def create_style(request, json_data, layer, gs, is_preview=False):
name = json_data.get('name')
if is_preview:
name = name + '__tmp'
is_default = json_data.get('is_default', False)
is_default = utils.set_default_style(layer,
gs,
is_preview=is_preview,
is_default=is_default)
style = Style(name=name,
title=json_data.get('title'),
is_default=is_default,
minscale=json_data.get('minscale'),
maxscale=json_data.get('maxscale'),
type='US')
style.save()
style_layer = StyleLayer(style=style, layer=layer)
style_layer.save()
for r in json_data.get('rules'):
json_rule = r.get('rule')
filter_text = ""
if json_rule.get('filter').__len__() != 0:
filter_text = str(json.dumps(json_rule.get('filter')))
rule = Rule(style=style,
name=json_rule.get('name'),
title=json_rule.get('title'),
abstract='',
filter=filter_text,
minscale=json_rule.get('minscale'),
maxscale=json_rule.get('maxscale'),
order=json_rule.get('order'))
rule.save()
for sym in r.get('symbolizers'):
if sym.get('type') == 'PolygonSymbolizer':
json_sym = json.loads(sym.get('json'))
symbolizer = PolygonSymbolizer(
rule=rule,
order=int(sym.get('order')),
fill=json_sym.get('fill'),
fill_opacity=json_sym.get('fill_opacity'),
stroke=json_sym.get('stroke'),
stroke_width=json_sym.get('stroke_width'),
stroke_opacity=json_sym.get('stroke_opacity'),
stroke_dash_array=json_sym.get('stroke_dash_array'))
symbolizer.save()
elif sym.get('type') == 'LineSymbolizer':
json_sym = json.loads(sym.get('json'))
symbolizer = LineSymbolizer(
rule=rule,
order=int(sym.get('order')),
stroke=json_sym.get('stroke'),
stroke_width=json_sym.get('stroke_width'),
stroke_opacity=json_sym.get('stroke_opacity'),
stroke_dash_array=json_sym.get('stroke_dash_array'))
symbolizer.save()
elif sym.get('type') == 'MarkSymbolizer':
json_sym = json.loads(sym.get('json'))
symbolizer = MarkSymbolizer(
rule=rule,
order=int(sym.get('order')),
opacity=json_sym.get('opacity'),
size=json_sym.get('size'),
rotation=json_sym.get('rotation'),
well_known_name=json_sym.get('well_known_name'),
fill=json_sym.get('fill'),
fill_opacity=json_sym.get('fill_opacity'),
stroke=json_sym.get('stroke'),
stroke_width=json_sym.get('stroke_width'),
stroke_opacity=json_sym.get('stroke_opacity'),
stroke_dash_array=json_sym.get('stroke_dash_array'))
symbolizer.save()
elif sym.get('type') == 'ExternalGraphicSymbolizer':
json_sym = json.loads(sym.get('json'))
symbolizer = ExternalGraphicSymbolizer(
rule=rule,
order=int(sym.get('order')),
opacity=json_sym.get('opacity'),
size=json_sym.get('size'),
rotation=json_sym.get('rotation'),
online_resource=json_sym.get('online_resource'),
format=json_sym.get('format'))
symbolizer.save()
elif sym.get('type') == 'TextSymbolizer':
json_sym = json.loads(sym.get('json'))
symbolizer = TextSymbolizer(
rule=rule,
order=int(sym.get('order')),
label=json_sym.get('label'),
font_family=json_sym.get('font_family'),
font_size=json_sym.get('font_size'),
font_weight=json_sym.get('font_weight'),
font_style=json_sym.get('font_style'),
halo_fill=json_sym.get('halo_fill'),
halo_fill_opacity=json_sym.get('halo_fill_opacity'),
halo_radius=json_sym.get('halo_radius'),
fill=json_sym.get('fill'),
fill_opacity=json_sym.get('fill_opacity'),
)
symbolizer.save()
sld_body = sld_builder.build_sld(layer, style)
if is_preview:
if gs.createOverwrittenStyle(style.name, sld_body, True):
return style
else:
if gs.createStyle(style.name, sld_body):
if not is_preview:
gs.setLayerStyle(layer, style.name, style.is_default)
return style
def update_style(request, json_data, layer, gs, style, is_preview=False):
is_default = json_data.get('is_default', False)
