! core: generalize ThreadPoolExecutors metrics

1 files changed, 41 insertions, 0 deletions

diff --git a/kamon-core/src/main/scala/kamon/util/http/HttpServerMetrics.scala b/kamon-core/src/main/scala/kamon/util/http/HttpServerMetrics.scala
new file mode 100644
index 00000000..81e8fb8b
--- /dev/null
+++ b/kamon-core/src/main/scala/kamon/util/http/HttpServerMetrics.scala
@@ -0,0 +1,41 @@
+/*
+ * =========================================================================================
+ * Copyright © 2013-2015 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.util.http
+
+import kamon.metric.{ EntityRecorderFactory, GenericEntityRecorder }
+import kamon.metric.instrument.InstrumentFactory
+
+/**
+ *  Counts HTTP response status codes into per status code and per trace name + status counters. If recording a HTTP
+ *  response with status 500 for the trace "GetUser", the counter with name "500" as well as the counter with name
+ *  "GetUser_500" will be incremented.
+ */
+class HttpServerMetrics(instrumentFactory: InstrumentFactory) extends GenericEntityRecorder(instrumentFactory) {
+
+  def recordResponse(statusCode: String): Unit =
+    counter(statusCode).increment()
+
+  def recordResponse(traceName: String, statusCode: String): Unit = {
+    recordResponse(statusCode)
+    counter(traceName + "_" + statusCode).increment()
+  }
+}
+
+object HttpServerMetrics extends EntityRecorderFactory[HttpServerMetrics] {
+  def category: String = "http-server"
+  def createRecorder(instrumentFactory: InstrumentFactory): HttpServerMetrics = new HttpServerMetrics(instrumentFactory)
+}