Merge pull request #1 from jtgrabowski/master

add projects for maven, gradle and sbt for java and scala

Author: RussellSpitzer

.gitignore

@@ -1,7 +1,6 @@
-SparkBuildExamples*
-gradle*
-*/.gradle
 */build
 */target
-*/gradle
 .gradle
+.idea
+metastore_db
+derby.log

GradleVsDSE/build.gradle

@@ -0,0 +1,57 @@
+# Example projects for using DSE Analytics
+
+These are template projects that illustrate how to build Spark Application written in Java or Scala with 
+Maven, SBT or Gradle. Navigate to project that implements simple write-to-/read-from-Cassandra 
+application with language and build tool of your choice.
+
+## Dependencies
+
+Compiling Spark Applications depends on `Apache Spark` and optionally on `Spark Cassandra Connector` 
+jars. Projects `dse` and `oss` show two different ways of supplying these dependencies. 
+Both projects are built and executed with similar commands.
+
+### DSE 
+
+If you are planning to execute your Spark Application on a DSE cluster, you can use `dse` project 
+template which will automatically download (and use during compilation) all jars available in DSE cluster. 
+Please mind DSE version specified in build file, it should should match the one in your cluster.
+
+### OSS
+
+If you are planning to execute your Spark Application against Open Source Apache Spark and Open Source 
+Apache Cassandra, use `oss` project template where all dependencies have to be specified manually in 
+build files. Please mind dependencies versions, these should match the ones in your execution environment.
+
+For additional info about version compatibility please refer to 
+[Version Compatibility Table](https://github.com/datastax/spark-cassandra-connector#version-compatibility)
+
+### Additional dependencies
+
+Prepared projects use extra plugins so additional dependencies can be included with your 
+application's jar. All you need to do is add dependencies in build configuration file.
+
+## Building & running
+
+### Sbt
+
+```
+sbt clean assembly
+dse spark-submit --class com.datastax.spark.example.scala.WriteRead target/scala-2.10/writeRead-assembly-0.1.jar
+```
+
+### Gradle
+
+```
+gradle clean jar
+dse spark-submit --class com.datastax.spark.example.scala.WriteRead build/libs/writeRead-0.1.jar
+```
+
+### Maven
+
+```
+mvn clean package
+dse spark-submit --class com.datastax.spark.example.scala.WriteRead target/writeRead-0.1-dep.jar
+```
+
+
+