example for Streams log operator (#25283)

* and added all log levels in Attributes for convenient single access point
2018-06-30 05:10:10 +02:00 · 2018-06-30 05:10:10 +02:00 · 02f6899952
commit 02f6899952
parent 33904de972
4 changed files with 84 additions and 2 deletions
--- a/akka-docs/src/test/scala/docs/stream/operators/SourceOrFlow.scala
+++ b/akka-docs/src/test/scala/docs/stream/operators/SourceOrFlow.scala
@ -0,0 +1,29 @@
+/**
+ * Copyright (C) 2018 Lightbend Inc. <https://www.lightbend.com>
+ */
+
+package docs.stream.operators
+
+import akka.stream.scaladsl._
+
+//
+
+object SourceOrFlow {
+
+  def logExample(): Unit = {
+    //#log
+    import akka.stream.Attributes
+
+    //#log
+
+    Flow[String]
+      //#log
+      .log(name = "myStream")
+      .addAttributes(Attributes.logLevels(
+        onElement = Attributes.LogLevels.Off,
+        onFailure = Attributes.LogLevels.Error,
+        onFinish = Attributes.LogLevels.Info))
+    //#log
+  }
+
+}