span8
span4
span8
span4
FME Workbench can be used to build a workspace that will check datasets or services for the desired outcome,changed values or values that meet certain criteria.These can then be run regularly on FME Server,on a schedule.
If data is returned,change identified or criteria met the workspace can trigger events (subscriptions).This could be data processing or sending a notification.
In this tutorial we will be using the OpenWeatherMapForcaster to check the weather and send a notification to FME Server about the current conditions.
weatherupdates-begin.fmw
weatherupdates-complete.fmw
Please download theOpenWeatherMapForecaster transformerfrom the FME Hub.You will need to sign up for an api key fromOpenWeatherMap.
This transformer takes point geometry to return the weather forecast,so you will need to create a point of interest (where you want weather forecasts) in FME.
Some useful coordinates may be:
Convention Centre (FME UC location): lat: 49.2892260,lon: -123.1169553
亚搏在线Safe Software office: lat: 49.138036 lon: -122.857629
You can also find your own lat/lon coordinates using Google Maps.
Enter the coordinates into the Creator by putting the lon value in the ‘X Value' and the lat value into the ‘Y Value'.To do this you will need to click on the [...] next to the ‘Geometry Object: Point'.
Run the workspace and inspect the output.
In the OpenWeatherMapForecaster,set the Weather to ‘Current' and enter the API Key.
Now we want to create a notification message.Add an AttributeCreator and construct your message using the outputs from the OpenWeatherMapForecaster.
For example:
New Attribute: Weather Message
Attribute Value: Right now the weather is a @Value(weather_description).Cloud cover is @Value(clouds)%.
We need somewhere to send this message,so we will send it to a topic on FME Server.Open the Web UI for FME Server,and go to Notifications > Topics.Add a new topic,called Weather_Alert.You should also see the option for Topic Monitoring.Select the Weather_Alert topic and press the play button to start monitoring.DO NOT close this tab,we will want to check back here after running our weather workspace.
Back in workbench,add an FMEServerNotifier and open the parameters.Add a connection to FME Server,select the Weather_Alert topic,and for the content choose your weather message attribute.
Run the workspace.Once complete,check back on your notifications page open in your browser.You should see your message appear under the topic monitoring.
As a stretch,can you adapt the workspace to check the future weather forecast and notify based on different weather events?
Hint: Check out WeatherUpdates-Complete.fmw
You should see the message that you constructed in the AttributeCreator appear as a topic message in FME Server,when monitoring the Weather_Alert topic.
You could create a subscription that is triggered by this topic that can alert someone about upcoming weather conditions,such as sending an email or SMS.
HTTP POST Requests to FME Server from Node.js
Streaming features from PostGIS to FME using WebSockets
FME Server as a WebHook for littleBits
Publish a littleBits workspace as an FME Server Workspace Subscription
Posting to the littleBits cloudBit
Streaming features from PostGIS to Amazon SQS - Process in FME
© 2019 亚搏在线Safe Software Inc |Legal