[MSITE-862] log Doxia source when rendering with site:run
diff --git a/src/main/java/org/apache/maven/plugins/site/render/ReportDocumentRenderer.java b/src/main/java/org/apache/maven/plugins/site/render/ReportDocumentRenderer.java
index e59a023..45cf613 100644
--- a/src/main/java/org/apache/maven/plugins/site/render/ReportDocumentRenderer.java
+++ b/src/main/java/org/apache/maven/plugins/site/render/ReportDocumentRenderer.java
@@ -374,4 +374,9 @@
     {
         return report.isExternalReport();
     }
+
+    public String getReportMojoInfo()
+    {
+        return reportMojoInfo;
+    }
 }
diff --git a/src/main/java/org/apache/maven/plugins/site/run/DoxiaFilter.java b/src/main/java/org/apache/maven/plugins/site/run/DoxiaFilter.java
index eab33ce..7c69896 100644
--- a/src/main/java/org/apache/maven/plugins/site/run/DoxiaFilter.java
+++ b/src/main/java/org/apache/maven/plugins/site/run/DoxiaFilter.java
@@ -20,11 +20,14 @@
  */
 
 import org.apache.maven.doxia.siterenderer.DocumentRenderer;
+import org.apache.maven.doxia.siterenderer.DoxiaDocumentRenderer;
 import org.apache.maven.doxia.siterenderer.Renderer;
 import org.apache.maven.doxia.siterenderer.RendererException;
 import org.apache.maven.doxia.siterenderer.SiteRenderingContext;
 import org.apache.maven.plugins.site.render.ReportDocumentRenderer;
 
+import static org.apache.maven.shared.utils.logging.MessageUtils.buffer;
+
 import javax.servlet.Filter;
 import javax.servlet.FilterChain;
 import javax.servlet.FilterConfig;
@@ -53,6 +56,8 @@
 
     public static final String LOCALES_LIST_KEY = "localesList";
 
+    private ServletContext servletContext;
+
     private Renderer siteRenderer;
 
     private Map<String, DoxiaBean> i18nDoxiaContexts;
@@ -65,7 +70,7 @@
     public void init( FilterConfig filterConfig )
         throws ServletException
     {
-        ServletContext servletContext = filterConfig.getServletContext();
+        servletContext = filterConfig.getServletContext();
 
         siteRenderer = (Renderer) servletContext.getAttribute( SITE_RENDERER_KEY );
 
@@ -141,6 +146,7 @@
             try
             {
                 DocumentRenderer renderer = documents.get( path );
+                logDocumentRenderer( path, renderer );
                 renderer.renderDocument( servletResponse.getWriter(), siteRenderer, context );
 
                 if ( renderer instanceof ReportDocumentRenderer )
@@ -176,6 +182,7 @@
                 if ( locateDocuments.containsKey( path ) )
                 {
                     DocumentRenderer renderer = locateDocuments.get( path );
+                    logDocumentRenderer( path, renderer );
                     renderer.renderDocument( servletResponse.getWriter(), siteRenderer, generatedSiteContext );
 
                     return;
@@ -188,6 +195,28 @@
         }
 
         filterChain.doFilter( servletRequest, servletResponse );
+
+        servletContext.log( path );
+    }
+
+    private void logDocumentRenderer( String path, DocumentRenderer renderer )
+    {
+        String source;
+        if ( renderer instanceof DoxiaDocumentRenderer )
+        {
+            DoxiaDocumentRenderer doxiaDocumentRenderer = (DoxiaDocumentRenderer) renderer;
+            source = doxiaDocumentRenderer.getRenderingContext().getInputName();
+        }
+        else if ( renderer instanceof ReportDocumentRenderer )
+        {
+            ReportDocumentRenderer reportDocumentRenderer = (ReportDocumentRenderer) renderer;
+            source = reportDocumentRenderer.getReportMojoInfo();
+        }
+        else
+        {
+            source = renderer.getClass().getName();
+        }
+        servletContext.log( path + " -> " + buffer().strong( source ) );
     }
 
     /**