ClickHouse/dbms/tests/integration/test_external_dictionaries/external_sources.py

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# -*- coding: utf-8 -*-
import warnings
import pymysql.cursors
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import pymongo
from tzlocal import get_localzone
import datetime
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import os
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class ExternalSource(object):
def __init__(self, name, internal_hostname, internal_port,
docker_hostname, docker_port, user, password):
self.name = name
self.internal_hostname = internal_hostname
self.internal_port = int(internal_port)
self.docker_hostname = docker_hostname
self.docker_port = int(docker_port)
self.user = user
self.password = password
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def get_source_str(self, table_name):
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raise NotImplementedError("Method {} is not implemented for {}".format(
"get_source_config_part", self.__class__.__name__))
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def prepare(self, structure, table_name, cluster):
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raise NotImplementedError("Method {} is not implemented for {}".format(
"prepare_remote_source", self.__class__.__name__))
# data is banch of Row
def load_data(self, data):
raise NotImplementedError("Method {} is not implemented for {}".format(
"prepare_remote_source", self.__class__.__name__))
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def compatible_with_layout(self, layout):
return True
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class SourceMySQL(ExternalSource):
TYPE_MAPPING = {
'UInt8': 'tinyint unsigned',
'UInt16': 'smallint unsigned',
'UInt32': 'int unsigned',
'UInt64': 'bigint unsigned',
'Int8': 'tinyint',
'Int16': 'smallint',
'Int32': 'int',
'Int64': 'bigint',
'UUID': 'varchar(36)',
'Date': 'date',
'DateTime': 'datetime',
'String': 'text',
'Float32': 'float',
'Float64': 'double'
}
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def create_mysql_conn(self):
self.connection = pymysql.connect(
user=self.user,
password=self.password,
host=self.internal_hostname,
port=self.internal_port)
def execute_mysql_query(self, query):
with warnings.catch_warnings():
warnings.simplefilter("ignore")
with self.connection.cursor() as cursor:
cursor.execute(query)
self.connection.commit()
def get_source_str(self, table_name):
return '''
<mysql>
<replica>
<priority>1</priority>
<host>127.0.0.1</host>
<port>3333</port> <!-- Wrong port, for testing basic failover to work. -->
</replica>
<replica>
<priority>2</priority>
<host>{hostname}</host>
<port>{port}</port>
</replica>
<user>{user}</user>
<password>{password}</password>
<db>test</db>
<table>{tbl}</table>
</mysql>'''.format(
hostname=self.docker_hostname,
port=self.docker_port,
user=self.user,
password=self.password,
tbl=table_name,
)
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def prepare(self, structure, table_name, cluster):
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self.create_mysql_conn()
self.execute_mysql_query("create database if not exists test default character set 'utf8'")
fields_strs = []
for field in structure.keys + structure.ordinary_fields + structure.range_fields:
fields_strs.append(field.name + ' ' + self.TYPE_MAPPING[field.field_type])
create_query = '''create table test.{table_name} (
{fields_str});
'''.format(table_name=table_name, fields_str=','.join(fields_strs))
self.execute_mysql_query(create_query)
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self.ordered_names = structure.get_ordered_names()
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self.prepared = True
def load_data(self, data, table_name):
values_strs = []
if not data:
return
for row in data:
sorted_row = []
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for name in self.ordered_names:
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data = row.data[name]
if isinstance(row.data[name], str):
data = "'" + data + "'"
else:
data = str(data)
sorted_row.append(data)
values_strs.append('(' + ','.join(sorted_row) + ')')
query = 'insert into test.{} ({}) values {}'.format(
table_name,
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','.join(self.ordered_names),
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','.join(values_strs))
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self.execute_mysql_query(query)
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class SourceMongo(ExternalSource):
def get_source_str(self, table_name):
return '''
<mongodb>
<host>{host}</host>
<port>{port}</port>
<user>{user}</user>
<password>{password}</password>
<db>test</db>
<collection>{tbl}</collection>
</mongodb>
'''.format(
host=self.docker_hostname,
port=self.docker_port,
user=self.user,
password=self.password,
tbl=table_name,
)
def prepare(self, structure, table_name, cluster):
connection_str = 'mongodb://{user}:{password}@{host}:{port}'.format(
host=self.internal_hostname, port=self.internal_port,
user=self.user, password=self.password)
self.connection = pymongo.MongoClient(connection_str)
self.converters = {}
for field in structure.get_all_fields():
if field.field_type == "Date":
self.converters[field.name] = lambda x: datetime.datetime.strptime(x, "%Y-%m-%d")
elif field.field_type == "DateTime":
self.converters[field.name] = lambda x: get_localzone().localize(datetime.datetime.strptime(x, "%Y-%m-%d %H:%M:%S"))
else:
self.converters[field.name] = lambda x: x
self.db = self.connection['test']
self.db.add_user(self.user, self.password)
self.prepared = True
def load_data(self, data, table_name):
tbl = self.db[table_name]
to_insert = []
for row in data:
row_dict = {}
for cell_name, cell_value in row.data.items():
row_dict[cell_name] = self.converters[cell_name](cell_value)
to_insert.append(row_dict)
result = tbl.insert_many(to_insert)
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class SourceClickHouse(ExternalSource):
def get_source_str(self, table_name):
return '''
<clickhouse>
<host>{host}</host>
<port>{port}</port>
<user>{user}</user>
