How to connect a mobile app (Android/iOS) with a Spark backend?

2015-02-18 Thread Ralph Bergmann | the4thFloor.eu 
Hi,


I have dependency problems to use spark-core inside of a HttpServlet
(see other mail from me).

Maybe I'm wrong?!

What I want to do: I develop a mobile app (Android and iOS) and want to
connect them with Spark on backend side.

To do this I want to use Tomcat. The app uses https to ask Tomcat for
the needed data and Tomcat asks Spark.

Is this the right way? Or is there a better way to connect my mobile
apps with the Spark backend?

I hope that I'm not the first one who want to do this.



Ralph



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Re: How to connect a mobile app (Android/iOS) with a Spark backend?

2015-02-18 Thread Ralph Bergmann | the4thFloor.eu 
Hi,


Am 18.02.15 um 15:58 schrieb Sean Owen:
 That said, it depends a lot on what you are trying to do. What are you
 trying to do? You just say you're connecting to spark.

There are 2 tasks I want to solve with Spark.

1) The user opens the mobile app. The app sends a pink to the backend.
When this happens the backend has to collect some data from other server
via http and has to do some stuff with this data.

2) The mobile app can download this data from 1. In this case the
backend has to find/create the right data (depending on user location,
rating, etc.)


Ralph



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Berlin Apache Spark Meetup

2015-02-17 Thread Ralph Bergmann | the4thFloor.eu 
Hi,


there is a small Spark Meetup group in Berlin, Germany :-)
http://www.meetup.com/Berlin-Apache-Spark-Meetup/

Plaes add this group to the Meetups list at
https://spark.apache.org/community.html


Ralph

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To unsubscribe, e-mail: user-unsubscr...@spark.apache.org
For additional commands, e-mail: user-h...@spark.apache.org

spark-core in a servlet

2015-02-17 Thread Ralph Bergmann | the4thFloor.eu 
Hi,


I want to use spark-core inside of a HttpServlet. I use Maven for the
build task but I have a dependency problem :-(

I get this error message:

ClassCastException:
com.sun.jersey.server.impl.container.servlet.JerseyServletContainerInitializer
cannot be cast to javax.servlet.ServletContainerInitializer

When I add this exclusions it builds but than there are other classes
not found at runtime:

  dependency
 groupIdorg.apache.spark/groupId
 artifactIdspark-core_2.11/artifactId
 version1.2.1/version
 exclusions
exclusion
   groupIdorg.apache.hadoop/groupId
   artifactIdhadoop-client/artifactId
/exclusion
exclusion
   groupIdorg.eclipse.jetty/groupId
   artifactId*/artifactId
/exclusion
 /exclusions
  /dependency


What can I do?


Thanks a lot!,

Ralph

-- 

Ralph Bergmann

iOS and Android app developer


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pgp key id   0x421F9B78
pgp fingerprint  CEE3 7AE9 07BE 98DF CD5A E69C F131 4A8E 421F 9B78
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   properties
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  dependency
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 groupIdorg.apache.spark/groupId
 artifactIdspark-core_2.11/artifactId
 version1.2.1/version
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 !-- Set JDK Compiler Level --
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version2.2/version
configuration
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