A Java EE 8 web application for managing beam time at Jefferson Lab built with the Smoothness web template.
The Beam Time Manager application allows crew chiefs and experimenters to track machine time accounting while allowing management to review reports. The app prompts crew chiefs and experimenters with shift timesheets pre-filled with data estimated via beam position sensor measurements. The app also holds a database view of the PAC schedule, exposes programmatic access via a JSON REST service, and integrates with Program Deputy shift plans and DTM to enable prompting timekeepers with the expected plan as well. The timesheets therefore consist of Planned, Measured, and Reported values.
- Grab project
git clone https://github.com/JeffersonLab/btm
cd btm
- Launch Compose
docker compose up
- Navigate to page
http://localhost:8080/btm
Note: Login with demo username "tbrown" and password "password".
This application requires a Java 11+ JVM and standard library to run, plus a Java EE 8+ application server (developed with Wildfly).
- Install service dependencies
- Download Wildfly 26.1.3
- Configure Wildfly and start it
- Download btm.war and deploy it to Wildfly
- Navigate your web browser to localhost:8080/btm
Wildfly must be pre-configured before the first deployment of the app. The wildfly bash scripts can be used to accomplish this. See the Dockerfile for an example.
Note: In production users often leave multiple instances of the app open per counting house and concurrent hourly refreshes may result in concurrent DB request contention for the BTM connection pool. Bumping up the max allowed concurrent DB connections can ameliorate this.
Uses the Smoothness Environment Variables plus the following application specific:
| Name | Description |
|---|---|
| LOGBOOK_DEBUG | If set to "true" then TLOG is used as logbook |
| BTM_EPICS_ADDR_LIST | EPICS CA Address List for obtaining time keeping measurements. |
This project is built with Java 17 (compiled to Java 11 bytecode), and uses the Gradle 7 build tool to automatically download dependencies and build the project from source:
git clone https://github.com/JeffersonLab/btm
cd btm
gradlew build
Note: If you do not already have Gradle installed, it will be installed automatically by the wrapper script included in the source
Note for JLab On-Site Users: Jefferson Lab has an intercepting proxy
See: Docker Development Quick Reference
In order to iterate rapidly when making changes it's often useful to run the app directly on the local workstation, perhaps leveraging an IDE. In this scenario run the service dependencies with:
docker compose -f deps.yml up
Note: The local install of Wildfly should be configured to proxy connections to services via localhost and therefore the environment variables should contain:
KEYCLOAK_BACKEND_SERVER_URL=http://localhost:8081
FRONTEND_SERVER_URL=https://localhost:8443
BTM_EPICS_ADDR_LIST=localhost
Further, the local DataSource must also leverage localhost port forwarding so the standalone.xml connection-url field should be: jdbc:oracle:thin:@//localhost:1521/xepdb1.
The server and app setup scripts can be used to setup a local instance of Wildfly.
- Bump the version number in the VERSION file and commit and push to GitHub (using Semantic Versioning).
- The CD GitHub Action should run automatically invoking:
- The Create release GitHub Action to tag the source and create release notes summarizing any pull requests. Edit the release notes to add any missing details. A war file artifact is attached to the release.
- The Publish docker image GitHub Action to create a new demo Docker image, and bump the compose.override.yaml to use the new image.
- The Deploy to JLab GitHub Action to deploy to the JLab test environment.
The deploy to JLab's acctest is handled automatically via the release workflow.
At JLab this app is found at ace.jlab.org/btm and internally at acctest.acc.jlab.org/btm. However, those servers are proxies for wildfly5.acc.jlab.org and wildflytest5.acc.jlab.org respectively. A deploy script is provided on each server to automate wget and deploy. Example:
/root/setup/deploy.sh btm v1.2.3
JLab Internal Docs: InstallGuideWildflyRHEL9