| 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 | |
| 3 | namespace WixToolset.Harvesters |
| 4 | { |
| 5 | using System; |
| 6 | using System.Collections; |
| 7 | using WixToolset.Harvesters.Extensibility; |
| 8 | using Wix = WixToolset.Harvesters.Serialize; |
| 9 | |
| 10 | /// <summary> |
| 11 | /// The WiX Toolset mutator. |
| 12 | /// </summary> |
| 13 | internal class Mutator : IMutator |
| 14 | { |
| 15 | private SortedList extensions; |
| 16 | private string extensionArgument; |
| 17 | |
| 18 | /// <summary> |
| 19 | /// Instantiate a new mutator. |
| 20 | /// </summary> |
| 21 | public Mutator() |
| 22 | { |
| 23 | this.extensions = new SortedList(); |
| 24 | } |
| 25 | |
| 26 | public IHarvesterCore Core { get; set; } |
| 27 | |
| 28 | public string ExtensionArgument |
| 29 | { |
| 30 | get { return this.extensionArgument; } |
| 31 | set { this.extensionArgument = value; } |
| 32 | } |
| 33 | |
| 34 | public void AddExtension(IMutatorExtension mutatorExtension) |
| 35 | { |
| 36 | this.extensions.Add(mutatorExtension.Sequence, mutatorExtension); |
| 37 | } |
| 38 | |
| 39 | public bool Mutate(Wix.Wix wix) |
| 40 | { |
| 41 | bool encounteredError = false; |
| 42 | |
| 43 | try |
| 44 | { |
| 45 | foreach (IMutatorExtension mutatorExtension in this.extensions.Values) |
| 46 | { |
| 47 | if (null == mutatorExtension.Core) |
| 48 | { |
| 49 | mutatorExtension.Core = this.Core; |
| 50 | } |
| 51 | |
| 52 | mutatorExtension.Mutate(wix); |
| 53 | } |
| 54 | } |
| 55 | finally |
| 56 | { |
| 57 | encounteredError = this.Core.Messaging.EncounteredError; |
| 58 | } |
| 59 | |
| 60 | // return the Wix document element only if mutation completed successfully |
| 61 | return !encounteredError; |
| 62 | } |
| 63 | |
| 64 | public string Mutate(string wixString) |
| 65 | { |
| 66 | bool encounteredError = false; |
| 67 | |
| 68 | try |
| 69 | { |
| 70 | foreach (IMutatorExtension mutatorExtension in this.extensions.Values) |
| 71 | { |
| 72 | if (null == mutatorExtension.Core) |
| 73 | { |
| 74 | mutatorExtension.Core = this.Core; |
| 75 | } |
| 76 | |
| 77 | wixString = mutatorExtension.Mutate(wixString); |
| 78 | |
| 79 | if (String.IsNullOrEmpty(wixString) || this.Core.Messaging.EncounteredError) |
| 80 | { |
| 81 | break; |
| 82 | } |
| 83 | } |
| 84 | } |
| 85 | finally |
| 86 | { |
| 87 | encounteredError = this.Core.Messaging.EncounteredError; |
| 88 | } |
| 89 | |
| 90 | return encounteredError ? null : wixString; |
| 91 | } |
| 92 | } |
| 93 | } |