1 files changed, 144 insertions, 0 deletions
diff --git a/simple/simple-transport/src/main/java/org/simpleframework/transport/SocketWrapper.java b/simple/simple-transport/src/main/java/org/simpleframework/transport/SocketWrapper.java
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+++ b/simple/simple-transport/src/main/java/org/simpleframework/transport/SocketWrapper.java
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+/*
+ * SocketWrapper.java February 2001
+ *
+ * Copyright (C) 2001, 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.transport;
+
+import java.nio.channels.SocketChannel;
+import java.util.HashMap;
+import java.util.Map;
+
+import javax.net.ssl.SSLEngine;
+
+import org.simpleframework.transport.trace.Trace;
+
+/**
+ * This is a <code>SocketWrapper</code> objects that represents a TCP 
+ * socket connections. This contains a map that allows attributes to be
+ * associated with the client connection. Attributes such as security
+ * certificates or other transport related details can be exposed to
+ * the <code>Request</code> using the socket attribute map.
+ * <p>
+ * This provides the connected <code>SocketChannel</code> that can be
+ * used to receive and response to HTTP requests. The socket channel 
+ * must be selectable and in non-blocking mode. If the socket is not
+ * in a non-blocking state the connection will not be processed.
+ *
+ * @author Niall Gallagher
+ */ 
+public class SocketWrapper implements Socket {
+   
+   /**
+    * This is the socket that provides the input and output.
+    */
+   private final SocketChannel channel;
+
+   /**
+    * This is used to encrypt content for secure connections.
+    */
+   private final SSLEngine engine;
+   
+   /**
+    * This can be used to trace specific events for the socket.
+    */
+   private final Trace trace;
+   
+   /**
+    * This is used to store the attributes for the socket.
+    */
+   private final Map map;
+
+   /**
+    * This creates a <code>SocketWrapper</code> from a socket channel. 
+    * Any implementations of the object may use this constructor to 
+    * ensure that all the data is initialized. 
+    *
+    * @param channel the socket channel that is used as the transport
+    * @param trace used to trace specific events for the socket
+    */    
+   public SocketWrapper(SocketChannel channel, Trace trace) {
+      this(channel, trace, null);
+   }
+   
+   /**
+    * This creates a <code>SecureSocket</code> from a socket channel. 
+    * Any implementations of the object may use this constructor to 
+    * ensure that all the data is initialized.  
+    *
+    * @param channel the socket channel that is used as the transport
+    * @param trace used to trace specific events for the socket
+    * @param engine this is the SSL engine used for secure transport
+    */   
+   public SocketWrapper(SocketChannel channel, Trace trace, SSLEngine engine) {
+      this.map = new HashMap();
+      this.channel = channel;
+      this.engine = engine;
+      this.trace = trace;
+   } 
+   
+   /**
+    * This is used to acquire the trace object that is associated
+    * with the socket. A trace object is used to collection details
+    * on what operations are being performed on the socket. For
+    * instance it may contain information relating to I/O events
+    * or more application specific events such as errors. 
+    * 
+    * @return this returns the trace associated with this socket
+    */
+   public Trace getTrace() {
+      return trace;
+   }
+   
+   /**
+    * This is used to acquire the SSL engine used for HTTPS. If the
+    * socket is connected to an SSL transport this returns an SSL
+    * engine which can be used to establish the secure connection
+    * and send and receive content over that connection. If this is
+    * null then the socket represents a normal transport. 
+    *  
+    * @return the SSL engine used to establish a secure transport
+    */   
+   public SSLEngine getEngine() {
+      return engine;
+   }
+   
+   /**
+    * This method is used to acquire the <code>SocketChannel</code>
+    * for the connection. This allows the server to acquire the input
+    * and output streams with which to communicate. It can also be 
+    * used to configure the connection and perform various network 
+    * operations that could otherwise not be performed.
+    *
+    * @return this returns the socket used by this HTTP socket
+    */    
+   public SocketChannel getChannel() {
+      return channel;
+   }
+  
+   /**
+    * This method is used to get the <code>Map</code> of attributes 
+    * by this socket. The attributes map is used to maintain details
+    * about the connection. Information such as security credentials
+    * to client details can be placed within the attribute map.
+    *
+    * @return this returns the map of attributes for this socket
+    */   
+   public Map getAttributes() {
+      return map;           
+   }
+}
+