is_default = utils.set_default_style(layer,
gs,
style=style,
is_preview=is_preview,
is_default=is_default)
style.title = json_data.get('title')
if json_data.get('minscale') != '':
style.minscale = json_data.get('minscale')
else:
style.minscale = -1
if json_data.get('maxscale') != '':
style.maxscale = json_data.get('maxscale')
else:
style.maxscale = -1
style.is_default = is_default
style.save()
rules = Rule.objects.filter(style=style)
for ru in rules:
symbolizers = Symbolizer.objects.filter(rule=ru)
for symbolizer in symbolizers:
symbolizer.delete()
ru.delete()
for r in json_data.get('rules'):
json_rule = r.get('rule')
filter_text = ""
if json_rule.get('filter').__len__() != 0:
filter_text = str(json.dumps(json_rule.get('filter')))
if json_data.get('minscale') != '':
minscale = json_rule.get('minscale')
else:
minscale = -1
if json_data.get('maxscale') != '':
maxscale = json_rule.get('maxscale')
else:
maxscale = -1
rule = Rule(style=style,
name=json_rule.get('name'),
title=json_rule.get('title'),
abstract='',
filter=filter_text,
minscale=minscale,
maxscale=maxscale,
order=json_rule.get('order'))
rule.save()
for sym in r.get('symbolizers'):
if sym.get('type') == 'PolygonSymbolizer':
json_sym = json.loads(sym.get('json'))
symbolizer = PolygonSymbolizer(
rule=rule,
order=int(sym.get('order')),
fill=json_sym.get('fill'),
fill_opacity=json_sym.get('fill_opacity'),
stroke=json_sym.get('stroke'),
stroke_width=json_sym.get('stroke_width'),
stroke_opacity=json_sym.get('stroke_opacity'),
stroke_dash_array=json_sym.get('stroke_dash_array'))
symbolizer.save()
elif sym.get('type') == 'LineSymbolizer':
json_sym = json.loads(sym.get('json'))
symbolizer = LineSymbolizer(
rule=rule,
order=int(sym.get('order')),
stroke=json_sym.get('stroke'),
stroke_width=json_sym.get('stroke_width'),
stroke_opacity=json_sym.get('stroke_opacity'),
stroke_dash_array=json_sym.get('stroke_dash_array'))
symbolizer.save()
elif sym.get('type') == 'MarkSymbolizer':
json_sym = json.loads(sym.get('json'))
symbolizer = MarkSymbolizer(
rule=rule,
order=int(sym.get('order')),
opacity=json_sym.get('opacity'),
size=json_sym.get('size'),
rotation=json_sym.get('rotation'),
well_known_name=json_sym.get('well_known_name'),
fill=json_sym.get('fill'),
fill_opacity=json_sym.get('fill_opacity'),
stroke=json_sym.get('stroke'),
stroke_width=json_sym.get('stroke_width'),
stroke_opacity=json_sym.get('stroke_opacity'),
stroke_dash_array=json_sym.get('stroke_dash_array'))
symbolizer.save()
elif sym.get('type') == 'ExternalGraphicSymbolizer':
json_sym = json.loads(sym.get('json'))
symbolizer = ExternalGraphicSymbolizer(
rule=rule,
order=int(sym.get('order')),
opacity=json_sym.get('opacity'),
size=json_sym.get('size'),
rotation=json_sym.get('rotation'),
online_resource=json_sym.get('online_resource'),
format=json_sym.get('format'))
symbolizer.save()
elif sym.get('type') == 'TextSymbolizer':
json_sym = json.loads(sym.get('json'))
symbolizer = TextSymbolizer(
rule=rule,
order=int(sym.get('order')),
label=json_sym.get('label'),
font_family=json_sym.get('font_family'),
font_size=json_sym.get('font_size'),
font_weight=json_sym.get('font_weight'),
font_style=json_sym.get('font_style'),
halo_fill=json_sym.get('halo_fill'),
halo_fill_opacity=json_sym.get('halo_fill_opacity'),
halo_radius=json_sym.get('halo_radius'),
fill=json_sym.get('fill'),
fill_opacity=json_sym.get('fill_opacity'),
)
symbolizer.save()
sld_body = sld_builder.build_sld(layer, style)
if is_preview:
if gs.createOverwrittenStyle(style.name, sld_body, True):
return style
else:
