<!-- markdownlint-disable-file MD033 MD024 -->
+<div align="center">
-# [e-mobility charging stations simulator](https://github.com/sap/e-mobility-charging-stations-simulator)
+# [e-Mobility charging stations simulator](https://github.com/sap/e-mobility-charging-stations-simulator)
+
+</div>
+
+<div align="center">
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-## Summary
+</div>
Simple [node.js](https://nodejs.org/) software to simulate and scale a set of charging stations based on the OCPP-J protocol as part of [SAP e-Mobility](https://www.sap.com/products/scm/e-mobility.html) solution.
-## Prerequisites
+## Table of contents
+
+- [Installation](#installation)
+ - [Prerequisites](#prerequisites)
+ - [Windows](#windows)
+ - [MacOSX](#macosx)
+ - [GNU/Linux](#gnulinux)
+ - [Development prerequisites (optional)](#development-prerequisites-optional)
+ - [Unix](#unix)
+ - [Windows](#windows-1)
+ - [Dependencies](#dependencies)
+- [Initial configuration](#initial-configuration)
+- [Start simulator](#start-simulator)
+- [Start Web UI](#start-web-ui)
+- [Configuration files syntax](#configuration-files-syntax)
+ - [Charging stations simulator configuration](#charging-stations-simulator-configuration)
+ - [Charging station template configuration](#charging-station-template-configuration)
+ - [Charging station configuration](#charging-station-configuration)
+- [Docker](#docker)
+- [OCPP-J commands supported](#ocpp-j-commands-supported)
+ - [Version 1.6](#version-16)
+ - [Version 2.x.x](#version-2xx)
+- [OCPP-J standard parameters supported](#ocpp-j-standard-parameters-supported)
+ - [Version 1.6](#version-16-1)
+ - [Version 2.x.x](#version-2xx-1)
+- [UI Protocol](#ui-protocol)
+ - [Websocket Protocol](#websocket-protocol)
+ - [HTTP Protocol](#http-protocol)
+- [Support, Feedback, Contributing](#support-feedback-contributing)
+- [Code of Conduct](#code-of-conduct)
+- [Licensing](#licensing)
+
+## Installation
+
+### Prerequisites
Install the [node.js](https://nodejs.org/) current LTS or superior version runtime environment:
-### Windows
+#### Windows
- [Chocolatey](https://chocolatey.org/):
choco install -y nodejs
```
-### MacOSX
+#### MacOSX
- [Homebrew](https://brew.sh/):
brew install node
```
-### GNU/Linux
+#### GNU/Linux
-- [NodeSource](https://github.com/nodesource/distributions) Node.js Binary Distributions for all supported versions.
+- [NodeSource](https://github.com/nodesource/distributions) node.js binary distributions for all supported versions.
-## Installation
+### Development prerequisites (optional)
+
+Install [volta](https://volta.sh/) for managing automatically the node.js runtime and package manager version:
+
+#### Unix
+
+```shell
+curl https://get.volta.sh | bash
+```
+
+#### Windows
+
+```powershell
+choco install volta
+```
+
+Setup [volta](https://volta.sh/) with [pnpm](https://github.com/pnpm/pnpm) package manager support: https://docs.volta.sh/advanced/pnpm
+
+### Dependencies
-Enable corepack if not already done and install latest pnpm version:
+Enable corepack, if [volta](https://volta.sh/) is not installed and configured, and install latest pnpm version:
```shell
corepack enable
Copy the configuration template file [src/assets/config-template.json](./src/assets/config-template.json) to [src/assets/config.json](./src/assets/config.json).
Copy the RFID tags template file [src/assets/idtags-template.json](./src/assets/idtags-template.json) to [src/assets/idtags.json](./src/assets/idtags.json).
-Tweak them to your needs by following the section [configuration files syntax](./README.md#configuration-files-syntax): OCPP server supervision URL(s), charging station templates, etc.
+Tweak them to your needs by following the section [configuration files syntax](#configuration-files-syntax): OCPP server supervision URL(s), charging station templates, etc.
-## Start
+## Start simulator
-To start the program, run: `pnpm start`.
+```shell
+pnpm start
+```
## Start Web UI
## Configuration files syntax
-All configuration files are in the JSON standard format.
+All configuration files are using the JSON standard syntax.
