mirror of https://github.com/lidarr/Lidarr
76 lines
2.8 KiB
C#
76 lines
2.8 KiB
C#
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#region License
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//The contents of this file are subject to the Mozilla Public License
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//Version 1.1 (the "License"); you may not use this file except in
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//compliance with the License. You may obtain a copy of the License at
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//http://www.mozilla.org/MPL/
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//Software distributed under the License is distributed on an "AS IS"
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//basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
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//License for the specific language governing rights and limitations
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//under the License.
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#endregion
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using System;
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using System.Collections.Generic;
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using System.Reflection;
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using Migrator.Framework;
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using Migrator.Providers;
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namespace Migrator
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{
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/// <summary>
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/// Handles loading Provider implementations
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/// </summary>
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public class ProviderFactory
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{
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private static readonly Assembly providerAssembly;
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private static readonly Dictionary<String, object> dialects = new Dictionary<string, object>();
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static ProviderFactory()
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{
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//string directory = Path.GetDirectoryName(Assembly.GetExecutingAssembly().CodeBase);
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//string fullPath = Path.Combine(directory, "Migrator.Providers.dll");
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//if (fullPath.StartsWith("file:\\"))
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// fullPath = fullPath.Substring(6);
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//else if (fullPath.StartsWith("file:"))
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// fullPath = fullPath.Substring(5);
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providerAssembly = Assembly.GetAssembly(typeof(TransformationProvider));
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//providerAssembly = Assembly.LoadFrom("Migrator.Providers.dll");
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LoadDialects();
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}
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public static ITransformationProvider Create(string providerName, string connectionString)
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{
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object dialectInstance = DialectForProvider(providerName);
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MethodInfo mi = dialectInstance.GetType().GetMethod("NewProviderForDialect", new Type[] {typeof (String)});
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return (ITransformationProvider)mi.Invoke(dialectInstance, new object[] { connectionString });
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}
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public static object DialectForProvider(string providerName)
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{
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if (String.IsNullOrEmpty(providerName))
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return null;
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foreach (string key in dialects.Keys)
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{
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if (0 < key.IndexOf(providerName, StringComparison.InvariantCultureIgnoreCase))
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return dialects[key];
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}
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return null;
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}
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public static void LoadDialects()
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{
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Type dialectType = providerAssembly.GetType("Migrator.Providers.Dialect");
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foreach (Type t in providerAssembly.GetTypes())
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{
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if (t.IsSubclassOf(dialectType))
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{
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dialects.Add(t.FullName, Activator.CreateInstance(t, null));
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}
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}
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}
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}
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}
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