def test_deduplicate_annotations(self):
"""Test removing duplicated annotations."""
store = FileSystemDatastore(STORE_DIR)
ds = store.create_dataset(
columns=[
DatasetColumn(identifier=0, name='A'),
DatasetColumn(identifier=1, name='B')
],
rows=[DatasetRow(identifier=0, values=['a', 'b'])],
annotations=DatasetMetadata(
cells=[
DatasetAnnotation(column_id=0, row_id=0, key='X', value=1),
DatasetAnnotation(column_id=0, row_id=0, key='X', value=2),
DatasetAnnotation(column_id=1, row_id=0, key='X', value=3),
DatasetAnnotation(column_id=1, row_id=1, key='X', value=3),
DatasetAnnotation(column_id=0, row_id=0, key='Y', value=1),
DatasetAnnotation(column_id=0, row_id=0, key='X', value=1),
DatasetAnnotation(column_id=0, row_id=0, key='X', value=2),
DatasetAnnotation(column_id=1, row_id=0, key='X', value=3),
DatasetAnnotation(column_id=1, row_id=1, key='X', value=3),
],
columns=[
DatasetAnnotation(column_id=0, key='A', value='x'),
DatasetAnnotation(column_id=1, key='A', value='x'),
DatasetAnnotation(column_id=0, key='A', value='x'),
DatasetAnnotation(column_id=1, key='A', value='x'),
DatasetAnnotation(column_id=0, key='A', value='x'),
DatasetAnnotation(column_id=1, key='A', value='x'),
DatasetAnnotation(column_id=0, key='A', value='x'),
DatasetAnnotation(column_id=1, key='A', value='x')
],
rows=[
DatasetAnnotation(row_id=0, key='E', value=100),
DatasetAnnotation(row_id=0, key='E', value=100)
]
)
)
ds = store.get_dataset(ds.identifier)
self.assertEqual(len(ds.annotations.cells), 4)
self.assertEqual(len(ds.annotations.columns), 2)
self.assertEqual(len(ds.annotations.rows), 1)
annos = ds.annotations.for_cell(column_id=0, row_id=0)
self.assertEqual(len(annos), 3)
self.assertTrue(1 in [a.value for a in annos])
self.assertTrue(2 in [a.value for a in annos])
self.assertFalse(3 in [a.value for a in annos])
self.assertEqual(len(ds.annotations.find_all(values=annos, key='X')), 2)
with self.assertRaises(ValueError):
ds.annotations.find_one(values=annos, key='X')
self.assertEqual(len(ds.annotations.for_column(column_id=0)), 1)
self.assertEqual(len(ds.annotations.for_row(row_id=0)), 1)
annotations = ds.annotations.filter(columns=[1])
self.assertEqual(len(annotations.cells), 1)
self.assertEqual(len(annotations.columns), 1)
self.assertEqual(len(annotations.rows), 1)
def test_query_annotations(self):
"""Test retrieving annotations via the datastore."""
store = FileSystemDatastore(STORE_DIR)
ds = store.create_dataset(
columns=[
DatasetColumn(identifier=0, name='A'),
DatasetColumn(identifier=1, name='B')
],
rows=[DatasetRow(identifier=0, values=['a', 'b'])],
properties=EXAMPLE_PROPERTIES
)
properties = store.get_properties(ds.identifier)
self.assertEqual(len(properties["columns"]), 2)
def test_unique_name(self):
"""Test method that computes unique column names."""
ds = DatasetDescriptor(identifier='0',
columns=[
DatasetColumn(identifier=0, name='ABC'),
DatasetColumn(identifier=1, name='A'),
DatasetColumn(identifier=2, name='ABC_1'),
DatasetColumn(identifier=3, name='DEF'),
DatasetColumn(identifier=4, name='xyz'),
])
self.assertEqual(ds.get_unique_name('Age'), 'Age')
self.assertEqual(ds.get_unique_name('XYZ'), 'XYZ_1')
self.assertEqual(ds.get_unique_name('xyz'), 'xyz_1')
self.assertEqual(ds.get_unique_name('ABC'), 'ABC_2')
def from_file(descriptor_file, data_file, annotations=None):
"""Read dataset descriptor from file and return a new instance of the
dataset handle.
Parameters
----------
descriptor_file: string
Path to the file containing the dataset descriptor
data_file: string
Path to the file that contains the dataset rows.
annotations: vizier.datastore.annotation.dataset.DatasetMetadata, optional
Annotations for dataset components
Returns
-------
vizier.datastore.fs.dataset.FileSystemDatasetHandle
"""
with open(descriptor_file, 'r') as f:
doc = json.loads(f.read())
return FileSystemDatasetHandle(identifier=doc[KEY_IDENTIFIER],
columns=[
DatasetColumn(
identifier=col[KEY_COLUMN_ID],
name=col[KEY_COLUMN_NAME],
data_type=col[KEY_COLUMN_TYPE])
for col in doc[KEY_COLUMNS]
],
data_file=data_file,
row_count=doc[KEY_ROWCOUNT],
max_row_id=doc[KEY_MAXROWID],
annotations=annotations)
def from_dict(obj):
"""Create the descriptor from a dictionary serialization.
Parameters
----------
obj: dict
Dictionary serialization for dataset descriptor as returned by the
server.
Returns
-------
vizier.api.client.resources.dataset.DatasetDescriptor
"""
return DatasetDescriptor(
identifier=obj[labels.ID],
name=obj[labels.NAME],
columns=[
DatasetColumn(
identifier=col[labels.ID],
name=col[labels.NAME],
data_type=col[labels.DATATYPE]
) for col in obj['columns']
],
links=deserialize.HATEOAS(links=obj[labels.LINKS])
)
def insert_column(self,
name: str,
data_type: str = "varchar",
position: Optional[int] = None
) -> DatasetColumn:
"""Add a new column to the dataset schema.
