def __init__(self, host=None, port=None, document_class=dict, tz_aware=False, connect=True, **kwargs): """Client for a MongoDB instance, a replica set, or a set of mongoses. The client object is thread-safe and has connection-pooling built in. If an operation fails because of a network error, :class:`~pymongo.errors.ConnectionFailure` is raised and the client reconnects in the background. Application code should handle this exception (recognizing that the operation failed) and then continue to execute. The `host` parameter can be a full `mongodb URI <http://dochub.mongodb.org/core/connections>`_, in addition to a simple hostname. It can also be a list of hostnames or URIs. Any port specified in the host string(s) will override the `port` parameter. If multiple mongodb URIs containing database or auth information are passed, the last database, username, and password present will be used. For username and passwords reserved characters like ':', '/', '+' and '@' must be escaped following RFC 2396. .. warning:: When using PyMongo in a multiprocessing context, please read :ref:`multiprocessing` first. :Parameters: - `host` (optional): hostname or IP address of the instance to connect to, or a mongodb URI, or a list of hostnames / mongodb URIs. If `host` is an IPv6 literal it must be enclosed in '[' and ']' characters following the RFC2732 URL syntax (e.g. '[::1]' for localhost) - `port` (optional): port number on which to connect - `document_class` (optional): default class to use for documents returned from queries on this client - `tz_aware` (optional): if ``True``, :class:`~datetime.datetime` instances returned as values in a document by this :class:`MongoClient` will be timezone aware (otherwise they will be naive) - `connect` (optional): if ``True`` (the default), immediately begin connecting to MongoDB in the background. Otherwise connect on the first operation. | **Other optional parameters can be passed as keyword arguments:** - `maxPoolSize` (optional): The maximum number of connections that the pool will open simultaneously. If this is set, operations will block if there are `maxPoolSize` outstanding connections from the pool. Defaults to 100. Cannot be 0. - `socketTimeoutMS`: (integer or None) Controls how long (in milliseconds) the driver will wait for a response after sending an ordinary (non-monitoring) database operation before concluding that a network error has occurred. Defaults to ``None`` (no timeout). - `connectTimeoutMS`: (integer or None) Controls how long (in milliseconds) the driver will wait during server monitoring when connecting a new socket to a server before concluding the server is unavailable. Defaults to ``20000`` (20 seconds). - `serverSelectionTimeoutMS`: (integer) Controls how long (in milliseconds) the driver will wait to find an available, appropriate server to carry out a database operation; while it is waiting, multiple server monitoring operations may be carried out, each controlled by `connectTimeoutMS`. Defaults to ``30000`` (30 seconds). - `waitQueueTimeoutMS`: (integer or None) How long (in milliseconds) a thread will wait for a socket from the pool if the pool has no free sockets. Defaults to ``None`` (no timeout). - `waitQueueMultiple`: (integer or None) Multiplied by maxPoolSize to give the number of threads allowed to wait for a socket at one time. Defaults to ``None`` (no limit). - `socketKeepAlive`: (boolean) Whether to send periodic keep-alive packets on connected sockets. Defaults to ``False`` (do not send keep-alive packets). | **Write Concern options:** | (Only set if passed. No default values.) - `w`: (integer or string) If this is a replica set, write operations will block until they have been replicated to the specified number or tagged set of servers. `w=<int>` always includes the replica set primary (e.g. w=3 means write to the primary and wait until replicated to **two** secondaries). Passing w=0 **disables write acknowledgement** and all other write concern options. - `wtimeout`: (integer) Used in conjunction with `w`. Specify a value in milliseconds to control how long to wait for write propagation to complete. If replication does not complete in the given timeframe, a timeout exception is raised. - `j`: If ``True`` block until write operations have been committed to the journal. Cannot be used in combination with `fsync`. Prior to MongoDB 2.6 this option was ignored if the server was running without journaling. Starting with MongoDB 2.6 write operations will fail with an exception if this option is used when the server is running without journaling. - `fsync`: If ``True`` and the server is running without journaling, blocks until the server has synced all data files to disk. If the server is running with journaling, this acts the same as the `j` option, blocking until write operations have been committed to the journal. Cannot be used in combination with `j`. | **Replica set keyword arguments for connecting with a replica set - either directly or via a mongos:** - `replicaSet`: (string or None) The name of the replica set to connect to. The driver will verify that all servers it connects to match this name. Implies that the hosts specified are a seed list and the driver should attempt to find all members of the set. Defaults to ``None``. - `read_preference`: The read preference for this client. If connecting directly to a secondary then a read preference mode *other* than PRIMARY is required - otherwise all queries will throw :class:`~pymongo.errors.AutoReconnect` "not master". See :class:`~pymongo.read_preferences.ReadPreference` for all available read preference options. Defaults to ``PRIMARY``. | **SSL configuration:** - `ssl`: If ``True``, create the connection to the server using SSL. Defaults to ``False``. - `ssl_keyfile`: The private keyfile used to identify the local connection against mongod. If included with the ``certfile`` then only the ``ssl_certfile`` is needed. Implies ``ssl=True``. Defaults to ``None``. - `ssl_certfile`: The certificate file used to identify the local connection against mongod. Implies ``ssl=True``. Defaults to ``None``. - `ssl_cert_reqs`: Specifies whether a certificate is required from the other side of the connection, and