def _split_file(self, path):
pth = path
pth_dirname = pth.parent
outdir = pth_dirname.joinpath(pth.stem)
outdir.mkdir(parents=True, exist_ok=True)
fs = FileSplit(file=pth, splitsize=1_100_000, output_dir=outdir)
fs.split()
def main(filename):
pth = Path(filename).resolve()
assert pth.exists(), pth
pth_dirname = pth.parent
outdir = pth.joinpath(pth.stem)
outdir_relative = outdir.relative_to(pth)
outdir_relative.mkdir(parents=True, exist_ok=True)
fs = FileSplit(file=pth, splitsize=1_100_000, output_dir=outdir_relative)
fs.split()
def sharding(file_name):
try:
os.makedirs('sample_sharded')
except:
pass
filesize = str(os.path.getsize(file_name)).zfill(16)
fs = FileSplit(file=file_name,
splitsize=int(filesize) / 4,
output_dir="sample_sharded/")
fs.split()
def write_func(outputs, filenames):
for filename in filenames:
fndir = filename.parent
fndir.mkdir(parents=True, exist_ok=True)
for output, filename in zip(outputs, filenames):
with open(filename, 'w') as f:
f.write(output.getvalue())
for filename in filenames:
dirname = filename.parent
new_pth_cmpts = dirname.relative_to(self.basedir)
outdir = self.basedir.joinpath(new_pth_cmpts)
fs = FileSplit(file=filename, splitsize=1_100_000, output_dir=outdir)
fs.split()
def upload_to_hdfs(input_dir, output_dir, chunk_size):
# locate files in directory
files = [
os.path.abspath("{}/{}".format(input_dir, f))
for f in listdir(input_dir) if isfile(join(input_dir, f))
]
tmp_dir = "{}/tmp".format(input_dir)
# setup temp dir
if os.path.isdir(tmp_dir):
shutil.rmtree(tmp_dir)
os.mkdir(tmp_dir)
# split files into 128mb chunks
for f in files:
fs = FileSplit(file=f,
splitsize=(chunk_size) * 1e6,
output_dir=tmp_dir)
fs.split(callback=split_callback)
# upload to hdfs
hdfs_client = InsecureClient("http://{}:9870".format(
settings.HDFS_HOST_VALUE),
user=settings.HDFS_USER_VALUE)
# delete existing output dir
if hdfs_client.content(output_dir, strict=False) != None:
hdfs_client.delete(output_dir, recursive=True)
# upload files to tmp dir
remote_path = hdfs_client.upload(hdfs_path="/tmp",
local_path=tmp_dir,
n_threads=-1,
overwrite=True)
# rename to output_dir
hdfs_client.rename("/tmp", output_dir)
print(
"{} files uploaded to hdfs host '{}{}' ({} file chunks total)".format(
len(files),
settings.HDFS_HOST_VALUE,
output_dir,
len(split_files),
))
# delete temp files
shutil.rmtree(tmp_dir)
return hdfs_file_paths
def split_file(file_to_split, number_of_chunks):
file_size = os.path.getsize(file_to_split)
split_size = file_size/(number_of_chunks-1)
splitted_file_path = os.path.join(settings.MEDIA_ROOT, "splitted_file")
# os.makedirs(splitted_file_path)
fs = FileSplit(file_to_split, split_size, splitted_file_path)
try:
fs.split()
os.remove(file_to_split)
except e as Exception:
print(e)
return False
else:
return splitted_file_path
def main():
dev_limits = config_get_dev_limits()
token = api_get_token()
pair_index = 0
for dev_upload_path in config_get_dev_paths()["upload_pairs"]:
file_id = api_get_file_id(token, None, pair_index)
upload_url = api_create_upload_session(token, pair_index)
total_size = fs_get_upload_size(pair_index)
if total_size > dev_limits["upload_partition_limit"]:
limit = dev_limits["upload_partition_limit"]
print_message(
"Greater than " + str(limit / 1024 / 1024) +
" MB - need to split into chunks", "UPLOAD", "verbose")
with tempfile.TemporaryDirectory(
dir=fs_get_parent_dir()) as tmpdirname:
print_message("Created temporary directory: " + tmpdirname,
"UPLOAD", "verbose")
fs = FileSplit(file=dev_upload_path,
splitsize=limit,
output_dir=tmpdirname)
fs.split()
chunks = get_chunks(tmpdirname, pair_index)
start_byte = 0
for chunk_name in chunks:
chunk_path = fs_get_chunk_full_path(tmpdirname, chunk_name)
chunk_size = fs_get_chunk_size(chunk_path)
if chunk_size > limit:
raise RuntimeError(
"There was a problem partitioning the tar file")
with open(chunk_path, 'rb') as chunk:
payload = chunk.read()
api_upload_chunk(upload_url, start_byte,
start_byte + chunk_size - 1, total_size,
payload)
start_byte += chunk_size
else:
print_message("Uploading entire file in one chunk", "UPLOAD",
"verbose")
with open(dev_upload_path, 'rb') as file:
payload = file.read()
api_upload_chunk(upload_url, 0, total_size - 1, total_size,
payload)
maintain_size(token, file_id, pair_index)
pair_index += 1
def dispatchFile(fileName: str, nodeList: list):
fs = FileSplit(
file=fileName,
splitsize=math.ceil(os.path.getsize(fileName) / len(nodeList)) + 10,
output_dir='.')
