added a simple status viewer servlet for expedition messages

java/com.sap.sailing.server.gateway/WEB-INF/web.xml

@@ -115,6 +115,15 @@
 		<url-pattern>/wind</url-pattern>
 	</servlet-mapping>
 
+	<servlet>
+		<servlet-name>ExpeditionWindMeasureStatusGetServlet</servlet-name>
+		<servlet-class>com.sap.sailing.server.gateway.impl.ExpeditionWindMeasureStatusGetServlet</servlet-class>
+	</servlet>
+	<servlet-mapping>
+		<servlet-name>ExpeditionWindMeasureStatusGetServlet</servlet-name>
+		<url-pattern>/expeditionWindStatus</url-pattern>
+	</servlet-mapping>
+		
 	<servlet>
 		<servlet-name>LiveRaceRankingRssGetServlet</servlet-name>
 		<servlet-class>com.sap.sailing.server.gateway.impl.LiveRaceRankingRssGetServlet</servlet-class>

java/com.sap.sailing.server.gateway/build.properties

@@ -4,4 +4,6 @@ bin.includes = META-INF/,\
                .,\
                WEB-INF/,\
                webservices/,\
-               utils/
+               utils/,\
+               jsp/,\
+               main.css

java/com.sap.sailing.server.gateway/src/com/sap/sailing/server/gateway/impl/ExpeditionWindMeasureStatusGetServlet.java

@@ -0,0 +1,87 @@
+package com.sap.sailing.server.gateway.impl;
+
+import java.io.IOException;
+import java.io.PrintWriter;
+import java.net.SocketException;
+import java.util.Date;
+import java.util.HashMap;
+import java.util.Map;
+
+import javax.servlet.ServletException;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+import com.sap.sailing.expeditionconnector.ExpeditionListener;
+import com.sap.sailing.expeditionconnector.ExpeditionMessage;
+import com.sap.sailing.server.gateway.SailingServerHttpServlet;
+
+public class ExpeditionWindMeasureStatusGetServlet extends SailingServerHttpServlet implements ExpeditionListener {
+    private static final long serialVersionUID = -6791613843435009810L;
+
+    private Map<Integer, ExpeditionMessageInfo> lastMessageInfosPerBoat;
+    private boolean isExpeditionListenerRegistered;
+    
+    public ExpeditionWindMeasureStatusGetServlet() {
+        super();
+        lastMessageInfosPerBoat = new HashMap<Integer, ExpeditionMessageInfo>();
+        isExpeditionListenerRegistered = false;
+    }
+
+    @Override
+    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
+        if(!isExpeditionListenerRegistered) {
+            isExpeditionListenerRegistered = registerExpeditionListener();
+        }
+        
+        resp.setContentType("text/html");
+
+        PrintWriter out = resp.getWriter();
+        out.println("<html>");
+        out.println("<head>");
+        out.println("<title>Expedition Wind Status</title>");
+        out.println("</head>");
+        out.println("<body>");
+        out.println("<h3>Expedition Wind Status</h3>");
+        out.println("<br/>");
+        for(ExpeditionMessageInfo info: lastMessageInfosPerBoat.values()) {
+            out.println("Boat-No:" + "&nbsp;" + info.boatID);
+            out.println("<br/>");
+            out.println("Last message received:" + "&nbsp;" + info.messageReceivedAt.toString());
+            out.println("<br/>");
+            out.println("Last message:" + "&nbsp;" + info.message.getOriginalMessage());
+            out.println("<br/>");
+        }
+        out.println("</body>");
+        out.println("</html>");
+        
+        out.close();
+    }
+
+    private boolean registerExpeditionListener() {
+        boolean result = false;
+        try {
+            getService().addExpeditionListener(this, false);
+            result = true;
+        } catch (SocketException e) {
+            result = false;
+        }
+        return result;
+    }
+    
+    @Override
+    public void received(final ExpeditionMessage message) {
+        if(message != null && message.getBoatID() >= 0) {
+            ExpeditionMessageInfo info = new ExpeditionMessageInfo();
+            info.boatID = message.getBoatID();
+            info.message = message;
+            info.messageReceivedAt = new Date();
+            lastMessageInfosPerBoat.put(info.boatID, info);
+        }
+    }
+
+    private class ExpeditionMessageInfo {
+        Integer boatID;
+        ExpeditionMessage message;
+        Date messageReceivedAt;
+    }
+}