NIFI-2302: - Showing a message on the history page when in a cluster to indicate that only the actions from the current node are displayed.

This closes #740

Signed-off-by: jpercivall <joepercivall@yahoo.com>

nifi-nar-bundles/nifi-framework-bundle/nifi-framework/nifi-web/nifi-web-ui/src/main/webapp/WEB-INF/partials/history/history-content.jsp

@@ -18,12 +18,18 @@
 <div id="history">
     <div id="history-header-text">NiFi History</div>
     <div id="history-filter-container">
-        <div id="history-filter-overview">
+        <div id="cluster-history-message" class="hidden">
-            A filter has been applied.&nbsp;
+            Viewing history for the current node only. Browse to another node to view its history.
-            <span id="clear-history-filter" class="link">Clear filter</span>
         </div>
-        <button id="history-filter-button" title="Filter History" class="fa fa-filter"></button>
+        <div style="float: right">
-        <button id="history-purge-button" title="Purge History" class="fa fa-eraser hidden"></button>
+            <div id="history-filter-overview">
+                A filter has been applied.&nbsp;
+                <span id="clear-history-filter" class="link">Clear filter</span>
+            </div>
+            <button id="history-filter-button" title="Filter History" class="fa fa-filter"></button>
+            <button id="history-purge-button" title="Purge History" class="fa fa-eraser hidden"></button>
+        </div>
+        <div class="clear"></div>
     </div>
     <div id="history-table"></div>
 </div>

nifi-nar-bundles/nifi-framework-bundle/nifi-framework/nifi-web/nifi-web-ui/src/main/webapp/css/history.css

@@ -63,7 +63,16 @@
 #history-filter-container {
     position: absolute;
     right: 0px;
+    left: 0px;
     top: 15px;
+    font-family: Roboto;
+    font-size: 13px;
+    font-weight: normal;
+}
+
+#cluster-history-message {
+    float: left;
+    margin-top: 30px;
 }
 
 #history-filter-button {
@@ -73,10 +82,7 @@
 
 #history-filter-overview {
     visibility: hidden;
-    font-family: Roboto;
-    font-size: 13px;
     margin-bottom: 5px;
-    font-weight: normal;
 }
 
 #history-purge-button {

nifi-nar-bundles/nifi-framework-bundle/nifi-framework/nifi-web/nifi-web-ui/src/main/webapp/js/nf/history/nf-history.js

@@ -31,7 +31,8 @@ nf.History = (function () {
         urls: {
             banners: '../nifi-api/flow/banners',
             about: '../nifi-api/flow/about',
-            currentUser: '../nifi-api/flow/current-user'
+            currentUser: '../nifi-api/flow/current-user',
+            clusterSummary: '../nifi-api/flow/cluster/summary'
         }
     };
 
@@ -48,6 +49,26 @@ nf.History = (function () {
         }).fail(nf.Common.handleAjaxError);
     };
 
+    /**
+     * Loads the flow configuration and updated the cluster state.
+     *
+     * @returns xhr
+     */
+    var loadClusterSummary = function () {
+        return $.ajax({
+            type: 'GET',
+            url: config.urls.clusterSummary,
+            dataType: 'json'
+        }).done(function (response) {
+            var clusterSummary = response.clusterSummary;
+
+            // if clustered, show message to indicate location of actions
+            if (clusterSummary.clustered === true) {
+                $('#cluster-history-message').show();
+            }
+        });
+    };
+
     /**
      * Initializes the history page.
      */
@@ -116,6 +137,8 @@ nf.History = (function () {
             
             // load the current user
             loadCurrentUser().done(function () {
+                loadClusterSummary();
+
                 // create the history table
                 nf.HistoryTable.init();