## Description
- Add changes to address the`StaleConnection` exception caused by MySQL plugin.
- Update MySQL driver version.
- Other refactor changes not related to the main issue:
- Explicit empty constructor definition is replaced with Lombok annotation for all error messages class.
- A base class is created for plugin error messages class to store all common error messages.
- Fix Indentation.
Solves a single thing in the build configurations, resulting in a few
wins.
1. Reduced number of warnings in the output.
1. In release branch:
```
mvn clean package -DskipTests | grep --fixed-strings --count '[WARNING]'
3233
```
1. In this PR's branch:
```
mvn clean package -DskipTests | grep --fixed-strings --count '[WARNING]'
172
```
2. All uber-jar files are shaded twice, currently. Once with the default
execution of `maven-shade-plugin`, and again with the `shade-plugin-jar`
execution in these `pom.xml` files. This is double-work, and is the
cause of most of the warnings we see.
1. This `shade-plugin-jar` was added to have the plugin information
included in the `/META-INF/MANIFEST.MF` file, since we can't configure
the default execution of the shade plugin (it comes to us from Spring
Boot).
2. Instead, we switch to configuring plugin information in a
`/plugin.properties` file.
3. Previously, we used `/plugin.properities` for plugin information in
dev time, and `/META-INF/MANIFEST.MF` in production. This PR will change
it so that we use `/plugin.properties` all the time. We configure PF4J
with a custom plugin manager to achieve this.
3. Moved all `plugin.properties` into `src/main/resources`, so that they
land up in the root of the final jar files. But this means, during
development, loading the plugin fails since it looks for a
`plugin.properties` at the root of the plugin module, i.e., next to the
`src` folder.
1. For this, in the custom plugin manager class, we change where we look
for the `plugin.properties` file during development mode. In this mode,
we look at the `target/classes/plugin.properties` file, which is where
maven saves this file, taken from
`src/main/resources/plugin.properties`.
2. This also solves the duplication of the plugin properties that's
currently present, between `plugin.properties` and the `<properties>`
section of `pom.xml` files.
Here's the shade plugin's default execution and configuration, from
Spring Boot:
https://github.com/spring-projects/spring-boot/blob/v3.0.1/spring-boot-project/spring-boot-starters/spring-boot-starter-parent/build.gradle#L174.
- Add connection pool to MySQL
- Fix JUnit TC failures due to Spring upgrade
- Fix Cypress TC failures due to change in the MySQL plugin code
- Remove `Preferred` SSL option
This upgrade takes care of our move to JDK 17, Spring Boot 3.0.1 and a
few other security upgrades along the way.
Fixes#18993
TODO:
- [x] Check CI changes for Java 17
- [x] Check vulnerability report
- [x] Mongock needs an upgrade
- [x] Add JVM args at all possible places for exposing java.time module
- [x] Add type adapters everywhere / use the same config for type
adapters everywhere
On macOS, when running a MySQL query, we see the following error:
```
java.lang.ClassCastException: class io.netty.channel.kqueue.KQueueEventLoopGroup cannot be cast to class io.netty.channel.EventLoopGroup
```
This is because of a `LinkageError`, caused because these classes exist both in the parent `server` module classpath, as well as in this plugin's classpath separately. To fix this, we removed this dependency from the server module.
But then, this caused a problem with how the `DNSResolver` class was being, well, resolved by the application class loader, vs the plugin class loader. This is a macOS specific problem, and doesn't affect other operating systems.
For this, we add just this package as a dependency to the MySQL plugin.
1. Add R2BC driver and remove JDBC driver usage in mysql plugin to make the plugin reactive.
2. Update dependencies in POM file.
3. Update mysql plugin to return result based on the type of sql query i.e select vs other queries. In case the queries are chained, then the last query is used for deciding the type.
4. Added a new TC for testing datasource and removed a non functional TC.
The plugin class loader from Pf4J looks for jars under target/lib
to use to load any classes that are missing target/classes. This
PR adds the `maven-dependency-plugin` to copy the jars to this
folder automatically so the classes are available during
development.
This commit adds the Mysql plugin to the Appsmith server. We also add a migration to ensure that this plugin is installed by default for all existing organizations. The migration also adds the plugin details into the DB.
Also adding the test cases for mysql plugin.
Co-authored-by: Arpit Mohan <arpit@appsmith.com>
Co-authored-by: Hetu Nandu <hetu@appsmith.com>
Co-authored-by: Arpit Mohan <me@arpitmohan.com>
Co-authored-by: Nupur Singhal <nupursinghal@Nupurs-MacBook-Air.local>
