SHow dragged node on top and refactor

frontend/src/state/selectors.js

@@ -126,17 +126,8 @@ const metricByInterval = (data = [], {
     const q1 = statistics.quantile(data, 0.25);
     const median = statistics.median(data);
     const q3 = statistics.quantile(data, 0.75);
-
-    const iqr = q3-q1;
-    const outlierMultiplier = 1.5;
-    let max = statistics.max(data);
-    if(max < q3 + iqr*outlierMultiplier) {
-      max = q3;
-    }
-    let min = statistics.min(data);
-    if(min > q1 - iqr*outlierMultiplier){
-      min = q3;
-    }
+    const max = statistics.max(data);
+    const min = statistics.min(data);
 
     return {
       start: sample.start.valueOf(),

ui/src/components/topology/graph-link/arrow.js

@@ -0,0 +1,53 @@
+import { Baseline } from '../../../shared/composers';
+import React from 'react';
+import {
+  GraphLinkCircle,
+  GraphLinkArrowLine
+} from './shapes';
+
+const GraphLinkArrow = ({
+  data,
+  index
+}) => {
+
+  const {
+    targetPosition,
+    arrowAngle
+  } = data;
+
+  return (
+    <g
+      transform={
+        // eslint-disable-next-line max-len
+        `translate(${targetPosition.x}, ${targetPosition.y}) rotate(${arrowAngle})`
+      }
+    >
+      <GraphLinkCircle
+        cx={0}
+        cy={0}
+        r={9}
+      />
+      <GraphLinkArrowLine
+        x1={-1}
+        x2={2}
+        y1={-3}
+        y2={0}
+      />
+      <GraphLinkArrowLine
+        x1={-1}
+        x2={2}
+        y1={3}
+        y2={0}
+      />
+    </g>
+  );
+};
+
+GraphLinkArrow.propTypes = {
+  data: React.PropTypes.object.isRequired,
+  index: React.PropTypes.number
+};
+
+export default Baseline(
+  GraphLinkArrow
+);

ui/src/components/topology/graph-link/functions.js

@@ -0,0 +1,100 @@
+import Constants from '../constants';
+
+const getAngleFromPoints = (source, target) => {
+
+  const lineAngle = Math.atan2(target.y-source.y, target.x - source.x);
+  const lineAngleDeg = lineAngle*180/Math.PI;
+  const zeroToThreeSixty = lineAngleDeg < 0 ? 360 + lineAngleDeg : lineAngleDeg;
+
+  return zeroToThreeSixty;
+};
+
+const getPosition = (angle, positions, position, noCorners=false) => {
+  const positionIndex = noCorners ?
+    Math.round(angle/90)*2 : Math.round(angle/45);
+  const offsetPosition = positions[positionIndex];
+  return {
+    id: offsetPosition.id,
+    x: position.x + offsetPosition.x,
+    y: position.y + offsetPosition.y
+  };
+};
+
+const getPositions = (rect, halfCorner=0) => ([{
+  id: 'r',
+  x: rect.right,
+  y: 0
+}, {
+  id: 'br',
+  x: rect.right - halfCorner,
+  y: rect.bottom - halfCorner
+}, {
+  id: 'b',
+  x: 0,
+  y: rect.bottom
+}, {
+  id: 'bl',
+  x: rect.left + halfCorner,
+  y: rect.bottom - halfCorner
+}, {
+  id: 'l',
+  x: rect.left,
+  y: 0
+}, {
+  id: 'tl',
+  x: rect.left + halfCorner,
+  y: rect.top + halfCorner
+}, {
+  id: 't',
+  x: 0,
+  y: rect.top
+}, {
+  id: 'tr',
+  x: rect.right- halfCorner,
+  y: rect.top + halfCorner
+},{
+  id: 'r',
+  x: rect.right,
+  y: 0
+}]);
+
+const getRect = (data) => {
+  return data.children ?
+    Constants.nodeRectWithChildren :
+    Constants.nodeRect;
+};
+
+const calculateLineLayout = ({
+  source,
+  target
+}) => {
+  // actually, this will need to be got dynamically, in case them things are different sizes
+  // yeah right, now you'll get to do exactly that
+
+  const sourceRect = getRect(source);
+  const targetRect= getRect(target);
+
+  const halfCorner = 2;
+
+  const sourcePositions = getPositions(sourceRect, halfCorner);
+  const sourceAngle = getAngleFromPoints(source, target);
+  const sourcePosition = getPosition(sourceAngle, sourcePositions, source);
+
+  const targetPositions = getPositions(targetRect, halfCorner);
+  const targetAngle = getAngleFromPoints(target, sourcePosition);
+  const targetPosition = getPosition(targetAngle, targetPositions, target); //, true);
+
+  const arrowAngle = getAngleFromPoints(sourcePosition, targetPosition);
+
+  return {
+    source,
+    target,
+    sourcePosition,
+    targetPosition,
+    arrowAngle
+  };
+};
+
+export {
+  calculateLineLayout
+};

