Spring Condition not able to read value from property file

Question

I am trying to implement Spring Condition org.springframework.context.annotation.Conditionas follows:

public class APIScanningDecisionMaker implements Condition {

   @Override
   public boolean matches(ConditionContext context, AnnotatedTypeMetadata metadata) {

    // Not able to read the property "swagger.scanner.can.run". It is always NULL.
    String canRunFlagInStr = context.getEnvironment().getProperty("swagger.scanner.can.run");
   // Ignore the rest of the code.
   }
}

However, as shown in the above code, when I read the property "swagger.scanner.can.run" it is always NULL. In my property file I have set it to "swagger.scanner.can.run=false".

I also tried to use the @Value("${swagger.scanner.can.run}") but even that returns NULL. When I put a debug in this method I can see that it is being called.

Just for the sake of completion I am using the APIScanningDecisionMaker as follows:

@Configuration
@EnableSwagger
@Conditional(APIScanningDecisionMaker.class)
public class CustomSwaggerConfig {
  // Ignore the rest of the code
}

Is there any reason why "swagger.scanner.can.run" is being retrieved as NULL?

Answer 1

Maybe spring doesn't know the file ?

This can be fix on annotated your class where the @Value("${swagger.scanner.can.run}")is used :

@PropertySource(value="classpath:config.properties")

Regards,