def test_with_default_tags(self):
from influxdb_client.extras import pd, np
now = pd.Timestamp('2020-04-05 00:00+00:00')
data_frame = pd.DataFrame(data={
'value': [1, 2],
't1': ['a1', 'a2'],
't3': ['c1', 'c2'],
},
index=[now + timedelta(hours=1), now + timedelta(hours=2)])
original_data = data_frame.copy()
points = data_frame_to_list_of_points(data_frame=data_frame,
point_settings=PointSettings(t2='every'),
data_frame_measurement_name='h2o',
data_frame_tag_columns={"t1", "t3"})
self.assertEqual(2, len(points))
self.assertEqual("h2o,t1=a1,t2=every,t3=c1 value=1i 1586048400000000000", points[0])
self.assertEqual("h2o,t1=a2,t2=every,t3=c2 value=2i 1586052000000000000", points[1])
# Check that the data frame hasn't been changed (an earlier version did change it)
self.assertEqual(True, (data_frame == original_data).all(axis = None), f'data changed; old:\n{original_data}\nnew:\n{data_frame}')
# Check that the default tags won't override actual column data.
# This is arguably incorrect behavior, but it's how it works currently.
points = data_frame_to_list_of_points(data_frame=data_frame,
point_settings=PointSettings(t1='every'),
data_frame_measurement_name='h2o',
data_frame_tag_columns={"t1", "t3"})
self.assertEqual(2, len(points))
self.assertEqual("h2o,t1=a1,t3=c1 value=1i 1586048400000000000", points[0])
self.assertEqual("h2o,t1=a2,t3=c2 value=2i 1586052000000000000", points[1])
self.assertEqual(True, (data_frame == original_data).all(axis = None), f'data changed; old:\n{original_data}\nnew:\n{data_frame}')
def test_escaping_measurement(self):
from influxdb_client.extras import pd, np
now = pd.Timestamp('2020-04-05 00:00+00:00')
data_frame = pd.DataFrame(data=[
["coyote_creek", np.int64(100.5)],
["coyote_creek", np.int64(200)],
],
index=[now + timedelta(hours=1), now + timedelta(hours=2)],
columns=["location", "water_level"])
points = data_frame_to_list_of_points(data_frame=data_frame,
point_settings=PointSettings(),
data_frame_measurement_name='measu rement',
data_frame_tag_columns={"tag"})
self.assertEqual(2, len(points))
self.assertEqual("measu\\ rement location=\"coyote_creek\",water_level=100i 1586048400000000000",
points[0])
self.assertEqual("measu\\ rement location=\"coyote_creek\",water_level=200i 1586052000000000000",
points[1])
points = data_frame_to_list_of_points(data_frame=data_frame,
point_settings=PointSettings(),
data_frame_measurement_name='measu\nrement2',
data_frame_tag_columns={"tag"})
self.assertEqual(2, len(points))
self.assertEqual("measu\\nrement2 location=\"coyote_creek\",water_level=100i 1586048400000000000",
points[0])
self.assertEqual("measu\\nrement2 location=\"coyote_creek\",water_level=200i 1586052000000000000",
points[1])
def test_write_tag_nan(self):
from influxdb_client.extras import pd, np
now = pd.Timestamp('2020-04-05 00:00+00:00')
data_frame = pd.DataFrame(
data=[["", 3.1955, 20.514305], ['', 5.7310, 23.328710],
[np.nan, 5.7310, 23.328710], ["tag", 3.138664, 20.755026]],
index=[
now, now + timedelta(minutes=30), now + timedelta(minutes=60),
now + timedelta(minutes=90)
],
columns=["tag", "actual_kw_price", "forecast_kw_price"])
points = data_frame_to_list_of_points(
data_frame=data_frame,
point_settings=PointSettings(),
data_frame_measurement_name='measurement',
data_frame_tag_columns={"tag"})
self.assertEqual(4, len(points))
self.assertEqual(
"measurement actual_kw_price=3.1955,forecast_kw_price=20.514305 1586044800000000000",
points[0])
self.assertEqual(
