Simon Hunt | 3a6eec0 | 2015-02-09 21:16:43 -0800 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2015 Open Networking Laboratory |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | /* |
| 18 | ONOS GUI -- Topology Model Module. |
| 19 | Auxiliary functions for the model of the topology; that is, our internal |
| 20 | representations of devices, hosts, links, etc. |
| 21 | */ |
| 22 | |
| 23 | (function () { |
| 24 | 'use strict'; |
| 25 | |
| 26 | // injected refs |
| 27 | var $log, fs, rnd, api; |
| 28 | |
| 29 | var dim; // dimensions of layout, as [w,h] |
| 30 | |
| 31 | // configuration 'constants' |
| 32 | var defaultLinkType = 'direct', |
| 33 | nearDist = 15; |
| 34 | |
| 35 | |
| 36 | function coordFromLngLat(loc) { |
| 37 | var p = api.projection(); |
| 38 | return p ? p([loc.lng, loc.lat]) : [0, 0]; |
| 39 | } |
| 40 | |
| 41 | function lngLatFromCoord(coord) { |
| 42 | var p = api.projection(); |
| 43 | return p ? p.invert(coord) : [0, 0]; |
| 44 | } |
| 45 | |
| 46 | function positionNode(node, forUpdate) { |
| 47 | var meta = node.metaUi, |
| 48 | x = meta && meta.x, |
| 49 | y = meta && meta.y, |
| 50 | xy; |
| 51 | |
| 52 | // If we have [x,y] already, use that... |
| 53 | if (x && y) { |
| 54 | node.fixed = true; |
| 55 | node.px = node.x = x; |
| 56 | node.py = node.y = y; |
| 57 | return; |
| 58 | } |
| 59 | |
| 60 | var location = node.location, |
| 61 | coord; |
| 62 | |
| 63 | if (location && location.type === 'latlng') { |
| 64 | coord = coordFromLngLat(location); |
| 65 | node.fixed = true; |
| 66 | node.px = node.x = coord[0]; |
| 67 | node.py = node.y = coord[1]; |
| 68 | return true; |
| 69 | } |
| 70 | |
| 71 | // if this is a node update (not a node add).. skip randomizer |
| 72 | if (forUpdate) { |
| 73 | return; |
| 74 | } |
| 75 | |
| 76 | // Note: Placing incoming unpinned nodes at exactly the same point |
| 77 | // (center of the view) causes them to explode outwards when |
| 78 | // the force layout kicks in. So, we spread them out a bit |
| 79 | // initially, to provide a more serene layout convergence. |
| 80 | // Additionally, if the node is a host, we place it near |
| 81 | // the device it is connected to. |
| 82 | |
| 83 | function rand() { |
| 84 | return { |
| 85 | x: rnd.randDim(dim[0]), |
| 86 | y: rnd.randDim(dim[1]) |
| 87 | }; |
| 88 | } |
| 89 | |
| 90 | function near(node) { |
| 91 | return { |
| 92 | x: node.x + nearDist + rnd.spread(nearDist), |
| 93 | y: node.y + nearDist + rnd.spread(nearDist) |
| 94 | }; |
| 95 | } |
| 96 | |
| 97 | function getDevice(cp) { |
| 98 | var d = api.lookup[cp.device]; |
| 99 | return d || rand(); |
| 100 | } |
| 101 | |
| 102 | xy = (node.class === 'host') ? near(getDevice(node.cp)) : rand(); |
| 103 | angular.extend(node, xy); |
| 104 | } |
| 105 | |
| 106 | function mkSvgCls(dh, t, on) { |
| 107 | var ndh = 'node ' + dh, |
| 108 | ndht = t ? ndh + ' ' + t : ndh; |
| 109 | return on ? ndht + ' online' : ndht; |
| 110 | } |
| 111 | |
| 112 | function createDeviceNode(device) { |
| 113 | var node = device; |
| 114 | |
| 115 | // Augment as needed... |
| 116 | node.class = 'device'; |
| 117 | node.svgClass = mkSvgCls('device', device.type, device.online); |
| 118 | positionNode(node); |
| 119 | return node; |
| 120 | } |
| 121 | |
| 122 | function createHostNode(host) { |
| 123 | var node = host; |
| 124 | |
| 125 | // Augment as needed... |
| 126 | node.class = 'host'; |
| 127 | if (!node.type) { |
| 128 | node.type = 'endstation'; |
| 129 | } |
| 130 | node.svgClass = mkSvgCls('host', node.type); |
