From 92e46bea722a2dcf038353101c7f705d38c08097 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Kjetil=20=C3=98rbekk?= <kjetil.orbekk@gmail.com>
Date: Mon, 23 Jan 2012 21:13:30 +0100
Subject: Support more than one rpc Service on a Jetty server.

Implent a URL based lookup that determines which service to handle a
request.
---
 same/src/main/java/com/orbekk/same/ClientApp.java  |  3 ++-
 same/src/main/java/com/orbekk/same/MasterApp.java  |  3 ++-
 same/src/main/java/com/orbekk/same/RpcHandler.java | 29 +++++++++++++++++-----
 3 files changed, 27 insertions(+), 8 deletions(-)

(limited to 'same')

diff --git a/same/src/main/java/com/orbekk/same/ClientApp.java b/same/src/main/java/com/orbekk/same/ClientApp.java
index 64fad20..a98b719 100644
--- a/same/src/main/java/com/orbekk/same/ClientApp.java
+++ b/same/src/main/java/com/orbekk/same/ClientApp.java
@@ -27,7 +27,8 @@ public class ClientApp {
         
         JsonRpcServer jsonServer = new JsonRpcServer(client, ClientService.class);
         server = new Server(port);
-        RpcHandler rpcHandler = new RpcHandler(jsonServer, client);
+        RpcHandler rpcHandler = new RpcHandler(client);
+        rpcHandler.addRpcServer("/ClientService.json", jsonServer);
         server.setHandler(rpcHandler);
         
         try {
diff --git a/same/src/main/java/com/orbekk/same/MasterApp.java b/same/src/main/java/com/orbekk/same/MasterApp.java
index ee5f50b..428336c 100644
--- a/same/src/main/java/com/orbekk/same/MasterApp.java
+++ b/same/src/main/java/com/orbekk/same/MasterApp.java
@@ -21,7 +21,8 @@ public class MasterApp {
                 broadcaster);
         JsonRpcServer jsonServer = new JsonRpcServer(master, MasterService.class);
         server = new Server(port);
-        RpcHandler rpcHandler = new RpcHandler(jsonServer, master);
+        RpcHandler rpcHandler = new RpcHandler(master);
+        rpcHandler.addRpcServer("/MasterService.json", jsonServer);
         server.setHandler(rpcHandler);
         
         Thread masterThread = new Thread(master);
diff --git a/same/src/main/java/com/orbekk/same/RpcHandler.java b/same/src/main/java/com/orbekk/same/RpcHandler.java
index 7b2adb3..cddb307 100644
--- a/same/src/main/java/com/orbekk/same/RpcHandler.java
+++ b/same/src/main/java/com/orbekk/same/RpcHandler.java
@@ -3,6 +3,8 @@ package com.orbekk.same;
 import com.googlecode.jsonrpc4j.JsonRpcServer;
 import com.orbekk.net.HttpUtil;
 import java.io.IOException;
+import java.util.HashMap;
+import java.util.Map;
 import javax.servlet.ServletException;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
@@ -13,14 +15,24 @@ import org.slf4j.LoggerFactory;
 
 public class RpcHandler extends AbstractHandler {
     private Logger logger = LoggerFactory.getLogger(getClass());
-    private JsonRpcServer rpcServer;
+    private JsonRpcServer rpcServer = null;
     private UrlReceiver urlReceiver;
+    private Map<String, JsonRpcServer> rpcServers =
+            new HashMap<String, JsonRpcServer>();
     
-    public RpcHandler(JsonRpcServer rpcServer,
-            UrlReceiver urlReceiver) {
-        this.rpcServer = rpcServer;
+    public RpcHandler(UrlReceiver urlReceiver) {
         this.urlReceiver = urlReceiver;
     }
+
+    /**
+     * Add an RpcServer to this Handler.
+     *
+     * @param url the base url of the service, e.g.
+     *          /MyService.json
+     */
+    public void addRpcServer(String url, JsonRpcServer rpcServer) {
+        rpcServers.put(url, rpcServer);
+    }
     
     @Override
     public synchronized void handle(String target, Request baseRequest,
@@ -41,11 +53,16 @@ public class RpcHandler extends AbstractHandler {
                 remotePort + "/pong";
             logger.info("Got ping. Sending pong to {}", pongUrl);
             HttpUtil.sendHttpRequest(pongUrl);
+            baseRequest.setHandled(true);
         } else if (target.equals("/pong")) {
             logger.info("Received pong from {}", request.getRemoteAddr());
+            baseRequest.setHandled(true);
         } else {
-            rpcServer.handle(request, response);
+            JsonRpcServer server = rpcServers.get(target);
+            if (server != null) {
+                server.handle(request, response);
+                baseRequest.setHandled(true);
+            }
         }
-        baseRequest.setHandled(true);
     }
 }
-- 
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