if gs.updateStyle(layer, style.name, sld_body):
gs.setLayerStyle(layer, style.name, style.is_default)
return style
else:
# try to recover from inconsistent gvsigol - geoserver status
if utils.reset_geoserver_style(gs, layer, style):
gs.setLayerStyle(layer, style.name, style.is_default)
return style
def create_style(request, json_data, layer_id, is_preview=False):
layer = Layer.objects.get(id=int(layer_id))
datastore = layer.datastore
workspace = datastore.workspace
gs = geographic_servers.get_instance().get_server_by_id(
workspace.server.id)
layer_styles = StyleLayer.objects.filter(layer=layer)
is_default = False
if not is_preview:
is_default = json_data.get('is_default')
if is_default:
for ls in layer_styles:
s = Style.objects.get(id=ls.style.id)
s.is_default = False
s.save()
else:
has_default_style = False
for ls in layer_styles:
s = Style.objects.get(id=ls.style.id)
if s.is_default:
has_default_style = True
if not has_default_style:
is_default = True
name = json_data.get('name')
if is_preview:
name = name + '__tmp'
is_default = False
style = Style(name=name,
title=json_data.get('title'),
is_default=is_default,
type='IN')
if json_data.get('minscale') != '':
style.minscale = json_data.get('minscale')
else:
style.minscale = -1
if json_data.get('maxscale') != '':
style.maxscale = json_data.get('maxscale')
else:
style.maxscale = -1
style.save()
style_layer = StyleLayer(style=style, layer=layer)
style_layer.save()
for r in json_data.get('rules'):
json_rule = r.get('rule')
filter_text = ""
if json_rule.get('filter').__len__() != 0:
filter_text = str(json.dumps(json_rule.get('filter')))
rule = Rule(style=style,
name=json_rule.get('name'),
title=json_rule.get('title'),
abstract='',
filter=filter_text,
minscale=json_rule.get('minscale'),
maxscale=json_rule.get('maxscale'),
order=json_rule.get('order'))
rule.save()
for sym in r.get('symbolizers'):
if sym.get('type') == 'PolygonSymbolizer':
json_sym = json.loads(sym.get('json'))
symbolizer = PolygonSymbolizer(
rule=rule,
order=int(sym.get('order')),
fill=json_sym.get('fill'),
fill_opacity=json_sym.get('fill_opacity'),
stroke=json_sym.get('stroke'),
stroke_width=json_sym.get('stroke_width'),
stroke_opacity=json_sym.get('stroke_opacity'),
stroke_dash_array=json_sym.get('stroke_dash_array'))
symbolizer.save()
elif sym.get('type') == 'LineSymbolizer':
json_sym = json.loads(sym.get('json'))
symbolizer = LineSymbolizer(
rule=rule,
order=int(sym.get('order')),
stroke=json_sym.get('stroke'),
stroke_width=json_sym.get('stroke_width'),
stroke_opacity=json_sym.get('stroke_opacity'),
stroke_dash_array=json_sym.get('stroke_dash_array'))
symbolizer.save()
elif sym.get('type') == 'MarkSymbolizer':
json_sym = json.loads(sym.get('json'))
symbolizer = MarkSymbolizer(
rule=rule,
order=int(sym.get('order')),
opacity=json_sym.get('opacity'),
size=json_sym.get('size'),
rotation=json_sym.get('rotation'),
well_known_name=json_sym.get('well_known_name'),
fill=json_sym.get('fill'),
fill_opacity=json_sym.get('fill_opacity'),
stroke=json_sym.get('stroke'),
stroke_width=json_sym.get('stroke_width'),
stroke_opacity=json_sym.get('stroke_opacity'),
stroke_dash_array=json_sym.get('stroke_dash_array'))
symbolizer.save()
elif sym.get('type') == 'ExternalGraphicSymbolizer':
json_sym = json.loads(sym.get('json'))
symbolizer = ExternalGraphicSymbolizer(
rule=rule,
order=int(sym.get('order')),
opacity=json_sym.get('opacity'),
size=json_sym.get('size'),
rotation=json_sym.get('rotation'),
online_resource=json_sym.get('online_resource'),
format=json_sym.get('format'))
symbolizer.save()
elif sym.get('type') == 'TextSymbolizer':
