1 files changed, 84 insertions, 0 deletions
diff --git a/simple/simple-transport/src/main/java/org/simpleframework/transport/connect/SocketAnalyzer.java b/simple/simple-transport/src/main/java/org/simpleframework/transport/connect/SocketAnalyzer.java
new file mode 100644
index 0000000..be6b95c
--- /dev/null
+++ b/simple/simple-transport/src/main/java/org/simpleframework/transport/connect/SocketAnalyzer.java
@@ -0,0 +1,84 @@
+/*
+ * SocketAnalyzer.java February 2012
+ *
+ * Copyright (C) 2007, 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.connect;
+
+import java.nio.channels.SelectableChannel;
+
+import org.simpleframework.transport.trace.TraceAnalyzer;
+import org.simpleframework.transport.trace.Trace;
+
+/**
+ * The <code>SocketAnalyzer</code> is used to wrap an analyzer object. 
+ * Wrapping an analyzer in this way ensures that even if the analyzer 
+ * is badly written there is little chance that it will affect the
+ * operation of the server. All <code>Trace</code> objects returned
+ * from this will catch all exceptions within the created trace.
+ * 
+ * @author Niall Gallagher
+ */
+class SocketAnalyzer implements TraceAnalyzer {
+   
+   /**
+    * This is the analyzer that is used to create the trace objects.
+    */
+   private final TraceAnalyzer analyzer;
+   
+   /**
+    * Constructor for the <code>SocketAnalyzer</code> object. This will
+    * be given the analyzer that is to be used to create traces. This 
+    * can be a null value, in which case the trace provided will be
+    * a simple empty void that swallows all trace events.
+    * 
+    * @param analyzer the analyzer that is to be wrapped by this
+    */
+   public SocketAnalyzer(TraceAnalyzer analyzer) {
+      this.analyzer = analyzer;
+   }
+ 
+   /**
+    * This method is used to attach a trace to the specified channel.
+    * Attaching a trace basically means associating events from that
+    * trace with the specified socket. It ensures that the events 
+    * from a specific channel can be observed in isolation.
+    * 
+    * @param channel this is the channel to associate with the trace
+    * 
+    * @return this returns a trace associated with the channel
+    */
+   public Trace attach(SelectableChannel channel) {
+      Trace trace = null;
+      
+      if(analyzer != null) {
+         trace = analyzer.attach(channel);
+      }
+      return new SocketTrace(trace);
+   }
+   
+   /**
+    * This is used to stop the analyzer and clear all trace information.
+    * Stopping the analyzer is typically done when the server is stopped
+    * and is used to free any resources associated with the analyzer. If
+    * an analyzer does not hold information this method can be ignored.
+    */
+   public void stop() {
+      if(analyzer != null) {
+         analyzer.stop();
+      }
+   }
+}
+\ No newline at end of file