Changeset View
Changeset View
Standalone View
Standalone View
swh/storage/cassandra/cql.py
| # Copyright (C) 2019-2020 The Software Heritage developers | # Copyright (C) 2019-2020 The Software Heritage developers | ||||
| # See the AUTHORS file at the top-level directory of this distribution | # See the AUTHORS file at the top-level directory of this distribution | ||||
| # License: GNU General Public License version 3, or any later version | # License: GNU General Public License version 3, or any later version | ||||
| # See top-level LICENSE file for more information | # See top-level LICENSE file for more information | ||||
| import datetime | |||||
| import functools | import functools | ||||
| import json | import json | ||||
| import logging | import logging | ||||
| import random | import random | ||||
| from typing import ( | from typing import ( | ||||
| Any, Callable, Dict, Iterable, Iterator, List, Optional, | Any, Callable, Dict, Iterable, Iterator, List, Optional, | ||||
| Tuple, TypeVar | Tuple, TypeVar | ||||
| ) | ) | ||||
| from cassandra import CoordinationFailure | from cassandra import CoordinationFailure | ||||
| from cassandra.cluster import ( | from cassandra.cluster import ( | ||||
| Cluster, EXEC_PROFILE_DEFAULT, ExecutionProfile, ResultSet) | Cluster, EXEC_PROFILE_DEFAULT, ExecutionProfile, ResultSet) | ||||
| from cassandra.policies import DCAwareRoundRobinPolicy, TokenAwarePolicy | from cassandra.policies import DCAwareRoundRobinPolicy, TokenAwarePolicy | ||||
| from cassandra.query import PreparedStatement, BoundStatement | from cassandra.query import PreparedStatement, BoundStatement | ||||
| from tenacity import ( | from tenacity import ( | ||||
| retry, stop_after_attempt, wait_random_exponential, | retry, stop_after_attempt, wait_random_exponential, | ||||
| retry_if_exception_type, | retry_if_exception_type, | ||||
| ) | ) | ||||
| from swh.model.model import ( | from swh.model.model import ( | ||||
| Sha1Git, TimestampWithTimezone, Timestamp, Person, Content, | Sha1Git, TimestampWithTimezone, Timestamp, Person, Content, | ||||
| SkippedContent, OriginVisit, Origin | SkippedContent, OriginVisit, OriginVisitUpdate, Origin | ||||
| ) | ) | ||||
| from .common import Row, TOKEN_BEGIN, TOKEN_END, hash_url | from .common import Row, TOKEN_BEGIN, TOKEN_END, hash_url | ||||
| from .schema import CREATE_TABLES_QUERIES, HASH_ALGORITHMS | from .schema import CREATE_TABLES_QUERIES, HASH_ALGORITHMS | ||||
| logger = logging.getLogger(__name__) | logger = logging.getLogger(__name__) | ||||
| ▲ Show 20 Lines • Show All 566 Lines • ▼ Show 20 Lines | def origin_visit_get( | ||||
| if last_visit is None: | if last_visit is None: | ||||
| last_visit = -1 | last_visit = -1 | ||||
| if limit is None: | if limit is None: | ||||
| return self._origin_visit_get_no_limit(origin_url, last_visit) | return self._origin_visit_get_no_limit(origin_url, last_visit) | ||||
| else: | else: | ||||
| return self._origin_visit_get_limit(origin_url, last_visit, limit) | return self._origin_visit_get_limit(origin_url, last_visit, limit) | ||||
| def origin_visit_update( | |||||
| self, origin_url: str, visit_id: int, updates: Dict[str, Any] | |||||
| ) -> None: | |||||
| set_parts = [] | |||||
| args: List[Any] = [] | |||||
| for (column, value) in updates.items(): | |||||
| set_parts.append(f'{column} = %s') | |||||
| if column == 'metadata': | |||||
| args.append(json.dumps(value)) | |||||
| else: | |||||
| args.append(value) | |||||
| if not set_parts: | |||||
| return | |||||
| query = ('UPDATE origin_visit SET ' + ', '.join(set_parts) + | |||||
| ' WHERE origin = %s AND visit = %s') | |||||
| self._execute_with_retries( | |||||
| query, args + [origin_url, visit_id]) | |||||
vlorentz: You should be able to remove this method now | |||||
Done Inline Actionsyeah, i'll check. ardumont: yeah, i'll check. | |||||
| @_prepared_insert_statement('origin_visit', _origin_visit_keys) | @_prepared_insert_statement('origin_visit', _origin_visit_keys) | ||||
| def origin_visit_add_one( | def origin_visit_add_one( | ||||
| self, visit: OriginVisit, *, statement) -> None: | self, visit: OriginVisit, *, statement) -> None: | ||||
| self._add_one(statement, 'origin_visit', visit, | self._add_one(statement, 'origin_visit', visit, | ||||
| self._origin_visit_keys) | self._origin_visit_keys) | ||||
| _origin_visit_update_table_keys = [ | |||||
| 'origin', 'visit', 'date', 'status', 'snapshot', 'metadata' | |||||
| ] | |||||
| @_prepared_insert_statement( | |||||
| 'origin_visit_update', _origin_visit_update_table_keys) | |||||