json_sym = json.loads(sym.get('json'))
symbolizer = TextSymbolizer(
rule=rule,
order=int(sym.get('order')),
label=json_sym.get('label'),
font_family=json_sym.get('font_family'),
font_size=json_sym.get('font_size'),
font_weight=json_sym.get('font_weight'),
font_style=json_sym.get('font_style'),
halo_fill=json_sym.get('halo_fill'),
halo_fill_opacity=json_sym.get('halo_fill_opacity'),
halo_radius=json_sym.get('halo_radius'),
fill=json_sym.get('fill'),
fill_opacity=json_sym.get('fill_opacity'),
)
symbolizer.save()
sld_body = sld_builder.build_sld(layer, style)
if is_preview:
if gs.createOverwrittenStyle(style.name, sld_body, True):
return True
else:
return False
else:
if gs.createStyle(style.name, sld_body):
if not is_preview:
gs.setLayerStyle(layer, style.name, style.is_default)
return True
else:
return False
def create_default_style(layer_id, style_name, style_type, geom_type, count):
layer = Layer.objects.get(id=int(layer_id))
minscaledenominator = -1
maxscaledenominator = -1
if count and count > 200000:
minscaledenominator = 0
maxscaledenominator = 50000
style = Style(name=style_name,
title=_('Default style for: ') + layer.title,
is_default=True,
type=style_type,
minscale=minscaledenominator,
maxscale=maxscaledenominator)
style.save()
style_layer = StyleLayer(style=style, layer=layer)
style_layer.save()
if style.is_default:
layer_styles = StyleLayer.objects.filter(layer=layer)
for ls in layer_styles:
s = Style.objects.get(id=ls.style.id)
s.is_default = False
symbol_type = None
if geom.isPoint(geom_type):
symbol_type = 'MarkSymbolizer'
elif geom.isLine(geom_type):
symbol_type = 'LineSymbolizer'
elif geom.isPolygon(geom_type):
symbol_type = 'PolygonSymbolizer'
elif geom.isRaster(geom_type):
symbol_type = 'RasterSymbolizer'
rule = Rule(style=style,
name='Default symbol',
title=_('Default symbol'),
abstract='',
filter=str(""),
minscale=minscaledenominator,
maxscale=maxscaledenominator,
order=0)
rule.save()
if symbol_type == 'PolygonSymbolizer':
symbolizer = PolygonSymbolizer(rule=rule,
order=0,
fill='#383838',
fill_opacity=0.6,
stroke='#000000',
stroke_width=1,
stroke_opacity=1.0,
stroke_dash_array='none')
symbolizer.save()
elif symbol_type == 'LineSymbolizer':
symbolizer = LineSymbolizer(rule=rule,
order=0,
stroke='#000000',
stroke_width=1,
stroke_opacity=1.0,
stroke_dash_array='none')
symbolizer.save()
elif symbol_type == 'MarkSymbolizer':
symbolizer = MarkSymbolizer(rule=rule,
order=0,
opacity=1.0,
size=8,
rotation=0,
well_known_name='circle',
fill='#383838',
fill_opacity=0.6,
stroke='#000000',
stroke_width=1,
stroke_opacity=1.0,
stroke_dash_array='none')
symbolizer.save()
elif symbol_type == 'RasterSymbolizer':
color_map = ColorMap(type='ramp', extended=False)
color_map.save()
symbolizer = RasterSymbolizer(rule=rule,
color_map=color_map,
order=0,
opacity=1.0)
symbolizer.save()
sld_body = sld_builder.build_sld(layer, style)
return sld_body
def update_style(request, json_data, layer_id, style_id, is_preview=False):
style = Style.objects.get(id=int(style_id))
layer = Layer.objects.get(id=int(layer_id))
layer_styles = StyleLayer.objects.filter(layer=layer)
style_is_default = False
if not is_preview:
style_is_default = json_data.get('is_default')
if style_is_default:
for ls in layer_styles:
s = Style.objects.get(id=ls.style.id)
s.is_default = False
s.save()
datastore = layer.datastore
workspace = datastore.workspace
mapservice.setLayerStyle(layer, style.name, style.is_default)
else:
has_default_style = False
for ls in layer_styles:
s = Style.objects.get(id=ls.style.id)
if s != style and s.is_default:
