Added support of custom matchers in static mappings (#713)

* Added support of custom matchers in static mappings

* Fixed code style issues

* Fixed naming and code style

* added empty line

* Ignore serialization of CustomMatcherMappings property in WireMockServerSettings

* Added integration tests for CustomMatcherMappings

src/WireMock.Net/Serialization/MatcherMapper.cs

@@ -105,6 +105,11 @@ namespace WireMock.Serialization
                     return new SimMetricsMatcher(matchBehaviour, stringPatterns, type, throwExceptionWhenMatcherFails);
 
                 default:
+                    if (_settings.CustomMatcherMappings != null && _settings.CustomMatcherMappings.ContainsKey(matcherName))
+                    {
+                        return _settings.CustomMatcherMappings[matcherName](matcher);
+                    }
+
                     throw new NotSupportedException($"Matcher '{matcherName}' is not supported.");
             }
         }

src/WireMock.Net/Settings/IWireMockServerSettings.cs

@@ -1,7 +1,10 @@
 using System;
+using System.Collections.Generic;
 using System.Text.RegularExpressions;
 using HandlebarsDotNet;
 using JetBrains.Annotations;
+using Newtonsoft.Json;
+using WireMock.Admin.Mappings;
 using WireMock.Handlers;
 using WireMock.Logging;
 using WireMock.Matchers;
@@ -229,5 +232,11 @@ namespace WireMock.Settings
         /// </summary>
         [PublicAPI]
         bool? SaveUnmatchedRequests { get; set; }
+
+        /// <summary>
+        /// Custom matcher mappings for static mappings
+        /// </summary>
+        [PublicAPI, JsonIgnore]
+        IDictionary<string, Func<MatcherModel, IMatcher>> CustomMatcherMappings { get; set; }
     }
 }

src/WireMock.Net/Settings/WireMockServerSettings.cs

@@ -1,9 +1,12 @@
 using System;
+using System.Collections.Generic;
 using HandlebarsDotNet;
 using JetBrains.Annotations;
 using Newtonsoft.Json;
+using WireMock.Admin.Mappings;
 using WireMock.Handlers;
 using WireMock.Logging;
+using WireMock.Matchers;
 #if USE_ASPNETCORE
 using Microsoft.Extensions.DependencyInjection;
 #endif
@@ -158,5 +161,9 @@ namespace WireMock.Settings
         /// <inheritdoc cref="IWireMockServerSettings.SaveUnmatchedRequests"/>
         [PublicAPI]
         public bool? SaveUnmatchedRequests { get; set; }
+
+        /// <inheritdoc cref="IWireMockServerSettings.CustomMatcherMappings"/>
+        [PublicAPI, JsonIgnore]
+        public IDictionary<string, Func<MatcherModel, IMatcher>> CustomMatcherMappings { get; set; }
     }
 }