Add source code from jdisc_mbus_service into container-messagebus.

1 files changed, 59 insertions, 0 deletions

diff --git a/container-messagebus/src/main/java/com/yahoo/messagebus/jdisc/MbusRequestHandler.java b/container-messagebus/src/main/java/com/yahoo/messagebus/jdisc/MbusRequestHandler.java
new file mode 100644
index 00000000000..fb5657a9215
--- /dev/null
+++ b/container-messagebus/src/main/java/com/yahoo/messagebus/jdisc/MbusRequestHandler.java
@@ -0,0 +1,59 @@
+// Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+package com.yahoo.messagebus.jdisc;
+
+import com.yahoo.jdisc.Request;
+import com.yahoo.jdisc.handler.AbstractRequestHandler;
+import com.yahoo.jdisc.handler.CompletionHandler;
+import com.yahoo.jdisc.handler.ContentChannel;
+import com.yahoo.jdisc.handler.ResponseHandler;
+import com.yahoo.messagebus.Message;
+import com.yahoo.messagebus.MessageHandler;
+import com.yahoo.messagebus.Reply;
+import com.yahoo.messagebus.ReplyHandler;
+
+/**
+ * @author Simon Thoresen Hult
+ */
+public abstract class MbusRequestHandler extends AbstractRequestHandler implements MessageHandler {
+
+    @Override
+    public ContentChannel handleRequest(final Request request, final ResponseHandler handler) {
+        if (!(request instanceof MbusRequest)) {
+            throw new UnsupportedOperationException("Expected MbusRequest, got " + request.getClass().getName() + ".");
+        }
+        final Message msg = ((MbusRequest)request).getMessage();
+        msg.pushHandler(new RespondingReplyHandler(handler));
+        handleMessage(msg);
+        return null;
+    }
+
+    private static class RespondingReplyHandler implements ReplyHandler {
+
+        private final ResponseHandler handler;
+
+        RespondingReplyHandler(final ResponseHandler handler) {
+            this.handler = handler;
+        }
+
+        @Override
+        public void handleReply(final Reply reply) {
+            final MbusResponse response = new MbusResponse(StatusCodes.fromMbusReply(reply), reply);
+            handler.handleResponse(response).close(IgnoringCompletionHandler.INSTANCE);
+        }
+    }
+
+    private static class IgnoringCompletionHandler implements CompletionHandler {
+
+        public static final IgnoringCompletionHandler INSTANCE = new IgnoringCompletionHandler();
+
+        @Override
+        public void completed() {
+
+        }
+
+        @Override
+        public void failed(final Throwable t) {
+
+        }
+    }
+}