Skip to content

Commit

Permalink
Add dynamic layer from GET request to an existing map config (#583)
Browse files Browse the repository at this point in the history 
* dynamically add a layer from GET request to the map config

* add explanatory comment
  • Loading branch information
@giohappy
giohappy authored Nov 12, 2021
1 parent 8e8e9a1 commit d6c7533
Showing 1 changed file with 135 additions and 118 deletions.
253 changes: 135 additions & 118 deletions mapstore2_adapter/plugins/geonode.py
View file
Original file line number Diff line number Diff line change
Expand Up @@ -149,6 +149,15 @@ def convert(self, viewer, request):
else:
layer['featureInfo'] = self.get_layer_featureinfotemplate(layer)
map_layers.append(layer)
# the dynamic layer has already been processed by GeoNode upstream views
# but we can't tell if it was the one from GET params or not, so we parse it again
layer_name = request.GET.get('layer_name')
if layer_name:
for lyr in viewer_obj['map']['layers']:
if lyr['name'] == layer_name:
layer_from_request = self.get_overlay(viewer_obj, lyr, get_wfs_endpoint(request))
if layer_from_request:
map_layers.append(layer_from_request)
data['map']['layers'] = map_layers
except Exception:
# traceback.print_exc()
Expand Down Expand Up @@ -336,130 +345,138 @@ def getBackgrounds(self, viewer, defaults):
logger.debug(tb)
return backgrounds

def get_overlays(self, viewer, request=None):
def get_overlay(self, viewer_obj, layer, wfs_url=''):
sources = viewer_obj['sources']

if 'group' not in layer or layer['group'] != "background":
source = sources[layer['source']]
overlay = {}
if 'url' in source:
if 'ptype' not in source or source['ptype'] != 'gxp_arcrestsource':
overlay['type'] = "wms"
overlay['tileSize'] = getattr(settings, "DEFAULT_TILE_SIZE", 512)
else:
overlay['type'] = "arcgis"
_p_url = parse.urlparse(source['url'])
if _p_url.query:
overlay['params'] = dict(parse.parse_qsl(_p_url.query))
overlay['url'] = source['url']
overlay['bbox'] = {}

for _key, _default in LAYER_PARAMS.items():
if _key in layer:
overlay[_key] = layer[_key]
elif _default:
overlay[_key] = _default

if 'capability' in layer:
capa = layer['capability']
if 'store' in capa:
overlay['store'] = capa['store']
if 'styles' in capa:
overlay['styles'] = capa['styles']
if 'style' in capa:
overlay['style'] = capa['style']
if 'abstract' in capa:
overlay['abstract'] = capa['abstract']
if 'attribution' in capa:
overlay['attribution'] = capa['attribution']
if 'keywords' in capa:
overlay['keywords'] = capa['keywords']
if 'dimensions' in capa and capa['dimensions']:
overlay['dimensions'] = self.get_layer_dimensions(dimensions=capa['dimensions'])
if 'storeType' in capa and capa['storeType'] == 'dataStore':
overlay['search'] = {
"url": wfs_url,
"type": "wfs"
}
if 'llbbox' in capa:
bbox = capa['llbbox']
# Must be in the form xmin, ymin, xmax, ymax
llbbox = [
get_valid_number(bbox[0]),
get_valid_number(bbox[2]),
get_valid_number(bbox[1]),
get_valid_number(bbox[3]),
]
overlay['llbbox'] = llbbox
overlay['bbox']['bounds'] = {
"minx": llbbox[0],
"miny": llbbox[1],
"maxx": llbbox[2],
"maxy": llbbox[3]
}
overlay['bbox']['crs'] = 'EPSG:4326'
elif 'bbox' in capa:
bbox = capa['bbox']
if viewer_obj['map']['projection'] in bbox:
proj = viewer_obj['map']['projection']
bbox = capa['bbox'][proj]
overlay['bbox']['bounds'] = {
"minx": get_valid_number(bbox['bbox'][0]),
"miny": get_valid_number(bbox['bbox'][1]),
"maxx": get_valid_number(bbox['bbox'][2]),
"maxy": get_valid_number(bbox['bbox'][3])
}
overlay['bbox']['crs'] = bbox['srs']

if 'nativeCrs' in layer:
overlay['nativeCrs'] = layer['nativeCrs']
else:
try:
from geonode.layers.models import Layer
_gn_layer = Layer.objects.get(
store=overlay['store'],
alternate=overlay['name'])
if _gn_layer.srid:
overlay['nativeCrs'] = _gn_layer.srid
except Exception:
tb = traceback.format_exc()
logger.debug(tb)

if 'bbox' in layer and not overlay['bbox']:
if 'bounds' in layer['bbox']:
overlay['bbox'] = layer['bbox']
else:
overlay['bbox']['bounds'] = {
"minx": get_valid_number(layer['bbox'][0],
default=layer['bbox'][2],
complementar=True),
"miny": get_valid_number(layer['bbox'][1],
default=layer['bbox'][3],
complementar=True),
"maxx": get_valid_number(layer['bbox'][2],
default=layer['bbox'][0],
complementar=True),
"maxy": get_valid_number(layer['bbox'][3],
default=layer['bbox'][1],
complementar=True)
}
overlay['bbox']['crs'] = layer['srs'] if 'srs' in layer else \
viewer_obj['map']['projection']

overlay['featureInfo'] = self.get_layer_featureinfotemplate(layer)
elif 'name' in layer and layer['name'] == 'Annotations':
overlay = layer

