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| 1 | +######################################################################### |
| 2 | +# |
| 3 | +# Copyright (C) 2026 OSGeo |
| 4 | +# |
| 5 | +# This program is free software: you can redistribute it and/or modify |
| 6 | +# it under the terms of the GNU General Public License as published by |
| 7 | +# the Free Software Foundation, either version 3 of the License, or |
| 8 | +# (at your option) any later version. |
| 9 | +# |
| 10 | +# This program is distributed in the hope that it will be useful, |
| 11 | +# but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | +# GNU General Public License for more details. |
| 14 | +# |
| 15 | +# You should have received a copy of the GNU General Public License |
| 16 | +# along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 17 | +# |
| 18 | +######################################################################### |
| 19 | +from collections import OrderedDict |
| 20 | + |
| 21 | +from django.conf import settings |
| 22 | +from django.utils.module_loading import import_string |
| 23 | +from django.utils.translation import gettext_lazy as _ |
| 24 | + |
| 25 | +from geonode.services import enumerations |
| 26 | + |
| 27 | + |
| 28 | +class ServiceTypeRegistry: |
| 29 | + def __init__(self): |
| 30 | + self.registry = None |
| 31 | + |
| 32 | + def register(self, service_type, handler, label, OWS=False, **kwargs): |
| 33 | + self.init_registry() |
| 34 | + self.registry[service_type] = { |
| 35 | + "OWS": OWS, |
| 36 | + "handler": handler, |
| 37 | + "label": label, |
| 38 | + **kwargs, |
| 39 | + } |
| 40 | + |
| 41 | + def unregister(self, service_type): |
| 42 | + self.init_registry() |
| 43 | + self.registry.pop(service_type, None) |
| 44 | + |
| 45 | + def init_registry(self): |
| 46 | + if self.registry is not None: |
| 47 | + return |
| 48 | + |
| 49 | + self.registry = OrderedDict() |
| 50 | + self._register_default_service_types() |
| 51 | + self._register_configured_service_types() |
| 52 | + |
| 53 | + def reset(self): |
| 54 | + self.registry = None |
| 55 | + |
| 56 | + def get_available_service_types(self): |
| 57 | + self.init_registry() |
| 58 | + return OrderedDict(self.registry) |
| 59 | + |
| 60 | + def get_handler_class(self, service_type): |
| 61 | + service_type_config = self.get_available_service_types().get(service_type, {}) |
| 62 | + handler = service_type_config.get("handler") |
| 63 | + if isinstance(handler, str): |
| 64 | + return import_string(handler) |
| 65 | + return handler |
| 66 | + |
| 67 | + def _register_default_service_types(self): |
| 68 | + # Keep imports lazy to avoid circular imports during Django app loading. |
| 69 | + from geonode.services.serviceprocessors.arcgis import ArcImageServiceHandler, ArcMapServiceHandler |
| 70 | + from geonode.services.serviceprocessors.wms import GeoNodeServiceHandler, WmsServiceHandler |
| 71 | + |
| 72 | + self.register(enumerations.WMS, WmsServiceHandler, _("Web Map Service"), OWS=True) |
| 73 | + self.register(enumerations.GN_WMS, GeoNodeServiceHandler, _("GeoNode (Web Map Service)"), OWS=True) |
| 74 | + self.register(enumerations.REST_MAP, ArcMapServiceHandler, _("ArcGIS REST MapServer")) |
| 75 | + self.register(enumerations.REST_IMG, ArcImageServiceHandler, _("ArcGIS REST ImageServer")) |
| 76 | + |
| 77 | + def _register_configured_service_types(self): |
| 78 | + for service_type_module_path in getattr(settings, "SERVICES_TYPE_MODULES", []): |
| 79 | + custom_service_type_module = import_string(service_type_module_path) |
| 80 | + for service_type, service_type_config in custom_service_type_module.services_type.items(): |
| 81 | + self.register(service_type, **service_type_config) |
| 82 | + |
| 83 | + |
| 84 | +service_type_registry = ServiceTypeRegistry() |
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