whether it will be validated if provided. It must be one of the three values ``ssl.CERT_NONE`` (certificates ignored), ``ssl.CERT_OPTIONAL`` (not required, but validated if provided), or ``ssl.CERT_REQUIRED`` (required and validated). If the value of this parameter is not ``ssl.CERT_NONE`` and a value is not provided for ``ssl_ca_certs`` PyMongo will attempt to load system provided CA certificates. If the python version in use does not support loading system CA certificates then the ``ssl_ca_certs`` parameter must point to a file of CA certificates. Implies ``ssl=True``. Defaults to ``ssl.CERT_REQUIRED`` if not provided and ``ssl=True``. - `ssl_ca_certs`: The ca_certs file contains a set of concatenated "certification authority" certificates, which are used to validate certificates passed from the other end of the connection. Implies ``ssl=True``. Defaults to ``None``. - `ssl_match_hostname`: If ``True`` (the default), and `ssl_cert_reqs` is not ``ssl.CERT_NONE``, enables hostname verification using the :func:`~ssl.match_hostname` function from python's :mod:`~ssl` module. Think very carefully before setting this to ``False`` as that could make your application vulnerable to man-in-the-middle attacks. .. mongodoc:: connections .. versionchanged:: 3.0 :class:`~pymongo.mongo_client.MongoClient` is now the one and only client class for a standalone server, mongos, or replica set. It includes the functionality that had been split into :class:`~pymongo.mongo_client.MongoReplicaSetClient`: it can connect to a replica set, discover all its members, and monitor the set for stepdowns, elections, and reconfigs. The :class:`~pymongo.mongo_client.MongoClient` constructor no longer blocks while connecting to the server or servers, and it no longer raises :class:`~pymongo.errors.ConnectionFailure` if they are unavailable, nor :class:`~pymongo.errors.ConfigurationError` if the user's credentials are wrong. Instead, the constructor returns immediately and launches the connection process on background threads. Therefore the ``alive`` method is removed since it no longer provides meaningful information; even if the client is disconnected, it may discover a server in time to fulfill the next operation. In PyMongo 2.x, :class:`~pymongo.MongoClient` accepted a list of standalone MongoDB servers and used the first it could connect to:: MongoClient(['host1.com:27017', 'host2.com:27017']) A list of multiple standalones is no longer supported; if multiple servers are listed they must be members of the same replica set, or mongoses in the same sharded cluster. The behavior for a list of mongoses is changed from "high availability" to "load balancing". Before, the client connected to the lowest-latency mongos in the list, and used it until a network error prompted it to re-evaluate all mongoses' latencies and reconnect to one of them. In PyMongo 3, the client monitors its network latency to all the mongoses continuously, and distributes operations evenly among those with the lowest latency. See :ref:`mongos-load-balancing` for more information. The ``connect`` option is added. The ``start_request``, ``in_request``, and ``end_request`` methods are removed, as well as the ``auto_start_request`` option. The ``copy_database`` method is removed, see the :doc:`copy_database examples </examples/copydb>` for alternatives. The :meth:`MongoClient.disconnect` method is removed; it was a synonym for :meth:`~pymongo.MongoClient.close`. :class:`~pymongo.mongo_client.MongoClient` no longer returns an instance of :class:`~pymongo.database.Database` for attribute names with leading underscores. You must use dict-style lookups instead:: client['__my_database__'] Not:: client.__my_database__ """ if host is None: host = self.HOST if isinstance(host, string_type): host = [host] if port is None: port = self.PORT if not isinstance(port, int): raise TypeError("port must be an instance of int") seeds = set() username = None password = None dbase = None opts = {} for entity in host: if "://" in entity: if entity.startswith("mongodb://"): res = uri_parser.parse_uri(entity, port, warn=True) seeds.update(res["nodelist"]) username = res["username"] or username password = res["password"] or password dbase = res["database"] or dbase opts = res["options"] else: idx = entity.find("://") raise InvalidURI("Invalid URI scheme: " "%s" % (entity[:idx], )) else: seeds.update(uri_parser.split_hosts(entity, port)) if not seeds: raise ConfigurationError("need to specify at least one host") # _pool_class, _monitor_class, and _condition_class are for deep # customization of PyMongo, e.g. Motor. pool_class = kwargs.pop('_pool_class', None) monitor_class = kwargs.pop('_monitor_class', None) condition_class = kwargs.pop('_condition_class', None) keyword_opts = kwargs keyword_opts['document_class'] = document_class keyword_opts['tz_aware'] = tz_aware keyword_opts['connect'] = connect # Validate all keyword options. keyword_opts = dict( common.validate(k, v) for k, v in keyword_opts.items()) opts.update(keyword_opts) self.__options = options = ClientOptions(username, password, dbase, opts) self.__default_database_name = dbase self.__lock = threading.Lock() self.__cursor_manager = CursorManager(self) self.__kill_cursors_queue = [] # Cache of existing indexes used by ensure_index ops. self.__index_cache = {} super(MongoClient, self).__init__(options.codec_options, options.read_preference, options.write_concern) self.__all_credentials = {} creds = options.credentials if creds: self._cache_credentials(creds.source, creds) self._topology_settings = TopologySettings( seeds=seeds, replica_set_name=options.replica_set_name, pool_class=pool_class, pool_options=options.pool_options, monitor_class=monitor_class, condition_class=condition_class, local_threshold_ms=options.local_threshold_ms, server_selection_timeout=options.server_selection_timeout) self._topology = Topology(self._topology_settings) if connect: self._topology.open() def target(): client = self_ref() if client is None: return False # Stop the executor. MongoClient._process_kill_cursors_queue(client) return True executor = periodic_executor.PeriodicExecutor( condition_class=self._topology_settings.condition_class, interval=common.KILL_CURSOR_FREQUENCY, min_interval=0, target=target, name="pymongo_kill_cursors_thread") # We strongly reference the executor and it weakly references us via # this closure. When the client is freed, stop the executor soon. self_ref = weakref.ref(self, executor.close) self._kill_cursors_executor = executor executor.open()