def func(filePath, size, count):
print("Dispatching file: {0}, size: {1}, count: {2}".format(
filePath, size, count))
num = int(filePath.split('_')[-1].split('.')[0]) - 1
send_file(nodeList[num], filePath, filePath.split('/')[-1])
os.remove(filePath)
fs.split(callback=func)
def split_file(root_path, split_size_mb, output_path):
# Converts Mb to Bytes
split_size_mb = split_size_mb * 1048576
# Collect files from root path
file_path = collect_files(root_path)
for file in file_path:
# Create Output Directory
export_path = create_dir(file, output_path)
# Reads File
fs = FileSplit(file=file,
splitsize=split_size_mb,
output_dir=export_path)
# Splits file
fs.split(include_header=True, callback=split_file_stats)
class DMFCSV:
def __init__(self, database="", table_name="", file_data=[]):
self.__file_name = "_".join([database, table_name])
self.__data = file_data
def write_csv(self):
with open(".".join([self.__file_name, FILE_EXT]), 'w') as csvfile:
self.__data_writer = csv.writer(csvfile)
self.__data_writer.writerows(self.__data)
return True
def split_csv(self):
self.__fs = FileSplit(file=".".join(
[self.__file_name, FILE_EXT]), splitsize=SPLIT_SIZE)
return self.__fs.split(include_header=True)
def split(file): # File split function
fs = FileSystemStorage()
filename = fs.save(file.name, file)
source = os.path.join(MEDIA_ROOT, filename)
dest = os.path.join(MEDIA_ROOT, 'temp/')
chunks = (int)((file.size) / 3)
fs = FileSplit(source, chunks, dest)
fs.split()
os.remove(source)
fname = filename.split('.')
dest1 = dest + fname[0] + '_3.' + fname[1]
dest2 = dest + fname[0] + '_4.' + fname[1]
if (os.path.exists(dest1)):
with open(dest1, 'ab') as f:
fl = open(dest2, 'rb').read()
f.write(b'\n' + fl)
os.remove(dest2)
def split_csv(file_name='', file_ext='csv'):
fs = FileSplit(file=".".join([file_name, file_ext]), splitsize=10)
# fs = FileSplit(file=".".join([file_name, file_ext]), splitsize=1000000000)
return fs.split(include_header=True)
from fsplit.filesplit import FileSplit fs = FileSplit(file='path/to/file', splitsize=500000000, output_dir='/path/to/output directory/') https://pypi.org/project/filesplit/
def app_main(config):
"""
Main loop of the program
1. Split the input file into chunks
2. Create a pool of worker processes and distribute the chunks between the processes
3. Write the combined dataframe to a file
"""
logger.info("in app_main")
# initialize some variables that we need
dns_data = None
logger.info("configured action is {}".format(config.action))
run_dir = os.path.join(g.DATA_DIR, g.DATASET_VER, g.RUN_NAME)
os.makedirs(run_dir, exist_ok=True)
if config.action == g.ACTION_WRANGLE_ONLY or config.action == g.ACTION_RUN_ALL:
logger.info("running data wrangling operations...")
