Files
pyfa/service/marketSources/evemarketdata.py

74 lines
2.6 KiB
Python

# =============================================================================
# Copyright (C) 2010 Diego Duclos
#
# This file is part of pyfa.
#
# pyfa is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# pyfa is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with pyfa. If not, see <http://www.gnu.org/licenses/>.
# =============================================================================
from xml.dom import minidom
from logbook import Logger
from eos.saveddata.price import PriceStatus
from service.network import Network
from service.price import Price
pyfalog = Logger(__name__)
class EveMarketData:
name = 'eve-marketdata.com'
group = 'tranquility'
def __init__(self, priceMap, system, fetchTimeout):
# Try selected system first
self.fetchPrices(priceMap, max(2 * fetchTimeout / 3, 2), system)
# If price was not available - try globally
if priceMap:
self.fetchPrices(priceMap, max(fetchTimeout / 3, 2))
@staticmethod
def fetchPrices(priceMap, fetchTimeout, system=None):
params = {'type_ids': ','.join(str(typeID) for typeID in priceMap)}
if system is not None:
params['system_id'] = system
baseurl = 'https://eve-marketdata.com/api/item_prices.xml'
network = Network.getInstance()
data = network.get(url=baseurl, type=network.PRICES, params=params, timeout=fetchTimeout)
xml = minidom.parseString(data.text)
types = xml.getElementsByTagName('eve').item(0).getElementsByTagName('price')
# Cycle through all types we've got from request
for type_ in types:
# Get data out of each typeID details tree
typeID = int(type_.getAttribute('id'))
try:
price = float(type_.firstChild.data)
except (TypeError, ValueError):
pyfalog.warning('Failed to get price for: {0}', type_)
continue
# eve-marketdata returns 0 if price data doesn't even exist for the item
if price == 0:
continue
priceMap[typeID].update(PriceStatus.fetchSuccess, price)
del priceMap[typeID]
# Price.register(EveMarketData)