def __init__(self, host=None, port=None, max_pool_size=10, document_class=dict, tz_aware=False, _connect=True, **kwargs): """Create a new connection to a single MongoDB instance at *host:port*. The resultant client object has connection-pooling built in. It also performs auto-reconnection when necessary. If an operation fails because of a connection error, :class:`~pymongo.errors.ConnectionFailure` is raised. If auto-reconnection will be performed, :class:`~pymongo.errors.AutoReconnect` will be raised. Application code should handle this exception (recognizing that the operation failed) and then continue to execute. Raises :class:`TypeError` if port is not an instance of ``int``. Raises :class:`~pymongo.errors.ConnectionFailure` if the connection cannot be made. The `host` parameter can be a full `mongodb URI <http://dochub.mongodb.org/core/connections>`_, in addition to a simple hostname. It can also be a list of hostnames or URIs. Any port specified in the host string(s) will override the `port` parameter. If multiple mongodb URIs containing database or auth information are passed, the last database, username, and password present will be used. For username and passwords reserved characters like ':', '/', '+' and '@' must be escaped following RFC 2396. :Parameters: - `host` (optional): hostname or IP address of the instance to connect to, or a mongodb URI, or a list of hostnames / mongodb URIs. If `host` is an IPv6 literal it must be enclosed in '[' and ']' characters following the RFC2732 URL syntax (e.g. '[::1]' for localhost) - `port` (optional): port number on which to connect - `max_pool_size` (optional): The maximum number of idle connections to keep open in the pool for future use - `document_class` (optional): default class to use for documents returned from queries on this client - `tz_aware` (optional): if ``True``, :class:`~datetime.datetime` instances returned as values in a document by this :class:`MongoClient` will be timezone aware (otherwise they will be naive) | **Other optional parameters can be passed as keyword arguments:** - `socketTimeoutMS`: (integer) How long (in milliseconds) a send or receive on a socket can take before timing out. - `connectTimeoutMS`: (integer) How long (in milliseconds) a connection can take to be opened before timing out. - `auto_start_request`: If ``True``, each thread that accesses this :class:`MongoClient` has a socket allocated to it for the thread's lifetime. This ensures consistent reads, even if you read after an unacknowledged write. Defaults to ``False`` - `use_greenlets`: If ``True``, :meth:`start_request()` will ensure that the current greenlet uses the same socket for all operations until :meth:`end_request()` | **Write Concern options:** - `w`: (integer or string) If this is a replica set, write operations will block until they have been replicated to the specified number or tagged set of servers. `w=<int>` always includes the replica set primary (e.g. w=3 means write to the primary and wait until replicated to **two** secondaries). Passing w=0 **disables write acknowledgement** and all other write concern options. - `wtimeout`: (integer) Used in conjunction with `w`. Specify a value in milliseconds to control how long to wait for write propagation to complete. If replication does not complete in the given timeframe, a timeout exception is raised. - `j`: If ``True`` block until write operations have been committed to the journal. Ignored if the server is running without journaling. - `fsync`: If ``True`` force the database to fsync all files before returning. When used with `j` the server awaits the next group commit before returning. | **Replica set keyword arguments for connecting with a replica set - either directly or via a mongos:** | (ignored by standalone mongod instances) - `replicaSet`: (string) The name of the replica set to connect to. The driver will verify that the replica set it connects to matches this name. Implies that the hosts specified are a seed list and the driver should attempt to find all members of the set. *Ignored by mongos*. - `read_preference`: The read preference for this client. If connecting to a secondary then a read preference mode *other* than PRIMARY is required - otherwise all queries will throw :class:`~pymongo.errors.AutoReconnect` "not master". See :class:`~pymongo.read_preferences.ReadPreference` for all available read preference options. - `tag_sets`: Ignored unless connecting to a replica set via mongos. Specify a priority-order for tag sets, provide a list of tag sets: ``[{'dc': 'ny'}, {'dc': 'la'}, {}]``. A final, empty tag set, ``{}``, means "read from any member that matches the mode, ignoring tags. | **SSL configuration:** - `ssl`: If ``True``, create the connection to the server using SSL. - `ssl_keyfile`: The private keyfile used to identify the local connection against mongod. If included with the ``certfile` then only the ``ssl_certfile`` is needed. Implies ``ssl=True``. - `ssl_certfile`: The certificate file used to identify the local connection against mongod. Implies ``ssl=True``. - `ssl_cert_reqs`: Specifies whether a certificate is required from the other side of the connection, and whether it will be validated if provided. It must be one of the three values ``ssl.CERT_NONE`` (certificates ignored), ``ssl.CERT_OPTIONAL`` (not required, but validated if provided), or ``ssl.CERT_REQUIRED`` (required and validated). If the value of this parameter is not ``ssl.CERT_NONE``, then the ``ssl_ca_certs`` parameter must point to a file of CA certificates. Implies ``ssl=True``. - `ssl_ca_certs`: The ca_certs file contains a set of concatenated "certification authority" certificates, which are used to validate certificates passed from the other end of the connection. Implies ``ssl=True``. .. seealso:: :meth:`end_request` .. mongodoc:: connections .. versionchanged:: 2.5 Added addtional ssl options .. versionadded:: 2.4 """ if host is None: host = self.HOST if isinstance(host, basestring): host = [host] if port is None: port = self.PORT if not isinstance(port, int): raise TypeError("port must be an instance of int") seeds = set() username = None password = None db_name = None opts = {} for entity in host: if "://" in entity: if entity.startswith("mongodb://"): res = uri_parser.parse_uri(entity, port) seeds.update(res["nodelist"]) username = res["username"] or username password = res["password"] or password db_name = res["database"] or db_name opts = res["options"] else: idx = entity.find("://") raise InvalidURI("Invalid URI scheme: " "%s" % (entity[:idx], )) else: seeds.update(uri_parser.split_hosts(entity, port)) if not seeds: raise ConfigurationError("need to specify at least one host") self.