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Posted to commits@qpid.apache.org by ea...@apache.org on 2018/05/17 20:55:09 UTC

[2/4] qpid-dispatch git commit: DISPATCH-1002 Added optional message flow animation to topology page

http://git-wip-us.apache.org/repos/asf/qpid-dispatch/blob/61df4890/console/stand-alone/plugin/js/topology/qdrTopology.js
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diff --git a/console/stand-alone/plugin/js/topology/qdrTopology.js b/console/stand-alone/plugin/js/topology/qdrTopology.js
new file mode 100644
index 0000000..82af88a
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+++ b/console/stand-alone/plugin/js/topology/qdrTopology.js
@@ -0,0 +1,2125 @@
+/*
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements.  See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership.  The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied.  See the License for the
+specific language governing permissions and limitations
+under the License.
+*/
+'use strict';
+
+/* global angular d3 separateAddresses Traffic */
+/**
+ * @module QDR
+ */
+var QDR = (function(QDR) {
+
+  QDR.module.controller('QDR.TopologyFormController', function($scope, $timeout) {
+
+    $scope.attributes = [];
+    $scope.attributesConnections = [];
+
+    $scope.form = 'Router';
+    $scope.$on('showEntityForm', function(event, args) {
+      let attributes = args.attributes;
+      // capitalize 1st letter
+      $scope.form = args.entity.charAt(0).toUpperCase() + args.entity.slice(1);
+
+      let H = '<div class="infoGrid">';
+      attributes.forEach( function (a, i) {
+        let even = (i % 2) ? 'even' : 'odd';
+        if (a.attributeName === 'Listening on')
+          even += ' listening-on';
+        H += ('<div class="'+ even +'"><span title="'+a.attributeName+'">' + a.attributeName + '</span><span title="'+a.attributeValue+'">' + a.attributeValue + '</span></div>');
+      });
+      H += '</div>';
+      $('#formInfo').html(H);
+
+      if (!$scope.$$phase) $scope.$apply();
+
+    });
+
+    $scope.panelVisible = true;  // show/hide the panel on the left
+    $scope.hideLeftPane = function () {
+      d3.select('.page-menu')
+        .style('left' , '-360px')
+        .style('z-index', '1');
+
+      d3.select('.diagram')
+        .transition().duration(300).ease('sin-in')
+        .style('margin-left', '-360px')
+        .each('end', function () {
+          $timeout(function () {$scope.panelVisible = false;});
+          let div = d3.select(this);
+          div.style('margin-left', '0');
+          div.style('padding-left', 0);
+        });
+    };
+    $scope.showLeftPane = function () {
+      d3.select('.page-menu')
+        .style('left' , '0px');
+
+      $timeout(function () {$scope.panelVisible = true;});
+      d3.select('.diagram')
+        .style('margin-left', '0px')
+        .transition().duration(300).ease('sin-out')
+        .style('margin-left', '300px')
+        .each('end', function () {
+          let div = d3.select(this);
+          div.style('margin-left', '0');
+          div.style('padding-left', '300px');
+        });
+    };
+  });
+  /**
+   * @method TopologyController
+   *
+   * Controller that handles the QDR topology page
+   */
+  QDR.module.controller('QDR.TopologyController', ['$scope', '$rootScope', 'QDRService', '$location', '$timeout', '$uibModal', '$sce',
+    function($scope, $rootScope, QDRService, $location, $timeout, $uibModal, $sce) {
+
+      const TOPOOPTIONSKEY = 'topoOptions';
+      const radius = 25;
+      const radiusNormal = 15;
+
+      //  - nodes is an array of router/client info. these are the circles
+      //  - links is an array of connections between the routers. these are the lines with arrows
+      let nodes = [];
+      let links = [];
+      let forceData = {nodes: nodes, links: links};
+
+      $scope.multiData = [];
+      $scope.quiesceState = {};
+      let dontHide = false;
+      $scope.crosshtml = $sce.trustAsHtml('');
+      $scope.legendOptions = angular.fromJson(localStorage[TOPOOPTIONSKEY]) || {showTraffic: false};
+      $scope.legend = {status: {legendOpen: true, optionsOpen: true}};
+      let traffic = new Traffic($scope, $timeout, QDRService, separateAddresses, 
+        radius, forceData, nextHop);
+
+      // the showTraaffic checkbox was just toggled (or initialized)
+      $scope.$watch('legendOptions.showTraffic', function () {
+        localStorage[TOPOOPTIONSKEY] = JSON.stringify($scope.legendOptions);
+        if ($scope.legendOptions.showTraffic) {
+          traffic.start();
+        } else {
+          traffic.stop();
+          traffic.remove();
+        }
+      });
+      // event notification that an address checkbox has changed
+      $scope.addressFilterChanged = function () {
+        traffic.updateAddresses();
+      };
+
+      // called by angular when mouse enters one of the address legends
+      $scope.enterLegend = function (address) {
+        // fade all flows that aren't for this address
+        traffic.fadeOtherAddresses(address);
+      };
+      // called when the mouse leaves one of the address legends
+      $scope.leaveLegend = function () {
+        traffic.unFadeAll();
+      };
+      // clicked on the address name. toggle the address checkbox
+      $scope.addressClick = function (address) {
+        traffic.toggleAddress(address);
+      };
+
+      $scope.quiesceConnection = function(row) {
+        let entity = row.entity;
+        let state = $scope.quiesceState[entity.connectionId].state;
+        if (state === 'enabled') {
+          // start quiescing all links
+          $scope.quiesceState[entity.connectionId].state = 'quiescing';
+        } else if (state === 'quiesced') {
+          // start reviving all links
+          $scope.quiesceState[entity.connectionId].state = 'reviving';
+        }
+        $scope.multiDetails.updateState(entity);
+        dontHide = true;
+        $scope.multiDetails.selectRow(row.rowIndex, true);
+        $scope.multiDetails.showLinksList(row);
+      };
+      $scope.quiesceDisabled = function(row) {
+        return $scope.quiesceState[row.entity.connectionId].buttonDisabled;
+      };
+      $scope.quiesceText = function(row) {
+        return $scope.quiesceState[row.entity.connectionId].buttonText;
+      };
+      $scope.quiesceClass = function(row) {
+        const stateClassMap = {
+          enabled: 'btn-primary',
+          quiescing: 'btn-warning',
+          reviving: 'btn-warning',
+          quiesced: 'btn-danger'
+        };
+        return stateClassMap[$scope.quiesceState[row.entity.connectionId].state];
+      };
+
+      // This is the grid that shows each connection when a client node that represents multiple connections is clicked
+      $scope.multiData = [];
+      $scope.multiDetails = {
+        data: 'multiData',
+        enableColumnResize: true,
+        enableHorizontalScrollbar: 0,
+        enableVerticalScrollbar: 0,
+        jqueryUIDraggable: true,
+        enablePaging: false,
+        multiSelect: false,
+        enableSelectAll: false,
+        enableSelectionBatchEvent: false,
+        enableRowHeaderSelection: false,
+        noUnselect: true,
+        onRegisterApi: function (gridApi) {
+          if (gridApi.selection) {
+            gridApi.selection.on.rowSelectionChanged($scope, function(row){
+              let detailsDiv = d3.select('#link_details');
+              let isVis = detailsDiv.style('display') === 'block';
+              if (!dontHide && isVis && $scope.connectionId === row.entity.connectionId) {
+                hideLinkDetails();
+                return;
+              }
+              dontHide = false;
+              $scope.multiDetails.showLinksList(row);
+            });
+          }
+        },
+        showLinksList: function(obj) {
+          $scope.linkData = obj.entity.linkData;
+          $scope.connectionId = obj.entity.connectionId;
+          let visibleLen = Math.min(obj.entity.linkData.length, 10);
+          //QDR.log.debug("visibleLen is " + visibleLen)
+          let left = parseInt(d3.select('#multiple_details').style('left'), 10);
+          let offset = $('#topology').offset();
+          let detailsDiv = d3.select('#link_details');
+          detailsDiv
+            .style({
+              display: 'block',
+              opacity: 1,
+              left: (left + 20) + 'px',
+              top: (mouseY - offset.top + 20 + $(document).scrollTop()) + 'px',
+              height: ((visibleLen + 1) * 30) + 40 + 'px', // +1 for the header row
+              'overflow-y': obj.entity.linkData > 10 ? 'scroll' : 'hidden'
+            });
+        },
+        updateState: function(entity) {
+          let state = $scope.quiesceState[entity.connectionId].state;
+
+          // count enabled and disabled links for this connection
+          let enabled = 0,
+            disabled = 0;
+          entity.linkData.forEach(function(link) {
+            if (link.adminStatus === 'enabled')
+              ++enabled;
+            if (link.adminStatus === 'disabled')
+              ++disabled;
+          });
+
+          let linkCount = entity.linkData.length;
+          // if state is quiescing and any links are enabled, button should say 'Quiescing' and be disabled
+          if (state === 'quiescing' && (enabled > 0)) {
+            $scope.quiesceState[entity.connectionId].buttonText = 'Quiescing';
+            $scope.quiesceState[entity.connectionId].buttonDisabled = true;
+          } else
+          // if state is enabled and all links are disabled, button should say Revive and be enabled. set state to quisced
+          // if state is quiescing and all links are disabled, button should say 'Revive' and be enabled. set state to quiesced
+          if ((state === 'quiescing' || state === 'enabled') && (disabled === linkCount)) {
+            $scope.quiesceState[entity.connectionId].buttonText = 'Revive';
+            $scope.quiesceState[entity.connectionId].buttonDisabled = false;
+            $scope.quiesceState[entity.connectionId].state = 'quiesced';
+          } else
+          // if state is reviving and any links are disabled, button should say 'Reviving' and be disabled
+          if (state === 'reviving' && (disabled > 0)) {
+            $scope.quiesceState[entity.connectionId].buttonText = 'Reviving';
