├── gradle └── wrapper │ ├── gradle-wrapper.jar │ └── gradle-wrapper.properties ├── grails-app ├── init │ ├── BootStrap.groovy │ └── com │ │ └── objectpartners │ │ └── plummer │ │ ├── Application.groovy │ │ └── SecurityConfiguration.groovy ├── conf │ ├── spring │ │ └── resources.groovy │ ├── logback.groovy │ └── application.yml ├── controllers │ ├── UrlMappings.groovy │ └── com │ │ └── objectpartners │ │ └── plummer │ │ ├── FormMessageController.groovy │ │ └── ChatController.groovy ├── assets │ ├── stylesheets │ │ ├── application.css │ │ └── main.css │ └── javascripts │ │ ├── application.js │ │ └── jquery-2.2.0.min.js ├── views │ ├── formMessage │ │ └── index.gsp │ └── index.gsp └── jobs │ └── com │ └── objectpartners │ └── plummer │ ├── PrivateChatMessageJob.groovy │ └── StockQuoteJob.groovy ├── gradle.properties ├── .gitignore ├── LICENSE ├── gradlew.bat ├── README.md └── gradlew /gradle/wrapper/gradle-wrapper.jar: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/mike-plummer/Grails_WebSockets/HEAD/gradle/wrapper/gradle-wrapper.jar -------------------------------------------------------------------------------- /grails-app/init/BootStrap.groovy: -------------------------------------------------------------------------------- 1 | class BootStrap { 2 | 3 | def init = { servletContext -> 4 | } 5 | def destroy = { 6 | } 7 | } 8 | -------------------------------------------------------------------------------- /gradle.properties: -------------------------------------------------------------------------------- 1 | grailsVersion=3.2.9 2 | assetPipelineVersion=3.2.1 3 | assetPipelineGradleVersion=2.14.3 4 | grailsSpringWebsocketVersion=2.3.0 5 | quartzVersion=2.0.12 6 | -------------------------------------------------------------------------------- /grails-app/conf/spring/resources.groovy: -------------------------------------------------------------------------------- 1 | import com.objectpartners.plummer.SecurityConfiguration 2 | 3 | // Place your Spring DSL code here 4 | beans = { 5 | webSecurityConfiguration(SecurityConfiguration) 6 | } 7 | -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.properties: -------------------------------------------------------------------------------- 1 | #Tue Jul 25 13:55:50 CDT 2017 2 | distributionBase=GRADLE_USER_HOME 3 | distributionPath=wrapper/dists 4 | zipStoreBase=GRADLE_USER_HOME 5 | zipStorePath=wrapper/dists 6 | distributionUrl=https\://services.gradle.org/distributions/gradle-3.5.1-bin.zip 7 | -------------------------------------------------------------------------------- /grails-app/init/com/objectpartners/plummer/Application.groovy: -------------------------------------------------------------------------------- 1 | package websockets 2 | 3 | import grails.boot.GrailsApp 4 | import grails.boot.config.GrailsAutoConfiguration 5 | 6 | class Application extends GrailsAutoConfiguration { 7 | static void main(String[] args) { 8 | GrailsApp.run(Application) 9 | } 10 | } -------------------------------------------------------------------------------- /grails-app/controllers/UrlMappings.groovy: -------------------------------------------------------------------------------- 1 | class UrlMappings { 2 | 3 | static mappings = { 4 | "/$controller/$action?/$id?(.$format)?"{ 5 | constraints { 6 | // apply constraints here 7 | } 8 | } 9 | 10 | "/"(view:"/index") 11 | "/secure"(view:"/secure") 12 | } 13 | } 14 | -------------------------------------------------------------------------------- /grails-app/assets/stylesheets/application.css: -------------------------------------------------------------------------------- 1 | /* 2 | * This is a manifest file that'll be compiled into application.css, which will include all the files 3 | * listed below. 4 | * 5 | * Any CSS file within this directory can be referenced here using a relative path. 6 | * 7 | * You're free to add application-wide styles to this file and they'll appear at the top of the 8 | * compiled file, but it's generally better to create a new file per style scope. 9 | * 10 | *= require main 11 | *= require_self 12 | */ 13 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | # web application files 2 | /web-app/WEB-INF/classes 3 | 4 | # default HSQL database files for production mode 5 | /prodDb.