def test_fetch_twice_separated(runner, freezer):
"""
Here we want to make sure that the data deduplication of fetch is working all
right, that no additional file is added if fetch is called within the same minute.
"""
freezer.freeze(TEST_O_CLOCK)
result = runner.invoke(cli, ['-v', '-d', TEMP_FOLDER, 'fetch', FIRST_URL])
assert result.exit_code == 0
assert len(glob.glob(TEMP_FOLDER + '*.csv')) == 1
freezer.delta(minutes=30)
result2 = runner.invoke(cli, ['-v', '-d', TEMP_FOLDER, 'fetch', SECOND_URL])
assert result2.exit_code == 0
assert len(glob.glob(TEMP_FOLDER + '*.csv')) == 2
# There are 135 new datapoints in the second file, so 866 should be removed.
assert len(loadOne(glob.glob(TEMP_FOLDER + '*:30:00.csv')[0])) == 135
def test_fetch_twice_separated(runner, freezer):
"""
Here we want to make sure that the data deduplication of fetch is working all
right, that no additional file is added if fetch is called within the same minute.
"""
freezer.freeze(TEST_O_CLOCK)
result = runner.invoke(cli, ['-v', '-d', TEMP_FOLDER, 'fetch', FIRST_URL])
assert result.exit_code == 0
assert len(glob.glob(TEMP_FOLDER + '*.csv')) == 1
freezer.delta(minutes=30)
result2 = runner.invoke(cli,
['-v', '-d', TEMP_FOLDER, 'fetch', SECOND_URL])
assert result2.exit_code == 0
assert len(glob.glob(TEMP_FOLDER + '*.csv')) == 2
# There are 135 new datapoints in the second file, so 866 should be removed.
assert len(loadOne(glob.glob(TEMP_FOLDER + '*:30:00.csv')[0])) == 135
def test_data_folder_without_trailing_slash(runner, freezer):
"""
There were issues with fetch due to the data directory not being terminated
with a slash.
"""
with runner.isolated_filesystem():
try:
os.makedirs('./no_slash')
freezer.freeze(TEST_O_CLOCK)
result = runner.invoke(cli, ['-d', './no_slash', 'fetch', FIRST_URL])
assert result.exit_code == 0
freezer.delta(minutes=30)
result2 = runner.invoke(cli, ['-d', './no_slash', 'fetch', SECOND_URL])
assert result2.exit_code == 0
assert len(loadOne(glob.glob('./no_slash/*:30:00.csv')[0])) == 135
finally:
shutil.rmtree('./no_slash')
def test_data_folder_without_trailing_slash(runner, freezer):
"""
There were issues with fetch due to the data directory not being terminated
with a slash.
"""
with runner.isolated_filesystem():
try:
os.makedirs('./no_slash')
freezer.freeze(TEST_O_CLOCK)
result = runner.invoke(cli,
['-d', './no_slash', 'fetch', FIRST_URL])
assert result.exit_code == 0
freezer.delta(minutes=30)
result2 = runner.invoke(cli,
['-d', './no_slash', 'fetch', SECOND_URL])
assert result2.exit_code == 0
assert len(loadOne(glob.glob('./no_slash/*:30:00.csv')[0])) == 135
finally:
shutil.rmtree('./no_slash')
def fetch(config, url):
"""Fetches and stores metrics from Sensor at the URL given."""
new_path = os.path.join(
config.data_folder,
datetime.datetime.now().strftime('%Y-%m-%d_%H:%M:%S.csv'))
new_temp_path = new_path + 'temp'
if not url.startswith('http://'):
url = 'http://' + url
url += '/export.csv'
if config.verbose:
click.echo('Fetching data from ' + url + ' and saving it in ' +
new_temp_path)
try:
previous_path = sorted(glob.glob(config.data_folder + '/*.csv'))[-1]
except IndexError:
previous_path = None
try:
urllib.request.urlretrieve(url, new_temp_path)
except urllib.error.URLError as e:
click.echo('Failed to establish an HTTP connection.')
click.echo(e.reason)
sys.exit(1)
except urllib.error.HTTPError as e:
click.echo('Managed to connect but failed with HTTP Error code: ' +
e.code)
click.echo(e.reason)
sys.exit(2)
try:
new_rows = csvio.loadOne(new_temp_path)
if not new_rows[0][0] == "Device:":
click.echo('Managed to connect and fetch data from something, '
'but it was not a CSV from a Comet Web Sensor.')
click.echo((new_rows[0][0]))
sys.exit(3)
# Here we'll try to remove overlapping data points with the last file.
# It get's nasty due to time ajustments done by the sensor.
if previous_path is not None:
previous_rows = csvio.loadOne(previous_path)
data_start = data.get_first_data_point_index(previous_rows)
time_of_newest_data_in_previous = time.datetime_from_row(
previous_rows[data_start], 'second')
filtered_rows = []
for row in new_rows:
if data.not_data_point(row):
continue
time_of_row = time.datetime_from_row(row)
if time_of_newest_data_in_previous < time_of_row:
filtered_rows.append(row)
if not filtered_rows:
if config.verbose:
click.echo('No new rows found in fetched data.')
sys.exit(0)
else:
filtered_rows = new_rows
if config.verbose:
click.echo('Rewriting treated CSV to: ' + new_path)
csvio.writeRows(filtered_rows, new_path)
finally:
os.remove(new_temp_path)
def fetch(config, url):
"""Fetches and stores metrics from Sensor at the URL given."""
new_path = os.path.join(config.data_folder, datetime.datetime.now().strftime('%Y-%m-%d_%H:%M:%S.csv'))
new_temp_path = new_path + 'temp'
if not url.startswith('http://'):
url = 'http://' + url
url += '/export.csv'
if config.verbose:
click.echo('Fetching data from ' + url + ' and saving it in ' + new_temp_path)
try:
previous_path = sorted(glob.glob(config.data_folder + '/*.csv'))[-1]
except IndexError:
previous_path = None
try:
urllib.request.urlretrieve(url, new_temp_path)
except urllib.error.URLError as e:
click.echo('Failed to establish an HTTP connection.')
click.echo(e.reason)
sys.exit(1)
except urllib.error.HTTPError as e:
click.echo('Managed to connect but failed with HTTP Error code: ' + e.code)
click.echo(e.reason)
sys.exit(2)
try:
new_rows = csvio.loadOne(new_temp_path)
if not new_rows[0][0] == "Device:":
click.echo('Managed to connect and fetch data from something, '
'but it was not a CSV from a Comet Web Sensor.')
click.echo((new_rows[0][0]))
sys.exit(3)
# Here we'll try to remove overlapping data points with the last file.
# It get's nasty due to time ajustments done by the sensor.
if previous_path is not None:
previous_rows = csvio.loadOne(previous_path)
data_start = data.get_first_data_point_index(previous_rows)
time_of_newest_data_in_previous = time.datetime_from_row(previous_rows[data_start], 'second')
filtered_rows = []
for row in new_rows:
if data.not_data_point(row):
continue
time_of_row = time.datetime_from_row(row)
if time_of_newest_data_in_previous < time_of_row:
filtered_rows.append(row)
if not filtered_rows:
if config.verbose:
click.echo('No new rows found in fetched data.')
sys.exit(0)
else:
filtered_rows = new_rows
if config.verbose:
click.echo('Rewriting treated CSV to: ' + new_path)
csvio.writeRows(filtered_rows, new_path)
finally:
os.remove(new_temp_path)
