/usr/lib/python2.7/dist-packages/PyTango/db.py is in python-pytango 8.1.5-1.
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# This file is part of PyTango (http://www.tinyurl.com/PyTango)
#
# Copyright 2006-2012 CELLS / ALBA Synchrotron, Bellaterra, Spain
# Copyright 2013-2014 European Synchrotron Radiation Facility, Grenoble, France
#
# Distributed under the terms of the GNU Lesser General Public License,
# either version 3 of the License, or (at your option) any later version.
# See LICENSE.txt for more info.
# ------------------------------------------------------------------------------
"""
This is an internal PyTango module.
"""
__all__ = ["db_init"]
__docformat__ = "restructuredtext"
import collections
from ._PyTango import StdStringVector, Database, DbDatum, DbData, \
DbDevInfo, DbDevInfos, DbDevImportInfo, DbDevExportInfo, DbDevExportInfos, \
DbHistory, DbServerInfo, DbServerData
from .utils import is_pure_str, is_non_str_seq, seq_2_StdStringVector, \
seq_2_DbDevInfos, seq_2_DbDevExportInfos, seq_2_DbData, DbData_2_dict
from .utils import document_method as __document_method
#-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-
# DbDatum extension
#-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-
def __DbDatum___setitem(self, k, v):
self.value_string[k] = v
def __DbDatum___delitem(self, k):
self.value_string.__delitem__(k)
def __DbDatum_append(self, v):
self.value_string.append(v)
def __DbDatum_extend(self, v):
self.value_string.extend(v)
def __DbDatum___imul(self, n):
self.value_string *= n
def __init_DbDatum():
DbDatum.__len__ = lambda self : len(self.value_string)
DbDatum.__getitem__ = lambda self, k : self.value_string[k]
DbDatum.__setitem__ = __DbDatum___setitem
DbDatum.__delitem__ = __DbDatum___delitem
DbDatum.__iter__ = lambda self : self.value_string.__iter__()
DbDatum.__contains__ = lambda self, v : self.value_string.__contains__(v)
DbDatum.__add__ = lambda self, seq : self.value_string + seq
DbDatum.__mul__ = lambda self, n : self.value_string * n
DbDatum.__imul__ = __DbDatum___imul
DbDatum.append = __DbDatum_append
DbDatum.extend = __DbDatum_extend
# DbDatum.__str__ = __DbDatum___str__
# DbDatum.__repr__ = __DbDatum___repr__
#-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-
# Database extension
#-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-
def __Database__add_server(self, servname, dev_info):
"""
add_server( self, servname, dev_info) -> None
Add a (group of) devices to the database.
Parameters :
- servname : (str) server name
- dev_info : (sequence<DbDevInfo> | DbDevInfos | DbDevInfo) containing the server device(s) information
Return : None
Throws : ConnectionFailed, CommunicationFailed, DevFailed from device (DB_SQLError)
"""
if not isinstance(dev_info, collections.Sequence) and \
not isinstance(dev_info, DbDevInfo):
raise TypeError('value must be a DbDevInfos, a seq<DbDevInfo> or ' \
'a DbDevInfo')
if isinstance(dev_info, DbDevInfos):
pass
elif isinstance(dev_info, DbDevInfo):
dev_info = seq_2_DbDevInfos((dev_info,))
else:
dev_info = seq_2_DbDevInfos(dev_info)
self._add_server(servname, dev_info)
def __Database__export_server(self, dev_info):
"""
export_server(self, dev_info) -> None
Export a group of devices to the database.
Parameters :
- devinfo : (sequence<DbDevExportInfo> | DbDevExportInfos | DbDevExportInfo)
containing the device(s) to export information
Return : None
Throws : ConnectionFailed, CommunicationFailed, DevFailed from device (DB_SQLError)
"""
if not isinstance(dev_info, collections.Sequence) and \
not isinstance(dev_info, DbDevExportInfo):
raise TypeError('value must be a DbDevExportInfos, a seq<DbDevExportInfo> or ' \
'a DbDevExportInfo')
if isinstance(dev_info, DbDevExportInfos):
pass
elif isinstance(dev_info, DbDevExportInfo):
dev_info = seq_2_DbDevExportInfos((dev_info),)
else:
dev_info = seq_2_DbDevExportInfos(dev_info)
self._export_server(dev_info)
def __Database__generic_get_property(self, obj_name, value, f):
"""internal usage"""
ret = None
if isinstance(value, DbData):
new_value = value
elif isinstance(value, DbDatum):
new_value = DbData()
new_value.append(value)
elif is_pure_str(value):
new_value = DbData()
new_value.append(DbDatum(value))
elif isinstance(value, collections.Sequence):
new_value = DbData()
for e in value:
if isinstance(e, DbDatum):
new_value.append(e)
else:
new_value.append(DbDatum(str(e)))
elif isinstance(value, collections.Mapping):
new_value = DbData()
for k, v in value.items():
if isinstance(v, DbDatum):
new_value.append(v)
else:
new_value.append(DbDatum(k))
ret = value
else:
raise TypeError('value must be a string, PyTango.DbDatum, '\
'PyTango.DbData, a sequence or a dictionary')
f(obj_name, new_value)
if ret is None: ret = {}
return DbData_2_dict(new_value, ret)
def __Database__generic_put_property(self, obj_name, value, f):
"""internal usage"""
if isinstance(value, DbData):
pass
elif isinstance(value, DbDatum):
new_value = DbData()
new_value.append(value)
value = new_value
elif is_non_str_seq(value):
new_value = seq_2_DbData(value)
elif isinstance(value, collections.Mapping):
new_value = DbData()
for k, v in value.items():
if isinstance(v, DbDatum):
new_value.append(v)
continue
db_datum = DbDatum(k)
if is_non_str_seq(v):
seq_2_StdStringVector(v, db_datum.value_string)
else:
db_datum.value_string.append(str(v))
new_value.append(db_datum)
value = new_value
else:
raise TypeError('value must be a PyTango.DbDatum, PyTango.DbData,'\
'a sequence<DbDatum> or a dictionary')
return f(obj_name, value)
def __Database__generic_delete_property(self, obj_name, value, f):
"""internal usage"""
if isinstance(value, DbData):
new_value = value
elif isinstance(value, DbDatum):
new_value = DbData()
new_value.append(value)
elif is_pure_str(value):
new_value = DbData()
new_value.append(DbDatum(value))
elif isinstance(value, collections.Sequence):
new_value = DbData()
for e in value:
if isinstance(e, DbDatum):
new_value.append(e)
else:
new_value.append(DbDatum(str(e)))
elif isinstance(value, collections.Mapping):
new_value = DbData()
for k, v in value.items():
if isinstance(v, DbDatum):
new_value.append(v)
else:
new_value.append(DbDatum(k))
else:
raise TypeError('value must be a string, PyTango.DbDatum, '\
'PyTango.DbData, a sequence or a dictionary')
return f(obj_name, new_value)
def __Database__put_property(self, obj_name, value):
"""
put_property(self, obj_name, value) -> None
Insert or update a list of properties for the specified object.
Parameters :
- obj_name : (str) object name
- value : can be one of the following:
1. DbDatum - single property data to be inserted
2. DbData - several property data to be inserted
3. sequence<DbDatum> - several property data to be inserted
4. dict<str, DbDatum> - keys are property names and value has data to be inserted
5. dict<str, obj> - keys are property names and str(obj) is property value
6. dict<str, seq<str>> - keys are property names and value has data to be inserted
Return : None
Throws : ConnectionFailed, CommunicationFailed, DevFailed from device (DB_SQLError)"""
return __Database__generic_put_property(self, obj_name, value, self._put_property)
def __Database__get_property(self, obj_name, value):
"""
get_property(self, obj_name, value) -> dict<str, seq<str>>
Query the database for a list of object (i.e non-device) properties.
