1 files changed, 0 insertions, 174 deletions
diff --git a/kamon-core/src/main/scala/kamon/trace/SpanContextCodec.scala b/kamon-core/src/main/scala/kamon/trace/SpanContextCodec.scala
deleted file mode 100644
index 43b5e8e4..00000000
--- a/kamon-core/src/main/scala/kamon/trace/SpanContextCodec.scala
+++ /dev/null
@@ -1,174 +0,0 @@
-/* =========================================================================================
- * Copyright © 2013-2017 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.trace
-
-import java.lang.StringBuilder
-import java.net.{URLDecoder, URLEncoder}
-import java.nio.ByteBuffer
-import kamon.trace.SpanContext.{Baggage, SamplingDecision, Source}
-import scala.collection.mutable
-
-trait SpanContextCodec[T] {
-  def inject(spanContext: SpanContext, carrier: T): T
-  def inject(spanContext: SpanContext): T
-  def extract(carrier: T): Option[SpanContext]
-}
-
-object SpanContextCodec {
-
-  sealed trait Format[C]
-  object Format {
-    case object TextMap extends Format[TextMap]
-    case object HttpHeaders extends Format[TextMap]
-    case object Binary extends Format[ByteBuffer]
-  }
-
-  class ExtendedB3(identityProvider: IdentityProvider) extends SpanContextCodec[TextMap] {
-    import ExtendedB3.Headers
-
-    override def inject(spanContext: SpanContext, carrier: TextMap): TextMap = {
-      if(spanContext != SpanContext.EmptySpanContext) {
-        carrier.put(Headers.TraceIdentifier, urlEncode(spanContext.traceID.string))
-        carrier.put(Headers.SpanIdentifier, urlEncode(spanContext.spanID.string))
-        carrier.put(Headers.ParentSpanIdentifier, urlEncode(spanContext.parentID.string))
-        carrier.put(Headers.Baggage, encodeBaggage(spanContext.baggage))
-
-        encodeSamplingDecision(spanContext.samplingDecision).foreach { samplingDecision =>
-          carrier.put(Headers.Sampled, samplingDecision)
-        }
-
-        spanContext.baggage.get(Headers.Flags).foreach { flags =>
-          carrier.put(Headers.Flags, flags)
-        }
-      }
-
-      carrier
-    }
-
-    override def inject(spanContext: SpanContext): TextMap =
-      inject(spanContext, TextMap.Default())
-
-    override def extract(carrier: TextMap): Option[SpanContext] = {
-      val traceID = carrier.get(Headers.TraceIdentifier)
-        .map(id => identityProvider.traceIdentifierGenerator().from(urlDecode(id)))
-        .getOrElse(IdentityProvider.NoIdentifier)
-
-      val spanID = carrier.get(Headers.SpanIdentifier)
-        .map(id => identityProvider.spanIdentifierGenerator().from(urlDecode(id)))
-        .getOrElse(IdentityProvider.NoIdentifier)
-
-      if(traceID != IdentityProvider.NoIdentifier && spanID != IdentityProvider.NoIdentifier) {
-        val parentID = carrier.get(Headers.ParentSpanIdentifier)
-          .map(id => identityProvider.spanIdentifierGenerator().from(urlDecode(id)))
-          .getOrElse(IdentityProvider.NoIdentifier)
-
-        val baggage = decodeBaggage(carrier.get(Headers.Baggage))
-        val flags = carrier.get(Headers.Flags)
-
-        flags.foreach { flags =>
-          baggage.add(Headers.Flags, flags)
-        }
-
-        val samplingDecision = flags.orElse(carrier.get(Headers.Sampled)) match {
-          case Some(sampled) if sampled == "1" => SamplingDecision.Sample
-          case Some(sampled) if sampled == "0" => SamplingDecision.DoNotSample
-          case _ => SamplingDecision.Unknown
-        }
-
-        Some(SpanContext(traceID, spanID, parentID, samplingDecision, baggage, Source.Remote))
-
-      } else None
-    }
-
-    private def encodeBaggage(baggage: Baggage): String = {
-      if(baggage.getAll().nonEmpty) {
-        val encodedBaggage = new StringBuilder()
-        baggage.getAll().foreach {
-          case (key, value) =>
-            if(key != Headers.Flags) {
-              if (encodedBaggage.length() > 0)
-                encodedBaggage.append(';')
-
-              encodedBaggage
-                .append(urlEncode(key))
-                .append('=')
-                .append(urlEncode(value))
-            }
-        }
-
-        encodedBaggage.toString()
-      } else ""
-    }
-
-    private def decodeBaggage(encodedBaggage: Option[String]): Baggage = {
-      val baggage = Baggage()
-      encodedBaggage.foreach { baggageString =>
-        baggageString.split(";").foreach { group =>
-          val pair = group.split("=")
-          if(pair.length >= 2 && pair(0).nonEmpty) {
-            baggage.add(urlDecode(pair(0)), urlDecode(pair(1)))
-          }
-        }
-      }
-
-      baggage
-    }
-
-    private def encodeSamplingDecision(samplingDecision: SamplingDecision): Option[String] = samplingDecision match {
-      case SamplingDecision.Sample      => Some("1")
-      case SamplingDecision.DoNotSample => Some("0")
-      case SamplingDecision.Unknown     => None
-    }
-
-    private def urlEncode(s: String): String = URLEncoder.encode(s, "UTF-8")
-    private def urlDecode(s: String): String = URLDecoder.decode(s, "UTF-8")
-
-  }
-
-  object ExtendedB3 {
-
-    def apply(identityProvider: IdentityProvider): ExtendedB3 =
-      new ExtendedB3(identityProvider)
-
-    object Headers {
-      val TraceIdentifier = "X-B3-TraceId"
-      val ParentSpanIdentifier = "X-B3-ParentSpanId"
-      val SpanIdentifier = "X-B3-SpanId"
-      val Sampled = "X-B3-Sampled"
-      val Flags = "X-B3-Flags"
-      val Baggage = "X-B3-Extra-Baggage"
-    }
-  }
-}
-
-trait TextMap {
-  def get(key: String): Option[String]
-  def put(key: String, value: String): Unit
-  def values: Iterator[(String, String)]
-}
-
-object TextMap {
-  class Default extends TextMap {
-    private val storage = mutable.Map.empty[String, String]
-    override def get(key: String): Option[String] = storage.get(key)
-    override def put(key: String, value: String): Unit = storage.put(key, value)
-    override def values: Iterator[(String, String)] = storage.toIterator
-  }
-
-  object Default {
-    def apply(): Default = new Default()
-  }
-}