"measurement actual_kw_price=5.731,forecast_kw_price=23.32871 1586046600000000000",
points[1])
self.assertEqual(
"measurement actual_kw_price=5.731,forecast_kw_price=23.32871 1586048400000000000",
points[2])
self.assertEqual(
"measurement,tag=tag actual_kw_price=3.138664,forecast_kw_price=20.755026 1586050200000000000",
points[3])
def test_str_format_for_timestamp(self):
from influxdb_client.extras import pd
time_formats = [
('2018-10-26', 'test value1=10i,value2=20i 1540512000000000000'),
('2018-10-26 10:00',
'test value1=10i,value2=20i 1540548000000000000'),
('2018-10-26 10:00:00-05:00',
'test value1=10i,value2=20i 1540566000000000000'),
('2018-10-26T11:00:00+00:00',
'test value1=10i,value2=20i 1540551600000000000'),
('2018-10-26 12:00:00+00:00',
'test value1=10i,value2=20i 1540555200000000000'),
('2018-10-26T16:00:00-01:00',
'test value1=10i,value2=20i 1540573200000000000'),
]
for time_format in time_formats:
data_frame = pd.DataFrame(data={
'column_time': [time_format[0]],
'value1': [10],
'value2': [20],
},
index=['A'])
points = data_frame_to_list_of_points(
data_frame=data_frame,
data_frame_measurement_name="test",
data_frame_timestamp_column="column_time",
point_settings=PointSettings())
self.assertEqual(1, len(points))
self.assertEqual(time_format[1], points[0])
def test_tag_escaping_key_and_value(self):
from influxdb_client.extras import pd, np
now = pd.Timestamp('2020-04-05 00:00+00:00')
data_frame = pd.DataFrame(
data=[
["carriage\nreturn", "new\nline", "t\tab",
np.int64(2)],
],
index=[
now + timedelta(hours=1),
],
columns=["carriage\rreturn", "new\nline", "t\tab", "l\ne\rv\tel"])
points = data_frame_to_list_of_points(
data_frame=data_frame,
point_settings=PointSettings(),
data_frame_measurement_name='h\n2\ro\t_data',
data_frame_tag_columns={"new\nline", "carriage\rreturn", "t\tab"})
self.assertEqual(1, len(points))
self.assertEqual(
"h\\n2\\ro\\t_data,carriage\\rreturn=carriage\\nreturn,new\\nline=new\\nline,t\\tab=t\\tab l\\ne\\rv\\tel=2i 1586048400000000000",
points[0])
def test_serialize_strings_with_commas(self):
from influxdb_client.extras import pd
csv = StringIO("""sep=;
Date;Entry Type;Value;Currencs;Category;Person;Account;Counter Account;Group;Note;Recurring;
"01.10.2018";"Expense";"-1,00";"EUR";"Testcategory";"";"Testaccount";"";"";"This, works";"no";
"02.10.2018";"Expense";"-1,00";"EUR";"Testcategory";"";"Testaccount";"";"";"This , works not";"no";
""")
data_frame = pd.read_csv(csv,
sep=";",
skiprows=1,
decimal=",",
encoding="utf-8")
data_frame['Date'] = pd.to_datetime(data_frame['Date'],
format="%d.%m.%Y")
data_frame.set_index('Date', inplace=True)
points = data_frame_to_list_of_points(
data_frame=data_frame,
data_frame_measurement_name="bookings",
data_frame_tag_columns=[
'Entry Type', 'Category', 'Person', 'Account'
],
point_settings=PointSettings())
self.assertEqual(2, len(points))
self.assertEqual(
"bookings,Account=Testaccount,Category=Testcategory,Entry\\ Type=Expense Currencs=\"EUR\",Note=\"This, works\",Recurring=\"no\",Value=-1.0 1538352000000000000",
points[0])
self.assertEqual(
"bookings,Account=Testaccount,Category=Testcategory,Entry\\ Type=Expense Currencs=\"EUR\",Note=\"This , works not\",Recurring=\"no\",Value=-1.0 1538438400000000000",
points[1])
def test_escape_text_value(self):
from influxdb_client.extras import pd
now = pd.Timestamp('2020-04-05 00:00+00:00')
an_hour_ago = now - timedelta(hours=1)
test = [{
'a': an_hour_ago,
'b': 'hello world',
