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senpy/example-plugins/rand_plugin.py

55 lines
2.0 KiB
Python

#
# Copyright 2014 Grupo de Sistemas Inteligentes (GSI) DIT, UPM
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
import random
from senpy import SentimentPlugin, Sentiment, Entry
class RandSent(SentimentPlugin):
'''A sample plugin that returns a random sentiment annotation'''
name = 'sentiment-random'
author = "@balkian"
version = '0.1'
url = "https://github.com/gsi-upm/senpy-plugins-community"
marl__maxPolarityValue = '1'
marl__minPolarityValue = "-1"
def analyse_entry(self, entry, activity):
polarity_value = max(-1, min(1, random.gauss(0.2, 0.2)))
polarity = "marl:Neutral"
if polarity_value > 0:
polarity = "marl:Positive"
elif polarity_value < 0:
polarity = "marl:Negative"
sentiment = Sentiment(marl__hasPolarity=polarity,
marl__polarityValue=polarity_value)
sentiment.prov(activity)
entry.sentiments.append(sentiment)
yield entry
def test(self):
'''Run several random analyses.'''
params = dict()
results = list()
for i in range(50):
activity = self.activity(params)
res = next(self.analyse_entry(Entry(nif__isString="Hello"),
activity))
res.validate()
results.append(res.sentiments[0]['marl:hasPolarity'])
assert 'marl:Positive' in results
assert 'marl:Negative' in results