Micronaut：实现自定义信息endpoint元素

Question

我试图实现一个自定义元素，以便由Micronaut的Infoendpoint发布，但是当查询/Info时，不会出现自定义数据。使用Micronaut 2.4.0版。

以下是我到目前为止的代码：

• application.yml

[...]
endpoints:
  info:
    enabled: true
    sensitive: false
    git:
      enabled: true
[...]

null

dependencies {
  [...]
  implementation('io.micronaut:micronaut-management')
  [...]
}

null

import io.micronaut.context.env.MapPropertySource;
import io.micronaut.context.env.PropertySource;
import io.micronaut.management.endpoint.info.InfoSource;
import io.micronaut.runtime.context.scope.Refreshable;
import org.reactivestreams.Publisher;

import java.util.Map;
import java.util.Set;

import static io.reactivex.Flowable.just;

//@Singleton  // No success even with this annotation set
public class RegisteredUsersInfo implements InfoSource {

  // Business component to receive data from:
  private final SubjectMetadataDataSource subjectMetadataDataSource;

  public RegisteredUsersInfo(final SubjectMetadataDataSource subjectMetadataDataSource) {
    this.subjectMetadataDataSource = subjectMetadataDataSource;
  }

  @Override
  public Publisher<PropertySource> getSource() {
    return just(getUserPropertySource());
  }

  private PropertySource getUserPropertySource() {
    final Map<String, Set<String>> userProperties = 
           Map.of("knownID", subjectMetadataDataSource.listOfKnownUserIDs());
    return new MapPropertySource("user", userProperties);
  }

}

谢谢

基督徒

Answer 1

好的，在方法getUserPropertySource()中做以下细微的更改：

    [...]
    final Map<String, Set<String>> userProperties = 
          Map.of("knownID", Set.of("foo", "bar", "baz"));
    [...]

在查询/info时给出以下响应：

{
  "known-id": [
    "foo",
    "baz",
    "bar"
  ],
  [...]
}

所以我的“问题”的原因是SubjectMetadatadataSource.listofknownUserids()返回一个空的集！

    [...]
    final Map<String, Set<String>> userProperties = 
          Map.of("knownID", Set.of());
    [...]

{
  "known-id": [],
  [...]
}