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Diffstat (limited to 'src/ext/Bal/WixToolset.Mba.Host/BootstrapperApplicationFactory.cs')
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diff --git a/src/ext/Bal/WixToolset.Mba.Host/BootstrapperApplicationFactory.cs b/src/ext/Bal/WixToolset.Mba.Host/BootstrapperApplicationFactory.cs
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index 78e68bd9..00000000
--- a/src/ext/Bal/WixToolset.Mba.Host/BootstrapperApplicationFactory.cs
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@@ -1,86 +0,0 @@
1// 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.
2
3namespace WixToolset.Mba.Host
4{
5 using System;
6 using System.Configuration;
7 using System.Reflection;
8 using System.Runtime.InteropServices;
9 using WixToolset.Mba.Core;
10
11 /// <summary>
12 /// Entry point for the managed host to create and return the BA to the engine.
13 /// </summary>
14 [ClassInterface(ClassInterfaceType.None)]
15 public sealed class BootstrapperApplicationFactory : MarshalByRefObject, IBootstrapperApplicationFactory
16 {
17 /// <summary>
18 /// Creates a new instance of the <see cref="BootstrapperApplicationFactory"/> class.
19 /// Entry point for the MBA host.
20 /// </summary>
21 public BootstrapperApplicationFactory()
22 {
23 }
24
25 /// <summary>
26 /// Loads the bootstrapper application assembly and calls its IBootstrapperApplicationFactory.Create method.
27 /// </summary>
28 /// <param name="pArgs">Pointer to BOOTSTRAPPER_CREATE_ARGS struct.</param>
29 /// <param name="pResults">Pointer to BOOTSTRAPPER_CREATE_RESULTS struct.</param>
30 /// <exception cref="MissingAttributeException">The bootstrapper application assembly
31 /// does not define the <see cref="BootstrapperApplicationFactoryAttribute"/>.</exception>
32 public void Create(IntPtr pArgs, IntPtr pResults)
33 {
34 // Get the wix.boostrapper section group to get the name of the bootstrapper application assembly to host.
35 var section = ConfigurationManager.GetSection("wix.bootstrapper/host") as HostSection;
36 if (null == section)
37 {
38 throw new MissingAttributeException(); // TODO: throw a more specific exception than this.
39 }
40
41 // Load the BA's IBootstrapperApplicationFactory.
42 var baFactoryType = BootstrapperApplicationFactory.GetBAFactoryTypeFromAssembly(section.AssemblyName);
43 var baFactory = (IBootstrapperApplicationFactory)Activator.CreateInstance(baFactoryType);
44 if (null == baFactory)
45 {
46 throw new InvalidBootstrapperApplicationFactoryException();
47 }
48
49 baFactory.Create(pArgs, pResults);
50 }
51
52 /// <summary>
53 /// Locates the <see cref="BootstrapperApplicationFactoryAttribute"/> and returns the specified type.
54 /// </summary>
55 /// <param name="assemblyName">The assembly that defines the IBootstrapperApplicationFactory implementation.</param>
56 /// <returns>The bootstrapper application factory <see cref="Type"/>.</returns>
57 private static Type GetBAFactoryTypeFromAssembly(string assemblyName)
58 {
59 Type baFactoryType = null;
60
61 // Load the requested assembly.
62 Assembly asm = AppDomain.CurrentDomain.Load(assemblyName);
63
64 // If an assembly was loaded and is not the current assembly, check for the required attribute.
65 // This is done to avoid using the BootstrapperApplicationFactoryAttribute which we use at build time
66 // to specify the BootstrapperApplicationFactory assembly in the manifest.
67 if (!Assembly.GetExecutingAssembly().Equals(asm))
68 {
69 // There must be one and only one BootstrapperApplicationFactoryAttribute.
70 // The attribute prevents multiple declarations already.
71 var attrs = (BootstrapperApplicationFactoryAttribute[])asm.GetCustomAttributes(typeof(BootstrapperApplicationFactoryAttribute), false);
72 if (null != attrs)
73 {
74 baFactoryType = attrs[0].BootstrapperApplicationFactoryType;
75 }
76 }
77
78 if (null == baFactoryType)
79 {
80 throw new MissingAttributeException();
81 }
82
83 return baFactoryType;
84 }
85 }
86}