Make Context implement Serializable, use Codecs instead of default serialization, only BroadcastKeys get serialized

1 files changed, 50 insertions, 0 deletions

diff --git a/kamon-core-tests/src/test/scala/kamon/context/ContextSerializationSpec.scala b/kamon-core-tests/src/test/scala/kamon/context/ContextSerializationSpec.scala
new file mode 100644
index 00000000..f7e7599f
--- /dev/null
+++ b/kamon-core-tests/src/test/scala/kamon/context/ContextSerializationSpec.scala
@@ -0,0 +1,50 @@
+/* =========================================================================================
+ * 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.context
+
+import java.io.{ByteArrayInputStream, ByteArrayOutputStream, ObjectInputStream, ObjectOutputStream}
+
+import kamon.Kamon
+import kamon.testkit.ContextTesting
+import org.scalatest.{Matchers, OptionValues, WordSpec}
+
+class ContextSerializationSpec extends WordSpec with Matchers with ContextTesting with OptionValues {
+  "the Context is Serializable" should {
+    "empty " in {
+      val bos = new ByteArrayOutputStream()
+      val oos = new ObjectOutputStream(bos)
+      oos.writeObject(Context.Empty)
+
+      val ois = new ObjectInputStream(new ByteArrayInputStream(bos.toByteArray))
+      val ctx = ois.readObject().asInstanceOf[Context]
+      ctx shouldBe Context.Empty
+    }
+
+    "full" in {
+      val sCtx = Context(StringBroadcastKey, Some("disi"))
+      val bos = new ByteArrayOutputStream()
+      val oos = new ObjectOutputStream(bos)
+      oos.writeObject(sCtx)
+
+      val ois = new ObjectInputStream(new ByteArrayInputStream(bos.toByteArray))
+      val rCtx = ois.readObject().asInstanceOf[Context]
+      rCtx shouldBe sCtx
+    }
+
+  }
+
+  val ContextCodec = new Codecs(Kamon.config())
+}
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