Architecture

Persistency KVS Feature Architecture		status: valid security: NO safety: ASIL_B
tags: persistency realizes: wp__feature_arch
doc__persistency_architecture		Generic Document

Overview

The Key-Value-Storage (kvs) provides the capability to efficiently store, retrieve, and manage key-value pairs in a persistent storage system.

Description

• kvs organize data as pairs, where each unique key is associated with a specific value. The key acts as a unique identifier for getting the value.

• The data is persisted in JSON format to the file system, providing a human-readable, and widely supported way to store and manage key-value pairs.

• The JSON data persisted is according to RFC-8259.

Rationale Behind Architecture Decomposition

• The architecture is decomposed to include a dedicated JSON parser component (json) to facilitate the persistent storage of data in JSON format.

• The architecture is decomposed to include a FileStorage component (fs) to read and write to the file system.

Glossary

• User: Program code that is written by a person that initiates the given functionality call or receives a callback.

Static Architecture

Static Architecture		status: valid security: YES safety: ASIL_B
fulfils: feat_req__persistency__default_value_get, feat_req__persistency__default_values, feat_req__persistency__events, feat_req__persistency__integrity_check, feat_req__persistency__persist_data, feat_req__persistency__persistency, feat_req__persistency__snapshots, feat_req__persistency__support_datatype_keys, feat_req__persistency__support_datatype_value, feat_req__persistency__variant_management, feat_req__persistency__default_value_file, feat_req__persistency__config_file, feat_req__persistency__async_api, feat_req__persistency__access_control, feat_req__persistency__intra_process_comm includes: logic_arc_int__persistency__interface violated_by: feat_saf_dfa__persistency__execution_blocking
feat_arc_sta__persistency__static		Feature & Feature Package Diagram

Dynamic Architecture

Check if key contains default value		status: valid security: YES safety: ASIL_B
fulfils: feat_req__persistency__default_values, feat_req__persistency__default_value_get violated_by: feat_saf_fmea__persistency__message_nreived, feat_saf_fmea__persistency__late_message, feat_saf_fmea__persistency__corrupted_message, feat_saf_fmea__persistency__not_sent, feat_saf_fmea__persistency__err_handl
feat_arc_dyn__persistency__check_key_default		Feature Sequence Diagram

Delete key from KVS instance		status: valid security: YES safety: ASIL_B
fulfils: feat_req__persistency__events violated_by: feat_saf_fmea__persistency__message_nreived, feat_saf_fmea__persistency__late_message, feat_saf_fmea__persistency__corrupted_message, feat_saf_fmea__persistency__not_sent, feat_saf_fmea__persistency__err_handl
feat_arc_dyn__persistency__delete_key		Feature Sequence Diagram

Flush to permanent storage		status: valid security: YES safety: ASIL_B
fulfils: feat_req__persistency__persist_data, feat_req__persistency__persistency, feat_req__persistency__snapshots, feat_req__persistency__integrity_check, feat_req__persistency__snapshots violated_by: feat_saf_fmea__persistency__message_nreived, feat_saf_fmea__persistency__late_message, feat_saf_fmea__persistency__corrupted_message, feat_saf_fmea__persistency__not_sent, feat_saf_fmea__persistency__err_handl
feat_arc_dyn__persistency__flush		Feature Sequence Diagram

Read key value		status: valid security: YES safety: ASIL_B
fulfils: feat_req__persistency__support_datatype_keys, feat_req__persistency__support_datatype_value, feat_req__persistency__default_values, feat_req__persistency__default_value_get violated_by: feat_saf_fmea__persistency__message_nreived, feat_saf_fmea__persistency__late_message, feat_saf_fmea__persistency__corrupted_message, feat_saf_fmea__persistency__not_sent, feat_saf_fmea__persistency__err_handl
feat_arc_dyn__persistency__read_key		Feature Sequence Diagram

Read data from permanent storage		status: valid security: YES safety: ASIL_B
fulfils: feat_req__persistency__persist_data, feat_req__persistency__persistency, feat_req__persistency__integrity_check, feat_req__persistency__snapshots violated_by: feat_saf_fmea__persistency__message_nreived, feat_saf_fmea__persistency__late_message, feat_saf_fmea__persistency__corrupted_message, feat_saf_fmea__persistency__not_sent, feat_saf_fmea__persistency__err_handl
feat_arc_dyn__persistency__read_from_storage		Feature Sequence Diagram

Write value to key		status: valid security: YES safety: ASIL_B
fulfils: feat_req__persistency__support_datatype_keys, feat_req__persistency__support_datatype_value violated_by: feat_saf_fmea__persistency__message_nreived, feat_saf_fmea__persistency__late_message, feat_saf_fmea__persistency__corrupted_message, feat_saf_fmea__persistency__not_sent, feat_saf_fmea__persistency__err_handl
feat_arc_dyn__persistency__write_key		Feature Sequence Diagram

Restore snapshot		status: valid security: YES safety: ASIL_B
fulfils: feat_req__persistency__snapshots, feat_req__persistency__persist_data, feat_req__persistency__persistency violated_by: feat_saf_fmea__persistency__message_nreived, feat_saf_fmea__persistency__late_message, feat_saf_fmea__persistency__corrupted_message, feat_saf_fmea__persistency__not_sent, feat_saf_fmea__persistency__err_handl
feat_arc_dyn__persistency__snapshot_restore		Feature Sequence Diagram

Logical Interfaces

Ikvs		status: valid security: YES safety: ASIL_B
fulfils: feat_req__persistency__async_api included by: feat_arc_sta__persistency__static
logic_arc_int__persistency__interface		Logical Interface & Feature Interface View