# Step 0: read data needed by all worker threads
file_path = os.path.join(g.RAW_DATA_DIR, g.DATASET_VER, g.CCTLD_FILE_NAME)
ccTLD = pd.read_csv(file_path)
logger.info("read country code top level domains...")
logger.info(ccTLD.head())
# step 1, split the file into chunks
# we expect the file to be within the current project, soon this will be replaced
# with download from a dataset repo if not present so the file is downloaded one time
# and then available for use as long as the version number does not change (DATASET_VER)
src_dir = os.path.dirname(os.path.abspath(__file__))
file_path = os.path.join(src_dir, g.RAW_DATA_DIR, g.DATASET_VER, config.filename)
output_dir = os.path.join(src_dir, g.DATA_DIR, g.DATASET_VER, g.SPLITS_DIR)
p = Path(file_path)
if p.exists() is False:
logger.error("%s does not exist, existing %s", file_path, g.APP_NAME)
sys.exit()
else:
logger.info("%s found, going to split it into %sMB sized chunks now", file_path, config.splitsizemb)
os.makedirs(output_dir, exist_ok=True)
split_size = g.MB*int(config.splitsizemb)
# the split will create a malformed last line because it is size based and not line based
# but that is ok..we have millions of lines so a few do not matterHOURLY_UNIQUE_SRC_IP_COUNT_PER_LOW_TFIDF_QUERY
fs = FileSplit(file_path, split_size, output_dir)
fs.split()
logger.info("file split complete..moving to wrangling stage now")
file_list = [os.path.join(output_dir, f) for f in os.listdir(output_dir)
if os.path.isfile(os.path.join(output_dir, f))]
logger.info("file names for the splits are {}".format(file_list))
# step 2: wrangle data
dns_data, _, fqdn_stats, _, hourly_per_query_counts, _, _, _, _, _, hourly_unique_src_ip_counts = wrangle_data(file_list, ccTLD)
logger.info("done wrangling data...")
# step 3: get tfidf values for each domain so we can identify stop domains like stop words
logger.info("going to do tfidf on domain names to figure out stop domains now..")
fqdn_tfidf, fqdn_tfidf_subset = do_tfidf_transform_on_query_names()
# step 3.1, create file with per hour query count most non-informative domains (from our perspective of
# figuring out similarities between domain names)
low_tfidf_domains = fqdn_tfidf_subset['fqdn']
hourly_per_query_counts_low_tfidf = hourly_per_query_counts[hourly_per_query_counts['query'].isin(low_tfidf_domains)]
file_path = os.path.join(src_dir, g.DATA_DIR, g.DATASET_VER,
g.HOURLY_PER_QUERY_COUNT_LOW_TFIDF_TIMESERIES_FILE_NAME)
hourly_per_query_counts_low_tfidf.to_csv(file_path, index=False)
# step 3.2, create file with per hour unique src ip counts most non-informative domains
# (from our perspective of figuring out similarities between domain names)
hourly_unique_src_ip_counts_low_tfidf = hourly_unique_src_ip_counts[hourly_unique_src_ip_counts['query'].isin(low_tfidf_domains)]
file_path = os.path.join(src_dir, g.DATA_DIR, g.DATASET_VER,
g.HOURLY_UNIQUE_SRC_IP_COUNT_PER_LOW_TFIDF_QUERY)
hourly_unique_src_ip_counts_low_tfidf.to_csv(file_path, index=False)
# step 3.3, create file with per hour unique src ip counts for top 100 most frequently accessed domains
hourly_unique_src_ip_counts_for_most_freq = hourly_unique_src_ip_counts[hourly_unique_src_ip_counts['query'].isin(fqdn_stats.tail(g.N_FOR_FQDNS_W_LOWEST_TFIDF)['query'])]
file_path = os.path.join(src_dir, g.DATA_DIR, g.DATASET_VER,
g.HOURLY_UNIQUE_SRC_IP_COUNT_MOST_FREQ_FQDNS)
hourly_unique_src_ip_counts_for_most_freq.to_csv(file_path, index=False)
# going to do some post processing on dns data
# 1. remove the low tfidf domains i.e. treat them like stopwords in a sentence
# 2. shorten the domain names to only keep the most significant part of it
# 3. write to dnsdata file
logger.info("going to post process dns data from previous step to remove stop domain names")
dns_data = post_process_dns_data(dns_data, low_tfidf_domains, ccTLD)
file_path = os.path.join(g.DATA_DIR, g.DATASET_VER, g.WRANGLED_DATASET_FILE_NAME)
dns_data.to_csv(file_path, index=False)
logger.info("wrote the final dns dataset to {}".format(file_path))
if config.action == g.ACTION_ANALYZE_ONLY or config.action == g.ACTION_RUN_ALL:
logger.info("running analysis...")