Parameters
----------
name: string
Name of the new column
position: int, optional
Position in the dataset schema where new column is inserted. If
None, the column is appended to the list of dataset columns.
Returns
DatasetColumn
"""
column = DatasetColumn(name=name, data_type = data_type)
self.columns = list(self.columns)
if not position is None:
self.columns.insert(position, column)
# Add a null value to each row for the new column
for row in self.rows:
row.values.insert(position, None)
else:
self.columns.append(column)
# Add a null value to each row for the new column
for row in self.rows:
row.values.append(None)
return column
def filter_columns(self, identifier: str, columns: List[int],
names: List[str],
datastore: Datastore) -> VizualApiResult:
"""Dataset projection operator. Returns a copy of the dataset with the
given identifier that contains only those columns listed in columns.
The list of names contains optional new names for the filtered columns.
A value of None in names indicates that the name of the corresponding
column is not changed.
Raises ValueError if no dataset with given identifier exists or if any
of the filter columns are unknown.
Parameters
----------
identifier: string
Unique dataset identifier
columns: list(int)
List of column identifier for columns in the result.
names: list(string)
Optional new names for filtered columns.
datastore : vizier.datastore.fs.base.FileSystemDatastore
Datastore to retireve and update datasets
Returns
-------
vizier.engine.packages.vizual.api.VizualApiResult
"""
# Get dataset. Raise exception if dataset is unknown
dataset = datastore.get_dataset(identifier)
if dataset is None:
raise ValueError('unknown dataset \'' + identifier + '\'')
# The schema of the new dataset only contains the columns in the given
# list. Keep track of their index positions to filter values.
schema = list()
val_filter = list()
for i in range(len(columns)):
col_idx = dataset.get_index(columns[i])
if col_idx is None:
raise ValueError('unknown column identifier \'' +
str(columns[i]) + '\'')
col = dataset.columns[col_idx]
if not names[i] is None:
schema.append(
DatasetColumn(identifier=col.identifier,
name=names[i],
data_type=col.data_type))
else:
schema.append(col)
val_filter.append(col_idx)
# Create a list of projected rows
rows = list()
for row in dataset.fetch_rows():
values = list()
for v_idx in val_filter:
values.append(row.values[v_idx])
rows.append(DatasetRow(identifier=row.identifier, values=values))
# Store updated dataset to get new identifier
ds = datastore.create_dataset(columns=schema, rows=rows, properties={})
return VizualApiResult(ds)
def test_query_annotations(self):
"""Test retrieving annotations via the datastore."""
store = FileSystemDatastore(STORE_DIR)
ds = store.create_dataset(
columns=[
DatasetColumn(identifier=0, name='A'),
DatasetColumn(identifier=1, name='B')
],
rows=[DatasetRow(identifier=0, values=['a', 'b'])],
annotations=DatasetMetadata(
cells=[
DatasetAnnotation(column_id=0, row_id=0, key='X', value=1),
DatasetAnnotation(column_id=0, row_id=0, key='X', value=2),
DatasetAnnotation(column_id=1, row_id=0, key='X', value=3),
DatasetAnnotation(column_id=0, row_id=0, key='Y', value=1)
],
columns=[
DatasetAnnotation(column_id=0, key='A', value='x'),
DatasetAnnotation(column_id=1, key='A', value='x')
],
rows=[
DatasetAnnotation(row_id=0, key='E', value=100)
]
)
)
annos = store.get_annotations(ds.identifier, column_id=1)
self.assertEqual(len(annos.columns), 1)
self.assertEqual(len(annos.rows), 0)
self.assertEqual(len(annos.cells), 0)
annos = store.get_annotations(ds.identifier, column_id=0)
self.assertEqual(len(annos.columns), 1)
self.assertEqual(len(annos.rows), 0)
self.assertEqual(len(annos.cells), 0)
annos = store.get_annotations(ds.identifier, row_id=0)
self.assertEqual(len(annos.columns), 0)
self.assertEqual(len(annos.rows), 1)
self.assertEqual(len(annos.cells), 0)
annos = store.get_annotations(ds.identifier, column_id=1, row_id=0)
self.assertEqual(len(annos.columns), 0)
self.assertEqual(len(annos.rows), 0)
self.assertEqual(len(annos.cells), 1)
annos = store.get_annotations(ds.identifier, column_id=0, row_id=0)
self.assertEqual(len(annos.columns), 0)
self.assertEqual(len(annos.rows), 0)
self.assertEqual(len(annos.cells), 3)
def test_load_with_dataset_delete(self):
"""Test loading workflows where each module creates a new dataset and
deletes the previous dataset (except for the first module).