**Configuration files locations**:
**src/assets/config.json**:
-| Key | Value(s) | Default Value | Value type | Description |
-| -------------------------- | -------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
-| supervisionUrls | | [] | string \| string[] | string or strings array containing global connection URIs to OCPP-J servers |
-| supervisionUrlDistribution | round-robin/random/charging-station-affinity | charging-station-affinity | string | supervision urls distribution policy to simulated charging stations |
-| log | | {<br />"enabled": true,<br />"file": "logs/combined.log",<br />"errorFile": "logs/error.log",<br />"statisticsInterval": 60,<br />"level": "info",<br />"console": false,<br />"format": "simple",<br />"rotate": true<br />} | {<br />enabled?: boolean;<br />file?: string;<br />errorFile?: string;<br />statisticsInterval?: number;<br />level?: string;<br />console?: boolean;<br />format?: string;<br />rotate?: boolean;<br />maxFiles?: string \| number;<br />maxSize?: string \| number;<br />} | Log configuration section:<br />- _enabled_: enable logging<br />- _file_: log file relative path<br />- _errorFile_: error log file relative path<br />- _statisticsInterval_: seconds between charging stations statistics output in the logs<br />- _level_: emerg/alert/crit/error/warning/notice/info/debug [winston](https://github.com/winstonjs/winston) logging level</br >- _console_: output logs on the console<br />- _format_: [winston](https://github.com/winstonjs/winston) log format<br />- _rotate_: enable daily log files rotation<br />- _maxFiles_: maximum number of log files: https://github.com/winstonjs/winston-daily-rotate-file#options<br />- _maxSize_: maximum size of log files in bytes, or units of kb, mb, and gb: https://github.com/winstonjs/winston-daily-rotate-file#options |
-| worker | | {<br />"processType": "workerSet",<br />"startDelay": 500,<br />"elementStartDelay": 0,<br />"elementsPerWorker": 'auto',<br />"poolMinSize": 4,<br />"poolMaxSize": 16<br />} | {<br />processType?: WorkerProcessType;<br />startDelay?: number;<br />elementStartDelay?: number;<br />elementsPerWorker?: number \| 'auto' \| 'all';<br />poolMinSize?: number;<br />poolMaxSize?: number;<br />resourceLimits?: ResourceLimits;<br />} | Worker configuration section:<br />- _processType_: worker threads process type (`workerSet`/`fixedPool`/`dynamicPool`)<br />- _startDelay_: milliseconds to wait at worker threads startup (only for `workerSet` worker threads process type)<br />- _elementStartDelay_: milliseconds to wait at charging station startup<br />- _elementsPerWorker_: number of charging stations per worker threads for the `workerSet` process type (`auto` means (number of stations) / (number of CPUs) \* 1.5 if (number of stations) > (number of CPUs), otherwise 1; `all` means a unique worker will run all charging stations)<br />- _poolMinSize_: worker threads pool minimum number of threads</br >- _poolMaxSize_: worker threads pool maximum number of threads<br />- _resourceLimits_: worker threads [resource limits](https://nodejs.org/api/worker_threads.html#new-workerfilename-options) object option |
-| uiServer | | {<br />"enabled": false,<br />"type": "ws",<br />"version": "1.1",<br />"options": {<br />"host": "localhost",<br />"port": 8080<br />}<br />} | {<br />enabled?: boolean;<br />type?: ApplicationProtocol;<br />version?: ApplicationProtocolVersion;<br />options?: ServerOptions;<br />authentication?: {<br />enabled: boolean;<br />type: AuthenticationType;<br />username?: string;<br />password?: string;<br />}<br />} | UI server configuration section:<br />- _enabled_: enable UI server<br />- _type_: 'http' or 'ws'<br />- _version_: HTTP version '1.1' or '2.0'<br />- _options_: node.js net module [listen options](https://nodejs.org/api/net.html#serverlistenoptions-callback)<br />- _authentication_: authentication type configuration section |
-| performanceStorage | | {<br />"enabled": true,<br />"type": "none",<br />} | {<br />enabled?: boolean;<br />type?: string;<br />uri?: string;<br />} | Performance storage configuration section:<br />- _enabled_: enable performance storage<br />- _type_: 'jsonfile', 'mongodb' or 'none'<br />- _uri_: storage URI |
-| stationTemplateUrls | | {}[] | {<br />file: string;<br />numberOfStations: number;<br />}[] | array of charging station configuration templates URIs configuration section (charging station configuration template file name and number of stations) |
+| Key | Value(s) | Default Value | Value type | Description |
+| -------------------------- | -------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
+| supervisionUrls | | [] | string \| string[] | string or strings array containing global connection URIs to OCPP-J servers |
+| supervisionUrlDistribution | round-robin/random/charging-station-affinity | charging-station-affinity | string | supervision urls distribution policy to simulated charging stations |