Parameters :
- obj_name : (str) object name
- value : can be one of the following:
1. str [in] - single property data to be fetched
2. DbDatum [in] - single property data to be fetched
3. DbData [in,out] - several property data to be fetched
In this case (direct C++ API) the DbData will be filled with
the property values
4. sequence<str> [in] - several property data to be fetched
5. sequence<DbDatum> [in] - several property data to be fetched
6. dict<str, obj> [in,out] - keys are property names
In this case the given dict values will be changed to contain
the several property values
Return : a dictionary which keys are the property names the value
associated with each key being a a sequence of strings being
the property value.
Throws : ConnectionFailed, CommunicationFailed, DevFailed from device (DB_SQLError)"""
return __Database__generic_get_property(self, obj_name, value, self._get_property)
def __Database__get_property_forced(self, obj_name, value):
return __Database__generic_get_property(self, obj_name, value, self._get_property_forced)
__Database__get_property_forced.__doc__ = __Database__get_property.__doc__
def __Database__delete_property(self, obj_name, value):
"""
delete_property(self, obj_name, value) -> None
Delete a the given of properties for the specified object.
Parameters :
- obj_name : (str) object name
- value : can be one of the following:
1. str [in] - single property data to be deleted
2. DbDatum [in] - single property data to be deleted
3. DbData [in] - several property data to be deleted
4. sequence<string> [in]- several property data to be deleted
5. sequence<DbDatum> [in] - several property data to be deleted
6. dict<str, obj> [in] - keys are property names to be deleted
(values are ignored)
7. dict<str, DbDatum> [in] - several DbDatum.name are property names
to be deleted (keys are ignored)
Return : None
Throws : ConnectionFailed, CommunicationFailed, DevFailed from device (DB_SQLError)"""
return __Database__generic_delete_property(self, obj_name, value, self._delete_property)
def __Database__get_device_property(self, dev_name, value):
"""
get_device_property(self, dev_name, value) -> dict<str, seq<str>>
Query the database for a list of device properties.
Parameters :
- dev_name : (str) object name
- value : can be one of the following:
1. str [in] - single property data to be fetched
2. DbDatum [in] - single property data to be fetched
3. DbData [in,out] - several property data to be fetched
In this case (direct C++ API) the DbData will be filled with
the property values
4. sequence<str> [in] - several property data to be fetched
5. sequence<DbDatum> [in] - several property data to be fetched
6. dict<str, obj> [in,out] - keys are property names
In this case the given dict values will be changed to contain
the several property values
Return : a dictionary which keys are the property names the value
associated with each key being a a sequence of strings being the
property value.
Throws : ConnectionFailed, CommunicationFailed, DevFailed from device (DB_SQLError)"""
return __Database__generic_get_property(self, dev_name, value, self._get_device_property)
def __Database__put_device_property(self, dev_name, value):
"""
put_device_property(self, dev_name, value) -> None
Insert or update a list of properties for the specified device.
Parameters :
- dev_name : (str) object name
- value : can be one of the following:
1. DbDatum - single property data to be inserted
2. DbData - several property data to be inserted
3. sequence<DbDatum> - several property data to be inserted
4. dict<str, DbDatum> - keys are property names and value has data to be inserted
5. dict<str, obj> - keys are property names and str(obj) is property value
6. dict<str, seq<str>> - keys are property names and value has data to be inserted
Return : None
Throws : ConnectionFailed, CommunicationFailed, DevFailed from device (DB_SQLError)"""
return __Database__generic_put_property(self, dev_name, value, self._put_device_property)
def __Database__delete_device_property(self, dev_name, value):
"""
delete_device_property(self, dev_name, value) -> None
Delete a the given of properties for the specified device.
Parameters :
- dev_name : (str) object name
- value : can be one of the following:
1. str [in] - single property data to be deleted
2. DbDatum [in] - single property data to be deleted
3. DbData [in] - several property data to be deleted
4. sequence<str> [in]- several property data to be deleted
5. sequence<DbDatum> [in] - several property data to be deleted
6. dict<str, obj> [in] - keys are property names to be deleted (values are ignored)
7. dict<str, DbDatum> [in] - several DbDatum.name are property names to be deleted (keys are ignored)
Return : None
Throws : ConnectionFailed, CommunicationFailed, DevFailed from device (DB_SQLError)"""
return __Database__generic_delete_property(self, dev_name, value, self._delete_device_property)
def __Database__get_device_property_list(self, dev_name, wildcard, array=None):
"""
get_device_property_list(self, dev_name, wildcard, array=None) -> DbData
Query the database for a list of properties defined for the
specified device and which match the specified wildcard.
If array parameter is given, it must be an object implementing de 'append'
method. If given, it is filled with the matching property names. If not given
the method returns a new DbDatum containing the matching property names.
New in PyTango 7.0.0
Parameters :
- dev_name : (str) device name
- wildcard : (str) property name wildcard
- array : [out] (sequence) (optional) array that
will contain the matching property names.
Return : if container is None, return is a new DbDatum containing the
matching property names. Otherwise returns the given array
filled with the property names
Throws : ConnectionFailed, CommunicationFailed, DevFailed from device"""
if array is None:
return self._get_device_property_list(dev_name, wildcard)
elif isinstance(array, StdStringVector):
return self._get_device_property_list(dev_name, wildcard, array)
elif is_non_str_seq(array):
res = self._get_device_property_list(dev_name, wildcard)
for e in res: array.append(e)
return array
def __Database__get_device_attribute_property(self, dev_name, value):
"""
get_device_attribute_property(self, dev_name, value) -> dict<str, dict<str, seq<str>>>
Query the database for a list of device attribute properties for the
specified device. The method returns all the properties for the specified
attributes.
Parameters :
- dev_name : (string) device name
- value : can be one of the following:
1. str [in] - single attribute properties to be fetched
2. DbDatum [in] - single attribute properties to be fetched
3. DbData [in,out] - several attribute properties to be fetched
In this case (direct C++ API) the DbData will be filled with
the property values
4. sequence<str> [in] - several attribute properties to be fetched
5. sequence<DbDatum> [in] - several attribute properties to be fetched
6. dict<str, obj> [in,out] - keys are attribute names
In this case the given dict values will be changed to contain the
several attribute property values
Return : a dictionary which keys are the attribute names the
value associated with each key being a another
dictionary where keys are property names and value is
a DbDatum containing the property value.
Throws : ConnectionFailed, CommunicationFailed, DevFailed from device (DB_SQLError)"""
ret = None
if isinstance(value, DbData):
new_value = value
elif isinstance(value, DbDatum):
new_value = DbData()
new_value.append(value)
elif is_pure_str(value):
new_value = DbData()
new_value.append(DbDatum(value))
elif isinstance(value, collections.Sequence):
new_value = DbData()
for e in value:
if isinstance(e, DbDatum):
new_value.append(e)
else:
new_value.append(DbDatum(str(e)))
elif isinstance(value, collections.Mapping):
new_value = DbData()
for k, v in value.items():
if isinstance(v, DbDatum):
new_value.append(v)
else:
new_value.append(DbDatum(k))
else:
raise TypeError('value must be a string, PyTango.DbDatum, '\
'PyTango.DbData, a sequence or a dictionary')
if ret is None: ret = {}
self._get_device_attribute_property(dev_name, new_value)
nb_items = len(new_value)
i = 0
while i < nb_items:
db_datum = new_value[i]
curr_dict = {}
ret[db_datum.name] = curr_dict
nb_props = int(db_datum[0])
i += 1
for k in range(nb_props):
db_datum = new_value[i]
curr_dict[db_datum.name] = db_datum.value_string
i += 1
return ret
def __Database__put_device_attribute_property(self, dev_name, value):
"""
put_device_attribute_property( self, dev_name, value) -> None
Insert or update a list of properties for the specified device.
