1.9.0 client with elastic 1.7.5 GetIndex (all) fails with exception.

[niemyjski]

I'm calling _client.GetIndex(d => d.AllIndices()); because I want to get all indices... This throw the following error:

Newtonsoft.Json.JsonSerializationException
Error converting value "_none_" to type 'System.Collections.Generic.IEnumerable`1[System.String]'. Path 'default.stopwords', line 1, position 49211.
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.EnsureType(JsonReader reader, Object value, CultureInfo culture, JsonContract contract, Type targetType)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.SetPropertyValue(JsonProperty property, JsonConverter propertyConverter, JsonContainerContract containerContract, JsonProperty containerProperty, JsonReader reader, Object target)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.PopulateObject(Object newObject, JsonReader reader, JsonObjectContract contract, JsonProperty member, String id)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateObject(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.Deserialize(JsonReader reader, Type objectType, Boolean checkAdditionalContent)
   at Nest.AnalyzerCollectionConverter.ReadJson(JsonReader reader, Type objectType, Object existingValue, JsonSerializer serializer) in c:\code\elasticsearch-net\src\Nest\Resolvers\Converters\AnalyzerCollectionConverter.cs:line 52
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.DeserializeConvertable(JsonConverter converter, JsonReader reader, Type objectType, Object existingValue)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.Deserialize(JsonReader reader, Type objectType, Boolean checkAdditionalContent)
   at Newtonsoft.Json.JsonSerializer.Deserialize[T](JsonReader reader)
   at Nest.Resolvers.Converters.AnalysisSettingsConverter.ReadJson(JsonReader reader, Type objectType, Object existingValue, JsonSerializer serializer) in c:\code\elasticsearch-net\src\Nest\Resolvers\Converters\AnalysisSettingsConverter.cs:line 48
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.DeserializeConvertable(JsonConverter converter, JsonReader reader, Type objectType, Object existingValue)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.Deserialize(JsonReader reader, Type objectType, Boolean checkAdditionalContent)
   at Newtonsoft.Json.JsonSerializer.Deserialize[T](JsonReader reader)
   at Nest.Resolvers.Converters.IndexSettingsConverter.ReadJson(JsonReader reader, Type objectType, Object existingValue, JsonSerializer serializer) in c:\code\elasticsearch-net\src\Nest\Resolvers\Converters\IndexSettingsConverter.cs:line 138
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.DeserializeConvertable(JsonConverter converter, JsonReader reader, Type objectType, Object existingValue)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.PopulateDictionary(IDictionary dictionary, JsonReader reader, JsonDictionaryContract contract, JsonProperty containerProperty, String id)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateObject(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.Deserialize(JsonReader reader, Type objectType, Boolean checkAdditionalContent)
   at Newtonsoft.Json.JsonSerializer.DeserializeInternal(JsonReader reader, Type objectType)
   at Nest.NestSerializer.DeserializeUsingSettings[T](Stream stream, JsonSerializerSettings settings) in c:\code\elasticsearch-net\src\Nest\ExposedInternals\NestSerializer.cs:line 105
   at Nest.NestSerializer.Deserialize[T](Stream stream) in c:\code\elasticsearch-net\src\Nest\ExposedInternals\NestSerializer.cs:line 85
   at Nest.ElasticClient.DeserializeGetIndexResponse(IElasticsearchResponse response, Stream stream) in c:\code\elasticsearch-net\src\Nest\ElasticClient-GetIndex.cs:line 60
   at Elasticsearch.Net.Connection.RequestHandlers.RequestHandler.StreamToTypedResponse[T](ElasticsearchResponse`1 streamResponse, ITransportRequestState requestState, Byte[] readBytes) in c:\code\elasticsearch-net\src\Elasticsearch.Net\Connection\RequestHandlers\RequestHandler.cs:line 251
