Python util.bbox2wktpolygon函数代码示例

    def _get_envelope(self):
        """Parse gml:Envelope"""

        tmp = self._exml.find(util.nspath_eval('gml:Envelope/gml:lowerCorner',
                                               self.nsmap))
        if tmp is None:
            raise RuntimeError('Invalid gml:Envelope geometry.\
                               Missing gml:lowerCorner')
        else:
            lower_left = tmp.text

        tmp = self._exml.find(util.nspath_eval('gml:Envelope/gml:upperCorner',
                                               self.nsmap))
        if tmp is None:
            raise RuntimeError('Invalid gml:Envelope geometry.\
                               Missing gml:upperCorner')
        else:
            upper_right = tmp.text

        llmin = lower_left.split()
        urmax = upper_right.split()

        if len(llmin) < 2 or len(urmax) < 2:
            raise RuntimeError('Invalid gml:Envelope geometry. \
            gml:lowerCorner and gml:upperCorner must hold at least x and y')

        if self.crs.axisorder == 'yx':
            self.wkt = util.bbox2wktpolygon('%s,%s,%s,%s' % (llmin[1],
                                            llmin[0], urmax[1], urmax[0]))
        else:
            self.wkt = util.bbox2wktpolygon('%s,%s,%s,%s' % (llmin[0],
                                            llmin[1], urmax[0], urmax[1]))

    def create(self, request):
        try:
            styles_data = None
            ows_data = None
            http_status = status.HTTP_200_OK
            if "styles" in request.data:
                styles_data = request.data.pop("styles")
            if "ows_resource" in request.data:
                ows_data = request.data.pop("ows_resource")
            # parse and valid record data
            serializer = RecordSerializer(data=request.data, ows='post')
            serializer.is_valid(raise_exception=True)
            # parse and valid styles data
            style_serializers = [StyleSerializer(data=style) for style in styles_data] if styles_data else []
            if style_serializers:
                for style_serializer in style_serializers:
                    style_serializer.is_valid(raise_exception=True)
            # parse and vlaidate ows data
            ows_serializer = OwsResourceSerializer(data=ows_data)
            ows_serializer.is_valid(raise_exception=True)
            # save record data.
            identifier = "{}:{}".format(serializer.validated_data['workspace'], serializer.validated_data['name'])
            # transform the bbox data format
            if serializer.validated_data.get('bounding_box'):
                bounding_box = json.loads(serializer.validated_data['bounding_box'])
                bounding_box = ','.join([str(o) for o in bounding_box])
                try:
                    serializer.validated_data['bounding_box'] = util.bbox2wktpolygon(bounding_box)
                except:
                    traceback.print_exc()
                    raise serializers.ValidationError("Incorrect bounding box dataformat.")
            try:
                serializer.instance = Record.objects.get(identifier=identifier)
                serializer.instance.active = True
                for key in ["title", "abstract", "modified", "insert_date"]:
                    if key in serializer.validated_data:
                        serializer.validated_data.pop(key)

                # remove fake fields
                if "workspace" in serializer.validated_data:
                    serializer.validated_data.pop("workspace")
                if "name" in serializer.validated_data:
                    serializer.validated_data.pop("name")

                record = serializer.save()
            except Record.DoesNotExist:
                #record does not exist, create it
                serializer.validated_data['identifier'] = identifier
                # remove fake fields
                if "workspace" in serializer.validated_data:
                    serializer.validated_data.pop("workspace")
                if "name" in serializer.validated_data:
                    serializer.validated_data.pop("name")
                record = serializer.save()
                http_status = status.HTTP_201_CREATED
                # set the missing data and transform the content
                for style_serializer in style_serializers:
                    uploaded_style = style_serializer.validated_data
                    uploaded_style["record"] = record
                    uploaded_style["content"] = self.createStyle(uploaded_style["content"].decode("base64"))

                # set default style
                origin_default_style = {
                    "sld": record.sld.name if record.sld else None,
                    "qml": record.qml.name if record.qml else None,
                    "lyr": record.lyr.name if record.lyr else None
                }
                default_style = {}
                for style_serializer in style_serializers:
                    uploaded_style = style_serializer.validated_data
                    if uploaded_style.get("default", False):
                        # user set this style as default style, use the user's setting
                        default_style[uploaded_style["format"]] = uploaded_style
                    elif origin_default_style.get(uploaded_style["format"].lower(), None) == uploaded_style["name"]:
                        # the current style is configured default style.
                        default_style[uploaded_style["format"]] = uploaded_style
                    elif not origin_default_style.get(uploaded_style["format"].lower(), None) and uploaded_style["format"] not in default_style:
                        # no default style has been set, set the current style as the default style
                        default_style[uploaded_style["format"]] = uploaded_style
                    # clear the default flag
                    uploaded_style["default"] = False

                # set the default style
                for uploaded_style in default_style.itervalues():
                    uploaded_style["default"] = True

                #save  style
                for style_serializer in style_serializers:
                    style_serializer.save()

            ows_serializer.save(record)

            record.styles = list(Style.objects.filter(record=record))
            style_content = bool(request.GET.get("style_content", False))
            serializer = RecordSerializer(record, style_content=style_content, ows='get')
            return Response(serializer.data, status=http_status)
        except serializers.ValidationError:
            raise
        except Exception as e:
            raise serializers.ValidationError(str(e))

def _parse_dc(context, repos, exml):

    from owslib.csw import CswRecord

    recobj = repos.dataset()
    links = []

    md = CswRecord(exml)

    if md.bbox is None:
        bbox = None
    else:
        bbox = md.bbox

    _set(context, recobj, 'pycsw:Identifier', md.identifier)
    _set(context, recobj, 'pycsw:Typename', 'csw:Record')
    _set(context, recobj, 'pycsw:Schema', context.namespaces['csw'])
    _set(context, recobj, 'pycsw:MdSource', 'local')
    _set(context, recobj, 'pycsw:InsertDate', util.get_today_and_now())
    _set(context, recobj, 'pycsw:XML', md.xml)
    _set(context, recobj, 'pycsw:AnyText', util.get_anytext(exml))
    _set(context, recobj, 'pycsw:Language', md.language)
    _set(context, recobj, 'pycsw:Type', md.type)
    _set(context, recobj, 'pycsw:Title', md.title)
    _set(context, recobj, 'pycsw:AlternateTitle', md.alternative)
    _set(context, recobj, 'pycsw:Abstract', md.abstract)

    if len(md.subjects) > 0 and None not in md.subjects:
        _set(context, recobj, 'pycsw:Keywords', ','.join(md.subjects))

