4 files changed, 52 insertions, 0 deletions
diff --git a/src/main/scala/cake/application.scala b/src/main/scala/cake/application.scala
new file mode 100644
index 0000000..8311dc8
--- /dev/null
+++ b/src/main/scala/cake/application.scala
@@ -0,0 +1,13 @@
+package cake.application
+
+import cake.logger.FileLogger
+import cake.database.DBI
+
+class Application (val logger: FileLogger, val dbh: DBI) {
+  def run (): Unit = {
+    logger.log("starting")
+    logger.log("got a dbh: " +
+      List(dbh.dsn, dbh.username, dbh.password).mkString(", "))
+    logger.log("ending")
+  }
+}
diff --git a/src/main/scala/cake/database.scala b/src/main/scala/cake/database.scala
new file mode 100644
index 0000000..d7f37e9
--- /dev/null
+++ b/src/main/scala/cake/database.scala
@@ -0,0 +1,13 @@
+package cake.database
+
+// class DBI private (
+class DBI (
+  val dsn:      String,
+  val username: String,
+  val password: String) {
+}
+
+// object DBI {
+//   def connect (dsn: String, username: String, password: String) =
+//     new DBI(dsn, username, password)
+// }
diff --git a/src/main/scala/cake/logger.scala b/src/main/scala/cake/logger.scala
new file mode 100644
index 0000000..6c4a64d
--- /dev/null
+++ b/src/main/scala/cake/logger.scala
@@ -0,0 +1,10 @@
+package cake.logger
+
+trait Logger {
+  def log (msg: String): Unit
+}
+
+class FileLogger (val logFileName: String) extends Logger {
+  def log (msg: String): Unit =
+    println("writing " + msg + " to " + logFileName)
+}
diff --git a/src/main/scala/cake/services.scala b/src/main/scala/cake/services.scala
new file mode 100644
index 0000000..ed28203
--- /dev/null
+++ b/src/main/scala/cake/services.scala
@@ -0,0 +1,16 @@
+package cake.services
+
+trait HasApplication {
+  type ApplicationType
+  val application: ApplicationType
+}
+
+trait HasDatabase {
+  type DatabaseType
+  val database: DatabaseType
+}
+
+trait HasLogger {
+  type LoggerType
+  val logger: LoggerType
+}