Combine ApplicationServlet and AAS and rename to VaadinServlet (#9460)

13 files changed, 65 insertions, 148 deletions

diff --git a/server/src/com/vaadin/Application.java b/server/src/com/vaadin/Application.java
index 8a043154d7..2af3c6a59f 100644
--- a/server/src/com/vaadin/Application.java
+++ b/server/src/com/vaadin/Application.java
@@ -48,7 +48,6 @@ import com.vaadin.data.util.converter.Converter;
 import com.vaadin.data.util.converter.ConverterFactory;
 import com.vaadin.data.util.converter.DefaultConverterFactory;
 import com.vaadin.event.EventRouter;
-import com.vaadin.server.AbstractApplicationServlet;
 import com.vaadin.server.AbstractErrorMessage;
 import com.vaadin.server.ApplicationContext;
 import com.vaadin.server.BootstrapFragmentResponse;
@@ -64,6 +63,7 @@ import com.vaadin.server.RequestHandler;
 import com.vaadin.server.ServletApplicationContext;
 import com.vaadin.server.Terminal;
 import com.vaadin.server.UIProvider;
+import com.vaadin.server.VaadinServlet;
 import com.vaadin.server.VariableOwner;
 import com.vaadin.server.WrappedRequest;
 import com.vaadin.server.WrappedRequest.BrowserDetails;
@@ -1728,7 +1728,7 @@ public class Application implements Terminal.ErrorListener, Serializable {
      * Handles a request by passing it to each registered {@link RequestHandler}
      * in turn until one produces a response. This method is used for requests
      * that have not been handled by any specific functionality in the terminal
-     * implementation (e.g. {@link AbstractApplicationServlet}).
+     * implementation (e.g. {@link VaadinServlet}).
      * <p>
      * The request handlers are invoked in the revere order in which they were
      * added to the application until a response has been produced. This means
diff --git a/server/src/com/vaadin/data/Validator.java b/server/src/com/vaadin/data/Validator.java
index 1755a44920..421d88f574 100644
--- a/server/src/com/vaadin/data/Validator.java
+++ b/server/src/com/vaadin/data/Validator.java
@@ -18,7 +18,7 @@ package com.vaadin.data;
 
 import java.io.Serializable;
 
-import com.vaadin.server.AbstractApplicationServlet;
+import com.vaadin.server.VaadinServlet;
 
 /**
  * Interface that implements a method for validating if an {@link Object} is
@@ -144,8 +144,7 @@ public interface Validator extends Serializable {
          * Note that this API may change in future versions.
          */
         public String getHtmlMessage() {
-            return AbstractApplicationServlet
-                    .safeEscapeForHtml(getLocalizedMessage());
+            return VaadinServlet.safeEscapeForHtml(getLocalizedMessage());
         }
 
         /**
diff --git a/server/src/com/vaadin/server/AbstractCommunicationManager.java b/server/src/com/vaadin/server/AbstractCommunicationManager.java
index 740ecf843b..2e42f51249 100644
--- a/server/src/com/vaadin/server/AbstractCommunicationManager.java
+++ b/server/src/com/vaadin/server/AbstractCommunicationManager.java
@@ -1484,7 +1484,7 @@ public abstract class AbstractCommunicationManager implements Serializable {
             themeName = requestThemeName;
         }
         if (themeName == null) {
-            themeName = AbstractApplicationServlet.getDefaultTheme();
+            themeName = VaadinServlet.getDefaultTheme();
         }
         return themeName;
     }
@@ -1502,7 +1502,7 @@ public abstract class AbstractCommunicationManager implements Serializable {
     public boolean isXSRFEnabled(Application application) {
         return !"true"
                 .equals(application
-                        .getProperty(AbstractApplicationServlet.SERVLET_PARAMETER_DISABLE_XSRF_PROTECTION));
+                        .getProperty(VaadinServlet.SERVLET_PARAMETER_DISABLE_XSRF_PROTECTION));
     }
 