Parameters :
- dev_name : (str) device name
- value : can be one of the following:
1. DbData - several property data to be inserted
2. sequence<DbDatum> - several property data to be inserted
3. dict<str, dict<str, obj>> keys are attribute names and value being another
dictionary which keys are the attribute property names and the value
associated with each key being:
3.1 seq<str>
3.2 PyTango.DbDatum
Return : None
Throws : ConnectionFailed, CommunicationFailed, DevFailed from device (DB_SQLError)"""
if isinstance(value, DbData):
pass
elif is_non_str_seq(value):
new_value = seq_2_DbData(value)
elif isinstance(value, collections.Mapping):
new_value = DbData()
for k1, v1 in value.items():
attr = DbDatum(k1)
attr.append(str(len(v1)))
new_value.append(attr)
for k2, v2 in v1.items():
if isinstance(v2, DbDatum):
new_value.append(v2)
continue
db_datum = DbDatum(k2)
if is_non_str_seq(v2):
seq_2_StdStringVector(v2, db_datum.value_string)
else:
if not is_pure_str(v2):
v2 = repr(v2)
db_datum.value_string.append(v2)
new_value.append(db_datum)
value = new_value
else:
raise TypeError('value must be a PyTango.DbData,'\
'a sequence<DbDatum> or a dictionary')
return self._put_device_attribute_property(dev_name, value)
def __Database__delete_device_attribute_property(self, dev_name, value):
"""
delete_device_attribute_property(self, dev_name, value) -> None
Delete a list of attribute properties for the specified device.
Parameters :
- devname : (string) device name
- propnames : can be one of the following:
1. DbData [in] - several property data to be deleted
2. sequence<str> [in]- several property data to be deleted
3. sequence<DbDatum> [in] - several property data to be deleted
3. dict<str, seq<str>> keys are attribute names and value being a list of attribute property names
Return : None
Throws : ConnectionFailed, CommunicationFailed, DevFailed from device (DB_SQLError)"""
if isinstance(value, DbData):
new_value = value
elif is_non_str_seq(value):
new_value = seq_2_DbData(value)
elif isinstance(value, collections.Mapping):
new_value = DbData()
for k1, v1 in value.items():
attr = DbDatum(k1)
attr.append(str(len(v1)))
new_value.append(attr)
for k2 in v1:
new_value.append(DbDatum(k2))
else:
raise TypeError('value must be a string, PyTango.DbDatum, '\
'PyTango.DbData, a sequence or a dictionary')
return self._delete_device_attribute_property(dev_name, new_value)
def __Database__get_class_property(self, class_name, value):
"""
get_class_property(self, class_name, value) -> dict<str, seq<str>>
Query the database for a list of class properties.
Parameters :
- class_name : (str) class name
- value : can be one of the following:
1. str [in] - single property data to be fetched
2. PyTango.DbDatum [in] - single property data to be fetched
3. PyTango.DbData [in,out] - several property data to be fetched
In this case (direct C++ API) the DbData will be filled with
the property values
4. sequence<str> [in] - several property data to be fetched
5. sequence<DbDatum> [in] - several property data to be fetched
6. dict<str, obj> [in,out] - keys are property names
In this case the given dict values will be changed to contain
the several property values
Return : a dictionary which keys are the property names the value
associated with each key being a a sequence of strings being the
property value.
Throws : ConnectionFailed, CommunicationFailed, DevFailed from device (DB_SQLError)"""
return __Database__generic_get_property(self, class_name, value, self._get_class_property)
def __Database__put_class_property(self, class_name, value):
"""
put_class_property(self, class_name, value) -> None
Insert or update a list of properties for the specified class.
Parameters :
- class_name : (str) class name
- value : can be one of the following:
1. DbDatum - single property data to be inserted
2. DbData - several property data to be inserted
3. sequence<DbDatum> - several property data to be inserted
4. dict<str, DbDatum> - keys are property names and value has data to be inserted
5. dict<str, obj> - keys are property names and str(obj) is property value
6. dict<str, seq<str>> - keys are property names and value has data to be inserted
Return : None
Throws : ConnectionFailed, CommunicationFailed, DevFailed from device (DB_SQLError)"""
return __Database__generic_put_property(self, class_name, value, self._put_class_property)
def __Database__delete_class_property(self, class_name, value):
"""
delete_class_property(self, class_name, value) -> None
Delete a the given of properties for the specified class.
Parameters :
- class_name : (str) class name
- value : can be one of the following:
1. str [in] - single property data to be deleted
2. DbDatum [in] - single property data to be deleted
3. DbData [in] - several property data to be deleted
4. sequence<str> [in]- several property data to be deleted
5. sequence<DbDatum> [in] - several property data to be deleted
6. dict<str, obj> [in] - keys are property names to be deleted
(values are ignored)
7. dict<str, DbDatum> [in] - several DbDatum.name are property names
to be deleted (keys are ignored)
Return : None
Throws : ConnectionFailed, CommunicationFailed, DevFailed from device (DB_SQLError)"""
return __Database__generic_delete_property(self, class_name, value, self._delete_class_property)
def __Database__get_class_attribute_property(self, class_name, value):
"""
get_class_attribute_property( self, class_name, value) -> dict<str, dict<str, seq<str>>
Query the database for a list of class attribute properties for the
specified class. The method returns all the properties for the specified
attributes.
Parameters :
- class_name : (str) class name
- propnames : can be one of the following:
1. str [in] - single attribute properties to be fetched
2. DbDatum [in] - single attribute properties to be fetched
3. DbData [in,out] - several attribute properties to be fetched
In this case (direct C++ API) the DbData will be filled with the property
values
4. sequence<str> [in] - several attribute properties to be fetched
5. sequence<DbDatum> [in] - several attribute properties to be fetched
6. dict<str, obj> [in,out] - keys are attribute names
In this case the given dict values will be changed to contain the several
attribute property values
Return : a dictionary which keys are the attribute names the
value associated with each key being a another
dictionary where keys are property names and value is
a sequence of strings being the property value.
Throws : ConnectionFailed, CommunicationFailed, DevFailed from device (DB_SQLError)"""
ret = None
if isinstance(value, DbData):
new_value = value
elif isinstance(value, DbDatum):
new_value = DbData()
new_value.append(value)
elif is_pure_str(value):
new_value = DbData()
new_value.append(DbDatum(value))
elif isinstance(value, collections.Sequence):
new_value = DbData()
for e in value:
if isinstance(e, DbDatum):
new_value.append(e)
else:
new_value.append(DbDatum(str(e)))
elif isinstance(value, collections.Mapping):
new_value = DbData()
for k, v in value.items():
if isinstance(v, DbDatum):
new_value.append(v)
else:
new_value.append(DbDatum(k))
else:
raise TypeError('value must be a string, PyTango.DbDatum, '\
'PyTango.DbData, a sequence or a dictionary')
self._get_class_attribute_property(class_name, new_value)
if ret is None: ret = {}
nb_items = len(new_value)
i = 0
while i < nb_items:
db_datum = new_value[i]
curr_dict = {}
ret[db_datum.name] = curr_dict
nb_props = int(db_datum[0])
i += 1
for k in range(nb_props):
db_datum = new_value[i]
curr_dict[db_datum.name] = db_datum.value_string
i += 1
return ret
def __Database__put_class_attribute_property(self, class_name, value):
"""
put_class_attribute_property(self, class_name, value) -> None
Insert or update a list of properties for the specified class.
Parameters :
- class_name : (str) class name
- propdata : can be one of the following:
1. PyTango.DbData - several property data to be inserted
2. sequence<DbDatum> - several property data to be inserted
3. dict<str, dict<str, obj>> keys are attribute names and value
being another dictionary which keys are the attribute property
names and the value associated with each key being:
3.1 seq<str>
3.2 PyTango.DbDatum
Return : None
Throws : ConnectionFailed, CommunicationFailed, DevFailed from device (DB_SQLError)"""
if isinstance(value, DbData):
pass
elif is_non_str_seq(value):
new_value = seq_2_DbData(value)
elif isinstance(value, collections.Mapping):
new_value = DbData()
for k1, v1 in value.items():
attr = DbDatum(k1)
attr.append(str(len(v1)))
new_value.append(attr)
for k2, v2 in v1.items():
if isinstance(v2, DbDatum):
new_value.append(v2)
continue
db_datum = DbDatum(k2)
if is_non_str_seq(v2):
seq_2_StdStringVector(v2, db_datum.value_string)
else:
db_datum.value_string.append(str(v2))
new_value.append(db_datum)
value = new_value
else:
raise TypeError('value must be a PyTango.DbData,'\
'a sequence<DbDatum> or a dictionary')
return self._put_class_attribute_property(class_name, value)
def __Database__delete_class_attribute_property(self, class_name, value):
"""
delete_class_attribute_property(self, class_name, value) -> None
Delete a list of attribute properties for the specified class.
Parameters :
- class_name : (str) class name
- propnames : can be one of the following:
1. DbData [in] - several property data to be deleted
2. sequence<str> [in]- several property data to be deleted
3. sequence<DbDatum> [in] - several property data to be deleted
4. dict<str, seq<str>> keys are attribute names and value being a
list of attribute property names
Return : None
Throws : ConnectionFailed, CommunicationFailed
DevFailed from device (DB_SQLError)"""
if isinstance(value, DbData):
new_value = value
elif is_non_str_seq(value):
new_value = seq_2_DbData(value)
elif isinstance(value, collections.Mapping):
new_value = DbData()
for k1, v1 in value.items():
attr = DbDatum(k1)
attr.append(str(len(v1)))
new_value.append(attr)
for k2 in v1:
new_value.append(DbDatum(k2))
else:
raise TypeError('value must be a DbDatum, DbData, '\
'a sequence or a dictionary')
return self._delete_class_attribute_property(class_name, new_value)
def __Database__get_service_list(self, filter='.*'):
import re
data = self.get_property('CtrlSystem', 'Services')
res = {}
filter_re = re.compile(filter)
for service in data['Services']:
service_name, service_value = service.split(':')
if not filter_re.match(service_name) is None:
res[service_name] = service_value
return res
def __Database__str(self):
return "Database(%s, %s)" % (self.get_db_host(), self.get_db_port())
def __init_Database():
Database.add_server = __Database__add_server
Database.export_server = __Database__export_server
Database.put_property = __Database__put_property
Database.get_property = __Database__get_property
Database.get_property_forced = __Database__get_property_forced
Database.delete_property = __Database__delete_property
Database.get_device_property = __Database__get_device_property
Database.put_device_property = __Database__put_device_property
Database.delete_device_property = __Database__delete_device_property
Database.get_device_property_list = __Database__get_device_property_list
Database.get_device_attribute_property = __Database__get_device_attribute_property
Database.put_device_attribute_property = __Database__put_device_attribute_property
Database.delete_device_attribute_property = __Database__delete_device_attribute_property
Database.get_class_property = __Database__get_class_property
Database.put_class_property = __Database__put_class_property
Database.delete_class_property = __Database__delete_class_property
Database.get_class_attribute_property = __Database__get_class_attribute_property
Database.put_class_attribute_property = __Database__put_class_attribute_property
Database.delete_class_attribute_property = __Database__delete_class_attribute_property
Database.get_service_list = __Database__get_service_list
Database.__str__ = __Database__str
Database.__repr__ = __Database__str
def __doc_Database():
def document_method(method_name, desc, append=True):
return __document_method(Database, method_name, desc, append)
Database.__doc__ = """
Database is the high level Tango object which contains the link to the static database.
Database provides methods for all database commands : get_device_property(),
put_device_property(), info(), etc..
To create a Database, use the default constructor. Example::
db = Database()
The constructor uses the TANGO_HOST env. variable to determine which
instance of the Database to connect to."""
document_method("write_filedatabase", """
write_filedatabase(self) -> None
Force a write to the file if using a file based database.
Parameters : None
Return : None
New in PyTango 7.0.0
""" )
document_method("reread_filedatabase", """
reread_filedatabase(self) -> None
Force a complete refresh over the database if using a file based database.
Parameters : None
Return : None
New in PyTango 7.0.0
""" )
document_method("build_connection", """
build_connection(self) -> None
Tries to build a connection to the Database server.
Parameters : None
Return : None
New in PyTango 7.0.0
""" )
document_method("check_tango_host", """
check_tango_host(self, tango_host_env) -> None
Check the TANGO_HOST environment variable syntax and extract
database server host(s) and port(s) from it.
Parameters :
- tango_host_env : (str) The TANGO_HOST env. variable value
Return : None
New in PyTango 7.0.0
""" )
document_method("check_access_control", """
check_access_control(self, dev_name) -> AccessControlType
Check the access for the given device for this client.
Parameters :
- dev_name : (str) device name
Return : the access control type as a AccessControlType object
New in PyTango 7.0.0
""" )
document_method("is_control_access_checked", """
is_control_access_checked(self) -> bool
Returns True if control access is checked or False otherwise.
Parameters : None
Return : (bool) True if control access is checked or False
New in PyTango 7.0.0
""" )
document_method("set_access_checked", """
set_access_checked(self, val) -> None
Sets or unsets the control access check.
Parameters :
- val : (bool) True to set or False to unset the access control
Return : None
New in PyTango 7.0.0
""" )
document_method("get_access_except_errors", """
get_access_except_errors(self) -> DevErrorList
Returns a reference to the control access exceptions.
Parameters : None
Return : DevErrorList
New in PyTango 7.0.0
""" )
document_method("is_multi_tango_host", """
is_multi_tango_host(self) -> bool
Returns if in multi tango host.
Parameters : None
Return : True if multi tango host or False otherwise
New in PyTango 7.1.4
""" )
document_method("get_file_name", """
get_file_name(self) -> str
Returns the database file name or throws an exception
if not using a file database
Parameters : None
Return : a string containing the database file name
Throws : DevFailed
New in PyTango 7.2.0
""" )
document_method("get_info", """
get_info(self) -> str
Query the database for some general info about the tables.
Parameters : None
Return : a multiline string
""" )
document_method("get_host_list", """
get_host_list(self) -> DbDatum
get_host_list(self, wildcard) -> DbDatum
Returns the list of all host names registered in the database.
Parameters :
- wildcard : (str) (optional) wildcard (eg: 'l-c0*')
Return : DbDatum with the list of registered host names
""" )
document_method("get_services", """
get_services(self, serv_name, inst_name) -> DbDatum
Query database for specified services.
Parameters :
- serv_name : (str) service name
- inst_name : (str) instance name (can be a wildcard character ('*'))
Return : DbDatum with the list of available services
New in PyTango 3.0.4
""" )
document_method("get_device_service_list", """
get_device_service_list(self, dev_name) -> DbDatum
Query database for the list of services provided by the given device.
Parameters :
- dev_name : (str) device name
Return : DbDatum with the list of services
New in PyTango 8.1.0
""" )
document_method("register_service", """
register_service(self, serv_name, inst_name, dev_name) -> None
Register the specified service wihtin the database.