    _set(context, recobj, 'pycsw:ParentIdentifier', md.ispartof)
    _set(context, recobj, 'pycsw:Relation', md.relation)
    _set(context, recobj, 'pycsw:TempExtent_begin', md.temporal)
    _set(context, recobj, 'pycsw:TempExtent_end', md.temporal)
    _set(context, recobj, 'pycsw:ResourceLanguage', md.language)
    _set(context, recobj, 'pycsw:Creator', md.creator)
    _set(context, recobj, 'pycsw:Publisher', md.publisher)
    _set(context, recobj, 'pycsw:Contributor', md.contributor)
    _set(context, recobj, 'pycsw:OrganizationName', md.rightsholder)
    _set(context, recobj, 'pycsw:AccessConstraints', md.accessrights)
    _set(context, recobj, 'pycsw:OtherConstraints', md.license)
    _set(context, recobj, 'pycsw:Date', md.date)
    _set(context, recobj, 'pycsw:CreationDate', md.created)
    _set(context, recobj, 'pycsw:PublicationDate', md.issued)
    _set(context, recobj, 'pycsw:Modified', md.modified)
    _set(context, recobj, 'pycsw:Format', md.format)
    _set(context, recobj, 'pycsw:Source', md.source)

    for ref in md.references:
        tmp = ',,%s,%s' % (ref['scheme'], ref['url'])
        links.append(tmp)
    for uri in md.uris:
        tmp = '%s,%s,%s,%s' % \
        (uri['name'], uri['description'], uri['protocol'], uri['url'])
        links.append(tmp)

    if len(links) > 0:
        _set(context, recobj, 'pycsw:Links', '^'.join(links))

    if bbox is not None:
        try:
            tmp = '%s,%s,%s,%s' % (bbox.minx, bbox.miny, bbox.maxx, bbox.maxy)
            _set(context, recobj, 'pycsw:BoundingBox', util.bbox2wktpolygon(tmp))
        except:  # coordinates are corrupted, do not include
            _set(context, recobj, 'pycsw:BoundingBox', None)
    else:
        _set(context, recobj, 'pycsw:BoundingBox', None)

    return recobj

#.........这里部分代码省略.........

        if (hasattr(md.identification, 'keywords') and
        len(md.identification.keywords) > 0):
            if None not in md.identification.keywords[0]['keywords']:
                _set(context, recobj, 'pycsw:Keywords', ','.join(
                md.identification.keywords[0]['keywords']))
                _set(context, recobj, 'pycsw:KeywordType', md.identification.keywords[0]['type'])

        if hasattr(md.identification, 'creator'):
            _set(context, recobj, 'pycsw:Creator', md.identification.creator)
        if hasattr(md.identification, 'publisher'):
            _set(context, recobj, 'pycsw:Publisher', md.identification.publisher)
        if hasattr(md.identification, 'contributor'):
            _set(context, recobj, 'pycsw:Contributor', md.identification.contributor)

        if (hasattr(md.identification, 'contact') and 
        hasattr(md.identification.contact, 'organization')):
            _set(context, recobj, 'pycsw:OrganizationName', md.identification.contact.organization)

        if len(md.identification.securityconstraints) > 0:
            _set(context, recobj, 'pycsw:SecurityConstraints', 
            md.identification.securityconstraints[0])
        if len(md.identification.accessconstraints) > 0:
            _set(context, recobj, 'pycsw:AccessConstraints', 
            md.identification.accessconstraints[0])
        if len(md.identification.otherconstraints) > 0:
            _set(context, recobj, 'pycsw:OtherConstraints', md.identification.otherconstraints[0])

        if hasattr(md.identification, 'date'):
            for datenode in md.identification.date:
                if datenode.type == 'revision':
                    _set(context, recobj, 'pycsw:RevisionDate', datenode.date)
                elif datenode.type == 'creation':
                    _set(context, recobj, 'pycsw:CreationDate', datenode.date)
                elif datenode.type == 'publication':
                    _set(context, recobj, 'pycsw:PublicationDate', datenode.date)

        _set(context, recobj, 'pycsw:GeographicDescriptionCode', md.identification.extent.description_code)

        if len(md.identification.denominators) > 0:
            _set(context, recobj, 'pycsw:Denominator', md.identification.denominators[0])
        if len(md.identification.distance) > 0:
            _set(context, recobj, 'pycsw:DistanceValue', md.identification.distance[0])
        if len(md.identification.uom) > 0:
            _set(context, recobj, 'pycsw:DistanceUOM', md.identification.uom[0])

        if len(md.identification.classification) > 0:
            _set(context, recobj, 'pycsw:Classification', md.identification.classification[0])
        if len(md.identification.uselimitation) > 0:
            _set(context, recobj, 'pycsw:ConditionApplyingToAccessAndUse',
            md.identification.uselimitation[0])

    if hasattr(md.identification, 'format'):
        _set(context, recobj, 'pycsw:Format', md.distribution.format)

    if md.serviceidentification is not None:
        _set(context, recobj, 'pycsw:ServiceType', md.serviceidentification.type)
        _set(context, recobj, 'pycsw:ServiceTypeVersion', md.serviceidentification.version)

        _set(context, recobj, 'pycsw:CouplingType', md.serviceidentification.couplingtype)
   
        #if len(md.serviceidentification.operateson) > 0: 
        #    _set(context, recobj, 'pycsw:operateson = VARCHAR(32), 
        #_set(context, recobj, 'pycsw:operation VARCHAR(32), 
        #_set(context, recobj, 'pycsw:operatesonidentifier VARCHAR(32), 
        #_set(context, recobj, 'pycsw:operatesoname VARCHAR(32), 


    if hasattr(md.identification, 'dataquality'):     
        _set(context, recobj, 'pycsw:Degree', md.dataquality.conformancedegree)
        _set(context, recobj, 'pycsw:Lineage', md.dataquality.lineage)
        _set(context, recobj, 'pycsw:SpecificationTitle', md.dataquality.specificationtitle)
        if hasattr(md.dataquality, 'specificationdate'):
            _set(context, recobj, 'pycsw:specificationDate',
            md.dataquality.specificationdate[0].date)
            _set(context, recobj, 'pycsw:SpecificationDateType',
            md.dataquality.specificationdate[0].datetype)

    if hasattr(md, 'contact') and len(md.contact) > 0:
        _set(context, recobj, 'pycsw:ResponsiblePartyRole', md.contact[0].role)