__nodes = seeds self.__host = None self.__port = None self.__is_primary = False self.__is_mongos = False # _pool_class option is for deep customization of PyMongo, e.g. Motor. # SHOULD NOT BE USED BY DEVELOPERS EXTERNAL TO 10GEN. pool_class = kwargs.pop('_pool_class', pool.Pool) options = {} for option, value in kwargs.iteritems(): option, value = common.validate(option, value) options[option] = value options.update(opts) self.__max_pool_size = common.validate_positive_integer( 'max_pool_size', max_pool_size) self.__cursor_manager = CursorManager(self) self.__repl = options.get('replicaset') if len(seeds) == 1 and not self.__repl: self.__direct = True else: self.__direct = False self.__nodes = set() self.__net_timeout = options.get('sockettimeoutms') self.__conn_timeout = options.get('connecttimeoutms') self.__use_ssl = options.get('ssl', None) self.__ssl_keyfile = options.get('ssl_keyfile', None) self.__ssl_certfile = options.get('ssl_certfile', None) self.__ssl_cert_reqs = options.get('ssl_cert_reqs', None) self.__ssl_ca_certs = options.get('ssl_ca_certs', None) ssl_kwarg_keys = [k for k in kwargs.keys() if k.startswith('ssl_')] if self.__use_ssl == False and ssl_kwarg_keys: raise ConfigurationError("ssl has not been enabled but the " "following ssl parameters have been set: " "%s. Please set `ssl=True` or remove." % ', '.join(ssl_kwarg_keys)) if self.__ssl_cert_reqs and not self.__ssl_ca_certs: raise ConfigurationError("If `ssl_cert_reqs` is not " "`ssl.CERT_NONE` then you must " "include `ssl_ca_certs` to be able " "to validate the server.") if ssl_kwarg_keys and self.__use_ssl is None: # ssl options imply ssl = True self.__use_ssl = True if self.__use_ssl and not HAS_SSL: raise ConfigurationError("The ssl module is not available. If you " "are using a python version previous to " "2.6 you must install the ssl package " "from PyPI.") self.__use_greenlets = options.get('use_greenlets', False) self.__pool = pool_class(None, self.__max_pool_size, self.__net_timeout, self.__conn_timeout, self.__use_ssl, use_greenlets=self.__use_greenlets, ssl_keyfile=self.__ssl_keyfile, ssl_certfile=self.__ssl_certfile, ssl_cert_reqs=self.__ssl_cert_reqs, ssl_ca_certs=self.__ssl_ca_certs) self.__document_class = document_class self.__tz_aware = common.validate_boolean('tz_aware', tz_aware) self.__auto_start_request = options.get('auto_start_request', False) # cache of existing indexes used by ensure_index ops self.__index_cache = {} self.__auth_credentials = {} super(MongoClient, self).__init__(**options) if self.slave_okay: warnings.warn( "slave_okay is deprecated. Please " "use read_preference instead.", DeprecationWarning, stacklevel=2) if _connect: try: self.__find_node(seeds) except AutoReconnect, e: # ConnectionFailure makes more sense here than AutoReconnect raise ConnectionFailure(str(e))
def __init__(self, host=None, port=None, max_pool_size=10, network_timeout=None, document_class=dict, tz_aware=False, _connect=True, **kwargs): """Create a new connection to a single MongoDB instance at *host:port*. The resultant connection object has connection-pooling built in. It also performs auto-reconnection when necessary. If an operation fails because of a connection error, :class:`~pymongo.errors.ConnectionFailure` is raised. If auto-reconnection will be performed, :class:`~pymongo.errors.AutoReconnect` will be raised. Application code should handle this exception (recognizing that the operation failed) and then continue to execute. Raises :class:`TypeError` if port is not an instance of ``int``. Raises :class:`~pymongo.errors.ConnectionFailure` if the connection cannot be made. The `host` parameter can be a full `mongodb URI <http://dochub.mongodb.org/core/connections>`_, in addition to a simple hostname. It can also be a list of hostnames or URIs. Any port specified in the host string(s) will override the `port` parameter. If multiple mongodb URIs containing database or auth information are passed, the last database, username, and password present will be used. For username and passwords reserved characters like ':', '/', '+' and '@' must be escaped following RFC 2396. :Parameters: - `host` (optional): hostname or IP address of the instance to connect to, or a mongodb URI, or a list of hostnames / mongodb URIs. If `host` is an IPv6 literal it must be enclosed in '[' and ']' characters following the RFC2732 URL syntax (e.g. '[::1]' for localhost) - `port` (optional): port number on which to connect - `max_pool_size` (optional): The maximum size limit for the connection pool. - `network_timeout` (optional): timeout (in seconds) to use for socket operations - default is no timeout - `document_class` (optional): default class to use for documents returned from queries on this connection - `tz_aware` (optional): if ``True``, :class:`~datetime.datetime` instances returned as values in a document by this :class:`Connection` will be timezone aware (otherwise they will be naive) Other optional parameters can be passed as keyword arguments: - `safe`: Use getlasterror for each write operation? - `j` or `journal`: Block until write operations have been committed to the journal. Ignored if the server is running without journaling. Implies safe=True. - `w`: (integer or string) If this is a replica set write operations won't return until they have been replicated to the specified number or tagged set of servers. Implies safe=True. - `wtimeout`: Used