"""
base_path = os.path.join(os.path.abspath(REPO_DIR), 'ABC')
os.makedirs(base_path)
vt = OSViztrailHandle.create_viztrail(identifier='ABC',
properties={},
base_path=base_path)
branch = vt.get_default_branch()
# Append ten modules
for i in range(5):
ts = get_current_time()
deleted_datasets = list()
if i > 0:
deleted_datasets.append('DS' + str(i - 1))
command = python_cell(source='print ' + str(i) + '+' + str(i))
module = OSModuleHandle.create_module(
command=command,
external_form='print ' + str(i) + '+' + str(i),
state=MODULE_SUCCESS,
outputs=ModuleOutputs(stdout=[TextOutput(str(i + i))]),
provenance=ModuleProvenance(write={
'DS' + str(i):
DatasetDescriptor(
identifier=str(i),
name='DS' + str(i),
columns=[
DatasetColumn(identifier=j, name=str(j))
for j in range(i)
],
)
},
delete=deleted_datasets),
timestamp=ModuleTimestamp(created_at=ts,
started_at=ts,
finished_at=ts),
module_folder=vt.modules_folder,
object_store=vt.object_store)
if not branch.head is None:
modules = branch.head.modules + [module]
else:
modules = [module]
branch.append_workflow(modules=modules,
action=ACTION_INSERT,
command=command)
vt = OSViztrailHandle.load_viztrail(base_path)
workflow = vt.get_default_branch().get_head()
self.assertEqual(len(workflow.modules), 5)
datasets = {}
for i in range(5):
module = workflow.modules[i]
datasets = module.provenance.get_database_state(datasets)
self.assertEqual(len(datasets), 1)
key = 'DS' + str(i)
self.assertTrue(key in datasets)
self.assertEqual(len(datasets[key].columns), i)
def load_dataset(
self,
f_handle: FileHandle,
proposed_schema: List[Tuple[str,
str]] = []) -> FileSystemDatasetHandle:
"""Create a new dataset from a given file.
Raises ValueError if the given file could not be loaded as a dataset.
Parameters
----------
f_handle : vizier.filestore.base.FileHandle
Handle for an uploaded file
Returns
-------
vizier.datastore.fs.dataset.FileSystemDatasetHandle
"""
# The file handle might be None in which case an exception is raised
if f_handle is None:
raise ValueError('unknown file')
# Expects a file in a supported tabular data format.
if not f_handle.is_tabular:
raise ValueError('cannot create dataset from file \'' +
f_handle.name + '\'')
# Open the file as a csv file. Expects that the first row contains the
# column names. Read dataset schema and dataset rows into two separate
# lists.
columns: List[DatasetColumn] = []
rows: List[DatasetRow] = []
with f_handle.open() as csvfile:
reader = csv.reader(csvfile, delimiter=f_handle.delimiter)
for col_name in next(reader):
columns.append(
DatasetColumn(identifier=len(columns),
name=col_name.strip()))
for row in reader:
values = [cast(v.strip()) for v in row]
rows.append(
DatasetRow(identifier=str(len(rows)), values=values))
# Get unique identifier and create subfolder for the new dataset
identifier = get_unique_identifier()
dataset_dir = self.get_dataset_dir(identifier)
os.makedirs(dataset_dir)
# Write rows to data file
data_file = os.path.join(dataset_dir, DATA_FILE)
DefaultJsonDatasetReader(data_file).write(rows)
# Create dataset an write descriptor to file
dataset = FileSystemDatasetHandle(identifier=identifier,
columns=columns,
data_file=data_file,
row_count=len(rows),
max_row_id=len(rows) - 1)
dataset.to_file(
descriptor_file=os.path.join(dataset_dir, DESCRIPTOR_FILE))
return dataset
def create_dataset(self, name, dataset, backend_options=[]):
"""Create a new dataset with given name.
Raises ValueError if a dataset with given name already exist.
Parameters
----------
name : string
Unique dataset name
dataset : vizier.datastore.client.DatasetClient
Dataset object
Returns
-------
vizier.datastore.client.DatasetClient
"""
# Raise an exception if a dataset with the given name already exists or
# if the name is not valid
if self.has_dataset_identifier(name):
# Record access to the datasets
self.read.add(name.lower())
raise ValueError('dataset \'' + name + '\' already exists')
if not is_valid_name(name):
raise ValueError('invalid dataset name \'' + name + '\'')
# Create list of columns for new dataset. Ensure that every column has
# a positive identifier
columns = list()
if len(dataset.columns) > 0:
column_counter = max(
max([col.identifier for col in dataset.columns]) + 1, 0)
for col in dataset.columns:
if col.identifier < 0:
col.identifier = column_counter
column_counter += 1
columns.append(
DatasetColumn(identifier=col.identifier,
name=col.name,
data_type=col.data_type))
rows = dataset.rows
if len(rows) > 0:
# Ensure that all rows have positive identifier
row_counter = max(max([row.identifier for row in rows]) + 1, 0)
for row in rows:
if row.identifier < 0:
row.identifier = row_counter
row_counter += 1
# Write dataset to datastore and add new dataset to context
ds = self.datastore.create_dataset(columns=columns,
rows=rows,
annotations=dataset.annotations,
human_readable_name=name.upper(),
backend_options=backend_options)
self.set_dataset_identifier(name, ds.identifier)
self.descriptors[ds.identifier] = ds
return DatasetClient(dataset=self.datastore.get_dataset(ds.identifier))
def test_properties(self):
"""Test loading a dataset from file."""
store = FileSystemDatastore(STORE_DIR)
ds = store.create_dataset(
columns=[
DatasetColumn(identifier=0, name='A'),
DatasetColumn(identifier=1, name='B')
],
rows=[DatasetRow(identifier=0, values=[1, 2])],
properties=EXAMPLE_PROPERTIES
)
ds = store.get_dataset(ds.identifier)
column_props = ds.properties['columns']
self.assertEqual(len(column_props), 2)
self.assertTrue('A' in [prop['name'] for prop in column_props])
# Reload datastore
store = FileSystemDatastore(STORE_DIR)
ds = store.get_dataset(ds.identifier)
column_props = ds.properties['columns']
self.assertEqual(len(column_props), 2)
def test_create_dataset(self):
"""Test loading a dataset from file."""
