Apache spark queries through C# [closed] - c#

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I was wondering if there is a way I can use C# to write queries to run on Apache spark. I know spark SQL queries can be written in java/scala/python. Is there any interface for c#?

What exactly you are trying to achieve? If you want to write programs which uses spark apis, probably you are out of luck as only scala,java and python apis are exposed. But if you want to query spark storage data then you can see the thriftserver comes with spark and pass your queries through it. Essentially it should support any jdbc connection (see beeline example in documentation)

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Is there any advanced compiler-compiler lexer/parser in C#? [closed]

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I want to know Is there any compiler-compiler library that is written in C# or Not ?
I know Antlr & JavaCC but these library wrote in Java
Is there any library like antlr but in C# (or ported in C#) and open source or not ?
Can anybody introduce them ?
There is Irony. I've never used it myself though.
The C# compiler is itself written in C#, and with Roslyn, this has been made open source.
https://github.com/dotnet/roslyn
There is also a C# port of JavaCC, however, it's no longer maintained. The author switched to Irony instead. If you're just looking for code for examples, it would do that.
https://github.com/deveel/csharpcc

Are there any StackExchange.Redis example projects [closed]

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We are thinking of implementing Redis to optimise our webapplications retrieval of custom text descriptions and labels for pages.
We want to use StackExchange.Redis. Are there any example projects or Walkthroughs which would help to understand the project easier?
I use the test project as examples. https://github.com/StackExchange/StackExchange.Redis/tree/master/StackExchange.Redis.Tests
it is pretty good.
I found useful example of using redis StackExchange client here:
Object Persistence in C# - Part 5 - Redis Provider
the source code is on github

BigTable with C# Library [closed]

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Is there any sort of LinqToBigTable library out there or anything that makes it link up with C#? I am looking to integrate with App Engine BigTable.
There is no direct way to interact with the AppEngine datastore from outside of an AppEngine application. Can't be done.
Your best bet for making something like this work is to expose your AppEngine datastore through a RESTful interface that talks JSON. Then, you can use Linq-to-JSON to work with the data in the fashion you desire.
The only supported languages for the Google App Engine are Python and Java (plus Go, experimentally). See here. As neither is a .net language you can't use Linq with the Google App Engine.
There is a C# client library for Cloud Bigtable, but there is not one for App Engine.

free .NET translation libraries [closed]

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I am looking for a .net C# library that can do translations. I tried googles one but they charge money now for it.
I am looking for something that can preferably auto detect languages, translate blocks of text or download the entire page and convert it.
This all has to of course be done through code.
Thanks
Have you tried using bing?
http://www.microsofttranslator.com/
There is a translator .net library on codeplex that uses bing: http://translateit.codeplex.com/

What is a good library for generating static Treemap graphs, usable on a server? [closed]

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I'm busy with an application that needs to display Treemaps to a user but I can't find a good charting library that has support for this kind of graph.
Here are some examples of what I mean
I'm using C# as a server side technology, but I'm willing to invoke something on a command-line too if that is required.
Any suggestions?
Edit: I don't mind getting a java library recommendation, since I don't mind combining technologies
Well, since you question is tagged with "Java" I'm gonna propose JFreeChart (even though your actual question seems to indicate you need more of a C#/.net kind of library)

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