'c': 1,
'd': 'foo bar'
}, {
'a': now,
'b': 'goodbye cruel world',
'c': 2,
'd': 'bar foo'
}]
data_frame = pd.DataFrame(test)
data_frame = data_frame.set_index('a')
points = data_frame_to_list_of_points(
data_frame=data_frame,
point_settings=PointSettings(),
data_frame_measurement_name='test',
data_frame_tag_columns=['d'])
self.assertEqual(2, len(points))
self.assertEqual(
"test,d=foo\\ bar b=\"hello world\",c=1i 1586041200000000000",
points[0])
self.assertEqual(
"test,d=bar\\ foo b=\"goodbye cruel world\",c=2i 1586044800000000000",
points[1])
def test_write_nan(self):
from influxdb_client.extras import pd, np
now = pd.Timestamp('2020-04-05 00:00+00:00')
data_frame = pd.DataFrame(data=[
[3.1955, np.nan, 20.514305, np.nan],
[5.7310, np.nan, 23.328710, np.nan],
[np.nan, 3.138664, np.nan, 20.755026],
[5.7310, 5.139563, 23.328710, 19.791240],
[np.nan, np.nan, np.nan, np.nan],
],
index=[now, now + timedelta(minutes=30), now + timedelta(minutes=60),
now + timedelta(minutes=90), now + timedelta(minutes=120)],
columns=["actual_kw_price", "forecast_kw_price", "actual_general_use",
"forecast_general_use"])
points = data_frame_to_list_of_points(data_frame=data_frame, point_settings=PointSettings(),
data_frame_measurement_name='measurement')
self.assertEqual(4, len(points))
self.assertEqual("measurement actual_general_use=20.514305,actual_kw_price=3.1955 1586044800000000000",
points[0])
self.assertEqual("measurement actual_general_use=23.32871,actual_kw_price=5.731 1586046600000000000",
points[1])
self.assertEqual("measurement forecast_general_use=20.755026,forecast_kw_price=3.138664 1586048400000000000",
points[2])
self.assertEqual("measurement actual_general_use=23.32871,actual_kw_price=5.731,forecast_general_use=19.79124"
",forecast_kw_price=5.139563 1586050200000000000",
points[3])
def test_serialization_for_nan_in_columns_starting_with_digits(self):
from influxdb_client.extras import pd
from influxdb_client.extras import np
data_frame = pd.DataFrame(data={
'1value': [np.nan, 30.0, np.nan, 30.0, np.nan],
'2value': [30.0, np.nan, np.nan, np.nan, np.nan],
'3value': [30.0, 30.0, 30.0, np.nan, np.nan],
'avalue': [30.0, 30.0, 30.0, 30.0, 30.0]
},
index=pd.period_range('2020-05-24 10:00',
freq='H',
periods=5))
points = data_frame_to_list_of_points(
data_frame, PointSettings(), data_frame_measurement_name='test')
self.assertEqual(5, len(points))
self.assertEqual(
'test 2value=30.0,3value=30.0,avalue=30.0 1590314400000000000',
points[0])
self.assertEqual(
'test 1value=30.0,3value=30.0,avalue=30.0 1590318000000000000',
points[1])
self.assertEqual('test 3value=30.0,avalue=30.0 1590321600000000000',
points[2])
self.assertEqual('test 1value=30.0,avalue=30.0 1590325200000000000',
points[3])
self.assertEqual('test avalue=30.0 1590328800000000000', points[4])
data_frame = pd.DataFrame(data={
'1value': [np.nan],
'avalue': [30.0],
'bvalue': [30.0]
},
index=pd.period_range('2020-05-24 10:00',
freq='H',
periods=1))
points = data_frame_to_list_of_points(
data_frame, PointSettings(), data_frame_measurement_name='test')
self.assertEqual(1, len(points))
self.assertEqual('test avalue=30.0,bvalue=30.0 1590314400000000000',
points[0])
def test_convert_data_frame(self):
from influxdb_client.extras import pd, np
num_rows=1500000
col_data={
'time': np.arange(0, num_rows, 1, dtype=int),
'col1': np.random.choice(['test_a', 'test_b', 'test_c'], size=(num_rows,)),
}
for n in range(2, 9):
col_data[f'col{n}'] = np.random.rand(num_rows)
