Starting to try out a simple example

README.adoc

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+= Redspark
+
+Redspark is a library to make it easy to build and deploy
+link:https://spark.apache.org[Spark]
+applications in Ruby.

build.gradle

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+plugins {
+    id 'java'
+    id 'com.github.jruby-gradle.base' version '1.7.0'
+    id 'com.github.jruby-gradle.jar' version '1.7.0'
+}
+
+group 'de.brokenco'
+version '1.0-SNAPSHOT'
+
+sourceCompatibility = 1.8
+
+repositories {
+    mavenCentral()
+    jcenter()
+}
+
+dependencies {
+    jrubyJar 'org.apache.spark:spark-sql_2.12:[2.4.3,3.0)'
+    testCompile group: 'junit', name: 'junit', version: '4.12'
+}
+
+jrubyJar {
+    initScript "${projectDir}/simple.rb"
+}

settings.gradle

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+rootProject.name = 'redspark'
+

simple.rb

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+#!/usr/bin/env ruby
+
+java_import 'org.apache.spark.sql.SparkSession'
+
+class SimpleApp
+    def main(args)
+        logfile = 'build.gradle'
+        spark = SparkSession.builder.appName('Simple Application').getoOrCreate()
+        data = spark.read.textFile(logfile).cache()
+
+        #val numAs = logData.filter(line => line.contains("a")).count()
+        #val numBs = logData.filter(line => line.contains("b")).count()
+
+        puts "Hello World"
+        spark.stop()
+    end
+end