1 files changed, 101 insertions, 0 deletions
diff --git a/simple/simple-http/src/main/java/org/simpleframework/http/socket/service/ServiceDispatcher.java b/simple/simple-http/src/main/java/org/simpleframework/http/socket/service/ServiceDispatcher.java
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+++ b/simple/simple-http/src/main/java/org/simpleframework/http/socket/service/ServiceDispatcher.java
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+/*
+ * ServiceDispatcher.java February 2014
+ *
+ * Copyright (C) 2014, Niall Gallagher <niallg@users.sf.net>
+ *
+ * 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 org.simpleframework.http.socket.service;
+
+import java.io.IOException;
+
+import org.simpleframework.common.thread.ConcurrentScheduler;
+import org.simpleframework.common.thread.Scheduler;
+import org.simpleframework.http.Request;
+import org.simpleframework.http.Response;
+import org.simpleframework.transport.reactor.ExecutorReactor;
+import org.simpleframework.transport.reactor.Reactor;
+
+/**
+ * The <code>ServiceDispatcher</code> object is used to perform the
+ * opening handshake for a WebSocket session. Once the session has been
+ * established it is connected to a <code>Service</code> where frames
+ * can be sent and received. If for any reason the handshake fails
+ * this will terminated the connection with a HTTP 400 response.
+ * 
+ * @author Niall Gallagher
+ */
+class ServiceDispatcher {   
+   
+   /**
+    * This is the session dispatcher used to dispatch the session.
+    */
+   private final SessionDispatcher dispatcher;    
+   
+   /**
+    * This is used to build the sessions from the handshake request.
+    */
+   private final SessionBuilder builder;   
+   
+   /**
+    * This is used asynchronously read frames from the TCP channel.
+    */
+   private final Scheduler scheduler;     
+   
+   /**
+    * This is used to notify of read events on the TCP channel.
+    */
+   private final Reactor reactor;
+
+   /**
+    * Constructor for the <code>ServiceDispatcher</code> object. The
+    * dispatcher created will dispatch WebSocket sessions to a service
+    * using the provided <code>Router</code> instance. 
+    * 
+    * @param router this is the router used to select a service
+    * @param threads this is the number of threads to use
+    */
+   public ServiceDispatcher(Router router, int threads) throws IOException {
+      this(router, threads, 10000);
+   }
+   
+   /**
+    * Constructor for the <code>ServiceDispatcher</code> object. The
+    * dispatcher created will dispatch WebSocket sessions to a service
+    * using the provided <code>Router</code> instance. 
+    * 
+    * @param router this is the router used to select a service
+    * @param threads this is the number of threads to use
+    * @param ping this is the frequency used to send ping frames
+    */
+   public ServiceDispatcher(Router router, int threads, long ping) throws IOException {
+      this.scheduler = new ConcurrentScheduler(FrameCollector.class, threads);      
+      this.reactor = new ExecutorReactor(scheduler);
+      this.builder = new SessionBuilder(scheduler, reactor, ping);
+      this.dispatcher = new SessionDispatcher(builder, router);      
+   }
+
+   /**
+    * This method is used to create a dispatch a <code>Session</code> to
+    * a specific service selected by a router. If the session initiating
+    * handshake fails for any reason this will close the underlying TCP
+    * connection and send a HTTP 400 response back to the client. 
+    * 
+    * @param request this is the session initiating request
+    * @param response this is the session initiating response
+    */
+   public void dispatch(Request request, Response response) {          
+      dispatcher.dispatch(request, response);
+   }
+}