[ENG-5494] simplest simple json

share/search/search_params.py

@@ -59,6 +59,7 @@
 class BaseTroveParams:
     iri_shorthand: primitive_rdf.IriShorthand
     include: frozenset[tuple[str, ...]]
+    accept_mediatype: str | None
 
     @classmethod
     def from_querystring(cls, querystring: str) -> 'BaseTroveParams':  # TODO py3.11: typing.Self
@@ -74,6 +75,7 @@ def parse_queryparams(cls, queryparams: QueryparamDict) -> dict:
         return {
             'iri_shorthand': cls._gather_shorthand(queryparams),
             'include': cls._gather_include(queryparams.get('include', [])),
+            'accept_mediatype': _get_single_value(queryparams, QueryparamName('acceptMediatype')),
         }
 
     def to_querystring(self) -> str:
@@ -82,6 +84,8 @@ def to_querystring(self) -> str:
     def to_querydict(self) -> QueryDict:
         # subclasses should override and add their fields to super().to_querydict()
         _querydict = QueryDict(mutable=True)
+        if self.accept_mediatype:
+            _querydict['acceptMediatype'] = self.accept_mediatype
         # TODO: self.iri_shorthand, self.include
         return _querydict
 

trove/render/__init__.py

@@ -4,6 +4,7 @@
 from .html_browse import RdfHtmlBrowseRenderer
 from .turtle import RdfTurtleRenderer
 from .jsonld import RdfJsonldRenderer
+from .simple_json import TrovesearchSimpleJsonRenderer
 
 
 RENDERER_BY_MEDIATYPE = {
@@ -13,6 +14,7 @@
         RdfJsonapiRenderer,
         RdfTurtleRenderer,
         RdfJsonldRenderer,
+        TrovesearchSimpleJsonRenderer,
     )
 }
 

trove/render/simple_json.py

@@ -0,0 +1,100 @@
+import json
+
+from primitive_metadata import primitive_rdf as rdf
+
+from trove.vocab.jsonapi import (
+    JSONAPI_LINK_OBJECT,
+    JSONAPI_MEMBERNAME,
+)
+from trove.vocab.namespaces import TROVE, RDF
+from ._base import BaseRenderer
+
+
+class TrovesearchSimpleJsonRenderer(BaseRenderer):
+    '''for "simple json" search api -- very entangled with trove/trovesearch_gathering.py
+    '''
+    MEDIATYPE = 'application/json'
+
+    def render_document(self, data: rdf.RdfTripleDictionary, focus_iri: str) -> str:
+        _focustypes = data[focus_iri][RDF.type]
+        _graph = rdf.RdfGraph(data)
+        if TROVE.Cardsearch in _focustypes:
+            _jsonable = self._render_cardsearch(_graph, focus_iri)
+        elif TROVE.Valuesearch in _focustypes:
+            _jsonable = self._render_valuesearch(_graph, focus_iri)
+        elif TROVE.Indexcard in _focustypes:
+            _jsonable = self._render_card(_graph, focus_iri)
+        else:
+            raise NotImplementedError(f'simplejson not implemented for any of {_focustypes}')
+        # TODO: links, total in 'meta'
+        return json.dumps({
+            'data': _jsonable,
+            'links': self._render_links(_graph, focus_iri),
+            'meta': self._render_meta(_graph, focus_iri),
+        }, indent=2)
+
+    def _render_cardsearch(self, graph: rdf.RdfGraph, cardsearch_iri: str):
+        return self._render_searchresultpage(graph, cardsearch_iri)
+
+    def _render_valuesearch(self, graph: rdf.RdfGraph, valuesearch_iri: str):
+        return self._render_searchresultpage(graph, valuesearch_iri)
+
+    def _render_searchresultpage(self, graph: rdf.RdfGraph, focus_iri: str):
+        # just each card's contents
+        _results_sequence = next(
+            _page
+            for _page in graph.q(focus_iri, TROVE.searchResultPage)
+            if rdf.is_container(_page)  # filter out page links
+        )
+        return [
+            self._render_result(graph, _search_result_blanknode)
+            for _search_result_blanknode in rdf.sequence_objects_in_order(_results_sequence)
+        ]
+
+    def _render_result(self, graph: rdf.RdfGraph, search_result_blanknode: rdf.RdfBlanknode):
+        _card = next(
+            _obj
+            for _pred, _obj in search_result_blanknode
+            if _pred == TROVE.indexCard
+        )
+        return self._render_card(graph, _card)
+
+    def _render_card(self, graph: rdf.RdfGraph, card: str | rdf.RdfBlanknode):
+        # just the card contents
+        if isinstance(card, str):
+            _card_contents = next(graph.q(card, TROVE.resourceMetadata))
+        elif isinstance(card, frozenset):
+            _card_contents = next(
+                _obj
+                for _pred, _obj in card
+                if _pred == TROVE.resourceMetadata
+            )
+        else:
+            raise NotImplementedError
+        assert isinstance(_card_contents, rdf.Literal)
+        assert RDF.JSON in _card_contents.datatype_iris
+        return json.loads(_card_contents.unicode_value)
+
+    def _render_meta(self, graph: rdf.RdfGraph, focus_iri: str):
+        _meta = {}
+        try:
+            _total = next(graph.q(focus_iri, TROVE.totalResultCount))
+            if isinstance(_total, int):
+                _meta['total'] = _total
+            elif isinstance(_total, rdf.Literal):
+                _meta['total'] = int(_total.unicode_value)
+            elif _total == TROVE['ten-thousands-and-more']:
+                _meta['total'] = 'trove:ten-thousands-and-more'
+        except StopIteration:
+            pass
+        return _meta
+
+    def _render_links(self, graph: rdf.RdfGraph, focus_iri: str):
+        _links = {}
+        for _pagelink in graph.q(focus_iri, TROVE.searchResultPage):
+            _twopledict = rdf.twopledict_from_twopleset(_pagelink)
+            if JSONAPI_LINK_OBJECT in _twopledict.get(RDF.type, ()):
+                (_membername,) = _twopledict[JSONAPI_MEMBERNAME]
+                (_link_url,) = _twopledict[RDF.value]
+                _links[_membername.unicode_value] = _link_url
+        return _links

trove/views/indexcard.py

@@ -14,7 +14,7 @@ def get(self, request, indexcard_uuid):
             # TODO (gather): allow omitting kwargs that go unused
             'search_params': None,
             'specific_index': None,
-            'use_osfmap_json': (_renderer.MEDIATYPE == JSONAPI_MEDIATYPE)
+            'use_osfmap_json': (_renderer.MEDIATYPE in {'application/json', JSONAPI_MEDIATYPE})
         })
         _indexcard_iri = trove_indexcard_iri(indexcard_uuid)
         _search_gathering.ask(

trove/views/search.py

@@ -77,6 +77,6 @@ def _parse_request(request: http.HttpRequest, search_params_dataclass):
     _search_gathering = trovesearch_by_indexstrategy.new_gathering({
         'search_params': _search_params,
         'specific_index': _specific_index,
-        'use_osfmap_json': (_renderer.MEDIATYPE == JSONAPI_MEDIATYPE),
+        'use_osfmap_json': (_renderer.MEDIATYPE in {'application/json', JSONAPI_MEDIATYPE})
     })
     return (_search_iri, _search_gathering, _renderer)