| #!/usr/bin/env node |
| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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. |
| * |
| */ |
| |
| // Check if the environment is Node.js and if not log an error and exit. |
| if (typeof process === 'object' && typeof require === 'function') { |
| // In this example we also set the global variable PROTON_TOTAL_MEMORY in order |
| // to increase the virtual heap available to the emscripten compiled C runtime. |
| // It is not really necessary to do this for this application as the default |
| // value of 16777216 is fine, it is simply done here to illustrate how to do it. |
| PROTON_TOTAL_MEMORY = 50000000; |
| var proton = require("qpid-proton-messenger"); |
| |
| var address = "amqp://0.0.0.0"; |
| var subject = "UK.WEATHER"; |
| var msgtext = "Hello World!"; |
| var tracker = null; |
| var running = true; |
| |
| var message = new proton.Message(); |
| var messenger = new proton.Messenger(); |
| |
| // This is an asynchronous send, so we can't simply call messenger.put(message) |
| // at the end of the application as we would with a synchronous/blocking |
| // version, as the application would simply exit without actually sending. |
| // The following callback function (and messenger.setOutgoingWindow()) |
| // gives us a means to wait until the consumer has received the message before |
| // exiting. The recv.js example explicitly accepts messages it receives. |
| var pumpData = function() { |
| var status = messenger.status(tracker); |
| if (status != proton.Status.PENDING) { |
| if (running) { |
| messenger.stop(); |
| running = false; |
| } |
| } |
| |
| if (messenger.isStopped()) { |
| message.free(); |
| messenger.free(); |
| } |
| }; |
| |
| var args = process.argv.slice(2); |
| if (args.length > 0) { |
| if (args[0] === '-h' || args[0] === '--help') { |
| console.log("Usage: node send.js [options] [message]"); |
| console.log("Options:"); |
| console.log(" -a <addr> The target address [amqp[s]://domain[/name]] (default " + address + ")"); |
| console.log(" -s <subject> The message subject (default " + subject + ")"); |
| console.log("message A text string to send."); |
| process.exit(0); |
| } |
| |
| for (var i = 0; i < args.length; i++) { |
| var arg = args[i]; |
| if (arg.charAt(0) === '-') { |
| i++; |
| var val = args[i]; |
| if (arg === '-a') { |
| address = val; |
| } else if (arg === '-s') { |
| subject = val; |
| } |
| } else { |
| msgtext = arg; |
| } |
| } |
| } |
| |
| console.log("Address: " + address); |
| console.log("Subject: " + subject); |
| console.log("Content: " + msgtext); |
| |
| messenger.on('error', function(error) {console.log(error);}); |
| messenger.on('work', pumpData); |
| messenger.setOutgoingWindow(1024); // So we can track status of send message. |
| messenger.start(); |
| |
| message.setAddress(address); |
| message.setSubject(subject); |
| message.body = msgtext; |
| |
| tracker = messenger.put(message); |
| } else { |
| console.error("send.js should be run in Node.js"); |
| } |
| |