+            $scope.quiesceState[entity.connectionId].buttonDisabled = true;
+          } else
+          // if state is reviving or quiesced and all links are enabled, button should say 'Quiesce' and be enabled. set state to enabled
+          if ((state === 'reviving' || state === 'quiesced') && (enabled === linkCount)) {
+            $scope.quiesceState[entity.connectionId].buttonText = 'Quiesce';
+            $scope.quiesceState[entity.connectionId].buttonDisabled = false;
+            $scope.quiesceState[entity.connectionId].state = 'enabled';
+          }
+        },
+        columnDefs: [{
+          field: 'host',
+          cellTemplate: 'titleCellTemplate.html',
+          //headerCellTemplate: 'titleHeaderCellTemplate.html',
+          displayName: 'Connection host'
+        }, {
+          field: 'user',
+          cellTemplate: 'titleCellTemplate.html',
+          //headerCellTemplate: 'titleHeaderCellTemplate.html',
+          displayName: 'User'
+        }, {
+          field: 'properties',
+          cellTemplate: 'titleCellTemplate.html',
+          //headerCellTemplate: 'titleHeaderCellTemplate.html',
+          displayName: 'Properties'
+        }
+          /*,
+                {
+                  cellClass: 'gridCellButton',
+                  cellTemplate: '<button title="{{quiesceText(row)}} the links" type="button" ng-class="quiesceClass(row)" class="btn" ng-click="$event.stopPropagation();quiesceConnection(row)" ng-disabled="quiesceDisabled(row)">{{quiesceText(row)}}</button>'
+                }*/
+        ]
+      };
+      $scope.quiesceLinkClass = function(row) {
+        const stateClassMap = {
+          enabled: 'btn-primary',
+          disabled: 'btn-danger'
+        };
+        return stateClassMap[row.entity.adminStatus];
+      };
+      $scope.quiesceLink = function(row) {
+        QDRService.management.topology.quiesceLink(row.entity.nodeId, row.entity.name)
+          .then( function (results, context) {
+            let statusCode = context.message.application_properties.statusCode;
+            if (statusCode < 200 || statusCode >= 300) {
+              QDR.Core.notification('error', context.message.statusDescription);
+              QDR.log.info('Error ' + context.message.statusDescription);
+            }
+          });
+      };
+      $scope.quiesceLinkDisabled = function(row) {
+        return (row.entity.operStatus !== 'up' && row.entity.operStatus !== 'down');
+      };
+      $scope.quiesceLinkText = function(row) {
+        return row.entity.operStatus === 'down' ? 'Revive' : 'Quiesce';
+      };
+      $scope.linkData = [];
+      $scope.linkDetails = {
+        data: 'linkData',
+        jqueryUIDraggable: true,
+        columnDefs: [{
+          field: 'adminStatus',
+          cellTemplate: 'titleCellTemplate.html',
+          headerCellTemplate: 'titleHeaderCellTemplate.html',
+          displayName: 'Admin state'
+        }, {
+          field: 'operStatus',
+          cellTemplate: 'titleCellTemplate.html',
+          headerCellTemplate: 'titleHeaderCellTemplate.html',
+          displayName: 'Oper state'
+        }, {
+          field: 'dir',
+          cellTemplate: 'titleCellTemplate.html',
+          headerCellTemplate: 'titleHeaderCellTemplate.html',
+          displayName: 'dir'
+        }, {
+          field: 'owningAddr',
+          cellTemplate: 'titleCellTemplate.html',
+          headerCellTemplate: 'titleHeaderCellTemplate.html',
+          displayName: 'Address'
+        }, {
+          field: 'deliveryCount',
+          displayName: 'Delivered',
+          headerCellTemplate: 'titleHeaderCellTemplate.html',
+          cellClass: 'grid-values'
+
+        }, {
+          field: 'uncounts',
+          displayName: 'Outstanding',
+          headerCellTemplate: 'titleHeaderCellTemplate.html',
+          cellClass: 'grid-values'
+        }
+          /*,
+                {
+                  cellClass: 'gridCellButton',
+                  cellTemplate: '<button title="{{quiesceLinkText(row)}} this link" type="button" ng-class="quiesceLinkClass(row)" class="btn" ng-click="quiesceLink(row)" ng-disabled="quiesceLinkDisabled(row)">{{quiesceLinkText(row)}}</button>'
+                }*/
+        ]
+      };
+
+      let urlPrefix = $location.absUrl();
+      urlPrefix = urlPrefix.split('#')[0];
+      QDR.log.debug('started QDR.TopologyController with urlPrefix: ' + urlPrefix);
+
+      // mouse event vars
+      let selected_node = null,
+        selected_link = null,
+        mousedown_link = null,
+        mousedown_node = null,
+        mouseover_node = null,
+        mouseup_node = null,
+        initial_mouse_down_position = null;
+
+      $scope.schema = 'Not connected';
+
+      $scope.contextNode = null; // node that is associated with the current context menu
+      $scope.isRight = function(mode) {
+        return mode.right;
+      };
+
+      var setNodesFixed = function (name, b) {
+        nodes.some(function (n) {
+          if (n.name === name) {
+            n.fixed = b;
+            return true;
+          }
+        });
+      };
+      $scope.setFixed = function(b) {
+        if ($scope.contextNode) {
+          $scope.contextNode.fixed = b;
+          setNodesFixed($scope.contextNode.name, b);
+          savePositions();
+        }
+        restart();
+      };
+      $scope.isFixed = function() {
+        if (!$scope.contextNode)
+          return false;
+        return ($scope.contextNode.fixed & 1);
+      };
+
+      let mouseX, mouseY;
+      var relativeMouse = function () {
+        let offset = $('#main_container').offset();
+        return {left: (mouseX + $(document).scrollLeft()) - 1,
+          top: (mouseY  + $(document).scrollTop()) - 1,
+          offset: offset
+        };
+      };
+      // event handlers for popup context menu
+      $(document).mousemove(function(e) {
+        mouseX = e.clientX;
+        mouseY = e.clientY;
+      });
+      $(document).mousemove();
+      $(document).click(function() {
+        $scope.contextNode = null;
+        $('.contextMenu').fadeOut(200);
+      });
+
+      const radii = {
+        'inter-router': 25,
+        'normal': 15,
+        'on-demand': 15,
+        'route-container': 15,
+      };
+      let svg, lsvg;
+      let force;
+      let animate = false; // should the force graph organize itself when it is displayed
+      let path, circle;
+      let savedKeys = {};
+      let width = 0;
+      let height = 0;
+
+      var getSizes = function() {
+        let legendWidth = 143;
+        let display = $('#topo_svg_legend').css('display');
+        if (display === 'none')
+          legendWidth = 0;
+        const gap = 5;
+        let width = $('#topology').width() - gap - legendWidth;
+        let top = $('#topology').offset().top;
+        let tpformHeight = $('#topologyForm').height();
+        let height = Math.max(window.innerHeight, tpformHeight + top) - top - gap;
+        if (width < 10) {
+          QDR.log.info('page width and height are abnormal w:' + width + ' height:' + height);
+          return [0, 0];
+        }
+        return [width, height];
+      };
+      var resize = function() {
+        if (!svg)
+          return;
+        let sizes = getSizes();
+        width = sizes[0];
+        height = sizes[1];
+        if (width > 0) {
+          // set attrs and 'resume' force
+          svg.attr('width', width);
+          svg.attr('height', height);
+          force.size(sizes).resume();
+        }
+      };
+
+      $scope.$on('panel-resized', function () {
+        resize();
+      });
+      window.addEventListener('resize', resize);
+      let sizes = getSizes();
+      width = sizes[0];
+      height = sizes[1];
+      if (width <= 0 || height <= 0)
+        return;
+
+      var nodeExists = function (connectionContainer) {
+        return nodes.findIndex( function (node) {
+          return node.container === connectionContainer;
+        });
+      };
+      var normalExists = function (connectionContainer) {
+        let normalInfo = {};
+        for (let i=0; i<nodes.length; ++i) {
+          if (nodes[i].normals) {
+            if (nodes[i].normals.some(function (normal, j) {
+              if (normal.container === connectionContainer && i !== j) {
+                normalInfo = {nodesIndex: i, normalsIndex: j};
+                return true;
+              }
+              return false;
+            }))
+              break;
+          }
+        }
+        return normalInfo;
+      };
+      var getLinkSource = function (nodesIndex) {
+        for (let i=0; i<links.length; ++i) {
+          if (links[i].target === nodesIndex)
+            return i;
+        }
+        return -1;
+      };
+      var aNode = function(id, name, nodeType, nodeInfo, nodeIndex, x, y, connectionContainer, resultIndex, fixed, properties) {
+        properties = properties || {};
+        for (let i=0; i<nodes.length; ++i) {
+          if (nodes[i].name === name || nodes[i].container === connectionContainer) {
+            if (properties.product)
+              nodes[i].properties = properties;
+            return nodes[i];
+          }
+        }
+        let routerId = QDRService.management.topology.nameFromId(id);
+        return {
+          key: id,
+          name: name,
+          nodeType: nodeType,
+          properties: properties,
+          routerId: routerId,
+          x: x,
+          y: y,
+          id: nodeIndex,
+          resultIndex: resultIndex,
+          fixed: !!+fixed,
+          cls: '',
+          container: connectionContainer
+        };
+      };
+
+      var getLinkDir = function (id, connection, onode) {
+        let links = onode['router.link'];
+        if (!links) {
+          return 'unknown';
+        }
+        let inCount = 0, outCount = 0;
+        links.results.forEach( function (linkResult) {
+          let link = QDRService.utilities.flatten(links.attributeNames, linkResult);
+          if (link.linkType === 'endpoint' && link.connectionId === connection.identity)
+            if (link.linkDir === 'in')
+              ++inCount;
+            else
+              ++outCount;
+        });
+        if (inCount > 0 && outCount > 0)
+          return 'both';
+        if (inCount > 0)
+          return 'in';
+        if (outCount > 0)
+          return 'out';
+        return 'unknown';
+      };
+
