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Client

Note

MDBClient instances are usually created via YamcsClient.get_mdb():

from yamcs.client import YamcsClient

client = YamcsClient('localhost:8090')
mdb = client.get_mdb(instance='simulator')
# ...
class yamcs.mdb.client.MDBClient(ctx: Context, instance: str)
create_parameter(name: str, data_source: str, short_description: Optional[str] = None, long_description: Optional[str] = None, aliases: Optional[Mapping[str, str]] = None, parameter_type: Optional[str] = None) → Parameter

Create a parameter.

New in version 1.9.1: Compatible with Yamcs 5.8.8 onwards

Parameters:

  • name –

    Fully qualified name of the parameter.

    Space systems that do not yet exist, will be added automatically.

  • data_source – Where this parameter originated. One of TELEMETERED, GROUND, DERIVED, CONSTANT, LOCAL, SYSTEM, COMMAND, COMMAND_HISTORY.

  • short_description – Short description (one line)

  • long_description – Long description (Markdown)

  • aliases – Aliases, keyed by namespace.

  • parameter_type – Qualified name of a parameter type. This is optional, but recommended. It allows specifying units, alarms and so on.

create_parameter_type(name: str, eng_type: str, short_description: Optional[str] = None, long_description: Optional[str] = None, aliases: Optional[Mapping[str, str]] = None, unit: Optional[str] = None, signed: Optional[bool] = None, enum_values: Optional[Mapping[int, str]] = None, one_string_value: Optional[str] = None, zero_string_value: Optional[str] = None, default_alarm: Optional[RangeSet] = None, context_alarms: Optional[Mapping[str, RangeSet]] = None) → ParameterType

Create a parameter type.

New in version 1.9.1: Compatible with Yamcs 5.8.8 onwards

Parameters:

  • name –

    Fully qualified name of the parameter type.

    Space systems that do not yet exist, will be added automatically.

  • eng_type – Engineering type. One of float, integer, boolean, binary, string or enumeration.

  • short_description – Short description (one line)

  • long_description – Long description (Markdown)

  • aliases – Aliases, keyed by namespace.

  • unit – Engineering unit

  • signed – Whether the engineering type supports signed representation. (only used with integer parameter types)

  • enum_values – Enumeration labels, keyed by integer value (only used with enumeration parameter types)

  • one_string_value – String representation of a boolean one. (only used with boolean parameter types)

  • zero_string_value – String representation of a boolean zero. (only used with boolean parameter types)

  • default_alarm – Default alarm, effective when no contextual alarm takes precedence.

  • context_alarms – Contextual alarms, keyed by condition.

export_space_system(name: str) → str

Exports an XTCE description of a space system (XML format).

New in version 1.9.0: Compatible with Yamcs 5.8.0 onwards

Parameters:

name – A fully-qualified XTCE name. Use / for root.

get_algorithm(name: str) → Algorithm

Gets a single algorithm by its unique name.

Parameters:

name – Either a fully-qualified XTCE name or an alias in the format NAMESPACE/NAME.

get_command(name: str) → Command

Gets a single command by its unique name.

Parameters:

name – Either a fully-qualified XTCE name or an alias in the format NAMESPACE/NAME.

get_container(name: str) → Container

Gets a single container by its unique name.

Parameters:

name – Either a fully-qualified XTCE name or an alias in the format NAMESPACE/NAME.

get_parameter(name: str) → Parameter

Gets a single parameter by its name.

Parameters:

name – Either a fully-qualified XTCE name or an alias in the format NAMESPACE/NAME.

get_parameter_type(name: str) → ParameterType

Gets a single parameter type by its name.

New in version 1.9.1: Compatible with Yamcs 5.8.8 onwards

Parameters:

name – Either a fully-qualified XTCE name or an alias in the format NAMESPACE/NAME.

get_space_system(name: str) → SpaceSystem

Gets a single space system by its unique name.

Parameters:

name – A fully-qualified XTCE name. Use / for root.

list_algorithms(page_size: Optional[int] = None) → Iterable[Algorithm]

Lists the algorithms visible to this client.

Algorithms are returned in lexicographical order.

list_commands(page_size: Optional[int] = None) → Iterable[Command]

Lists the commands visible to this client.

Commands are returned in lexicographical order.

list_containers(page_size: Optional[int] = None) → Iterable[Container]

Lists the containers visible to this client.

Containers are returned in lexicographical order.

list_parameter_types(page_size: Optional[int] = None) → Iterable[ParameterType]

Lists the parameter types visible to this client.

Parameter types are returned in lexicographical order.

New in version 1.9.1: Compatible with Yamcs 5.8.8 onwards

list_parameters(parameter_type: Optional[str] = None, page_size: Optional[int] = None) → Iterable[Parameter]

Lists the parameters visible to this client.

Parameters are returned in lexicographical order.

Parameters:

parameter_type – The type of parameter

list_space_systems(page_size: Optional[int] = None) → Iterable[SpaceSystem]

Lists the space systems visible to this client.

Space systems are returned in lexicographical order.

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