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Web Liquid StreamsMashup ChallengeICWE 2015Masiar Babazadeh@masiarbAndrea Gallidabino@agallidabinoCesare Pautasso@pautasso
University of Lugano Switzerland
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Web Liquid Streams Overview
STREAMING FRAMEWORK
Producer Filter Consumer
Topology
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STREAMING FRAMEWORK
O1 O2 O3
Operators
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STREAMING FRAMEWORK
O1 O2 O3
Bindings
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MASHUP
Operator
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MASHUP
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Stream
Operator
MASHUP
Operator Operator
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Stream Rest
MASHUP
Operator Operator
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Stream
Operator
Rest
OPERATORS
Operator
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OPERATORS
Operator
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OPERATORS
Operator
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WORKERS
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Child Process WebWorkers
OPERATOR SCRIPTS - API
var k = require(‘wls.js’)
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k.createNode(function(msg) { …
})
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OPERATOR SCRIPTS - API
k.send({ t: tweet, location: {gps}
})
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OPERATOR SCRIPTS - API
k.createNode(function(msg) { …
http.get(options, function(res){ …
k.send(res) })
)}
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OPERATOR SCRIPTS - AJAX
BROWSER ONLY - API
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Operator
Operator
BROWSER ONLY - API
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Operator
Operator
W WW
W WW
W WW
BROWSER ONLY - API
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Operator
Operator
W WW
W WW
W WW
DOM
<html>
<div id=“test”></div>
</html>
OPERATOR SCRIPTS - API
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k.callFunction(name, params, callback)
k.setDOM(selector, value)
BINDINGS
Operator Operator
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??? ???
BINDINGS
Operator Operator
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BINDINGS
Operator Operator
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WebSockets
BINDINGS
Operator Operator
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TOPOLOGY - JSON
{ “topology”: { “id”: “test”, “operators”: [], “bindings”: []
} }
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TOPOLOGY - JSON{ “id”: “producer”, “script”: “producer.js”
},
{ “id”: “consumer”, “script”: “consumer.js”, "browser": { "path" : "/consumer", "only" : true
} }
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TOPOLOGY - JSON
{ “from”: “producer”, “to”: “consumer”, “type”: “round_robin”
}
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DEPLOYMENT - JSON
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DEPLOYMENT - JSON
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DEPLOYMENT - JSON
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exec topology.js
DEPLOYMENT - JSON
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Producer Consumer
DYNAMIC DEPLOYMENT
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Producer Consumer
DYNAMIC DEPLOYMENT
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Producer Consumer
DYNAMIC DEPLOYMENT
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Producer Consumer
run script.js [pid]
DYNAMIC DEPLOYMENT
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Producer Consumer
Operator
Operator
Operator
Operator Operator
DYNAMIC DEPLOYMENT
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Producer Consumer
Operator
Operator
Operator
Operator Operatorbind [uid] [uid]
DYNAMIC DEPLOYMENT
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Producer Consumer
Operator
Operator
Operator
Operator Operatorbind [uid] [uid]
DYNAMIC DEPLOYMENT - MIGRATION
Operator Operator Operator
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DYNAMIC DEPLOYMENT - MIGRATION
Operator Operator Operator
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DYNAMIC DEPLOYMENT - MIGRATION
Operator Operator Operator
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migrate [uid] [pid]
DYNAMIC DEPLOYMENT - MIGRATION
Operator Operator
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Operator
MASHUP TOPOLOGY
Stream
TweetRetriever
TweetGeolocate
MarkerCreator
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EXTENDED MASHUP TOPOLOGY
TweetRetriever
TweetGeolocate
Stream
MarkerCreator
REST
MarkerClicker
RetweetGatherer &Geolocate
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EXTENDED MASHUP TOPOLOGY
TweetRetriever
TweetGeolocate
Stream
MarkerCreator
REST
MarkerClicker
RetweetGatherer &Geolocate
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MarkerViewer
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Demo
neha.inf.unisi.ch:10085/map
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