library.py 8.61 KB
Newer Older
1
# -*- coding: utf-8 -*-
Janez K's avatar
Janez K committed
2 3 4 5 6 7
'''
Streaming widgets librarby

@author: Janez Kranjc <janez.kranjc@ijs.si>
'''

8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45
def streaming_split_pos_neg(input_dict):

    tweets = input_dict['ltw']

    positive_tweets = []
    negative_tweets = []

    for tweet in tweets:
        try:
            if tweet['sentiment']=="Positive":
                positive_tweets.append(tweet)
            if tweet['sentiment']=="Negative" and tweet['reliability']!=-1.0:
                negative_tweets.append(tweet)
        except:
            pass

    output_dict = {}

    output_dict['ptw']=positive_tweets
    output_dict['ntw']=negative_tweets
    return output_dict

def streaming_filter_tweets_by_language(input_dict):

    language = input_dict['lang']

    tweets = input_dict['ltw']

    new_tweets = []

    for tweet in tweets:
        if tweet['lang']==language:
            new_tweets.append(tweet)

    output_dict = {}
    output_dict['ltw']=new_tweets
    return output_dict

Janez K's avatar
Janez K committed
46
def streaming_display_tweets(input_dict,widget,stream=None):
Janez K's avatar
Janez K committed
47 48 49 50 51 52
    from streams.models import StreamWidgetData
    if stream is None:
        return {}
    else:
        try:
            swd = StreamWidgetData.objects.get(stream=stream,widget=widget)
Janez K's avatar
Janez K committed
53 54 55
            swd.value = input_dict['ltw']
            swd.save()
        except:
Janez K's avatar
Janez K committed
56 57 58
            swd = StreamWidgetData()
            swd.stream = stream
            swd.widget = widget
Janez K's avatar
Janez K committed
59
            data = input_dict['ltw']
Janez K's avatar
Janez K committed
60 61
            swd.value = data
            swd.save()
Janez K's avatar
Janez K committed
62 63 64 65 66 67 68 69 70 71 72
        return {}

def streaming_collect_and_display_tweets(input_dict,widget,stream=None):
    from streams.models import StreamWidgetData
    if stream is None:
        return {}
    else:
        new_tweets = []
        for tweet in input_dict['ltw']:
            new_tweets.append(StreamWidgetData(stream=stream,widget=widget,value=tweet))
        StreamWidgetData.objects.bulk_create(new_tweets)
Janez K's avatar
Janez K committed
73 74
        return {}

Janez K's avatar
Janez K committed
75 76 77 78 79
def streaming_sentiment_graph(input_dict,widget,stream=None):
    from streams.models import StreamWidgetData
    if stream is None:
        return {}
    else:
Janez K's avatar
Janez K committed
80 81 82 83
        new_tweets = []
        for tweet in input_dict['ltw']:
            new_tweets.append(StreamWidgetData(stream=stream,widget=widget,value=tweet))
        StreamWidgetData.objects.bulk_create(new_tweets)
Janez K's avatar
Janez K committed
84 85
        return {}

86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102
def streaming_tweet_sentiment_service(input_dict,widget,stream=None):
    import pickle
    from pysimplesoap.client import SoapClient, SoapFault

    client = SoapClient(location = "http://batman.ijs.si:8008/",action = 'http://batman.ijs.si:8008/',namespace = "http://example.com/tweetsentiment.wsdl",soap_ns='soap',trace = False,ns = False)

    list_of_tweets = input_dict['ltw']

    new_list_of_tweets = []

    for tweet in list_of_tweets:
        new_list_of_tweets.append({'id':tweet['id'],'text':tweet['text'],'language':tweet['lang']})

    pickled_list_of_tweets = pickle.dumps(new_list_of_tweets)

    response = client.TweetSentimentService(tweets=pickled_list_of_tweets)

Janez K's avatar
Janez K committed
103
    new_ltw = pickle.loads(str(response.TweetSentimentResult))
104 105 106 107 108 109 110 111

    i=0
    for new_tweet in new_ltw:
        list_of_tweets[i]['sentiment']=new_tweet['sentiment']
        list_of_tweets[i]['lang']=new_tweet['language']
        list_of_tweets[i]['reliability']=new_tweet['reliability']
        i = i + 1