# Restore the id of ms2 layer
if "extraParams" in layer and "msId" in layer["extraParams"]:
overlay["id"] = layer["extraParams"]["msId"]
return overlay
return None

def get_overlays(self, viewer, request=None, layers=None):
overlays = []
selected = None
wfs_url = get_wfs_endpoint(request)
try:
viewer_obj = json.loads(viewer)
layers = viewer_obj['map']['layers']
sources = viewer_obj['sources']
layers = layers if layers else viewer_obj['map']['layers']

for layer in layers:
if 'group' not in layer or layer['group'] != "background":
source = sources[layer['source']]
overlay = {}
if 'url' in source:
if 'ptype' not in source or source['ptype'] != 'gxp_arcrestsource':
overlay['type'] = "wms"
overlay['tileSize'] = getattr(settings, "DEFAULT_TILE_SIZE", 512)
else:
overlay['type'] = "arcgis"
_p_url = parse.urlparse(source['url'])
if _p_url.query:
overlay['params'] = dict(parse.parse_qsl(_p_url.query))
overlay['url'] = source['url']
overlay['bbox'] = {}

for _key, _default in LAYER_PARAMS.items():
if _key in layer:
overlay[_key] = layer[_key]
elif _default:
overlay[_key] = _default

if 'capability' in layer:
capa = layer['capability']
if 'store' in capa:
overlay['store'] = capa['store']
if 'styles' in capa:
overlay['styles'] = capa['styles']
if 'style' in capa:
overlay['style'] = capa['style']
if 'abstract' in capa:
overlay['abstract'] = capa['abstract']
if 'attribution' in capa:
overlay['attribution'] = capa['attribution']
if 'keywords' in capa:
overlay['keywords'] = capa['keywords']
if 'dimensions' in capa and capa['dimensions']:
overlay['dimensions'] = self.get_layer_dimensions(dimensions=capa['dimensions'])
if 'storeType' in capa and capa['storeType'] == 'dataStore':
overlay['search'] = {
"url": get_wfs_endpoint(request),
"type": "wfs"
}
if 'llbbox' in capa:
bbox = capa['llbbox']
# Must be in the form xmin, ymin, xmax, ymax
llbbox = [
get_valid_number(bbox[0]),
get_valid_number(bbox[2]),
get_valid_number(bbox[1]),
get_valid_number(bbox[3]),
]
overlay['llbbox'] = llbbox
overlay['bbox']['bounds'] = {
"minx": llbbox[0],
"miny": llbbox[1],
"maxx": llbbox[2],
"maxy": llbbox[3]
}
overlay['bbox']['crs'] = 'EPSG:4326'
elif 'bbox' in capa:
bbox = capa['bbox']
if viewer_obj['map']['projection'] in bbox:
proj = viewer_obj['map']['projection']
bbox = capa['bbox'][proj]
overlay['bbox']['bounds'] = {
"minx": get_valid_number(bbox['bbox'][0]),
"miny": get_valid_number(bbox['bbox'][1]),
"maxx": get_valid_number(bbox['bbox'][2]),
"maxy": get_valid_number(bbox['bbox'][3])
}
overlay['bbox']['crs'] = bbox['srs']

if 'nativeCrs' in layer:
overlay['nativeCrs'] = layer['nativeCrs']
else:
try:
from geonode.layers.models import Layer
_gn_layer = Layer.objects.get(
store=overlay['store'],
alternate=overlay['name'])
if _gn_layer.srid:
overlay['nativeCrs'] = _gn_layer.srid
except Exception:
tb = traceback.format_exc()
logger.debug(tb)

if 'bbox' in layer and not overlay['bbox']:
if 'bounds' in layer['bbox']:
overlay['bbox'] = layer['bbox']
else:
overlay['bbox']['bounds'] = {
"minx": get_valid_number(layer['bbox'][0],
default=layer['bbox'][2],
complementar=True),
"miny": get_valid_number(layer['bbox'][1],
default=layer['bbox'][3],
complementar=True),
"maxx": get_valid_number(layer['bbox'][2],
default=layer['bbox'][0],
complementar=True),
"maxy": get_valid_number(layer['bbox'][3],
default=layer['bbox'][1],
complementar=True)
}
overlay['bbox']['crs'] = layer['srs'] if 'srs' in layer else \
viewer_obj['map']['projection']

overlay['featureInfo'] = self.get_layer_featureinfotemplate(layer)
elif 'name' in layer and layer['name'] == 'Annotations':
overlay = layer

# Restore the id of ms2 layer
if "extraParams" in layer and "msId" in layer["extraParams"]:
overlay["id"] = layer["extraParams"]["msId"]
overlays.append(overlay)
overlay = self.get_overlay(viewer_obj, layer, wfs_url)
if overlay:
overlays.append(overlay)
if not selected or ('selected' in layer and layer['selected']):
selected = overlay
except Exception:
Expand Down

0 comments on commit d6c7533

Please sign in to comment.