     /**
diff --git a/server/src/com/vaadin/server/AbstractErrorMessage.java b/server/src/com/vaadin/server/AbstractErrorMessage.java
index 0928ea4bd4..4e30dff06f 100644
--- a/server/src/com/vaadin/server/AbstractErrorMessage.java
+++ b/server/src/com/vaadin/server/AbstractErrorMessage.java
@@ -109,12 +109,11 @@ public abstract class AbstractErrorMessage implements ErrorMessage {
         String result = null;
         switch (getMode()) {
         case TEXT:
-            result = AbstractApplicationServlet.safeEscapeForHtml(getMessage());
+            result = VaadinServlet.safeEscapeForHtml(getMessage());
             break;
         case PREFORMATTED:
-            result = "<pre>"
-                    + AbstractApplicationServlet
-                            .safeEscapeForHtml(getMessage()) + "</pre>";
+            result = "<pre>" + VaadinServlet.safeEscapeForHtml(getMessage())
+                    + "</pre>";
             break;
         case XHTML:
             result = getMessage();
diff --git a/server/src/com/vaadin/server/ApplicationServlet.java b/server/src/com/vaadin/server/ApplicationServlet.java
deleted file mode 100644
index 905b48d62f..0000000000
--- a/server/src/com/vaadin/server/ApplicationServlet.java
+++ /dev/null
@@ -1,85 +0,0 @@
-/* 
- * Copyright 2011 Vaadin Ltd.
- * 
- * 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 com.vaadin.server;
-
-import javax.servlet.ServletException;
-import javax.servlet.http.HttpServletRequest;
-
-import com.vaadin.Application;
-import com.vaadin.server.ServletPortletHelper.ApplicationClassException;
-
-/**
- * This servlet connects a Vaadin Application to Web.
- * 
- * @author Vaadin Ltd.
- * @since 5.0
- */
-
-@SuppressWarnings("serial")
-public class ApplicationServlet extends AbstractApplicationServlet {
-
-    // Private fields
-    private Class<? extends Application> applicationClass;
-
-    /**
-     * Called by the servlet container to indicate to a servlet that the servlet
-     * is being placed into service.
-     * 
-     * @param servletConfig
-     *            the object containing the servlet's configuration and
-     *            initialization parameters
-     * @throws javax.servlet.ServletException
-     *             if an exception has occurred that interferes with the
-     *             servlet's normal operation.
-     */
-    @Override
-    public void init(javax.servlet.ServletConfig servletConfig)
-            throws javax.servlet.ServletException {
-        super.init(servletConfig);
-
-        // Loads the application class using the classloader defined in the
-        // deployment configuration
-
-        try {
-            applicationClass = ServletPortletHelper
-                    .getApplicationClass(getDeploymentConfiguration());
-        } catch (ApplicationClassException e) {
-            throw new ServletException(e);
-        }
-    }
-
-    @Override
-    protected Application getNewApplication(HttpServletRequest request)
-            throws ServletException {
-
-        // Creates a new application instance
-        try {
-            final Application application = getApplicationClass().newInstance();
-            application.addUIProvider(new DefaultUIProvider());
-
-            return application;
-        } catch (final IllegalAccessException e) {
-            throw new ServletException("getNewApplication failed", e);
-        } catch (final InstantiationException e) {
-            throw new ServletException("getNewApplication failed", e);
-        }
-    }
-
-    protected Class<? extends Application> getApplicationClass() {
-        return applicationClass;
-    }
-}
diff --git a/server/src/com/vaadin/server/BootstrapHandler.java b/server/src/com/vaadin/server/BootstrapHandler.java
index 98ed1071de..a1438312b6 100644
--- a/server/src/com/vaadin/server/BootstrapHandler.java
+++ b/server/src/com/vaadin/server/BootstrapHandler.java
@@ -277,7 +277,7 @@ public abstract class BootstrapHandler implements RequestHandler {
                     .getConfiguredWidgetset(request);
         }
 
-        widgetset = AbstractApplicationServlet.stripSpecialChars(widgetset);
+        widgetset = VaadinServlet.stripSpecialChars(widgetset);
         return widgetset;
     }
 
@@ -450,7 +450,7 @@ public abstract class BootstrapHandler implements RequestHandler {
         String staticFileLocation = deploymentConfiguration
                 .getStaticFileLocation(request);
         String widgetsetBase = staticFileLocation + "/"
-                + AbstractApplicationServlet.WIDGETSET_DIRECTORY_PATH;
+                + VaadinServlet.WIDGETSET_DIRECTORY_PATH;
         defaults.put("widgetsetBase", widgetsetBase);
 
         if (!application.isProductionMode()) {
@@ -486,8 +486,8 @@ public abstract class BootstrapHandler implements RequestHandler {
         WrappedRequest request = context.getRequest();
         final String staticFilePath = request.getDeploymentConfiguration()
                 .getStaticFileLocation(request);
-        return staticFilePath + "/"
-                + AbstractApplicationServlet.THEME_DIRECTORY_PATH + themeName;
+        return staticFilePath + "/" + VaadinServlet.THEME_DIRECTORY_PATH
+                + themeName;
     }
 