ui/src/components/topology/graph-link/index.js

@@ -1,143 +1,32 @@
 import { Baseline } from '../../../shared/composers';
-import Constants from '../constants';
 import React from 'react';
 import {
-  GraphLinkLine,
-  GraphLinkCircle,
-  GraphLinkArrow
+  GraphLinkLine
 } from './shapes';
 
-const getAngleFromPoints = (source, target) => {
-
-  const lineAngle = Math.atan2(target.y-source.y, target.x - source.x);
-  const lineAngleDeg = lineAngle*180/Math.PI;
-  const zeroToThreeSixty = lineAngleDeg < 0 ? 360 + lineAngleDeg : lineAngleDeg;
-
-  return zeroToThreeSixty;
-};
-
-const getPosition = (angle, positions, position, noCorners=false) => {
-  const positionIndex = noCorners ?
-    Math.round(angle/90)*2 : Math.round(angle/45);
-  const offsetPosition = positions[positionIndex];
-  return {
-    id: offsetPosition.id,
-    x: position.x + offsetPosition.x,
-    y: position.y + offsetPosition.y
-  };
-};
-
-const getPositions = (rect, halfCorner=0) => ([{
-  id: 'r',
-  x: rect.right,
-  y: 0
-}, {
-  id: 'br',
-  x: rect.right - halfCorner,
-  y: rect.bottom - halfCorner
-}, {
-  id: 'b',
-  x: 0,
-  y: rect.bottom
-}, {
-  id: 'bl',
-  x: rect.left + halfCorner,
-  y: rect.bottom - halfCorner
-}, {
-  id: 'l',
-  x: rect.left,
-  y: 0
-}, {
-  id: 'tl',
-  x: rect.left + halfCorner,
-  y: rect.top + halfCorner
-}, {
-  id: 't',
-  x: 0,
-  y: rect.top
-}, {
-  id: 'tr',
-  x: rect.right- halfCorner,
-  y: rect.top + halfCorner
-},{
-  id: 'r',
-  x: rect.right,
-  y: 0
-}]);
-
-const getRect = (data) => {
-  return data.children ?
-    Constants.nodeRectWithChildren :
-    Constants.nodeRect;
-};
-
 const GraphLink = ({
   data,
   index
 }) => {
 
   const {
-    source,
-    target
+    sourcePosition,
+    targetPosition
   } = data;
 