| 131 | positionNode(node); |
| 132 | return node; |
| 133 | } |
| 134 | |
| 135 | function createHostLink(host) { |
| 136 | var src = host.id, |
| 137 | dst = host.cp.device, |
| 138 | id = host.ingress, |
| 139 | lnk = linkEndPoints(src, dst); |
| 140 | |
| 141 | if (!lnk) { |
| 142 | return null; |
| 143 | } |
| 144 | |
| 145 | // Synthesize link ... |
| 146 | angular.extend(lnk, { |
| 147 | key: id, |
| 148 | class: 'link', |
| 149 | |
| 150 | type: function () { return 'hostLink'; }, |
| 151 | online: function () { |
| 152 | // hostlink target is edge switch |
| 153 | return lnk.target.online; |
| 154 | }, |
| 155 | linkWidth: function () { return 1; } |
| 156 | }); |
| 157 | return lnk; |
| 158 | } |
| 159 | |
| 160 | function createLink(link) { |
| 161 | var lnk = linkEndPoints(link.src, link.dst); |
| 162 | |
| 163 | if (!lnk) { |
| 164 | return null; |
| 165 | } |
| 166 | |
| 167 | angular.extend(lnk, { |
| 168 | key: link.id, |
| 169 | class: 'link', |
| 170 | fromSource: link, |
| 171 | |
| 172 | // functions to aggregate dual link state |
| 173 | type: function () { |
| 174 | var s = lnk.fromSource, |
| 175 | t = lnk.fromTarget; |
| 176 | return (s && s.type) || (t && t.type) || defaultLinkType; |
| 177 | }, |
| 178 | online: function () { |
| 179 | var s = lnk.fromSource, |
| 180 | t = lnk.fromTarget, |
| 181 | both = lnk.source.online && lnk.target.online; |
| 182 | return both && ((s && s.online) || (t && t.online)); |
| 183 | }, |
| 184 | linkWidth: function () { |
| 185 | var s = lnk.fromSource, |
| 186 | t = lnk.fromTarget, |
| 187 | ws = (s && s.linkWidth) || 0, |
| 188 | wt = (t && t.linkWidth) || 0; |
| 189 | return Math.max(ws, wt); |
| 190 | } |
| 191 | }); |
| 192 | return lnk; |
| 193 | } |
| 194 | |
| 195 | |
| 196 | function linkEndPoints(srcId, dstId) { |
| 197 | var srcNode = api.lookup[srcId], |
| 198 | dstNode = api.lookup[dstId], |
| 199 | sMiss = !srcNode ? missMsg('src', srcId) : '', |
| 200 | dMiss = !dstNode ? missMsg('dst', dstId) : ''; |
| 201 | |
| 202 | if (sMiss || dMiss) { |
| 203 | $log.error('Node(s) not on map for link:' + sMiss + dMiss); |
| 204 | //logicError('Node(s) not on map for link:\n' + sMiss + dMiss); |
| 205 | return null; |
| 206 | } |
| 207 | return { |
| 208 | source: srcNode, |
| 209 | target: dstNode, |
| 210 | x1: srcNode.x, |
| 211 | y1: srcNode.y, |
| 212 | x2: dstNode.x, |
| 213 | y2: dstNode.y |
| 214 | }; |
| 215 | } |
| 216 | |
| 217 | function missMsg(what, id) { |
| 218 | return '\n[' + what + '] "' + id + '" missing'; |
| 219 | } |
| 220 | |
| 221 | // ========================== |
| 222 | // Module definition |
| 223 | |
| 224 | angular.module('ovTopo') |
| 225 | .factory('TopoModelService', |
| 226 | ['$log', 'FnService', 'RandomService', |
| 227 | |
| 228 | function (_$log_, _fs_, _rnd_) { |
| 229 | $log = _$log_; |
| 230 | fs = _fs_; |
| 231 | rnd = _rnd_; |
| 232 | |
| 233 | function initModel(_api_, _dim_) { |
| 234 | api = _api_; |
| 235 | dim = _dim_; |
| 236 | } |
| 237 | |
| 238 | function newDim(_dim_) { |
| 239 | dim = _dim_; |
| 240 | } |
| 241 | |
| 242 | return { |
| 243 | initModel: initModel, |
| 244 | newDim: newDim, |
| 245 | |
| 246 | positionNode: positionNode, |
| 247 | createDeviceNode: createDeviceNode, |
| 248 | createHostNode: createHostNode, |
| 249 | createHostLink: createHostLink, |
| 250 | createLink: createLink, |
| 251 | coordFromLngLat: coordFromLngLat, |
| 252 | lngLatFromCoord: lngLatFromCoord, |
| 253 | } |
| 254 | }]); |
| 255 | }()); |