115 lines
3.4 KiB
Python
115 lines
3.4 KiB
Python
from __future__ import unicode_literals
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from xml.etree import ElementTree as ET
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import datetime
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import boto3
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from moto.core import BaseBackend, BaseModel
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from .resources import VOICE_DATA
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from .utils import make_arn_for_lexicon
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DEFAULT_ACCOUNT_ID = 123456789012
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class Lexicon(BaseModel):
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def __init__(self, name, content, region_name):
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self.name = name
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self.content = content
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self.size = 0
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self.alphabet = None
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self.last_modified = None
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self.language_code = None
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self.lexemes_count = 0
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self.arn = make_arn_for_lexicon(DEFAULT_ACCOUNT_ID, name, region_name)
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self.update()
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def update(self, content=None):
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if content is not None:
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self.content = content
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# Probably a very naive approach, but it'll do for now.
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try:
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root = ET.fromstring(self.content)
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self.size = len(self.content)
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self.last_modified = int((datetime.datetime.now() -
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datetime.datetime(1970, 1, 1)).total_seconds())
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self.lexemes_count = len(root.findall('.'))
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for key, value in root.attrib.items():
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if key.endswith('alphabet'):
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self.alphabet = value
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elif key.endswith('lang'):
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self.language_code = value
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except Exception as err:
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raise ValueError('Failure parsing XML: {0}'.format(err))
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def to_dict(self):
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return {
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'Attributes': {
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'Alphabet': self.alphabet,
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'LanguageCode': self.language_code,
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'LastModified': self.last_modified,
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'LexemesCount': self.lexemes_count,
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'LexiconArn': self.arn,
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'Size': self.size
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}
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}
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def __repr__(self):
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return '<Lexicon {0}>'.format(self.name)
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class PollyBackend(BaseBackend):
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def __init__(self, region_name=None):
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super(PollyBackend, self).__init__()
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self.region_name = region_name
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self._lexicons = {}
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def reset(self):
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region_name = self.region_name
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self.__dict__ = {}
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self.__init__(region_name)
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def describe_voices(self, language_code, next_token):
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if language_code is None:
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return VOICE_DATA
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return [item for item in VOICE_DATA if item['LanguageCode'] == language_code]
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def delete_lexicon(self, name):
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# implement here
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del self._lexicons[name]
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def get_lexicon(self, name):
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# Raises KeyError
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return self._lexicons[name]
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def list_lexicons(self, next_token):
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result = []
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for name, lexicon in self._lexicons.items():
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lexicon_dict = lexicon.to_dict()
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lexicon_dict['Name'] = name
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result.append(lexicon_dict)
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return result
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def put_lexicon(self, name, content):
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# If lexicon content is bad, it will raise ValueError
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if name in self._lexicons:
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# Regenerated all the stats from the XML
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# but keeps the ARN
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self._lexicons.update(content)
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else:
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lexicon = Lexicon(name, content, region_name=self.region_name)
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self._lexicons[name] = lexicon
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available_regions = boto3.session.Session().get_available_regions("polly")
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polly_backends = {region: PollyBackend(region_name=region) for region in available_regions}
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