def make_node( data, id, config=None ):
"""
Generate a RAMP layer entry for a WMS.
:param data: The initial payload to RCS
:type data: dict
:param id: An identifier for the layer (as this is unique it is generally supplied from :module:rcs )
:type id: str
:returns: dict -- a RAMP configuration fragment representing the WMS layer
"""
wms_node = { 'id': id }
wms_node['url'] = data['service_url']
wms_node['layerName'] = data['layer']
wms_node['displayName'] = data['layer']
if 'service_name' in data:
wms_node['displayName'] = data['service_name']
wms_node['format'] = 'image/png'
metadata_url, catalogue_url = metadata.get_url( data, config )
if metadata_url:
wms_node['metadataUrl'] = metadata_url
wms_node['catalogueUrl'] = catalogue_url
if 'legend_format' in data:
wms_node['legendMimeType'] = data['legend_format']
fi_node = make_feature_info( data )
if fi_node is not None:
wms_node['featureInfo'] = fi_node
return wms_node
def make_node( data, id, config ):
"""
Generate a RAMP layer entry for an ESRI feature service.
:param data: The initial payload to RCS (should contain a 'service_url' entry)
:type data: dict
:param id: An identifier for the layer (as this is unique it is generally supplied from :module:rcs )
:type id: str
:returns: dict -- a RAMP configuration fragment representing the ESRI layer
"""
node = { 'id': id }
r = requests.get( data['service_url'] + '?f=json' )
svc_data = r.json()
node['url'] = data['service_url']
node['displayName'] = data.get('service_name',None)
node['nameField'] = data.get('display_field',None)
if node.get('displayName',None) is None:
node['displayName'] = svc_data['name']
if node.get('nameField',None) is None:
node['nameField'] = svc_data['displayField']
metadata_url, catalogue_url = metadata.get_url( data, config )
if metadata_url:
node['metadataUrl'] = metadata_url
node['catalogueUrl'] = catalogue_url
node['minScale'] = svc_data.get('minScale',0)
node['maxScale'] = svc_data.get('maxScale',0)
node['datagrid'] = make_data_grid( svc_data )
node['layerExtent'] = make_extent( svc_data )
node['symbology'] = make_symbology( svc_data, data )
node['aliasMap'] = make_alias_mapping( svc_data['fields'] )
node['maxAllowableOffset'] = data.get('maxAllowableOffset', 0)
return node
def make_node(key, json_request, config):
"""
Construct a basic layer node which could be consumed by the viewer.
"""
langs = config['LANGS']
node = {lang: {} for lang in langs}
v1 = None
svc_types = {lang: get_endpoint_type(json_request[lang]['service_url']) for lang in langs}
if len(set(svc_types.values())) > 1:
raise ServiceEndpointException('Mismatched service types across languages {0}'.format(svc_types.values()))
if svc_types.values()[0] in [ServiceTypes.WMS, ServiceTypes.FEATURE]:
v1 = {lang: {} for lang in langs}
for lang in langs:
n = node[lang]
n['id'] = make_id(key, lang)
ltype = svc_types[lang]
n['layerType'] = remapped_types.get(ltype, ltype)
if 'service_type' in json_request[lang] and json_request[lang]['service_type'] != svc_types[lang]:
msg = 'Mismatched service type in {0} object, endpoint identified as {1} but provided as {2}' \
.format(lang, svc_types[lang], json_request[lang]['service_type'])
raise ServiceEndpointException(msg)
n['url'] = json_request[lang]['service_url']
m_url, c_url = metadata.get_url(json_request[lang], config)
if c_url:
node[lang]['metadataUrl'] = m_url
node[lang]['catalogueUrl'] = c_url
n.update(parser_map[ltype](json_request[lang]))
if 'service_name' in json_request[lang]:
# important to do this last so it overwrites anything scraped from the custom parser
n['name'] = json_request[lang]['service_name']
if ltype == ServiceTypes.WMS:
v1[lang] = ogc.make_v1_wms_node(json_request[lang], n)
elif ltype == ServiceTypes.FEATURE:
v1[lang] = esri.make_v1_feature_node(json_request[lang], n)
return node, v1
def make_node( data, id, config ):
"""
Generate a RAMP layer entry for an ESRI feature service.
:param data: The initial payload to RCS (should contain a 'service_url' entry)
:type data: dict
:param id: An identifier for the layer (as this is unique it is generally supplied from :module:rcs )
:type id: str
:returns: dict -- a RAMP configuration fragment representing the ESRI layer
"""
node = { 'id': id }
global _proxies
if 'FEATURE_SERVICE_PROXY' in config:
_proxies = { 'http': config['FEATURE_SERVICE_PROXY'], 'https': config['FEATURE_SERVICE_PROXY']}
r = requests.get( data['service_url'] + '?f=json', proxies=_proxies )
svc_data = r.json()
node['url'] = data['service_url']
node['displayName'] = data.get('service_name',None)
node['nameField'] = data.get('display_field',None)
if node.get('displayName',None) is None:
node['displayName'] = svc_data['name']
if node.get('nameField',None) is None:
node['nameField'] = svc_data['displayField']
metadata_url, catalogue_url = metadata.get_url( data, config )
if metadata_url:
node['metadataUrl'] = metadata_url
node['catalogueUrl'] = catalogue_url
node['minScale'] = svc_data.get('minScale',0)
node['maxScale'] = svc_data.get('maxScale',0)
node['datagrid'] = make_data_grid( svc_data )
node['layerExtent'] = make_extent( svc_data )
node['symbology'] = make_symbology( svc_data, data )
node['aliasMap'] = make_alias_mapping( svc_data['fields'] )
if 'max_allowable_offset' in data:
node['maxAllowableOffset'] = data['max_allowable_offset']
if 'loading_mode' in data:
node['mode'] = data['loading_mode']
elif test_small_layer( node['url'], svc_data ):
node['mode'] = 'snapshot'
node['geometryType'] = svc_data['geometryType']
return node