   at Elasticsearch.Net.Connection.RequestHandlers.RequestHandler.ReturnTypedResponse[T](TransportRequestState`1 requestState, ElasticsearchResponse`1 streamResponse, ElasticsearchServerError& error) in c:\code\elasticsearch-net\src\Elasticsearch.Net\Connection\RequestHandlers\RequestHandler.cs:line 115
   at Elasticsearch.Net.Connection.RequestHandlers.RequestHandler.CoordinateRequest[T](TransportRequestState`1 requestState, Int32 maxRetries, Int32 retried, Boolean& aliveResponse) in c:\code\elasticsearch-net\src\Elasticsearch.Net\Connection\RequestHandlers\RequestHandler.cs:line 134
   at Elasticsearch.Net.Connection.RequestHandlers.RequestHandler.DoRequest[T](TransportRequestState`1 requestState) in c:\code\elasticsearch-net\src\Elasticsearch.Net\Connection\RequestHandlers\RequestHandler.cs:line 177
   at Elasticsearch.Net.Connection.RequestHandlers.RequestHandler.Request[T](TransportRequestState`1 requestState, Object data) in c:\code\elasticsearch-net\src\Elasticsearch.Net\Connection\RequestHandlers\RequestHandler.cs:line 34
   at Elasticsearch.Net.Connection.Transport.DoRequest[T](String method, String path, Object data, IRequestParameters requestParameters) in c:\code\elasticsearch-net\src\Elasticsearch.Net\Connection\Transport.cs:line 343
   at Elasticsearch.Net.ElasticsearchClient.IndicesGet[T](String index, Func`2 requestParameters) in c:\code\elasticsearch-net\src\Elasticsearch.Net\ElasticsearchClient.Generated.cs:line 15176
   at Nest.ElasticClient.Nest.IHighLevelToLowLevelDispatcher.Dispatch[D,Q,R](D descriptor, Func`3 dispatch) in c:\code\elasticsearch-net\src\Nest\ElasticClient.cs:line 74
   at Foundatio.Repositories.Elasticsearch.Configuration.VersionedIndex.GetVersion() in C:\Code\Foundatio.Repositories\src\Elasticsearch\Configuration\VersionedIndex.cs:line 83
   at Foundatio.Repositories.Elasticsearch.Configuration.VersionedIndex.ReindexAsync(Func`3 progressCallbackAsync) in C:\Code\Foundatio.Repositories\src\Elasticsearch\Configuration\VersionedIndex.cs:line 65
   at Foundatio.Repositories.Elasticsearch.Tests.IndexTests.<CanReindexVersionedIndex>d__7.MoveNext() in C:\Code\Foundatio.Repositories\src\Elasticsearch\Tests\IndexTests.cs:line 181
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Xunit.Sdk.TestInvoker`1.<>c__DisplayClass46_1.<<InvokeTestMethodAsync>b__1>d.MoveNext() in C:\BuildAgent\work\cb37e9acf085d108\src\xunit.execution\Sdk\Frameworks\Runners\TestInvoker.cs:line 227
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Xunit.Sdk.ExecutionTimer.<AggregateAsync>d__4.MoveNext() in C:\BuildAgent\work\cb37e9acf085d108\src\xunit.execution\Sdk\Frameworks\ExecutionTimer.cs:line 48
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Xunit.Sdk.ExceptionAggregator.<RunAsync>d__9.MoveNext() in C:\BuildAgent\work\cb37e9acf085d108\src\xunit.core\Sdk\ExceptionAggregator.cs:line 90

System.ArgumentException
Could not cast or convert from System.String to System.Collections.Generic.IEnumerable`1[System.String].
   at Newtonsoft.Json.Utilities.ConvertUtils.EnsureTypeAssignable(Object value, Type initialType, Type targetType)
   at Newtonsoft.Json.Utilities.ConvertUtils.ConvertOrCast(Object initialValue, CultureInfo culture, Type targetType)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.EnsureType(JsonReader reader, Object value, CultureInfo culture, JsonContract contract, Type targetType)

It would be cool if I could have it return a filtered list using a wild card...

[Mpdreamz]

The error here is that in 1.x stop words are mapped in various ways either as string or list of strings.

In 2.x we created a special StopWords type that can deal with either with named stopwords _none_, _english_ or manual lists ["a", "the", ...]

Will work on a patch in 1.x that makes sure we can read json in either form and set it to either a string/IEnumerable destination on the POCO.

[niemyjski]

Thanks!