Stanislav Hejny
78 lines
2.3 KiB
Python
78 lines
2.3 KiB
Python
from amqp.adapter.logging_utils import logging_error
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from amqp.model.model import AMQRoute
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# record separator
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RS = ":"
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# null route, in lieu of None value
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NULL_ROUTE = {
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"componentName": "",
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"exchange": None,
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"queue": None,
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"routingKey": "#",
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"timeout": 1,
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"validUntil": 0,
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}
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class AMQRouteFactory:
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"""
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Define the methods to create and validate AMQRoute objects.
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"""
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@staticmethod
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def from_string(data):
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"""
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Builds the AMQRoute from its string form.
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:param data: route string
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:return: AMQRoute object
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"""
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try:
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_keys = data.split(RS)
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if len(_keys) >= 5:
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_i = 0
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_component_name = _keys[_i]
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_i += 1
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_exchange = _keys[_i]
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_i += 1
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_queue = _keys[_i] if _i < len(_keys) else ""
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_i += 1
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_routing_key = _keys[_i] if _i < len(_keys) else ""
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_i += 1
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_timeout = int(_keys[_i]) if _i < len(_keys) else 0
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_i += 1
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_valid_until = int(_keys[_i]) if _i < len(_keys) else 0
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return AMQRoute(
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component_name=_component_name,
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exchange=_exchange,
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queue=_queue,
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key=_routing_key,
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timeout=_timeout,
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valid_until=_valid_until,
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)
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logging_error(
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"AMQRoute incorrect format. AMQRoute expects input as: "
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"'Component-Name:AMQExchange-Name:Queue-Name:Routing-Key:Timeout:Valid-Until', "
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"got: ['%s']",
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data,
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)
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except Exception as err:
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logging_error(
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"%s: AMQRoute incorrect format. AMQRoute expects input as: "
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"'Component-Name:AMQExchange-Name:Queue-Name:Routing-Key:Timeout:Valid-Until', "
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"got: ['%s']",
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err,
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data,
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)
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return NULL_ROUTE
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@staticmethod
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def validate(route_str):
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"""
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Validates the route string.
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:param route_str: route string
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:return: boolean validity indicator
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"""
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if route_str is not None:
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return route_str.count(":") > 4
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return False
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