+      var savePositions = function () {
+        nodes.forEach( function (d) {
+          localStorage[d.name] = angular.toJson({
+            x: Math.round(d.x),
+            y: Math.round(d.y),
+            fixed: (d.fixed & 1) ? 1 : 0,
+          });
+        });
+      };
+
+      var initializeNodes = function (nodeInfo) {
+        let nodeCount = Object.keys(nodeInfo).length;
+        let yInit = 50;
+        forceData.nodes = nodes = [];
+        for (let id in nodeInfo) {
+          let name = QDRService.management.topology.nameFromId(id);
+          // if we have any new nodes, animate the force graph to position them
+          let position = angular.fromJson(localStorage[name]);
+          if (!angular.isDefined(position)) {
+            animate = true;
+            position = {
+              x: Math.round(width / 4 + ((width / 2) / nodeCount) * nodes.length),
+              y: Math.round(height / 2 + Math.sin(nodes.length / (Math.PI*2.0)) * height / 4),
+              fixed: false,
+            };
+            //QDR.log.debug("new node pos (" + position.x + ", " + position.y + ")")
+          }
+          if (position.y > height) {
+            position.y = 200 - yInit;
+            yInit *= -1;
+          }
+          nodes.push(aNode(id, name, 'inter-router', nodeInfo, nodes.length, position.x, position.y, name, undefined, position.fixed));
+        }
+      };
+
+      var initializeLinks = function (nodeInfo, unknowns) {
+        forceData.links = links = [];
+        let source = 0;
+        let client = 1.0;
+        for (let id in nodeInfo) {
+          let onode = nodeInfo[id];
+          if (!onode['connection'])
+            continue;
+          let conns = onode['connection'].results;
+          let attrs = onode['connection'].attributeNames;
+          //QDR.log.debug("external client parent is " + parent);
+          let normalsParent = {}; // 1st normal node for this parent
+
+          for (let j = 0; j < conns.length; j++) {
+            let connection = QDRService.utilities.flatten(attrs, conns[j]);
+            let role = connection.role;
+            let properties = connection.properties || {};
+            let dir = connection.dir;
+            if (role == 'inter-router') {
+              let connId = connection.container;
+              let target = getContainerIndex(connId, nodeInfo);
+              if (target >= 0) {
+                getLink(source, target, dir, '', source + '-' + target);
+              }
+            } /* else if (role == "normal" || role == "on-demand" || role === "route-container")*/ {
+              // not an connection between routers, but an external connection
+              let name = QDRService.management.topology.nameFromId(id) + '.' + connection.identity;
+
+              // if we have any new clients, animate the force graph to position them
+              let position = angular.fromJson(localStorage[name]);
+              if (!angular.isDefined(position)) {
+                animate = true;
+                position = {
+                  x: Math.round(nodes[source].x + 40 * Math.sin(client / (Math.PI * 2.0))),
+                  y: Math.round(nodes[source].y + 40 * Math.cos(client / (Math.PI * 2.0))),
+                  fixed: false
+                };
+                //QDR.log.debug("new client pos (" + position.x + ", " + position.y + ")")
+              }// else QDR.log.debug("using previous location")
+              if (position.y > height) {
+                position.y = Math.round(nodes[source].y + 40 + Math.cos(client / (Math.PI * 2.0)));
+              }
+              let existingNodeIndex = nodeExists(connection.container);
+              let normalInfo = normalExists(connection.container);
+              let node = aNode(id, name, role, nodeInfo, nodes.length, position.x, position.y, connection.container, j, position.fixed, properties);
+              let nodeType = QDRService.utilities.isAConsole(properties, connection.identity, role, node.key) ? 'console' : 'client';
+              let cdir = getLinkDir(id, connection, onode);
+              if (existingNodeIndex >= 0) {
+                // make a link between the current router (source) and the existing node
+                getLink(source, existingNodeIndex, dir, 'small', connection.name);
+              } else if (normalInfo.nodesIndex) {
+                // get node index of node that contained this connection in its normals array
+                let normalSource = getLinkSource(normalInfo.nodesIndex);
+                if (normalSource >= 0) {
+                  if (cdir === 'unknown')
+                    cdir = dir;
+                  node.cdir = cdir;
+                  nodes.push(node);
+                  // create link from original node to the new node
+                  getLink(links[normalSource].source, nodes.length-1, cdir, 'small', connection.name);
+                  // create link from this router to the new node
+                  getLink(source, nodes.length-1, cdir, 'small', connection.name);
+                  // remove the old node from the normals list
+                  nodes[normalInfo.nodesIndex].normals.splice(normalInfo.normalsIndex, 1);
+                }
+              } else if (role === 'normal') {
+              // normal nodes can be collapsed into a single node if they are all the same dir
+                if (cdir !== 'unknown') {
+                  node.user = connection.user;
+                  node.isEncrypted = connection.isEncrypted;
+                  node.host = connection.host;
+                  node.connectionId = connection.identity;
+                  node.cdir = cdir;
+                  // determine arrow direction by using the link directions
+                  if (!normalsParent[nodeType+cdir]) {
+                    normalsParent[nodeType+cdir] = node;
+                    nodes.push(node);
+                    node.normals = [node];
+                    // now add a link
+                    getLink(source, nodes.length - 1, cdir, 'small', connection.name);
+                    client++;
+                  } else {
+                    normalsParent[nodeType+cdir].normals.push(node);
+                  }
+                } else {
+                  node.id = nodes.length - 1 + unknowns.length;
+                  unknowns.push(node);
+                }
+              } else {
+                nodes.push(node);
+                // now add a link
+                getLink(source, nodes.length - 1, dir, 'small', connection.name);
+                client++;
+              }
+            }
+          }
+          source++;
+        }
+      };
+
+      // vary the following force graph attributes based on nodeCount
+      // <= 6 routers returns min, >= 80 routers returns max, interpolate linearly
+      var forceScale = function(nodeCount, min, max) {
+        let count = nodeCount;
+        if (nodeCount < 6) count = 6;
+        if (nodeCount > 80) count = 80;
+        let x = d3.scale.linear()
+          .domain([6,80])
+          .range([min, max]);
+        //QDR.log.debug("forceScale(" + nodeCount + ", " + min + ", " + max + "  returns " + x(count) + " " + x(nodeCount))
+        return x(count);
+      };
+      var linkDistance = function (d, nodeCount) {
+        if (d.target.nodeType === 'inter-router')
+          return forceScale(nodeCount, 150, 70);
+        return forceScale(nodeCount, 75, 40);
+      };
+      var charge = function (d, nodeCount) {
+        if (d.nodeType === 'inter-router')
+          return forceScale(nodeCount, -1800, -900);
+        return -900;
+      };
+      var gravity = function (d, nodeCount) {
+        return forceScale(nodeCount, 0.0001, 0.1);
+      };
+      // initialize the nodes and links array from the QDRService.topology._nodeInfo object
+      var initForceGraph = function() {
+        forceData.nodes = nodes = [];
+        forceData.links = links = [];
+        let nodeInfo = QDRService.management.topology.nodeInfo();
+        let nodeCount = Object.keys(nodeInfo).length;
+
+        let oldSelectedNode = selected_node;
+        let oldMouseoverNode = mouseover_node;
+        mouseover_node = null;
+        selected_node = null;
+        selected_link = null;
+
+        savePositions();
+        d3.select('#SVG_ID').remove();
+        svg = d3.select('#topology')
+          .append('svg')
+          .attr('id', 'SVG_ID')
+          .attr('width', width)
+          .attr('height', height)
+          .on('click', function() {
+            removeCrosssection();
+          });
+
+        $(document).keyup(function(e) {
+          if (e.keyCode === 27) {
+            removeCrosssection();
+          }
+        });
+
+        // the legend
+        d3.select('#topo_svg_legend svg').remove();
+        lsvg = d3.select('#topo_svg_legend')
+          .append('svg')
+          .attr('id', 'svglegend');
+        lsvg = lsvg.append('svg:g')
+          .attr('transform', 'translate(' + (radii['inter-router'] + 2) + ',' + (radii['inter-router'] + 2) + ')')
+          .selectAll('g');
+
+        // mouse event vars
+        mousedown_link = null;
+        mousedown_node = null;
+        mouseup_node = null;
+
+        // initialize the list of nodes
+        initializeNodes(nodeInfo);
+        savePositions();
+
+        // initialize the list of links
+        let unknowns = [];
+        initializeLinks(nodeInfo, unknowns);
+        $scope.schema = QDRService.management.schema();
+        // init D3 force layout
+        force = d3.layout.force()
+          .nodes(nodes)
+          .links(links)
+          .size([width, height])
+          .linkDistance(function(d) { return linkDistance(d, nodeCount); })
+          .charge(function(d) { return charge(d, nodeCount); })
+          .friction(.10)
+          .gravity(function(d) { return gravity(d, nodeCount); })
+          .on('tick', tick)
+          .on('end', function () {savePositions();})
+          .start();
+
+        svg.append('svg:defs').selectAll('marker')
+          .data(['end-arrow', 'end-arrow-selected', 'end-arrow-small', 'end-arrow-highlighted']) // Different link/path types can be defined here
+          .enter().append('svg:marker') // This section adds in the arrows
+          .attr('id', String)
+          .attr('viewBox', '0 -5 10 10')
+          .attr('refX', 24)
+          .attr('markerWidth', 4)