* 6 | 7 | # general HSQL database files 8 | *Db.properties 9 | *Db.script 10 | 11 | # logs 12 | /stacktrace.log 13 | /test/reports 14 | /logs 15 | 16 | # project release file 17 | /*.war 18 | 19 | # plugin release files 20 | /*.zip 21 | /plugin.xml 22 | 23 | # older plugin install locations 24 | /plugins 25 | /web-app/plugins 26 | 27 | # "temporary" build files 28 | /target 29 | 30 | *.iml 31 | .idea 32 | build 33 | .gradle 34 | out 35 | -------------------------------------------------------------------------------- /grails-app/views/formMessage/index.gsp: -------------------------------------------------------------------------------- 1 | <%@ page contentType="text/html;charset=UTF-8" %> 2 | 3 | 4 | 5 | 6 | 7 | 8 | Example of submitting a message using a Grails form. This gets routed to FormMessageController which dispatches it to a websocket topic. 9 | Subscribing to that topic and displaying output is left as an exercise for the user. 10 | 11 | 12 | 13 | 14 | 15 | -------------------------------------------------------------------------------- /grails-app/controllers/com/objectpartners/plummer/FormMessageController.groovy: -------------------------------------------------------------------------------- 1 | package com.objectpartners.plummer 2 | 3 | import groovy.json.JsonBuilder 4 | import org.springframework.messaging.simp.SimpMessagingTemplate 5 | 6 | class FormMessageController { 7 | 8 | def SimpMessagingTemplate brokerMessagingTemplate 9 | 10 | def index() { 11 | } 12 | 13 | def String message() { 14 | def builder = new JsonBuilder() 15 | builder { 16 | message(params.message) 17 | timestamp(new Date().getTime()) 18 | } 19 | brokerMessagingTemplate.convertAndSend("/topic/formMessage", builder.toString()) 20 | println builder.toString() 21 | render(view: "index") 22 | } 23 | } -------------------------------------------------------------------------------- /grails-app/conf/logback.groovy: -------------------------------------------------------------------------------- 1 | import grails.util.BuildSettings 2 | import grails.util.Environment 3 | 4 | 5 | // See http://logback.qos.ch/manual/groovy.html for details on configuration 6 | appender('STDOUT', ConsoleAppender) { 7 | encoder(PatternLayoutEncoder) { 8 | pattern = "%level %logger - %msg%n" 9 | } 10 | } 11 | 12 | root(ERROR, ['STDOUT']) 13 | 14 | if(Environment.current == Environment.DEVELOPMENT) { 15 | def targetDir = BuildSettings.TARGET_DIR 16 | if(targetDir) { 17 | 18 | appender("FULL_STACKTRACE", FileAppender) { 19 | 20 | file = "${targetDir}/stacktrace.log" 21 | append = true 22 | encoder(PatternLayoutEncoder) { 23 | pattern = "%level %logger - %msg%n" 24 | } 25 | } 26 | logger("StackTrace", ERROR, ['FULL_STACKTRACE'], false ) 27 | } 28 | } 29 | -------------------------------------------------------------------------------- /grails-app/controllers/com/objectpartners/plummer/ChatController.groovy: -------------------------------------------------------------------------------- 1 | package com.objectpartners.plummer 2 | 3 | import org.springframework.messaging.handler.annotation.MessageMapping 4 | import org.springframework.messaging.handler.annotation.SendTo 5 | import groovy.json.JsonBuilder 6 | 7 | class ChatController { 8 | 9 | /** 10 | * Accepts incoming chat messages sent by browsers and routes them 11 | * to the 'chat' topic that all browser clients are subscribed to. 12 | **/ 13 | @MessageMapping("/chat") 14 | @SendTo("/topic/chat") 15 | protected String chat(String chatMsg) { 16 | /** 17 | * Use the awesome Groovy JsonBuilder to convert a dynamically-defined 18 | * data structure to JSON. 19 | **/ 20 | def builder = new JsonBuilder() 21 | builder { 22 | message(chatMsg) 23 | timestamp(new Date().getTime()) 24 | } 25 | builder.toString() 26 | } 27 | } 28 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | The MIT License (MIT) 2 | 3 | Copyright (c) 2015 Mike Plummer 4 | 5 | Permission is hereby granted, free of charge, to any person obtaining a copy 6 | of this software and associated documentation files (the "Software"), to deal 7 | in the Software without restriction, including without limitation the rights 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 9 | copies of the Software, and to permit persons to whom the Software is 10 | furnished to do so, subject to the following conditions: 11 | 12 | The above copyright notice and this permission notice shall be included in all 13 | copies or substantial portions of the Software. 