casbah | Casbah

i am writing the json data from Kafka structured streaming to a filepath and when i do it from shell i am able to do it. When i compile it to a jar and do a spark2-submit only the _spark_metadata creates and no data is found

i tried doing it from shell and i was able to see the json files in the filepath. I compile the program using "sbt clean package" and then try to run using spark-submit it wont create any data.

I new to both Scala and SBT, and in an attempt to learn something new, am trying to run through the book "Building a recommendation engine with Scala". The example libraries referenced in the book have now been replaced by later versions or in some cases seemingly superseded by different techniques (casbah to Mongo Scala driver). This has led to me producing some potentially incorrect SBT build files. With my initial build file, I had;

I am having a little bit of trouble properly appending to a nested array using Mongo in Scala. I have done the same operation numerous times in Node.js but for some reason I can not translate it to Scala.

Here is the main "schema":

When upgrading the mongodb connection from a scala application from Mongodb+Casbah to mongo-scala-driver 2.3.0 (scala 2.11.8) we are facing some problems when creating the Documents to insert in the DB. Basically I'm facing problems with nested fields of the type Map[String,Any] or Map[Int,Int].

If my field is of type Map["String", Int] there's no problem and the code would compile no problem:

I'm using scapegoat for Scala static code analysis and I'm getting a warning on a piece of code. Here is the full warning

Hi I am using play framework 2.4.3 and scala version 2.11 I am using rest assured scala support for testing routes but i am getting

trying to upsert with the new Scala Async Driver using this code, but the DB never gets created even though this is called many times:

Inside of a spark-submit job (.JAR written in Scala), I need to access an existing MongoDB, create a new collection in the db, add an index, write data from an RDD distributed over 1,000's of executors to the collection.

I can't find one library that can do all of this. Right now, I'm using mongo-spark-connector to write from RDD, and then I use casbah to create the index.

mongo spark connector (where is scaladoc for this?)- https://docs.mongodb.com/spark-connector/current/scala-api/

casbah - http://mongodb.github.io/casbah/3.1/scaladoc/#package

The process looks like this...

• create the RDD
• write from RDD to new collection (using mongo spark connector)
• create index on collection after writing (using casbah)

Would this approach speed things up? Any ideas how to accomplish it?

• create empty collection
• create index
• build RDD and write to this collection
• use one library to do it

Here's how I go about it right now, but I suspect there's a better way.

imports

I'm trying to create a ListView with 2 TextView. I'm not very good in Java so I usually follow many tutorials and combine them to create what I need.

But I've tried to combine 2 guides together without much success...

Here is the tutorial I'm trying to follow to add the second TextView : https://www.youtube.com/watch?annotation_id=annotation_3104328239&feature=iv&src_vid=8K-6gdTlGEA&v=E6vE8fqQPTE

But this doesn't really help me since I have difficulty understanding how I can implement what he is doing.

So far what I have understood is that I need to add my item like this :