implementation of IMessageHandler interface in order to control Aspectj weaving messages through kamon

1 files changed, 58 insertions, 0 deletions

diff --git a/kamon-core/src/main/scala/kamon/weaver/logging/KamonWeaverMessageHandler.scala b/kamon-core/src/main/scala/kamon/weaver/logging/KamonWeaverMessageHandler.scala
new file mode 100644
index 00000000..1aa0aae0
--- /dev/null
+++ b/kamon-core/src/main/scala/kamon/weaver/logging/KamonWeaverMessageHandler.scala
@@ -0,0 +1,58 @@
+/*
+ * =========================================================================================
+ * Copyright © 2013-2014 the kamon project <http://kamon.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 kamon.weaver.logging
+
+import org.aspectj.bridge.{ IMessage, IMessageHandler }
+import org.slf4j.LoggerFactory
+import com.typesafe.config.ConfigFactory
+
+class KamonWeaverMessageHandler extends IMessageHandler {
+  import IMessage._
+
+  private val log = LoggerFactory.getLogger("AspectJ Weaver")
+  private val conf = ConfigFactory.load().getConfig("kamon.weaver")
+
+  private val isVerbose = conf.getBoolean("verbose")
+  private val isDebug = conf.getBoolean("debug")
+  private val showWeaveInfo = conf.getBoolean("showWeaveInfo")
+  private val showWarn = conf.getBoolean("showWarn")
+
+  def handleMessage(message: IMessage) = message.getKind match {
+    case WEAVEINFO if showWeaveInfo ⇒ showMessage(message)
+    case DEBUG if isDebug           ⇒ showMessage(message)
+    case WARNING if showWarn        ⇒ showMessage(message)
+    case DEBUG if isDebug           ⇒ showMessage(message)
+    case INFO if isVerbose          ⇒ showMessage(message)
+    case ERROR                      ⇒ showErrorMessage(message)
+    case _                          ⇒ false
+  }
+
+  def isIgnoring(kind: IMessage.Kind): Boolean = false // We want to see everything.
+  def dontIgnore(kind: IMessage.Kind) = {}
+  def ignore(kind: IMessage.Kind) = {}
+
+  private def showMessage(msg: IMessage): Boolean = {
+    log.info(msg.getMessage)
+    true
+  }
+
+  private def showErrorMessage(msg: IMessage): Boolean = {
+    log.error(msg.getMessage)
+    true
+  }
+}
+