14 | 15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 21 | SOFTWARE. 22 | -------------------------------------------------------------------------------- /grails-app/jobs/com/objectpartners/plummer/PrivateChatMessageJob.groovy: -------------------------------------------------------------------------------- 1 | package com.objectpartners.plummer 2 | 3 | import org.springframework.messaging.simp.SimpMessagingTemplate 4 | import groovy.json.JsonBuilder 5 | 6 | /** 7 | * Quartz job that kicks off at Grails startup. This job executes every 10 8 | * seconds to generate a message sent to the "user" user - these messages 9 | * will not be seen by other or anonymous users 10 | **/ 11 | class PrivateChatMessageJob { 12 | 13 | static triggers = { 14 | simple repeatInterval: 10000L 15 | } 16 | 17 | /** 18 | * Inject the messenger that accepts Stomp messages. 19 | **/ 20 | SimpMessagingTemplate brokerMessagingTemplate 21 | 22 | /** 23 | * Basic info about this Quartz job. 24 | **/ 25 | def group = "ChatGroup" 26 | def description = "Publishes a private chat message every 10 seconds" 27 | 28 | /** 29 | * What actually gets executed as the job. 30 | **/ 31 | def execute() { 32 | def builder = new JsonBuilder() 33 | builder { 34 | message("Hello, user!") 35 | timestamp(new Date()) 36 | } 37 | 38 | //Note the lack of the leading /user compared to what the webpage subscribes to 39 | // - this is added automatically 40 | brokerMessagingTemplate.convertAndSendToUser "user", "/topic/chat", builder 41 | 42 | println "Sent private message" 43 | } 44 | } 45 | -------------------------------------------------------------------------------- /grails-app/views/index.gsp: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | WebSockets Example 7 | 8 | 9 | 10 | 11 | 12 | 18 | 19 | 20 |
21 |

Stock Ticker and Chat

22 |
23 | 24 |
25 |

Stock Quotes

26 | 27 | 28 |
29 |

Unsubscribed

30 |

31 |

32 |
33 |
34 |
35 |
36 |

Chat

37 | 38 | 39 |
40 |
41 |
42 | 43 | 44 | -------------------------------------------------------------------------------- /grails-app/init/com/objectpartners/plummer/SecurityConfiguration.groovy: -------------------------------------------------------------------------------- 1 | package com.objectpartners.plummer 2 | 3 | import org.springframework.beans.factory.annotation.Autowired 4 | import org.springframework.context.annotation.Configuration 5 | import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder 6 | import org.springframework.security.config.annotation.authentication.configurers.provisioning.InMemoryUserDetailsManagerConfigurer 7 | import org.springframework.security.config.annotation.web.builders.HttpSecurity 8 | import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity 9 | import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter 10 | 11 | @Configuration 12 | @EnableWebSecurity 13 | class SecurityConfiguration extends WebSecurityConfigurerAdapter { 14 | 15 | @Override 16 | protected void configure(HttpSecurity http) throws Exception { 17 | //Enable BASIC auth and prompt for credentials when accessing 18 | http.authorizeRequests() 19 | .antMatchers("/**") 20 | .authenticated() 21 | .and().httpBasic() 22 | //Disable CSRF for convenience - do not do this in a production environment! 23 | http.csrf().disable() 24 | } 25 | 26 | @Override 27 | @Autowired 28 | void configure(AuthenticationManagerBuilder auth) throws Exception { 29 | InMemoryUserDetailsManagerConfigurer configurer = auth.inMemoryAuthentication(); 30 | //Setup two dummy users - messages are automatically sent to "user" but not "user2" 31 | configurer.withUser("user").password("password").roles("USER") 32 | configurer.withUser("user2").password("password").roles("USER") 33 | } 34 | 35 | } 36 | -------------------------------------------------------------------------------- /grails-app/jobs/com/objectpartners/plummer/StockQuoteJob.groovy: -------------------------------------------------------------------------------- 1 | package com.objectpartners.plummer 2 | 3 | import org.apache.commons.lang.RandomStringUtils 4 | import org.apache.commons.lang.math.RandomUtils 5 | import org.springframework.messaging.simp.SimpMessagingTemplate 6 | import groovy.json.JsonBuilder 7 | 8 | /** 9 | * Quartz job that kicks off at Grails startup. This job executes every 2.5 10 | * seconds to generate a fake stock quote, convert it to JSON, and publish 11 | * it to the optionally-subscribed-to stockQuote topic. Any browser clients 12 | * subscribed to the topic will receive it. 13 | **/ 14 | class StockQuoteJob { 15 | /** 16 | * Tell Quartz how to schedule this job. You can optionally define 17 | * an initial delay, number of executions, or repeatDelay (as opposed 18 | * to repeatInterval). 19 | **/ 20 | static triggers = { 21 | simple repeatInterval: 2500L 22 | } 23 | 24 | /** 25 | * Inject the messenger that accepts Stomp messages. 26 | **/ 27 | SimpMessagingTemplate brokerMessagingTemplate 28 | 29 | /** 30 | * Basic info about this Quartz job. 31 | **/ 32 | def group = "StocksGroup" 33 | def description = "Publishes a random StockQuote every 10 seconds" 34 | 35 | /** 36 | * What actually gets executed as the job. 37 | **/ 38 | def execute() { 39 | /** 40 | * Use the awesome Groovy JsonBuilder to convert a dynamically-defined 41 | * data structure to JSON. 42 | **/ 43 | def builder = new JsonBuilder() 44 | builder { 45 | symbol(RandomStringUtils.randomAlphabetic(3).toUpperCase()) 46 | price(RandomUtils.nextDouble() * 100) 47 | timestamp(new Date()) 48 | } 49 | 50 | //Publish the new quote 51 | brokerMessagingTemplate.convertAndSend "/topic/stockQuote", builder 52 | } 53 | } 54 | -------------------------------------------------------------------------------- /grails-app/assets/stylesheets/main.css: -------------------------------------------------------------------------------- 1 | 2 | body, input { 3 | font-family: sans-serif; 4 | } 5 | 6 | html { 7 | background-color: #DDD; 8 | background-image: -moz-linear-gradient(center top, #AAA, #DDD); 9 | background-image: -webkit-gradient(linear, left top, left bottom, color-stop(0, #AAA), color-stop(1, #DDD)); 10 | background-image: linear-gradient(top, #AAA, #DDD); 11 | filter: progid:DXImageTransform.Microsoft.gradient(startColorStr = '#AAAAAA', EndColorStr = '#DDDDDD'); 12 | background-repeat: no-repeat; 13 | height: 100%; 14 | /* change the box model to exclude the padding from the calculation of 100% height (IE8+) */ 15 | -webkit-box-sizing: border-box; 16 | -moz-box-sizing: border-box; 17 | box-sizing: border-box; 18 | } 19 | 20 | html.no-cssgradients { 21 | background-color: #AAA; 22 | } 23 | 24 | body { 25 | background: #FFFFFF; 26 | color: #333333; 27 | margin: 0 auto; 28 | max-width: 960px; 29 | overflow-x: hidden; /* prevents box-shadow causing a horizontal scrollbar in firefox when viewport < 960px wide */ 30 | -moz-box-shadow: 0 0 0.3em #255B17; 31 | -webkit-box-shadow: 0 0 0.3em #255B17; 32 | box-shadow: 0 0 0.3em #255B17; 33 | } 34 | 35 | header { 36 | background: #0052A3; 37 | padding-left: 5px; 38 | } 39 | 40 | footer { 41 | background: #0052A3; 42 | color: #000; 43 | clear: both; 44 | font-size: 0.8em; 45 | margin-top: 1.5em; 46 | padding: 1em; 47 | min-height: 1em; 48 | } 49 | 50 | section { 51 | padding-left: 10px; 52 | } 53 | 54 | h1 { 55 | color: #FFFFFF; 56 | } 57 | 58 | input { 59 | background-color: #FCFCFC; 60 | border: 1px solid #CCCCCC; 61 | font-size: 1em; 62 | padding: 0.2em 0.4em; 63 | } 64 | 65 | input:focus { 66 | background-color: #FFFFFF; 67 | border: 1px solid #EEEEEE; 68 | outline: 0; 69 | -moz-box-shadow: 0 0 0.5em #FFFFFF; 70 | -webkit-box-shadow: 0 0 0.5em #FFFFFF; 71 | box-shadow: 0 0 0.5em #FFFFFF; 72 | } 73 | 74 | .sectionDivider { 75 | margin: 10px 0px; 76 | } 77 | 78 | #symbol { 79 | color: blue; 80 | } 81 | 82 | #quoteDiv { 83 | padding: 10px 20px; 84 | } 85 | 86 | #chatDiv { 87 | padding: 10px 20px; 88 | } 89 | -------------------------------------------------------------------------------- /grails-app/conf/application.yml: -------------------------------------------------------------------------------- 1 | --- 2 | grails: 3 | profile: web 4 | codegen: 5 | defaultPackage: com.objectpartners.plummer 6 | info: 7 | app: 8 | name: '@info.app.name@' 9 | version: '@info.app.version@' 10 | grailsVersion: '@info.app.grailsVersion@' 11 | spring: 12 | groovy: 13 | template: 14 | check-template-location: false 15 | 16 | --- 17 | grails: 18 | mime: 19 | disable: 20 | accept: 21 | header: 22 | userAgents: 23 | - Gecko 24 | - WebKit 25 | - Presto 26 | - Trident 27 | types: 28 | all: '*/*' 29 | atom: application/atom+xml 30 | css: text/css 31 | csv: text/csv 32 | form: application/x-www-form-urlencoded 33 | html: 34 | - text/html 35 | - application/xhtml+xml 36 | js: text/javascript 37 | json: 38 | - application/json 39 | - text/json 40 | multipartForm: multipart/form-data 41 | rss: application/rss+xml 42 | text: text/plain 43 | hal: 44 | - application/hal+json 45 | - application/hal+xml 46 | xml: 47 | - text/xml 48 | - application/xml 49 | urlmapping: 50 | cache: 51 | maxsize: 1000 52 | controllers: 53 | defaultScope: singleton 54 | converters: 55 | encoding: UTF-8 56 | hibernate: 57 | cache: 58 | queries: false 59 | views: 60 | default: 61 | codec: html 62 | gsp: 63 | encoding: UTF-8 64 | htmlcodec: xml 65 | codecs: 66 | expression: html 67 | scriptlets: html 68 | taglib: none 69 | staticparts: none 70 | 71 | --- 72 | 73 | quartz: 74 | autoStartup: true 75 | 76 | environments: 77 | development: 78 | quartz: 79 | autoStartup: true 80 | test: 81 | quartz: 82 | autoStartup: true 83 | production: 84 | quartz: 85 | autoStartup: true 86 | -------------------------------------------------------------------------------- /gradlew.bat: -------------------------------------------------------------------------------- 1 | @if "%DEBUG%" == "" @echo off 2 | @rem ########################################################################## 3 | @rem 4 | @rem Gradle startup script for Windows 5 | @rem 6 | @rem ########################################################################## 7 | 8 | @rem Set local scope for the variables with windows NT shell 9 | if "%OS%"=="Windows_NT" setlocal 10 | 11 | set DIRNAME=%~dp0 12 | if "%DIRNAME%" == "" set DIRNAME=. 13 | set APP_BASE_NAME=%~n0 14 | set APP_HOME=%DIRNAME% 15 | 16 | @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 17 | set DEFAULT_JVM_OPTS= 18 | 19 | @rem Find java.exe 20 | if defined JAVA_HOME goto findJavaFromJavaHome 21 | 22 | set JAVA_EXE=java.exe 23 | %JAVA_EXE% -version >NUL 2>&1 24 | if "%ERRORLEVEL%" == "0" goto init 25 | 26 | echo. 27 | echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 28 | echo. 29 | echo Please set the JAVA_HOME variable in your environment to match the 30 | echo location of your Java installation. 31 | 32 | goto fail 33 | 34 | :findJavaFromJavaHome 35 | set JAVA_HOME=%JAVA_HOME:"=% 36 | set JAVA_EXE=%JAVA_HOME%/bin/java.exe 37 | 38 | if exist "%JAVA_EXE%" goto init 39 | 40 | echo. 41 | echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 42 | echo. 43 | echo Please set the JAVA_HOME variable in your environment to match the 44 | echo location of your Java installation. 45 | 46 | goto fail 47 | 48 | :init 49 | @rem Get command-line arguments, handling Windows variants 50 | 51 | if not "%OS%" == "Windows_NT" goto win9xME_args 52 | 53 | :win9xME_args 54 | @rem Slurp the command line arguments. 55 | set CMD_LINE_ARGS= 56 | set _SKIP=2 57 | 58 | :win9xME_args_slurp 59 | if "x%~1" == "x" goto execute 60 | 61 | set CMD_LINE_ARGS=%* 62 | 63 | :execute 64 | @rem Setup the command line 65 | 66 | set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar 67 | 68 | @rem Execute Gradle 69 | "%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS% 70 | 71 | :end 72 | @rem End local scope for the variables with windows NT shell 73 | if "%ERRORLEVEL%"=="0" goto mainEnd 74 | 75 | :fail 76 | rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of 77 | rem the _cmd.exe /c_ return code! 78 | if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1 79 | exit /b 1 80 | 81 | :mainEnd 82 | if "%OS%"=="Windows_NT" endlocal 83 | 84 | :omega 85 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # Grails_WebSockets 2 | Example of WebSockets usage in Grails using the grails-spring-websocket plugin, SockJS, and StompJS. This was done as a hobby project to get more familiar with WebSockets and the changes in Grails v3. 