in conjunction with `j` and/or `w`. Wait this many milliseconds for journal acknowledgement and/or write replication. Implies safe=True. - `fsync`: Force the database to fsync all files before returning When used with `j` the server awaits the next group commit before returning. Implies safe=True. - `replicaSet`: The name of the replica set to connect to. The driver will verify that the replica set it connects to matches this name. Implies that the hosts specified are a seed list and the driver should attempt to find all members of the set. - `socketTimeoutMS`: How long a send or receive on a socket can take before timing out. - `connectTimeoutMS`: How long a connection can take to be opened before timing out. - `ssl`: If True, create the connection to the server using SSL. - `read_preference`: The read preference for this connection. See :class:`~pymongo.read_preferences.ReadPreference` for available options. - `auto_start_request`: If True (the default), each thread that accesses this Connection has a socket allocated to it for the thread's lifetime. This ensures consistent reads, even if you read after an unsafe write. - `use_greenlets` (optional): if ``True``, :meth:`start_request()` will ensure that the current greenlet uses the same socket for all operations until :meth:`end_request()` - `slave_okay` or `slaveOk` (deprecated): Use `read_preference` instead. .. seealso:: :meth:`end_request` .. versionchanged:: 2.3 Added support for failover between mongos seed list members. .. versionchanged:: 2.2 Added `auto_start_request` option back. Added `use_greenlets` option. .. versionchanged:: 2.1 Support `w` = integer or string. Added `ssl` option. DEPRECATED slave_okay/slaveOk. .. versionchanged:: 2.0 `slave_okay` is a pure keyword argument. Added support for safe, and getlasterror options as keyword arguments. .. versionchanged:: 1.11 Added `max_pool_size`. Completely removed previously deprecated `pool_size`, `auto_start_request` and `timeout` parameters. .. versionchanged:: 1.8 The `host` parameter can now be a full `mongodb URI <http://dochub.mongodb.org/core/connections>`_, in addition to a simple hostname. It can also be a list of hostnames or URIs. .. versionadded:: 1.8 The `tz_aware` parameter. .. versionadded:: 1.7 The `document_class` parameter. .. versionadded:: 1.1 The `network_timeout` parameter. .. mongodoc:: connections """ if host is None: host = self.HOST if isinstance(host, basestring): host = [host] if port is None: port = self.PORT if not isinstance(port, int): raise TypeError("port must be an instance of int") seeds = set() username = None password = None db = None options = {} for entity in host: if "://" in entity: if entity.startswith("mongodb://"): res = uri_parser.parse_uri(entity, port) seeds.update(res["nodelist"]) username = res["username"] or username password = res["password"] or password db = res["database"] or db options = res["options"] else: idx = entity.find("://") raise InvalidURI("Invalid URI scheme: " "%s" % (entity[:idx], )) else: seeds.update(uri_parser.split_hosts(entity, port)) if not seeds: raise ConfigurationError("need to specify at least one host") self.__nodes = seeds self.__host = None self.__port = None self.__is_primary = False self.__is_mongos = False for option, value in kwargs.iteritems(): option, value = common.validate(option, value) options[option] = value self.__max_pool_size = common.validate_positive_integer( 'max_pool_size', max_pool_size) self.__cursor_manager = CursorManager(self) self.__repl = options.get('replicaset') if len(seeds) == 1 and not self.__repl: self.__direct = True else: self.__direct = False self.__nodes = set() if network_timeout is not None: if (not isinstance(network_timeout, (int, float)) or network_timeout <= 0): raise ConfigurationError("network_timeout must " "be a positive integer") self.__net_timeout = (network_timeout or options.get('sockettimeoutms')) self.__conn_timeout = options.get('connecttimeoutms') self.__use_ssl = options.get('ssl', False) if self.__use_ssl and not pool.have_ssl: raise ConfigurationError("The ssl module is not available. If you " "are using a python version previous to " "2.6 you must install the ssl package " "from PyPI.") if options.get('use_greenlets', False): if not pool.have_greenlet: raise ConfigurationError( "The greenlet module is not available. " "Install the greenlet package from PyPI.") self.pool_class = pool.GreenletPool else: self.pool_class = pool.Pool self.__pool = self.pool_class(None, self.__max_pool_size, self.__net_timeout, self.__conn_timeout, self.__use_ssl) self.__document_class = document_class self.__tz_aware = common.validate_boolean('tz_aware', tz_aware) self.__auto_start_request = options.get('auto_start_request', True) # cache of existing indexes used by ensure_index ops self.__index_cache = {} self.__auth_credentials = {} super(Connection, self).__init__(**options) if self.slave_okay: warnings.warn( "slave_okay is deprecated. Please " "use read_preference instead.", DeprecationWarning) if _connect: self.__find_node(seeds) if db and username is None: warnings.warn("must provide a username and password " "to authenticate to %s" % (db, )) if username: db = db or "admin" if not self[db].authenticate(username, password): raise ConfigurationError("authentication failed")