-  // actually, this will need to be got dynamically, in case them things are different sizes
-  // yeah right, now you'll get to do exactly that
-
-  const sourceRect = getRect(source);
-  const targetRect= getRect(target);
-
-  const halfCorner = 2;
-
-  const sourcePositions = getPositions(sourceRect, halfCorner);
-  const sourceAngle = getAngleFromPoints(source, target);
-  const sourcePosition = getPosition(sourceAngle, sourcePositions, source);
-
-  const targetPositions = getPositions(targetRect, halfCorner);
-  const targetAngle = getAngleFromPoints(target, sourcePosition);
-  const targetPosition = getPosition(targetAngle, targetPositions, target); //, true);
-
-  const arrowAngle = getAngleFromPoints(sourcePosition, targetPosition);
-
   return (
-    <g>
-      <GraphLinkLine
-        x1={sourcePosition.x}
-        x2={targetPosition.x}
-        y1={sourcePosition.y}
-        y2={targetPosition.y}
-      />
-      <g
-        transform={
-          // eslint-disable-next-line max-len
-          `translate(${targetPosition.x}, ${targetPosition.y}) rotate(${arrowAngle})`
-        }
-      >
-        <GraphLinkCircle
-          cx={0}
-          cy={0}
-          r={9}
-        />
-        <GraphLinkArrow
-          x1={-1}
-          x2={2}
-          y1={-3}
-          y2={0}
-        />
-        <GraphLinkArrow
-          x1={-1}
-          x2={2}
-          y1={3}
-          y2={0}
-        />
-      </g>
-    </g>
+    <GraphLinkLine
+      x1={sourcePosition.x}
+      x2={targetPosition.x}
+      y1={sourcePosition.y}
+      y2={targetPosition.y}
+    />
   );
 };
 
 GraphLink.propTypes = {
   data: React.PropTypes.object.isRequired,
-  index: React.PropTypes.number.isRequired
+  index: React.PropTypes.number
 };
 
 export default Baseline(

ui/src/components/topology/graph-link/shapes.js

@@ -12,7 +12,7 @@ export const GraphLinkCircle = styled.circle`
   stroke-width: 1.5;
 `;
 
-export const GraphLinkArrow = styled.line`
+export const GraphLinkArrowLine = styled.line`
   stroke: ${colors.base.white};
   stroke-width: 2;
   stroke-linecap: round;

ui/src/components/topology/graph-node/index.js

@@ -67,7 +67,7 @@ const GraphNode = ({
 
   const onStart = (evt) => {
     evt.preventDefault();
-    onDragStart(evt, data.id);
+    onDragStart(evt, data.uuid);
   };
 
   const nodeRectEvents = connected ? {

ui/src/components/topology/graph-simulation.js

@@ -14,6 +14,16 @@ const rectRadius = (size) => {
   return Math.round(hypotenuse(width, height)/2);
 };
 
+const forcePlayAnimation = (simulation, animationTicks) => {
+  const n = Math.ceil(
+    Math.log(
+      simulation.alphaMin()) / Math.log(
+      1 - simulation.alphaDecay())) - animationTicks;
+  for (var i = 0; i < n; ++i) {
+    simulation.tick();
+  }
+};
+
 const createLinks = (services) =>
   services.reduce((acc, service, index) =>
     service.connections ?
@@ -28,13 +38,12 @@ const createLinks = (services) =>
 const createSimulation = (
   services,
   svgSize,
-  onTick,
-  onEnd
+  animationTicks = 0
 ) => {
   // This is not going to work given that as well as the d3 layout stuff, other things might be at play too
   // We should pass two objects to the components - one for positioning and one for data
   const nodes = services.map((service, index) => ({
-    id: service.uuid,
+    uuid: service.uuid,
     index: index
   }));
 
@@ -47,15 +56,17 @@ const createSimulation = (
 
   const nodeRadius = rectRadius(Constants.nodeSizeWithChildren);
 
+  const simulation = forceSimulation(nodes)
+    .force('link', forceLink(links).id(d => d.uuid))
+    .force('collide', forceCollide(nodeRadius))
+    .force('center', forceCenter(width/2, height/2));
+
+  forcePlayAnimation(simulation, animationTicks);
+
   return ({
-    simulation: forceSimulation(nodes)
-      .force('link', forceLink(links).id(d => d.id))
-      .force('collide', forceCollide(nodeRadius))
-      .force('center', forceCenter(width/2, height/2))
-      .on('tick', onTick)
-      .on('end', onEnd),
-    nodes: nodes,
-    links: links
+    nodes,
+    links,
+    simulation
   });
 };
 

ui/src/components/topology/story-helper.js

@@ -4,7 +4,7 @@ import { Baseline } from '../../shared/composers';
 import Input from '../form/input';
 import Select from '../form/select';
 import { TopologyGraph } from './';
-import data from './data';
+import data from './wp-data';
 import React from 'react';
 
 const StyledForm = styled.form`

ui/src/components/topology/story.js

@@ -6,11 +6,16 @@ import README from './readme.md';
 
 import StoryHelper from './story-helper';
 import GraphNode  from './graph-node';
+import TopologyGraph from './topology-graph';
+import data from './big-data';
 
 storiesOf('Topology', module)
-.add('5 services', withReadme(README, () => (
+.add('Wordpress example', withReadme(README, () => (
   <StoryHelper />
 )))
+.add('Many services example', withReadme(README, () => (
+  <TopologyGraph services={data} />
+)))
 .add('Consul', withReadme(README, () => (
   <svg width={180} height={159}>
     <GraphNode

ui/src/components/topology/topology-graph.js

@@ -1,105 +1,56 @@
+import React from 'react';
 import styled from 'styled-components';
 import { Baseline } from '../../shared/composers';
-import {
-  createSimulation//,
-  //updateSimulation
-} from './graph-simulation';
 import Constants from './constants';
+
+import {
+  createSimulation
+} from './graph-simulation';
+
+import {
+  calculateLineLayout
+} from './graph-link/functions';
+
 import GraphNode from './graph-node';
 import GraphLink from './graph-link';
-import React from 'react';
+import GraphLinkArrow from './graph-link/arrow';
+
 
 const StyledSvg = styled.svg`
   width: 100%;
   height: 1400px;
 `;
 
-let dragInfo = {
-  dragging: false,
-  nodeId: null,
-  position: null
-};
-
 class TopologyGraph extends React.Component {
 
   componentWillMount() {
-    const services = this.props.services.reduce((acc, service, index) => {
-      if(service.id !== 'consul') acc.push(service);
-      return acc;
-    }, []);
 
+    const services = this.getServicesWithoutConsul();
     const svgSize = this.getSvgSize();
-    const simulationData = createSimulation(
-      services,
-      svgSize//,
-      //() => this.forceUpdate(),
-      //() => this.forceUpdate()
-    );
-
-    const simulation = simulationData.simulation;
-
-    const n = Math.ceil(
-      Math.log(
-        simulation.alphaMin()) / Math.log(
-        1 - simulation.alphaDecay()));
-    for (var i = 0; i < n; ++i) {
-      simulation.tick();
-    }
-
-    this.setState(simulationData);
-  }
-
-  /*componentWillReceiveProps(nextProps) {
-    // either, we'll have more services
-    // or, we'll have less services
-    // or, data of services had changed =>
-    //  do shallow check on objects and links, if no change, don't do rerender
-    //  otherwise, redo them bitches = by what I mean to update the simulation
-    //  try freezing exisiting ones... then adding another
 
     const {
       nodes,
-      links
-    } = this.state;
+      links,
+      simulation
+    } = createSimulation(
+      services,
+      svgSize
+    );
 
-    const services = nextProps.services.reduce((acc, service, index) => {
+    this.setState({
+      nodes,
+      links,
+      simulation
+    });
+  }
+
+  getServicesWithoutConsul() {
+
+    return this.props.services.reduce((acc, service, index) => {
       if(service.id !== 'consul') acc.push(service);
       return acc;
     }, []);
-    // TODO this here means we'll need to evaluate whether to we have more links!
-
-    // this is tmp for the compare above
-    if(services !== nodes.length) {
-      const simulation = this.state.simulation;
-      const nextSimulationData = updateSimulation(
-        simulation,
-        services,
-        nodes,
-        links,
-        svgSize,
-        () => this.forceUpdate(),
-        () => this.forceUpdate()
-      );
-
-      const nextSimulation = nextSimulationData.simulation;
-      // console.log('nextSimulationData.nodes = ', nextSimulationData.nodes);
-
-      const n = Math.ceil(
-        Math.log(
-          nextSimulation.alphaMin()) / Math.log(
-          1 - nextSimulation.alphaDecay()));
-      for (var i = 0; i < n; ++i) {
-        nextSimulation.tick();
-      }
-
-      //this.state.simulation.nodes().forEach((node, index) => {
-      //  delete node.fx;
-      //  delete node.fy;
-      //});
-
-      this.setState(nextSimulationData);
-    }
-  }*/
+  }
 
