1 files changed, 93 insertions, 0 deletions
diff --git a/simple/simple-http/src/main/java/org/simpleframework/http/socket/service/SessionBuilder.java b/simple/simple-http/src/main/java/org/simpleframework/http/socket/service/SessionBuilder.java
new file mode 100644
index 0000000..59864ee
--- /dev/null
+++ b/simple/simple-http/src/main/java/org/simpleframework/http/socket/service/SessionBuilder.java
@@ -0,0 +1,93 @@
+/*
+ * SessionBuilder.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.Scheduler;
+import org.simpleframework.http.Request;
+import org.simpleframework.http.Response;
+import org.simpleframework.http.socket.Session;
+import org.simpleframework.transport.reactor.Reactor;
+
+/**
+ * The <code>SessionBuilder</code> object is used to create sessions
+ * for connected WebSockets. Before the session is created a response
+ * is sent back to the connected client. If for some reason the session
+ * is not valid or does not conform to the requirements of RFC 6455
+ * then a HTTP 400 response code is sent and the TCP channel is closed.
+ * 
+ * @author Niall Gallagher
+ */
+class SessionBuilder {
+   
+   /**
+    * This is the scheduler that is used to ping WebSocket sessions.
+    */
+   private final Scheduler scheduler;
+   
+   /**
+    * This is the reactor used to register for I/O notifications.
+    */
+   private final Reactor reactor;
+   
+   /**
+    * This is the frequency the server should send out ping frames.
+    */
+   private final long ping;
+   
+   /**
+    * Constructor for the <code>SessionBuilder</code> object. This is
+    * used to create sessions using the request and response associated
+    * with the WebSocket opening handshake. 
+    * 
+    * @param scheduler this is the shared thread pool used for pinging
+    * @param reactor this is used to check for I/O notifications
+    * @param ping this is the frequency to send out ping frames
+    */
+   public SessionBuilder(Scheduler scheduler, Reactor reactor, long ping) {
+      this.scheduler = scheduler;
+      this.reactor = reactor;
+      this.ping = ping;
+   }
+   
+   /**
+    * This is used to create a WebSocket session. If at any point there 
+    * is an error creating the session the underlying TCP connection is
+    * closed and a <code>Session</code> is returned regardless. 
+    * 
+    * @param request this is the request associated with this session
+    * @param response this is the response associated with this session
+    * 
+    * @return this returns the session associated with the WebSocket
+    */
+   public Session create(Request request, Response response) throws Exception {
+      FrameConnection connection = new FrameConnection(request, response, reactor);
+      ResponseBuilder builder = new ResponseBuilder(request, response);
+      StatusChecker checker = new StatusChecker(connection, request, scheduler, ping);
+
+      try {
+         builder.commit();
+         checker.start();
+      } catch(Exception e) {
+         throw new IOException("Could not send response", e);
+      }
+      return connection.open();
+   }
+}