def __init__(self, host=None, port=None, pool_size=None, auto_start_request=None, timeout=None, slave_okay=False, network_timeout=None, _connect=True): """Create a new connection to a single MongoDB instance at *host:port*. The resultant connection object has connection-pooling built in. It also performs auto-reconnection when necessary. If an operation fails because of a connection error, :class:`~pymongo.errors.ConnectionFailure` is raised. If auto-reconnection will be performed, :class:`~pymongo.errors.AutoReconnect` will be raised. Application code should handle this exception (recognizing that the operation failed) and then continue to execute. Raises :class:`TypeError` if host is not an instance of string or port is not an instance of ``int``. Raises :class:`~pymongo.errors.ConnectionFailure` if the connection cannot be made. :Parameters: - `host` (optional): hostname or IPv4 address of the instance to connect to - `port` (optional): port number on which to connect - `pool_size` (optional): DEPRECATED - `auto_start_request` (optional): DEPRECATED - `slave_okay` (optional): is it okay to connect directly to and perform queries on a slave instance - `timeout` (optional): DEPRECATED - `network_timeout` (optional): timeout (in seconds) to use for socket operations - default is no timeout .. seealso:: :meth:`end_request` .. versionchanged:: 1.4 DEPRECATED The `pool_size`, `auto_start_request`, and `timeout` parameters. .. versionadded:: 1.1 The `network_timeout` parameter. .. mongodoc:: connections """ if host is None: host = self.HOST if port is None: port = self.PORT if pool_size is not None: warnings.warn( "The pool_size parameter to Connection is " "deprecated", DeprecationWarning) if auto_start_request is not None: warnings.warn( "The auto_start_request parameter to Connection " "is deprecated", DeprecationWarning) if timeout is not None: warnings.warn("The timeout parameter to Connection is deprecated", DeprecationWarning) if not isinstance(host, basestring): raise TypeError("host must be an instance of basestring") if not isinstance(port, int): raise TypeError("port must be an instance of int") self.__host = None self.__port = None self.__nodes = [(host, port)] self.__slave_okay = slave_okay self.__cursor_manager = CursorManager(self) self.__pool = Pool(self.__connect) self.__network_timeout = network_timeout # cache of existing indexes used by ensure_index ops self.__index_cache = {} if _connect: self.__find_master()
def __init__(self, host=None, port=None, max_pool_size=10, network_timeout=None, document_class=dict, tz_aware=False, _connect=True, **kwargs): """Create a new connection to a single MongoDB instance at *host:port*. The resultant connection object has connection-pooling built in. It also performs auto-reconnection when necessary. If an operation fails because of a connection error, :class:`~pymongo.errors.ConnectionFailure` is raised. If auto-reconnection will be performed, :class:`~pymongo.errors.AutoReconnect` will be raised. Application code should handle this exception (recognizing that the operation failed) and then continue to execute. Raises :class:`TypeError` if port is not an instance of ``int``. Raises :class:`~pymongo.errors.ConnectionFailure` if the connection cannot be made. The `host` parameter can be a full `mongodb URI <http://dochub.mongodb.org/core/connections>`_, in addition to a simple hostname. It can also be a list of hostnames or URIs. Any port specified in the host string(s) will override the `port` parameter. If multiple mongodb URIs containing database or auth information are passed, the last database, username, and password present will be used. :Parameters: - `host` (optional): hostname or IP address of the instance to connect to, or a mongodb URI, or a list of hostnames / mongodb URIs. If `host` is an IPv6 literal it must be enclosed in '[' and ']' characters following the RFC2732 URL syntax (e.g. '[::1]' for localhost) - `port` (optional): port number on which to connect - `max_pool_size` (optional): The maximum size limit for the connection pool. - `network_timeout` (optional): timeout (in seconds) to use for socket operations - default is no timeout - `document_class` (optional): default class to use for documents returned from queries on this connection - `tz_aware` (optional): if ``True``, :class:`~datetime.datetime` instances returned as values in a document by this :class:`Connection` will be timezone aware (otherwise they will be naive) Other optional parameters can be passed as keyword arguments: - `slave_okay` or `slaveok`: Is it OK to perform queries if this connection is to a secondary? - `safe`: Use getlasterror for each write operation? - `j`: Block until write operations have been commited to the journal. Ignored if the server is running without journaling. Implies safe=True. - `w`: If this is a replica set the server won't return until write operations have replicated to this many set members. Implies safe=True. - `wtimeout`: Used in conjunction with `j` and/or `w`. Wait this many milliseconds for journal acknowledgement and/or write replication. Implies safe=True. - `fsync`: Force the database to fsync all files before returning When used with `j` the server awaits the next group commit before returning. Implies safe=True. .. seealso:: :meth:`end_request` .. versionchanged:: 1.11+ `slave_okay` is a pure keyword argument. Added support for safe, and getlasterror options as keyword arguments. .. versionchanged:: 1.11 Added `max_pool_size`. Completely removed previously deprecated `pool_size`, `auto_start_request` and `timeout` parameters. .. versionchanged:: 1.8 The `host` parameter can now be a full `mongodb URI <http://dochub.mongodb.org/core/connections>`_, in addition to a simple hostname. It can also be a list of hostnames or URIs. .. versionadded:: 1.8 The `tz_aware` parameter. .. versionadded:: 1.7 The `document_class` parameter. .. versionchanged:: 1.4 DEPRECATED The `pool_size`, `auto_start_request`, and `timeout` parameters. .. versionadded:: 1.1 The `network_timeout` parameter. .. mongodoc:: connections """ super(Connection, self).__init__(**kwargs) if host is None: host = self.HOST if isinstance(host, basestring): host = [host] if port is None: port = self.PORT if not isinstance(port, int): raise TypeError("port must be an instance of int") nodes = set() username = None password = None db = None coll = None options = {} for entity in host: if "://" in entity: if entity.startswith("mongodb://"): res = uri_parser.parse_uri(entity, port) nodes.update(res["nodelist"]) username = res["username"] or username password = res["password"] or password db = res["database"] or db coll = res["collection"] or coll options = res["options"] else: idx = entity.find("://") raise InvalidURI("Invalid URI scheme: " "%s" % (entity[:idx], )) else: nodes.update(uri_parser.split_hosts(entity, port)) if not nodes: raise ConfigurationError("need to specify at least one host") self.__nodes = nodes self.__host = None self.__port = None if options: super(Connection, self)._set_options(**options) assert isinstance(max_pool_size, int), "max_pool_size must be an int" self.__max_pool_size = options.get("maxpoolsize") or max_pool_size if self.__max_pool_size < 0: raise ValueError("the maximum pool size must be >= 0") # TODO - Support using other options like w and fsync from URI self.__options = options # TODO - Support setting the collection from URI like the Java driver self.__collection = coll self.__cursor_manager = CursorManager(self) self.__network_timeout = network_timeout self.__pool = _Pool(self.__max_pool_size, self.__network_timeout) self.__last_checkout = time.time() self.__document_class = document_class self.__tz_aware = tz_aware # cache of existing indexes used by ensure_index ops self.__index_cache = {} if _connect: self.__find_node() if db and username is None: warnings.warn("must provide a username and password " "to authenticate to %s" % (db, )) if username: db = db or "admin" if not self[db].authenticate(username, password): raise ConfigurationError("authentication failed")