store = FileSystemDatastore(STORE_DIR)
ds = store.create_dataset(
columns=[
DatasetColumn(identifier=0, name='A'),
DatasetColumn(identifier=1, name='B')
],
rows=[DatasetRow(identifier=0, values=['a', 'b'])]
)
ds = store.get_dataset(ds.identifier)
column_ids = [col.identifier for col in ds.columns]
self.assertEqual(len(ds.columns), 2)
for id in [0, 1]:
self.assertTrue(id in column_ids)
column_names = [col.name for col in ds.columns]
for name in ['A', 'B']:
self.assertTrue(name in column_names)
rows = ds.fetch_rows()
self.assertEqual(len(rows), 1)
self.assertEqual(rows[0].values, ['a', 'b'])
self.assertEqual(len(ds.annotations.cells), 0)
self.assertEqual(len(ds.annotations.columns), 0)
self.assertEqual(len(ds.annotations.rows), 0)
# Reload the datastore
store = FileSystemDatastore(STORE_DIR)
ds = store.get_dataset(ds.identifier)
column_ids = [col.identifier for col in ds.columns]
self.assertEqual(len(ds.columns), 2)
for id in [0, 1]:
self.assertTrue(id in column_ids)
column_names = [col.name for col in ds.columns]
for name in ['A', 'B']:
self.assertTrue(name in column_names)
rows = ds.fetch_rows()
self.assertEqual(len(rows), 1)
self.assertEqual(rows[0].values, ['a', 'b'])
self.assertEqual(len(ds.annotations.cells), 0)
self.assertEqual(len(ds.annotations.columns), 0)
self.assertEqual(len(ds.annotations.rows), 0)
def test_validate_dataset(self):
"""Test the validate dataset function."""
columns = []
rows = []
# Empty dataset
max_col_id, max_row_id = validate_dataset(columns, rows)
self.assertEqual(max_col_id, -1)
self.assertEqual(max_row_id, -1)
max_col_id, max_row_id = validate_dataset(
columns=columns,
rows=rows
)
self.assertEqual(max_col_id, -1)
self.assertEqual(max_row_id, -1)
# Valid set of columns and rows
columns = [DatasetColumn(0, 'A'), DatasetColumn(10, 'B')]
rows = [DatasetRow(0, [1, 2]), DatasetRow(4, [None, 2]), DatasetRow(2, [0, 0])]
max_col_id, max_row_id = validate_dataset(columns, rows)
self.assertEqual(max_col_id, 10)
self.assertEqual(max_row_id, 4)
max_col_id, max_row_id = validate_dataset(
columns=columns,
rows=rows
)
self.assertEqual(max_col_id, 10)
self.assertEqual(max_row_id, 4)
# Column errors
with self.assertRaises(ValueError):
validate_dataset(columns + [DatasetColumn()], [])
with self.assertRaises(ValueError):
validate_dataset(columns + [DatasetColumn(10, 'C')], [])
# Row errors
with self.assertRaises(ValueError):
validate_dataset(columns, rows + [DatasetRow(1000, [0, 1, 3])])
with self.assertRaises(ValueError):
validate_dataset(columns, rows + [DatasetRow(-1, [1, 3])])
with self.assertRaises(ValueError):
validate_dataset(columns, rows + [DatasetRow(0, [1, 3])])
def dataset_column_index(self):
"""Test the column by id index of the dataset handle."""
self.setup_fileserver()
ds = self.db.load_dataset(self.fileserver.upload_file(CSV_FILE))
# Ensure that the project data has three columns and two rows
self.assertEqual(ds.column_by_id(0).name.upper(), 'NAME')
self.assertEqual(ds.column_by_id(1).name.upper(), 'AGE')
self.assertEqual(ds.column_by_id(2).name.upper(), 'SALARY')
with self.assertRaises(ValueError):
ds.column_by_id(5)
ds.columns.append(DatasetColumn(identifier=5, name='NEWNAME'))
self.assertEqual(ds.column_by_id(5).name.upper(), 'NEWNAME')
with self.assertRaises(ValueError):
ds.column_by_id(4)
def rename_column(self, identifier: str, column_id: int, name: str,
datastore: Datastore) -> VizualApiResult:
"""Rename column in a given dataset.
Raises ValueError if no dataset with given identifier exists, if the
specified column is unknown, or if the given column name is invalid.
Parameters
----------
identifier: string
Unique dataset identifier
column_id: int
Unique column identifier
name: string
New column name
datastore : vizier.datastore.fs.base.FileSystemDatastore
Datastore to retireve and update datasets
Returns
-------
vizier.engine.packages.vizual.api.VizualApiResult
"""
# Raise ValueError if given colum name is invalid
if not is_valid_name(name):
raise ValueError('invalid column name \'' + name + '\'')
# Get dataset. Raise exception if dataset is unknown
dataset = datastore.get_dataset(identifier)
if dataset is None:
raise ValueError('unknown dataset \'' + identifier + '\'')
# Get the specified column that is to be renamed and set the column name
# to the new name
col_idx = dataset.get_index(column_id)
if col_idx is None:
raise ValueError('unknown column identifier \'' + str(column_id) +
'\'')
# Nothing needs to be changed if name does not differ from column name
if dataset.columns[col_idx].name.lower() != name.lower():
columns = list(dataset.columns)
col = columns[col_idx]
columns[col_idx] = DatasetColumn(identifier=col.identifier,
name=name,
data_type=col.data_type)
# Store updated dataset to get new identifier
ds = datastore.create_dataset(columns=columns,
rows=dataset.fetch_rows(),
properties={})
return VizualApiResult(ds)
else:
return VizualApiResult(dataset)
def create_dataset(self, name, dataset, backend_options=[]):
"""Create a new dataset with given name.
Raises ValueError if a dataset with given name already exist.