+          .attr('markerHeight', 4)
+          .attr('orient', 'auto')
+          .classed('small', function (d) {return d.indexOf('small') > -1;})
+          .append('svg:path')
+          .attr('d', 'M 0 -5 L 10 0 L 0 5 z');
+
+        svg.append('svg:defs').selectAll('marker')
+          .data(['start-arrow', 'start-arrow-selected', 'start-arrow-small', 'start-arrow-highlighted']) // Different link/path types can be defined here
+          .enter().append('svg:marker') // This section adds in the arrows
+          .attr('id', String)
+          .attr('viewBox', '0 -5 10 10')
+          .attr('refX', function (d) { return d !== 'start-arrow-small' ? -14 : -24;})
+          .attr('markerWidth', 4)
+          .attr('markerHeight', 4)
+          .attr('orient', 'auto')
+          .append('svg:path')
+          .attr('d', 'M 10 -5 L 0 0 L 10 5 z');
+
+        let grad = svg.append('svg:defs').append('linearGradient')
+          .attr('id', 'half-circle')
+          .attr('x1', '0%')
+          .attr('x2', '0%')
+          .attr('y1', '100%')
+          .attr('y2', '0%');
+        grad.append('stop').attr('offset', '50%').style('stop-color', '#C0F0C0');
+        grad.append('stop').attr('offset', '50%').style('stop-color', '#F0F000');
+
+        // handles to link and node element groups
+        path = svg.append('svg:g').selectAll('path'),
+        circle = svg.append('svg:g').selectAll('g');
+
+        // app starts here
+        restart(false);
+        force.start();
+        if (oldSelectedNode) {
+          d3.selectAll('circle.inter-router').classed('selected', function (d) {
+            if (d.key === oldSelectedNode.key) {
+              selected_node = d;
+              return true;
+            }
+            return false;
+          });
+        }
+        if (oldMouseoverNode && selected_node) {
+          d3.selectAll('circle.inter-router').each(function (d) {
+            if (d.key === oldMouseoverNode.key) {
+              mouseover_node = d;
+              QDRService.management.topology.ensureAllEntities([{entity: 'router.node', attrs: ['id','nextHop']}], function () {
+                nextHop(selected_node, d);
+                restart();
+              });
+            }
+          });
+        }
+        setTimeout(function () {
+          updateForm(Object.keys(QDRService.management.topology.nodeInfo())[0], 'router', 0);
+        });
+
+        // if any clients don't yet have link directions, get the links for those nodes and restart the graph
+        if (unknowns.length > 0)
+          setTimeout(resolveUnknowns, 10, nodeInfo, unknowns);
+
+        var continueForce = function (extra) {
+          if (extra > 0) {
+            --extra;
+            force.start();
+            setTimeout(continueForce, 100, extra);
+          }
+        };
+        continueForce(forceScale(nodeCount, 0, 200));  // give graph time to settle down
+      };
+
+      var resolveUnknowns = function (nodeInfo, unknowns) {
+        let unknownNodes = {};
+        // collapse the unknown node.keys using an object
+        for (let i=0; i<unknowns.length; ++i) {
+          unknownNodes[unknowns[i].key] = 1;
+        }
+        unknownNodes = Object.keys(unknownNodes);
+        //QDR.log.info("-- resolveUnknowns: ensuring .connection and .router.link are present for each node")
+        QDRService.management.topology.ensureEntities(unknownNodes, [{entity: 'connection', force: true}, {entity: 'router.link', attrs: ['linkType','connectionId','linkDir'], force: true}], function () {
+          nodeInfo = QDRService.management.topology.nodeInfo();
+          initializeLinks(nodeInfo, []);
+          // collapse any router-container nodes that are duplicates
+          animate = true;
+          force.nodes(nodes).links(links).start();
+          restart(false);
+        });
+      };
+
+      function updateForm(key, entity, resultIndex) {
+        if (!angular.isDefined(resultIndex))
+          return;
+        let nodeList = QDRService.management.topology.nodeIdList();
+        if (nodeList.indexOf(key) > -1) {
+          QDRService.management.topology.fetchEntities(key, [
+            {entity: entity},
+            {entity: 'listener', attrs: ['role', 'port']}], function (results) {
+            let onode = results[key];
+            if (!onode[entity]) {
+              console.log('requested ' + entity + ' but didn\'t get it');
+              return;
+            }
+            let nodeResults = onode[entity].results[resultIndex];
+            let nodeAttributes = onode[entity].attributeNames;
+            let attributes = nodeResults.map(function(row, i) {
+              return {
+                attributeName: nodeAttributes[i],
+                attributeValue: row
+              };
+            });
+            // sort by attributeName
+            attributes.sort(function(a, b) {
+              return a.attributeName.localeCompare(b.attributeName);
+            });
+
+            // move the Name first
+            let nameIndex = attributes.findIndex(function(attr) {
+              return attr.attributeName === 'name';
+            });
+            if (nameIndex >= 0)
+              attributes.splice(0, 0, attributes.splice(nameIndex, 1)[0]);
+
+            // get the list of ports this router is listening on
+            if (entity === 'router') {
+              let listeners = onode['listener'].results;
+              let listenerAttributes = onode['listener'].attributeNames;
+              let normals = listeners.filter(function(listener) {
+                return QDRService.utilities.valFor(listenerAttributes, listener, 'role') === 'normal';
+              });
+              let ports = [];
+              normals.forEach(function(normalListener) {
+                ports.push(QDRService.utilities.valFor(listenerAttributes, normalListener, 'port'));
+              });
+              // add as 2nd row
+              if (ports.length) {
+                attributes.splice(1, 0, {
+                  attributeName: 'Listening on',
+                  attributeValue: ports,
+                  description: 'The port(s) on which this router is listening for connections'
+                });
+              }
+            }
+            $rootScope.$broadcast('showEntityForm', {
+              entity: entity,
+              attributes: attributes
+            });
+            if (!$scope.$$phase) $scope.$apply();
+          });
+        }
+      }
+
+      function getContainerIndex(_id, nodeInfo) {
+        let nodeIndex = 0;
+        for (let id in nodeInfo) {
+          if (QDRService.management.topology.nameFromId(id) === _id)
+            return nodeIndex;
+          ++nodeIndex;
+        }
+        return -1;
+      }
+
+      function getLink(_source, _target, dir, cls, uid) {
+        for (let i = 0; i < links.length; i++) {
+          let s = links[i].source,
+            t = links[i].target;
+          if (typeof links[i].source == 'object') {
+            s = s.id;
+            t = t.id;
+          }
+          if (s == _source && t == _target) {
+            return i;
+          }
+          // same link, just reversed
+          if (s == _target && t == _source) {
+            return -i;
+          }
+        }
+        //QDR.log.debug("creating new link (" + (links.length) + ") between " + nodes[_source].name + " and " + nodes[_target].name);
+        if (links.some( function (l) { return l.uid === uid;}))
+          uid = uid + '.' + links.length;
+        let link = {
+          source: _source,
+          target: _target,
+          left: dir != 'out',
+          right: (dir == 'out' || dir == 'both'),
+          cls: cls,
+          uid: uid,
+        };
+        return links.push(link) - 1;
+      }
+
+
+      function resetMouseVars() {
+        mousedown_node = null;
+        mouseover_node = null;
+        mouseup_node = null;
+        mousedown_link = null;
+      }
+
+      // update force layout (called automatically each iteration)
+      function tick() {
+        circle.attr('transform', function(d) {
+          let cradius;
+          if (d.nodeType == 'inter-router') {
+            cradius = d.left ? radius + 8 : radius;
+          } else {
+            cradius = d.left ? radiusNormal + 18 : radiusNormal;
+          }
+          d.x = Math.max(d.x, radiusNormal * 2);
+          d.y = Math.max(d.y, radiusNormal * 2);
+          d.x = Math.max(0, Math.min(width - cradius, d.x));
+          d.y = Math.max(0, Math.min(height - cradius, d.y));
+          return 'translate(' + d.x + ',' + d.y + ')';
+        });
+
+        // draw directed edges with proper padding from node centers
+        path.attr('d', function(d) {
+          let sourcePadding, targetPadding, r;
+
+          r = d.target.nodeType === 'inter-router' ? radius : radiusNormal - 18;
+          sourcePadding = targetPadding = 0;
+          let dtx = Math.max(targetPadding, Math.min(width - r, d.target.x)),
+            dty = Math.max(targetPadding, Math.min(height - r, d.target.y)),
+            dsx = Math.max(sourcePadding, Math.min(width - r, d.source.x)),
+            dsy = Math.max(sourcePadding, Math.min(height - r, d.source.y));
+
+          let deltaX = dtx - dsx,
+            deltaY = dty - dsy,
+            dist = Math.sqrt(deltaX * deltaX + deltaY * deltaY);
+          if (dist == 0)
+            dist = 0.001;
+          let normX = deltaX / dist,
+            normY = deltaY / dist;
+          let sourceX = dsx + (sourcePadding * normX),
+            sourceY = dsy + (sourcePadding * normY),
+            targetX = dtx - (targetPadding * normX),
+            targetY = dty - (targetPadding * normY);
+          sourceX = Math.max(0, sourceX);
+          sourceY = Math.max(0, sourceY);
+          targetX = Math.max(0, targetX);
+          targetY = Math.max(0, targetY);
+
+          return 'M' + sourceX + ',' + sourceY + 'L' + targetX + ',' + targetY;
+        })
+          .attr('id', function (d) {
+            return ['path', d.source.index, d.target.index].join('-');
+          });
+
+        if (!animate) {
+          animate = true;
+          force.stop();
+        }
+      }
+
+      // highlight the paths between the selected node and the hovered node
+      function findNextHopNode(from, d) {
+        // d is the node that the mouse is over
+        // from is the selected_node ....