    if hasattr(md, 'distribution') and hasattr(md.distribution, 'online'):
        for link in md.distribution.online:
            linkstr = '%s,%s,%s,%s' % \
            (link.name, link.description, link.protocol, link.url)
            links.append(linkstr)

    if len(links) > 0:
        _set(context, recobj, 'pycsw:Links', '^'.join(links))

    if bbox is not None:
        try:
            tmp = '%s,%s,%s,%s' % (bbox.minx, bbox.miny, bbox.maxx, bbox.maxy)
            _set(context, recobj, 'pycsw:BoundingBox', util.bbox2wktpolygon(tmp))
        except:  # coordinates are corrupted, do not include
            _set(context, recobj, 'pycsw:BoundingBox', None)
    else:
        _set(context, recobj, 'pycsw:BoundingBox', None)

    return recobj

def _parse_fgdc(context, repos, exml):

    from owslib.fgdc import Metadata

    recobj = repos.dataset()
    links = []

    md = Metadata(exml)

    if md.idinfo.datasetid is not None:  # we need an identifier
        _set(context, recobj, 'pycsw:Identifier', md.idinfo.datasetid)
    else:  # generate one ourselves
        _set(context, recobj, 'pycsw:Identifier', uuid.uuid1().get_urn())

    _set(context, recobj, 'pycsw:Typename', 'fgdc:metadata')
    _set(context, recobj, 'pycsw:Schema', context.namespaces['fgdc'])
    _set(context, recobj, 'pycsw:MdSource', 'local')
    _set(context, recobj, 'pycsw:InsertDate', util.get_today_and_now())
    _set(context, recobj, 'pycsw:XML', md.xml)
    _set(context, recobj, 'pycsw:AnyText', util.get_anytext(exml))
    _set(context, recobj, 'pycsw:Language', 'en-US')

    if hasattr(md.idinfo, 'descript'):
        _set(context, recobj, 'pycsw:Abstract', md.idinfo.descript.abstract)

    if hasattr(md.idinfo, 'keywords'):
        if md.idinfo.keywords.theme:
            _set(context, recobj, 'pycsw:Keywords', \
            ','.join(md.idinfo.keywords.theme[0]['themekey']))

    if hasattr(md.idinfo.timeperd, 'timeinfo'):
        if hasattr(md.idinfo.timeperd.timeinfo, 'rngdates'):
            _set(context, recobj, 'pycsw:TempExtent_begin',
                 md.idinfo.timeperd.timeinfo.rngdates.begdate)
            _set(context, recobj, 'pycsw:TempExtent_end',
                 md.idinfo.timeperd.timeinfo.rngdates.enddate)

    if hasattr(md.idinfo, 'origin'):
        _set(context, recobj, 'pycsw:Creator', md.idinfo.origin)
        _set(context, recobj, 'pycsw:Publisher',  md.idinfo.origin)
        _set(context, recobj, 'pycsw:Contributor', md.idinfo.origin)

    if hasattr(md.idinfo, 'ptcontac'):
        _set(context, recobj, 'pycsw:OrganizationName', md.idinfo.ptcontac.cntorg)
    _set(context, recobj, 'pycsw:AccessConstraints', md.idinfo.accconst)
    _set(context, recobj, 'pycsw:OtherConstraints', md.idinfo.useconst)
    _set(context, recobj, 'pycsw:Date', md.metainfo.metd)

    if hasattr(md.idinfo, 'spdom') and hasattr(md.idinfo.spdom, 'bbox'):
        bbox = md.idinfo.spdom.bbox
    else:
        bbox = None

    if hasattr(md.idinfo, 'citation'):
        if hasattr(md.idinfo.citation, 'citeinfo'):
            _set(context, recobj, 'pycsw:Type',  md.idinfo.citation.citeinfo['geoform'])
            _set(context, recobj, 'pycsw:Title', md.idinfo.citation.citeinfo['title'])
            _set(context, recobj,
            'pycsw:PublicationDate', md.idinfo.citation.citeinfo['pubdate'])
            _set(context, recobj, 'pycsw:Format', md.idinfo.citation.citeinfo['geoform'])
            if md.idinfo.citation.citeinfo['onlink']:
                for link in md.idinfo.citation.citeinfo['onlink']:
                    tmp = ',,,%s' % link
                    links.append(tmp)

    if hasattr(md, 'distinfo') and hasattr(md.distinfo, 'stdorder'):
        for link in md.distinfo.stdorder['digform']:
            tmp = ',%s,,%s' % (link['name'], link['url'])
            links.append(tmp)

    if len(links) > 0:
        _set(context, recobj, 'pycsw:Links', '^'.join(links))

    if bbox is not None:
        try:
            tmp = '%s,%s,%s,%s' % (bbox.minx, bbox.miny, bbox.maxx, bbox.maxy)
            _set(context, recobj, 'pycsw:BoundingBox', util.bbox2wktpolygon(tmp))
        except:  # coordinates are corrupted, do not include
            _set(context, recobj, 'pycsw:BoundingBox', None)
    else:
        _set(context, recobj, 'pycsw:BoundingBox', None)

    return recobj

def _parse_wcs(context, repos, record, identifier):

    from owslib.wcs import WebCoverageService

    bboxs = []
    recobjs = []
    serviceobj = repos.dataset()

    md = WebCoverageService(record, '1.0.0')