   getSvgSize() {
     if(document.getElementById('topology-svg')) {
@@ -116,7 +67,7 @@ class TopologyGraph extends React.Component {
     };
   }
 
-  constrain(x, y, children=false) {
+  constrainNodePosition(x, y, children=false) {
     const svgSize = this.getSvgSize();
 
     const nodeRect = children ?
@@ -142,6 +93,40 @@ class TopologyGraph extends React.Component {
     };
   }
 
+  findNode(nodeUuid) {
+
+    return this.state.nodes.reduce((acc, simNode, index) =>
+      simNode.uuid === nodeUuid ? simNode : acc, {});
+  }
+
+  getConsulNodePosition() {
+
+    const svgSize = this.getSvgSize();
+    const x = svgSize.width - Constants.nodeSize.width;
+    return {
+      x,
+      y: 0
+    };
+  }
+
+  getConstrainedNodePosition(nodeUuid, children=false) {
+    const node = this.findNode(nodeUuid);
+    return this.constrainNodePosition(node.x, node.y, children);
+  }
+
+  findNodeData(nodesData, nodeUuid) {
+    return nodesData.reduce((acc, nodeData, index) =>
+      nodeData.uuid === nodeUuid ? nodeData : acc, {});
+  }
+
+  setDragInfo(dragging, nodeUuid=null, position={}) {
+    this.dragInfo = {
+      dragging,
+      nodeUuid,
+      position
+    };
+  }
+
   render() {
 
     const {
@@ -154,55 +139,42 @@ class TopologyGraph extends React.Component {
       links
     } = this.state;
 
-    const simNode = (nodeId) =>
-      nodes.reduce((acc, simNode, index) =>
-        simNode.id === nodeId ? simNode : acc, {});
-
-    const svgSize = this.getSvgSize();
     const nodesData = services.map((service, index) => {
-      const sNode = service.id === 'consul' ? {
-        x: svgSize.width - Constants.nodeSize.width,
-        y: 0
-      } : simNode(service.uuid);
-
-      const constrained = {
-        ...sNode,
-        ...this.constrain(sNode.x, sNode.y, service.children)
-      };
+      const nodePosition = service.id === 'consul' ?
+      this.getConsulNodePosition() :
+      this.getConstrainedNodePosition(service.uuid, service.children);
 
       return ({
         ...service,
-        ...constrained
+        ...nodePosition
       });
     });
 
-    const nodeData = (nodeId) =>
-      nodesData.reduce((acc, nodeData, index) =>
-        nodeData.id === nodeId ? nodeData : acc, {});
     // TODO links will need to know whether a service has children
     // if it does, the height of it will be different
     const linksData = links.map((link, index) => ({
-      source: nodeData(link.source.id),
-      target: nodeData(link.target.id)
-    }));
+      source: this.findNodeData(nodesData, link.source.uuid),
+      target: this.findNodeData(nodesData, link.target.uuid)
+    })).map((linkData, index) => calculateLineLayout(linkData, index ));
 
     const onDragStart = (evt, nodeId) => {
       // it's this node's position that we'll need to update
-      dragInfo.dragging = true;
-      dragInfo.nodeId = nodeId;
 
       const x = evt.changedTouches ? evt.changedTouches[0].pageX : evt.clientX;
       const y = evt.changedTouches ? evt.changedTouches[0].pageY : evt.clientY;
 
