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datatable.html
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<html>
<head>
<title>Apache Pulsar - Websockets - Data Tables - Meetup Chat</title>
<link rel="stylesheet" type="text/css" href="https://cdn.datatables.net/1.11.3/css/jquery.dataTables.min.css">
<script type="text/javascript" language="javascript" src="https://code.jquery.com/jquery-3.5.1.js"></script>
<script type="text/javascript" language="javascript" src="https://cdn.datatables.net/1.11.3/js/jquery.dataTables.min.js"></script>
</head>
<body bgcolor="white" text="black">
<img data-v-c612f5f2="" alt="StreamNative Logo" src="https://streamnative.io/assets/static/sn-logo-vertical-dark.c516648.a34f97839dee38e7499aa0c21d0b2255.png" width="543" data-src="https://streamnative.io/assets/static/sn-logo-vertical-dark.c516648.a34f97839dee38e7499aa0c21d0b2255.png" data-srcset="https://streamnative.io/assets/static/sn-logo-vertical-dark.c516648.a34f97839dee38e7499aa0c21d0b2255.png 543w" data-sizes="(max-width: 543px) 100vw, 543px" class="w-56 mt-4 md:mt-0 g-image g-image--lazy g-image--loaded" srcset="https://streamnative.io/assets/static/sn-logo-vertical-dark.c516648.a34f97839dee38e7499aa0c21d0b2255.png 543w" sizes="(max-width: 543px) 100vw, 543px">
<form action="/datatable.html" method="post" enctype="multipart/form-data" id="form-id">
<div id="demo" name="demo"></demo>
<!-- field1 -->
<p><label>User: </label><input name="user" type="text" id="user-id" size="75" value="" maxlength="100"/>
</p>
<!-- field 2 -->
<p><label>Question: </label><input type="text" name="other-field" type="text" id="other-field-id" size="75" maxlength="200" value=""/>
</p>
<!-- field 3 -->
<p><label>Contact Info: </label><input name="contactinfo" type="text" id="contactinfo-id" size="75" maxlength="100" value=""/>
</p>
<p><input type="button" value="Send to Pulsar" onClick="loadDoc()" /></p>
</form>
<script>
function IsJsonString(str) {
try {
JSON.parse(str);
} catch (e) {
return false;
}
return true;
}
/// send the information to the server
function loadDoc() {
var xhttp = new XMLHttpRequest();
xhttp.onreadystatechange = function() {
if (this.readyState == 4 && this.status == 200) {
document.getElementById("demo").innerHTML = '';
}
};
//var wsUri = "ws://nvidia-desktop:8080/ws/v2/producer/persistent/public/default/chat2";
//var wsUri = "ws://pulsar1:31633/ws/v2/producer/persistent/public/default/chat2";
var wsUri = "ws://pulsar1:8080/ws/v2/producer/persistent/public/default/chat2";
websocket = new WebSocket(wsUri);
const pulsarObject = {
userInfo: document.getElementById('user-id').value.substring(0,200),
contactInfo: document.getElementById('contactinfo-id').value.substring(0,200),
comment: document.getElementById('other-field-id').value.substring(0, 200)};
const jsonStr = JSON.stringify(pulsarObject);
var payloadStr = btoa(jsonStr);
const propertiesObject = {key: Date.now() }
var data = JSON.stringify({ "payload": payloadStr, "properties": propertiesObject, "context": "cs" });
websocket.onopen = function(evt) {
if (websocket.readyState === WebSocket.OPEN) {
websocket.send(data);
}
};
websocket.onerror = function(evt) {console.log('ERR', evt)};
websocket.onmessage = function(evt) {
//console.log(evt.data);
//var dataPoints = JSON.parse(evt.data);
//console.log(dataPoints.messageId);
//console.log(dataPoints.result);
// dataPoints.context dataPoints.errorCode dataPoints.schemaVersion
}
websocket.onclose = function(evt) {
if (evt.wasClean) {
console.log(evt);
} else {
console.log('[close] Connection died');
}
};
}
var form = document.getElementById('form-id');
form.onsubmit = function() {
// FormData receives the whole form
var formData = new FormData(form);
// We send the data where the form wanted
var action = form.getAttribute('action');
loadDoc();
return false;
}
</script>
<img src="https://streamnative.io/uploads/images/home/unified_messaging_model.svg" border="0" width="50" height="50" alt="x">
<br>
<br><br>
<table id="example" class="display" style="width:100%">
<thead>
<tr>
<th><b>Sentiment</b></th>
<th><b>Publish Time</b></th>
<th><b>Message</b></th>
<th><b>User</b></th>
<th><b>Contact Info</b></th>
</tr>
</thead>
<tfoot>
<tr>
<th><b>Sentiment</b></th>
<th><b>Publish Time</b></th>
<th><b>Message</b></th>
<th><b>User</b></th>
<th><b>Contact Info</b></th>
</tr>
</tfoot>
</table>
<script>
function isEmpty(val){
return (val === undefined || val == null || val.length <= 0) ? true : false;
}
function IsJsonString(str) {
try {
JSON.parse(str);
} catch (e) {
return false;
}
return true;
}
$(document).ready(function() {
var t = $('#example').DataTable();
var wsUri = "ws://pulsar1:8080/ws/v2/consumer/persistent/public/default/chatresult2/chatrreader?subscriptionType=Shared&receiverQueueSize=500";
websocket = new WebSocket(wsUri);
websocket.onopen = function(evt) {
console.log('websocket connection open');
};
websocket.onerror = function(evt) {console.log('ERR', evt)};
websocket.onmessage = function(evt) {
//console.log("evtdata:" + evt.data);
var dataPoints = JSON.parse(evt.data);
//console.log("evtdata msgid:" + dataPoints.messageId);
if (websocket.readyState === WebSocket.OPEN) {
websocket.send("{\"messageId\": \"" + dataPoints.messageId + "\"}");
}
if ( dataPoints === undefined || dataPoints == null || dataPoints.payload === undefined || dataPoints.payload == null ) {
return;
}
if (IsJsonString(atob(dataPoints.payload))) {
var pulsarMessage = JSON.parse(atob(dataPoints.payload));
if ( pulsarMessage === undefined || pulsarMessage == null ) {
return;
}
var sentiment = "";
if ( !isEmpty(pulsarMessage.sentiment) ) {
sentiment = pulsarMessage.sentiment;
}
var publishTime = "";
if ( !isEmpty(dataPoints.publishTime) ) {
publishTime = dataPoints.publishTime;
}
var comment = "";
if ( !isEmpty(pulsarMessage.comment) ) {
comment = pulsarMessage.comment;
}
var userInfo= "";
if ( !isEmpty(pulsarMessage.userInfo) ) {
userInfo = pulsarMessage.userInfo;
}
var contactInfo= "";
if ( !isEmpty(pulsarMessage.contactInfo) ) {
contactInfo = pulsarMessage.contactInfo;
}
t.row.add( [ sentiment, publishTime, comment, userInfo, contactInfo ] ).draw(true );
}
};
} );
</script>
<p>
<p><img src="stylecloud.png" border="0"></p>
</p><br>
© 2021/2022 Tim Spann @PaasDev - datainmotion.dev - streamnative.io
</body>
</html>