* conditional load of some modules based on Java version

AbsaOSS · Nov 21, 2024 · 7e86f6c · 7e86f6c
1 parent 45e137f
commit 7e86f6c
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Showing 2 changed files with 59 additions and 31 deletions.
diff --git a/build.sbt b/build.sbt
@@ -20,17 +20,25 @@ import Dependencies.*
 import Dependencies.Versions.spark3
 import VersionAxes.*
 
+ThisBuild / scalaVersion := Setup.scala213.asString
+
 ThisBuild / versionScheme := Some("early-semver")
 
 Global / onChangedBuildSource := ReloadOnSourceChanges
 
+val limitedProject: Boolean = Setup.currentJava < Setup.recommendedJava
+
 initialize := {
   val _ = initialize.value // Ensure previous initializations are run
 
-  val requiredJavaVersion = VersionNumber("11")
-  val currentJavaVersion = VersionNumber(sys.props("java.specification.version"))
-  println(s"Running on Java version $currentJavaVersion, required is at least version $requiredJavaVersion")
-  //this routine can be used to assert the required Java version
+  assert(Setup.currentJava >= Setup.requiredJava,
+    s"Running on Java version ${Setup.currentJava}, required is at least version ${Setup.requiredJava}, recommended is ${Setup.recommendedJava}")
+
+  if (limitedProject) {
+    val log = Keys.sLog.value
+    log.warn(s"Some nodules will not be loaded, because they require at least Java ${Setup.recommendedJava} while Java ${Setup.currentJava} has been found")
+    log.warn("""Affected modules are: "atum-server", "atum-database"""")
+  }
 }
 
 enablePlugins(FlywayPlugin)
@@ -45,23 +53,31 @@ libraryDependencies ++= flywayDependencies
 /**
  * Module `server` is the service application that collects and stores measured data And upo request retrives them
  */
-lazy val server = (projectMatrix in file("server"))
-  .settings(
-    Setup.commonSettings ++ Seq(
-      name := "atum-server",
-      javacOptions ++= Setup.serverAndDbJavacOptions,
-      Compile / packageBin / publishArtifact := false,
-      packageBin := (Compile / assembly).value,
-      artifactPath / (Compile / packageBin) := baseDirectory.value / s"target/${name.value}-${version.value}.jar",
-      testFrameworks += new TestFramework("zio.test.sbt.ZTestFramework"),
-      Setup.serverMergeStrategy,
-      publish / skip := true
-    ): _*
-  )
-  .enablePlugins(AssemblyPlugin)
-  .enablePlugins(AutomateHeaderPlugin)
-  .addSingleScalaBuild(Setup.serverAndDbScalaVersion, Dependencies.serverDependencies)
-  .dependsOn(model)
+lazy val server = {
+  val server = (projectMatrix in file("server"))
+    .settings(
+      Setup.commonSettings ++ Seq(
+        name := "atum-server",
+        javacOptions ++= Setup.serverAndDbJavacOptions,
+        Compile / packageBin / publishArtifact := false,
+        packageBin := (Compile / assembly).value,
+        artifactPath / (Compile / packageBin) := baseDirectory.value / s"target/${name.value}-${version.value}.jar",
+        testFrameworks += new TestFramework("zio.test.sbt.ZTestFramework"),
+        Setup.serverMergeStrategy,
+        publish / skip := true
+      ): _*
+    )
+    .enablePlugins(AssemblyPlugin)
+    .enablePlugins(AutomateHeaderPlugin)
+    .addSingleScalaBuild(Setup.serverAndDbScalaVersion, Dependencies.serverDependencies)
+    .dependsOn(model)
+
+  if (limitedProject) {
+    null // if value other then null is returned, the condition doesn't seem to work.
+  } else {
+    server
+  }
+}
 
 /**
  * Module `agent` is the library to be plugged into the Spark application to measure the data and send it to the server
@@ -93,16 +109,23 @@ lazy val model = (projectMatrix in file("model"))
 /**
  * Module `database` is the source of database structures of the service
  */
-lazy val database = (projectMatrix in file("database"))
-  .disablePlugins(sbtassembly.AssemblyPlugin)
-  .settings(
-    Setup.commonSettings ++ Seq(
-      name := "atum-database",
-      javacOptions ++= Setup.serverAndDbJavacOptions,
-      publish / skip := true
-    ): _*
-  )
-  .addSingleScalaBuild(Setup.serverAndDbScalaVersion, Dependencies.databaseDependencies)
+lazy val database = {
+  val database = (projectMatrix in file("database"))
+    .disablePlugins(sbtassembly.AssemblyPlugin)
+    .settings(
+      Setup.commonSettings ++ Seq(
+        name := "atum-database",
+        javacOptions ++= Setup.serverAndDbJavacOptions,
+        publish / skip := true
+      ): _*
+    )
+    .addSingleScalaBuild(Setup.serverAndDbScalaVersion, Dependencies.databaseDependencies)
+  if (limitedProject) {
+    null // if value other then null is returned, the condition doesn't seem to work.
+  } else {
+    database
+  }
+}
 
 /**
  * Module `reader` is the library to be plugged into application which wants to easily read the measured data stored on

diff --git a/project/Setup.scala b/project/Setup.scala
@@ -24,6 +24,11 @@ import za.co.absa.commons.version.Version
 
 
 object Setup {
+  //supprtted Java versions
+  val requiredJava: Double = "1.8".toDouble
+  val recommendedJava: Double = "11".toDouble
+  val currentJava: Double =  sys.props("java.specification.version").toDouble
+
   //supported Scala versions
   val scala211: Version = Version.asSemVer("2.11.12")
   val scala212: Version = Version.asSemVer("2.12.18")