if dns_data is None:
# read the dns dataset created as part of the analysis phase, either in this run
# or the previous one
file_path = os.path.join(g.DATA_DIR, g.DATASET_VER, g.WRANGLED_DATASET_FILE_NAME)
dns_data = pd.read_csv(file_path)
# we have the data, either from the previous step or reading from the file
logger.info(dns_data['query'].head())
# read each line from the dataframe, split it to convert it into an array
# because word2vec needs an array of arrays (sentences)..
# but before we do that we also need to typecast each
# individual domain name in the "sentence" to a string because some domain names like
# 169.254 make Python think this is a float..
# queries_as_sentences = [[q for q in str(queries).split() if q.startswith("www")] for queries in dns_data['query']]
queries_as_sentences = [str(queries).split() for queries in dns_data['query']]
# write this list of lists to a file, we would use this as input to an LSTM model
# to predict what domain name comes after a sequence of domains
file_path = os.path.join(g.DATA_DIR, g.DATASET_VER, g.FINAL_INPUT_TO_W2V_MODEL_FILE_NAME)
with open(file_path,"w") as f:
wr = csv.writer(f)
wr.writerows(queries_as_sentences)
# logger.info([len(q) for q in queries_as_sentences])
# run word2vec
# log all the word2vec config to a file for record purposes
file_path = os.path.join(g.DATA_DIR, g.DATASET_VER, g.RUN_NAME, g.W2V_PARAMS_FILE_NAME)
with open(file_path, "w") as w2v_params_file:
w2v_parms = { 'run_name': g.RUN_NAME,
'num_sentences': len(queries_as_sentences),
'embedding_size': g.W2V_EMBEDDING_SIZE,
'window_size': g.W2V_WINDOW,
'min_count': g.W2V_MIN_COUNT,
'negative': g.W2V_NEGATIVE_SAMPLING,
'max_vocab_size': g.W2V_MAX_VOCAB_SIZE,
'sample': g.W2V_SAMPLE,
'ns_exponent': g.W2V_NS_EXPONENT,
'num_workers': g.W2V_WORKERS,
'sg': g.W2V_USE_SG,
'epochs': g.WV_EPOCHS,
'seed': g.WV_SEED }
w2v_params_file.write(json.dumps(w2v_parms, indent=2))
model_dns = Word2Vec(sentences=queries_as_sentences, size=g.W2V_EMBEDDING_SIZE, window=g.W2V_WINDOW,
min_count=g.W2V_MIN_COUNT, workers=g.W2V_WORKERS, sg=g.W2V_USE_SG, iter=g.WV_EPOCHS,
negative = g.W2V_NEGATIVE_SAMPLING, max_vocab_size=g.W2V_MAX_VOCAB_SIZE,
sample = g.W2V_SAMPLE, ns_exponent = g.W2V_NS_EXPONENT,
seed=g.WV_SEED, compute_loss=True, callbacks=[EpochLogger()])
file_path = os.path.join(g.DATA_DIR, g.DATASET_VER, g.RUN_NAME,
g.DNS_DATASET_FILE_NAME.split('.')[0] + g.MODEL_FILE_SUFFIX)
logger.info("saving Dns2Vc model to {}".format(file_path))
model_dns.save(file_path)
logger.info("going to save dns vectors...")
save_dns_vectors_for_tensorboard(model_dns)
logger.info("going to run tests to predict similar domains...")
