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RxJava for Grails Async Comet Example
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| var waitingMsg = false; | |
| function tickTock(){ | |
| if(!waitingMsg){ | |
| waitingMsg = true; | |
| var xhr = new XMLHttpRequest(); | |
| xhr.previous_text = ''; | |
| xhr.onreadystatechange = function(){ | |
| if(xhr.readyState > 2){ | |
| if(xhr.status == 200){ | |
| var new_response = xhr.responseText.substring(xhr.previous_text.length); | |
| xhr.previous_text = xhr.responseText; | |
| var elem = document.getElementById('message'); | |
| elem.innerHTML = new_response; | |
| } | |
| waitingMsg = false; | |
| } | |
| }; | |
| xhr.open('get', '/ticktock', true); | |
| xhr.send(); | |
| } | |
| } | |
| tickTock() |
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| class TickTockController { | |
| def index() { | |
| Observable.create({ Subscriber subscriber -> | |
| task { | |
| for(i in (0..20)) { | |
| if(i % 2 == 0) { | |
| subscriber.onNext( | |
| Rx.render("Tick") | |
| ) | |
| } | |
| else { | |
| subscriber.onNext( | |
| Rx.render("Tock") | |
| ) | |
| } | |
| // the sleep here is to simular a long lived request that takes time etc. | |
| sleep 1000 | |
| } | |
| subscriber.onCompleted() | |
| } | |
| } as Observable.OnSubscribe) | |
| } | |
| } |
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