//===================================================================================
// Microsoft patterns & practices
// Composite Application Guidance for Windows Presentation Foundation and Silverlight
//===================================================================================
// Copyright (c) Microsoft Corporation. All rights reserved.
// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY
// OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT
// LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
// FITNESS FOR A PARTICULAR PURPOSE.
//===================================================================================
// The example companies, organizations, products, domain names,
// e-mail addresses, logos, people, places, and events depicted
// herein are fictitious. No association with any real company,
// organization, product, domain name, email address, logo, person,
// places, or events is intended or should be inferred.
//===================================================================================
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using Microsoft.Practices.Composite.Properties;
namespace Microsoft.Practices.Composite.Modularity
{
/// <summary>
/// A catalog built from a configuration file.
/// </summary>
public class ConfigurationModuleCatalog : ModuleCatalog
{
/// <summary>
/// Builds an instance of ConfigurationModuleCatalog with a <see cref="ConfigurationStore"/> as the default store.
/// </summary>
public ConfigurationModuleCatalog()
{
this.Store = new ConfigurationStore();
}
/// <summary>
/// Gets or sets the store where the configuration is kept.
/// </summary>
public IConfigurationStore Store { get; set; }
/// <summary>
/// Loads the catalog from the configuration.
/// </summary>
protected override void InnerLoad()
{
if (this.Store == null)
{
throw new InvalidOperationException(Resources.ConfigurationStoreCannotBeNull);
}
this.EnsureModulesDiscovered();
}
private static string GetFileAbsoluteUri(string filePath)
{
UriBuilder uriBuilder = new UriBuilder();
uriBuilder.Host = String.Empty;
uriBuilder.Scheme = Uri.UriSchemeFile;
uriBuilder.Path = Path.GetFullPath(filePath);
Uri fileUri = uriBuilder.Uri;
return fileUri.ToString();
}
private void EnsureModulesDiscovered()
{
ModulesConfigurationSection section = this.Store.RetrieveModuleConfigurationSection();
if (section != null)
{
foreach (ModuleConfigurationElement element in section.Modules)
{
IList<string> dependencies = new List<string>();
if (element.Dependencies.Count > 0)
{
foreach (ModuleDependencyConfigurationElement dependency in element.Dependencies)
{
dependencies.Add(dependency.ModuleName);
}
}
ModuleInfo moduleInfo = new ModuleInfo(element.ModuleName, element.ModuleType)
{
Ref = GetFileAbsoluteUri(element.AssemblyFile),
InitializationMode = element.StartupLoaded ? InitializationMode.WhenAvailable : InitializationMode.OnDemand
};
moduleInfo.DependsOn.AddRange(dependencies.ToArray());
AddModule(moduleInfo);
}
}
}
}
}