    # generate record of service instance
    _set(context, serviceobj, 'pycsw:Identifier', identifier)
    _set(context, serviceobj, 'pycsw:Typename', 'csw:Record')
    _set(context, serviceobj, 'pycsw:Schema', 'http://www.opengis.net/wcs')
    _set(context, serviceobj, 'pycsw:MdSource', record)
    _set(context, serviceobj, 'pycsw:InsertDate', util.get_today_and_now())
    _set(context, serviceobj, 'pycsw:XML', etree.tostring(md._capabilities))
    _set(context, serviceobj, 'pycsw:AnyText', util.get_anytext(etree.tostring(md._capabilities)))
    _set(context, serviceobj, 'pycsw:Type', 'service')
    _set(context, serviceobj, 'pycsw:Title', md.identification.title)
    _set(context, serviceobj, 'pycsw:Abstract', md.identification.abstract)
    _set(context, serviceobj, 'pycsw:Keywords', ','.join(md.identification.keywords))
    _set(context, serviceobj, 'pycsw:Creator', md.provider.contact.name)
    _set(context, serviceobj, 'pycsw:Publisher', md.provider.contact.name)
    _set(context, serviceobj, 'pycsw:Contributor', md.provider.contact.name)
    _set(context, serviceobj, 'pycsw:OrganizationName', md.provider.contact.name)
    _set(context, serviceobj, 'pycsw:AccessConstraints', md.identification.accessConstraints)
    _set(context, serviceobj, 'pycsw:OtherConstraints', md.identification.fees)
    _set(context, serviceobj, 'pycsw:Source', record)
    _set(context, serviceobj, 'pycsw:Format', md.identification.type)
    _set(context, serviceobj, 'pycsw:CRS', 'urn:ogc:def:crs:EPSG:6.11:4326')
    _set(context, serviceobj, 'pycsw:DistanceUOM', 'degrees')
    _set(context, serviceobj, 'pycsw:ServiceType', md.identification.type)
    _set(context, serviceobj, 'pycsw:ServiceTypeVersion', md.identification.version)
    _set(context, serviceobj, 'pycsw:Operation', ','.join([d.name for d in md.operations]))
    _set(context, serviceobj, 'pycsw:OperatesOn', ','.join(list(md.contents)))
    _set(context, serviceobj, 'pycsw:CouplingType', 'tight')

    # generate record foreach coverage

    LOGGER.debug('Harvesting %d WCS coverages ' % len(md.contents))

    for coverage in md.contents:
        recobj = repos.dataset()
        identifier2 = '%s-%s' % (identifier, md.contents[coverage].id)
        _set(context, recobj, 'pycsw:Identifier', identifier2)
        _set(context, recobj, 'pycsw:Typename', 'csw:Record')
        _set(context, recobj, 'pycsw:Schema', 'http://www.opengis.net/wcs')
        _set(context, recobj, 'pycsw:MdSource', record)
        _set(context, recobj, 'pycsw:InsertDate', util.get_today_and_now())
        _set(context, recobj, 'pycsw:XML', etree.tostring(md._capabilities))
        _set(context, recobj, 'pycsw:AnyText', util.get_anytext(md._capabilities))
        _set(context, recobj, 'pycsw:Type', 'dataset')
        _set(context, recobj, 'pycsw:ParentIdentifier', identifier)
        _set(context, recobj, 'pycsw:Title', md.contents[coverage].title)
        _set(context, recobj, 'pycsw:Abstract', md.contents[coverage].abstract)
        _set(context, recobj, 'pycsw:Keywords', ','.join(md.contents[coverage].keywords))

        bbox = md.contents[coverage].boundingBoxWGS84
        if bbox is not None:
            tmp = '%s,%s,%s,%s' % (bbox[0], bbox[1], bbox[2], bbox[3])
            wkt_polygon = util.bbox2wktpolygon(tmp)
            _set(context, recobj, 'pycsw:BoundingBox', wkt_polygon)
            _set(context, recobj, 'pycsw:CRS', 'urn:ogc:def:crs:EPSG:6.11:4326')
            _set(context, recobj, 'pycsw:Denominator', 'degrees')
            bboxs.append(wkt_polygon)

        recobjs.append(recobj)

    # Derive a bbox based on aggregated coverage bbox values

    bbox_agg = util.bbox_from_polygons(bboxs)

    if bbox_agg is not None:
        _set(context, serviceobj, 'pycsw:BoundingBox', bbox_agg)

    recobjs.insert(0, serviceobj)

    return recobjs

def _parse_wms(context, repos, record, identifier):

    from owslib.wms import WebMapService

    recobjs = []
    serviceobj = repos.dataset()

    md = WebMapService(record)

    # generate record of service instance
    _set(context, serviceobj, 'pycsw:Identifier', identifier)
    _set(context, serviceobj, 'pycsw:Typename', 'csw:Record')
    _set(context, serviceobj, 'pycsw:Schema', 'http://www.opengis.net/wms')
    _set(context, serviceobj, 'pycsw:MdSource', record)
    _set(context, serviceobj, 'pycsw:InsertDate', util.get_today_and_now())
    _set(context, serviceobj, 'pycsw:XML', md.getServiceXML())
    _set(context, serviceobj, 'pycsw:AnyText', util.get_anytext(md.getServiceXML()))
    _set(context, serviceobj, 'pycsw:Type', 'service')
    _set(context, serviceobj, 'pycsw:Title', md.identification.title)
    _set(context, serviceobj, 'pycsw:Abstract', md.identification.abstract)
    _set(context, serviceobj, 'pycsw:Keywords', ','.join(md.identification.keywords))
    _set(context, serviceobj, 'pycsw:Creator', md.provider.contact.name)
    _set(context, serviceobj, 'pycsw:Publisher', md.provider.contact.name)
    _set(context, serviceobj, 'pycsw:Contributor', md.provider.contact.name)
    _set(context, serviceobj, 'pycsw:OrganizationName', md.provider.contact.name)
    _set(context, serviceobj, 'pycsw:AccessConstraints', md.identification.accessconstraints)
    _set(context, serviceobj, 'pycsw:OtherConstraints', md.identification.fees)
    _set(context, serviceobj, 'pycsw:Source', record)
    _set(context, serviceobj, 'pycsw:Format', md.identification.type)
    for c in md.contents:
        if md.contents[c].parent is None:
            bbox = md.contents[c].boundingBoxWGS84
            tmp = '%s,%s,%s,%s' % (bbox[0], bbox[1], bbox[2], bbox[3])
            _set(context, serviceobj, 'pycsw:BoundingBox', util.bbox2wktpolygon(tmp))
            break
    _set(context, serviceobj, 'pycsw:CRS', 'urn:ogc:def:crs:EPSG:6.11:4326')
    _set(context, serviceobj, 'pycsw:DistanceUOM', 'degrees')
    _set(context, serviceobj, 'pycsw:ServiceType', md.identification.type)
    _set(context, serviceobj, 'pycsw:ServiceTypeVersion', md.identification.version)
    _set(context, serviceobj, 'pycsw:Operation', ','.join([d.name for d in md.operations]))
    _set(context, serviceobj, 'pycsw:OperatesOn', ','.join(list(md.contents)))
    _set(context, serviceobj, 'pycsw:CouplingType', 'tight')

    recobjs.append(serviceobj) 
         
