1 files changed, 81 insertions, 0 deletions
diff --git a/kamon-annotation/src/main/scala/kamon/annotation/instrumentation/AnnotationInstrumentation.scala b/kamon-annotation/src/main/scala/kamon/annotation/instrumentation/AnnotationInstrumentation.scala
new file mode 100644
index 00000000..381aeb72
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+++ b/kamon-annotation/src/main/scala/kamon/annotation/instrumentation/AnnotationInstrumentation.scala
@@ -0,0 +1,81 @@
+/*
+ * =========================================================================================
+ * 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.annotation.instrumentation
+
+import kamon.Kamon
+import kamon.annotation._
+import kamon.metric.instrument
+import kamon.metric.instrument.{ MinMaxCounter, Counter }
+import org.aspectj.lang.annotation._
+import org.aspectj.lang.{ JoinPoint, ProceedingJoinPoint }
+import java.util.concurrent.atomic.AtomicReferenceArray
+
+@Aspect
+class AnnotationInstrumentation extends BaseAnnotationInstrumentation {
+
+  @After("execution((@kamon.annotation.EnableKamon AnnotationInstruments+).new(..)) && this(obj)")
+  def creation(jps: JoinPoint.StaticPart, obj: AnnotationInstruments): Unit = {
+    val size = Kamon(Annotation).arraySize
+    obj.traces = new AtomicReferenceArray[TraceContextInfo](size)
+    obj.segments = new AtomicReferenceArray[SegmentInfo](size)
+    obj.counters = new AtomicReferenceArray[Counter](size)
+    obj.minMaxCounters = new AtomicReferenceArray[MinMaxCounter](size)
+    obj.histograms = new AtomicReferenceArray[instrument.Histogram](size)
+  }
+
+  @Around("execution(@kamon.annotation.Trace !static * (@kamon.annotation.EnableKamon AnnotationInstruments+).*(..)) && this(obj)")
+  def trace(pjp: ProceedingJoinPoint, obj: AnnotationInstruments): AnyRef = {
+    var traceInfo = obj.traces.get(pjp.getStaticPart.getId)
+    if (traceInfo == null) traceInfo = registerTrace(pjp.getStaticPart, obj.traces, StringEvaluator(obj), TagsEvaluator(obj))
+    processTrace(traceInfo, pjp)
+  }
+
+  @Around("execution(@kamon.annotation.Segment !static * (@kamon.annotation.EnableKamon AnnotationInstruments+).*(..)) && this(obj)")
+  def segment(pjp: ProceedingJoinPoint, obj: AnnotationInstruments): AnyRef = {
+    var segmentInfo = obj.segments.get(pjp.getStaticPart.getId)
+    if (segmentInfo == null) segmentInfo = registerSegment(pjp.getStaticPart, obj.segments, StringEvaluator(obj), TagsEvaluator(obj))
+    processSegment(segmentInfo, pjp)
+  }
+
+  @Around("execution(@kamon.annotation.Time !static * (@kamon.annotation.EnableKamon AnnotationInstruments+).*(..)) && this(obj)")
+  def time(pjp: ProceedingJoinPoint, obj: AnnotationInstruments): AnyRef = {
+    var histogram = obj.histograms.get(pjp.getStaticPart.getId)
+    if (histogram == null) histogram = registerTime(pjp.getStaticPart, obj.histograms, StringEvaluator(obj), TagsEvaluator(obj))
+    processTime(histogram, pjp)
+  }
+
+  @Around("execution(@kamon.annotation.Count !static * (@kamon.annotation.EnableKamon AnnotationInstruments+).*(..)) && this(obj)")
+  def count(pjp: ProceedingJoinPoint, obj: AnnotationInstruments): AnyRef = {
+    var counter = obj.counters.get(pjp.getStaticPart.getId)
+    if (counter == null) counter = registerCounter(pjp.getStaticPart, obj.counters, StringEvaluator(obj), TagsEvaluator(obj))
+    processCount(counter, pjp)
+  }
+
+  @Around("execution(@kamon.annotation.MinMaxCount !static * (@kamon.annotation.EnableKamon AnnotationInstruments+).*(..)) && this(obj)")
+  def minMax(pjp: ProceedingJoinPoint, obj: AnnotationInstruments): AnyRef = {
+    var minMax = obj.minMaxCounters.get(pjp.getStaticPart.getId)
+    if (minMax == null) minMax = registerMinMaxCounter(pjp.getStaticPart, obj.minMaxCounters, StringEvaluator(obj), TagsEvaluator(obj))
+    processMinMax(minMax, pjp)
+  }
+
+  @AfterReturning(pointcut = "execution(@kamon.annotation.Histogram !static (int || long || double || float) (@kamon.annotation.EnableKamon AnnotationInstruments+).*(..)) && this(obj)", returning = "result")
+  def histogram(jps: JoinPoint.StaticPart, obj: AnnotationInstruments, result: AnyRef): Unit = {
+    var histogram = obj.histograms.get(jps.getId)
+    if (histogram == null) histogram = registerHistogram(jps, obj.histograms, StringEvaluator(obj), TagsEvaluator(obj))
+    processHistogram(histogram, result, jps)
+  }
+}