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Subject [GitHub] [nifi] adarmiento commented on a change in pull request #3700: NIFI-6638: Empty multiple queues at once at different flow levels
Date Mon, 09 Sep 2019 13:30:40 GMT
adarmiento commented on a change in pull request #3700: NIFI-6638: Empty multiple queues at
once at different flow levels
URL: https://github.com/apache/nifi/pull/3700#discussion_r322234640
 
 

 ##########
 File path: nifi-nar-bundles/nifi-framework-bundle/nifi-framework/nifi-web/nifi-web-ui/src/main/webapp/js/nf/canvas/nf-actions.js
 ##########
 @@ -212,6 +212,417 @@
             }).size() > 0;
     };
 
+    /**
+     * Empty all the queues inside the array of connections.
+     *
+     * @Param {string} actionName
+     * @param {Array} connections
+     * @Param {Array} errors
+     *
+     */
+    var emptyQueues = function (actionName, connections, errors) {
+        var cancelled = false;
+        var finished = false;
+        var progressBarRefreshingDelay = 100; //millis
+
+        var dropRequests = [];
+        var dropRequestTimers = [];
+        var progressBarRefreshTimer = null;
+        var singleEmptyQueuePromises = [];
+
+        var createFailedResponse = function (xhr, status, error) {
+            return {
+                success: false,
+                xhr: xhr,
+                status: status,
+                error: error
+            };
+        };
+
+        var createSuccessResponse = function () {
+            return {
+                success: true
+            };
+        };
+
+        // set the progress bar to a certain percentage
+        var setProgressBar = function (percentComplete) {
+            if($("#drop-request-percent-complete .progress-label").length) {
+                //set the request status text
+                $('#drop-request-status-message').text('');
+
+                //set progress bar
+                $('#drop-request-percent-complete .md-hue-2 .md-container.md-mode-determinate
.md-bar.md-bar2:first')
+                    .attr('style','transform: translateX(' + ((percentComplete - 100) / 2)
+ '%) scale(' + (percentComplete * 0.01) + ', 1);');
+
+                //set percentage
+                $("#drop-request-percent-complete .progress-label:first").text(percentComplete.toFixed(2)
+ '%');
+            }
+            else {
+                var progressBar = $('#drop-request-percent-complete');
+
+                (nfNgBridge.injector.get('$compile')($('<md-progress-linear ng-cloak ng-value="'
+ percentComplete + '" class="md-hue-2" md-mode="determinate" aria-label="Drop request percent
complete"></md-progress-linear>'))(nfNgBridge.rootScope)).appendTo(progressBar);
+
+                progressBar.append($('<div class="progress-label"></div>').text(percentComplete
+ '%'));
+            }
+        };
+
+        // process the drop request
+        var refreshProgressBar = function () {
+            // update the completed percentage
+            var percentCompleted = 0;
+            var droppedFlowfiles = 0;
+            var totalFlowfilesToDrop = 0;
+
+            dropRequests.forEach(function (dropRequest) {
+                if( nfCommon.isDefinedAndNotNull(dropRequest) &&
+                    nfCommon.isDefinedAndNotNull(dropRequest.droppedCount) &&
+                    nfCommon.isDefinedAndNotNull(dropRequest.originalCount) ) {
+                    droppedFlowfiles += dropRequest.droppedCount;
+                    totalFlowfilesToDrop += dropRequest.originalCount;
+                }
+            });
+
+            if(totalFlowfilesToDrop !== 0) {
 
 Review comment:
   ```suggestion
               if (totalFlowfilesToDrop !== 0) {
   ```

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