Subversion Repositories SmartDukaan

import urllib2

from BeautifulSoup import BeautifulSoup

import pymongo

import re

from dtr.utils.utils import to_java_date

from datetime import datetime

con = None

bestSellers = []

now = datetime.now()

class __RankInfo:

    def __init__(self, identifier, rank):

        self.identifier = identifier

        self.rank  = rank

def get_mongo_connection(host='localhost', port=27017):

    global con

    if con is None:

        print "Establishing connection %s host and port %d" %(host,port)

        try:

            con = pymongo.MongoClient(host, port)

        except Exception, e:

            print e

            return None

    return con

def getSoupObject(url):

    print "Getting soup object for"

    print url

    global RETRY_COUNT

    RETRY_COUNT = 1 

    while RETRY_COUNT < 10:

        try:

            soup = None

            request = urllib2.Request(url)

            request.add_header('Accept','text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8')

            request.add_header('Accept-Language','en-US,en;q=0.8,hi;q=0.6')

            request.add_header('Connection','keep-alive')

            request.add_header('User-Agent','Mozilla/5.0 (X11; Linux i686) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/37.0.2062.120 Safari/537.36')

            response = urllib2.urlopen(request)   

            response_data = response.read()

            response.close()

            try:

                page=response_data.decode("utf-8")

                soup = BeautifulSoup(page,convertEntities=BeautifulSoup.HTML_ENTITIES)

            except:

                soup = BeautifulSoup(response_data,convertEntities=BeautifulSoup.HTML_ENTITIES)

            if soup is None:

                raise

            return soup

        except Exception as e:

            print e

            print "Retrying"

            RETRY_COUNT = RETRY_COUNT + 1

def scrapeBestSellerMobiles():

    global bestSellers

    rank = 0

    for i in [1, 21, 41, 61, 81]:

        url = "http://www.flipkart.com/mobiles/~bestsellers/pr?p[]=sort=popularity&sid=tyy,4io&start=%d&ajax=true" %(i)

        soup = getSoupObject(url)

        product_divs = soup.findAll('div',{'class':re.compile('.*browse-product')})

        for x in product_divs:

            rank  = rank +1

            print rank,

            print '\t',

            print x['data-pid']

            r_info = __RankInfo(x['data-pid'].strip(),rank)

            bestSellers.append(r_info)

def scrapeBestSellerTablets():

    global bestSellers

    bestSellers = []

    rank = 0

    for i in [1, 21, 41, 61, 81]:

        url = "http://www.flipkart.com/tablets/~bestsellers/pr?p[]=sort=popularity&sid=tyy,hry&start=%d&ajax=true" %(i)

        soup = getSoupObject(url)

        product_divs = soup.findAll('div',{'class':re.compile('.*browse-product')})

        for x in product_divs:

            rank  = rank +1

            print rank,

            print '\t',

            print x['data-pid']

            r_info = __RankInfo(x['data-pid'].strip(),rank)

            bestSellers.append(r_info)

def commitBestSellers():

    for x in bestSellers:

        print x.rank,

        print '\t',

        print x.identifier,

        col = get_mongo_connection().Catalog.MasterData.find({'identifier':x.identifier.strip()})

        print "count sku",

        print '\t',

        print len(list(col))

        get_mongo_connection().Catalog.MasterData.update({'identifier':x.identifier.strip()}, {'$set' : {'rank':x.rank,'updatedOn':to_java_date(now)}}, multi=True)

def resetRanks(category):

    oldRankedItems = get_mongo_connection().Catalog.MasterData.find({'rank':{'$gt':0},'source_id':2,'category':category})

    for item in oldRankedItems:

        get_mongo_connection().Catalog.MasterData.update({'_id':item['_id']}, {'$set' : {'rank':0,'updatedOn':to_java_date(now)}}, multi=True)

def main():

    scrapeBestSellerMobiles()

    if len(bestSellers) > 0:

        resetRanks('Mobiles')

        commitBestSellers()

    scrapeBestSellerTablets()

    if len(bestSellers) > 0:

        resetRanks('Tablets')

        commitBestSellers()

if __name__=='__main__':

    main()