/* Copyright (c) 2012, Motorola Mobility, Inc All Rights Reserved. BSD License. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: - Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. - Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. - Neither the name of Motorola Mobility nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ // RDGE namespaces var RDGE = RDGE || {}; /* * Simple socket connection discovery and management */ RDGE.CreateSocket = function (url, listenList, connectedList, messageHandler, socketID, openHandler, closeHandler) { var ws = new WebSocket(url); ws.listenIndex = socketID; ws.onmessage = messageHandler; ws.connectedList = connectedList; ws.listenList = listenList; // make up a flag ws.rdge_isConnected = false; ws.rdge_tryDisconnect = false; if (openHandler) { ws.addEventListener("open", openHandler); } if (closeHandler) { ws.addEventListener("close", closeHandler); ws.addEventListener("error", closeHandler); } ws.onopen = function (evt) { var websocket = evt.srcElement; document.getElementById("socketConnection").innerHTML += "connected: " + websocket.URL + "
"; websocket.rdge_isConnected = true; websocket.connectedList.push(ws); // save the connected array index of this item ws.connectedIndex = websocket.connectedList.length - 1; }; ws.onerror = function (event) { window.console.log("error: " + event); } ws.onclose = function (evt) { var websocket = evt.srcElement; websocket.rdge_isConnected = false; // send disconnect message websocket.send("type=srv\nmsg=2\n"); // remove from connected sockets websocket.connectedList[websocket.connectedIndex, 1]; // re-open port for listening //websocket.listenList[websocket.listenIndex] = new WebSocket(websocket.URL.toString()); //document.getElementById("socketConnection").innerHTML += "disconnected: " + websocket.URL +"
"; }; return ws; }; // The DCHP range on Whitney 10.0.0.1 - 10.0.0.254 // add the connection Pool's to this list for auto polling RDGE.ConnPoll = function() { var len = RDGE.globals.poolList.length; for (var i = 0; i < len; ++i) { RDGE.globals.poolList[i].Poll(); } }; /* * manages a connection * @param base: base url minus the last octet (ie "ws://192.168.1.") * @param startAddr: the last octect of the beginning address range (ie 10.0.0.x where x is the value passed in for startAddr) * @param endAddr: the last octect of the end address range (ie 10.0.0.x where x is the value passed in for endAddr) * @param messageHandlerFunc: handle to onMessage function */ RDGE.ConnectionPool = funciton(base, startAddr, endAddr, messageHandlerFunc) { this.start = startAddr; this.end = endAddr; this.port = 38951; this.messageHandler = messageHandlerFunc; this.listenSockets = []; this.connectedSockets = []; this.openHandler = null; this.closeHandler = null; this.interval = null; this.Init = function (openHandler, closeHandler) { // empty out lists this.listenSockets = []; this.connectedSockets = []; this.openHandler = openHandler; this.closeHandler = closeHandler; var len = this.end - this.start; for (var i = 0; i < len; ++i) { var url = base + (this.start + i) + ":" + this.port + "/resourcePath"; var ws = CreateSocket(url, this.listenSockets, this.connectedSockets, this.messageHandler, i, this.openHandler, this.closeHandler); this.listenSockets.push(ws); } this.interval = setInterval(ConnPoll, 200); }; this.Shutdown = function () { if (this.interval != null) { clearInterval(this.interval); this.interval = null; } var len = this.connectedSockets.length; for (var i = 0; i < len; ++i) { // send disconnect message this.connectedSockets[i].send("type=srv\nmsg=2\n"); ; } }; this.Close = function (socket) { socket.rdge_tryDisconnect = true; }; this.Poll = function () { var len = this.end - this.start; for (var i = 0; i < len; ++i) { // re init the sockets to simulate broadcast if (this.listenSockets[i].readyState == 3/*CLOSING*/ || this.listenSockets[i].readyState == 2/*CLOSING*/ || this.listenSockets[i].rdge_tryDisconnect == true) { if (this.listenSockets[i].rdge_tryDisconnect) { document.getElementById("socketConnection").innerHTML += "graceful discon: " + this.listenSockets[i].URL + "
"; } this.listenSockets[i].rdge_tryDisconnect = false; var url = base + (this.start + i) + ":" + this.port + "/resourcePath"; this.listenSockets[i].close(); this.listenSockets[i] = CreateSocket(url, this.listenSockets, this.connectedSockets, this.messageHandler, i, this.openHandler, this.closeHandler); } } }; };