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5e9a0b43f3
Conflicts: currency_rate_update/services/__init__.py currency_rate_update/services/currency_getter.py currency_rate_update/services/update_service_CA_BOC.py currency_rate_update/services/update_service_CH_ADMIN.py currency_rate_update/services/update_service_ECB.py currency_rate_update/services/update_service_PL_NBP.py currency_rate_update/services/update_service_RO_BNR.py
90 lines
3.8 KiB
Python
90 lines
3.8 KiB
Python
# -*- coding: utf-8 -*-
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# © 2009 Camptocamp
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# © 2014 Dorin Hongu
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# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
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from .currency_getter_interface import CurrencyGetterInterface
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from datetime import datetime, timedelta
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import logging
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_logger = logging.getLogger(__name__)
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class RO_BNRGetter(CurrencyGetterInterface):
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"""Implementation of Currency_getter_factory interface for BNR service"""
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code = 'RO_BNR'
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name = 'National Bank of Romania'
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supported_currency_array = [
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"AED", "AUD", "BGN", "BRL", "CAD", "CHF", "CNY", "CZK", "DKK", "EGP",
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"EUR", "GBP", "HUF", "INR", "JPY", "KRW", "MDL", "MXN", "NOK", "NZD",
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"PLN", "RON", "RSD", "RUB", "SEK", "TRY", "UAH", "USD", "XAU", "XDR",
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"ZAR"]
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def rate_retrieve(self, dom, ns, curr):
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""" Parse a dom node to retrieve-
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currencies data"""
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res = {}
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xpath_rate_currency = "/def:DataSet/def:Body/def:Cube/def:Rate" + \
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"[@currency='%s']/text()" % (curr.upper())
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xpath_rate_ref = "/def:DataSet/def:Body/def:Cube/def:Rate" + \
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"[@currency='%s']/@multiplier" % (curr.upper())
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res['rate_currency'] = float(dom.xpath(xpath_rate_currency,
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namespaces=ns)[0])
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try:
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res['rate_ref'] = float(dom.xpath(xpath_rate_ref,
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namespaces=ns)[0])
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except:
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res['rate_ref'] = 1
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return res
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def get_updated_currency(self, currency_array, main_currency,
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max_delta_days):
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"""implementation of abstract method of Curreny_getter_interface"""
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url = 'http://www.bnr.ro/nbrfxrates.xml'
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# we do not want to update the main currency
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if main_currency in currency_array:
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currency_array.remove(main_currency)
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# Move to new XML lib cf Launchpad bug #645263
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from lxml import etree
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_logger.debug("BNR currency rate service : connecting...")
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rawfile = self.get_url(url)
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dom = etree.fromstring(rawfile)
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adminch_ns = {'def': 'http://www.bnr.ro/xsd'}
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rate_date = dom.xpath('/def:DataSet/def:Body/def:Cube/@date',
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namespaces=adminch_ns)[0]
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rate_date_datetime = datetime.strptime(rate_date, '%Y-%m-%d') + \
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timedelta(days=1)
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self.check_rate_date(rate_date_datetime, max_delta_days)
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# we dynamically update supported currencies
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self.supported_currency_array = dom.xpath(
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"/def:DataSet/def:Body/" + "def:Cube/def:Rate/@currency",
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namespaces=adminch_ns)
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self.supported_currency_array = [
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x.upper() for x in self.supported_currency_array]
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self.supported_currency_array.append('RON')
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self.validate_cur(main_currency)
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if main_currency != 'RON':
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main_curr_data = self.rate_retrieve(dom, adminch_ns, main_currency)
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# 1 MAIN_CURRENCY = main_rate RON
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main_rate = main_curr_data['rate_currency'] / \
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main_curr_data['rate_ref']
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for curr in currency_array:
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self.validate_cur(curr)
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if curr == 'RON':
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rate = main_rate
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else:
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curr_data = self.rate_retrieve(dom, adminch_ns, curr)
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# 1 MAIN_CURRENCY = rate CURR
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if main_currency == 'RON':
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rate = curr_data['rate_ref'] / curr_data['rate_currency']
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else:
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rate = main_rate * curr_data['rate_ref'] / \
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curr_data['rate_currency']
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self.updated_currency[curr] = rate
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_logger.debug("BNR Rate retrieved : 1 " + main_currency + ' = ' +
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str(rate) + ' ' + curr)
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return self.updated_currency, self.log_info
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