def SolrQuery(query_filter = "" , q = "*:*" , req_format="json", type="dataset"):
numFound=0
solr_params = {}
solr_params['q'] = q.encode('utf-8')+query_filter+ " AND type:"+type
solr_params['wt'] = req_format
try:
solr_conn = SolrConnection("http://10.0.0.154:8081/solr")
solr_response = solr_conn.raw_query(**solr_params)
#print solr_response
search = json.loads(solr_response)
solr_reponse = search['response']
#print solr_response
numFound = 0
if 'numFound' in solr_reponse:
numFound = solr_reponse.get('numFound',0)
print numFound
except:
traceback.print_exc()
print "exception"
pass
return (solr_response,numFound)
import json
import codecs
solrhost = "http://localhost:8080/solr"
s = SolrConnection(solrhost)
fieldnames = ['silo', 'id', 'uuid', 'aggregatedResource', 'created', 'creator', 'currentVersion', 'date', 'dateAccepted', 'dateCopyrighted', 'dateSubmitted', 'description', 'embargoStatus', 'embargoedUntilDate', 'mediator', 'isPartOf', 'isVersionOf', 'license', 'modified', 'publisher', 'rights', 'subject', 'timestamp', 'title', 'type']
solr_params = {}
solr_params['q'] = "silo:digitalbooks"
solr_params['wt'] = 'json'
solr_params['fl'] = ','.join(fieldnames)
solr_params['rows'] = 500000
solr_params['start'] = 0
solr_response = s.raw_query(**solr_params)
numFound = 0
docs = None
fname = "digitalbooks.csv"
delimiter = '$'
if solr_response:
ans = json.loads(solr_response)
numFound = ans['response'].get('numFound',None)
try:
numFound = int(numFound)
except:
numFound = 0
docs = ans['response'].get('docs',None)
if numfound > 0 and docs: