Changeset 1991 for trunk/autoquest-httpmonitor/src/main/java/de/ugoe/cs/autoquest/httpmonitor/HttpMonitorServlet.java

Timestamp:

07/08/15 09:03:46 (9 years ago)

Author:

pharms

Message:

• added ordering id for requests and responses

File:

• trunk/autoquest-httpmonitor/src/main/java/de/ugoe/cs/autoquest/httpmonitor/HttpMonitorServlet.java (modified) (3 diffs)

trunk/autoquest-httpmonitor/src/main/java/de/ugoe/cs/autoquest/httpmonitor/HttpMonitorServlet.java

@@ -33 +33 @@
  * the servlet deployed in the web server that receives all recorded exchanges from the proxy. The
  * exchanges are parsed and forwarded to the provided exchange handler. If an exchange can not
- * be parsed it is discarded. Exchanges are only received via the POST HTTP method.
+ * be parsed it is discarded. Exchanges are only received via the POST HTTP method. Via the GET
+ * method, the servlet provides unique ordering ids as a header parameter in the response. The
+ * header parameter is named "X-AutoQUEST-OrderingId". For creating the ids it uses a provided id
+ * generator.
  * </p>
  * 
@@ -47 +50 @@
      */
     private transient HttpMonitorExchangeHandler exchangeHandler;
+    
+    /**
+     * the id generator used to return new unique ids.
+     */
+    private transient IdGenerator idGenerator;
 
     /**
      * <p>
      * initializes the servlet with the exchange handler to which all exchanges shall be forwarded
+     * and the id generator to be used for returning new ids
      * </p>
      *
      * @param exchangeHandler the exchange handler that shall receive all exchanges
+     * @param idGenerator     the id generator used to generate new ids
      */
-    HttpMonitorServlet(HttpMonitorExchangeHandler exchangeHandler) {
+    HttpMonitorServlet(HttpMonitorExchangeHandler exchangeHandler, IdGenerator idGenerator) {
         this.exchangeHandler = exchangeHandler;
+        this.idGenerator = idGenerator;
     }
 
@@ -87 +98 @@
         }
     }
+
+    /**
+     * this implements handling of doGet. For this servlet this means that we return a unique
+     * ordering id which can be used by proxies as ordering ids for requests and responses.
+     * 
+     * (non-Javadoc) (non-Javadoc)
+     * @see HttpServlet#doGet(HttpServletRequest, HttpServletResponse)
+     */
+    @Override
+    protected void doGet(HttpServletRequest request, HttpServletResponse response)
+        throws ServletException, IOException
+    {
+        response.setHeader("X-AutoQUEST-OrderingId", Long.toString(idGenerator.getNextId()));
+    }
     
 }