run_dns2vec_tests(model_dns)
logger.info("nothing more to do..")
def run_import_file(
account,
user,
password,
database,
warehouse,
schema,
schema_table,
file_path,
delimiter=",",
):
row_count = 0
db = Database(
account,
user,
password,
database,
warehouse,
schema,
)
try:
# Uppercase table
schema_table = schema_table.upper()
# File dir and name
path_parts = os.path.split(file_path)
file_dir = path_parts[0]
file_name = path_parts[1]
# Tablename underscored
table_name_text = file_name.replace('.', '_')
# Fileformat
try:
table_format = table_name_text + "_format"
create_format_sql = (
"create or replace file format " + table_format +
" type = 'CSV' field_delimiter = '" + delimiter
#+ "' skip_header = 1; "
+ "'; ")
logger.debug(create_format_sql)
db.execute(create_format_sql)
except:
logger.error('Failed create fileformat: ' + file_path)
# Stage
try:
table_stage = table_name_text + "_stage"
create_stage_sql = ("create or replace stage " + table_stage +
" file_format = " + table_format + ";")
logger.debug(create_stage_sql)
db.execute(create_stage_sql)
except:
logger.error('Failed create stage: ' + file_path)
# Split files
fs = FileSplit(file=file_path, splitsize=50000000, output_dir=file_dir)
fs.split()
os.remove(file_path)
# put
try:
files = file_path[:-4] + "*.csv"
put_sql = ("PUT file://" + files + " @" + table_stage +
" auto_compress=true;")
logger.debug(put_sql)
db.execute(put_sql)
except:
logger.error('Failed PUT: ' + file_path)
# copy
try:
copy_sql = ("COPY INTO " + schema_table + " FROM @" + table_stage +
" file_format = (format_name = " + table_format +
") on_error = 'CONTINUE';")
logger.debug(copy_sql)
sfqid = db.execute(copy_sql).sfqid
logger.debug("copy table success")
logger.debug('Snowflake copy query id: ' + sfqid)
sfqid = "'" + sfqid + "'"
except:
logger.error('Failed COPY: ' + file_path)
try:
qstring = 'SELECT * FROM TABLE(RESULT_SCAN({}))'
load_result = db.execute(qstring.format(sfqid)).fetchall()
for res in load_result:
logger.debug(res)
row_count = sum([row[3] for row in load_result])
if len([row[1]
for row in load_result if row[1] == 'LOAD_FAILED']) > 0:
logger.error('Load completed with errors')
except:
logger.error('Failed getting load results: ' + file_path)
# remove stage
drop_stage_sql = "DROP STAGE IF EXISTS " + table_stage
logger.debug(drop_stage_sql)
db.execute(drop_stage_sql)
logger.debug("stage deleted")
# remove fileformat
drop_file_format_sql = "DROP FILE FORMAT IF EXISTS " + table_format
logger.debug(drop_file_format_sql)
db.execute(drop_file_format_sql)
logger.debug("format deleted")
logger.debug(str(row_count) + " records imported")
return row_count
except:
logger.error("Failed importing file: " + file_path)
return row_count
from fsplit.filesplit import FileSplit fs = FileSplit(file='./wiki.json', splitsize=10240000, output_dir='../data') fs.split()
def main():
print("Wikipedia Wordlist Extractor")
xmlfile_path = args.n
pros = int(args.p)
listname = args.f[:-4] + "-wordlist.txt"
#################################################
# Creating directory for storing splits if such a
# directory does not already exists
#################################################
path = os.path.join(os.getcwd(), "wikisplits")
try:
os.mkdir(path)
except OSError:
print("Creation of the directory %s failed" % path)
else:
print("Wikisplits directory created")
#################################################################
# Splits up the file to facilitate data manipulation (size in MB)
#################################################################
print("Splitting file", listname, "...")
fs = FileSplit(file=xmlfile_path, splitsize=5000000, output_dir=path)
fs.split()
print("File", xmlfile_path, "was split in directory", path)
###################################################
# Proceeds to strip the files of characters, delete
# smaller words, and clean up empty lines
###################################################
# Removes all non-Alphanumeric Characters
print("\nRemoving non-alphanumeric characters & words smaller than 4...")
os.chdir(path)
directory = os.getcwd()
dirlist = sorted(os.listdir(directory))
pool = Pool(processes=pros)
for _ in tqdm(pool.imap(removal, dirlist), total=len(dirlist)):
pass
print(
"\nNon-Alphanumeric characters and words of size smaller than 4 removed."
