[SW-2505] Scala Scoring Package (#2428)

* [SW-2505] Scala Scoring Package

* Remove extra lines

* Rename package-scoring to scoring-package

Author: mn-mikke

README.rst

@@ -43,8 +43,9 @@ Each Sparkling Water release is published into Maven central with following coor
 - ``ai.h2o:sparkling-water-examples_{{scala_version}}:{{version}}`` - Includes example applications
 - ``ai.h2o:sparkling-water-repl_{{scala_version}}:{{version}}`` - Spark REPL integration into H2O Flow UI
 - ``ai.h2o:sparkling-water-ml_{{scala_version}}:{{version}}`` - Extends Spark ML package by H2O-based transformations
-- ``ai.h2o:sparkling-water-scoring_{{scala_version}}:{{version}}`` - Lightweight package used for Scoring with H2O MOJOs. This package does not have run-time dependency on H2O cluster.
-- ``ai.h2o:sparkling-water-package_{{scala_version}}:{{version}}`` - Uber Sparkling Water package containing all dependencies. This is designed to use as Spark package via ``--packages`` option
+- ``ai.h2o:sparkling-water-scoring_{{scala_version}}:{{version}}`` - A library containing scoring logic and definition of Sparkling Water MOJO models.
+- ``ai.h2o:sparkling-water-scoring-package_{{scala_version}}:{{version}}`` - Lightweight Sparkling Water package including all dependencies required just for scoring with H2O-3 and DAI MOJO models.
+- ``ai.h2o:sparkling-water-package_{{scala_version}}:{{version}}`` - Sparkling Water package containing all dependencies required for model training and scoring. This is designed to use as Spark package via ``--packages`` option.
 
    **Note:** The ``{{version}}`` references to a release version of Sparkling Water, the ``{{scala_version}}``
    references to Scala base version.

assembly-scoring/build.gradle

@@ -0,0 +1,28 @@
+apply plugin: 'java'
+apply plugin: 'com.github.johnrengelman.shadow'
+apply plugin: 'java-library'
+
+description = "Sparkling Water Scoring Assembly"
+
+dependencies {
+  implementation(project(":sparkling-water-scoring")) {
+    exclude group: "org.xerial.snappy", module: "snappy-java"
+  }
+}
+
+jar {
+  enabled = false // we do not need to generate jar file in this case
+}
+
+shadowJar {
+  mergeServiceFiles()
+  archiveBaseName = "${archiveBaseName.get()}_${scalaBaseVersion}"
+}
+
+artifacts {
+  api shadowJar
+}
+
+task cleanBuildDir(type: Delete) {
+  delete getBuildDir()
+}

build.gradle

@@ -41,6 +41,7 @@ ext {
     project(':sparkling-water-examples'),
     project(':sparkling-water-ml'),
     project(':sparkling-water-package'),
+    project(':sparkling-water-scoring-package'),
     project(":sparkling-water-doc"),
     project(':sparkling-water-utils'),
     project(':sparkling-water-scoring'),
@@ -64,6 +65,7 @@ ext {
     project(':sparkling-water-examples'),
     project(':sparkling-water-ml'),
     project(':sparkling-water-package'),
+    project(':sparkling-water-scoring-package'),
     project(':sparkling-water-benchmarks'),
     project(':sparkling-water-macros'),
     project(':sparkling-water-utils'),

dist/build.gradle

@@ -120,6 +120,7 @@ def distTaskDependencies = [
   ":sparkling-water-doc:site",
   ":sparkling-water-r:distR",
   ":sparkling-water-assembly:shadowJar",
+  ":sparkling-water-assembly-scoring:shadowJar",
   ":sparkling-water-assembly-extensions:shadowJar",
   ":sparkling-water-templates:build",
   ":sparkling-water-py:distPython",
@@ -130,6 +131,7 @@ def distTaskDependencies = [
   ":sparkling-water-ml:publish",
   ":sparkling-water-examples:publish",
   ":sparkling-water-package:publish",
+  ":sparkling-water-scoring-package:publish",
   ":sparkling-water-scoring:publish",
   ":sparkling-water-extensions:publish",
   ":sparkling-water-utils:publish",
@@ -166,6 +168,7 @@ task copyFilesForZipDistribution {
 
     copySingle("r/build/", "rsparkling_${version}.tar.gz", "$zipDir")
     copySingle("assembly-extensions/build/libs/", "sparkling-water-assembly-extensions_$scalaBaseVersion-${version}-all.jar", "$zipDir/jars")
+    copySingle("assembly-scoring/build/libs/", "sparkling-water-assembly-scoring_$scalaBaseVersion-${version}-all.jar", "$zipDir/jars")
     copySingle("assembly/build/libs/", "sparkling-water-assembly_$scalaBaseVersion-${version}-all.jar", "$zipDir/jars")
 
     createSupportedHadoopFile("$zipDir")

scoring-package/build.gradle

@@ -0,0 +1,17 @@
+description = 'Sparkling Water Spark Package'
+
+apply plugin: 'com.github.johnrengelman.shadow'
+
+dependencies {
+  api(project(path: ':sparkling-water-assembly-scoring', configuration: 'shadow'))
+}
+
+jar {
+  enabled = false
+}
+
+shadowJar {
+  archiveClassifier = null
+}
+
+defineShadowPublication().call()

settings.gradle

@@ -5,12 +5,14 @@ include 'core'
 include 'examples'
 include 'ml'
 include 'assembly'
+include 'assembly-scoring'
 include 'assembly-extensions'
 include 'py'
 include 'r'
 include 'r-cran'
 include 'repl'
 include 'package'
+include 'scoring-package'
 include 'doc'
 include 'extensions'
 include 'templates'