Parameters
----------
name : string
Unique dataset name
dataset : vizier.datastore.client.DatasetClient
Dataset object
Returns
-------
vizier.datastore.client.DatasetClient
"""
# Raise an exception if a dataset with the given name already exists or
# if the name is not valid
if name.lower() in self.datasets:
# Record access to the datasets
raise ValueError('dataset \'' + name + '\' already exists')
if not is_valid_name(name):
raise ValueError('invalid dataset name \'' + name + '\'')
# Create list of columns for new dataset. Ensure that every column has
# a positive identifier
columns = list()
if len(dataset.columns) > 0:
column_counter = max(
max([col.identifier for col in dataset.columns]) + 1, 0)
for col in dataset.columns:
if col.identifier < 0:
col.identifier = column_counter
column_counter += 1
columns.append(
DatasetColumn(identifier=col.identifier,
name=col.name,
data_type=col.data_type))
rows = dataset.rows
# Write dataset to datastore and add new dataset to context
ds = self.datastore.create_dataset(columns=columns,
rows=rows,
properties=dataset.properties,
human_readable_name=name,
backend_options=backend_options)
self.datasets[name.lower()] = ds
self.write.add(name.lower())
return DatasetClient(dataset=self.datastore.get_dataset(ds.identifier),
client=self,
existing_name=name.lower())
def insert_column(self, identifier: str, position: int, name: str,
datastore: Datastore) -> VizualApiResult:
"""Insert column with given name at given position in dataset.
Raises ValueError if no dataset with given identifier exists, if the
specified column position is outside of the current schema bounds, or if
the column name is invalid.
Parameters
----------
identifier: string
Unique dataset identifier
position: int
Index position at which the column will be inserted
name: string
New column name
datastore : vizier.datastore.fs.base.FileSystemDatastore
Datastore to retireve and update datasets
Returns
-------
vizier.engine.packages.vizual.api.VizualApiResult
"""
# Raise ValueError if given colum name is invalid
if not name is None and not is_valid_name(name):
raise ValueError('invalid column name \'' + name + '\'')
# Get dataset. Raise exception if dataset is unknown
dataset = datastore.get_dataset(identifier)
if dataset is None:
raise ValueError('unknown dataset \'' + identifier + '\'')
# Make sure that position is a valid column index in the new dataset
if position < 0 or position > len(dataset.columns):
raise ValueError('invalid column index \'' + str(position) + '\'')
# Insert new column into dataset
columns = list(dataset.columns)
rows = dataset.fetch_rows()
columns.insert(
position,
DatasetColumn(identifier=dataset.max_column_id() + 1,
name=name if not name is None else ''))
# Add a null value to each row for the new column
for row in rows:
row.values.insert(position, None)
# Store updated dataset to get new identifier
ds = datastore.create_dataset(columns=columns,
rows=rows,
properties={})
return VizualApiResult(ds)
def DATASET_COLUMNS(obj):
"""Convert a list of dictionaries into a list of dataset columns.
Parameters
----------
obj: list
List of dataset columns in default serialization format
Returns
-------
list
"""
return [
DatasetColumn(identifier=col[labels.ID],
name=col[labels.NAME],
data_type=col[labels.DATATYPE]) for col in obj
]
def test_update_annotations(self):
"""Test updating annotations via the datastore."""
store = FileSystemDatastore(STORE_DIR)
ds = store.create_dataset(
columns=[
DatasetColumn(identifier=0, name='A'),
DatasetColumn(identifier=1, name='B')
],
rows=[DatasetRow(identifier=0, values=['a', 'b'])],
annotations=DatasetMetadata(
cells=[
DatasetAnnotation(column_id=0, row_id=0, key='X', value=1),
DatasetAnnotation(column_id=0, row_id=0, key='X', value=2),
DatasetAnnotation(column_id=1, row_id=0, key='X', value=3),
DatasetAnnotation(column_id=0, row_id=0, key='Y', value=1)
],
columns=[
DatasetAnnotation(column_id=0, key='A', value='x'),
DatasetAnnotation(column_id=1, key='A', value='x')
],
rows=[
DatasetAnnotation(row_id=0, key='E', value=100)
]
)
)
# INSERT row annotatins
store.update_annotation(
ds.identifier,
key='D',
row_id=0,
new_value=200
)
annos = store.get_annotations(ds.identifier, row_id=0)
self.assertEqual(len(annos.rows), 2)
for key in ['D', 'E']:
self.assertTrue(key in [a.key for a in annos.rows])
for val in [100, 200]:
self.assertTrue(val in [a.value for a in annos.rows])
# UPDATE column annotation
store.update_annotation(
ds.identifier,
key='A',
column_id=1,
old_value='x',
new_value='y'
)
annos = store.get_annotations(ds.identifier, column_id=1)
self.assertEqual(annos.columns[0].key, 'A')
self.assertEqual(annos.columns[0].value, 'y')
# DELETE cell annotation
store.update_annotation(
ds.identifier,
key='X',
column_id=0,
row_id=0,
old_value=2,
)
annos = store.get_annotations(ds.identifier, column_id=0, row_id=0)
self.assertEqual(len(annos.cells), 2)
for a in annos.cells:
self.assertNotEqual(a.value, 2)
result = store.update_annotation(
ds.identifier,
key='X',
column_id=1,
row_id=0,
old_value=3,
)
self.assertTrue(result)
annos = store.get_annotations(ds.identifier, column_id=1, row_id=0)
self.assertEqual(len(annos.cells), 0)
def load_module(identifier,
module_path,
prev_state=None,
object_store=None):
"""Load module from given object store.
