasicTemplateAlgorithm"},
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//Engine code:
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{"local", "true"},
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{"livemode", "false"},
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{"messaging-handler", "QuantConnect.Messaging.Messaging"},
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{"task-handler", "QuantConnect.Tasks.Tasks"},
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{"controls-handler", "QuantConnect.Controls.Controls"}
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};
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/********************************************************
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* CLASS PROPERTIES
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*********************************************************/
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/********************************************************
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* CLASS METHODS:
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*********************************************************/
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/// <summary>
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/// Initialize the configuration file and if it doesnt exist create one with the default values above.
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/// </summary>
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private static void Initialize()
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{
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var file = "";
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if (_loaded) return;
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// if we find the configuration, load it, otherwise just stick with the defaults in _settings
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if (File.Exists(_config))
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{
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file = File.ReadAllText(_config);
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_settings = JsonConvert.DeserializeObject<Dictionary<string, string>>(file);
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Log.Trace("Config.Initialize(): Located Config.");
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}
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_loaded = true;
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}
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/// <summary>
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/// Get the matching config setting from the file searching for this key.
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/// </summary>
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/// <param name="key">String key value we're seaching for in the config file.</param>
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/// <returns>String value of the configuration setting or empty string if nothing found.</returns>
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public static string Get(string key)
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{
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var value = "";
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try
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{
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if (!_loaded) Initialize();
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if (_settings != null && _settings.ContainsKey(key))
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{
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value = _settings[key];
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}
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}
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catch (Exception err)
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{
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Log.Error("Config.Get(): " + err.Message);
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}
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return value;
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}
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/// <summary>
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/// Get a boolean value configuration setting by a configuration key.
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/// </summary>
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/// <param name="key">String value of the configuration key.</param>
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/// <returns>Boolean value of the config setting.</returns>
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public static bool GetBool(string key)
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{
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var value = Get(key);
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return (value != "false");
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}
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/// <summary>
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/// Get the int value of a config string.
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/// </summary>
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/// <param name="key">Search key from the config file</param>
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/// <returns>Int value of the config setting.</returns>
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public static int GetInt(string key)
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{
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var value = Get(key);
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return Convert.ToInt32(value);
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}
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}
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}
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