implemented very simple ad rotation support, good enough for our rotating

quote banners - also included quote banners (20 from Webb, 4 new)

src/com/silverwrist/venice/servlets/VeniceServlet.java

@@ -608,7 +608,7 @@ public abstract class VeniceServlet extends HttpServlet
 	Variables.flushCookies(request,response);
 	if (content!=null)
 	{ // display the content!
-	  BaseJSPData base = new BaseJSPData(getMyLocation(request,engine,user,rdat),content);
+	  BaseJSPData base = new BaseJSPData(engine,user,getMyLocation(request,engine,user,rdat),content);
 	  base.transfer(ctxt,rdat);
 
 	} // end if
@@ -663,7 +663,7 @@ public abstract class VeniceServlet extends HttpServlet
 	  catch (ServletMultipartException e)
 	  { // this is an error message we need to generate and just bail out on
 	    logger.error("ServletMultipartException caught in doVenicePost!",e);
-	    BaseJSPData base = new BaseJSPData(getMyLocation(request,engine,user,rdat),
+	    BaseJSPData base = new BaseJSPData(engine,user,getMyLocation(request,engine,user,rdat),
 					       new ErrorBox(null,"Internal Error: " + e.getMessage(),null));
 	    base.transfer(ctxt,rdat);
 	    return;
@@ -712,7 +712,7 @@ public abstract class VeniceServlet extends HttpServlet
 	Variables.flushCookies(request,response);
 	if (content!=null)
 	{ // display the content!
-	  BaseJSPData base = new BaseJSPData(getMyLocation(request,engine,user,rdat),content);
+	  BaseJSPData base = new BaseJSPData(engine,user,getMyLocation(request,engine,user,rdat),content);
 	  base.transfer(ctxt,rdat);
 
 	} // end if

src/com/silverwrist/venice/servlets/format/BaseJSPData.java

@@ -22,6 +22,7 @@ import java.io.IOException;
 import javax.servlet.*;
 import javax.servlet.http.*;
 import org.apache.log4j.*;
+import com.silverwrist.venice.core.*;
 import com.silverwrist.venice.servlets.Variables;
 import com.silverwrist.venice.servlets.format.menus.LeftMenu;
 
@@ -40,6 +41,8 @@ public class BaseJSPData
    *--------------------------------------------------------------------------------
    */
 
+  private VeniceEngine engine;            // the Venice engine
+  private UserContext user;               // user context
   private String location;                // location string to use for this page
   private VeniceContent content;          // the actual content
   private boolean login_links = true;     // show login links up top?
@@ -49,8 +52,10 @@ public class BaseJSPData
    *--------------------------------------------------------------------------------
    */
 
-  public BaseJSPData(String location, VeniceContent content)
+  public BaseJSPData(VeniceEngine engine, UserContext user, String location, VeniceContent content)
   {
+    this.engine = engine;
+    this.user = user;
     this.location = location;
     this.content = content;
 
@@ -116,6 +121,47 @@ public class BaseJSPData
 
   } // end transfer
 
+  public void renderBannerAd(Writer out, RenderData rdat) throws IOException
+  {
+    Advertisement advert;
+    if (user.isLoggedIn())
+      advert = user.selectAd();
+    else
+      advert = engine.selectAd();
+    if (advert==null)
+    { // no advert found - bail out now!
+      out.write(" ");
+      return;
+
+    } // end if
+
+    String full_image_path;
+    if (advert.getImagePathStyle()==Advertisement.CONTEXT_RELATIVE)
+    { // return the full image path
+      full_image_path = rdat.getContextRelativePath(advert.getImagePath());
+
+    } // end if
+    else
+    { // can't render the ad - just punt
+      out.write(" ");
+      return;
+
+    } // end else
+
+    // Write the banner ad.
+    String url = advert.getLinkURL();
+    String capt = advert.getCaption();
+    if (url!=null)
+      out.write("<A HREF=\"" + url + "\">");
+    out.write("<IMG SRC=\"" + full_image_path + "\" ALT=\"");
+    if (capt!=null)
+      out.write(capt);
+    out.write("\" ALIGN=RIGHT WIDTH=468 HEIGHT=60 HSPACE=2 VSPACE=2 BORDER=0>");
+    if (url!=null)
+      out.write("</A>");
+
+  } // end renderBannerAd
+
   public void renderMenu(HttpSession session, Writer out, RenderData rdat) throws IOException
   {
     ComponentRender menu = Variables.getMenu(session);

src/com/silverwrist/venice/servlets/format/RenderData.java

@@ -190,6 +190,15 @@ public class RenderData
 
   } // end getStaticIncludePath
 
+  public String getContextRelativePath(String name)
+  {
+    StringBuffer buf = new StringBuffer(request.getContextPath());
+    if (name.charAt(0)!='/')
+      buf.append('/');
+    return buf.append(name).toString();
+
+  } // end getContextRelativePath
+
   public String getStdFontTag(String color, int size)
   {
     return rconf.getStdFontTag(color,size);