+        if (!from)
+          return null;
+
+        if (from == d)
+          return selected_node;
+
+        //QDR.log.debug("finding nextHop from: " + from.name + " to " + d.name);
+        let sInfo = QDRService.management.topology.nodeInfo()[from.key];
+
+        if (!sInfo) {
+          QDR.log.warn('unable to find topology node info for ' + from.key);
+          return null;
+        }
+
+        // find the hovered name in the selected name's .router.node results
+        if (!sInfo['router.node'])
+          return null;
+        let aAr = sInfo['router.node'].attributeNames;
+        let vAr = sInfo['router.node'].results;
+        for (let hIdx = 0; hIdx < vAr.length; ++hIdx) {
+          let addrT = QDRService.utilities.valFor(aAr, vAr[hIdx], 'id');
+          if (addrT == d.name) {
+            //QDR.log.debug("found " + d.name + " at " + hIdx);
+            let nextHop = QDRService.utilities.valFor(aAr, vAr[hIdx], 'nextHop');
+            //QDR.log.debug("nextHop was " + nextHop);
+            return (nextHop == null) ? nodeFor(addrT) : nodeFor(nextHop);
+          }
+        }
+        return null;
+      }
+
+      function nodeFor(name) {
+        for (let i = 0; i < nodes.length; ++i) {
+          if (nodes[i].name == name)
+            return nodes[i];
+        }
+        return null;
+      }
+
+      function linkFor(source, target) {
+        for (let i = 0; i < links.length; ++i) {
+          if ((links[i].source == source) && (links[i].target == target))
+            return links[i];
+          if ((links[i].source == target) && (links[i].target == source))
+            return links[i];
+        }
+        // the selected node was a client/broker
+        //QDR.log.debug("failed to find a link between ");
+        //console.dump(source);
+        //QDR.log.debug(" and ");
+        //console.dump(target);
+        return null;
+      }
+
+      function clearPopups() {
+        d3.select('#crosssection').style('display', 'none');
+        $('.hastip').empty();
+        d3.select('#multiple_details').style('display', 'none');
+        d3.select('#link_details').style('display', 'none');
+        d3.select('#node_context_menu').style('display', 'none');
+
+      }
+
+      function removeCrosssection() {
+        d3.select('#crosssection svg g').transition()
+          .duration(1000)
+          .attr('transform', 'scale(0)')
+          .style('opacity', 0)
+          .each('end', function () {
+            d3.select('#crosssection svg').remove();
+            d3.select('#crosssection').style('display','none');
+          });
+        d3.select('#multiple_details').transition()
+          .duration(500)
+          .style('opacity', 0)
+          .each('end', function() {
+            d3.select('#multiple_details').style('display', 'none');
+            stopUpdateConnectionsGrid();
+          });
+        hideLinkDetails();
+      }
+
+      function hideLinkDetails() {
+        d3.select('#link_details').transition()
+          .duration(500)
+          .style('opacity', 0)
+          .each('end', function() {
+            d3.select('#link_details').style('display', 'none');
+          });
+      }
+
+      function clerAllHighlights() {
+        for (let i = 0; i < links.length; ++i) {
+          links[i]['highlighted'] = false;
+        }
+        for (let i = 0; i<nodes.length; ++i) {
+          nodes[i]['highlighted'] = false;
+        }
+      }
+      // takes the nodes and links array of objects and adds svg elements for everything that hasn't already
+      // been added
+      function restart(start) {
+        circle.call(force.drag);
+
+        // path (link) group
+        path = path.data(links, function(d) {return d.uid;});
+
+        // update existing links
+        path.classed('selected', function(d) {
+          return d === selected_link;
+        })
+          .classed('highlighted', function(d) {
+            return d.highlighted;
+          })
+          .attr('marker-start', function(d) {
+            let sel = d === selected_link ? '-selected' : (d.cls === 'small' ? '-small' : '');
+            if (d.highlighted)
+              sel = '-highlighted';
+            return d.left ? 'url(' + urlPrefix + '#start-arrow' + sel + ')' : '';
+          })
+          .attr('marker-end', function(d) {
+            let sel = d === selected_link ? '-selected' : (d.cls === 'small' ? '-small' : '');
+            if (d.highlighted)
+              sel = '-highlighted';
+            return d.right ? 'url(' + urlPrefix + '#end-arrow' + sel + ')' : '';
+          });
+        // add new links. if a link with a new uid is found in the data, add a new path
+        path.enter().append('svg:path')
+          .attr('class', 'link')
+          .attr('marker-start', function(d) {
+            let sel = d === selected_link ? '-selected' : (d.cls === 'small' ? '-small' : '');
+            return d.left ? 'url(' + urlPrefix + '#start-arrow' + sel + ')' : '';
+          })
+          .attr('marker-end', function(d) {
+            let sel = d === selected_link ? '-selected' : (d.cls === 'small' ? '-small' : '');
+            return d.right ? 'url(' + urlPrefix + '#end-arrow' + sel + ')' : '';
+          })
+          .classed('small', function(d) {
+            return d.cls == 'small';
+          })
+          .on('mouseover', function(d) { // mouse over a path
+            let resultIndex = 0; // the connection to use
+            let left = d.left ? d.target : d.source;
+            // right is the node that the arrow points to, left is the other node
+            let right = d.left ? d.source : d.target;
+            let onode = QDRService.management.topology.nodeInfo()[left.key];
+            // loop through all the connections for left, and find the one for right
+            if (!onode || !onode['connection'])
+              return;
+            // update the info dialog for the link the mouse is over
+            if (!selected_node && !selected_link) {
+              for (resultIndex = 0; resultIndex < onode['connection'].results.length; ++resultIndex) {
+                let conn = onode['connection'].results[resultIndex];
+                /// find the connection whose container is the right's name
+                let name = QDRService.utilities.valFor(onode['connection'].attributeNames, conn, 'container');
+                if (name == right.routerId) {
+                  break;
+                }
+              }
+              // did not find connection. this is a connection to a non-interrouter node
+              if (resultIndex === onode['connection'].results.length) {
+                // use the non-interrouter node's connection info
+                left = d.target;
+                resultIndex = left.resultIndex;
+              }
+              updateForm(left.key, 'connection', resultIndex);
+            }
+
+            mousedown_link = d;
+            selected_link = mousedown_link;
+            restart();
+          })
+          .on('mousemove', function (d) {
+            let top = $('#topology').offset().top - 5;
+            $timeout(function () {
+              $scope.trustedpopoverContent = $sce.trustAsHtml(connectionPopupHTML(d));
+            });
+            d3.select('#popover-div')
+              .style('display', 'block')
+              .style('left', (d3.event.pageX+5)+'px')
+              .style('top', (d3.event.pageY-top)+'px');
+          })
+          .on('mouseout', function() { // mouse out of a path
+            d3.select('#popover-div')
+              .style('display', 'none');
+            selected_link = null;
+            restart();
+          })
+          // left click a path
+          .on('click', function (d) {
+            let clickPos = d3.mouse(this);
+            d3.event.stopPropagation();
+            clearPopups();
+            var showCrossSection = function() {
+              const diameter = 400;
+              let pack = d3.layout.pack()
+                .size([diameter - 4, diameter - 4])
+                .padding(-10)
+                .value(function(d) { return d.size; });
+
+              d3.select('#crosssection svg').remove();
+              let svg = d3.select('#crosssection').append('svg')
+                .attr('width', diameter)
+                .attr('height', diameter);
+
+              let rg = svg.append('svg:defs')
+                .append('radialGradient')
+                .attr('id', 'cross-gradient')
+                .attr('gradientTransform', 'scale(2.0) translate(-0.5,-0.5)');
+
+              rg
+                .append('stop')
+                .attr('offset', '0%')
+                .attr('stop-color', '#feffff');
+              rg
+                .append('stop')
+                .attr('offset', '40%')
+                .attr('stop-color', '#cfe2f3');
+
+              let svgg = svg.append('g')
+                .attr('transform', 'translate(2,2)');
+
+              svgg
+                .append('rect')
+                .attr('x', 0)
+                .attr('y', 0)
+                .attr('width', 200)
+                .attr('height', 200)
+                .attr('class', 'cross-rect')
+                .attr('fill', 'url('+urlPrefix+'#cross-gradient)');
+
+              svgg
+                .append('line')
+                .attr('class', 'cross-line')
+                .attr({x1: 2, y1: 0, x2: 200, y2: 0});
+              svgg
+                .append('line')
+                .attr('class', 'cross-line')
+                .attr({x1: 2, y1: 0, x2: 0, y2: 200});
+
+              /*
+              let simpleLine = d3.svg.line();
+              svgg
+                .append('path')
+                .attr({
+                  d: simpleLine([[0,0],[0,200]]),
+                  stroke: '#000',
+                  'stroke-width': '4px'
+                });
+              svgg
+                .append('path')
+                .attr({
+                  d: simpleLine([[0,0],[200,0]]),
+                  stroke: '#000',
+                  'stroke-width': '4px'
+                });
+*/
+              let root = {
+                name: ' Links between ' + d.source.name + ' and ' + d.target.name,
+                children: []
+              };
+              let nodeInfo = QDRService.management.topology.nodeInfo();
+              let connections = nodeInfo[d.source.key]['connection'];
+              let containerIndex = connections.attributeNames.indexOf('container');
+              connections.results.some ( function (connection) {
+                if (connection[containerIndex] == d.target.routerId) {
+                  root.attributeNames = connections.attributeNames;
+                  root.obj = connection;
+                  root.desc = 'Connection';
