From 24d2c13dcbed2997af442f9a712db27dd95738d7 Mon Sep 17 00:00:00 2001
From: "shani.elh" <shani.elha@gmail.com>
Date: Thu, 3 Sep 2015 09:21:26 +0300
Subject: [PATCH] Added Scala Logging Support

---
 build.sbt                                     |  1 +
 .../scala/atmos/dsl/ScalaLoggingSupport.scala | 30 +++++++++++
 .../atmos/dsl/ScalaLoggingSupportSpec.scala   | 50 +++++++++++++++++++
 3 files changed, 81 insertions(+)
 create mode 100644 src/main/scala/atmos/dsl/ScalaLoggingSupport.scala
 create mode 100644 src/test/scala/atmos/dsl/ScalaLoggingSupportSpec.scala

diff --git a/build.sbt b/build.sbt
index 76f0e5a..c35ba54 100644
--- a/build.sbt
+++ b/build.sbt
@@ -28,6 +28,7 @@ libraryDependencies ++= Seq(
   "io.zman" %% "rummage" % "1.3",
   "com.typesafe.akka" %% "akka-actor" % "2.3.2" % "provided",
   "org.slf4j" % "slf4j-api" % "1.7.5" % "provided",
+  "com.typesafe.scala-logging" %% "scala-logging" % "3.1.0" % "provided",
   "org.scalatest" %% "scalatest" % "2.2.4" % "test",
   "org.scalamock" %% "scalamock-scalatest-support" % "3.2" % "test"
 )
diff --git a/src/main/scala/atmos/dsl/ScalaLoggingSupport.scala b/src/main/scala/atmos/dsl/ScalaLoggingSupport.scala
new file mode 100644
index 0000000..adcdaba
--- /dev/null
+++ b/src/main/scala/atmos/dsl/ScalaLoggingSupport.scala
@@ -0,0 +1,30 @@
+package atmos.dsl
+
+import atmos.monitor
+import com.typesafe.scalalogging.Logger
+
+/**
+ * Separate namespace for optional Scala Logging support.
+ */
+object ScalaLoggingSupport {
+
+  /**
+   * Creates a new event monitor that submits events to a Scala logger.
+   *
+   * @param logger The Scala logger to supply with event messages.
+   */
+  implicit def scalaLoggerToEventMonitor(logger: Logger): monitor.LogEventsWithSlf4j =
+    monitor.LogEventsWithSlf4j(logger.underlying)
+
+  /**
+   * Creates a new event monitor extension interface for a Scala logger.
+   *
+   * @param logger The logger to create a new event monitor extension interface for.
+   */
+  implicit def scalaLoggerToEventMonitorExtensions(logger: Logger): LogEventsWithSlf4jExtensions =
+    new LogEventsWithSlf4jExtensions(logger)
+
+
+}
+
+
diff --git a/src/test/scala/atmos/dsl/ScalaLoggingSupportSpec.scala b/src/test/scala/atmos/dsl/ScalaLoggingSupportSpec.scala
new file mode 100644
index 0000000..4e66f5c
--- /dev/null
+++ b/src/test/scala/atmos/dsl/ScalaLoggingSupportSpec.scala
@@ -0,0 +1,50 @@
+/* ScalaLoggingSupportSpec.scala
+ *
+ * Copyright (c) 2013-2014 linkedin.com
+ * Copyright (c) 2013-2014 zman.io
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package atmos.dsl
+
+import atmos.dsl.ScalaLoggingSupport._
+import atmos.dsl.Slf4jSupport.{Slf4jEventLogLevels, _}
+import atmos.monitor.LogEventsWithSlf4j
+
+import com.typesafe.scalalogging.{Logger => ScalaLogger}
+
+import org.scalamock.scalatest.MockFactory
+import org.scalatest._
+import org.slf4j.Logger
+
+/**
+ * Test suite for [[atmos.dsl.Slf4jSupport]].
+ */
+class ScalaLoggingSupportSpec extends FlatSpec with Matchers with MockFactory {
+
+  "ScalaLoggingSupport" should "support viewing Scala-logging-compatible objects as event monitors" in {
+    val logger = mock[Logger]
+    val monitor = ScalaLogger(logger): LogEventsWithSlf4j
+    monitor shouldBe LogEventsWithSlf4j(logger)
+    (monitor: LogEventsWithSlf4jExtensions) shouldBe LogEventsWithSlf4jExtensions(monitor)
+    (logger: LogEventsWithSlf4jExtensions) shouldBe LogEventsWithSlf4jExtensions(LogEventsWithSlf4j(logger))
+  }
+
+  it should "return Slf4j log levels in response to generic level queries" in {
+    Slf4jEventLogLevels.errorLevel shouldBe LogEventsWithSlf4j.Slf4jLevel.Error
+    Slf4jEventLogLevels.warningLevel shouldBe LogEventsWithSlf4j.Slf4jLevel.Warn
+    Slf4jEventLogLevels.infoLevel shouldBe LogEventsWithSlf4j.Slf4jLevel.Info
+    Slf4jEventLogLevels.debugLevel shouldBe LogEventsWithSlf4j.Slf4jLevel.Debug
+  }
+
+}
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