+| log | | {<br />"enabled": true,<br />"file": "logs/combined.log",<br />"errorFile": "logs/error.log",<br />"statisticsInterval": 60,<br />"level": "info",<br />"console": false,<br />"format": "simple",<br />"rotate": true<br />} | {<br />enabled?: boolean;<br />file?: string;<br />errorFile?: string;<br />statisticsInterval?: number;<br />level?: string;<br />console?: boolean;<br />format?: string;<br />rotate?: boolean;<br />maxFiles?: string \| number;<br />maxSize?: string \| number;<br />} | Log configuration section:<br />- _enabled_: enable logging<br />- _file_: log file relative path<br />- _errorFile_: error log file relative path<br />- _statisticsInterval_: seconds between charging stations statistics output in the logs<br />- _level_: emerg/alert/crit/error/warning/notice/info/debug [winston](https://github.com/winstonjs/winston) logging level</br >- _console_: output logs on the console<br />- _format_: [winston](https://github.com/winstonjs/winston) log format<br />- _rotate_: enable daily log files rotation<br />- _maxFiles_: maximum number of log files: https://github.com/winstonjs/winston-daily-rotate-file#options<br />- _maxSize_: maximum size of log files in bytes, or units of kb, mb, and gb: https://github.com/winstonjs/winston-daily-rotate-file#options |
+| worker | | {<br />"processType": "workerSet",<br />"startDelay": 500,<br />"elementAddDelay": 0,<br />"elementsPerWorker": 'auto',<br />"poolMinSize": 4,<br />"poolMaxSize": 16<br />} | {<br />processType?: WorkerProcessType;<br />startDelay?: number;<br />elementAddDelay?: number;<br />elementsPerWorker?: number \| 'auto' \| 'all';<br />poolMinSize?: number;<br />poolMaxSize?: number;<br />resourceLimits?: ResourceLimits;<br />} | Worker configuration section:<br />- _processType_: worker threads process type (`workerSet`/`fixedPool`/`dynamicPool`)<br />- _startDelay_: milliseconds to wait at worker threads startup (only for `workerSet` worker threads process type)<br />- _elementAddDelay_: milliseconds to wait between charging station add<br />- _elementsPerWorker_: number of charging stations per worker threads for the `workerSet` process type (`auto` means (number of stations) / (number of CPUs) \* 1.5 if (number of stations) > (number of CPUs), otherwise 1; `all` means a unique worker will run all charging stations)<br />- _poolMinSize_: worker threads pool minimum number of threads</br >- _poolMaxSize_: worker threads pool maximum number of threads<br />- _resourceLimits_: worker threads [resource limits](https://nodejs.org/api/worker_threads.html#new-workerfilename-options) object option |
+| uiServer | | {<br />"enabled": false,<br />"type": "ws",<br />"version": "1.1",<br />"options": {<br />"host": "localhost",<br />"port": 8080<br />}<br />} | {<br />enabled?: boolean;<br />type?: ApplicationProtocol;<br />version?: ApplicationProtocolVersion;<br />options?: ServerOptions;<br />authentication?: {<br />enabled: boolean;<br />type: AuthenticationType;<br />username?: string;<br />password?: string;<br />}<br />} | UI server configuration section:<br />- _enabled_: enable UI server<br />- _type_: 'http' or 'ws'<br />- _version_: HTTP version '1.1' or '2.0'<br />- _options_: node.js net module [listen options](https://nodejs.org/api/net.html#serverlistenoptions-callback)<br />- _authentication_: authentication type configuration section |
+| performanceStorage | | {<br />"enabled": true,<br />"type": "none",<br />} | {<br />enabled?: boolean;<br />type?: string;<br />uri?: string;<br />} | Performance storage configuration section:<br />- _enabled_: enable performance storage<br />- _type_: 'jsonfile', 'mongodb' or 'none'<br />- _uri_: storage URI |
+| stationTemplateUrls | | {}[] | {<br />file: string;<br />numberOfStations: number;<br />provisionedNumberOfStations?: number;<br />}[] | array of charging station templates URIs configuration section:<br />- _file_: charging station configuration template file relative path<br />- _numberOfStations_: template number of stations at startup<br />- _provisionedNumberOfStations_: template provisioned number of stations after startup |
#### Worker process model
- **dynamicPool** (experimental):
Dynamically sized worker pool executing a fixed total number of simulated charging stations
-### Charging station configuration template
+### Charging station template configuration
**src/assets/station-templates/\<name\>.json**:
### Version 2.x.x
-## UI protocol
+## UI Protocol
Protocol to control the simulator via a Websocket or HTTP server:
sequenceDiagram
Client->>UI Server: request
UI Server->>Client: response
-Note over UI Server,Client: Transport protocol: HTTP, Websocket
+Note over UI Server,Client: HTTP or Websocket
```
### Websocket Protocol
- Response:
`PDU`: {
- `status`: 'success' | 'failure'
+ `status`: 'success' | 'failure',
`state`: {
- `version`: string
- `started`: boolean
+ `version`: string,
+ `configuration`: ConfigurationData,
+ `started`: boolean,
`templateStatistics`: Record<string, TemplateStatistics>
}
}
- Response:
`PDU`: {
- `status`: 'success' | 'failure'
+ `status`: 'success' | 'failure',
+ `hashIdsSucceeded`: charging station unique identifier strings array (optional),
+ `hashIdsFailed`: charging station unique identifier strings array (optional)
}
###### Delete Charging Stations
- Response:
`PDU`: {
- `status`: 'success' | 'failure'
+ `status`: 'success' | 'failure',
`performanceStatistics`: Statistics[]
}
- Request:
`ProcedureName`: 'heartbeat'
`PDU`: {
- `hashIds`: charging station unique identifier strings array (optional, default: all charging stations),
+ `hashIds`: charging station unique identifier strings array (optional, default: all charging stations)
}
- Response: