@ConditionalOnProperty on a Bean, which must be loaded based on two conditions, coming from application.yml config file

Question

I'm facing this kind of issue now, that I must give two conditions in one @ConditionalOnProperty which is class level.

I have a bean, say

@RestController
@RequestMapping("/blablabla")
@ConditionalOnProperty(prefix = "my.property.value1", name = "enabled", havingValue = "true")
public class MyBean{}

now there is a requirement that MyBean must be loaded based on two conditions, one is my.property.value1.enabled:true and the second is my.property.value2:true (both coming from application.yml file)

Now my question is there any way of doing this in one @ConditionalOnProperty annotation, if yes, so please paste here the working example. Thanks in advance.

score 2 · Answer 1 · answered Sep 06 '21 at 21:03

2

For simple boolean properties you could use @ConditionalOnProperty:

@ConditionalOnProperty({"my.property.value1", "my.property.value2"})

application.yml:

my:
  property:
    value1: true
    value2: false

answered Sep 06 '21 at 21:03

lkatiforis

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score 1 · Answer 2 · answered Sep 06 '21 at 19:15

1

Yes, you can do the following:

@ConditionalOnExpression("${my.property.value1.enabled} and ${my.property.value2}")

answered Sep 06 '21 at 19:15

João Dias

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If it helped you and you fell like you can upvote it ;) – João Dias Sep 06 '21 at 19:24

score 1 · Answer 3 · answered Sep 06 '21 at 19:19

1

The @ConditionalProperty name element can support an array:

@ConditionalOnProperty(prefix = "my.property", name = {"value1.enabled", "value2.enabled"}, havingValue = "true")

If the two properties are compared to different values, then you can leverage a Spring expression:

@ConditionalOnExpression("${my.property.value1.enabled} == true and ${my.property.value1.enabled} == true")

answered Sep 06 '21 at 19:19

M A

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ok, does ConditionalOnExpression support conditions from application.yml file ? or only from .properties file? – Hayk Mkhitaryan Sep 06 '21 at 19:22
@HaykMkhitaryan Yes it does. – M A Sep 06 '21 at 19:29
@HaykMkhitaryan https://stackoverflow.com/questions/47462950/application-yml-vs-application-properties-for-spring-boot – M A Sep 06 '21 at 19:34
Caused by: org.springframework.beans.factory.BeanExpressionException: Expression parsing failed; nested exception is org.springframework.expression.spel.SpelParseException: EL1041E: After parsing a valid expression, there is still more data in the expression: 'lcurly({)' – Hayk Mkhitaryan Sep 06 '21 at 20:03
I am getting this kind of exception, in two cases – Hayk Mkhitaryan Sep 06 '21 at 20:03
@ConditionalOnExpression("${my.property.value1.enabled} == true and ${my.property.value1.enabled} == true") – Hayk Mkhitaryan Sep 06 '21 at 20:04
@ConditionalOnProperty(prefix = "my.property", name = {"value1.enabled", "value2.enabled"}, havingValue = "true") – Hayk Mkhitaryan Sep 06 '21 at 20:04
@HaykMkhitaryan What is the content of your yml config file? – M A Sep 07 '21 at 13:09

@ConditionalOnProperty on a Bean, which must be loaded based on two conditions, coming from application.yml config file

3 Answers3