Parameters :
- serv_name : (str) service name
- inst_name : (str) instance name
- dev_name : (str) device name
Return : None
New in PyTango 3.0.4
""" )
document_method("unregister_service", """
unregister_service(self, serv_name, inst_name) -> None
Unregister the specified service from the database.
Parameters :
- serv_name : (str) service name
- inst_name : (str) instance name
Return : None
New in PyTango 3.0.4
""" )
document_method("add_device", """
add_device(self, dev_info) -> None
Add a device to the database. The device name, server and class
are specified in the DbDevInfo structure
Example :
dev_info = DbDevInfo()
dev_info.name = 'my/own/device'
dev_info._class = 'MyDevice'
dev_info.server = 'MyServer/test'
db.add_device(dev_info)
Parameters :
- dev_info : (DbDevInfo) device information
Return : None
""" )
document_method("delete_device", """
delete_device(self, dev_name) -> None
Delete the device of the specified name from the database.
Parameters :
- dev_name : (str) device name
Return : None
""" )
document_method("import_device", """
import_device(self, dev_name) -> DbDevImportInfo
Query the databse for the export info of the specified device.
Example :
dev_imp_info = db.import_device('my/own/device')
print(dev_imp_info.name)
print(dev_imp_info.exported)
print(dev_imp_info.ior)
print(dev_imp_info.version)
Parameters :
- dev_name : (str) device name
Return : DbDevImportInfo
""" )
document_method("get_device_info", """
get_device_info(self, dev_name) -> DbDevFullInfo
Query the databse for the full info of the specified device.
Example :
dev_info = db.get_device_info('my/own/device')
print(dev_info.name)
print(dev_info.class_name)
print(dev_info.ds_full_name)
print(dev_info.exported)
print(dev_info.ior)
print(dev_info.version)
print(dev_info.pid)
print(dev_info.started_date)
print(dev_info.stopped_date)
Parameters :
- dev_name : (str) device name
Return : DbDevFullInfo
New in PyTango 8.1.0
""" )
document_method("export_device", """
export_device(self, dev_export) -> None
Update the export info for this device in the database.
Example :
dev_export = DbDevExportInfo()
dev_export.name = 'my/own/device'
dev_export.ior = <the real ior>
dev_export.host = <the host>
dev_export.version = '3.0'
dev_export.pid = '....'
db.export_device(dev_export)
Parameters :
- dev_export : (DbDevExportInfo) export information
Return : None
""" )
document_method("unexport_device", """
unexport_device(self, dev_name) -> None
Mark the specified device as unexported in the database
Example :
db.unexport_device('my/own/device')
Parameters :
- dev_name : (str) device name
Return : None
""" )
document_method("get_device_name", """
get_device_name(self, serv_name, class_name) -> DbDatum
Query the database for a list of devices served by a server for
a given device class
Parameters :
- serv_name : (str) server name
- class_name : (str) device class name
Return : DbDatum with the list of device names
""" )
document_method("get_device_exported", """
get_device_exported(self, filter) -> DbDatum
Query the database for a list of exported devices whose names
satisfy the supplied filter (* is wildcard for any character(s))
Parameters :
- filter : (str) device name filter (wildcard)
Return : DbDatum with the list of exported devices
""" )
document_method("get_device_domain", """
get_device_domain(self, wildcard) -> DbDatum
Query the database for a list of of device domain names which
match the wildcard provided (* is wildcard for any character(s)).
Domain names are case insensitive.
Parameters :
- wildcard : (str) domain filter
Return : DbDatum with the list of device domain names
""" )
document_method("get_device_family", """
get_device_family(self, wildcard) -> DbDatum
Query the database for a list of of device family names which
match the wildcard provided (* is wildcard for any character(s)).
Family names are case insensitive.
Parameters :
- wildcard : (str) family filter
Return : DbDatum with the list of device family names
""" )
document_method("get_device_member", """
get_device_member(self, wildcard) -> DbDatum
Query the database for a list of of device member names which
match the wildcard provided (* is wildcard for any character(s)).
Member names are case insensitive.
Parameters :
- wildcard : (str) member filter
Return : DbDatum with the list of device member names
""" )
document_method("get_device_alias", """
get_device_alias(self, alias) -> str
Get the device name from an alias.
Parameters :
- alias : (str) alias
Return : device name
.. deprecated:: 8.1.0
Use :meth:`~PyTango.Database.get_device_from_alias` instead
""" )
document_method("get_alias", """
get_alias(self, alias) -> str
Get the device alias name from its name.
Parameters :
- alias : (str) device name
Return : alias
New in PyTango 3.0.4
.. deprecated:: 8.1.0
Use :meth:`~PyTango.Database.get_alias_from_device` instead
""" )
document_method("get_device_from_alias", """
get_device_from_alias(self, alias) -> str
Get the device name from an alias.
Parameters :
- alias : (str) alias
Return : device name
New in PyTango 8.1.0
""" )
document_method("get_alias_from_device", """
get_alias_from_device(self, alias) -> str
Get the device alias name from its name.
Parameters :
- alias : (str) device name
Return : alias
New in PyTango 8.1.0
""" )
document_method("get_device_alias_list", """
get_device_alias_list(self, filter) -> DbDatum
Get device alias list. The parameter alias is a string to filter
the alias list returned. Wildcard (*) is supported.
Parameters :
- filter : (str) a string with the alias filter (wildcard (*) is supported)
Return : DbDatum with the list of device names
New in PyTango 7.0.0
""" )
document_method("get_class_for_device", """
get_class_for_device(self, dev_name) -> str
Return the class of the specified device.
Parameters :
- dev_name : (str) device name
Return : a string containing the device class
""" )
document_method("get_class_inheritance_for_device", """
get_class_inheritance_for_device(self, dev_name) -> DbDatum
Return the class inheritance scheme of the specified device.
Parameters :
- devn_ame : (str) device name
Return : DbDatum with the inheritance class list
New in PyTango 7.0.0
""" )
document_method("get_class_for_device", """
get_class_for_device(self, dev_name) -> str
Return the class of the specified device.
Parameters :
- dev_name : (str) device name
Return : a string containing the device class
""" )
document_method("get_device_exported_for_class", """
get_device_exported_for_class(self, class_name) -> DbDatum
Query database for list of exported devices for the specified class.
Parameters :
- class_name : (str) class name
Return : DbDatum with the list of exported devices for the
New in PyTango 7.0.0
""" )
document_method("put_device_alias", """
put_device_alias(self, dev_name, alias) -> None
Query database for list of exported devices for the specified class.
Parameters :
- dev_name : (str) device name
- alias : (str) alias name
Return : None
""" )
document_method("delete_device_alias", """
delete_device_alias(self, alias) -> void
Delete a device alias
Parameters :
- alias : (str) alias name
Return : None
""" )
document_method("_add_server", """
_add_server(self, serv_name, dev_info) -> None
Add a a group of devices to the database.
This corresponds to the pure C++ API call.
Parameters :
- serv_name : (str) server name
- dev_info : (DbDevInfos) server device(s) information
Return : None
""" )
document_method("delete_server", """
delete_server(self, server) -> None
Delete the device server and its associated devices from database.
Parameters :
- server : (str) name of the server to be deleted with
format: <server name>/<instance>
Return : None
""" )
document_method("_export_server", """
_export_server(self, dev_info) -> None
Export a group of devices to the database.
This corresponds to the pure C++ API call.
Parameters :
- dev_info : (DbDevExportInfos) device(s) to export information
Return : None
Throws : ConnectionFailed, CommunicationFailed, DevFailed from device (DB_SQLError)
""" )
document_method("unexport_server", """
unexport_server(self, server) -> None
Mark all devices exported for this server as unexported.
