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import urllib2
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2
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from flask import json
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import pysolr
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from DLIObject import DLIObject
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class QueryResolver(object):
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def __init__(self, solr_url):
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self.solr_url = solr_url
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self.solr_server = pysolr.Solr(self.solr_url)
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self.facet_renaming = {'entitytype': "Typology", 'provenance': "Content Provider",
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"Content Provider": 'provenance', "Typology": 'entitytype'}
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def get_facet(self, facet, query=None):
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data = []
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f = 'entitytype'
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if query is not None:
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data.append({'facet': self.facet_renaming[f], 'query_name': f, 'values': [
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{'key': facet[f][i], 'value': facet[f][i + 1]} for i in range(0, len(facet[f]), 2)]})
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else:
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data.append({'facet': self.facet_renaming[f], 'query_name': f,
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'values': [{'key': facet[f][i], 'value': facet[f][i + 1]} for i in
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range(0, len(facet[f]), 2)]})
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f = 'provenance'
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data.append({'facet': self.facet_renaming[f], 'query_name': f,
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'values': [{'key': facet[f][i], 'value': facet[f][i + 1]} for i in range(0, len(facet[f]), 2)]})
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return data
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def get_item(self, persistent_identifier):
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query = 'objidentifier:"%s"' % persistent_identifier
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response = self.solr_server.search(q=query)
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query_response = []
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for hit in response:
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result = hit['__result'][0]
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query_response.append(DLIObject(result.encode('utf8')))
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return {'objects': query_response}
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def get_stats_detail(self):
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data = urllib2.urlopen("http://node0-p-dli.d4science.org:8080/dli/mvc/ui/stats/getLastStats")
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result = []
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d = json.loads(data.read())
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for k in d:
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if 'Deduction' not in k['datasource']:
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result.append(k)
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return result
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def get_stats(self):
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data = urllib2.urlopen("http://node0-p-dli.d4science.org:8080/dli/mvc/ui/stats/getAllStats")
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result = {}
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d = json.loads(data.read())
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for item in d:
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result[item] = []
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for k in d[item]:
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if 'Deduction' not in k['datasource']:
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result[item].append(k)
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return result
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def query(self, q, browse_fields, start=None, page_size=10, only_result=False, filter_query=None):
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params = {}
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if browse_fields is not None:
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params['facet'] = 'true',
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params['facet.field'] = browse_fields
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params['facet.mincount'] = 1
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if filter_query is not None:
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params['fq'] = filter_query
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if start is not None:
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params['start'] = start
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response = self.solr_server.search(q, rows=page_size, **params)
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query_response = []
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for hit in response:
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result = hit['__result'][0]
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query_response.append(DLIObject(result.encode('utf8')))
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if not only_result:
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facet = self.get_facet(response.facets['facet_fields'], q)
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else:
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facet = self.get_facet(response.facets['facet_fields'])
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return {'objects': query_response, 'facet': facet, 'total': response.hits}
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