has_default_style = True
if not has_default_style:
datastore = layer.datastore
workspace = datastore.workspace
style_is_default = True
mapservice.setLayerStyle(layer, style.name, True)
style.title = json_data.get('title')
if json_data.get('minscale') != '':
style.minscale = json_data.get('minscale')
else:
style.minscale = -1
if json_data.get('maxscale') != '':
style.maxscale = json_data.get('maxscale')
else:
style.maxscale = -1
style.is_default = style_is_default
style.save()
rules = Rule.objects.filter(style=style)
for ru in rules:
symbolizers = Symbolizer.objects.filter(rule=ru)
for symbolizer in symbolizers:
symbolizer.delete()
ru.delete()
for r in json_data.get('rules'):
json_rule = r.get('rule')
filter_text = ""
if json_rule.get('filter').__len__() != 0:
filter_text = str(json.dumps(json_rule.get('filter')))
if json_data.get('minscale') != '':
minscale = json_rule.get('minscale')
else:
minscale = -1
if json_data.get('maxscale') != '':
maxscale = json_rule.get('maxscale')
else:
maxscale = -1
rule = Rule(style=style,
name=json_rule.get('name'),
title=json_rule.get('title'),
abstract='',
filter=filter_text,
minscale=minscale,
maxscale=maxscale,
order=json_rule.get('order'))
rule.save()
for sym in r.get('symbolizers'):
if sym.get('type') == 'PolygonSymbolizer':
json_sym = json.loads(sym.get('json'))
symbolizer = PolygonSymbolizer(
rule=rule,
order=int(sym.get('order')),
fill=json_sym.get('fill'),
fill_opacity=json_sym.get('fill_opacity'),
stroke=json_sym.get('stroke'),
stroke_width=json_sym.get('stroke_width'),
stroke_opacity=json_sym.get('stroke_opacity'),
stroke_dash_array=json_sym.get('stroke_dash_array'))
symbolizer.save()
elif sym.get('type') == 'LineSymbolizer':
json_sym = json.loads(sym.get('json'))
symbolizer = LineSymbolizer(
rule=rule,
order=int(sym.get('order')),
stroke=json_sym.get('stroke'),
stroke_width=json_sym.get('stroke_width'),
stroke_opacity=json_sym.get('stroke_opacity'),
stroke_dash_array=json_sym.get('stroke_dash_array'))
symbolizer.save()
elif sym.get('type') == 'MarkSymbolizer':
json_sym = json.loads(sym.get('json'))
symbolizer = MarkSymbolizer(
rule=rule,
order=int(sym.get('order')),
opacity=json_sym.get('opacity'),
size=json_sym.get('size'),
rotation=json_sym.get('rotation'),
well_known_name=json_sym.get('well_known_name'),
fill=json_sym.get('fill'),
fill_opacity=json_sym.get('fill_opacity'),
stroke=json_sym.get('stroke'),
stroke_width=json_sym.get('stroke_width'),
stroke_opacity=json_sym.get('stroke_opacity'),
stroke_dash_array=json_sym.get('stroke_dash_array'))
symbolizer.save()
elif sym.get('type') == 'ExternalGraphicSymbolizer':
json_sym = json.loads(sym.get('json'))
symbolizer = ExternalGraphicSymbolizer(
rule=rule,
order=int(sym.get('order')),
opacity=json_sym.get('opacity'),
size=json_sym.get('size'),
rotation=json_sym.get('rotation'),
online_resource=json_sym.get('online_resource'),
format=json_sym.get('format'))
symbolizer.save()
elif sym.get('type') == 'TextSymbolizer':
json_sym = json.loads(sym.get('json'))
symbolizer = TextSymbolizer(
rule=rule,
order=int(sym.get('order')),
label=json_sym.get('label'),
font_family=json_sym.get('font_family'),
font_size=json_sym.get('font_size'),
font_weight=json_sym.get('font_weight'),
font_style=json_sym.get('font_style'),
fill=json_sym.get('fill'),
fill_opacity=json_sym.get('fill_opacity'),
halo_fill=json_sym.get('halo_fill'),
halo_fill_opacity=json_sym.get('halo_fill_opacity'),
halo_radius=json_sym.get('halo_radius'),
anchor_point_x=json_sym.get('anchor_point_x'),
anchor_point_y=json_sym.get('anchor_point_y'),
)
symbolizer.save()