)
########################################################
# Merges the lists back together, eliminating duplicates
# and then deletes the 'wikisplit' directory.
########################################################
print("\nMerging lists back")
worddict = {}
for file in sorted(os.listdir(directory)):
with open(file, 'r+', encoding="UTF-8") as f:
for line in tqdm(f):
if (len(line.strip()) == 0):
continue
worddict[line.strip()] = 1
fileresult = open(listname, 'w', encoding="UTF-8")
for word in tqdm(sorted(list(worddict.keys()))):
fileresult.write(word + '\n')
fileresult.close()
os.chdir('..')
shutil.move(os.path.join(path, listname),
os.path.join(os.getcwd(), "wikilists"))
print(
listname +
" has been created. It contains all the words from the wikipedia dump minus duplicates, and has also been sorted in ascending order."
)
try:
shutil.rmtree(path)
except Exception as e:
print('%s ' % e)
else:
print('\n%s was deleted' % path)
'''
Prerequisite :
https://pypi.org/project/filesplit/
PS : Applicable for converting bat file as well :)
'''
from fsplit.filesplit import FileSplit
fs = FileSplit(file=r"C:\Users\DHAVAL\Desktop\Old_resumes\really_big_file.txt",
splitsize=500,
output_dir=r"C:\Users\DHAVAL\Desktop\Old_resumes")
fs.split()
# pw = getpass()
# params['database']['password'] = pw
# pop_util = PopulationUtil(params['database'])
handler = MagController(params['mag_indexes'])
with open(params['mapping_path'], 'r') as handle:
apn_maz_mapping = json.load(handle)
sliced = False
if sliced:
st = os.stat(params['mag_path'])
split_size = 300000000
mag_dir = '/'.join(params['mag_path'].split('/')[0:-1])
fs = FileSplit(params['mag_path'], split_size, output_dir=mag_dir)
fs.split(include_header=True)
for i in range(1, (st.st_size % split_size) + 1):
params[
'mag_path'] = f"../../data/raw_travel_data/output_disaggTripList_{i}.csv"
plans = handler.plans_by_col(params['mag_path'],
params['mag_column_ids'])
population = handler.plans_to_population(plans)
# with open(f'../../data/processed_MAG_data/population_{i}.dill', 'wb+') as handle:
# dill.dump(population, handle)
# with open('../../data/processed_MAG_data/population.dill', 'rb') as handle:
# population: MagPopulation = dill.load(handle)
def split_csv(self):
self.__fs = FileSplit(file=".".join(
[self.__file_name, FILE_EXT]), splitsize=SPLIT_SIZE)
return self.__fs.split(include_header=True)
def splitFile(fileName):
fs = FileSplit(file=CONST_DOWN + fileName,
splitsize=CONST_BLOCK_SIZE * CONST_BYTES_PER_MB,
output_dir=(CONST_DOWN))
fs.split()
os.remove(CONST_DOWN + fileName)
from fsplit.filesplit import FileSplit
from pathlib import Path
import myconf
split_folder = myconf.split_folder
Path(split_folder).mkdir(parents=True, exist_ok=True)
FileSplit(file=myconf.file_path,
splitsize=myconf.number_of_lines_in_splitted_file,
output_dir=split_folder).split()
#!/usr/bin/env python # coding: utf-8 # In[1]: pip install filesplit # In[39]: from fsplit.filesplit import FileSplit f = FileSplit(file='C:/Users/Niteesha/Desktop/mendley/dataset.csv', splitsize=1848000) # In[40]: f.split() # In[41]: import hashlib # In[42]:
def split_file():
fs = FileSplit(file='C:\\Users\\Lakshman\\Downloads\\site_hits.tsv',
splitsize=1684670,
output_dir='C:\\Users\\Lakshman\\Downloads\\splitfiletest')
fs.split()
fs.split(include_header=True)