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Add threading to nicebooks.py
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Sengian
parent
da4cdeb1d1
commit
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@ -3,7 +3,8 @@ __license__ = 'GPL 3'
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__copyright__ = '2010, sengian <sengian1@gmail.com>'
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__docformat__ = 'restructuredtext en'
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import sys, textwrap, re, traceback, socket
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import sys, textwrap, re, traceback, socket, threading
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from Queue import Queue
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from urllib import urlencode
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from math import ceil
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from copy import deepcopy
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@ -23,7 +24,7 @@ from calibre.utils.config import OptionParser
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class NiceBooks(MetadataSource):
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name = 'Nicebooks'
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description = _('Downloads metadata from french Nicebooks')
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description = _('Downloads metadata from French Nicebooks')
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supported_platforms = ['windows', 'osx', 'linux']
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author = 'Sengian'
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version = (1, 0, 0)
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@ -78,10 +79,50 @@ class NiceBooksError(Exception):
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class ISBNNotFound(NiceBooksError):
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pass
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class BrowserThread(threading.Thread):
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def __init__(self, url, verbose=False, timeout=10., ex=Exception, name='Meta'):
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self.url = url
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self.ex = ex
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self.name = name
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self.verbose = verbose
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self.timeout = timeout
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self.result = None
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threading.Thread.__init__(self)
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def get_result(self):
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return self.result
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def run(self):
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try:
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raw = browser().open_novisit(self.url, timeout=self.timeout).read()
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except Exception, e:
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report(self.verbose)
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if callable(getattr(e, 'getcode', None)) and \
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e.getcode() == 404:
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self.result = None
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if isinstance(getattr(e, 'args', [None])[0], socket.timeout):
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raise self.ex(_('%s timed out. Try again later.') % self.name)
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raise self.ex(_('%s encountered an error.') % self.name)
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if '<title>404 - ' in raw:
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report(self.verbose)
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self.result = None
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raw = xml_to_unicode(raw, strip_encoding_pats=True,
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resolve_entities=True)[0]
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try:
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self.result = soupparser.fromstring(raw)
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except:
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try:
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#remove ASCII invalid chars
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self.result = soupparser.fromstring(clean_ascii_chars(raw))
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except:
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self.result = None
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def report(verbose):
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if verbose:
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traceback.print_exc()
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class Query(object):
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BASE_URL = 'http://fr.nicebooks.com/'
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@ -224,68 +265,53 @@ class ResultList(list):
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report(verbose)
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return mi
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def fill_MI(self, entry, title, authors, verbose):
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def fill_MI(self, data, verbose):
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'''create and return an mi if possible, None otherwise'''
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try:
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entry = data.xpath("//div[@id='container']/div[@id='book-info']")[0]
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title = self.get_title(entry)
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authors = self.get_authors(entry)
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except Exception, e:
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if verbose:
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print 'Failed to get all details for an entry'
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print e
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return None
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mi = MetaInformation(title, authors)
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mi.author_sort = authors_to_sort_string(authors)
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mi.comments = self.get_description(entry, verbose)
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return self.get_book_info(entry, mi, verbose)
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def get_individual_metadata(self, browser, linkdata, verbose):
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try:
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raw = browser.open_novisit(self.BASE_URL + linkdata).read()
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except Exception, e:
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report(verbose)
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if callable(getattr(e, 'getcode', None)) and \
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e.getcode() == 404:
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return
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if isinstance(getattr(e, 'args', [None])[0], socket.timeout):
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raise NiceBooksError(_('Nicebooks timed out. Try again later.'))
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raise NiceBooksError(_('Nicebooks encountered an error.'))
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if '<title>404 - ' in raw:
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report(verbose)
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return
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raw = xml_to_unicode(raw, strip_encoding_pats=True,
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resolve_entities=True)[0]
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try:
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feed = soupparser.fromstring(raw)
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except:
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try:
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#remove ASCII invalid chars
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feed = soupparser.fromstring(clean_ascii_chars(raw))
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except:
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return None
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def producer(self, q, data, verbose=False):
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for x in data:
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thread = BrowserThread(self.BASE_URL+x, verbose=verbose, ex=NiceBooksError,
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name='Nicebooks')
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thread.start()
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q.put(thread, True)
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# get results
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return feed.xpath("//div[@id='container']")[0]
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def consumer(self, q, total_entries, verbose=False):
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while len(self) < total_entries:
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thread = q.get(True)
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thread.join()
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mi, order = thread.get_result()
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if mi is None:
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self.append(None)
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self.append(self.fill_MI(mi, verbose))
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def populate(self, entries, browser, verbose=False):
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#single entry
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def populate(self, entries, verbose=False, brcall=3):
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if len(entries) == 1 and not isinstance(entries[0], str):
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try:
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entry = entries[0].xpath("//div[@id='container']")[0]
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entry = entry.find("div[@id='book-info']")
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title = self.get_title(entry)
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authors = self.get_authors(entry)
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except Exception, e:
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if verbose:
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print 'Failed to get all details for an entry'
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print e
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return
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self.append(self.fill_MI(entry, title, authors, verbose))
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#single entry
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mi = self.fill_MI(entries[0], verbose)
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if mi:
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self.append(mi)
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else:
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#multiple entries
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for x in entries:
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try:
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entry = self.get_individual_metadata(browser, x, verbose)
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entry = entry.find("div[@id='book-info']")
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title = self.get_title(entry)
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authors = self.get_authors(entry)
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except Exception, e:
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if verbose:
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print 'Failed to get all details for an entry'
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print e
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continue
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self.append(self.fill_MI(entry, title, authors, verbose))
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q = Queue(brcall)
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prod_thread = threading.Thread(target=self.producer, args=(q, entries, verbose))
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cons_thread = threading.Thread(target=self.consumer, args=(q, len(entries), verbose))
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prod_thread.start()
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cons_thread.start()
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prod_thread.join()
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cons_thread.join()
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class Covers(object):
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@ -328,14 +354,14 @@ def search(title=None, author=None, publisher=None, isbn=None,
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max_results=5, verbose=False, keywords=None):
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br = browser()
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entries = Query(title=title, author=author, isbn=isbn, publisher=publisher,
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keywords=keywords, max_results=max_results)(br, verbose,timeout = 10.)
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keywords=keywords, max_results=max_results)(br, verbose, timeout = 10.)
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if entries is None or len(entries) == 0:
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return None
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#List of entry
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ans = ResultList()
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ans.populate(entries, br, verbose)
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ans.populate(entries, verbose)
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return ans
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def check_for_cover(isbn):
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@ -409,3 +435,5 @@ def main(args=sys.argv):
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if __name__ == '__main__':
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sys.exit(main())
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# calibre-debug -e "H:\Mes eBooks\Developpement\calibre\src\calibre\ebooks\metadata\nicebooks.py" -m 5 -a mankel >data.html
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