sld_body = sld_builder.build_sld(layer, style)
if is_preview:
if mapservice.createOverwrittenStyle(style.name, sld_body, True):
return True
else:
return False
else:
if mapservice.updateStyle(layer, style.name, sld_body):
mapservice.setLayerStyle(layer, style.name, style.is_default)
return True
else:
return False
def get_sld(request, type, json_data, layer_id, single_symbol=False):
layer = Layer.objects.get(id=layer_id)
layer.name = layer.datastore.workspace.name + ':' + layer.name
is_default = False
if json_data.get('is_default'):
is_default = json_data.get('is_default')
style = Style(name=json_data.get('name'),
title=json_data.get('title'),
is_default=is_default,
type=type)
style.save()
for r in json_data.get('rules'):
json_rule = r.get('rule')
filter_text = ""
if json_rule.get('filter').__len__() != 0:
filter_text = str(json.dumps(json_rule.get('filter')))
rule = Rule(style=style,
name=json_rule.get('name'),
title=json_rule.get('title'),
abstract='',
filter=filter_text,
minscale=json_rule.get('minscale'),
maxscale=json_rule.get('maxscale'),
order=json_rule.get('order'))
rule.save()
for sym in r.get('symbolizers'):
if sym.get('type') == 'PolygonSymbolizer':
json_sym = json.loads(sym.get('json'))
symbolizer = PolygonSymbolizer(
rule=rule,
order=int(sym.get('order')),
fill=json_sym.get('fill'),
fill_opacity=json_sym.get('fill_opacity'),
stroke=json_sym.get('stroke'),
stroke_width=json_sym.get('stroke_width'),
stroke_opacity=json_sym.get('stroke_opacity'),
stroke_dash_array=json_sym.get('stroke_dash_array'))
symbolizer.save()
elif sym.get('type') == 'LineSymbolizer':
json_sym = json.loads(sym.get('json'))
symbolizer = LineSymbolizer(
rule=rule,
order=int(sym.get('order')),
stroke=json_sym.get('stroke'),
stroke_width=json_sym.get('stroke_width'),
stroke_opacity=json_sym.get('stroke_opacity'),
stroke_dash_array=json_sym.get('stroke_dash_array'))
symbolizer.save()
elif sym.get('type') == 'MarkSymbolizer':
json_sym = json.loads(sym.get('json'))
symbolizer = MarkSymbolizer(
rule=rule,
order=int(sym.get('order')),
opacity=json_sym.get('opacity'),
size=json_sym.get('size'),
rotation=json_sym.get('rotation'),
well_known_name=json_sym.get('well_known_name'),
fill=json_sym.get('fill'),
fill_opacity=json_sym.get('fill_opacity'),
stroke=json_sym.get('stroke'),
stroke_width=json_sym.get('stroke_width'),
stroke_opacity=json_sym.get('stroke_opacity'),
stroke_dash_array=json_sym.get('stroke_dash_array'))
symbolizer.save()
elif sym.get('type') == 'ExternalGraphicSymbolizer':
json_sym = json.loads(sym.get('json'))
symbolizer = ExternalGraphicSymbolizer(
rule=rule,
order=int(sym.get('order')),
opacity=json_sym.get('opacity'),
size=json_sym.get('size'),
rotation=json_sym.get('rotation'),
online_resource=json_sym.get('online_resource'),
format=json_sym.get('format'))
symbolizer.save()
elif sym.get('type') == 'TextSymbolizer':
json_sym = json.loads(sym.get('json'))
symbolizer = TextSymbolizer(
rule=rule,
order=int(sym.get('order')),
label=json_sym.get('label'),
font_family=json_sym.get('font_family'),
font_size=json_sym.get('font_size'),
font_weight=json_sym.get('font_weight'),
font_style=json_sym.get('font_style'),
halo_fill=json_sym.get('halo_fill'),
halo_fill_opacity=json_sym.get('halo_fill_opacity'),
halo_radius=json_sym.get('halo_radius'),
fill=json_sym.get('fill'),
fill_opacity=json_sym.get('fill_opacity'),
anchor_point_x=json_sym.get('anchor_point_x'),
anchor_point_y=json_sym.get('anchor_point_y'),
)
symbolizer.save()
sld_body = sld_builder.build_sld(layer, style, single_symbol)
style.delete()
return sld_body