data_frame = pd.DataFrame(data=col_data)
print(data_frame)
start = time.time()
data_frame_to_list_of_points(data_frame, PointSettings(),
data_frame_measurement_name='h2o_feet',
data_frame_tag_columns=['location'])
print("Time elapsed: ", (time.time() - start))
def test_with_period_index(self):
from influxdb_client.extras import pd, np
now = pd.Timestamp('2020-04-05 00:00+00:00')
data_frame = pd.DataFrame(data={
'value': [1, 2],
},
index=pd.period_range(start='2020-04-05 01:00+00:00', freq='H', periods=2))
points = data_frame_to_list_of_points(data_frame=data_frame,
point_settings=PointSettings(),
data_frame_measurement_name='h2o')
self.assertEqual(2, len(points))
self.assertEqual("h2o value=1i 1586048400000000000", points[0])
self.assertEqual("h2o value=2i 1586052000000000000", points[1])
def test_tags_order(self):
from influxdb_client.extras import pd, np
now = pd.Timestamp('2020-04-05 00:00+00:00')
data_frame = pd.DataFrame(data=[["c", "a", "b", np.int64(2)], ],
index=[now + timedelta(hours=1), ],
columns=["c", "a", "b", "level"])
points = data_frame_to_list_of_points(data_frame=data_frame,
point_settings=PointSettings(),
data_frame_measurement_name='h2o',
data_frame_tag_columns={"c", "a", "b"})
self.assertEqual(1, len(points))
self.assertEqual("h2o,a=a,b=b,c=c level=2i 1586048400000000000", points[0])
def test_write_num_py_floats(self):
from influxdb_client.extras import pd, np
now = pd.Timestamp('2020-04-05 00:00+00:00')
for np_float_type in [
np.float, np.float16, np.float32, np.float64, np.float128
]:
data_frame = pd.DataFrame([15.5], index=[now],
columns=['level']).astype(np_float_type)
points = data_frame_to_list_of_points(
data_frame=data_frame,
data_frame_measurement_name='h2o',
point_settings=PointSettings())
self.assertEqual(1, len(points))
self.assertEqual("h2o level=15.5 1586044800000000000",
points[0],
msg=f'Current type: {np_float_type}')
def test_write_precision(self):
from influxdb_client.extras import pd
now = pd.Timestamp('2020-04-05 00:00+00:00')
precisions = [(WritePrecision.NS, 1586044800000000000),
(WritePrecision.US, 1586044800000000),
(WritePrecision.MS, 1586044800000),
(WritePrecision.S, 1586044800),
(None, 1586044800000000000)]
for precision in precisions:
data_frame = pd.DataFrame([15], index=[now], columns=['level'])
points = data_frame_to_list_of_points(
data_frame=data_frame,
data_frame_measurement_name='h2o',
point_settings=PointSettings(),
precision=precision[0])
self.assertEqual(1, len(points))
self.assertEqual(f"h2o level=15i {precision[1]}", points[0])
def test_without_tags_and_fields_with_nan(self):
from influxdb_client.extras import pd, np
df = pd.DataFrame({
'a': np.arange(0., 3.),
'b': [0., np.nan, 1.],
}).set_index(
pd.to_datetime(
['2021-01-01 0:00', '2021-01-01 0:01', '2021-01-01 0:02']))
points = data_frame_to_list_of_points(
data_frame=df,
data_frame_measurement_name="test",
point_settings=PointSettings())
self.assertEqual(3, len(points))
self.assertEqual("test a=0.0,b=0.0 1609459200000000000", points[0])
self.assertEqual("test a=1.0 1609459260000000000", points[1])
self.assertEqual("test a=2.0,b=1.0 1609459320000000000", points[2])
def test_use_timestamp_from_specified_column(self):
from influxdb_client.extras import pd
data_frame = pd.DataFrame(data={
'column_time': ['2020-04-05', '2020-05-05'],
'value1': [10, 20],
'value2': [30, 40],
},
index=['A', 'B'])
points = data_frame_to_list_of_points(
data_frame=data_frame,
