+act #3770 Added Java 8 friendly APIs for Actor and FSM

akka-actor/src/main/java/akka/japi/pf/AbstractMatch.java

@@ -0,0 +1,36 @@
+/**
+ * Copyright (C) 2009-2014 Typesafe Inc. <http://www.typesafe.com>
+ */
+
+package akka.japi.pf;
+
+import scala.PartialFunction;
+
+/**
+ * Version of {@link scala.PartialFunction} that can be built during
+ * runtime from Java.
+ *
+ * @param <I> the input type, that this PartialFunction will be applied to
+ * @param <R> the return type, that the results of the application will have
+ */
+class AbstractMatch<I, R> {
+
+  protected final PartialFunction<I, R> statements;
+
+  AbstractMatch(PartialFunction<I, R> statements) {
+    PartialFunction<I, R> empty = CaseStatement.empty();
+    if (statements == null)
+      this.statements = empty;
+    else
+      this.statements = statements.orElse(empty);
+  }
+
+  /**
+   * Turn this {@link Match} into a {@link scala.PartialFunction}.
+   *
+   * @return  a partial function representation ot his {@link Match}
+   */
+  public PartialFunction<I, R> asPF() {
+    return statements;
+  }
+}