def __init__(self, host=None, port=None, max_pool_size=10, document_class=dict, tz_aware=False, _connect=True, **kwargs): """Create a new connection to a single MongoDB instance at *host:port*. The resultant connection object has connection-pooling built in. It also performs auto-reconnection when necessary. If an operation fails because of a connection error, :class:`~pymongo.errors.ConnectionFailure` is raised. If auto-reconnection will be performed, :class:`~pymongo.errors.AutoReconnect` will be raised. Application code should handle this exception (recognizing that the operation failed) and then continue to execute. Raises :class:`TypeError` if port is not an instance of ``int``. Raises :class:`~pymongo.errors.ConnectionFailure` if the connection cannot be made. The `host` parameter can be a full `mongodb URI <http://dochub.mongodb.org/core/connections>`_, in addition to a simple hostname. It can also be a list of hostnames or URIs. Any port specified in the host string(s) will override the `port` parameter. If multiple mongodb URIs containing database or auth information are passed, the last database, username, and password present will be used. For username and passwords reserved characters like ':', '/', '+' and '@' must be escaped following RFC 2396. :Parameters: - `host` (optional): hostname or IP address of the instance to connect to, or a mongodb URI, or a list of hostnames / mongodb URIs. If `host` is an IPv6 literal it must be enclosed in '[' and ']' characters following the RFC2732 URL syntax (e.g. '[::1]' for localhost) - `port` (optional): port number on which to connect - `max_pool_size` (optional): The maximum number of idle connections to keep open in the pool for future use - `document_class` (optional): default class to use for documents returned from queries on this connection - `tz_aware` (optional): if ``True``, :class:`~datetime.datetime` instances returned as values in a document by this :class:`MongoClient` will be timezone aware (otherwise they will be naive) **Other optional parameters can be passed as keyword arguments:** - `w`: (integer or string) If this is a replica set, write operations will block until they have been replicated to the specified number or tagged set of servers. `w=<int>` always includes the replica set primary (e.g. w=3 means write to the primary and wait until replicated to **two** secondaries). **Passing w=0 disables write acknowledgement and all other write concern options.** - `wtimeout`: (integer) Used in conjunction with `w`. Specify a value in milliseconds to control how long to wait for write propagation to complete. If replication does not complete in the given timeframe, a timeout exception is raised. - `j`: If ``True`` block until write operations have been committed to the journal. Ignored if the server is running without journaling. - `fsync`: If ``True`` force the database to fsync all files before returning. When used with `j` the server awaits the next group commit before returning. - `replicaSet`: (string) The name of the replica set to connect to. The driver will verify that the replica set it connects to matches this name. Implies that the hosts specified are a seed list and the driver should attempt to find all members of the set. - `socketTimeoutMS`: (integer) How long (in milliseconds) a send or receive on a socket can take before timing out. - `connectTimeoutMS`: (integer) How long (in milliseconds) a connection can take to be opened before timing out. - `ssl`: If ``True``, create the connection to the server using SSL. - `read_preference`: The read preference for this connection. See :class:`~pymongo.read_preferences.ReadPreference` for available options. - `auto_start_request`: If ``True``, each thread that accesses this :class:`MongoClient` has a socket allocated to it for the thread's lifetime. This ensures consistent reads, even if you read after an unacknowledged write. Defaults to ``False`` - `use_greenlets`: If ``True``, :meth:`start_request()` will ensure that the current greenlet uses the same socket for all operations until :meth:`end_request()` .. seealso:: :meth:`end_request` .. mongodoc:: connections .. versionadded:: 2.4 """ if host is None: host = self.HOST if isinstance(host, basestring): host = [host] if port is None: port = self.PORT if not isinstance(port, int): raise TypeError("port must be an instance of int") seeds = set() username = None password = None db = None opts = {} for entity in host: if "://" in entity: if entity.startswith("mongodb://"): res = uri_parser.parse_uri(entity, port) seeds.update(res["nodelist"]) username = res["username"] or username password = res["password"] or password db = res["database"] or db opts = res["options"] else: idx = entity.find("://") raise InvalidURI("Invalid URI scheme: " "%s" % (entity[:idx], )) else: seeds.update(uri_parser.split_hosts(entity, port)) if not seeds: raise ConfigurationError("need to specify at least one host") self.__nodes = seeds self.__host = None self.__port = None self.__is_primary = False self.__is_mongos = False options = {} for option, value in kwargs.iteritems(): option, value = common.validate(option, value) options[option] = value options.update(opts) self.__max_pool_size = common.validate_positive_integer( 'max_pool_size', max_pool_size) self.