+                  return true;    // stop looping after 1 match
+                }
+                return false;
+              });
+
+              // find router.links where link.remoteContainer is d.source.name
+              let links = nodeInfo[d.source.key]['router.link'];
+              let identityIndex = connections.attributeNames.indexOf('identity');
+              let roleIndex = connections.attributeNames.indexOf('role');
+              let connectionIdIndex = links.attributeNames.indexOf('connectionId');
+              let linkTypeIndex = links.attributeNames.indexOf('linkType');
+              let nameIndex = links.attributeNames.indexOf('name');
+              let linkDirIndex = links.attributeNames.indexOf('linkDir');
+
+              if (roleIndex < 0 || identityIndex < 0 || connectionIdIndex < 0
+                || linkTypeIndex < 0 || nameIndex < 0 || linkDirIndex < 0)
+                return;
+              links.results.forEach ( function (link) {
+                if (root.obj && link[connectionIdIndex] == root.obj[identityIndex] && link[linkTypeIndex] == root.obj[roleIndex])
+                  root.children.push (
+                    { name: ' ' + link[linkDirIndex] + ' ',
+                      size: 100,
+                      obj: link,
+                      desc: 'Link',
+                      attributeNames: links.attributeNames
+                    });
+              });
+              if (root.children.length == 0)
+                return;
+              let node = svgg.datum(root).selectAll('.node')
+                .data(pack.nodes)
+                .enter().append('g')
+                .attr('class', function(d) { return d.children ? 'parent node hastip' : 'leaf node hastip'; })
+                .attr('transform', function(d) { return 'translate(' + d.x + ',' + d.y + ')' + (!d.children ? 'scale(0.9)' : ''); });
+              node.append('circle')
+                .attr('r', function(d) { return d.r; });
+
+              node.on('mouseenter', function (d) {
+                let title = '<h4>' + d.desc + '</h4><table class=\'tiptable\'><tbody>';
+                if (d.attributeNames)
+                  d.attributeNames.forEach( function (n, i) {
+                    title += '<tr><td>' + n + '</td><td>';
+                    title += d.obj[i] != null ? d.obj[i] : '';
+                    title += '</td></tr>';
+                  });
+                title += '</tbody></table>';
+                $timeout( (function () {
+                  $scope.crosshtml = $sce.trustAsHtml(title);
+                  $('#crosshtml').show();
+                  let parent = $('#crosssection');
+                  let ppos = parent.position();
+                  let mleft = ppos.left + parent.width();
+                  $('#crosshtml').css({left: mleft, top: ppos.top});
+                }).bind(this));
+              });
+              node.on('mouseout', function () {
+                $('#crosshtml').hide();
+              });
+
+              node.append('text')
+                .attr('dy', function (d) { return d.children ? '-10em' : '.5em';})
+                .style('text-anchor', 'middle')
+                .text(function(d) {
+                  return d.name.substring(0, d.r / 3);
+                });
+              svgg.attr('transform', 'translate(2,2) scale(0.01)');
+
+              let bounds = $('#topology').position();
+              d3.select('#crosssection')
+                .style('display', 'block')
+                .style('left', (clickPos[0] + bounds.left) + 'px')
+                .style('top', (clickPos[1] + bounds.top) + 'px');
+
+              svgg.transition()
+                .attr('transform', 'translate(2,2) scale(1)')
+                .each('end', function ()  {
+                  d3.selectAll('#crosssection g.leaf text').attr('dy', '.3em');
+                });
+            };
+            QDRService.management.topology.ensureEntities(d.source.key, {entity: 'router.link', force: true}, showCrossSection);
+          });
+        // remove old links
+        path.exit().remove();
+
+
+        // circle (node) group
+        // nodes are known by id
+        circle = circle.data(nodes, function(d) {
+          return d.name;
+        });
+
+        // update existing nodes visual states
+        circle.selectAll('circle')
+          .classed('highlighted', function(d) {
+            return d.highlighted;
+          })
+          .classed('selected', function(d) {
+            return (d === selected_node);
+          })
+          .classed('fixed', function(d) {
+            return d.fixed & 1;
+          });
+
+        // add new circle nodes. if nodes[] is longer than the existing paths, add a new path for each new element
+        let g = circle.enter().append('svg:g')
+          .classed('multiple', function(d) {
+            return (d.normals && d.normals.length > 1);
+          })
+          .attr('id', function (d) { return (d.nodeType !== 'normal' ? 'router' : 'client') + '-' + d.index; });
+
+        appendCircle(g)
+          .on('mouseover', function(d) {  // mouseover a circle
+            if (!selected_node && !mousedown_node) {
+              if (d.nodeType === 'inter-router') {
+                //QDR.log.debug("showing general form");
+                updateForm(d.key, 'router', 0);
+              } else if (d.nodeType === 'normal' || d.nodeType === 'on-demand' || d.nodeType === 'route-container') {
+                //QDR.log.debug("showing connections form");
+                updateForm(d.key, 'connection', d.resultIndex);
+              }
+            }
+
+            if (d === mousedown_node)
+              return;
+            //if (d === selected_node)
+            //    return;
+            // enlarge target node
+            d3.select(this).attr('transform', 'scale(1.1)');
+            // highlight the next-hop route from the selected node to this node
+            //mousedown_node = null;
+
+            if (!selected_node) {
+              return;
+            }
+            clerAllHighlights();
+            // we need .router.node info to highlight hops
+            QDRService.management.topology.ensureAllEntities([{entity: 'router.node', attrs: ['id','nextHop']}], function () {
+              mouseover_node = d;  // save this node in case the topology changes so we can restore the highlights
+              nextHop(selected_node, d);
+              restart();
+            });
+          })
+          .on('mouseout', function() { // mouse out for a circle
+            // unenlarge target node
+            d3.select(this).attr('transform', '');
+            clerAllHighlights();
+            mouseover_node = null;
+            restart();
+          })
+          .on('mousedown', function(d) { // mouse down for circle
+            if (d3.event.button !== 0) { // ignore all but left button
+              return;
+            }
+            mousedown_node = d;
+            // mouse position relative to svg
+            initial_mouse_down_position = d3.mouse(this.parentNode.parentNode.parentNode).slice();
+          })
+          .on('mouseup', function(d) {  // mouse up for circle
+            if (!mousedown_node)
+              return;
+
+            selected_link = null;
+            // unenlarge target node
+            d3.select(this).attr('transform', '');
+
+            // check for drag
+            mouseup_node = d;
+
+            let mySvg = this.parentNode.parentNode.parentNode;
+            // if we dragged the node, make it fixed
+            let cur_mouse = d3.mouse(mySvg);
+            if (cur_mouse[0] != initial_mouse_down_position[0] ||
+              cur_mouse[1] != initial_mouse_down_position[1]) {
+              d.fixed = true;
+              setNodesFixed(d.name, true);
+              resetMouseVars();
+              restart();
+              return;
+            }
+
+            // if this node was selected, unselect it
+            if (mousedown_node === selected_node) {
+              selected_node = null;
+            } else {
+              if (d.nodeType !== 'normal' && d.nodeType !== 'on-demand')
+                selected_node = mousedown_node;
+            }
+            clerAllHighlights();
+            mousedown_node = null;
+            if (!$scope.$$phase) $scope.$apply();
+            restart(false);
+
+          })
+          .on('dblclick', function(d) { // circle
+            if (d.fixed) {
+              d.fixed = false;
+              setNodesFixed(d.name, false);
+              restart(); // redraw the node without a dashed line
+              force.start(); // let the nodes move to a new position
+            }
+          })
+          .on('contextmenu', function(d) {  // circle
+            $(document).click();
+            d3.event.preventDefault();
+            let rm = relativeMouse();
+            d3.select('#node_context_menu')
+              .style({
+                display: 'block',
+                left: rm.left + 'px',
+                top: (rm.top - rm.offset.top) + 'px'
+              });
+            $timeout( function () {
+              $scope.contextNode = d;
+            });
+          })
+          .on('click', function(d) {  // circle
+            if (!mouseup_node)
+              return;
+            // clicked on a circle
+            clearPopups();
+            if (!d.normals) {
+              // circle was a router or a broker
+              if (QDRService.utilities.isArtemis(d)) {
+                const artemisPath = '/jmx/attributes?tab=artemis&con=Artemis';
+                if (QDR.isStandalone)
+                  window.location = $location.protocol() + '://localhost:8161/hawtio' + artemisPath;
+                else
+                  $location.path(artemisPath);
+              }
+              return;
+            }
+            d3.event.stopPropagation();
+            startUpdateConnectionsGrid(d);
+          });
+
+        appendContent(g);
+        appendTitle(g);
+
+        // remove old nodes
+        circle.exit().remove();
+
+        // add subcircles
+        svg.selectAll('.subcircle').remove();
+        let multiples = svg.selectAll('.multiple');
+        multiples.each(function(d) {
+          d.normals.forEach(function(n, i) {
+            if (i < d.normals.length - 1 && i < 3) // only show a few shadow circles
+              this.insert('svg:circle', ':first-child')
+                .attr('class', 'subcircle node')
+                .attr('r', 15 - i)
+                .attr('transform', 'translate(' + 4 * (i + 1) + ', 0)');
+          }, d3.select(this));
+        });
+        // call createLegend in timeout because:
+        // If we create the legend right away, then it will be destroyed when the accordian
+        // gets initialized as the page loads.
