SosGetResultJson

SosGetResultJson is a specific DataSource to parse JSON data.

The class inherits directly from TimeSeriesDataSource.

There are not specific properties for this DataSource.

Parser

The time field formatted as String ISO Date is converted into time in milliseconds.

The other fields are keeping as they are and are forwarded to the result object.

From Server:

{
  "time": "2015-02-16T07:58:52Z",
  "location": {
    "lat": 43.61759959, 
    "lon": 1.42376351, 
    "alt": 195.0
  }
}

After parsing:

{
    timeStamp: 1424073532000,
    data: {
        "location": {
            "lat": 43.61759959, 
            "lon": 1.42376351, 
            "alt": 195.0
        }              
    }
}  

API Reference

Example

import SweJson from 'osh-js/core/datasource/SosGetResultJson.js';

const platformLocationDataSource = new SweJson('android-GPS', {
  protocol: 'ws',
  service: 'SOS',
  endpointUrl: 'sensiasoft.net:8181/sensorhub/sos',
  offeringID: 'urn:mysos:solo:nav2',
  observedProperty: 'http://www.opengis.net/def/property/OGC/0/PlatformLocation',
  startTime: '2015-12-19T21:04:29.231Z',
  endTime: '2015-12-19T21:09:19.675Z',
  replaySpeed: 1.0
});

// Data are received through Broadcast channel in a separate thread.
// When you create a View object, it automatically subscribes to the corresponding datasource channel(s).
// If you don't have view, or don't need, you can directly subscribe to the channel

const locationBroadcastChannel  = new BroadcastChannel(DATASOURCE_DATA_TOPIC + platformLocationDataSource.id);
const locationDivElement = document.getElementById('datasource-gps');

locationBroadcastChannel.onmessage = (message) => {
  if(message.data.type === 'data') {
    locationDivElement.value += JSON.stringify(message.data.values) +'\n';
  }
}

// start streaming onclick
const runButtonElement = document.getElementById('run-datasource-button');
runButtonElement.onclick = () => platformLocationDataSource.connect();

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