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# -*- coding: ISO-8859-15 -*-
# =============================================================================
# Copyright (c) 2004, 2006 Sean C. Gillies
# Copyright (c) 2007 STFC <http://www.stfc.ac.uk>
#
# Authors :
# Dominic Lowe <d.lowe@rl.ac.uk>
#
# Contact email: d.lowe@rl.ac.uk
# =============================================================================
"""
Web Coverage Server (WCS) methods and metadata. Factory function.
"""
import urllib2
import etree
from coverage import wcs100, wcs110, wcsBase
def WebCoverageService(url, version=None, xml=None, cookies=None):
''' wcs factory function, returns a version specific WebCoverageService object '''
if version is None:
if xml is None:
reader = wcsBase.WCSCapabilitiesReader()
request = reader.capabilities_url(url)
if cookies is None:
xml = urllib2.urlopen(request).read()
else:
req = urllib2.Request(request)
req.add_header('Cookie', cookies)
xml=urllib2.urlopen(req)
capabilities = etree.etree.fromstring(xml)
version = capabilities.get('version')
del capabilities
if version == '1.0.0':
return wcs100.WebCoverageService_1_0_0.__new__(wcs100.WebCoverageService_1_0_0, url, xml, cookies)
elif version == '1.1.0':
return wcs110.WebCoverageService_1_1_0.__new__(wcs110.WebCoverageService_1_1_0,url, xml, cookies)
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