Initial checkin for Reverse Engineering #1601
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,41 @@ | ||
| // Copyright (c) Microsoft Open Technologies, Inc. All rights reserved. | ||
| // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information. | ||
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| using System; | ||
| using System.Collections.Generic; | ||
| using JetBrains.Annotations; | ||
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| namespace Microsoft.Data.Entity.Commands.Utilities | ||
| { | ||
| public class ServiceProvider : IServiceProvider | ||
|
There was a problem hiding this comment. Can DesignTimeServices be reused instead? There was a problem hiding this comment. Hmm. I'll look into it. They work slightly differently - this one would use the "design-time" services first and only use the "runtime" services if it can't find the service there. That allows you to override if that's what you want (this was taken from a similar class in Scaffolding). Plus the list of services in DesignTimeServices is hard-coded. But I don't currently use the override functionality and I could hard-code the ILogger service. I won't block on this if that's OK? There was a problem hiding this comment. Interesting. DesignTimeServices is designed the other way around--let the user optionally override design-time services. We may need mechanisms for both. |
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| { | ||
| private IServiceProvider _backupServiceProvider; | ||
| private Dictionary<Type, object> _localServices = new Dictionary<Type, object>(); | ||
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| public ServiceProvider([CanBeNull]IServiceProvider backupServiceProvider) | ||
| { | ||
| _backupServiceProvider = backupServiceProvider; | ||
| } | ||
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| public void AddService(Type type, object service) | ||
| { | ||
| _localServices.Add(type, service); | ||
| } | ||
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| public object GetService(Type serviceType) | ||
| { | ||
| object service; | ||
| if (_localServices.TryGetValue(serviceType, out service)) | ||
| { | ||
| return service; | ||
| } | ||
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| if (_backupServiceProvider != null) | ||
| { | ||
| return _backupServiceProvider.GetService(serviceType); | ||
| } | ||
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| return null; | ||
| } | ||
| } | ||
| } | ||
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Should probably add a
DatabaseToolclass and do this in the constructor the same way asMigrationTool.There was a problem hiding this comment.
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OK. I hadn't bothered since the class (unlike
MigrationTool) would only have one method, but I can do that. Would probably call itReverseEngineeringToolthough.There was a problem hiding this comment.
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I was thinking it could contain other commands that involve pointing to a database with no context. One example we've talked about is a command to drop the database.
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Done.