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/*
* Copyright 2015 Open Networking Laboratory
*
* Licensed 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.
*/
(function () {
var ws, flow,
nodes = [],
links = [],
nodeIndexes = {};
var width = 2400,
height = 2400;
var color = d3.scale.category20();
var force = d3.layout.force()
.charge(-820)
.linkDistance(50)
.size([width, height]);
// Process flow graph layout
function createNode(n) {
nodeIndexes[n.name] = nodes.push(n) - 1;
}
function createLink(e) {
e.source = nodeIndexes[e.src];
e.target = nodeIndexes[e.dst];
links.push(e);
}
// Returns the newly computed bounding box of the rectangle
function adjustRectToFitText(n) {
var text = n.select('text'),
box = text.node().getBBox();
text.attr('text-anchor', 'left')
.attr('y', 2)
.attr('x', 4);
// add padding
box.x -= 4;
box.width += 8;
box.y -= 2;
box.height += 4;
n.select("rect").attr(box);
}
function processFlow() {
var svg = d3.select("body").append("svg")
.attr("width", width)
.attr("height", height);
flow.steps.forEach(createNode);
flow.requirements.forEach(createLink);
force
.nodes(nodes)
.links(links)
.start();
var link = svg.selectAll(".link")
.data(links)
.enter().append("line")
.attr("class", "link")
.style("stroke-width", function(d) { return d.isSoft ? 1 : 2; });
var node = svg.selectAll(".node")
.data(nodes)
.enter().append("g")
.attr("class", "node")
.call(force.drag);
node.append("rect")
.attr({ rx: 5, ry:5, width:180, height:18 })
.style("fill", function(d) { return color(d.group); });
node.append("text").text( function(d) { return d.name; })
.attr({ dy:"1.1em", width:100, height:16, x:4, y:2 });
node.append("title")
.text(function(d) { return d.name; });
force.on("tick", function() {
link.attr("x1", function(d) { return d.source.x; })
.attr("y1", function(d) { return d.source.y; })
.attr("x2", function(d) { return d.target.x; })
.attr("y2", function(d) { return d.target.y; });
node.attr("transform", function(d) { return "translate(" + (d.x - 180/2) + "," + (d.y - 18/2) + ")"; });
});
}
// Web socket callbacks
function handleOpen() {
console.log('WebSocket open');
}
// Handles the specified (incoming) message using handler bindings.
function handleMessage(msg) {
console.log('rx: ', msg);
evt = JSON.parse(msg.data);
if (evt.event === 'progress') {
} else if (evt.event === 'log') {
} else if (evt.event === 'flow') {
flow = evt.payload;
processFlow();
}
}
function handleClose() {
console.log('WebSocket closed');
}
if (false) {
d3.json("data.json", function (error, data) {
flow = data;
processFlow();
});
return;
}
// Open the web-socket
ws = new WebSocket(document.location.href.replace('http:', 'ws:'));
if (ws) {
ws.onopen = handleOpen;
ws.onmessage = handleMessage;
ws.onclose = handleClose;
}
})();
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