__cursor_manager = CursorManager(self) self.__repl = options.get('replicaset') if len(seeds) == 1 and not self.__repl: self.__direct = True else: self.__direct = False self.__nodes = set() self.__net_timeout = options.get('sockettimeoutms') self.__conn_timeout = options.get('connecttimeoutms') self.__use_ssl = options.get('ssl', False) if self.__use_ssl and not pool.have_ssl: raise ConfigurationError("The ssl module is not available. If you " "are using a python version previous to " "2.6 you must install the ssl package " "from PyPI.") if options.get('use_greenlets', False): if not pool.have_greenlet: raise ConfigurationError( "The greenlet module is not available. " "Install the greenlet package from PyPI.") self.pool_class = pool.GreenletPool else: self.pool_class = pool.Pool self.__pool = self.pool_class(None, self.__max_pool_size, self.__net_timeout, self.__conn_timeout, self.__use_ssl) self.__document_class = document_class self.__tz_aware = common.validate_boolean('tz_aware', tz_aware) self.__auto_start_request = options.get('auto_start_request', False) # cache of existing indexes used by ensure_index ops self.__index_cache = {} self.__auth_credentials = {} super(MongoClient, self).__init__(**options) if self.slave_okay: warnings.warn( "slave_okay is deprecated. Please " "use read_preference instead.", DeprecationWarning) if _connect: try: self.__find_node(seeds) except AutoReconnect, e: # ConnectionFailure makes more sense here than AutoReconnect raise ConnectionFailure(str(e))
def __init__(self, host=None, port=None, pool_size=None, auto_start_request=None, timeout=None, slave_okay=False, network_timeout=None, document_class=dict, tz_aware=False, _connect=True): """Create a new connection to a single MongoDB instance at *host:port*. The resultant connection object has connection-pooling built in. It also performs auto-reconnection when necessary. If an operation fails because of a connection error, :class:`~pymongo.errors.ConnectionFailure` is raised. If auto-reconnection will be performed, :class:`~pymongo.errors.AutoReconnect` will be raised. Application code should handle this exception (recognizing that the operation failed) and then continue to execute. Raises :class:`TypeError` if port is not an instance of ``int``. Raises :class:`~pymongo.errors.ConnectionFailure` if the connection cannot be made. The `host` parameter can be a full `mongodb URI <http://dochub.mongodb.org/core/connections>`_, in addition to a simple hostname. It can also be a list of hostnames or URIs. Any port specified in the host string(s) will override the `port` parameter. If multiple mongodb URIs containing database or auth information are passed, the last database, username, and password present will be used. :Parameters: - `host` (optional): hostname or IPv4 address of the instance to connect to, or a mongodb URI, or a list of hostnames / mongodb URIs - `port` (optional): port number on which to connect - `pool_size` (optional): DEPRECATED - `auto_start_request` (optional): DEPRECATED - `slave_okay` (optional): is it okay to connect directly to and perform queries on a slave instance - `timeout` (optional): DEPRECATED - `network_timeout` (optional): timeout (in seconds) to use for socket operations - default is no timeout - `document_class` (optional): default class to use for documents returned from queries on this connection - `tz_aware` (optional): if ``True``, :class:`~datetime.datetime` instances returned as values in a document by this :class:`Connection` will be timezone aware (otherwise they will be naive) .. seealso:: :meth:`end_request` .. versionchanged:: 1.8 The `host` parameter can now be a full `mongodb URI <http://dochub.mongodb.org/core/connections>`_, in addition to a simple hostname. It can also be a list of hostnames or URIs. .. versionadded:: 1.8 The `tz_aware` parameter. .. versionadded:: 1.7 The `document_class` parameter. .. versionchanged:: 1.4 DEPRECATED The `pool_size`, `auto_start_request`, and `timeout` parameters. .. versionadded:: 1.1 The `network_timeout` parameter. .. mongodoc:: connections """ if host is None: host = self.HOST if isinstance(host, basestring): host = [host] if port is None: port = self.PORT if not isinstance(port, int): raise TypeError("port must be an instance of int") nodes = set() database = None username = None password = None collection = None options = {} for uri in host: (n, db, u, p, coll, opts) = _parse_uri(uri, port) nodes.update(n) database = db or database username = u or username password = p or password collection = coll or collection options = opts or options if not nodes: raise ConfigurationError("need to specify at least one host") self.__nodes = nodes if database and username is None: raise InvalidURI("cannot specify database without " "a username and password") if pool_size is not None: warnings.warn( "The pool_size parameter to Connection is " "deprecated", DeprecationWarning) if auto_start_request is not None: warnings.warn( "The auto_start_request parameter to Connection " "is deprecated", DeprecationWarning) if timeout is not None: warnings.warn("The timeout parameter to Connection is deprecated", DeprecationWarning) self.__host = None self.__port = None for k in options.iterkeys(): # PYTHON-205 - Lets not break existing client code. if k in ("slaveOk", "slaveok"): self.__slave_okay = (options[k][0].upper() == 'T') break else: self.__slave_okay = slave_okay if slave_okay and len(self.__nodes) > 1: raise ConfigurationError("cannot specify slave_okay for a paired " "or replica set connection") # TODO - Support using other options like w and fsync from URI self.__options = options # TODO - Support setting the collection from URI as the Java driver does self.__collection = collection self.__cursor_manager = CursorManager(self) self.__pool = _Pool(self.__connect) self.__last_checkout = time.time() self.__network_timeout = network_timeout self.__document_class = document_class self.__tz_aware = tz_aware # cache of existing indexes used by ensure_index ops self.__index_cache = {} if _connect: self.__find_master() if username: database = database or "admin" if not self[database].authenticate(username, password): raise ConfigurationError("authentication failed")