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eiffellib-2.4.1
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مشاهده بیشترتوضیحات
Python library for sending and receiving Eiffel events
| ویژگی | مقدار |
|---|---|
| سیستم عامل | - |
| نام فایل | eiffellib-2.4.1 |
| نام | eiffellib |
| نسخه کتابخانه | 2.4.1 |
| نگهدارنده | [] |
| ایمیل نگهدارنده | [] |
| نویسنده | Tobias Persson |
| ایمیل نویسنده | tobiaspn@axis.com |
| آدرس صفحه اصلی | https://github.com/eiffel-community/eiffel-pythonlib |
| آدرس اینترنتی | https://pypi.org/project/eiffellib/ |
| مجوز | Apache License, Version 2.0 |
#########
Eiffellib
#########
.. image:: https://img.shields.io/badge/Stage-Sandbox-yellow.svg
:target: https://github.com/eiffel-community/community/blob/master/PROJECT_LIFECYCLE.md#stage-sandbox
Eiffellib is a python library for subscribing to and publishing Eiffel events to a message-broker.
Description
===========
Eiffellib solves the problem of publishing Eiffel events and subscribing to events, removing the need of knowing how to connect to a message-broker or how to utilize the protocol it supplies.
With Eiffellib you can start subscribing to and publish valid Eiffel messages quickly and to get a feel for the event protocol.
It is designed to be fast and easy to start using while still being production quality.
Documentation: https://eiffellib.readthedocs.io/en/latest/
Features
========
- Simple subscription and publishing of Eiffel events.
- Event building assistance with event validation on receive and publish.
- Following a context link.
Installation
============
Install the project by running:
pip install eiffellib[rabbitmq]
If you only want to use the Eiffel message definitions leave out the optional dependency:
pip install eiffellib
Examples
========
Start RabbitMQ
--------------
In order for these examples to work you need a RabbitMQ server:
.. code-block::
# From https://hub.docker.com/_/rabbitmq
docker run -d --hostname my-rabbit --name some-rabbit -p 8080:15672 -p 5672:5672 rabbitmq:3-management
Subscribing to an event
-----------------------
.. code-block:: python
import time
from eiffellib.subscribers import RabbitMQSubscriber
def callback(event, context):
print(event.pretty)
SUBSCRIBER = RabbitMQSubscriber(host="127.0.0.1", port=5672, ssl=False,
queue="eiffel", exchange="amq.fanout")
SUBSCRIBER.subscribe("EiffelActivityTriggeredEvent", callback)
SUBSCRIBER.start()
while True:
time.sleep(0.1)
Publishing an event
-------------------
.. code-block:: python
from eiffellib.publishers import RabbitMQPublisher
from eiffellib.events import EiffelActivityTriggeredEvent
PUBLISHER = RabbitMQPublisher(host="127.0.0.1", exchange="amq.fanout", ssl=False,
port=5672, routing_key=None)
PUBLISHER.start()
ACTIVITY_TRIGGERED = EiffelActivityTriggeredEvent()
ACTIVITY_TRIGGERED.data.add("name", "Test activity")
PUBLISHER.send_event(ACTIVITY_TRIGGERED)
PUBLISHER.wait_for_unpublished_events()
Deprecation of routing key
--------------------------
The "routing_key" argument in the RabbitMQPublisher class has been deprecated.
This deprecation also affects the default value of the "routing_key" argument and you will be getting warnings while running.
The reason for this change is due to a misunderstanding of how routing keys are supposed to be used when eiffellib was first created.
Each event will now be able to generate their own routing key every time the event is sent.
This routing key is by default "eiffel._.$event_type._._" where the different values are "eiffel.$family.$event_type.$tag.$domainid".
Please refer to https://eiffel-community.github.io/eiffel-sepia/rabbitmq-message-broker.html for more information about routing keys.
To change to the new routing key behavior (and thus removing the warning), please set "routing_key" to "None" when initializing a new RabbitMQPublisher.
.. code-block:: python
PUBLISHER = RabbitMQPublisher(host="127.0.0.1", exchange="amq.fanout", ssl=False,
port=5672, routing_key=None)
In order to change "$family", "$tag" or "$domainid" in the routing key, they have to be set on the events.
.. code-block:: python
PUBLISHER = RabbitMQPublisher(host="127.0.0.1", exchange="amq.fanout", ssl=False,
port=5672, routing_key=None)
EVENT = EiffelActivityTriggeredEvent(family="myfamily", tag="mytag", domain_id="mydomain")
PUBLISHER.send_event(EVENT)
Contribute
==========
- Issue Tracker: https://github.com/eiffel-community/eiffel-pythonlib/issues
- Source Code: https://github.com/eiffel-community/eiffel-pythonlib
Support
=======
If you are having issues, please let us know.
There is a mailing list at: eiffel-pythonlib-maintainers@google-groups.com
or just write an Issue.
نیازمندی
| مقدار | نام |
|---|---|
| <4,>=3.0.0 | jsonschema |
| - | importlib-metadata |
| <2,>=1.0.1 | pika |
| - | pytest |
| - | pytest-cov |
نحوه نصب
نصب پکیج whl eiffellib-2.4.1:
pip install eiffellib-2.4.1.whl
نصب پکیج tar.gz eiffellib-2.4.1:
pip install eiffellib-2.4.1.tar.gz