Spring Boot @ConditionalOnProperty value in array

I have an application that needs to run for multiple tenants. There is some validation logic, but not all tenants have the same checks.

I would like to have a list of strings in my application.yml and conditional beans implementing the same interface that check if a certain string is contained:

application.yml

my-app:
  checks:
    check-one,
    check-two

Bean

@Component
@ConditionalOnProperty(value = "my-app.checks", havingValue = "check-one")
public class CheckOne implements Check {}

But this doesn't seem to work.

Do I really have to use something like this (which works):

my-app:
  checks:
    check-one: true
    check-two: true

And then @ConditionalOnProperty(value = "my-app.checks.check-one", havingValue = "true")

Solution

Based on @pebble units comment I made a custom annotation:

Annotation

@Retention(RetentionPolicy.RUNTIME)
@Target({ElementType.TYPE, ElementType.METHOD})
@Documented
@Conditional({OnPropertyContains.class})
public @interface ConditionalOnPropertyContains {
  String containsValue();

  String name();
}

Implementation

public class OnPropertyContains extends SpringBootCondition {
  OnPropertyContains() {}

  @Override
  public ConditionOutcome getMatchOutcome(
      final ConditionContext context, final AnnotatedTypeMetadata metadata) {
    final String name =
        (String)
            metadata
                .getAnnotationAttributes(ConditionalOnPropertyContains.class.getName())
                .get("name");
    final String value =
        (String)
            metadata
                .getAnnotationAttributes(ConditionalOnPropertyContains.class.getName())
                .get("containsValue");
    final Environment env = context.getEnvironment();
    final String[] values = env.getProperty(name, String[].class, new String[0]);
    if (Arrays.asList(values).contains(value)) {
      return ConditionOutcome.match();
    }
    return ConditionOutcome.noMatch("Property '" + name + "' does not contain '" + value + "'");
  }
}

Usage

@ConditionalOnPropertyContains(name= "my-app.checks", containsValue = "check-one")