Parameters :
- server : (str) name of the server to be unexported with
format: <server name>/<instance>
Return : None
Throws : ConnectionFailed, CommunicationFailed, DevFailed from device (DB_SQLError)
""" )
document_method("rename_server", """
rename_server(self, old_ds_name, new_ds_name) -> None
Rename a device server process.
Parameters :
- old_ds_name : (str) old name
- new_ds_name : (str) new name
Return : None
Throws : ConnectionFailed, CommunicationFailed, DevFailed from device (DB_SQLError)
New in PyTango 8.1.0
""" )
document_method("get_server_info", """
get_server_info(self, server) -> DbServerInfo
Query the database for server information.
Parameters :
- server : (str) name of the server to be unexported with
format: <server name>/<instance>
Return : DbServerInfo with server information
Throws : ConnectionFailed, CommunicationFailed, DevFailed from device (DB_SQLError)
New in PyTango 3.0.4
""" )
document_method("put_server_info", """
put_server_info(self, info) -> None
Add/update server information in the database.
Parameters :
- info : (DbServerInfo) new server information
Return : None
Throws : ConnectionFailed, CommunicationFailed, DevFailed from device (DB_SQLError)
New in PyTango 3.0.4
""" )
document_method("delete_server_info", """
delete_server_info(self, server) -> None
Delete server information of the specifed server from the database.
Parameters :
- server : (str) name of the server to be deleted with
format: <server name>/<instance>
Return : None
Throws : ConnectionFailed, CommunicationFailed, DevFailed from device (DB_SQLError)
New in PyTango 3.0.4
""" )
document_method("get_server_class_list", """
get_server_class_list(self, server) -> DbDatum
Query the database for a list of classes instancied by the
specified server. The DServer class exists in all TANGO servers
and for this reason this class is removed from the returned list.
Parameters :
- server : (str) name of the server to be deleted with
format: <server name>/<instance>
Return : DbDatum containing list of class names instanciated by
the specified server
Throws : ConnectionFailed, CommunicationFailed, DevFailed from device (DB_SQLError)
New in PyTango 3.0.4
""" )
document_method("get_server_name_list", """
get_server_name_list(self) -> DbDatum
Return the list of all server names registered in the database.
Parameters : None
Return : DbDatum containing list of server names
Throws : ConnectionFailed, CommunicationFailed, DevFailed from device (DB_SQLError)
New in PyTango 3.0.4
""" )
document_method("get_instance_name_list", """
get_instance_name_list(self, serv_name) -> DbDatum
Return the list of all instance names existing in the database for the specifed server.
Parameters :
- serv_name : (str) server name with format <server name>
Return : DbDatum containing list of instance names for the specified server
Throws : ConnectionFailed, CommunicationFailed, DevFailed from device (DB_SQLError)
New in PyTango 3.0.4
""" )
document_method("get_server_list", """
get_server_list(self) -> DbDatum
get_server_list(self, wildcard) -> DbDatum
Return the list of all servers registered in the database.
If wildcard parameter is given, then the the list of servers registred on the
specified host (we refer 'host' in the context of tango device, i.e. following
the tango naming convention 'host/family/member') is returned
Parameters :
- wildcard : (str) host wildcard
Return : DbDatum containing list of registered servers
""" )
document_method("get_host_server_list", """
get_host_server_list(self, host_name) -> DbDatum
Query the database for a list of servers registred on the specified host.
Parameters :
- host_name : (str) host name
Return : DbDatum containing list of servers for the specified host
Throws : ConnectionFailed, CommunicationFailed, DevFailed from device (DB_SQLError)
New in PyTango 3.0.4
""" )
document_method("get_device_class_list", """
get_device_class_list(self, server) -> DbDatum
Query the database for a list of devices and classes served by
the specified server. Return a list with the following structure:
[device name, class name, device name, class name, ...]
Parameters :
- server : (str) name of the server with format: <server name>/<instance>
Return : DbDatum containing list with the following structure:
[device_name, class name]
Throws : ConnectionFailed, CommunicationFailed, DevFailed from device (DB_SQLError)
New in PyTango 3.0.4
""" )
document_method("_get_property", """
_get_property(self, obj_name, props) -> None
Query the database for a list of object (i.e non-device)
properties. The property names are specified by the
DbData (seq<DbDatum>) structures. The method returns the
properties in the same DbDatum structures
This corresponds to the pure C++ API call.
Parameters :
- obj_name : (str) object name
- props [in, out] : (DbData) property names
Return : None
Throws : ConnectionFailed, CommunicationFailed, DevFailed from device (DB_SQLError)
""" )
document_method("_get_property_forced", """
_get_property_forced(self, obj_name, props) -> None
Query the database for a list of object (i.e non-device)
properties. The property names are specified by the
DbData (seq<DbDatum>) structures. The method returns the
properties in the same DbDatum structures
This corresponds to the pure C++ API call.
Parameters :
- obj_name : (str) object name
- props [in, out] : (DbData) property names
Return : None
Throws : ConnectionFailed, CommunicationFailed, DevFailed from device (DB_SQLError)
New in PyTango 7.0.0
""" )
document_method("_delete_property", """
_delete_property(self, obj_name, props) -> None
Delete a list of properties for the specified object.
This corresponds to the pure C++ API call.
Parameters :
- obj_name : (str) object name
- props : (DbData) property names
Return : None
Throws : ConnectionFailed, CommunicationFailed, DevFailed from device (DB_SQLError)
""" )
document_method("get_property_history", """
get_property_history(self, obj_name, prop_name) -> DbHistoryList
Get the list of the last 10 modifications of the specifed object
property. Note that propname can contain a wildcard character
(eg: 'prop*')
Parameters :
- serv_name : (str) server name
- prop_name : (str) property name
Return : DbHistoryList containing the list of modifications
Throws : ConnectionFailed, CommunicationFailed, DevFailed from device (DB_SQLError)
New in PyTango 7.0.0
""" )
document_method("get_object_list", """
get_object_list(self, wildcard) -> DbDatum
Query the database for a list of object (free properties) for
which properties are defined and which match the specified
wildcard.
Parameters :
- wildcard : (str) object wildcard
Return : DbDatum containing the list of object names matching the given wildcard
Throws : ConnectionFailed, CommunicationFailed, DevFailed from device (DB_SQLError)
New in PyTango 7.0.0
""" )
document_method("get_object_property_list", """
get_object_property_list(self, obj_name, wildcard) -> DbDatum
Query the database for a list of properties defined for the
specified object and which match the specified wildcard.
Parameters :
- obj_name : (str) object name
- wildcard : (str) property name wildcard
Return : DbDatum with list of properties defined for the specified
object and which match the specified wildcard
Throws : ConnectionFailed, CommunicationFailed, DevFailed from device (DB_SQLError)
New in PyTango 7.0.0
""" )
document_method("_get_device_property", """
_get_device_property(self, dev_name, props) -> None
Query the database for a list of device properties for the
specified device. The property names are specified by the
DbData (seq<DbDatum>) structures. The method returns the
properties in the same DbDatum structures
This corresponds to the pure C++ API call.
Parameters :
- dev_name : (str) device name
- props : (DbData) property names
Return : None
Throws : ConnectionFailed, CommunicationFailed, DevFailed from device (DB_SQLError)
""" )
document_method("_put_device_property", """
_put_device_property(self, dev_name, props) -> None
Insert or update a list of properties for the specified device.
This corresponds to the pure C++ API call.
Parameters :
- dev_name : (str) device name
- props : (DbData) property data
Return : None
Throws : ConnectionFailed, CommunicationFailed, DevFailed from device (DB_SQLError)
""" )
document_method("_delete_device_property", """
_delete_device_property(self, dev_name, props) -> None
Delete a list of properties for the specified device.