Parameters
----------
identifier: string
Unique module identifier
module_path: string
Resource path for module object
prev_state: dict(string: vizier.datastore.dataset.DatasetDescriptor)
Dataset descriptors keyed by the user-provided name that exist in
the database state of the previous moudle (in sequence of occurrence
in the workflow)
object_store: vizier.core.io.base.ObjectStore, optional
Object store implementation to access and maintain resources
Returns
-------
vizier.viztrail.objectstore.module.OSModuleHandle
"""
# Make sure the object store is not None
if object_store is None:
object_store = DefaultObjectStore()
# Read object from store. This may raise a ValueError to indicate that
# the module does not exists (in a system error condtion). In this
# case we return a new module that is in error state.
try:
obj = object_store.read_object(object_path=module_path)
except ValueError:
return OSModuleHandle(
identifier=identifier,
command=ModuleCommand(package_id=UNKNOWN_ID,
command_id=UNKNOWN_ID),
external_form='fatal error: object not found',
module_path=module_path,
state=mstate.MODULE_ERROR,
object_store=object_store)
# Create module command
command = ModuleCommand(package_id=obj[KEY_COMMAND][KEY_PACKAGE_ID],
command_id=obj[KEY_COMMAND][KEY_COMMAND_ID],
arguments=obj[KEY_COMMAND][KEY_ARGUMENTS])
# Create module timestamps
created_at = to_datetime(obj[KEY_TIMESTAMP][KEY_CREATED_AT])
if KEY_STARTED_AT in obj[KEY_TIMESTAMP]:
started_at = to_datetime(obj[KEY_TIMESTAMP][KEY_STARTED_AT])
else:
started_at = None
if KEY_FINISHED_AT in obj[KEY_TIMESTAMP]:
finished_at = to_datetime(obj[KEY_TIMESTAMP][KEY_FINISHED_AT])
else:
finished_at = None
timestamp = ModuleTimestamp(created_at=created_at,
started_at=started_at,
finished_at=finished_at)
# Create module output streams.
outputs = ModuleOutputs(
stdout=get_output_stream(obj[KEY_OUTPUTS][KEY_STDOUT]),
stderr=get_output_stream(obj[KEY_OUTPUTS][KEY_STDERR]))
# Create module provenance information
read_prov = None
if KEY_PROVENANCE_READ in obj[KEY_PROVENANCE]:
read_prov = dict()
for ds in obj[KEY_PROVENANCE][KEY_PROVENANCE_READ]:
read_prov[ds[KEY_DATASET_NAME]] = ds[KEY_DATASET_ID]
write_prov = None
if KEY_PROVENANCE_WRITE in obj[KEY_PROVENANCE]:
write_prov = dict()
for ds in obj[KEY_PROVENANCE][KEY_PROVENANCE_WRITE]:
descriptor = DatasetDescriptor(
identifier=ds[KEY_DATASET_ID],
columns=[
DatasetColumn(identifier=col[KEY_COLUMN_ID],
name=col[KEY_COLUMN_NAME],
data_type=col[KEY_COLUMN_TYPE])
for col in ds[KEY_DATASET_COLUMNS]
],
row_count=ds[KEY_DATASET_ROWCOUNT])
write_prov[ds[KEY_DATASET_NAME]] = descriptor
delete_prov = None
if KEY_PROVENANCE_DELETE in obj[KEY_PROVENANCE]:
delete_prov = obj[KEY_PROVENANCE][KEY_PROVENANCE_DELETE]
res_prov = None
if KEY_PROVENANCE_RESOURCES in obj[KEY_PROVENANCE]:
res_prov = obj[KEY_PROVENANCE][KEY_PROVENANCE_RESOURCES]
charts_prov = None
if KEY_PROVENANCE_CHARTS in obj[KEY_PROVENANCE]:
charts_prov = [
ChartViewHandle.from_dict(c)
for c in obj[KEY_PROVENANCE][KEY_PROVENANCE_CHARTS]
]
provenance = ModuleProvenance(read=read_prov,
write=write_prov,
delete=delete_prov,
resources=res_prov,
charts=charts_prov)
# Create dictionary of dataset descriptors only if previous state is
# given and the module is in SUCCESS state. Otherwise, the database
# state is empty.
if obj[KEY_STATE] == mstate.MODULE_SUCCESS and not prev_state is None:
datasets = provenance.get_database_state(prev_state)
else:
datasets = dict()
# Return module handle
return OSModuleHandle(identifier=identifier,
command=command,
external_form=obj[KEY_EXTERNAL_FORM],
module_path=module_path,
state=obj[KEY_STATE],
timestamp=timestamp,
datasets=datasets,
outputs=outputs,
provenance=provenance,
object_store=object_store)
def load_module(
identifier: str,
module_path: str,
prev_state: Optional[Dict[str, ArtifactDescriptor]] = None,
object_store: ObjectStore = DefaultObjectStore()
) -> "OSModuleHandle":
"""Load module from given object store.
Parameters
----------
identifier: string
Unique module identifier
module_path: string
Resource path for module object
prev_state: dict(string: vizier.datastore.dataset.DatasetDescriptor)
Dataset descriptors keyed by the user-provided name that exist in
the database state of the previous moudle (in sequence of occurrence
in the workflow)
object_store: vizier.core.io.base.ObjectStore, optional
Object store implementation to access and maintain resources
Returns
-------
vizier.viztrail.objectstore.module.OSModuleHandle
"""
