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import urllib2
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from flask import json
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from DLIObject import DLIObject
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import pysolr
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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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"""
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def get_pointing_to(self, query, pointing_type):
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result = self.solr_server.search(q=query, rows=10, **{
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'facet': 'true',
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'facet.field': ['relatedobjtype'],
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'fq': 'entitytype:"%s"' % pointing_type
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})
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fields = result.facets['facet_fields']
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return [{'key': fields['relatedobjtype'][i], 'value': fields['relatedobjtype'][i + 1]} for i in
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range(0, len(fields['relatedobjtype']), 2)]
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"""
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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.d.dli.research-infrastructures.eu:8080/dli/mvc/ui/stats/getLastStats")
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return json.loads(data.read())
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"""
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response =self.solr_server.search(q='*:*', rows=0, **{
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'facet':'true',
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'facet.field':['provenance', 'relationprovenance']
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})
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res = response.facets['facet_fields']
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data= res['provenance']
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repo_name = [data[i] for i in range(len(data)) if (i % 2) == 0]
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stat_dict = {}
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total_item = [(data[i], data[i+1]) for i in range(len(data)) if (i % 2) == 0]
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for repo in repo_name:
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stat_dict[repo] ={'totalObject': 0, 'totalPublication': 0, 'totalDatasets': 0, 'totalRelations': 0}
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for item in total_item:
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stat_dict[item[0]]['totalObject'] =item[1]
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data= res['relationprovenance']
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total_rels = [(data[i], data[i+1]) for i in range(len(data)) if (i % 2) == 0]
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for item in total_rels:
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if item[0] not in stat_dict:
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stat_dict[item[0]] ={'totalObject': 0, 'totalPublication': 0, 'totalDatasets': 0, 'totalRelations': 0}
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stat_dict[item[0]]['totalRelations'] =item[1]
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response =self.solr_server.search(q='*:*', rows=0, **{
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'facet':'true',
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'facet.field':['provenance'],
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'fq': ['entitytype:"publication"']
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})
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res = response.facets['facet_fields']
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data= res['provenance']
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total_pubs = [(data[i], data[i+1]) for i in range(len(data)) if (i % 2) == 0]
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for item in total_pubs:
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if item[0] not in stat_dict:
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stat_dict[item[0]] = {'totalObject': 0, 'totalPublication': 0, 'totalDatasets': 0, 'totalRelations': 0}
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stat_dict[item[0]]['totalPublication'] =item[1]
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response =self.solr_server.search(q='*:*', rows=0, **{
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'facet':'true',
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'facet.field':['provenance'],
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'fq': ['entitytype:"dataset"'] })
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res = response.facets['facet_fields']
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data= res['provenance']
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total_datasets = [(data[i], data[i+1]) for i in range(len(data)) if (i % 2) == 0]
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for item in total_datasets:
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if item[0] not in stat_dict:
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stat_dict[item[0]] ={}
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stat_dict[item[0]]['totalDatasets'] =item[1]
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stats =[]
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for item in stat_dict:
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data = stat_dict[item]
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data['name'] = item
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stats.append(data)
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return stats
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"""
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def get_stats(self):
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data =urllib2.urlopen("http://node0.d.dli.research-infrastructures.eu:8080/dli/mvc/ui/stats/getAllStats")
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return json.loads(data.read())
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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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