     /**
@@ -517,7 +517,7 @@ public abstract class BootstrapHandler implements RequestHandler {
 
         // XSS preventation, theme names shouldn't contain special chars anyway.
         // The servlet denies them via url parameter.
-        themeName = AbstractApplicationServlet.stripSpecialChars(themeName);
+        themeName = VaadinServlet.stripSpecialChars(themeName);
 
         return themeName;
     }
diff --git a/server/src/com/vaadin/server/CommunicationManager.java b/server/src/com/vaadin/server/CommunicationManager.java
index af28438f57..cc92023919 100644
--- a/server/src/com/vaadin/server/CommunicationManager.java
+++ b/server/src/com/vaadin/server/CommunicationManager.java
@@ -45,7 +45,7 @@ public class CommunicationManager extends AbstractCommunicationManager {
      */
     @Deprecated
     public CommunicationManager(Application application,
-            AbstractApplicationServlet applicationServlet) {
+            VaadinServlet applicationServlet) {
         super(application);
     }
 
@@ -100,7 +100,7 @@ public class CommunicationManager extends AbstractCommunicationManager {
             @Override
             public String getThemeName(BootstrapContext context) {
                 String themeName = context.getRequest().getParameter(
-                        AbstractApplicationServlet.URL_PARAMETER_THEME);
+                        VaadinServlet.URL_PARAMETER_THEME);
                 if (themeName == null) {
                     themeName = super.getThemeName(context);
                 }
@@ -117,7 +117,7 @@ public class CommunicationManager extends AbstractCommunicationManager {
         ServletContext servletContext = context.getHttpSession()
                 .getServletContext();
         return servletContext.getResourceAsStream("/"
-                + AbstractApplicationServlet.THEME_DIRECTORY_PATH + themeName
-                + "/" + resource);
+                + VaadinServlet.THEME_DIRECTORY_PATH + themeName + "/"
+                + resource);
     }
 }
diff --git a/server/src/com/vaadin/server/GAEApplicationServlet.java b/server/src/com/vaadin/server/GAEVaadinServlet.java
index 240984c760..642737f73b 100644
--- a/server/src/com/vaadin/server/GAEApplicationServlet.java
+++ b/server/src/com/vaadin/server/GAEVaadinServlet.java
@@ -103,7 +103,7 @@ import com.google.apphosting.api.DeadlineExceededException;
  * possible.
  * </ul>
  */
-public class GAEApplicationServlet extends ApplicationServlet {
+public class GAEVaadinServlet extends VaadinServlet {
 
     // memcache mutex is MUTEX_BASE + sessio id
     private static final String MUTEX_BASE = "_vmutex";
@@ -423,6 +423,6 @@ public class GAEApplicationServlet extends ApplicationServlet {
     }
 
     private static final Logger getLogger() {
-        return Logger.getLogger(GAEApplicationServlet.class.getName());
+        return Logger.getLogger(GAEVaadinServlet.class.getName());
     }
 }
diff --git a/server/src/com/vaadin/server/ServletApplicationContext.java b/server/src/com/vaadin/server/ServletApplicationContext.java
index 639ff117d1..a38c523254 100644
--- a/server/src/com/vaadin/server/ServletApplicationContext.java
+++ b/server/src/com/vaadin/server/ServletApplicationContext.java
@@ -123,7 +123,7 @@ public class ServletApplicationContext extends ApplicationContext {
      */
     @Override
     public File getBaseDirectory() {
-        final String realPath = ApplicationServlet.getResourcePath(
+        final String realPath = VaadinServlet.getResourcePath(
                 session.getServletContext(), "/");
         if (realPath == null) {
             return null;
@@ -175,7 +175,7 @@ public class ServletApplicationContext extends ApplicationContext {
      * @return CommunicationManager
      */
     public CommunicationManager getApplicationManager(Application application,
-            AbstractApplicationServlet servlet) {
+            VaadinServlet servlet) {
         CommunicationManager mgr = (CommunicationManager) applicationToAjaxAppMgrMap
                 .get(application);
 