    # generate record foreach layer

    LOGGER.debug('Harvesting %d WMS layers' % len(md.contents))

    for layer in md.contents:
        recobj = repos.dataset()
        identifier2 = '%s-%s' % (identifier, md.contents[layer].name)
        _set(context, recobj, 'pycsw:Identifier', identifier2)
        _set(context, recobj, 'pycsw:Typename', 'csw:Record')
        _set(context, recobj, 'pycsw:Schema', 'http://www.opengis.net/wms')
        _set(context, recobj, 'pycsw:MdSource', record)
        _set(context, recobj, 'pycsw:InsertDate', util.get_today_and_now())
        _set(context, recobj, 'pycsw:XML', md.getServiceXML())
        _set(context, recobj, 'pycsw:AnyText', util.get_anytext(md._capabilities))
        _set(context, recobj, 'pycsw:Type', 'dataset')
        _set(context, recobj, 'pycsw:ParentIdentifier', identifier)
        _set(context, recobj, 'pycsw:Title', md.contents[layer].title)
        _set(context, recobj, 'pycsw:Abstract', md.contents[layer].abstract)
        _set(context, recobj, 'pycsw:Keywords', ','.join(md.contents[layer].keywords))

        bbox = md.contents[layer].boundingBoxWGS84
        if bbox is not None:
            tmp = '%s,%s,%s,%s' % (bbox[0], bbox[1], bbox[2], bbox[3])
            _set(context, recobj, 'pycsw:BoundingBox', util.bbox2wktpolygon(tmp))
            _set(context, recobj, 'pycsw:CRS', 'urn:ogc:def:crs:EPSG:6.11:4326')
            _set(context, recobj, 'pycsw:Denominator', 'degrees')
        else:
            bbox = md.contents[layer].boundingBox
            if bbox:
                tmp = '%s,%s,%s,%s' % (bbox[0], bbox[1], bbox[2], bbox[3])
                _set(context, recobj, 'pycsw:BoundingBox', util.bbox2wktpolygon(tmp))
                _set(context, recobj, 'pycsw:CRS', 'urn:ogc:def:crs:EPSG:6.11:%s' % \
                bbox[-1].split(':')[1])

        recobjs.append(recobj)

    return recobjs

def _parse_sos(context, repos, record, identifier, version):

    from owslib.sos import SensorObservationService

    bboxs = []
    recobjs = []
    serviceobj = repos.dataset()

    if version == '1.0.0':
        schema = 'http://www.opengis.net/sos/1.0'
    else:
        schema = 'http://www.opengis.net/sos/2.0'

    md = SensorObservationService(record, version=version)

    # generate record of service instance
    _set(context, serviceobj, 'pycsw:Identifier', identifier)
    _set(context, serviceobj, 'pycsw:Typename', 'csw:Record')
    _set(context, serviceobj, 'pycsw:Schema', schema)
    _set(context, serviceobj, 'pycsw:MdSource', record)
    _set(context, serviceobj, 'pycsw:InsertDate', util.get_today_and_now())
    _set(context, serviceobj, 'pycsw:XML', etree.tostring(md._capabilities))
    _set(context, serviceobj, 'pycsw:AnyText', util.get_anytext(etree.tostring(md._capabilities)))
    _set(context, serviceobj, 'pycsw:Type', 'service')
    _set(context, serviceobj, 'pycsw:Title', md.identification.title)
    _set(context, serviceobj, 'pycsw:Abstract', md.identification.abstract)
    _set(context, serviceobj, 'pycsw:Keywords', ','.join(md.identification.keywords))
    _set(context, serviceobj, 'pycsw:Creator', md.provider.contact.name)
    _set(context, serviceobj, 'pycsw:Publisher', md.provider.contact.name)
    _set(context, serviceobj, 'pycsw:Contributor', md.provider.contact.name)
    _set(context, serviceobj, 'pycsw:OrganizationName', md.provider.contact.name)
    _set(context, serviceobj, 'pycsw:AccessConstraints', md.identification.accessconstraints)
    _set(context, serviceobj, 'pycsw:OtherConstraints', md.identification.fees)
    _set(context, serviceobj, 'pycsw:Source', record)
    _set(context, serviceobj, 'pycsw:Format', md.identification.type)
    _set(context, serviceobj, 'pycsw:CRS', 'urn:ogc:def:crs:EPSG:6.11:4326')
    _set(context, serviceobj, 'pycsw:DistanceUOM', 'degrees')
    _set(context, serviceobj, 'pycsw:ServiceType', md.identification.type)
    _set(context, serviceobj, 'pycsw:ServiceTypeVersion', md.identification.version)
    _set(context, serviceobj, 'pycsw:Operation', ','.join([d.name for d in md.operations]))
    _set(context, serviceobj, 'pycsw:OperatesOn', ','.join(list(md.contents)))
    _set(context, serviceobj, 'pycsw:CouplingType', 'tight')

    links = [
        '%s,OGC-SOS Sensor Observation Service,OGC:SOS,%s' % (identifier, md.url),
        '%s,OGC-SOS Capabilities service (ver %s),OGC:SOS-%s-http-get-capabilities,%s' % (identifier, version, version, build_get_url(md.url, {'service': 'SOS', 'version': version, 'request': 'GetCapabilities'})),
    ]

    _set(context, serviceobj, 'pycsw:Links', '^'.join(links))

    # generate record foreach offering

    LOGGER.debug('Harvesting %d SOS ObservationOffering\'s ', len(md.contents))

    for offering in md.contents:
        recobj = repos.dataset()
        identifier2 = '%s-%s' % (identifier, md.contents[offering].id)
        _set(context, recobj, 'pycsw:Identifier', identifier2)
        _set(context, recobj, 'pycsw:Typename', 'csw:Record')
        _set(context, recobj, 'pycsw:Schema', schema)
        _set(context, recobj, 'pycsw:MdSource', record)
        _set(context, recobj, 'pycsw:InsertDate', util.get_today_and_now())
        _set(context, recobj, 'pycsw:XML', etree.tostring(md._capabilities))
        _set(context, recobj, 'pycsw:AnyText', util.get_anytext(md._capabilities))
        _set(context, recobj, 'pycsw:Type', 'dataset')
        _set(context, recobj, 'pycsw:ParentIdentifier', identifier)
        _set(context, recobj, 'pycsw:Title', md.contents[offering].description)
        _set(context, recobj, 'pycsw:Abstract', md.contents[offering].description)
        _set(context, recobj, 'pycsw:TempExtent_begin', util.datetime2iso8601(md.contents[offering].begin_position))
        _set(context, recobj, 'pycsw:TempExtent_end', util.datetime2iso8601(md.contents[offering].end_position))

        bbox = md.contents[offering].bbox
        if bbox is not None:
            tmp = '%s,%s,%s,%s' % (bbox[0], bbox[1], bbox[2], bbox[3])
            wkt_polygon = util.bbox2wktpolygon(tmp)
            _set(context, recobj, 'pycsw:BoundingBox', wkt_polygon)
            _set(context, recobj, 'pycsw:CRS', md.contents[offering].bbox_srs.id)
            _set(context, recobj, 'pycsw:Denominator', 'degrees')
            bboxs.append(wkt_polygon)

        recobjs.append(recobj)