-      dragInfo.position = {
-        x,
-        y
-      };
+      this.setDragInfo(
+        true,
+        nodeId,
+        {
+          x,
+          y
+        }
+      );
     };
 
     const onDragMove = (evt) => {
-
-      if ( dragInfo.dragging ) {
+      if ( this.dragInfo && this.dragInfo.dragging ) {
 
         const x = evt.changedTouches
           ? evt.changedTouches[0].pageX
@@ -212,12 +184,12 @@ class TopologyGraph extends React.Component {
           : evt.clientY;
 
         const offset = {
-          x: x - dragInfo.position.x,
-          y: y - dragInfo.position.y
+          x: x - this.dragInfo.position.x,
+          y: y - this.dragInfo.position.y
         };
 
         const dragNodes = nodes.map((simNode, index) => {
-          if ( simNode.id === dragInfo.nodeId ) {
+          if ( simNode.uuid === this.dragInfo.nodeUuid ) {
             return ({
               ...simNode,
               x: simNode.x + offset.x,
@@ -233,25 +205,25 @@ class TopologyGraph extends React.Component {
           nodes: dragNodes
         });
 
-        dragInfo.position = {
-          x,
-          y
-        };
+        this.setDragInfo(
+          true,
+          this.dragInfo.nodeUuid,
+          {
+            x,
+            y
+          }
+        );
       }
     };
 
     const onDragEnd = (evt) => {
-      dragInfo = {
-        dragging: false,
-        nodeId: null,
-        position: {}
-      };
+      this.setDragInfo(false);
     };
 
     const onTitleClick = (serviceUUID) =>
       this.props.onNodeTitleClick(serviceUUID);
 
-    const renderedNodes = nodesData.map((n, index) => (
+    const renderedNode = (n, index) => (
       <GraphNode
         key={index}
         data={n}
@@ -261,15 +233,54 @@ class TopologyGraph extends React.Component {
         onQuickActions={onQuickActions}
         connected={n.id !== 'consul'}
       />
-    ));
+    );
 
-    const renderedLinks = linksData.map((l, index) => (
+    const renderedLink = (l, index) => (
       <GraphLink
         key={index}
         data={l}
         index={index}
       />
-    ));
+    );
+
+    const renderedLinkArrow = (l, index) => (
+      <GraphLinkArrow
+        key={index}
+        data={l}
+        index={index}
+      />
+    );
+
+    const renderedNodes = this.dragInfo && this.dragInfo.dragging ?
+      nodesData.filter((n, index) => n.uuid !== this.dragInfo.nodeUuid)
+        .map((n, index) => renderedNode(n, index)) :
+      nodesData.map((n, index) => renderedNode(n, index));
+
+    const renderedLinks = linksData.map((l, index) => renderedLink(l, index));
+
+    const renderedLinkArrows = this.dragInfo && this.dragInfo.dragging ?
+    linksData.filter((l, index) => l.target.uuid !== this.dragInfo.nodeUuid)
+      .map((l, index) => renderedLinkArrow(l, index)) :
+    linksData.map((l, index) => renderedLinkArrow(l, index));
+
+    const dragNode = !this.dragInfo || !this.dragInfo.dragging ? null :
+      renderedNode(
+        nodesData.reduce((dragNode, n, index) => {
+          if(n.uuid === this.dragInfo.nodeUuid) {
+            return n;
+          }
+          return dragNode;
+        }, {}));
+
+    const dragLinkArrow = !this.dragInfo || !this.dragInfo.dragging ||
+      renderedLinkArrows.length === renderedLinks.length ? null :
+      renderedLinkArrow(
+        linksData.reduce((dragLinkArrow, l, index) => {
+          if(l.target.uuid === this.dragInfo.nodeUuid) {
+            return l;
+          }
+          return dragLinkArrow;
+        }, {}));
 
     return (
       <StyledSvg
@@ -286,6 +297,15 @@ class TopologyGraph extends React.Component {
         <g>
           {renderedLinks}
         </g>
+        <g>
+          {renderedLinkArrows}
+        </g>
+        <g>
+          {dragNode}
+        </g>
+        <g>
+          {dragLinkArrow}
+        </g>
       </StyledSvg>
     );
   }