1 files changed, 71 insertions, 0 deletions
diff --git a/shared/src/main/scala/spray/json/JsonFormat.scala b/shared/src/main/scala/spray/json/JsonFormat.scala
new file mode 100644
index 0000000..c4915cc
--- /dev/null
+++ b/shared/src/main/scala/spray/json/JsonFormat.scala
@@ -0,0 +1,71 @@
+/*
+ * Original implementation (C) 2009-2011 Debasish Ghosh
+ * Adapted and extended in 2011 by Mathias Doenitz
+ *
+ * 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 spray.json
+
+import annotation.implicitNotFound
+
+/**
+  * Provides the JSON deserialization for type T.
+ */
+@implicitNotFound(msg = "Cannot find JsonReader or JsonFormat type class for ${T}")
+trait JsonReader[T] {
+  def read(json: JsValue): T
+}
+
+object JsonReader {
+  implicit def func2Reader[T](f: JsValue => T): JsonReader[T] = new JsonReader[T] {
+    def read(json: JsValue) = f(json)
+  }
+}
+
+/**
+  * Provides the JSON serialization for type T.
+ */
+@implicitNotFound(msg = "Cannot find JsonWriter or JsonFormat type class for ${T}")
+trait JsonWriter[T] {
+  def write(obj: T): JsValue
+}
+
+object JsonWriter {
+  implicit def func2Writer[T](f: T => JsValue): JsonWriter[T] = new JsonWriter[T] {
+    def write(obj: T) = f(obj)
+  }
+}
+
+/**
+  * Provides the JSON deserialization and serialization for type T.
+ */
+trait JsonFormat[T] extends JsonReader[T] with JsonWriter[T]
+
+/**
+ * A special JsonReader capable of reading a legal JSON root object, i.e. either a JSON array or a JSON object.
+ */
+@implicitNotFound(msg = "Cannot find RootJsonReader or RootJsonFormat type class for ${T}")
+trait RootJsonReader[T] extends JsonReader[T]
+
+/**
+ * A special JsonWriter capable of writing a legal JSON root object, i.e. either a JSON array or a JSON object.
+ */
+@implicitNotFound(msg = "Cannot find RootJsonWriter or RootJsonFormat type class for ${T}")
+trait RootJsonWriter[T] extends JsonWriter[T]
+
+/**
+ * A special JsonFormat signaling that the format produces a legal JSON root object, i.e. either a JSON array
+ * or a JSON object.
+ */
+trait RootJsonFormat[T] extends JsonFormat[T] with RootJsonReader[T] with RootJsonWriter[T]
+\ No newline at end of file