    # Derive a bbox based on aggregated featuretype bbox values

    bbox_agg = util.bbox_from_polygons(bboxs)

    if bbox_agg is not None:
        _set(context, serviceobj, 'pycsw:BoundingBox', bbox_agg)

    recobjs.insert(0, serviceobj)

    return recobjs

def _parse_wfs(context, repos, record, identifier):

    from owslib.wfs import WebFeatureService

    bboxs = []
    recobjs = []
    serviceobj = repos.dataset()

    md = WebFeatureService(record, '1.1.0')

    # generate record of service instance
    _set(context, serviceobj, 'pycsw:Identifier', identifier)
    _set(context, serviceobj, 'pycsw:Typename', 'csw:Record')
    _set(context, serviceobj, 'pycsw:Schema', 'http://www.opengis.net/wfs')
    _set(context, serviceobj, 'pycsw:MdSource', record)
    _set(context, serviceobj, 'pycsw:InsertDate', util.get_today_and_now())
    _set(context, serviceobj, 'pycsw:XML', etree.tostring(md._capabilities))
    _set(context, serviceobj, 'pycsw:AnyText', util.get_anytext(etree.tostring(md._capabilities)))
    _set(context, serviceobj, 'pycsw:Type', 'service')
    _set(context, serviceobj, 'pycsw:Title', md.identification.title)
    _set(context, serviceobj, 'pycsw:Abstract', md.identification.abstract)
    _set(context, serviceobj, 'pycsw:Keywords', ','.join(md.identification.keywords))
    _set(context, serviceobj, 'pycsw:Creator', md.provider.contact.name)
    _set(context, serviceobj, 'pycsw:Publisher', md.provider.contact.name)
    _set(context, serviceobj, 'pycsw:Contributor', md.provider.contact.name)
    _set(context, serviceobj, 'pycsw:OrganizationName', md.provider.contact.name)
    _set(context, serviceobj, 'pycsw:AccessConstraints', md.identification.accessconstraints)
    _set(context, serviceobj, 'pycsw:OtherConstraints', md.identification.fees)
    _set(context, serviceobj, 'pycsw:Source', record)
    _set(context, serviceobj, 'pycsw:Format', md.identification.type)
    _set(context, serviceobj, 'pycsw:CRS', 'urn:ogc:def:crs:EPSG:6.11:4326')
    _set(context, serviceobj, 'pycsw:DistanceUOM', 'degrees')
    _set(context, serviceobj, 'pycsw:ServiceType', md.identification.type)
    _set(context, serviceobj, 'pycsw:ServiceTypeVersion', md.identification.version)
    _set(context, serviceobj, 'pycsw:Operation', ','.join([d.name for d in md.operations]))
    _set(context, serviceobj, 'pycsw:OperatesOn', ','.join(list(md.contents)))
    _set(context, serviceobj, 'pycsw:CouplingType', 'tight')

    links = [
        '%s,OGC-WFS Web Feature Service,OGC:WFS,%s' % (identifier, md.url),
        '%s,OGC-WFS Capabilities service (ver 1.1.0),OGC:WFS-1.1.0-http-get-capabilities,%s' % (identifier, build_get_url(md.url, {'service': 'WFS', 'version': '1.1.0', 'request': 'GetCapabilities'})),
    ]

    _set(context, serviceobj, 'pycsw:Links', '^'.join(links))

    # generate record foreach featuretype

    LOGGER.debug('Harvesting %d WFS featuretypes' % len(md.contents))

    for featuretype in md.contents:
        recobj = repos.dataset()
        identifier2 = '%s-%s' % (identifier, md.contents[featuretype].id)
        _set(context, recobj, 'pycsw:Identifier', identifier2)
        _set(context, recobj, 'pycsw:Typename', 'csw:Record')
        _set(context, recobj, 'pycsw:Schema', 'http://www.opengis.net/wfs')
        _set(context, recobj, 'pycsw:MdSource', record)
        _set(context, recobj, 'pycsw:InsertDate', util.get_today_and_now())
        _set(context, recobj, 'pycsw:XML', etree.tostring(md._capabilities))
        _set(context, recobj, 'pycsw:AnyText', util.get_anytext(md._capabilities))
        _set(context, recobj, 'pycsw:Type', 'dataset')
        _set(context, recobj, 'pycsw:ParentIdentifier', identifier)
        _set(context, recobj, 'pycsw:Title', md.contents[featuretype].title)
        _set(context, recobj, 'pycsw:Abstract', md.contents[featuretype].abstract)
        _set(context, recobj, 'pycsw:Keywords', ','.join(md.contents[featuretype].keywords))

        bbox = md.contents[featuretype].boundingBoxWGS84
        if bbox is not None:
            tmp = '%s,%s,%s,%s' % (bbox[0], bbox[1], bbox[2], bbox[3])
            wkt_polygon = util.bbox2wktpolygon(tmp)
            _set(context, recobj, 'pycsw:BoundingBox', wkt_polygon)
            _set(context, recobj, 'pycsw:CRS', 'urn:ogc:def:crs:EPSG:6.11:4326')
            _set(context, recobj, 'pycsw:Denominator', 'degrees')
            bboxs.append(wkt_polygon)

        params = {
            'service': 'WFS',
            'version': '1.1.0',
            'request': 'GetFeature',
            'typename': md.contents[featuretype].id,
        }

        links = [
            '%s,File for download,WWW:DOWNLOAD-1.0-http--download,%s' % (md.contents[featuretype].id, build_get_url(md.url, params))
        ]

        _set(context, recobj, 'pycsw:Links', '^'.join(links))

        recobjs.append(recobj)

    # Derive a bbox based on aggregated featuretype bbox values

    bbox_agg = util.bbox_from_polygons(bboxs)

    if bbox_agg is not None:
        _set(context, serviceobj, 'pycsw:BoundingBox', bbox_agg)

    recobjs.insert(0, serviceobj)

    return recobjs

def _parse_wms(context, repos, record, identifier):

    from owslib.wms import WebMapService

    recobjs = []
    serviceobj = repos.dataset()

    md = WebMapService(record)

