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// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved. See License.txt in the project root for license information.
namespace System.Data.Entity
{
using System.Globalization;
using System.Reflection;
using System.Resources;
/// <summary>
/// Locates localized resources for an assembly
/// </summary>
public class AssemblyResourceLookup
{
private readonly Assembly _assembly;
private readonly ResourceManager _resourceManager;
/// <summary>
/// Initializes a new instance of the AssemblyResourceLookup class.
/// </summary>
/// <param name="assembly"> Assembly that resources belong to </param>
public AssemblyResourceLookup(Assembly assembly)
: this(assembly, ResourceUtilities.BuildResourceManager(assembly))
{
}
/// <summary>
/// Initializes a new instance of the AssemblyResourceLookup class.
/// </summary>
/// <param name="assembly"> Assembly that resources belong to </param>
/// <param name="resourceTable"> Resource table to lookup strings in </param>
public AssemblyResourceLookup(Assembly assembly, string resourceTable)
: this(assembly, new ResourceManager(resourceTable, assembly))
{
}
private AssemblyResourceLookup(Assembly assembly, ResourceManager manager)
{
ExceptionHelpers.CheckArgumentNotNull(assembly, "assembly");
_assembly = assembly;
_resourceManager = manager;
}
/// <summary>
/// Finds a specific string resource
/// </summary>
/// <param name="resourceKey"> Key of the resource to be located </param>
/// <returns> The localized resource value </returns>
public string LookupString(string resourceKey)
{
var messageFromResources = _resourceManager.GetString(resourceKey);
if (messageFromResources == null)
{
throw new ArgumentException(
string.Format(
CultureInfo.InvariantCulture,
"No string with key {0} was found in resource table {1} in assembly {2}.",
resourceKey,
_resourceManager.BaseName,
_assembly.FullName));
}
return messageFromResources;
}
}
}
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