No longer get/setApplicationContext(), now get/setApplicationAttribute().

git-svn-id: https://samskivert.googlecode.com/svn/trunk@540 6335cc39-0255-0410-8fd6-9bcaacd3b74c

projects/samskivert/src/java/com/samskivert/velocity/Application.java

@@ -1,5 +1,5 @@
 //
-// $Id: Application.java,v 1.7 2001/11/06 20:55:51 mdb Exp $
+// $Id: Application.java,v 1.8 2002/01/24 06:32:38 mdb Exp $
 //
 // samskivert library - useful routines for java programs
 // Copyright (C) 2001 Michael Bayne
@@ -23,6 +23,8 @@ package com.samskivert.velocity;
 import javax.servlet.ServletConfig;
 import javax.servlet.ServletContext;
 
+import org.apache.velocity.app.Velocity;
+
 import com.samskivert.Log;
 import com.samskivert.servlet.IndiscriminateSiteIdentifier;
 import com.samskivert.servlet.MessageManager;
@@ -40,6 +42,14 @@ import com.samskivert.util.StringUtil;
  */
 public class Application
 {
+    /**
+     * An initialized application automatically registers itself as a
+     * Velocity application attribute so that it can be retrieved by
+     * Velocity plugins using
+     * <code>getApplicationAttribute(VELOCITY_ATTR_KEY)</code>.
+     */
+    public static final String VELOCITY_ATTR_KEY = "!application!";
+
     /**
      * Performs initializations common to all applications. Applications
      * should override {@link #willInit} to perform initializations that
@@ -63,6 +73,10 @@ public class Application
         // keep this around for later
         _context = context;
 
+        // stick ourselves into an application attribute so that we can be
+        // accessed by Velocity plugins
+        Velocity.setApplicationAttribute(VELOCITY_ATTR_KEY, this);
+
         // let the derived application do pre-init stuff
         willInit(config);
 

projects/samskivert/src/java/com/samskivert/velocity/DispatcherServlet.java

@@ -1,5 +1,5 @@
 //
-// $Id: DispatcherServlet.java,v 1.13 2001/11/20 21:33:03 mdb Exp $
+// $Id: DispatcherServlet.java,v 1.14 2002/01/24 06:32:38 mdb Exp $
 //
 // samskivert library - useful routines for java programs
 // Copyright (C) 2001 Michael Bayne
@@ -150,10 +150,6 @@ import com.samskivert.util.StringUtil;
  */
 public class DispatcherServlet extends VelocityServlet
 {
-    /**
-     * We load our velocity properties from the classpath rather than from
-     * a file.
-     */
     /**
      * Initialize ourselves and our application.
      */
@@ -180,13 +176,14 @@ public class DispatcherServlet extends VelocityServlet
             Log.logStackTrace(t);
         }
 
-        // stick the application into the Velocity application context
-        Velocity.setApplicationContext(_app);
-
         // now let velocity initialize itself
         super.initVelocity(config);
     }
 
+    /**
+     * We load our velocity properties from the classpath rather than from
+     * a file.
+     */
     protected Properties loadConfiguration (ServletConfig config)
         throws IOException
     {

projects/samskivert/src/java/com/samskivert/velocity/ServletContextLogger.java

@@ -1,5 +1,5 @@
 //
-// $Id: ServletContextLogger.java,v 1.3 2001/11/20 21:32:34 mdb Exp $
+// $Id: ServletContextLogger.java,v 1.4 2002/01/24 06:32:38 mdb Exp $
 //
 // samskivert library - useful routines for java programs
 // Copyright (C) 2001 Michael Bayne
@@ -54,22 +54,27 @@ public class ServletContextLogger implements LogSystem
         // if we weren't constructed with a servlet context, try to obtain
         // one via the application context
         if (_sctx == null) {
-            Object context = rsvc.getApplicationContext();
-            if (context != null) {
-                if (context instanceof Application) {
-                    _sctx = ((Application)context).getServletContext();
-                } else if (context instanceof ServletContext) {
-                    _sctx = (ServletContext)context;
-                }
+            // first look for the servlet context directly
+            _sctx = (ServletContext)
+                rsvc.getApplicationAttribute("ServletContext");
+        }
+
+        // if that didn't work, look for an application
+        if (_sctx == null) {
+            // first look for an application
+            Application app = (Application)rsvc.getApplicationAttribute(
+                Application.VELOCITY_ATTR_KEY);
+            if (app != null) {
+                _sctx = app.getServletContext();
             }
         }
 
         // if we still don't have one, complain
         if (_sctx == null) {
             rsvc.warn("ServletContextLogger: servlet context was not " +
-                      "supplied as application context. A user of the " +
-                      "servlet context logger must call " +
-                      "Velocity.setApplicationContext(getServletContext()).");
+                      "supplied. A user of the servlet context logger must " +
+                      "call Velocity.setApplicationAttribute(" +
+                      "\"ServletContext\", getServletContext()).");
         }
     }
 

projects/samskivert/src/java/com/samskivert/velocity/ServletContextResourceLoader.java

@@ -1,5 +1,5 @@
 //
-// $Id: ServletContextResourceLoader.java,v 1.3 2001/11/06 04:49:32 mdb Exp $
+// $Id: ServletContextResourceLoader.java,v 1.4 2002/01/24 06:32:38 mdb Exp $
 //
 // samskivert library - useful routines for java programs
 // Copyright (C) 2001 Michael Bayne
@@ -67,13 +67,13 @@ public class ServletContextResourceLoader extends ResourceLoader
 
         // the web framework was kind enough to slip this into the runtime
         // instance when it started up
-        _sctx = (ServletContext)rsvc.getApplicationContext();
+        _sctx = (ServletContext)rsvc.getApplicationAttribute("ServletContext");
         if (_sctx == null) {
             rsvc.warn("ServletContextResourceLoader: servlet context " +
                       "was not supplied as application context. A " +
                       "user of the servlet context resource loader " +
-                      "must call Velocity.setApplicationContext(" +
-                      "getServletContext()).");
+                      "must call Velocity.setApplicationAttribute(" +
+                      "\"ServletContext\", getServletContext()).");
         }
 
         rsvc.info("ServletContextResourceLoader : initialization complete.");

projects/samskivert/src/java/com/samskivert/velocity/SiteResourceManager.java

@@ -1,5 +1,5 @@
 //
-// $Id: SiteResourceManager.java,v 1.4 2001/11/06 20:16:47 mdb Exp $
+// $Id: SiteResourceManager.java,v 1.5 2002/01/24 06:32:38 mdb Exp $
 //
 // samskivert library - useful routines for java programs
 // Copyright (C) 2001 Michael Bayne
@@ -55,13 +55,12 @@ public class SiteResourceManager extends ResourceManagerImpl
 
         // the web framework was kind enough to slip this into the runtime
         // instance when it started up
-        Application app = (Application)rsvc.getApplicationContext();
+        Application app = (Application)rsvc.getApplicationAttribute(
+            Application.VELOCITY_ATTR_KEY);
         if (app == null) {
-            rsvc.warn("SiteResourceManager: Application reference " +
-                      "was not supplied as application context. A " +
-                      "user of the site resource manager must supply " +
-                      "a reference to the Application instance via " +
-                      "Velocity.setApplicationContext().");
+            rsvc.warn("SiteResourceManager: No application was initialized. " +
+                      "A user of the site resource manager must ensure that " +
+                      "an application is instantiated and initialized.");
         }
 
         // get handles on the good stuff