This corresponds to the pure C++ API call.
Parameters :
- dev_name : (str) device name
- props : (DbData) property names to be deleted
Return : None
Throws : ConnectionFailed, CommunicationFailed, DevFailed from device (DB_SQLError)
""" )
document_method("get_device_property_history", """
get_device_property_history(self, dev_name, prop_name) -> DbHistoryList
Get the list of the last 10 modifications of the specified device
property. Note that propname can contain a wildcard character
(eg: 'prop*').
This corresponds to the pure C++ API call.
Parameters :
- serv_name : (str) server name
- prop_name : (str) property name
Return : DbHistoryList containing the list of modifications
Throws : ConnectionFailed, CommunicationFailed, DevFailed from device (DB_SQLError)
New in PyTango 7.0.0
""" )
document_method("_get_device_property_list", """
_get_device_property_list(self, dev_name, wildcard) -> DbDatum
_get_device_property_list(self, dev_name, wildcard, container) -> None
Query the database for a list of properties defined for the
specified device and which match the specified wildcard.
This corresponds to the pure C++ API call.
Parameters :
- dev_name : (str) device name
- wildcard : (str) property name wildcard
- container [out] : (StdStringVector) array that will contain the matching
property names
Return : DbDatum containing the list of property names or None
Throws : ConnectionFailed, CommunicationFailed, DevFailed from device (DB_SQLError)
New in PyTango 7.0.0
""" )
document_method("_get_device_attribute_property", """
_get_device_attribute_property(self, dev_name, props) -> None
Query the database for a list of device attribute properties for
the specified device. The attribute names are specified by the
DbData (seq<DbDatum>) structures. The method returns all the
properties for the specified attributes in the same DbDatum structures.
This corresponds to the pure C++ API call.
Parameters :
- dev_name : (str) device name
- props [in, out] : (DbData) attribute names
Return : None
Throws : ConnectionFailed, CommunicationFailed, DevFailed from device (DB_SQLError)
""" )
document_method("_put_device_attribute_property", """
_put_device_attribute_property(self, dev_name, props) -> None
Insert or update a list of attribute properties for the specified device.
This corresponds to the pure C++ API call.
Parameters :
- dev_name : (str) device name
- props : (DbData) property data
Return : None
Throws : ConnectionFailed, CommunicationFailed, DevFailed from device (DB_SQLError)
""" )
document_method("_delete_device_attribute_property", """
_delete_device_attribute_property(self, dev_name, props) -> None
Delete a list of attribute properties for the specified device.
The attribute names are specified by the vector of DbDatum structures. Here
is an example of how to delete the unit property of the velocity attribute of
the id11/motor/1 device using this method :
db_data = PyTango.DbData();
db_data.append(DbDatum("velocity"));
db_data.append(DbDatum("unit"));
db.delete_device_attribute_property("id11/motor/1", db_data);
This corresponds to the pure C++ API call.
Parameters :
- serv_name : (str) server name
- props : (DbData) attribute property data
Return : None
Throws : ConnectionFailed, CommunicationFailed, DevFailed from device (DB_SQLError)
""" )
document_method("get_device_attribute_property_history", """
get_device_attribute_property_history(self, dev_name, att_name, prop_name) -> DbHistoryList
Get the list of the last 10 modifications of the specified device
attribute property. Note that propname and devname can contain a
wildcard character (eg: 'prop*').
Parameters :
- dev_name : (str) device name
- attn_ame : (str) attribute name
- prop_name : (str) property name
Return : DbHistoryList containing the list of modifications
Throws : ConnectionFailed, CommunicationFailed, DevFailed from device (DB_SQLError)
New in PyTango 7.0.0
""" )
document_method("_get_class_property", """
_get_class_property(self, class_name, props) -> None
Query the database for a list of class properties. The property
names are specified by the DbData (seq<DbDatum>) structures.
The method returns the properties in the same DbDatum structures.
This corresponds to the pure C++ API call.
Parameters :
- class_name : (str) class name
- props [in, out] : (DbData) property names
Return : None
Throws : ConnectionFailed, CommunicationFailed, DevFailed from device (DB_SQLError)
""" )
document_method("_put_class_property", """
_put_class_property(self, class_name, props) -> None
Insert or update a list of properties for the specified class.
This corresponds to the pure C++ API call.
Parameters :
- class_name : (str) class name
- props : (DbData) property data to be inserted
Return : None
Throws : ConnectionFailed, CommunicationFailed, DevFailed from device (DB_SQLError)
""" )
document_method("_delete_class_property", """
_delete_class_property(self, class_name, props) -> None
Delete a list of properties for the specified class.
This corresponds to the pure C++ API call.
Parameters :
- class_name : (str) class name
- props : (DbData) property names
Return : None
Throws : ConnectionFailed, CommunicationFailed, DevFailed from device (DB_SQLError)
""" )
document_method("get_class_property_history", """
get_class_property_history(self, class_name, prop_name) -> DbHistoryList
Get the list of the last 10 modifications of the specified class
property. Note that propname can contain a wildcard character
(eg: 'prop*').
Parameters :
- class_name : (str) class name
- prop_name : (str) property name
Return : DbHistoryList containing the list of modifications
Throws : ConnectionFailed, CommunicationFailed, DevFailed from device (DB_SQLError)
New in PyTango 7.0.0
""" )
document_method("get_class_list", """
get_class_list(self, wildcard) -> DbDatum
Query the database for a list of classes which match the specified wildcard
Parameters :
- wildcard : (str) class wildcard
Return : DbDatum containing the list of matching classes
Throws : ConnectionFailed, CommunicationFailed, DevFailed from device (DB_SQLError)
New in PyTango 7.0.0
""" )
document_method("get_class_property_list", """
get_class_property_list(self, class_name) -> DbDatum
Query the database for a list of properties defined for the specified class.
Parameters :
- class_name : (str) class name
Return : DbDatum containing the list of properties for the specified class
Throws : ConnectionFailed, CommunicationFailed, DevFailed from device (DB_SQLError)
""" )
document_method("_get_class_attribute_property", """
_get_class_attribute_property(self, class_name, props) -> None
Query the database for a list of class attribute properties for
the specified objec. The attribute names are returned with the
number of properties specified as their value. The first DbDatum
element of the returned DbData vector contains the first
attribute name and the first attribute property number. The
following DbDatum element contains the first attribute property
name and property values.
This corresponds to the pure C++ API call.
Parameters :
- class_name : (str) class name
- props [in,out] : (DbData) property names
Return : None
Throws : ConnectionFailed, CommunicationFailed, DevFailed from device (DB_SQLError)
""" )
document_method("_put_class_attribute_property", """
_put_class_attribute_property(self, class_name, props) -> None
Insert or update a list of attribute properties for the specified class.
This corresponds to the pure C++ API call.
Parameters :
- class_name : (str) class name
- props : (DbData) property data
Return : None
Throws : ConnectionFailed, CommunicationFailed, DevFailed from device (DB_SQLError)
""" )
document_method("get_class_attribute_property_history", """
get_class_attribute_property_history(self, dev_name, attr_name, prop_name) -> DbHistoryList
Delete a list of properties for the specified class.
This corresponds to the pure C++ API call.
Parameters :
- dev_name : (str) device name
- attr_name : (str) attribute name
- prop_name : (str) property name
Return : DbHistoryList containing the list of modifications
Throws : ConnectionFailed, CommunicationFailed, DevFailed from device (DB_SQLError)
New in PyTango 7.0.0
""" )
document_method("get_class_attribute_list", """
get_class_attribute_list(self, class_name, wildcard) -> DbDatum
Query the database for a list of attributes defined for the specified
class which match the specified wildcard.
