Experience Extractor - Parse issue

[SamridhiSachdeva]

Hello.
I installed ExperienceExtractor-0.3.0 on Sitecore 8.2 and got following error.

System.Collections.Generic.KeyNotFoundException: No parse factory registered for type IDataSource with key "xdb" (Source)
at ExperienceExtractor.Api.Parsing.JsonJobParser.Parse[TType](ParseState state) in c:\Projects\ExperienceExtractor\Git\experience-extractor\src\ExperienceExtractor\Api\Parsing\JsonJobParser.cs:line 67
at ExperienceExtractor.Api.Parsing.JobParser.ParseDataSource(ParseState state) in c:\Projects\ExperienceExtractor\Git\experience-extractor\src\ExperienceExtractor\Api\Parsing\JobParser.cs:line 69
at ExperienceExtractor.Api.Parsing.JobParser.CreateDataSource() in c:\Projects\ExperienceExtractor\Git\experience-extractor\src\ExperienceExtractor\Api\Parsing\JobParser.cs:line 134
at ExperienceExtractor.Api.Jobs.Job.Run() in c:\Projects\ExperienceExtractor\Git\experience-extractor\src\ExperienceExtractor\Api\Jobs\Job.cs:line 109

{
"Id": "8c15d967-7ff8-4e00-b8f6-e9f37148385f",
"Created": "2017-02-01T11:41:44.1180603+05:30",
"Ended": "2017-02-01T11:41:44.1220583+05:30",
"ItemsProcessed": 0,
"RowsCreated": 0,
"Progress": null,
"Status": "Failed",
"StatusText": "System.Collections.Generic.KeyNotFoundException: No parse factory registered for type IDataSource with key "xdb" (Source)\r\n at ExperienceExtractor.Api.Parsing.JsonJobParser.Parse[TType](ParseState state) in c:\Projects\ExperienceExtractor\Git\experience-extractor\src\ExperienceExtractor\Api\Parsing\JsonJobParser.cs:line 67\r\n at ExperienceExtractor.Api.Parsing.JobParser.ParseDataSource(ParseState state) in c:\Projects\ExperienceExtractor\Git\experience-extractor\src\ExperienceExtractor\Api\Parsing\JobParser.cs:line 69\r\n at ExperienceExtractor.Api.Parsing.JobParser.CreateDataSource() in c:\Projects\ExperienceExtractor\Git\experience-extractor\src\ExperienceExtractor\Api\Parsing\JobParser.cs:line 134\r\n at ExperienceExtractor.Api.Jobs.Job.Run() in c:\Projects\ExperienceExtractor\Git\experience-extractor\src\ExperienceExtractor\Api\Jobs\Job.cs:line 109",
"SizeLimitExceeded": false,
"Url": "/sitecore/experienceextractor/jobs/8c15d967-7ff8-4e00-b8f6-e9f37148385f",
"Specification": "{\r\n "labels": "en-US",\r\n "source": {\r\n "xdb": {\r\n "filters": [\r\n {\r\n "daterange": {\r\n "start": "2014-01-01Z"\r\n }\r\n },\r\n {\r\n "limit": 1000\r\n }\r\n ]\r\n }\r\n },\r\n "mapper": {\r\n "tables": [\r\n {\r\n "name": "MonthlyVisits",\r\n "fields": [\r\n {\r\n "date": {\r\n "resolution": "month"\r\n }\r\n },\r\n {\r\n "dimension": {\r\n "name": "Geo",\r\n "fields": [\r\n {\r\n "xa": "Visits/By Country"\r\n },\r\n {\r\n "xa": "Visits/By Region"\r\n },\r\n {\r\n "xa": "Visits/By City"\r\n }\r\n ]\r\n }\r\n },\r\n {\r\n "xa": "Visits/By Campaign"\r\n },\r\n "facts"\r\n ]\r\n }\r\n ]\r\n },\r\n "postprocessors": []\r\n}",
"LastException": "System.Collections.Generic.KeyNotFoundException: No parse factory registered for type IDataSource with key "xdb" (Source)\r\n at ExperienceExtractor.Api.Parsing.JsonJobParser.Parse[TType](ParseState state) in c:\Projects\ExperienceExtractor\Git\experience-extractor\src\ExperienceExtractor\Api\Parsing\JsonJobParser.cs:line 67\r\n at ExperienceExtractor.Api.Parsing.JobParser.ParseDataSource(ParseState state) in c:\Projects\ExperienceExtractor\Git\experience-extractor\src\ExperienceExtractor\Api\Parsing\JobParser.cs:line 69\r\n at ExperienceExtractor.Api.Parsing.JobParser.CreateDataSource() in c:\Projects\ExperienceExtractor\Git\experience-extractor\src\ExperienceExtractor\Api\Parsing\JobParser.cs:line 134\r\n at ExperienceExtractor.Api.Jobs.Job.Run() in c:\Projects\ExperienceExtractor\Git\experience-extractor\src\ExperienceExtractor\Api\Jobs\Job.cs:line 109"
}