Janez K's avatar
Janez K committed
112
    output_dict = {}
113 114 115

    output_dict['ltw'] = list_of_tweets

Janez K's avatar
Janez K committed
116 117
    return output_dict

118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194
def streaming_twitter(input_dict,widget,stream=None):
    import tweepy
    from streams.models import StreamWidgetData
    from streams.models import HaltStream

    if input_dict['cfauth']=="true":
        consumer_key="zmK41mqxU3ZNJTFQpYwTdg"
        consumer_secret="9StnKNAe20ebDOREQjsVjAjBEiz5R9feZJTGUYWqLo"
        access_token="45210078-VydgdJMwhWYjZRvlNbrKj6jfqicUIsdMnRbnaPElL"
        access_token_secret="uLvIN3MMxFSxdK4M8P5RYojjUkbc2reqNydYtpT7Ks"
    else:
        consumer_key = input_dict['ck']
        consumer_secret = input_dict['cs']
        access_token = input_dict['at']
        access_token_secret = input_dict['as']

    auth = tweepy.OAuthHandler(consumer_key, consumer_secret)
    auth.set_access_token(access_token, access_token_secret)

    api = tweepy.API(auth)

    query = input_dict['query']

    rate_limit_status = api.rate_limit_status()

    if rate_limit_status['resources']['search']['/search/tweets']['remaining']>0:

        if stream is None:
            try:
                ltw = api.new_search(q=input_dict['query'],geocode=input_dict['geocode'],count=100)
            except Exception as e:
                raise HaltStream("The Twitter API returned an error: "+str(e))
        else:
            try:
                swd = StreamWidgetData.objects.get(stream=stream,widget=widget)
                data = swd.value
            except Exception as e:
                swd = StreamWidgetData()
                swd.stream = stream
                swd.widget = widget
                data = {}
                swd.value = data
                swd.save()
            if data.has_key(query):
                since_id = data[query]
                try:
                    ltw = api.new_search(q=input_dict['query'],geocode=input_dict['geocode'],count=100,since_id=since_id)
                except Exception as e:
                    raise HaltStream("The Twitter API returned an error: "+str(e))
            else:
                try:
                    ltw = api.new_search(q=input_dict['query'],geocode=input_dict['geocode'],count=100)
                except Exception as e:
                    raise HaltStream("The Twitter API returned an error: "+str(e))
            if len(ltw)>0:
                data[query]=ltw[0].id
                swd.value = data
                swd.save()
    else:
        import datetime
        import time
        current_time = int(time.mktime(datetime.datetime.now().timetuple()))
        remaining = rate_limit_status['resources']['search']['/search/tweets']['reset']-current_time
        if input_dict['cfauth']=="true":
            raise HaltStream("The twitter API limit has been reached. Try again in "+str(remaining)+" seconds. Try using your own credentials.")
        else:
            raise HaltStream("The twitter API limit has been reached. Try again in "+str(remaining)+" seconds.")

    output_dict = {}

    tweets = []

    for tw in ltw:
        tweet = {}
        tweet['id'] = tw.id
        tweet['created_at'] = tw.created_at
        tweet['text'] = unicode(tw.text).encode("utf-8")
Janez K's avatar
Janez K committed
195 196 197 198
        try:
            tweet['user'] = tw.user['screen_name']
        except:
            tweet['user'] = ""
199 200 201 202 203 204 205 206 207
        tweet['lang'] = tw.lang
        tweets.append(tweet)

    if len(tweets)>0 or stream is None:
        output_dict['ltw']=tweets
        return output_dict
    else:
        raise HaltStream("No new results, halting stream.")

Janez K's avatar
Janez K committed
208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228
def streaming_rss_reader(input_dict,widget,stream=None):
    import feedparser
    from streams.models import StreamWidgetData
    feed = feedparser.parse(input_dict['url'])
    output_dict = {}
    if stream is None:
        output_dict['url'] = feed['items'][0]['link']
    else:
        try:
            swd = StreamWidgetData.objects.get(stream=stream,widget=widget)
            data = swd.value
        except:
            swd = StreamWidgetData()
            swd.stream = stream
            swd.widget = widget
            data = []
            swd.value = data
            swd.save()
        feed_length = len(feed['items'])
        feed['items'].reverse()
        for item in feed['items']:
Janez K's avatar
Janez K committed
229 230
            if item['link'] not in data:
                data.append(item['link'])
Janez K's avatar
Janez K committed
231 232 233 234 235
                swd.value = data
                swd.save()
                output_dict['url'] = item['link']
                break
        else:
Janez K's avatar
Janez K committed
236 237 238
            from streams.models import HaltStream
            raise HaltStream("Halting stream.")
    return output_dict
Janez K's avatar
Janez K committed
239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267


def streaming_sliding_window(input_dict,widget,stream=None):
    from streams.models import StreamWidgetData
    output_dict = {}
    if stream is None:
        output_dict['list']=input_dict['list'][:int(input_dict['size'])]
    else:
        try:
            swd = StreamWidgetData.objects.get(stream=stream,widget=widget)
            data = swd.value
        except:
            swd = StreamWidgetData()
            swd.stream = stream
            swd.widget = widget
            data = []
            swd.value = data
            swd.save()
        size = int(input_dict['size'])
        if len(input_dict['list'])>=size:
            output_dict['list']=input_dict['list'][:size]
            swd.value=output_dict['list']
            swd.save()
        else:
            current_window = input_dict['list'] + swd.value
            swd.value = current_window[:size]
            output_dict['list']=current_window[:size]
            swd.save()
    return output_dict