+        $timeout(createLegend);
+
+        if (!mousedown_node || !selected_node)
+          return;
+
+        if (!start)
+          return;
+        // set the graph in motion
+        //QDR.log.debug("mousedown_node is " + mousedown_node);
+        force.start();
+
+      }
+      let createLegend = function () {
+        // dynamically create the legend based on which node types are present
+        // the legend
+        d3.select('#topo_svg_legend svg').remove();
+        lsvg = d3.select('#topo_svg_legend')
+          .append('svg')
+          .attr('id', 'svglegend');
+        lsvg = lsvg.append('svg:g')
+          .attr('transform', 'translate(' + (radii['inter-router'] + 2) + ',' + (radii['inter-router'] + 2) + ')')
+          .selectAll('g');
+        let legendNodes = [];
+        legendNodes.push(aNode('Router', '', 'inter-router', '', undefined, 0, 0, 0, 0, false, {}));
+
+        if (!svg.selectAll('circle.console').empty()) {
+          legendNodes.push(aNode('Console', '', 'normal', '', undefined, 1, 0, 0, 0, false, {
+            console_identifier: 'Dispatch console'
+          }));
+        }
+        if (!svg.selectAll('circle.client.in').empty()) {
+          let node = aNode('Sender', '', 'normal', '', undefined, 2, 0, 0, 0, false, {});
+          node.cdir = 'in';
+          legendNodes.push(node);
+        }
+        if (!svg.selectAll('circle.client.out').empty()) {
+          let node = aNode('Receiver', '', 'normal', '', undefined, 3, 0, 0, 0, false, {});
+          node.cdir = 'out';
+          legendNodes.push(node);
+        }
+        if (!svg.selectAll('circle.client.inout').empty()) {
+          let node = aNode('Sender/Receiver', '', 'normal', '', undefined, 4, 0, 0, 0, false, {});
+          node.cdir = 'both';
+          legendNodes.push(node);
+        }
+        if (!svg.selectAll('circle.qpid-cpp').empty()) {
+          legendNodes.push(aNode('Qpid broker', '', 'route-container', '', undefined, 5, 0, 0, 0, false, {
+            product: 'qpid-cpp'
+          }));
+        }
+        if (!svg.selectAll('circle.artemis').empty()) {
+          legendNodes.push(aNode('Artemis broker', '', 'route-container', '', undefined, 6, 0, 0, 0, false,
+            {product: 'apache-activemq-artemis'}));
+        }
+        if (!svg.selectAll('circle.route-container').empty()) {
+          legendNodes.push(aNode('Service', '', 'route-container', 'external-service', undefined, 7, 0, 0, 0, false,
+            {product: ' External Service'}));
+        }
+        lsvg = lsvg.data(legendNodes, function(d) {
+          return d.key;
+        });
+        let lg = lsvg.enter().append('svg:g')
+          .attr('transform', function(d, i) {
+            // 45px between lines and add 10px space after 1st line
+            return 'translate(0, ' + (45 * i + (i > 0 ? 10 : 0)) + ')';
+          });
+
+        appendCircle(lg);
+        appendContent(lg);
+        appendTitle(lg);
+        lg.append('svg:text')
+          .attr('x', 35)
+          .attr('y', 6)
+          .attr('class', 'label')
+          .text(function(d) {
+            return d.key;
+          });
+        lsvg.exit().remove();
+        let svgEl = document.getElementById('svglegend');
+        if (svgEl) {
+          let bb;
+          // firefox can throw an exception on getBBox on an svg element
+          try {
+            bb = svgEl.getBBox();
+          } catch (e) {
+            bb = {
+              y: 0,
+              height: 200,
+              x: 0,
+              width: 200
+            };
+          }
+          svgEl.style.height = (bb.y + bb.height) + 'px';
+          svgEl.style.width = (bb.x + bb.width) + 'px';
+        }
+      };
+      let appendCircle = function(g) {
+        // add new circles and set their attr/class/behavior
+        return g.append('svg:circle')
+          .attr('class', 'node')
+          .attr('r', function(d) {
+            return radii[d.nodeType];
+          })
+          .attr('fill', function (d) {
+            if (d.cdir === 'both' && !QDRService.utilities.isConsole(d)) {
+              return 'url(' + urlPrefix + '#half-circle)';
+            }
+            return null;
+          })
+          .classed('fixed', function(d) {
+            return d.fixed & 1;
+          })
+          .classed('normal', function(d) {
+            return d.nodeType == 'normal' || QDRService.utilities.isConsole(d);
+          })
+          .classed('in', function(d) {
+            return d.cdir == 'in';
+          })
+          .classed('out', function(d) {
+            return d.cdir == 'out';
+          })
+          .classed('inout', function(d) {
+            return d.cdir == 'both';
+          })
+          .classed('inter-router', function(d) {
+            return d.nodeType == 'inter-router';
+          })
+          .classed('on-demand', function(d) {
+            return d.nodeType == 'on-demand';
+          })
+          .classed('console', function(d) {
+            return QDRService.utilities.isConsole(d);
+          })
+          .classed('artemis', function(d) {
+            return QDRService.utilities.isArtemis(d);
+          })
+          .classed('qpid-cpp', function(d) {
+            return QDRService.utilities.isQpid(d);
+          })
+          .classed('route-container', function (d) {
+            return (!QDRService.utilities.isArtemis(d) && !QDRService.utilities.isQpid(d) && d.nodeType === 'route-container');
+          })
+          .classed('client', function(d) {
+            return d.nodeType === 'normal' && !d.properties.console_identifier;
+          });
+      };
+      let appendContent = function(g) {
+        // show node IDs
+        g.append('svg:text')
+          .attr('x', 0)
+          .attr('y', function(d) {
+            let y = 7;
+            if (QDRService.utilities.isArtemis(d))
+              y = 8;
+            else if (QDRService.utilities.isQpid(d))
+              y = 9;
+            else if (d.nodeType === 'inter-router')
+              y = 4;
+            else if (d.nodeType === 'route-container')
+              y = 5;
+            return y;
+          })
+          .attr('class', 'id')
+          .classed('console', function(d) {
+            return QDRService.utilities.isConsole(d);
+          })
+          .classed('normal', function(d) {
+            return d.nodeType === 'normal';
+          })
+          .classed('on-demand', function(d) {
+            return d.nodeType === 'on-demand';
+          })
+          .classed('artemis', function(d) {
+            return QDRService.utilities.isArtemis(d);
+          })
+          .classed('qpid-cpp', function(d) {
+            return QDRService.utilities.isQpid(d);
+          })
+          .text(function(d) {
+            if (QDRService.utilities.isConsole(d)) {
+              return '\uf108'; // icon-desktop for this console
+            } else if (QDRService.utilities.isArtemis(d)) {
+              return '\ue900';
+            } else if (QDRService.utilities.isQpid(d)) {
+              return '\ue901';
+            } else if (d.nodeType === 'route-container') {
+              return d.properties.product ? d.properties.product[0].toUpperCase() : 'S';
+            } else if (d.nodeType === 'normal')
+              return '\uf109'; // icon-laptop for clients
+            return d.name.length > 7 ? d.name.substr(0, 6) + '...' : d.name;
+          });
+      };
+      let appendTitle = function(g) {
+        g.append('svg:title').text(function(d) {
+          let x = '';
+          if (d.normals && d.normals.length > 1)
+            x = ' x ' + d.normals.length;
+          if (QDRService.utilities.isConsole(d)) {
+            return 'Dispatch console' + x;
+          } else if (QDRService.utilities.isArtemis(d)) {
+            return 'Broker - Artemis' + x;
+          } else if (d.properties.product == 'qpid-cpp') {
+            return 'Broker - qpid-cpp' + x;
+          } else if (d.properties.product) {
+            return d.properties.product;
+          } else if (d.cdir === 'in')
+            return 'Sender' + x;
+          else if (d.cdir === 'out')
+            return 'Receiver' + x;
+          else if (d.cdir === 'both')
+            return 'Sender/Receiver' + x;
+          return d.nodeType == 'normal' ? 'client' + x : (d.nodeType == 'on-demand' ? 'broker' : 'Router ' + d.name);
+        });
+      };
+
+      var startUpdateConnectionsGrid = function(d) {
+        // called after each topology update
+        var extendConnections = function() {
+          // force a fetch of the links for this node
+          QDRService.management.topology.ensureEntities(d.key, {entity: 'router.link', force: true}, function () {
+            // the links for this node are now available
+            $scope.multiData = [];
+            let normals = d.normals;
+            // find updated normals for d
+            d3.selectAll('.normal')
+              .each(function(newd) {
+                if (newd.id == d.id && newd.name == d.name) {
+                  normals = newd.normals;
+                }
+              });
+            if (normals) {
+              normals.forEach(function(n) {
+                let nodeInfo = QDRService.management.topology.nodeInfo();
+                let links = nodeInfo[n.key]['router.link'];
+                let linkTypeIndex = links.attributeNames.indexOf('linkType');
+                let connectionIdIndex = links.attributeNames.indexOf('connectionId');
+                n.linkData = [];
+                links.results.forEach(function(link) {
+                  if (link[linkTypeIndex] === 'endpoint' && link[connectionIdIndex] === n.connectionId) {
+                    let l = {};
+                    let ll = QDRService.utilities.flatten(links.attributeNames, link);
+                    l.owningAddr = ll.owningAddr;
+                    l.dir = ll.linkDir;
+                    if (l.owningAddr && l.owningAddr.length > 2)
+                      if (l.owningAddr[0] === 'M')
+                        l.owningAddr = l.owningAddr.substr(2);
+                      else
+                        l.owningAddr = l.owningAddr.substr(1);
+
+                    l.deliveryCount = ll.deliveryCount;
+                    l.uncounts = QDRService.utilities.pretty(ll.undeliveredCount + ll.unsettledCount);
+                    l.adminStatus = ll.adminStatus;
+                    l.operStatus = ll.operStatus;
+                    l.identity = ll.identity;
+                    l.connectionId = ll.connectionId;
+                    l.nodeId = n.key;
+                    l.type = ll.type;
+                    l.name = ll.name;
+
+                    // TODO: remove this fake quiescing/reviving logic when the routers do the work
+                    initConnState(n.connectionId);
+                    if ($scope.quiesceState[n.connectionId].linkStates[l.identity])
+                      l.adminStatus = $scope.quiesceState[n.connectionId].linkStates[l.identity];
+                    if ($scope.quiesceState[n.connectionId].state == 'quiescing') {
+                      if (l.adminStatus === 'enabled') {
+                        // 25% chance of switching
+                        let chance = Math.floor(Math.random() * 2);
+                        if (chance == 1) {
+                          l.adminStatus = 'disabled';
+                          $scope.quiesceState[n.connectionId].linkStates[l.identity] = 'disabled';
+                        }
+                      }
+                    }
+                    if ($scope.quiesceState[n.connectionId].state == 'reviving') {
+                      if (l.adminStatus === 'disabled') {