3 | 4 | ## Description 5 | The basic premise of the application is a Stock Ticker and Chat Room (not very original, I know). Upon opening the webpage the browser attempts to establish a series of connections via WebSocket back to the server to listen for subscribed data. On startup the server component launches a Quartz job (background scheduling) to generate random (and complete gibberish) stock quotes. Each web client can subscribe or unsubscribe from these updates at-will. If any user sends a chat message it is routed via the server to any other open web clients to act as a chat room. 6 | 7 | For more info take a look at the blog post this example was written for: https://objectpartners.com/2015/06/10/websockets-in-grails-3-0/ 8 | 9 | ## Usage 10 | 11 | 1. Clone this repo 12 | 2. From project root, execute `./gradlew bootRun` 13 | 3. Navigate to `http://localhost:8080`. 14 | 4. Login either as `user/password`, or `user2/password` 15 | 16 | The main page supplies options to subscribe to stock quotes (reminder - these are fake! I'm not responsible if you decide to believe them). Any number of browser tabs you open and subscribe will get the same data broadcast to them at the same time. There is also a chat option - any open browser tab will display the chat messages from any other client. 17 | 18 | To exit, Ctrl-C in your command prompt (assuming you're in UNIX). It may take several seconds for grails to shut down. 19 | 20 | ### Private Messages 21 | If you are logged in as `user` then you will see private messages sent to you by the server - `user2` will not see these. This is an example of secured WebSockets which is managed using SpringSecurity integration. 22 | 23 | ## Tools & Frameworks 24 | ### grails-spring-websocket 25 | Brings Spring 4 WebSockets features into Grails. This exact same functionality is available in standalone Spring-Boot so the majority of the code in this repo can be ported over to a Spring-Boot app with minimal structural changes. 26 | 27 | ### Grails 3.2.x 28 | I've updated the project to use Grails 3.2.9 (the latest as of 25 July 2017). 29 | 30 | ### Stomp 31 | From the [Stomp docs](http://jmesnil.net/stomp-websocket/doc/): 32 | >STOMP is a simple text-orientated messaging protocol. It defines an interoperable wire format so that any of the available STOMP clients can communicate with any STOMP message broker to provide easy and widespread messaging interoperability among languages and platforms 33 | 34 | ### SockJS 35 | From the [SockJS docs](https://github.com/sockjs/sockjs-client): 36 | >SockJS is a browser JavaScript library that provides a WebSocket-like object. SockJS gives you a coherent, cross-browser, Javascript API which creates a low latency, full duplex, cross-domain communication channel between the browser and the web server. 37 | 38 | ## Licensing 39 | This code is provided under the terms of the MIT license: basically you're free to do whatever you want with it, but no guarantees are made to its validity, stability, or safety. All works referenced by or utilized by this project are the property of their respective copyright holders and retain licensing that may be more restrictive. 40 | -------------------------------------------------------------------------------- /grails-app/assets/javascripts/application.js: -------------------------------------------------------------------------------- 1 | // This is a manifest file that'll be compiled into application.js. 2 | // 3 | // Any JavaScript file within this directory can be referenced here using a relative path. 4 | // 5 | // You're free to add application-wide JavaScript to this file, but it's generally better 6 | // to create separate JavaScript files as needed. 7 | // 8 | //= require jquery-2.2.0.min 9 | //= require_tree . 10 | //= require_self 11 | 12 | var GrailsWS = function ($) { 13 | // SockJS socket that connects to the server (preferably using a WebSocket) 14 | var _socket = null; 15 | // Stomp client that handles sending messages over the WebSocket 16 | var _client = null; 17 | //Track the subscription so we can unsubscribe later. 18 | var _quoteSubscription = null; 19 | 20 | var handleChatMessage = function (message) { 21 | var chatMsg = JSON.parse(message.body); 22 | var time = '' + new Date(chatMsg.timestamp).toLocaleTimeString() + ''; 23 | $("#chatDiv").append(time + ': ' + chatMsg.message + '
