| import os.path |
| from os import remove |
| from re import split |
|
|
|
|
| class FileIO(object): |
| def __init__(self): |
| pass |
|
|
| @staticmethod |
| def write_file(dir, file, content, op='w'): |
| if not os.path.exists(dir): |
| os.makedirs(dir) |
| with open(dir + file, op) as f: |
| f.writelines(content) |
|
|
| @staticmethod |
| def delete_file(file_path): |
| if os.path.exists(file_path): |
| remove(file_path) |
|
|
| @staticmethod |
| def load_data_set(file, dtype): |
| data = [] |
| if dtype == 'graph': |
| with open(file) as f: |
| for line in f: |
| items = split(' ', line.strip()) |
| user_id = items[0] |
| item_id = items[1] |
| weight = items[2] |
| data.append([user_id, item_id, float(weight)]) |
|
|
| if dtype == 'sequential': |
| training_data, test_data = [], [] |
| with open(file) as f: |
| for line in f: |
| items = split(':', line.strip()) |
| user_id = items[0] |
| seq = items[1].strip().split() |
| training_data.append(seq[:-1]) |
| test_data.append(seq[-1]) |
| data = (training_data, test_data) |
| return data |
|
|
| @staticmethod |
| def load_user_list(file): |
| user_list = [] |
| print('loading user List...') |
| with open(file) as f: |
| for line in f: |
| user_list.append(line.strip().split()[0]) |
| return user_list |
|
|
| @staticmethod |
| def load_social_data(file): |
| social_data = [] |
| print('loading social data...') |
| with open(file) as f: |
| for line in f: |
| items = split(' ', line.strip()) |
| user1 = items[0] |
| user2 = items[1] |
| if len(items) < 3: |
| weight = 1 |
| else: |
| weight = float(items[2]) |
| social_data.append([user1, user2, weight]) |
| return social_data |
|
|