+                        // 25% chance of switching
+                        let chance = Math.floor(Math.random() * 2);
+                        if (chance == 1) {
+                          l.adminStatus = 'enabled';
+                          $scope.quiesceState[n.connectionId].linkStates[l.identity] = 'enabled';
+                        }
+                      }
+                    }
+                    QDR.log.debug('pushing link state for ' + l.owningAddr + ' status: ' + l.adminStatus);
+
+                    n.linkData.push(l);
+                  }
+                });
+                $scope.multiData.push(n);
+                if (n.connectionId == $scope.connectionId)
+                  $scope.linkData = n.linkData;
+                initConnState(n.connectionId);
+                $scope.multiDetails.updateState(n);
+              });
+            }
+            $scope.$apply();
+
+            d3.select('#multiple_details')
+              .style({
+                height: ((normals.length + 1) * 30) + 40 + 'px',
+                'overflow-y': normals.length > 10 ? 'scroll' : 'hidden'
+              });
+          });
+        };
+        $scope.connectionsStyle = function () {
+          return {
+            height: ($scope.multiData.length * 30 + 40) + 'px'
+          };
+        };
+        $scope.linksStyle = function () {
+          return {
+            height: ($scope.linkData.length * 30 + 40) + 'px'
+          };
+        };
+        // register a notification function for when the topology is updated
+        QDRService.management.topology.addUpdatedAction('normalsStats', extendConnections);
+        // call the function that gets the links right now
+        extendConnections();
+        clearPopups();
+        let display = 'block';
+        if (d.normals.length === 1) {
+          display = 'none';
+          mouseY = mouseY - 20;
+        }
+        let rm = relativeMouse();
+        d3.select('#multiple_details')
+          .style({
+            display: display,
+            opacity: 1,
+            left: rm.left + 'px',
+            top: (rm.top - rm.offset.top) + 'px'
+          });
+        if (d.normals.length === 1) {
+          // simulate a click on the connection to popup the link details
+          QDRService.management.topology.ensureEntities(d.key, {entity: 'router.link', force: true}, function () {
+            $scope.multiDetails.showLinksList({entity: d});
+          });
+        }
+      };
+      var stopUpdateConnectionsGrid = function() {
+        QDRService.management.topology.delUpdatedAction('normalsStats');
+      };
+
+      var initConnState = function(id) {
+        if (!angular.isDefined($scope.quiesceState[id])) {
+          $scope.quiesceState[id] = {
+            state: 'enabled',
+            buttonText: 'Quiesce',
+            buttonDisabled: false,
+            linkStates: {}
+          };
+        }
+      };
+
+      function nextHop(thisNode, d, cb) {
+        if ((thisNode) && (thisNode != d)) {
+          let target = findNextHopNode(thisNode, d);
+          //QDR.log.debug("highlight link from node ");
+          //console.dump(nodeFor(selected_node.name));
+          //console.dump(target);
+          if (target) {
+            let hnode = nodeFor(thisNode.name);
+            let hlLink = linkFor(hnode, target);
+            //QDR.log.debug("need to highlight");
+            //console.dump(hlLink);
+            if (hlLink) {
+              if (cb) {
+                cb(hlLink, hnode, target);
+              } else {
+                hlLink['highlighted'] = true;
+                hnode['highlighted'] = true;
+              }
+            }
+            else
+              target = null;
+          }
+          nextHop(target, d, cb);
+        }
+        if (thisNode == d && !cb) {
+          let hnode = nodeFor(thisNode.name);
+          hnode['highlighted'] = true;
+        }
+      }
+
+      function hasChanged() {
+        // Don't update the underlying topology diagram if we are adding a new node.
+        // Once adding is completed, the topology will update automatically if it has changed
+        let nodeInfo = QDRService.management.topology.nodeInfo();
+        // don't count the nodes without connection info
+        let cnodes = Object.keys(nodeInfo).filter ( function (node) {
+          return (nodeInfo[node]['connection']);
+        });
+        let routers = nodes.filter( function (node) {
+          return node.nodeType === 'inter-router';
+        });
+        if (routers.length > cnodes.length) {
+          return -1;
+        }
+
+
+        if (cnodes.length != Object.keys(savedKeys).length) {
+          return cnodes.length > Object.keys(savedKeys).length ? 1 : -1;
+        }
+        // we may have dropped a node and added a different node in the same update cycle
+        for (let i=0; i<cnodes.length; i++) {
+          let key = cnodes[i];
+          // if this node isn't in the saved node list
+          if (!savedKeys.hasOwnProperty(key))
+            return 1;
+          // if the number of connections for this node chaanged
+          if (!nodeInfo[key]['connection'])
+            return -1;
+          if (nodeInfo[key]['connection'].results.length != savedKeys[key]) {
+            return -1;
+          }
+        }
+        return 0;
+      }
+
+      function saveChanged() {
+        savedKeys = {};
+        let nodeInfo = QDRService.management.topology.nodeInfo();
+        // save the number of connections per node
+        for (let key in nodeInfo) {
+          if (nodeInfo[key]['connection'])
+            savedKeys[key] = nodeInfo[key]['connection'].results.length;
+        }
+      }
+      // we are about to leave the page, save the node positions
+      $rootScope.$on('$locationChangeStart', function() {
+        //QDR.log.debug("locationChangeStart");
+        savePositions();
+      });
+      // When the DOM element is removed from the page,
+      // AngularJS will trigger the $destroy event on
+      // the scope
+      $scope.$on('$destroy', function() {
+        //QDR.log.debug("scope on destroy");
+        savePositions();
+        QDRService.management.topology.setUpdateEntities([]);
+        QDRService.management.topology.stopUpdating();
+        QDRService.management.topology.delUpdatedAction('normalsStats');
+        QDRService.management.topology.delUpdatedAction('topology');
+
+        d3.select('#SVG_ID').remove();
+        window.removeEventListener('resize', resize);
+        traffic.stop();
+      });
+
+      function handleInitialUpdate() {
+        // we only need to update connections during steady-state
+        QDRService.management.topology.setUpdateEntities(['connection']);
+        // we currently have all entities available on all routers
+        saveChanged();
+        initForceGraph();
+        // after the graph is displayed fetch all .router.node info. This is done so highlighting between nodes
+        // doesn't incur a delay
+        QDRService.management.topology.addUpdateEntities({entity: 'router.node', attrs: ['id','nextHop']});
+        // call this function every time a background update is done
+        QDRService.management.topology.addUpdatedAction('topology', function() {
+          let changed = hasChanged();
+          // there is a new node, we need to get all of it's entities before drawing the graph
+          if (changed > 0) {
+            QDRService.management.topology.delUpdatedAction('topology');
+            animate = true;
+            setupInitialUpdate();
+          } else if (changed === -1) {
+            // we lost a node (or a client), we can draw the new svg immediately
+            animate = false;
+            saveChanged();
+            let nodeInfo = QDRService.management.topology.nodeInfo();
+            initializeNodes(nodeInfo);
+
+            let unknowns = [];
+            initializeLinks(nodeInfo, unknowns);
+            if (unknowns.length > 0) {
+              resolveUnknowns(nodeInfo, unknowns);
+            }
+            else {
+              force.nodes(nodes).links(links).start();
+              restart();
+            }
+
+            //initForceGraph();
+          } else {
+            //QDR.log.debug("topology didn't change")
+          }
+
+        });
+      }
+
+      function setupInitialUpdate() {
+        // make sure all router nodes have .connection info. if not then fetch any missing info
+        QDRService.management.topology.ensureAllEntities(
+          //          [{entity: ".connection"}, {entity: ".router.lin.router.link", attrs: ["linkType","connectionId","linkDir"]}],
+          [{entity: 'connection'}],
+          //[{entity: ".connection"}],
+          handleInitialUpdate);
+      }
+      if (!QDRService.management.connection.is_connected()) {
+        // we are not connected. we probably got here from a bookmark or manual page reload
+        QDR.redirectWhenConnected($location, 'topology');
+        return;
+      }
+
+      let connectionPopupHTML = function (d) {
+        let left = d.left ? d.source : d.target;
+        // left is the connection with dir 'in'
+        let right = d.left ? d.target : d.source;
+        let onode = QDRService.management.topology.nodeInfo()[left.key];
+        let connSecurity = function (conn) {
+          if (!conn.isEncrypted)
+            return 'no-security';
+          if (conn.sasl === 'GSSAPI')
+            return 'Kerberos';
+          return conn.sslProto + '(' + conn.sslCipher + ')';
+        };
+        let connAuth = function (conn) {
+          if (!conn.isAuthenticated)
+            return 'no-auth';
+          let sasl = conn.sasl;
+          if (sasl === 'GSSAPI')
+            sasl = 'Kerberos';
+          else if (sasl === 'EXTERNAL')
+            sasl = 'x.509';
+          else if (sasl === 'ANONYMOUS')
+            return 'anonymous-user';
+          if (!conn.user)
+            return sasl;
+          return conn.user + '(' + sasl + ')';
+        };
+        let connTenant = function (conn) {
+          if (!conn.tenant) {
+            return '';
+          }
+          if (conn.tenant.length > 1)
+            return conn.tenant.replace(/\/$/, '');
+        };
+        // loop through all the connections for left, and find the one for right
+        let rightIndex = onode['connection'].results.findIndex( function (conn) {
+          return QDRService.utilities.valFor(onode['connection'].attributeNames, conn, 'container') === right.routerId;
+        });
+        if (rightIndex < 0) {
+          // we have a connection to a client/service
+          rightIndex = +left.connectionId;
+        }
+        if (isNaN(rightIndex)) {
+          // we have a connection to a console
+          rightIndex = +right.connectionId;
+        }
+        let HTML = '';
+        if (rightIndex >= 0) {
+          let conn = onode['connection'].results[rightIndex];
+          conn = QDRService.utilities.flatten(onode['connection'].attributeNames, conn);
+          HTML += '<table class="popupTable">';
+          HTML += ('<tr><td>Security</td><td>' + connSecurity(conn) + '</td></tr>');
+          HTML += ('<tr><td>Authentication</td><td>' + connAuth(conn) + '</td></tr>');
+          HTML += ('<tr><td>Tenant</td><td>' + connTenant(conn) + '</td></tr>');
+          HTML += '</table>';
+        }
+        return HTML;
+      };
+
+      animate = true;
+      setupInitialUpdate();
+      QDRService.management.topology.startUpdating(false);
+
+    }
+  ]);
+
+  return QDR;
+
+}(QDR || {}));
\ No newline at end of file


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