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// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
namespace WixToolset.Core.ExtensibilityServices
{
using System;
using System.Collections.Generic;
using WixToolset.Data;
using WixToolset.Extensibility;
using WixToolset.Extensibility.Services;
internal class TupleDefinitionCreator : ITupleDefinitionCreator
{
public TupleDefinitionCreator(IServiceProvider serviceProvider)
{
this.ServiceProvider = serviceProvider;
}
private IServiceProvider ServiceProvider { get; }
private IEnumerable<IExtensionData> ExtensionData { get; set; }
private Dictionary<string, IntermediateTupleDefinition> CustomDefinitionByName { get; } = new Dictionary<string, IntermediateTupleDefinition>();
public void AddCustomTupleDefinition(IntermediateTupleDefinition definition)
{
this.CustomDefinitionByName.Add(definition.Name, definition);
}
public bool TryGetTupleDefinitionByName(string name, out IntermediateTupleDefinition tupleDefinition)
{
// First, look in the built-ins.
tupleDefinition = TupleDefinitions.ByName(name);
if (tupleDefinition == null)
{
if (this.ExtensionData == null)
{
this.LoadExtensionData();
}
// Second, look in the extensions.
foreach (var data in this.ExtensionData)
{
if (data.TryGetTupleDefinitionByName(name, out tupleDefinition))
{
break;
}
}
// Finally, look in the custom tuple definitions provided during an intermediate load.
if (tupleDefinition == null)
{
this.CustomDefinitionByName.TryGetValue(name, out tupleDefinition);
}
}
return tupleDefinition != null;
}
private void LoadExtensionData()
{
var extensionManager = (IExtensionManager)this.ServiceProvider.GetService(typeof(IExtensionManager));
this.ExtensionData = extensionManager.Create<IExtensionData>();
}
}
}
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