def _list_collections(self, sock_info, slave_okay, criteria=None):
"""Internal listCollections helper."""
criteria = criteria or {}
cmd = SON([("listCollections", 1), ("cursor", {})])
if criteria:
cmd["filter"] = criteria
if sock_info.max_wire_version > 2:
coll = self["$cmd"]
cursor = self._command(sock_info, cmd, slave_okay)["cursor"]
return CommandCursor(coll, cursor, sock_info.address)
else:
coll = self["system.namespaces"]
res = _first_batch(sock_info, coll.database.name, coll.name,
criteria, 0, slave_okay,
CodecOptions(), ReadPreference.PRIMARY, cmd,
self.client._event_listeners)
data = res["data"]
cursor = {
"id": res["cursor_id"],
"firstBatch": data,
"ns": coll.full_name,
}
# Need to tell the cursor how many docs were in the first batch.
return CommandCursor(coll, cursor, sock_info.address, len(data))
def _list_collections(self, sock_info, slave_okay, criteria=None):
"""Internal listCollections helper."""
criteria = criteria or {}
cmd = SON([("listCollections", 1), ("cursor", {})])
if criteria:
cmd["filter"] = criteria
if sock_info.max_wire_version > 2:
coll = self["$cmd"]
cursor = self._command(sock_info, cmd, slave_okay)["cursor"]
return CommandCursor(coll, cursor, sock_info.address)
else:
coll = self["system.namespaces"]
res = _first_batch(sock_info, coll.database.name,
coll.name, criteria, 0, slave_okay,
CodecOptions(), ReadPreference.PRIMARY, cmd,
self.client._event_listeners)
data = res["data"]
cursor = {
"id": res["cursor_id"],
"firstBatch": data,
"ns": coll.full_name,
}
# Need to tell the cursor how many docs were in the first batch.
return CommandCursor(coll, cursor, sock_info.address, len(data))
def unlock(self):
"""Unlock a previously locked server.
"""
cmd = {"fsyncUnlock": 1}
with self._socket_for_writes() as sock_info:
if sock_info.max_wire_version >= 4:
try:
sock_info.command("admin", cmd)
except OperationFailure as exc:
# Ignore "DB not locked" to replicate old behavior
if exc.code != 125:
raise
else:
helpers._first_batch(sock_info, "admin", "$cmd.sys.unlock",
{}, -1, True, self.codec_options,
ReadPreference.PRIMARY, cmd, self._event_listeners)
def current_op(self, include_all=False):
"""Get information on operations currently running.
:Parameters:
- `include_all` (optional): if ``True`` also list currently
idle operations in the result
"""
cmd = SON([("currentOp", 1), ("$all", include_all)])
with self.__client._socket_for_writes() as sock_info:
if sock_info.max_wire_version >= 4:
return sock_info.command("admin", cmd)
else:
spec = {"$all": True} if include_all else {}
x = helpers._first_batch(sock_info, "admin", "$cmd.sys.inprog",
spec, -1, True, self.codec_options,
ReadPreference.PRIMARY, cmd, self.client._event_listeners)
return x.get('data', [None])[0]
def current_op(self, include_all=False):
"""Get information on operations currently running.
:Parameters:
- `include_all` (optional): if ``True`` also list currently
idle operations in the result
"""
cmd = SON([("currentOp", 1), ("$all", include_all)])
with self.__client._socket_for_writes() as sock_info:
if sock_info.max_wire_version >= 4:
return sock_info.command("admin", cmd)
else:
spec = {"$all": True} if include_all else {}
x = helpers._first_batch(sock_info, "admin", "$cmd.sys.inprog",
spec, -1, True, self.codec_options,
ReadPreference.PRIMARY, cmd, self.client._event_listeners)
return x.get('data', [None])[0]
def _list_collections(self, sock_info, slave_okay, criteria=None):
"""Internal listCollections helper."""
criteria = criteria or {}
if sock_info.max_wire_version > 2:
cmd = SON([("listCollections", 1), ("cursor", {})])
if criteria:
cmd["filter"] = criteria
coll = self["$cmd"]
cursor = self._command(sock_info, cmd, slave_okay)["cursor"]
else:
coll = self["system.namespaces"]
res = _first_batch(sock_info, coll.full_name,
criteria, 0, slave_okay,
CodecOptions(), ReadPreference.PRIMARY)
cursor = {
"id": res["cursor_id"],
"firstBatch": res["data"],
"ns": coll.full_name,
}
return CommandCursor(coll, cursor, sock_info.address)
def _list_collections(self, sock_info, slave_okay, criteria=None):
"""Internal listCollections helper."""
criteria = criteria or {}
if sock_info.max_wire_version > 2:
cmd = SON([("listCollections", 1), ("cursor", {})])
if criteria:
cmd["filter"] = criteria
coll = self["$cmd"]
cursor = self._command(sock_info, cmd, slave_okay)["cursor"]
else:
coll = self["system.namespaces"]
res = _first_batch(sock_info,
coll.full_name, criteria, 0, slave_okay,
CodecOptions(), ReadPreference.PRIMARY)
cursor = {
"id": res["cursor_id"],
"firstBatch": res["data"],
"ns": coll.full_name,
}
return CommandCursor(coll, cursor, sock_info.address)