diff --git a/server/src/com/vaadin/server/SystemError.java b/server/src/com/vaadin/server/SystemError.java
index 5d1426e87c..aa9ffcaf52 100644
--- a/server/src/com/vaadin/server/SystemError.java
+++ b/server/src/com/vaadin/server/SystemError.java
@@ -80,8 +80,7 @@ public class SystemError extends AbstractErrorMessage {
         StringBuilder sb = new StringBuilder();
         if (getMessage() != null) {
             sb.append("<h2>");
-            sb.append(AbstractApplicationServlet
-                    .safeEscapeForHtml(getMessage()));
+            sb.append(VaadinServlet.safeEscapeForHtml(getMessage()));
             sb.append("</h2>");
         }
         return sb.toString();
diff --git a/server/src/com/vaadin/server/AbstractApplicationServlet.java b/server/src/com/vaadin/server/VaadinServlet.java
index 8b3103b794..0766d46e93 100644
--- a/server/src/com/vaadin/server/AbstractApplicationServlet.java
+++ b/server/src/com/vaadin/server/VaadinServlet.java
@@ -47,31 +47,18 @@ import javax.servlet.http.HttpSession;
 import com.vaadin.Application;
 import com.vaadin.Application.ApplicationStartEvent;
 import com.vaadin.server.AbstractCommunicationManager.Callback;
+import com.vaadin.server.ServletPortletHelper.ApplicationClassException;
 import com.vaadin.shared.ApplicationConstants;
 import com.vaadin.ui.UI;
 
-/**
- * Abstract implementation of the ApplicationServlet which handles all
- * communication between the client and the server.
- * 
- * It is possible to extend this class to provide own functionality but in most
- * cases this is unnecessary.
- * 
- * 
- * @author Vaadin Ltd.
- * @since 6.0
- */
-
 @SuppressWarnings("serial")
-public abstract class AbstractApplicationServlet extends HttpServlet implements
-        Constants {
+public class VaadinServlet extends HttpServlet implements Constants {
 
     private static class AbstractApplicationServletWrapper implements Callback {
 
-        private final AbstractApplicationServlet servlet;
+        private final VaadinServlet servlet;
 
-        public AbstractApplicationServletWrapper(
-                AbstractApplicationServlet servlet) {
+        public AbstractApplicationServletWrapper(VaadinServlet servlet) {
             this.servlet = servlet;
         }
 
@@ -136,21 +123,21 @@ public abstract class AbstractApplicationServlet extends HttpServlet implements
             public String getStaticFileLocation(WrappedRequest request) {
                 HttpServletRequest servletRequest = WrappedHttpServletRequest
                         .cast(request);
-                return AbstractApplicationServlet.this
+                return VaadinServlet.this
                         .getStaticFilesLocation(servletRequest);
             }
 
             @Override
             public String getConfiguredWidgetset(WrappedRequest request) {
                 return getApplicationOrSystemProperty(
-                        AbstractApplicationServlet.PARAMETER_WIDGETSET,
-                        AbstractApplicationServlet.DEFAULT_WIDGETSET);
+                        VaadinServlet.PARAMETER_WIDGETSET,
+                        VaadinServlet.DEFAULT_WIDGETSET);
             }
 
             @Override
             public String getConfiguredTheme(WrappedRequest request) {
                 // Use the default
-                return AbstractApplicationServlet.getDefaultTheme();
+                return VaadinServlet.getDefaultTheme();
             }
 
             @Override
@@ -165,7 +152,7 @@ public abstract class AbstractApplicationServlet extends HttpServlet implements
 
             @Override
             public SystemMessages getSystemMessages() {
-                return AbstractApplicationServlet.this.getSystemMessages();
+                return VaadinServlet.this.getSystemMessages();
             }
         };
 
@@ -845,8 +832,26 @@ public abstract class AbstractApplicationServlet extends HttpServlet implements
      * @return A new Application instance.
      * @throws ServletException
      */
-    protected abstract Application getNewApplication(HttpServletRequest request)
-            throws ServletException;
+    protected Application getNewApplication(HttpServletRequest request)
+            throws ServletException {
+
+        // Creates a new application instance
+        try {
+            Class<? extends Application> applicationClass = ServletPortletHelper
+                    .getApplicationClass(getDeploymentConfiguration());
+
+            final Application application = applicationClass.newInstance();
+            application.addUIProvider(new DefaultUIProvider());
+
+            return application;
+        } catch (final IllegalAccessException e) {
+            throw new ServletException("getNewApplication failed", e);
+        } catch (final InstantiationException e) {
+            throw new ServletException("getNewApplication failed", e);
+        } catch (ApplicationClassException e) {
+            throw new ServletException("getNewApplication failed", e);
+        }
+    }
 