[blipson89]

@SamridhiSachdeva did you ever find a way around this?

[massimde]

Reading log file i found this:
Exception: System.Reflection.ReflectionTypeLoadException
Message: Unable to load one or more of the requested types. Retrieve the LoaderExceptions property for more information.
Source: mscorlib
at System.Reflection.RuntimeModule.GetTypes(RuntimeModule module)
at System.Reflection.Assembly.GetTypes()
at ExperienceExtractor.Api.Parsing.ReflectionHelpers.GetAllTypes(Assembly assembly)
at ExperienceExtractor.Api.Parsing.ParseFactories.InitializeFromAttributes(Assembly assembly)
at ExperienceExtractor.Api.Pipelines.ExperienceExtractorApiInitializer.Process(PipelineArgs args)

22992 10:56:39 ERROR Error loading parse factories
Exception: System.IO.FileLoadException
Message: Could not load file or assembly 'MongoDB.Driver, Version=1.11.0.92, Culture=neutral, PublicKeyToken=f686731cfb9cc103' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)

...So the problem is related by the wrong version of MongoDB.Driver. But my Sitecore installation needs the 2.44 version!

I've downloaded the code from https:/Sitecore/experience-extractor and restored nuget packages for my Sitecore 8.2 Update 5 installation.
The only problem, now, is related to MongoDB.Bson package ver 2.4.4 that doesn't implement BsonBuffer class (http://api.mongodb.com/csharp/1.11/html/00b3830e-ab56-6d53-43cc-2db1a9936f33.htm) called in ExperienceExtractor.MongoDb.Helpers, so the ExperienceExtractor.MongoDb project doesn't build.
I'v changed the ExperienceExtractor.MongoDb.Helpers class as follows ( i don't know if it's the best approach to deserialize using the API ):

`

 public static IEnumerable<T> FastSpool<T>(this MongoCursor<RawBsonDocument> cursor, int threads = 2){
        var binaryReaderSettings = new BsonBinaryReaderSettings(); 
        binaryReaderSettings.MaxDocumentSize = int.MaxValue;
        var serializer = BsonSerializer.LookupSerializer(typeof(T));

        return cursor
            .AsParallel().AsOrdered()
                .WithExecutionMode(ParallelExecutionMode.ForceParallelism)
                .WithDegreeOfParallelism(Math.Max(1, threads))
            .Select(doc =>
            {                    
                using (doc)
                {
                    using (var stream = new ByteBufferStream(doc.Slice))
                    using (var reader = new BsonBinaryReader(stream, binaryReaderSettings))
                    {
                        var context = BsonDeserializationContext.CreateRoot(reader);
                        return (T) serializer.Deserialize(context);
                    }
                    // Old code
                    //return (T)serializer.Deserialize(new BsonBinaryReader(new BsonBuffer(doc.Slice, false), binaryReaderSettings),
                    //    typeof(T), null);
                }
            });   
    }`

After this change, it works fine!