| def origin_visit_update_add_one( | |||||
| self, visit_update: OriginVisitUpdate, *, statement) -> None: | |||||
| assert self._origin_visit_update_table_keys[-1] == 'metadata' | |||||
| keys = self._origin_visit_update_table_keys | |||||
| metadata = json.dumps(visit_update.metadata) | |||||
| self._execute_with_retries( | |||||
| statement, | |||||
| [getattr(visit_update, key) for key in keys[:-1]] + [metadata]) | |||||
| def _format_origin_visit_update_row( | |||||
| self, visit_update: ResultSet) -> Dict[str, Any]: | |||||
| """Format a row visit_update into an origin_visit_update dict | |||||
| """ | |||||
| return { | |||||
| **visit_update._asdict(), | |||||
| 'origin': visit_update.origin, | |||||
| 'date': visit_update.date.replace(tzinfo=datetime.timezone.utc), | |||||
| 'metadata': (json.loads(visit_update.metadata) | |||||
| if visit_update.metadata else None), | |||||
| } | |||||
| @_prepared_statement('SELECT * FROM origin_visit_update ' | |||||
| 'WHERE origin = ? AND visit = ? ' | |||||
| 'ORDER BY date DESC ' | |||||
| 'LIMIT 1') | |||||
| def origin_visit_update_get_latest( | |||||
| self, origin: str, visit: int, | |||||
| *, statement) -> Optional[Dict[str, Any]]: | |||||
| """Given an origin visit id, return its latest origin_visit_update | |||||
| """ | |||||
| rows = list(self._execute_with_retries( | |||||
| statement, [origin, visit])) | |||||
| if rows: | |||||
| return self._format_origin_visit_update_row(rows[0]) | |||||
| else: | |||||
| return None | |||||
| @_prepared_statement( | @_prepared_statement( | ||||
| 'UPDATE origin_visit SET ' + | 'UPDATE origin_visit SET ' + | ||||
| ', '.join('%s = ?' % key for key in _origin_visit_update_keys) + | ', '.join('%s = ?' % key for key in _origin_visit_update_keys) + | ||||
| ' WHERE origin = ? AND visit = ?') | ' WHERE origin = ? AND visit = ?') | ||||
| def origin_visit_upsert( | def origin_visit_upsert( | ||||
| self, visit: OriginVisit, *, statement) -> None: | self, visit: OriginVisit, *, statement) -> None: | ||||
| args: List[Any] = [] | args: List[Any] = [] | ||||
| for column in self._origin_visit_update_keys: | for column in self._origin_visit_update_keys: | ||||
| Show All 20 Lines | def origin_visit_get_one( | ||||
| else: | else: | ||||
| return None | return None | ||||
| @_prepared_statement('SELECT * FROM origin_visit ' | @_prepared_statement('SELECT * FROM origin_visit ' | ||||
| 'WHERE origin = ?') | 'WHERE origin = ?') | ||||
| def origin_visit_get_all(self, origin_url: str, *, statement) -> ResultSet: | def origin_visit_get_all(self, origin_url: str, *, statement) -> ResultSet: | ||||
| return self._execute_with_retries(statement, [origin_url]) | return self._execute_with_retries(statement, [origin_url]) | ||||
| @_prepared_statement('SELECT * FROM origin_visit WHERE origin = ?') | |||||
| def origin_visit_get_latest( | |||||
| self, origin: str, allowed_statuses: Optional[Iterable[str]], | |||||
| require_snapshot: bool, *, statement) -> Optional[Row]: | |||||
| # TODO: do the ordering and filtering in Cassandra | |||||
| rows = list(self._execute_with_retries(statement, [origin])) | |||||
| rows.sort(key=lambda row: (row.date, row.visit), reverse=True) | |||||
| for row in rows: | |||||
| if require_snapshot and row.snapshot is None: | |||||
| continue | |||||
| if allowed_statuses is not None \ | |||||
| and row.status not in allowed_statuses: | |||||
| continue | |||||
| if row.snapshot is not None and \ | |||||
| self.snapshot_missing([row.snapshot]): | |||||
| raise ValueError('visit references unknown snapshot') | |||||
| return row | |||||
| else: | |||||
| return None | |||||
| @_prepared_statement('SELECT * FROM origin_visit WHERE token(origin) >= ?') | @_prepared_statement('SELECT * FROM origin_visit WHERE token(origin) >= ?') | ||||
| def _origin_visit_iter_from( | def _origin_visit_iter_from( | ||||
| self, min_token: int, *, statement) -> Iterator[Row]: | self, min_token: int, *, statement) -> Iterator[Row]: | ||||
| yield from self._execute_with_retries(statement, [min_token]) | yield from self._execute_with_retries(statement, [min_token]) | ||||
| @_prepared_statement('SELECT * FROM origin_visit WHERE token(origin) < ?') | @_prepared_statement('SELECT * FROM origin_visit WHERE token(origin) < ?') | ||||
| def _origin_visit_iter_to( | def _origin_visit_iter_to( | ||||
| self, max_token: int, *, statement) -> Iterator[Row]: | self, max_token: int, *, statement) -> Iterator[Row]: | ||||
| ▲ Show 20 Lines • Show All 52 Lines • Show Last 20 Lines | |||||
You should be able to remove this method now