diff options
Diffstat (limited to 'pyaggr3g470r/lib/crawler.py')
| -rw-r--r-- | pyaggr3g470r/lib/crawler.py | 53 |
1 files changed, 32 insertions, 21 deletions
diff --git a/pyaggr3g470r/lib/crawler.py b/pyaggr3g470r/lib/crawler.py index de770934..5525c7de 100644 --- a/pyaggr3g470r/lib/crawler.py +++ b/pyaggr3g470r/lib/crawler.py @@ -1,9 +1,11 @@ +import time import conf import json import logging import requests import feedparser import dateutil.parser +from functools import wraps from datetime import datetime from concurrent.futures import ThreadPoolExecutor from requests_futures.sessions import FuturesSession @@ -35,6 +37,7 @@ def extract_id(entry, keys=[('link', 'link'), class AbstractCrawler: __session__ = None + __counter__ = 0 def __init__(self, auth): self.auth = auth @@ -49,6 +52,16 @@ class AbstractCrawler: cls.__session__.verify = False return cls.__session__ + @classmethod + def count_on_me(cls, func): + @wraps(func) + def wrapper(*args, **kwargs): + cls.__counter__ += 1 + result = func(*args, **kwargs) + cls.__counter__ -= 1 + return result + return wrapper + def query_pyagg(self, method, urn, data=None): if data is None: data = {} @@ -58,6 +71,12 @@ class AbstractCrawler: default=default_handler), headers={'Content-Type': 'application/json'}) + @classmethod + def wait(self): + time.sleep(1) + while self.__counter__: + time.sleep(1) + class PyAggUpdater(AbstractCrawler): @@ -93,25 +112,14 @@ class PyAggUpdater(AbstractCrawler): 'retrieved_date': date.isoformat(), 'date': date.isoformat()} + @AbstractCrawler.count_on_me def callback(self, response): - try: - results = response.result().json() - except Exception: - logger.exception('something went wront with feed %r %r %r %r', - self.feed, self.headers, response.result(), - getattr(response.result(), 'data', None)) - return - logger.debug('%r %r - %d entries were not matched', + results = response.result().json() + logger.debug('%r %r - %d entries were not matched and will be created', self.feed['id'], self.feed['title'], len(results)) for id_to_create in results: entry = self.entries[tuple(sorted(id_to_create.items()))] - try: - logger.debug('creating %r - %r', entry['title'], id_to_create) - self.to_article(entry) - except: - logger.exception('%r %r %r something failed when parsing %r', - self.feed['title'], self.feed['id'], - self.feed['link'], entry) + logger.info('creating %r - %r', entry['title'], id_to_create) self.query_pyagg('post', 'article', self.to_article(entry)) now = datetime.now() @@ -130,6 +138,7 @@ class FeedCrawler(AbstractCrawler): self.feed = feed super(FeedCrawler, self).__init__(auth) + @AbstractCrawler.count_on_me def callback(self, response): try: response = response.result() @@ -137,22 +146,22 @@ class FeedCrawler(AbstractCrawler): except Exception as error: error_count = self.feed['error_count'] + 1 logger.warn('%r %r - an error occured while fetching feed; bumping' - ' error count to %r', self.feed['title'], - self.feed['id'], error_count) + ' error count to %r', self.feed['id'], + self.feed['title'], error_count) self.query_pyagg('put', 'feed/%d' % self.feed['id'], {'error_count': error_count, 'last_error': str(error)}) return if response.status_code == 304: - logger.debug("%r %r - feed responded with 304", + logger.info("%r %r - feed responded with 304", self.feed['id'], self.feed['title']) return if self.feed['etag'] and response.headers.get('etag') \ and response.headers.get('etag') == self.feed['etag']: - logger.debug("%r %r - feed responded with same etag (%d) %r", + logger.info("%r %r - feed responded with same etag (%d)", self.feed['id'], self.feed['title'], - response.status_code, self.feed['link']) + response.status_code) return ids, entries = [], {} parsed_response = feedparser.parse(response.text) @@ -176,12 +185,13 @@ class CrawlerScheduler(AbstractCrawler): headers = {} if feed.get('etag', None): headers['If-None-Match'] = feed['etag'] - elif feed.get('last_modified'): + if feed.get('last_modified'): headers['If-Modified-Since'] = feed['last_modified'] logger.debug('%r %r - calculated headers %r', feed['id'], feed['title'], headers) return headers + @AbstractCrawler.count_on_me def callback(self, response): response = response.result() response.raise_for_status() @@ -194,6 +204,7 @@ class CrawlerScheduler(AbstractCrawler): headers=self.prepare_headers(feed)) future.add_done_callback(FeedCrawler(feed, self.auth).callback) + @AbstractCrawler.count_on_me def run(self, **kwargs): logger.debug('retreving fetchable feed') future = self.query_pyagg('get', 'feeds/fetchable', kwargs) |