     /**
      * Starts the application if it is not already running.
@@ -858,7 +863,8 @@ public abstract class AbstractApplicationServlet extends HttpServlet implements
      * @throws MalformedURLException
      */
     private void startApplication(HttpServletRequest request,
-            Application application, ServletApplicationContext webApplicationContext)
+            Application application,
+            ServletApplicationContext webApplicationContext)
             throws ServletException, MalformedURLException {
 
         if (!application.isRunning()) {
@@ -1471,7 +1477,8 @@ public abstract class AbstractApplicationServlet extends HttpServlet implements
      *            the HTTP session.
      * @return the application context for HttpSession.
      */
-    protected ServletApplicationContext getApplicationContext(HttpSession session) {
+    protected ServletApplicationContext getApplicationContext(
+            HttpSession session) {
         /*
          * TODO the ApplicationContext.getApplicationContext() should be removed
          * and logic moved here. Now overriding context type is possible, but
@@ -1501,10 +1508,10 @@ public abstract class AbstractApplicationServlet extends HttpServlet implements
      * 
      * @deprecated Instead of overriding this method, override
      *             {@link ServletApplicationContext} implementation via
-     *             {@link AbstractApplicationServlet#getApplicationContext(HttpSession)}
+     *             {@link VaadinServlet#getApplicationContext(HttpSession)}
      *             method and in that customized implementation return your
      *             CommunicationManager in
-     *             {@link ServletApplicationContext#getApplicationManager(Application, AbstractApplicationServlet)}
+     *             {@link ServletApplicationContext#getApplicationManager(Application, VaadinServlet)}
      *             method.
      * 
      * @param application
@@ -1552,6 +1559,6 @@ public abstract class AbstractApplicationServlet extends HttpServlet implements
     }
 
     private static final Logger getLogger() {
-        return Logger.getLogger(AbstractApplicationServlet.class.getName());
+        return Logger.getLogger(VaadinServlet.class.getName());
     }
 }
diff --git a/server/src/com/vaadin/server/WebBrowser.java b/server/src/com/vaadin/server/WebBrowser.java
index 92090da14a..96cab99e40 100644
--- a/server/src/com/vaadin/server/WebBrowser.java
+++ b/server/src/com/vaadin/server/WebBrowser.java
@@ -335,9 +335,8 @@ public class WebBrowser {
     }
 
     /**
-     * For internal use by AbstractApplicationServlet/AbstractApplicationPortlet
-     * only. Updates all properties in the class according to the given
-     * information.
+     * For internal use by VaadinServlet/VaadinPortlet only. Updates all
+     * properties in the class according to the given information.
      * 
      * @param sw
      *            Screen width
@@ -406,9 +405,8 @@ public class WebBrowser {
     }
 
     /**
-     * For internal use by AbstractApplicationServlet/AbstractApplicationPortlet
-     * only. Updates all properties in the class according to the given
-     * information.
+     * For internal use by VaadinServlet/VaadinPortlet only. Updates all
+     * properties in the class according to the given information.
      * 
      * @param request
      *            the wrapped request to read the information from
diff --git a/server/src/com/vaadin/ui/UI.java b/server/src/com/vaadin/ui/UI.java
index d1ccaacde3..0f914d3947 100644
--- a/server/src/com/vaadin/ui/UI.java
+++ b/server/src/com/vaadin/ui/UI.java
@@ -33,7 +33,6 @@ import com.vaadin.event.Action.Handler;
 import com.vaadin.event.ActionManager;
 import com.vaadin.event.MouseEvents.ClickEvent;
 import com.vaadin.event.MouseEvents.ClickListener;
-import com.vaadin.server.AbstractApplicationServlet;
 import com.vaadin.server.LegacyComponent;
 import com.vaadin.server.Page;
 import com.vaadin.server.Page.BrowserWindowResizeEvent;
@@ -41,6 +40,7 @@ import com.vaadin.server.Page.BrowserWindowResizeListener;
 import com.vaadin.server.PaintException;
 import com.vaadin.server.PaintTarget;
 import com.vaadin.server.Resource;
+import com.vaadin.server.VaadinServlet;
 import com.vaadin.server.WrappedRequest;
 import com.vaadin.server.WrappedRequest.BrowserDetails;
 import com.vaadin.shared.EventId;
@@ -63,7 +63,7 @@ import com.vaadin.tools.ReflectTools;
  * </p>
  * <p>
  * When a new UI instance is needed, typically because the user opens a URL in a
- * browser window which points to {@link AbstractApplicationServlet},
+ * browser window which points to {@link VaadinServlet},
  * {@link Application#getUIForRequest(WrappedRequest)} is invoked to get a UI.
  * That method does by default create a UI according to the
  * {@value Application#UI_PARAMETER} parameter from web.xml.