'); 24 | }; 25 | 26 | var handlePrivateChatMessage = function (message) { 27 | var chatMsg = JSON.parse(message.body); 28 | var time = '' + new Date(chatMsg.content.timestamp).toLocaleTimeString() + ''; 29 | $("#chatDiv").append(time + ': (PRIVATE) ' + chatMsg.content.message + '
'); 30 | }; 31 | 32 | var connect = function () { 33 | //Create a new SockJS socket - this is what connects to the server 34 | //(preferably using WebSockets). 35 | _socket = new SockJS('/stomp'); 36 | //Build a Stomp client to send messages over the socket we built. 37 | _client = Stomp.over(_socket); 38 | 39 | //Have SockJS connect to the server. 40 | _client.connect({}, function () { 41 | //Subscribe to the 'chat' topic and define a function that is executed 42 | //anytime a message is published to that topic by the server or another client. 43 | _client.subscribe("/topic/chat", handleChatMessage); 44 | 45 | //Subscribe to the 'private' chat topic and define a function that is executed 46 | //anytime a message is published to that topic by the server or another client. 47 | //Any chat message sent by 'user' will be seen by any other sessions logged in as 48 | //'user' but not 'user2' 49 | _client.subscribe("/user/topic/chat", handlePrivateChatMessage); 50 | }); 51 | }; 52 | 53 | var updateQuote = function (symbol, price, time) { 54 | $("#symbol").text(symbol); 55 | $("#price").text(price); 56 | $("#timestamp").text(time); 57 | }; 58 | 59 | var setButtonStates = function (startEnabled, stopEnabled) { 60 | $("#stopButton").prop('disabled', startEnabled); 61 | $("#startButton").prop('disabled', stopEnabled); 62 | }; 63 | 64 | var subscribe = function () { 65 | _quoteSubscription = _client.subscribe("/topic/stockQuote", function (message) { 66 | var quote = JSON.parse(message.body).content; 67 | 68 | updateQuote(quote['symbol'], quote['price'].toFixed(2), new Date(quote.timestamp).toLocaleString()); 69 | }); 70 | }; 71 | 72 | var unsubscribe = function () { 73 | _quoteSubscription.unsubscribe(); 74 | _quoteSubscription = null; 75 | }; 76 | 77 | var initButtonHandlers = function () { 78 | //When the user clicks the 'subscribe' button... 79 | $("#startButton").click(function () { 80 | //Toggle button states 81 | setButtonStates(false, true); 82 | 83 | //Initiate a subscription to stockQuote messages. 84 | subscribe(); 85 | 86 | //Since the user could subscribe between quotes put up 'waiting' 87 | //to indicate the subscription succeeded and we're just waiting for the 88 | //first message. 89 | updateQuote('Waiting...', '', ''); 90 | }); 91 | 92 | //When the user clicks the 'unsubscribe' button... 93 | $("#stopButton").click(function () { 94 | //Toggle button states 95 | setButtonStates(true, false); 96 | 97 | //Unsubscribe so we don't get any more messages 98 | unsubscribe(); 99 | 100 | updateQuote('Unsubscribed', '', ''); 101 | }); 102 | 103 | //When the user sends a chat message publish it to the chat topic 104 | $("#sendButton").click(function () { 105 | _client.send("/app/chat", {}, JSON.stringify($("#chatMessage").val())); 106 | }); 107 | }; 108 | 109 | return { 110 | init: function() { 111 | connect(); 112 | initButtonHandlers(); 113 | } 114 | } 115 | }; 116 | -------------------------------------------------------------------------------- /gradlew: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env sh 2 | 3 | ############################################################################## 4 | ## 5 | ## Gradle start up script for UN*X 6 | ## 7 | ############################################################################## 8 | 9 | # Attempt to set APP_HOME 10 | # Resolve links: $0 may be a link 11 | PRG="$0" 12 | # Need this for relative symlinks. 13 | while [ -h "$PRG" ] ; do 14 | ls=`ls -ld "$PRG"` 15 | link=`expr "$ls" : '.*-> \(.*\)$'` 16 | if expr "$link" : '/.*' > /dev/null; then 17 | PRG="$link" 18 | else 19 | PRG=`dirname "$PRG"`"/$link" 20 | fi 21 | done 22 | SAVED="`pwd`" 23 | cd "`dirname \"$PRG\"`/" >/dev/null 24 | APP_HOME="`pwd -P`" 25 | cd "$SAVED" >/dev/null 26 | 27 | APP_NAME="Gradle" 28 | APP_BASE_NAME=`basename "$0"` 29 | 30 | # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 31 | DEFAULT_JVM_OPTS="" 32 | 33 | # Use the maximum available, or set MAX_FD != -1 to use that value. 34 | MAX_FD="maximum" 35 | 36 | warn ( ) { 37 | echo "$*" 38 | } 39 | 40 | die ( ) { 41 | echo 42 | echo "$*" 43 | echo 44 | exit 1 45 | } 46 | 47 | # OS specific support (must be 'true' or 'false'). 