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author | Timoney, Daniel (dt5972) <dtimoney@att.com> | 2017-02-15 10:37:53 -0500 |
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committer | Timoney, Daniel (dt5972) <dtimoney@att.com> | 2017-02-15 10:40:37 -0500 |
commit | 324ee36fe31763e507b422ab0a88e4230045e205 (patch) | |
tree | d0b04520f6657601c918ce63fd27575977624187 /dgbuilder/red/nodes/Node.js | |
parent | f0c97e8db427481e28c0a16b789bc73801b35e47 (diff) |
Initial commit for OpenECOMP SDN-C OA&M
Change-Id: I7ab579fd0d206bf356f36d52dcdf4f71f1fa2680
Signed-off-by: Timoney, Daniel (dt5972) <dtimoney@att.com>
Former-commit-id: 2a9f0edd09581f907e62ec4689b5ac94dd5382ba
Diffstat (limited to 'dgbuilder/red/nodes/Node.js')
-rw-r--r-- | dgbuilder/red/nodes/Node.js | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/dgbuilder/red/nodes/Node.js b/dgbuilder/red/nodes/Node.js new file mode 100644 index 00000000..0e6fc525 --- /dev/null +++ b/dgbuilder/red/nodes/Node.js @@ -0,0 +1,147 @@ +/** + * Copyright 2014 IBM Corp. + * + * 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. + **/ + +var util = require("util"); +var EventEmitter = require("events").EventEmitter; +var clone = require("clone"); +var when = require("when"); + +var flows = require("./flows"); +var comms = require("../comms"); + +function Node(n) { + this.id = n.id; + flows.add(this); + this.type = n.type; + if (n.name) { + this.name = n.name; + } + this.wires = n.wires||[]; +} + +util.inherits(Node,EventEmitter); + +Node.prototype._on = Node.prototype.on; + +Node.prototype.on = function(event,callback) { + var node = this; + if (event == "close") { + if (callback.length == 1) { + this.close = function() { + return when.promise(function(resolve) { + callback.call(node,function() { + resolve(); + }); + }); + } + } else { + this.close = callback; + } + } else { + this._on(event,callback); + } +} + +Node.prototype.close = function() { +} + +Node.prototype.send = function(msg) { + // instanceof doesn't work for some reason here + if (msg == null) { + return; + } else if (!util.isArray(msg)) { + msg = [msg]; + } + for (var i=0;i<this.wires.length;i++) { + var wires = this.wires[i]; + if (i < msg.length) { + if (msg[i] != null) { + var msgs = msg[i]; + if (!util.isArray(msg[i])) { + msgs = [msg[i]]; + } + //if (wires.length == 1) { + // // Single recipient, don't need to clone the message + // var node = flows.get(wires[0]); + // if (node) { + // for (var k in msgs) { + // var mm = msgs[k]; + // node.receive(mm); + // } + // } + //} else { + // Multiple recipients, must send message copies + for (var j=0;j<wires.length;j++) { + var node = flows.get(wires[j]); + if (node) { + for (var k=0;k<msgs.length;k++) { + var mm = msgs[k]; + // Temporary fix for #97 + // TODO: remove this http-node-specific fix somehow + var req = mm.req; + var res = mm.res; + delete mm.req; + delete mm.res; + var m = clone(mm); + if (req) { + m.req = req; + mm.req = req; + } + if (res) { + m.res = res; + mm.res = res; + } + node.receive(m); + } + } + } + //} + } + } + } +} + +Node.prototype.receive = function(msg) { + this.emit("input",msg); +} + +function log_helper(self, level, msg) { + var o = {level:level, id:self.id, type:self.type, msg:msg}; + if (self.name) { + o.name = self.name; + } + self.emit("log",o); +} + +Node.prototype.log = function(msg) { + log_helper(this, 'log', msg); +} + +Node.prototype.warn = function(msg) { + log_helper(this, 'warn', msg); +} + +Node.prototype.error = function(msg) { + log_helper(this, 'error', msg); +} + +/** + * status: { fill:"red|green", shape:"dot|ring", text:"blah" } + */ +Node.prototype.status = function(status) { + comms.publish("status/"+this.id,status,true); +} +module.exports = Node; |