finam.IAdapter#

class finam.IAdapter[source]#

Bases: IInput, IOutput, ABC

Interface for adapters.

Attributes:

info: Info: The input’s data info.
is_static: Whether the input is static
memory_limit: The memory limit for this slot
memory_location: The memory-mapping location for this slot
metadata: The adapter’s meta data.
name: Input name.
needs_pull: bool: if the input needs pull.
needs_push: bool: if the input needs push.
source: Get the input’s source output or adapter
targets: Get target inputs and adapters for this output.
time: The output’s time of the latest available data

Methods

`add_target`(target)	Add a target input or adapter for this output.
`chain`(other)	Chain outputs and adapters.
`exchange_info`(info)	Exchange the data info with the input's source.
`finalize`()	Finalize the output
`get_data`(time, target)	Get the output's data-set for the given time.
`get_info`(info)	Exchange and get the output's data info.
`has_info`()	Returns if the output has a data info.
`notify_targets`(time)	Notify all targets by calling their `source_updated(time)` method.
`ping`()	Pings upstream to inform outputs about the number of connected inputs.
`pinged`(source)	Called when receiving a ping from a downstream input.
`pull_data`(time, target)	Retrieve the data from the input's source.
`push_data`(data, time)	Push data into the output.
`push_info`(info)	Push data info into the output.
`source_updated`(time)	Informs the input that a new output is available.

abstract property metadata#: The adapter’s meta data. Will only be called after the connect phase of the composition.

abstractmethod add_target(target)#

Add a target input or adapter for this output.

Parameters:: target (IInput) – The target to add.

abstractmethod chain(other)#

Chain outputs and adapters.

Parameters:: other (IInput or IAdapter) – The adapter or input to add as target to this output.
Returns:: The last element of the chain.
Return type:: IOutput

abstractmethod exchange_info(info)#

Exchange the data info with the input’s source.

Parameters:: info (Info) – request parameters
Returns:: delivered parameters
Return type:: dict

abstractmethod finalize()#: Finalize the output

abstractmethod get_data(time, target)#

Get the output’s data-set for the given time.

Parameters:

time (datetime) – Simulation time to get the data for.
target (IInput) – Requesting end point of this pull

Returns:

data-set for the requested time.

Return type:

pint.Quantity

Raises:

FinamNoDataError – Raises the error if no data is available

abstractmethod get_info(info)#

Exchange and get the output’s data info.

Parameters:: info (Info) – Requested data info
Returns:: Delivered data info
Return type:: dict
Raises:: FinamNoDataError – Raises the error if no info is available

abstractmethod has_info()#

Returns if the output has a data info.

The info is not required to be validly exchanged.

abstract property info#

The input’s data info.

Type:: Info

abstract property is_static#: Whether the input is static

abstract property memory_limit#: The memory limit for this slot

abstract property memory_location#: The memory-mapping location for this slot

abstract property name#: Input name.

abstract property needs_pull#

if the input needs pull.

Type:: bool

abstract property needs_push#

if the input needs push.

Type:: bool

abstractmethod notify_targets(time)#

Notify all targets by calling their source_updated(time) method.

Parameters:: time (datetime) – Simulation time of the simulation.

abstractmethod ping()#

Pings upstream to inform outputs about the number of connected inputs.

Must be called after linking and before the connect phase.

abstractmethod pinged(source)#

Called when receiving a ping from a downstream input.

Parameters:: source (IInput) – Pinging target end point

abstractmethod pull_data(time, target)#

Retrieve the data from the input’s source.

Parameters:

time (datetime) – Simulation time to get the data for.
target (IInput or None) – Requesting end point of this pull.

Returns:

Data set for the given simulation time.

Return type:

pint.Quantity

abstractmethod push_data(data, time)#

Push data into the output.

Should notify targets, and can handle the provided date.

Parameters:

data (array_like) – Data set to push.
time (datetime) – Simulation time of the data set.

abstractmethod push_info(info)#

Push data info into the output.

Parameters:: info (Info) – Delivered data info

abstract property source#

Get the input’s source output or adapter

Returns:: The input’s source.
Return type:: IOutput

abstractmethod source_updated(time)#

Informs the input that a new output is available.

Parameters:: time (datetime) – Simulation time of the notification.

abstract property targets#

Get target inputs and adapters for this output.

Returns:: List of targets.
Return type:: list

abstract property time#: The output’s time of the latest available data