Fix Wrong/Missing Log Levels in application.properties

[angelozerr]

See redhat-developer/vscode-quarkus#315

Signed-off-by: azerr azerr@redhat.com

[angelozerr]

For Quarkus side please use the PR redhat-developer/quarkus-ls#370 too

[angelozerr]

This PR gives the capability to manage JUL Level with Spring Boot Metadata "hints" mechanism. The current mechanism uses https://github.com/eclipse/lsp4mp/blob/master/microprofile.ls/org.eclipse.lsp4mp.ls/src/main/resources/org/eclipse/lsp4mp/model/values/quarkus-values-rules.json I removed this file and now Level are managed by the MicroProfile JDT instead by MicroProfile LS.

It provides several capabilities:

1. go to the definition for Level from properties file is now available.
2. we can add according the classpath some external Level (ex: JBoss Logging Manager adds new Level)
3. mark some property (ex: String property) which must handle as another type (ex : quarkus.log.category.{*}.level which is a String must handle as java.util.logging.Level -> see https://github.com/redhat-developer/quarkus-ls/pull/370/files#diff-ea1c0c5a51be19a47fe421492cf810305f16548c5528e8da2933c27d8bc902c2R4

Here a demo with 1 and 2). To test it create a MicroProfile project with Open Liberty and create the following class:

package com.example.demo.resilient;

import java.util.logging.Level;

import org.eclipse.microprofile.config.inject.ConfigProperty;

public class Test {

  @ConfigProperty(name="mylog.level")
  private Level level;
}

and see the follwing demo:

[datho7561]

Looks good. There was just a class that I didn't understand that I think could be documented better.

[datho7561]

I don't understand what this class represents. Specifically, I don't know what parameters represents in relation to providing a value for a property. I think it could be better explained in the Javadoc.

[angelozerr]

Yes you are right, I will do that. I used the same concept that Spring Boot metadata https://docs.spring.io/spring-boot/docs/current/reference/html/appendix-configuration-metadata.html#configuration-metadata-hints-attributes

[angelozerr]

@datho7561 I have add links to Spring Boot metadata. Please tell me if it's enough.

[angelozerr]

Thanks @datho7561 for your great review!