data_frame_measurement_name="test",
data_frame_timestamp_column="column_time",
point_settings=PointSettings())
self.assertEqual(2, len(points))
self.assertEqual('test value1=10i,value2=30i 1586044800000000000',
points[0])
self.assertEqual('test value1=20i,value2=40i 1588636800000000000',
points[1])
def test_write_field_bool(self):
from influxdb_client.extras import pd, np
now = pd.Timestamp('2020-04-05 00:00+00:00')
data_frame = pd.DataFrame(data=[
[True],
[False],
],
index=[now, now + timedelta(minutes=30)],
columns=["status"])
points = data_frame_to_list_of_points(data_frame=data_frame,
point_settings=PointSettings(),
data_frame_measurement_name='measurement')
self.assertEqual(2, len(points))
self.assertEqual("measurement status=True 1586044800000000000",
points[0])
self.assertEqual("measurement status=False 1586046600000000000",
points[1])
def test_write_object_field_nan(self):
from influxdb_client.extras import pd, np
now = pd.Timestamp('2020-04-05 00:00+00:00')
data_frame = pd.DataFrame(data=[
["foo", 1],
[np.nan, 2],
],
index=[now, now + timedelta(minutes=30)],
columns=["obj", "val"])
points = data_frame_to_list_of_points(
data_frame=data_frame,
point_settings=PointSettings(),
data_frame_measurement_name='measurement')
self.assertEqual(2, len(points))
self.assertEqual("measurement obj=\"foo\",val=1i 1586044800000000000",
points[0])
self.assertEqual("measurement val=2i 1586046600000000000", points[1])
def test_specify_timezone(self):
from influxdb_client.extras import pd
data_frame = pd.DataFrame(data={
'column_time': ['2020-05-24 10:00', '2020-05-24 01:00'],
'value1': [10, 20],
'value2': [30, 40],
},
index=['A', 'B'])
points = data_frame_to_list_of_points(
data_frame=data_frame,
data_frame_measurement_name="test",
data_frame_timestamp_column="column_time",
data_frame_timestamp_timezone="Europe/Berlin",
point_settings=PointSettings())
self.assertEqual(2, len(points))
self.assertEqual('test value1=10i,value2=30i 1590307200000000000',
points[0])
self.assertEqual('test value1=20i,value2=40i 1590274800000000000',
points[1])
def ingest_dataframe(df, measurement_name, tag_columns):
"""Write data"""
point_settings = PointSettings()
point_settings.add_default_tag("units", "Wh")
point_settings.add_default_tag("source", "enphase")
points = data_frame_to_list_of_points(
data_frame=df,
point_settings=point_settings,
data_frame_measurement_name=measurement_name,
data_frame_tag_columns=tag_columns)
client = InfluxDBClient(url=url, token=token, org=org)
write_api = client.write_api()
# line protocol: measurementName,tagKey=tagValue fieldKey="fieldValue" timestamp
# write_api.write(bucket=bucket, org=org, record=df,
# data_frame_measurement_name=measurement_name,
# data_frame_tag_columns=tag_columns)
write_api.write(bucket=bucket, org=org, record=points)
write_api.close()
client.close()
def test_specify_timezone_period_time_index(self):
from influxdb_client.extras import pd
data_frame = pd.DataFrame(data={
'value1': [10, 20],
'value2': [30, 40],
},
index=pd.period_range(
start='2020-05-24 10:00',
freq='H',
periods=2))
print(data_frame.to_string())
points = data_frame_to_list_of_points(
data_frame=data_frame,
data_frame_measurement_name="test",
data_frame_timestamp_timezone="Europe/Berlin",
point_settings=PointSettings())
self.assertEqual(2, len(points))
self.assertEqual('test value1=10i,value2=30i 1590307200000000000',
points[0])
self.assertEqual('test value1=20i,value2=40i 1590310800000000000',
points[1])
