def process_book(book_obj):
obj_id = book_obj.object_id
max_book_id[0] = max(int(obj_id), max_book_id[0])
for field in book_obj.object_fields:
field_id = field.field_id
if field.field_file_path:
field_value = open(field.field_file_path).read()
else:
field_value = field.field_value
if not type(field_value) == str:
print obj_id, ":", field_id, " - not a string value"
continue
tokens_matches = span_tokenize_windows1251(field_value)
for first_match_index in xrange(0, len(tokens_matches), SEGMENT_SIZE):
last_match_index = min(first_match_index + SEGMENT_SIZE - 1, len(tokens_matches) - 1)
first_match = tokens_matches[first_match_index]
last_match = tokens_matches[last_match_index]
segment_start = first_match[0]
segment_length = last_match[0] + last_match[1] - segment_start
segment_id = segment_index_writer.add_segment(obj_id, field_id, segment_start, segment_length)
for match_index in xrange(first_match_index, last_match_index + 1):
segment_match = tokens_matches[match_index]
segment_match_index = match_index - first_match_index
segment_token = segment_match[-1]
match_case = segment_match[-2]
word_case_weight = match_case == CASE_UPPER and 2 or match_case == CASE_TITLE and 1 or 0
code = match2code(segment_id, int(obj_id), segment_match_index, word_case_weight)
to_word_index(segment_token, code)
books_counter.add()
def find_title(self, title_query):
matched_objects = None
for match in span_tokenize_windows1251(title_query):
token = unify_word(match[-1].decode("windows-1251"))
if not token in self.title_index:
return []
if matched_objects == None:
matched_objects = set(self.title_index[token])
else:
matched_objects &= set(self.title_index[token])
if not matched_objects:
return []
return matched_objects
def find_mentions_of_author_and_title(self, query):
tokens = [unify_word(match[-1].decode("windows-1251")) \
for match in span_tokenize_windows1251(query.encode("windows-1251"))[:10]]
tokens = set(tokens)
books_scores = {}
for token in tokens:
if token in self.title_index:
for obj_id in set(self.title_index[token]):
books_scores.setdefault(obj_id, 0)
books_scores[obj_id] += 1
if token in self.author_index:
for obj_id in set(self.author_index[token]):
books_scores.setdefault(obj_id, 0)
books_scores[obj_id] += 1
import math
min_match = math.ceil(len(tokens) * 0.6)
matched_books = [(matched_tokens, book) for book, matched_tokens in books_scores.items() \
if matched_tokens >= min_match]
matched_books.sort(reverse=True)
matched_books = [book for _, book in matched_books]
return matched_books
def add_title(self, title, object_id):
for match in span_tokenize_windows1251(title):
token = unify_word(match[-1].decode("windows-1251"))
self.title_index.setdefault(token, []).append(object_id)
def get_surname(author_str_windows1251):
words = [unify_word(match[-1].decode("windows-1251")) for match in span_tokenize_windows1251(author_str_windows1251)]
if not words:
return ""
surname = max((len(word), word) for word in words)[1]
return surname