48 | cygwin=false 49 | msys=false 50 | darwin=false 51 | nonstop=false 52 | case "`uname`" in 53 | CYGWIN* ) 54 | cygwin=true 55 | ;; 56 | Darwin* ) 57 | darwin=true 58 | ;; 59 | MINGW* ) 60 | msys=true 61 | ;; 62 | NONSTOP* ) 63 | nonstop=true 64 | ;; 65 | esac 66 | 67 | CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar 68 | 69 | # Determine the Java command to use to start the JVM. 70 | if [ -n "$JAVA_HOME" ] ; then 71 | if [ -x "$JAVA_HOME/jre/sh/java" ] ; then 72 | # IBM's JDK on AIX uses strange locations for the executables 73 | JAVACMD="$JAVA_HOME/jre/sh/java" 74 | else 75 | JAVACMD="$JAVA_HOME/bin/java" 76 | fi 77 | if [ ! -x "$JAVACMD" ] ; then 78 | die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME 79 | 80 | Please set the JAVA_HOME variable in your environment to match the 81 | location of your Java installation." 82 | fi 83 | else 84 | JAVACMD="java" 85 | which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 86 | 87 | Please set the JAVA_HOME variable in your environment to match the 88 | location of your Java installation." 89 | fi 90 | 91 | # Increase the maximum file descriptors if we can. 92 | if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then 93 | MAX_FD_LIMIT=`ulimit -H -n` 94 | if [ $? -eq 0 ] ; then 95 | if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then 96 | MAX_FD="$MAX_FD_LIMIT" 97 | fi 98 | ulimit -n $MAX_FD 99 | if [ $? -ne 0 ] ; then 100 | warn "Could not set maximum file descriptor limit: $MAX_FD" 101 | fi 102 | else 103 | warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT" 104 | fi 105 | fi 106 | 107 | # For Darwin, add options to specify how the application appears in the dock 108 | if $darwin; then 109 | GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\"" 110 | fi 111 | 112 | # For Cygwin, switch paths to Windows format before running java 113 | if $cygwin ; then 114 | APP_HOME=`cygpath --path --mixed "$APP_HOME"` 115 | CLASSPATH=`cygpath --path --mixed "$CLASSPATH"` 116 | JAVACMD=`cygpath --unix "$JAVACMD"` 117 | 118 | # We build the pattern for arguments to be converted via cygpath 119 | ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null` 120 | SEP="" 121 | for dir in $ROOTDIRSRAW ; do 122 | ROOTDIRS="$ROOTDIRS$SEP$dir" 123 | SEP="|" 124 | done 125 | OURCYGPATTERN="(^($ROOTDIRS))" 126 | # Add a user-defined pattern to the cygpath arguments 127 | if [ "$GRADLE_CYGPATTERN" != "" ] ; then 128 | OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)" 129 | fi 130 | # Now convert the arguments - kludge to limit ourselves to /bin/sh 131 | i=0 132 | for arg in "$@" ; do 133 | CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -` 134 | CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option 135 | 136 | if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition 137 | eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"` 138 | else 139 | eval `echo args$i`="\"$arg\"" 140 | fi 141 | i=$((i+1)) 142 | done 143 | case $i in 144 | (0) set -- ;; 145 | (1) set -- "$args0" ;; 146 | (2) set -- "$args0" "$args1" ;; 147 | (3) set -- "$args0" "$args1" "$args2" ;; 148 | (4) set -- "$args0" "$args1" "$args2" "$args3" ;; 149 | (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;; 150 | (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;; 151 | (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;; 152 | (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;; 153 | (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;; 154 | esac 155 | fi 156 | 157 | # Escape application args 158 | save ( ) { 159 | for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done 160 | echo " " 161 | } 162 | APP_ARGS=$(save "$@") 163 | 164 | # Collect all arguments for the java command, following the shell quoting and substitution rules 165 | eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS" 166 | 167 | # by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong 168 | if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then 169 | cd "$(dirname "$0")" 170 | fi 171 | 172 | exec "$JAVACMD" "$@" 173 | -------------------------------------------------------------------------------- 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