# Make sure the object store is not None
# Read object from store. This may raise a ValueError to indicate that
# the module does not exists (in a system error condtion). In this
# case we return a new module that is in error state.
try:
obj = cast(Dict[str, Any], object_store.read_object(object_path=module_path))
except ValueError:
return OSModuleHandle(
identifier=identifier,
command=ModuleCommand(
package_id=UNKNOWN_ID,
command_id=UNKNOWN_ID,
arguments=list(),
packages=None
),
external_form='fatal error: object not found',
module_path=module_path,
state=mstate.MODULE_ERROR,
object_store=object_store
)
# Create module command
command = ModuleCommand(
package_id=obj[KEY_COMMAND][KEY_PACKAGE_ID],
command_id=obj[KEY_COMMAND][KEY_COMMAND_ID],
arguments=obj[KEY_COMMAND][KEY_ARGUMENTS],
packages=None
)
# Create module timestamps
created_at = to_datetime(obj[KEY_TIMESTAMP][KEY_CREATED_AT])
if KEY_STARTED_AT in obj[KEY_TIMESTAMP]:
started_at: Optional[datetime] = to_datetime(obj[KEY_TIMESTAMP][KEY_STARTED_AT])
else:
started_at = None
if KEY_FINISHED_AT in obj[KEY_TIMESTAMP]:
finished_at: Optional[datetime] = to_datetime(obj[KEY_TIMESTAMP][KEY_FINISHED_AT])
else:
finished_at = None
timestamp = ModuleTimestamp(
created_at=created_at,
started_at=started_at,
finished_at=finished_at
)
# Create module output streams.
outputs = ModuleOutputs(
stdout=get_output_stream(obj[KEY_OUTPUTS][KEY_STDOUT]),
stderr=get_output_stream(obj[KEY_OUTPUTS][KEY_STDERR])
)
# Create module provenance information
read_prov = None
if KEY_PROVENANCE_READ in obj[KEY_PROVENANCE]:
read_prov = dict()
for ds in obj[KEY_PROVENANCE][KEY_PROVENANCE_READ]:
read_prov[ds[KEY_DATASET_NAME]] = ds[KEY_DATASET_ID]
write_prov = None
if KEY_PROVENANCE_WRITE in obj[KEY_PROVENANCE]:
write_prov = dict()
for ds in obj[KEY_PROVENANCE][KEY_PROVENANCE_WRITE]:
if KEY_DATAOBJECT_TYPE in ds:
descriptor = ArtifactDescriptor(
identifier=ds[KEY_DATAOBJECT_ID],
name=ds[KEY_DATAOBJECT_NAME],
artifact_type=ds[KEY_DATAOBJECT_TYPE])
else:
descriptor = DatasetDescriptor(
identifier=ds[KEY_DATASET_ID],
name=ds[KEY_DATASET_NAME],
columns=[
DatasetColumn(
identifier=col[KEY_COLUMN_ID],
name=col[KEY_COLUMN_NAME],
data_type=col[KEY_COLUMN_TYPE]
) for col in ds[KEY_DATASET_COLUMNS]
]
)
write_prov[ds[KEY_DATASET_NAME]] = descriptor
if KEY_PROVENANCE_DELETE in obj[KEY_PROVENANCE]:
delete_prov = set(obj[KEY_PROVENANCE][KEY_PROVENANCE_DELETE])
else:
delete_prov = set()
if KEY_PROVENANCE_RESOURCES in obj[KEY_PROVENANCE]:
res_prov = cast(Dict[str, Any], obj[KEY_PROVENANCE][KEY_PROVENANCE_RESOURCES])
else:
res_prov = dict()
if KEY_PROVENANCE_CHARTS in obj[KEY_PROVENANCE]:
charts_prov = [
(
c[0],
ChartViewHandle.from_dict(c[1]) # type: ignore[no-untyped-call]
) if isinstance(c, list) else
(
"Chart",
ChartViewHandle.from_dict(c)
)
for c in obj[KEY_PROVENANCE][KEY_PROVENANCE_CHARTS]
]
else:
charts_prov = list()
provenance = ModuleProvenance(
read=read_prov,
write=write_prov,
delete=delete_prov,
resources=res_prov,
charts=charts_prov
)
# Return module handle
return OSModuleHandle(
identifier=identifier,
command=command,
external_form=obj[KEY_EXTERNAL_FORM],
module_path=module_path,
state=obj[KEY_STATE],
timestamp=timestamp,
outputs=outputs,
provenance=provenance,
object_store=object_store,
)
from vizier.viztrail.module.output import ModuleOutputs, OutputObject, TextOutput
from vizier.viztrail.module.provenance import ModuleProvenance
from vizier.viztrail.module.timestamp import ModuleTimestamp
from vizier.engine.packages.plot.command import create_plot
from vizier.engine.packages.pycell.command import python_cell
MODULE_DIR = './.temp'
DATASETS = {
'DS1':
DatasetDescriptor(identifier='ID1'),
'DS2':
DatasetDescriptor(identifier='ID2',
columns=[
DatasetColumn(identifier=0,
name='ABC',
data_type='int'),
DatasetColumn(identifier=1,
name='xyz',
data_type='real')
],
row_count=100)
}
class TestOSModuleIO(unittest.TestCase):
def setUp(self):
"""Create an empty directory."""
if os.path.isdir(MODULE_DIR):
shutil.rmtree(MODULE_DIR)
os.makedirs(MODULE_DIR)
from atexit import register as at_exit
URLS = UrlFactory(base_url='http://localhost:5000/vizier-db/api/v1')
api = VizierApiClient(URLS)
PROJECT_ID = api.create_project({"name": "Test Client Datastore"}).identifier
at_exit(api.delete_project, PROJECT_ID)
# We're just doing some unit testing on the fields specific to DatastoreClient, so
# ignore complaints about instantiating an abstract class
store = DatastoreClient( # type: ignore[abstract]
urls=DatastoreClientUrlFactory(urls=URLS, project_id=PROJECT_ID))
ds = store.create_dataset(columns=[
DatasetColumn(identifier=0, name='Name'),
DatasetColumn(identifier=1, name='Age', data_type="int")
],
rows=[
DatasetRow(identifier=0, values=['Alice', 32]),
DatasetRow(identifier=1, values=['Bob', 23])
],
properties={"example_property": "foo"})
# print(ds)
# print([col.identifier for col in ds.columns])
# print([col.name for col in ds.columns])
dh = store.get_dataset(ds.identifier)
assert dh is not None
for row in dh.fetch_rows():
from vizier.engine.packages.mimir.command import mimir_geocode
from vizier.engine.packages.mimir.command import mimir_key_repair, mimir_missing_key
from vizier.engine.packages.mimir.command import mimir_missing_value, mimir_picker
from vizier.datastore.dataset import DatasetColumn, DatasetDescriptor
import vizier.engine.packages.base as pckg
import vizier.engine.packages.mimir.base as mimir
import vizier.viztrail.command as md
DATASETS = {
'ds':
DatasetDescriptor(identifier='0000',
name='ds',
columns=[
DatasetColumn(identifier=2, name='Some Name'),
DatasetColumn(identifier=1, name='Street')
])
}
PACKAGE = pckg.PackageIndex(mimir.MIMIR_LENSES)
class TestValidateMimir(unittest.TestCase):
def test_mimir_geocode(self):
"""Test validation of Mimir geocode lens."""
