django-orion-exporter's Introduction

Orion Exporter

This app is responsible to send every X minutes the configures data to Orion Context Broker.

Installation

To install you must add the package `` to your requirements.

Configuration

To set the data that you want to send to OCB you must configure the correspondent data model. The model must inherit the OrionEntity model from this package and the you must set the following property for the model:

Inheritance

from orion_exporter.models import OrionEntity

class Reading(OrionEntity):
    timestamp = models.DateTimeField()

Property

    @property
    def orion_properties(self):
        """Returns orion translation fields"""
        fields = {
            "<field_name>": self.<field_name>
        }
        _type = "<fiware_data_model_type>"

        return _type, fields

Example:

    @property
    def orion_properties(self):
        """Returns orion translation fields and type"""
        fields = {
            "pm10": self.pm10
        }
        _type = "AirQualityObserved"

        return _type, fields

From this point you are ready to send data to OCB. Before you just need to set in your project settings the task to do it:

# Celery settings for tasks scheduling
CELERY_BEAT_SCHEDULE = {
    'export_to_orion': {
        'task': 'orion_exporter.tasks.send_to_orion',
        'schedule': timedelta(seconds=10),
        # 'schedule': crontab(minute='0', hour='0'),
        'options': {'queue': 'orion_exporter'}
    }
}

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