SOLR-4264: Missing Error-Screen on UI's Cloud-Page

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1429254 13f79535-47bb-0310-9956-ffa450edef68

solr/CHANGES.txt

@@ -218,6 +218,8 @@ Optimizations
 * SOLR-4262: Replication Icon on Dashboard does not reflect Master-/Slave-
   State (steffkes)
 
+* SOLR-4264: Missing Error-Screen on UI's Cloud-Page (steffkes)
+
 Bug Fixes
 ----------------------
 

solr/webapp/web/css/styles/cloud.css

@@ -18,7 +18,7 @@
 {
   background-color: #f00;
   background-image: url( ../../img/ico/construction.png );
-  background-position: 10px 50%;
+  background-position: 10px 12px;
   color: #fff;
   font-weight: bold;
   margin-bottom: 20px;
@@ -26,6 +26,13 @@
   padding-left: 35px;
 }
 
+#content #cloud #error .msg
+{
+  font-style: italic;
+  font-weight: normal;
+  margin-top: 10px;
+}
+
 #content #cloud #debug
 {
   background-color: #fff;

solr/webapp/web/js/require.js

@@ -9359,7 +9359,9 @@ jQuery.extend({
 					}
 					done( 0, statusText );
 					return this;
-				}
+				},
+
+				url : s.url
 			};
 
 		// Callback for when everything is done

solr/webapp/web/js/scripts/cloud.js

@@ -15,6 +15,27 @@
  limitations under the License.
 */
 
+var zk_error = function zk_error( xhr, text_status, error_thrown )
+{
+  var zk = null;
+  try
+  {
+    eval( 'zk = ' + xhr.responseText + ';' );
+  }
+  catch( e ) {}
+
+  var message = '<p class="txt">Loading of "<code>' + xhr.url + '</code>" '
+              + 'failed (HTTP-Status <code>' + xhr.status + '</code>)</p>' + "\n";
+
+  if( zk.error )
+  {
+    message += '<p class="msg">"' + zk.error.esc() + '"</p>' + "\n";
+  }
+  
+  this.closest( '#cloud' )
+    .html( '<div class="block" id="error">' + message + '</div>' );
+};
+
 var init_debug = function( cloud_element )
 {
   var debug_element = $( '#debug', cloud_element );
@@ -633,19 +654,7 @@ var init_tree = function( tree_element )
             }
           );
       },
-      error : function( xhr, text_status, error_thrown )
+      error : zk_error,
-      {
-        var message = 'Loading of <code>' + app.config.zookeeper_path + '</code> failed with "' + text_status + '" '
-                    + '(<code>' + error_thrown.message + '</code>)';
-
-        if( 200 !== xhr.status )
-        {
-          message = 'Loading of <code>' + app.config.zookeeper_path + '</code> failed with HTTP-Status ' + xhr.status + ' ';
-        }
-
-        this
-          .html( '<div class="block" id="error">' + message + '</div>' );
-      },
       complete : function( xhr, text_status )
       {
       }
@@ -710,8 +719,20 @@ sammy.get
             }
           );
 
-        $( 'a[href="' + context.path + '"]', navigation_element )
+        $.ajax
-          .trigger( 'activate' );
+        (
+          {
+            url : app.config.solr_path + '/zookeeper?wt=json',
+            dataType : 'json',
+            context : cloud_element,
+            success : function( response, text_status, xhr )
+            {
+              $( 'a[href="' + context.path + '"]', navigation_element )
+                .trigger( 'activate' );
+            },
+            error : zk_error
+          }
+        );
         
       }
     );