<password>{password}</password>
<db>test</db>
<table>{tbl}</table>
</clickhouse>
'''.format(
host=self.docker_hostname,
port=self.docker_port,
user=self.user,
password=self.password,
tbl=table_name,
)
def prepare(self, structure, table_name, cluster):
self.node = cluster.instances[self.docker_hostname]
self.node.query("CREATE DATABASE IF NOT EXISTS test")
fields_strs = []
for field in structure.keys + structure.ordinary_fields + structure.range_fields:
fields_strs.append(field.name + ' ' + field.field_type)
create_query = '''CREATE TABLE test.{table_name} (
{fields_str}) ENGINE MergeTree ORDER BY tuple();
'''.format(table_name=table_name, fields_str=','.join(fields_strs))
self.node.query(create_query)
self.ordered_names = structure.get_ordered_names()
self.prepared = True
def load_data(self, data, table_name):
values_strs = []
if not data:
return
for row in data:
sorted_row = []
for name in self.ordered_names:
row_data = row.data[name]
if isinstance(row_data, str):
row_data = "'" + row_data + "'"
else:
row_data = str(row_data)
sorted_row.append(row_data)
values_strs.append('(' + ','.join(sorted_row) + ')')
query = 'INSERT INTO test.{} ({}) values {}'.format(
table_name,
','.join(self.ordered_names),
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','.join(values_strs))
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self.node.query(query)
class SourceFile(ExternalSource):
def get_source_str(self, table_name):
table_path = "/" + table_name + ".tsv"
return '''
<file>
<path>{path}</path>
<format>TabSeparated</format>
</file>
'''.format(
path=table_path,
)
def prepare(self, structure, table_name, cluster):
self.node = cluster.instances[self.docker_hostname]
path = "/" + table_name + ".tsv"
self.node.exec_in_container(["bash", "-c", "touch {}".format(path)])
self.ordered_names = structure.get_ordered_names()
self.prepared = True
def load_data(self, data, table_name):
if not data:
return
path = "/" + table_name + ".tsv"
for row in list(data):
sorted_row = []
for name in self.ordered_names:
sorted_row.append(str(row.data[name]))
str_data = '\t'.join(sorted_row)
self.node.exec_in_container(["bash", "-c", "echo \"{row}\" >> {fname}".format(row=str_data, fname=path)])
def compatible_with_layout(self, layout):
return 'cache' not in layout.name
class _SourceExecutableBase(ExternalSource):
def _get_cmd(self, path):
raise NotImplementedError("Method {} is not implemented for {}".format(
"_get_cmd", self.__class__.__name__))
def get_source_str(self, table_name):
table_path = "/" + table_name + ".tsv"
return '''
<executable>
<command>{cmd}</command>
<format>TabSeparated</format>
</executable>
'''.format(
cmd=self._get_cmd(table_path),
)
def prepare(self, structure, table_name, cluster):
self.node = cluster.instances[self.docker_hostname]
path = "/" + table_name + ".tsv"
self.node.exec_in_container(["bash", "-c", "touch {}".format(path)])
self.ordered_names = structure.get_ordered_names()
self.prepared = True
def load_data(self, data, table_name):
if not data:
return
path = "/" + table_name + ".tsv"
for row in list(data):
sorted_row = []
for name in self.ordered_names:
sorted_row.append(str(row.data[name]))
str_data = '\t'.join(sorted_row)
self.node.exec_in_container(["bash", "-c", "echo \"{row}\" >> {fname}".format(row=str_data, fname=path)])
class SourceExecutableCache(_SourceExecutableBase):
def _get_cmd(self, path):
return "cat {}".format(path)
def compatible_with_layout(self, layout):
return 'cache' not in layout.name
class SourceExecutableHashed(_SourceExecutableBase):
def _get_cmd(self, path):
return "cat - >/dev/null;cat {}".format(path)
def compatible_with_layout(self, layout):
return 'cache' in layout.name
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class SourceHTTPBase(ExternalSource):
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PORT_COUNTER = 5555
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def get_source_str(self, table_name):
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self.http_port = SourceHTTPBase.PORT_COUNTER
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url = "{schema}://{host}:{port}/".format(schema=self._get_schema(), host=self.docker_hostname, port=self.http_port)
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SourceHTTPBase.PORT_COUNTER += 1
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return '''
<http>
<url>{url}</url>
<format>TabSeparated</format>
</http>
'''.format(url=url)
def prepare(self, structure, table_name, cluster):
self.node = cluster.instances[self.docker_hostname]
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path = "/" + table_name + ".tsv"
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self.node.exec_in_container(["bash", "-c", "touch {}".format(path)])
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script_dir = os.path.dirname(os.path.realpath(__file__))
self.node.copy_file_to_container(os.path.join(script_dir, './http_server.py'), '/http_server.py')
self.node.copy_file_to_container(os.path.join(script_dir, './fake_cert.pem'), '/fake_cert.pem')
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self.node.exec_in_container([
"bash",
"-c",
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"python2 /http_server.py --data-path={tbl} --schema={schema} --host={host} --port={port} --cert-path=/fake_cert.pem".format(
tbl=path, schema=self._get_schema(), host=self.docker_hostname, port=self.http_port)
], detach=True)
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self.ordered_names = structure.get_ordered_names()
self.prepared = True
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def load_data(self, data, table_name):
if not data:
return
path = "/" + table_name + ".tsv"
for row in list(data):
sorted_row = []
for name in self.ordered_names:
sorted_row.append(str(row.data[name]))
str_data = '\t'.join(sorted_row)
self.node.exec_in_container(["bash", "-c", "echo \"{row}\" >> {fname}".format(row=str_data, fname=path)])
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class SourceHTTP(SourceHTTPBase):
def _get_schema(self):
return "http"
class SourceHTTPS(SourceHTTPBase):
def _get_schema(self):
return "https"