Initial commit with standard lib, might be used a example of cake

1 files changed, 43 insertions, 0 deletions

diff --git a/src/main/scala/com/drivergrp/core/config.scala b/src/main/scala/com/drivergrp/core/config.scala
new file mode 100644
index 0000000..5a89752
--- /dev/null
+++ b/src/main/scala/com/drivergrp/core/config.scala
@@ -0,0 +1,43 @@
+package com.drivergrp.core
+
+import java.io.File
+import com.typesafe.config.{Config, ConfigFactory}
+
+
+object config {
+
+  trait ConfigModule {
+    def config: Config
+  }
+
+  /**
+    * Configuration implementation providing config which is specified as the parameter
+    * which might be used for testing purposes
+    *
+    * @param config fixed config to provide
+    */
+  class DefaultConfigModule(val config: Config) extends ConfigModule
+
+  /**
+    * Configuration implementation reading default typesafe config
+    */
+  trait TypesafeConfigModule extends ConfigModule {
+
+    private val internalConfig: Config = {
+      val configDefaults =
+        ConfigFactory.load(this.getClass.getClassLoader, "application.conf")
+
+      scala.sys.props.get("application.config") match {
+
+        case Some(filename) =>
+          ConfigFactory.parseFile(new File(filename)).withFallback(configDefaults)
+
+        case None => configDefaults
+      }
+    }
+
+    protected val rootConfig = internalConfig
+
+    val config = rootConfig
+  }
+}