    # generate record of service instance
    _set(context, serviceobj, 'pycsw:Identifier', identifier)
    _set(context, serviceobj, 'pycsw:Typename', 'csw:Record')
    _set(context, serviceobj, 'pycsw:Schema', 'http://www.opengis.net/wms')
    _set(context, serviceobj, 'pycsw:MdSource', record)
    _set(context, serviceobj, 'pycsw:InsertDate', util.get_today_and_now())
    _set(context, serviceobj, 'pycsw:XML', md.getServiceXML())
    _set(context, serviceobj, 'pycsw:AnyText', util.get_anytext(md.getServiceXML()))
    _set(context, serviceobj, 'pycsw:Type', 'service')
    _set(context, serviceobj, 'pycsw:Title', md.identification.title)
    _set(context, serviceobj, 'pycsw:Abstract', md.identification.abstract)
    _set(context, serviceobj, 'pycsw:Keywords', ','.join(md.identification.keywords))
    _set(context, serviceobj, 'pycsw:Creator', md.provider.contact.name)
    _set(context, serviceobj, 'pycsw:Publisher', md.provider.contact.name)
    _set(context, serviceobj, 'pycsw:Contributor', md.provider.contact.name)
    _set(context, serviceobj, 'pycsw:OrganizationName', md.provider.contact.name)
    _set(context, serviceobj, 'pycsw:AccessConstraints', md.identification.accessconstraints)
    _set(context, serviceobj, 'pycsw:OtherConstraints', md.identification.fees)
    _set(context, serviceobj, 'pycsw:Source', record)
    _set(context, serviceobj, 'pycsw:Format', md.identification.type)
    for c in md.contents:
        if md.contents[c].parent is None:
            bbox = md.contents[c].boundingBoxWGS84
            tmp = '%s,%s,%s,%s' % (bbox[0], bbox[1], bbox[2], bbox[3])
            _set(context, serviceobj, 'pycsw:BoundingBox', util.bbox2wktpolygon(tmp))
            break
    _set(context, serviceobj, 'pycsw:CRS', 'urn:ogc:def:crs:EPSG:6.11:4326')
    _set(context, serviceobj, 'pycsw:DistanceUOM', 'degrees')
    _set(context, serviceobj, 'pycsw:ServiceType', md.identification.type)
    _set(context, serviceobj, 'pycsw:ServiceTypeVersion', md.identification.version)
    _set(context, serviceobj, 'pycsw:Operation', ','.join([d.name for d in md.operations]))
    _set(context, serviceobj, 'pycsw:OperatesOn', ','.join(list(md.contents)))
    _set(context, serviceobj, 'pycsw:CouplingType', 'tight')

    links = [
        '%s,OGC-WMS Web Map Service,OGC:WMS,%s' % (identifier, md.url),
        '%s,OGC-WMS Capabilities service (ver 1.1.1),OGC:WMS-1.1.1-http-get-capabilities,%s' % (identifier, build_get_url(md.url, {'service': 'WMS', 'version': '1.1.1', 'request': 'GetCapabilities'})),
    ]

    _set(context, serviceobj, 'pycsw:Links', '^'.join(links))

    recobjs.append(serviceobj) 
         
    # generate record foreach layer

    LOGGER.debug('Harvesting %d WMS layers' % len(md.contents))

    for layer in md.contents:
        recobj = repos.dataset()
        identifier2 = '%s-%s' % (identifier, md.contents[layer].name)
        _set(context, recobj, 'pycsw:Identifier', identifier2)
        _set(context, recobj, 'pycsw:Typename', 'csw:Record')
        _set(context, recobj, 'pycsw:Schema', 'http://www.opengis.net/wms')
        _set(context, recobj, 'pycsw:MdSource', record)
        _set(context, recobj, 'pycsw:InsertDate', util.get_today_and_now())
        _set(context, recobj, 'pycsw:XML', md.getServiceXML())
        _set(context, recobj, 'pycsw:AnyText', util.get_anytext(md._capabilities))
        _set(context, recobj, 'pycsw:Type', 'dataset')
        _set(context, recobj, 'pycsw:ParentIdentifier', identifier)
        _set(context, recobj, 'pycsw:Title', md.contents[layer].title)
        _set(context, recobj, 'pycsw:Abstract', md.contents[layer].abstract)
        _set(context, recobj, 'pycsw:Keywords', ','.join(md.contents[layer].keywords))

        bbox = md.contents[layer].boundingBoxWGS84
        if bbox is not None:
            tmp = '%s,%s,%s,%s' % (bbox[0], bbox[1], bbox[2], bbox[3])
            _set(context, recobj, 'pycsw:BoundingBox', util.bbox2wktpolygon(tmp))
            _set(context, recobj, 'pycsw:CRS', 'urn:ogc:def:crs:EPSG:6.11:4326')
            _set(context, recobj, 'pycsw:Denominator', 'degrees')
        else:
            bbox = md.contents[layer].boundingBox
            if bbox:
                tmp = '%s,%s,%s,%s' % (bbox[0], bbox[1], bbox[2], bbox[3])
                _set(context, recobj, 'pycsw:BoundingBox', util.bbox2wktpolygon(tmp))
                _set(context, recobj, 'pycsw:CRS', 'urn:ogc:def:crs:EPSG:6.11:%s' % \
                bbox[-1].split(':')[1])

        params = {
            'service': 'WMS',
            'version': '1.1.1',
            'request': 'GetMap',
            'layers': md.contents[layer].name,
            'format': 'image/png',
            'height': '200',
            'width': '200',
            'srs': 'EPSG:4326',
            'bbox':  '%s,%s,%s,%s' % (bbox[0], bbox[1], bbox[2], bbox[3]),
            'styles': ''
        }

        links = [
#.........这里部分代码省略.........

