[FEATURE] Design evolution of the map service

Map implementation is still an empty stub

src/main/java/net/sourceforge/plantuml/servlet/DiagramResponse.java

@@ -57,21 +57,36 @@ class DiagramResponse {
     }
 
     void sendDiagram(String uml) throws IOException {
-        long today = System.currentTimeMillis();
         if (StringUtils.isDiagramCacheable(uml)) {
-            // Add http headers to force the browser to cache the image
-            response.addDateHeader("Expires", today + 31536000000L);
-            // today + 1 year
-            response.addDateHeader("Last-Modified", 1261440000000L);
-            // 2009 dec 22 constant date in the past
-            response.addHeader("Cache-Control", "public");
+            addHeaderForCache();
         }
         response.setContentType(getContentType());
         SourceStringReader reader = new SourceStringReader(uml);
         reader.generateImage(response.getOutputStream(), new FileFormatOption(format));
         response.flushBuffer();
     }
-
+    
+    void sendMap(String uml) throws IOException {
+        /* SourceStringReader reader = new SourceStringReader(uml);
+        String map = reader.generateImage(response.getOutputStream(), new FileFormatOption(FileFormat.PNG));
+        response.flushBuffer();
+        System.out.println( "map !!!" + map + "!!!");
+        String[] mapLines = map.split("[\\r\\n]");
+        for (int i=2; (i+1)<mapLines.length; i++)
+            System.out.println("map"+i+" !!!"+mapLines[i]+"!!!");
+        */
+   }
+    
+    private void addHeaderForCache() {
+        long today = System.currentTimeMillis();
+        // Add http headers to force the browser to cache the image
+        response.addDateHeader("Expires", today + 31536000000L);
+        // today + 1 year
+        response.addDateHeader("Last-Modified", 1261440000000L);
+        // 2009 dec 22 constant date in the past
+        response.addHeader("Cache-Control", "public");
+    }
+    
     private String getContentType() {
         return contentType.get(format);
     }

src/main/java/net/sourceforge/plantuml/servlet/MapServlet.java

@@ -23,27 +23,50 @@
  */
 package net.sourceforge.plantuml.servlet;
 
+import java.io.IOException;
+
+import javax.imageio.IIOException;
+import javax.servlet.ServletException;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
 import net.sourceforge.plantuml.FileFormat;
 
+import net.sourceforge.plantuml.servlet.utility.UmlExtractor;
+
 /* 
  * MAP servlet of the webapp.
  * This servlet produces the image map of the diagram in HTML format.
  */
 @SuppressWarnings("serial")
-public class MapServlet extends UmlDiagramService {
+public class MapServlet extends HttpServlet {
 
     @Override
+    public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {
+
+        // build the UML source from the compressed request parameter
+        String uml = UmlExtractor.getUmlSource(getSource(request.getRequestURI()));
+
+        // generate the response
+        DiagramResponse dr = new DiagramResponse(response, getOutputFormat());
+        try {
+            dr.sendMap(uml);
+        } catch (IIOException iioe) {
+            // Browser has closed the connection, do nothing
+        }
+        dr = null;
+    }
+    
     public String getSource(String uri) {
         String[] result = uri.split("/map/", 2);
         if (result.length != 2) {
             return "";
         } else {
-            //return result[1];
-            return "";
+            return result[1];
         }
     }
 
-    @Override
     public FileFormat getOutputFormat() {
         return FileFormat.ATXT;
     }

src/main/java/net/sourceforge/plantuml/servlet/UmlDiagramService.java

@@ -50,7 +50,8 @@ public abstract class UmlDiagramService extends HttpServlet {
         try {
             dr.sendDiagram(uml);
         } catch (IIOException iioe) {
-            // Browser has closed the connection, do nothing
+            // Browser has closed the connection, so the HTTP OutputStream is closed
+            // Silently catch the exception to avoid annoying log 
         }
         dr = null;
     }

src/main/java/net/sourceforge/plantuml/servlet/package.html

@@ -6,7 +6,7 @@
 - Service servlets : ImgServlet, SvgServlet, AsciiServlet, ProxyServlet that only produce a diagram as output.<br>
 <br>
 Structure of the service part of the PlantUmlServer: <br>
-<img src="http://www.plantuml.com/plantuml/img/XP5DReGm38NtdC9BAi4DkgbKJRkfMXNr004CH4f8nZ6eexPtR_WjC7JOaUVFVlQZaZa2QiiNqAXJ91TKIuahaw-aGgBoYaWTayWOCYMSWm-j7gKeIUW4gPKPmbS0O9jKoGnQ8tF8pHDo-CniEq8Xl-EvGST0vmXMihEcTWZax9sVCHkDmwPwWdME12Noy1NkmGcJhCiUCWrb64vAGtAFFqc59qDQSDVpsh1jU7ZxyJ-1h1cf4FwwpHRTiMiftByfMbeKtGfzECxtZFdzhQXL1DuHwivwtdGn5kw_u_Ww-Xli6vdFowW4r_ziOEhoW4ZQ8-B1PL8UC2_2_a-OU9Ddi4cy7p4sJQLTnjlShFUHpCJg1R5P9VOB" />
+<img src="http://www.plantuml.com/plantuml/img/XP51ReCm44Ntd6AMH0etwAPIbNPJjIhg0OoPm4WsTiPZrAZDtGk514ZIP3b_dlx_7jTK8g3riWUBja0EIJsNf7RbGjeIcavHHH1MMa0R5G9yMlD4gc9bS-IMDC9t0k1ZOKX3wwY4qZsZf2yYlYSCoWVk8WO1tgrX8GVlce30mQywZrFGQ9OBKrD1XPAxo1hJenAP5lo636uSMoKz_1R5HndcT9KSag7tMFeKshS-qzBhxTRpW6sV_FVCW4qv6apDh5diNvLVxWxJEMTPyF2JPPUNlS5snkDy0tfdzxK_OfV_DZ1DTOV8stl4Oz14_pCkEpzqCjM_ilq5" />
 </p>
 </body>
 </html>
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