Parameters :
- class_name : (str) class name
- wildcard : (str) attribute name
Return : DbDatum containing the list of matching attributes for the given class
Throws : ConnectionFailed, CommunicationFailed, DevFailed from device (DB_SQLError)
New in PyTango 7.0.0
""" )
document_method("get_attribute_alias", """
get_attribute_alias(self, alias) -> str
Get the full attribute name from an alias.
Parameters :
- alias : (str) attribute alias
Return : full attribute name
Throws : ConnectionFailed, CommunicationFailed, DevFailed from device (DB_SQLError)
.. deprecated:: 8.1.0
Use :meth:`~PyTango.Database.get_attribute_from_alias` instead
""" )
document_method("get_attribute_from_alias", """
get_attribute_from_alias(self, alias) -> str
Get the full attribute name from an alias.
Parameters :
- alias : (str) attribute alias
Return : full attribute name
Throws : ConnectionFailed, CommunicationFailed, DevFailed from device (DB_SQLError)
New in PyTango 8.1.0
""" )
document_method("get_alias_from_attribute", """
get_alias_from_attribute(self, attr_name) -> str
Get the attribute alias from the full attribute name.
Parameters :
- attr_name : (str) full attribute name
Return : attribute alias
Throws : ConnectionFailed, CommunicationFailed, DevFailed from device (DB_SQLError)
New in PyTango 8.1.0
""" )
document_method("get_attribute_alias_list", """
get_attribute_alias_list(self, filter) -> DbDatum
Get attribute alias list. The parameter alias is a string to
filter the alias list returned. Wildcard (*) is supported. For
instance, if the string alias passed as the method parameter
is initialised with only the * character, all the defined
attribute alias will be returned. If there is no alias with the
given filter, the returned array will have a 0 size.
Parameters :
- filter : (str) attribute alias filter
Return : DbDatum containing the list of matching attribute alias
Throws : ConnectionFailed, CommunicationFailed, DevFailed from device (DB_SQLError)
""" )
document_method("put_attribute_alias", """
put_attribute_alias(self, attr_name, alias) -> None
Set an alias for an attribute name. The attribute alias is
specified by aliasname and the attribute name is specifed by
attname. If the given alias already exists, a DevFailed exception
is thrown.
Parameters :
- attr_name : (str) full attribute name
- alias : (str) alias
Return : None
Throws : ConnectionFailed, CommunicationFailed, DevFailed from device (DB_SQLError)
""" )
document_method("delete_attribute_alias", """
delete_attribute_alias(self, alias) -> None
Remove the alias associated to an attribute name.
Parameters :
- alias : (str) alias
Return : None
Throws : ConnectionFailed, CommunicationFailed, DevFailed from device (DB_SQLError)
""" )
document_method("export_event", """
export_event(self, event_data) -> None
Export an event to the database.
Parameters :
- eventdata : (sequence<str>) event data (same as DbExportEvent Database command)
Return : None
Throws : ConnectionFailed, CommunicationFailed, DevFailed from device (DB_SQLError)
New in PyTango 7.0.0
""" )
document_method("unexport_event", """
unexport_event(self, event) -> None
Un-export an event from the database.
Parameters :
- event : (str) event
Return : None
Throws : ConnectionFailed, CommunicationFailed, DevFailed from device (DB_SQLError)
New in PyTango 7.0.0
""" )
def __doc_DbDatum():
def document_method(method_name, desc, append=True):
return __document_method(DbDatum, method_name, desc, append)
DbDatum.__doc__ = """
A single database value which has a name, type, address and value
and methods for inserting and extracting C++ native types. This is
the fundamental type for specifying database properties. Every
property has a name and has one or more values associated with it.
A status flag indicates if there is data in the DbDatum object or
not. An additional flag allows the user to activate exceptions.
Note: DbDatum is extended to support the python sequence API.
This way the DbDatum behaves like a sequence of strings.
This allows the user to work with a DbDatum as if it was
working with the old list of strings.
New in PyTango 7.0.0"""
document_method("size", """
size(self) -> int
Returns the number of separate elements in the value.
Parameters : None
Return : the number of separate elements in the value.
New in PyTango 7.0.0
""" )
document_method("is_empty", """
is_empty(self) -> bool
Returns True or False depending on whether the
DbDatum object contains data or not. It can be used to test
whether a property is defined in the database or not.
Parameters : None
Return : (bool) True if no data or False otherwise.
New in PyTango 7.0.0
""" )
def __doc_DbDevExportInfo():
DbDevExportInfo.__doc__ = """
import info for a device (should be retrived from the database) with
the following members:
- name : (str) device name
- ior : (str) CORBA reference of the device
- host : name of the computer hosting the server
- version : (str) version
- pid : process identifier"""
def __doc_DbDevImportInfo():
DbDevImportInfo.__doc__ = """
import info for a device (should be retrived from the database) with
the following members:
- name : (str) device name
- exported : 1 if device is running, 0 else
- ior : (str)CORBA reference of the device
- version : (str) version"""
def __doc_DbDevInfo():
DbDevInfo.__doc__ = """
A structure containing available information for a device with
the following members:
- name : (str) name
- _class : (str) device class
- server : (str) server"""
def __doc_DbHistory():
def document_method(method_name, desc, append=True):
return __document_method(DbHistory, method_name, desc, append)
DbHistory.__doc__ = """
A structure containing the modifications of a property. No public members."""
document_method("get_name", """
get_name(self) -> str
Returns the property name.
Parameters : None
Return : (str) property name
""" )
document_method("get_attribute_name", """
get_attribute_name(self) -> str
Returns the attribute name (empty for object properties or device properties)
Parameters : None
Return : (str) attribute name
""" )
document_method("get_date", """
get_date(self) -> str
Returns the update date
Parameters : None
Return : (str) update date
""" )
document_method("get_value", """
get_value(self) -> DbDatum
Returns a COPY of the property value
Parameters : None
Return : (DbDatum) a COPY of the property value
""" )
document_method("is_deleted", """
is_deleted(self) -> bool
Returns True if the property has been deleted or False otherwise
Parameters : None
Return : (bool) True if the property has been deleted or False otherwise
""" )
def __doc_DbServerInfo():
DbServerInfo.__doc__ = """
A structure containing available information for a device server with
the following members:
- name : (str) name
- host : (str) host
- mode : (str) mode
- level : (str) level"""
def __doc_DbServerData():
def document_method(method_name, desc, append=True):
return __document_method(DbServerData, method_name, desc, append)
DbServerData.__doc__ = """\
A structure used for moving DS from one tango host to another.
Create a new instance by: DbServerData(<server name>, <server instance>)"""
document_method("get_name", """
get_name(self) -> str
Returns the full server name
Parameters : None
Return : (str) the full server name
""" )
document_method("put_in_database", """
put_in_database(self, tg_host) -> None
Store all the data related to the device server process in the
database specified by the input arg.
Parameters :
- tg_host : (str) The tango host for the new database
Return : None
""" )
document_method("already_exist", """
already_exist(self, tg_host) -> bool
Check if any of the device server process device(s) is already
defined in the database specified by the tango host given as input arg
Parameters :
- tg_host : (str) The tango host for the new database
Return : (str) True in case any of the device is already known. False otherwise
""" )
document_method("remove", """
remove(self) -> None
remove(self, tg_host) -> None
Remove device server process from a database.
Parameters :
- tg_host : (str) The tango host for the new database
Return : None
""" )
def db_init(doc=True):
__init_DbDatum()
if doc:
__doc_DbDatum()
__init_Database()
if doc:
__doc_Database()
__doc_DbDevExportInfo()
__doc_DbDevImportInfo()
__doc_DbDevInfo()
__doc_DbHistory()
__doc_DbServerInfo()
__doc_DbServerData()
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