                for sops in sident.operations:
                    for scpt in sops['connectpoint']:
                        LOGGER.debug('adding srv link %s', scpt.url)
                        linkstr = '%s,%s,%s,%s' % \
                        (scpt.name, scpt.description, scpt.protocol, scpt.url)
                        links.append(linkstr)
    except Exception, err:  # srv: identification does not exist
        LOGGER.debug('no srv:SV_ServiceIdentification links found')

    if len(links) > 0:
        _set(context, recobj, 'pycsw:Links', '^'.join(links))

    if bbox is not None:
        try:
            tmp = '%s,%s,%s,%s' % (bbox.minx, bbox.miny, bbox.maxx, bbox.maxy)
            _set(context, recobj, 'pycsw:BoundingBox', util.bbox2wktpolygon(tmp))
        except:  # coordinates are corrupted, do not include
            _set(context, recobj, 'pycsw:BoundingBox', None)
    else:
        _set(context, recobj, 'pycsw:BoundingBox', None)

    return recobj

def _parse_dc(context, repos, exml):

    from owslib.csw import CswRecord

    recobj = repos.dataset()
    links = []

    md = CswRecord(exml)

def _parse_sos(context, repos, record, identifier, version):

    from owslib.sos import SensorObservationService

    bboxs = []
    recobjs = []
    serviceobj = repos.dataset()

    if version == '1.0.0':
        schema = 'http://www.opengis.net/sos/1.0'
    else:
        schema = 'http://www.opengis.net/sos/2.0'

    md = SensorObservationService(record, version=version)

    # generate record of service instance
    _set(context, serviceobj, 'pycsw:Identifier', identifier)
    _set(context, serviceobj, 'pycsw:Typename', 'csw:Record')
    _set(context, serviceobj, 'pycsw:Schema', schema)
    _set(context, serviceobj, 'pycsw:MdSource', record)
    _set(context, serviceobj, 'pycsw:InsertDate', util.get_today_and_now())
    _set(context, serviceobj, 'pycsw:XML', etree.tostring(md._capabilities))
    _set(context, serviceobj, 'pycsw:AnyText', util.get_anytext(etree.tostring(md._capabilities)))
    _set(context, serviceobj, 'pycsw:Type', 'service')
    _set(context, serviceobj, 'pycsw:Title', md.identification.title)
    _set(context, serviceobj, 'pycsw:Abstract', md.identification.abstract)
    _set(context, serviceobj, 'pycsw:Keywords', ','.join(md.identification.keywords))
    _set(context, serviceobj, 'pycsw:Creator', md.provider.contact.name)
    _set(context, serviceobj, 'pycsw:Publisher', md.provider.name)
    _set(context, serviceobj, 'pycsw:Contributor', md.provider.contact.name)
    _set(context, serviceobj, 'pycsw:OrganizationName', md.provider.contact.name)
    _set(context, serviceobj, 'pycsw:AccessConstraints', md.identification.accessconstraints)
    _set(context, serviceobj, 'pycsw:OtherConstraints', md.identification.fees)
    _set(context, serviceobj, 'pycsw:Source', record)
    _set(context, serviceobj, 'pycsw:Format', md.identification.type)
    _set(context, serviceobj, 'pycsw:CRS', 'urn:ogc:def:crs:EPSG:6.11:4326')
    _set(context, serviceobj, 'pycsw:DistanceUOM', 'degrees')
    _set(context, serviceobj, 'pycsw:ServiceType', md.identification.type)
    _set(context, serviceobj, 'pycsw:ServiceTypeVersion', md.identification.version)
    _set(context, serviceobj, 'pycsw:Operation', ','.join([d.name for d in md.operations]))
    _set(context, serviceobj, 'pycsw:OperatesOn', ','.join(list(md.contents)))
    _set(context, serviceobj, 'pycsw:CouplingType', 'tight')

    links = [
        '%s,OGC-SOS Sensor Observation Service,OGC:SOS,%s' % (identifier, md.url),
    ]

    _set(context, serviceobj, 'pycsw:Links', '^'.join(links))

    # generate record foreach offering

    LOGGER.debug('Harvesting %d SOS ObservationOffering\'s ', len(md.contents))

    for offering in md.contents:
        recobj = repos.dataset()
        identifier2 = '%s-%s' % (identifier, md.contents[offering].id)
        _set(context, recobj, 'pycsw:Identifier', identifier2)
        _set(context, recobj, 'pycsw:Typename', 'csw:Record')
        _set(context, recobj, 'pycsw:Schema', schema)
        _set(context, recobj, 'pycsw:MdSource', record)
        _set(context, recobj, 'pycsw:InsertDate', util.get_today_and_now())
        _set(context, recobj, 'pycsw:XML', etree.tostring(md._capabilities))
        _set(context, recobj, 'pycsw:Type', 'dataset')
        _set(context, recobj, 'pycsw:ParentIdentifier', identifier)
        _set(context, recobj, 'pycsw:Title', md.contents[offering].description)
        _set(context, recobj, 'pycsw:Abstract', md.contents[offering].description)
        _set(context, recobj, 'pycsw:TempExtent_begin', util.datetime2iso8601(md.contents[offering].begin_position))
        _set(context, recobj, 'pycsw:TempExtent_end', util.datetime2iso8601(md.contents[offering].end_position))

        #For observed_properties that have mmi url or urn, we simply want the observation name.
        observed_properties = []
        for obs in md.contents[offering].observed_properties:
          #Observation is stored as urn representation: urn:ogc:def:phenomenon:mmisw.org:cf:sea_water_salinity
          if obs.lower().startswith(('urn:', 'x-urn')):
            observed_properties.append(obs.rsplit(':', 1)[-1])
          #Observation is stored as uri representation: http://mmisw.org/ont/cf/parameter/sea_floor_depth_below_sea_surface
          elif obs.lower().startswith(('http://', 'https://')):
            observed_properties.append(obs.rsplit('/', 1)[-1])
          else:
            observed_properties.append(obs)
        #Build anytext from description and the observed_properties.
        anytext = []
        anytext.append(md.contents[offering].description)
        anytext.extend(observed_properties)
        _set(context, recobj, 'pycsw:AnyText', util.get_anytext(anytext))
        _set(context, recobj, 'pycsw:Keywords', ','.join(observed_properties))

        bbox = md.contents[offering].bbox
        if bbox is not None:
            tmp = '%s,%s,%s,%s' % (bbox[0], bbox[1], bbox[2], bbox[3])
            wkt_polygon = util.bbox2wktpolygon(tmp)
            _set(context, recobj, 'pycsw:BoundingBox', wkt_polygon)
            _set(context, recobj, 'pycsw:CRS', md.contents[offering].bbox_srs.id)
            _set(context, recobj, 'pycsw:DistanceUOM', 'degrees')
            bboxs.append(wkt_polygon)

        recobjs.append(recobj)

    # Derive a bbox based on aggregated featuretype bbox values

#.........这里部分代码省略.........