cmd = mimir_geocode(dataset_name='ds',
geocoder='GOOGLE',
street=1,
city=2,
materialize_input=False,
validate=True).to_external_form(
line += str(anno.row_id)
line += ']: ' + anno.key + ' = ' + str(anno.value)
print(line)
store = DatastoreClient(
urls=DatastoreClientUrlFactory(
urls=UrlFactory(
base_url='http://localhost:5000/vizier-db/api/v1'
),
project_id=PROJECT_ID
)
)
ds = store.create_dataset(
columns=[DatasetColumn(identifier=0, name='Name'), DatasetColumn(identifier=1, name='Age')],
rows=[DatasetRow(identifier=0, values=['Alice', 32]), DatasetRow(identifier=1, values=['Bob', 23])],
annotations=DatasetMetadata(rows=[DatasetAnnotation(row_id=1, key='user:comment', value='Needs cleaning')])
)
print(ds)
print([col.identifier for col in ds.columns])
print([col.name for col in ds.columns])
dh = store.get_dataset(ds.identifier)
for row in dh.fetch_rows():
print([row.identifier] + row.values)
annotations = dh.get_annotations()
print_annotations(annotations)
def test_column_index(self):
"""Test access to columns based on identifier and name."""
ds = DatasetDescriptor(identifier='0',
columns=[
DatasetColumn(identifier=0, name='ABC'),
DatasetColumn(identifier=1, name='A'),
DatasetColumn(identifier=2, name='ABC'),
DatasetColumn(identifier=3, name='DEF'),
DatasetColumn(identifier=4, name='xyz'),
])
# Get column by identifier
self.assertEqual(ds.column_by_id(0).name, 'ABC')
self.assertEqual(ds.column_by_id(1).name, 'A')
self.assertEqual(ds.column_by_id(2).name, 'ABC')
self.assertEqual(ds.column_by_id(3).name, 'DEF')
self.assertEqual(ds.column_by_id(4).name, 'xyz')
with self.assertRaises(ValueError):
ds.column_by_id(6)
with self.assertRaises(ValueError):
ds.column_by_id(-1)
# Get column by name
self.assertEqual(ds.column_by_name('ABC').identifier, 0)
self.assertEqual(ds.column_by_name('A').identifier, 1)
self.assertEqual(
ds.column_by_name('abc', ignore_case=True).identifier, 0)
self.assertEqual(
ds.column_by_name('XYZ', ignore_case=True).identifier, 4)
self.assertIsNone(ds.column_by_name('4'))
# Get column index
self.assertEqual(ds.column_index(0), 0)
self.assertEqual(ds.column_index(1), 1)
self.assertEqual(ds.column_index('DEF'), 3)
self.assertEqual(ds.column_index('XYZ'), 4)
self.assertEqual(ds.column_index('A'), 1)
self.assertEqual(ds.column_index('B'), 1)
self.assertEqual(ds.column_index('C'), 2)
self.assertEqual(ds.column_index('D'), 3)
self.assertEqual(ds.column_index('E'), 4)
for i in range(len(ds.columns)):
self.assertEqual(ds.get_index(i), i)
with self.assertRaises(ValueError):
ds.column_index('ABC')
with self.assertRaises(ValueError):
ds.column_index('abc')
# Create a descriptor when column identifier does not match the index
# position in the schema
ds = DatasetDescriptor(identifier='0',
columns=[
DatasetColumn(identifier=4, name='ABC'),
DatasetColumn(identifier=2, name='A'),
DatasetColumn(identifier=3, name='ABC'),
DatasetColumn(identifier=0, name='DEF'),
DatasetColumn(identifier=1, name='xyz'),
])
self.assertEqual(ds.column_by_id(0).name, 'DEF')
self.assertEqual(ds.column_by_id(1).name, 'xyz')
self.assertEqual(ds.column_by_id(2).name, 'A')
self.assertEqual(ds.column_by_id(3).name, 'ABC')
self.assertEqual(ds.column_by_id(4).name, 'ABC')
self.assertEqual(ds.column_index(0), 0)
self.assertEqual(ds.column_index(1), 1)
self.assertEqual(ds.column_index('DEF'), 3)
self.assertEqual(ds.column_index('XYZ'), 4)
self.assertEqual(ds.column_index('A'), 1)
self.assertEqual(ds.column_index('B'), 1)
self.assertEqual(ds.column_index('C'), 2)
self.assertEqual(ds.column_index('D'), 3)
self.assertEqual(ds.column_index('E'), 4)
self.assertEqual(ds.get_index(0), 3)
self.assertEqual(ds.get_index(1), 4)
self.assertEqual(ds.get_index(2), 1)
self.assertEqual(ds.get_index(3), 2)
self.assertEqual(ds.get_index(4), 0)