volttron-lib-sql-historian 2.0.0rc1

A library for supporting sql based historians.

Generic SQL Historian library that can be used to implement a historian agent with a relational database backend. This library cannot be installed as a VOLTTRON agent as is. Only a concrete database implementation package such as sqlite-historian that depends on this library can be installed as a VOLTTRON agent.

Requirements

• Python >= 3.10

Installation

This library can be installed using pip install volttron-lib-sql-historian. However, this is not necessary. Any historian agent that uses this library will automatically install it as part of its installation. For example, installing SQLiteHistorian will automatically install volttron-lib-sql-historian

Development

Please see the following for contributing guidelines contributing.

Please see the following helpful guide about developing modular VOLTTRON agents

To create a new relational database based historian by extending this library, subclass DBDriver. The subclass should be in a module historian.<database_type>.<database_type>functs.py for it to be dynamically loaded by the base DBDriver. Please refer to SQLiteHistorian as an example

Disclaimer Notice

This material was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor the United States Department of Energy, nor Battelle, nor any of their employees, nor any jurisdiction or organization that has cooperated in the development of these materials, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness or any information, apparatus, product, software, or process disclosed, or represents that its use would not infringe privately owned rights.

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