How to inject dependency dynamically based on profile in spring boot

Question

Let's say I have below setup, one interface I have has one method addTaxTrans():

public interface TaxTransInterface {

    Response<Map<String, Object>> addTaxTrans(Long sessionId, TaxMap taxMap);

}

I have two classes implemented with this interface.

First impementation for client1

@Component
public class Client1TaxImpl implements TaxTransInterface {

    @Override
    public Response<Map<String, Object>> addTaxTrans(Long sessionId, TaxMap taxMap) {
        // Common code + client 1 customization code
    }
}

Second implementation for client 2

@Component
public class Client2TaxImpl implements TaxTransInterface {

    @Override
    public Response<Map<String, Object>> addTaxTrans(Long sessionId, TaxMap taxMap) {

        // Common code + Client 2 customization code
    }
}

Below is the service implementation, here I have autowired TaxTransInterface and calling addTaxtrans method:

@Service
public class TaxSerImpl implements TaxSer {

    @Autowired
    private TaxTransInterface taxTransInterface;

    @Override
    @Transactional(rollbackFor = Exception.class)
    public Response<Map<String, Object>> addTax(TaxReq taxReq) {

        // Calling Trans Function
        return taxTransInterface.addTaxTrans(taxReq.getSessionId(), 
                        taxReq.getTaxMap());
    }
}

As of now I am not able to run the project getting below error:

Field taxTransInterface required a single bean, but 2 were found:

I know this error comes because two implementations I have for interface TaxTransInterface

So do we have any option like dynamically when I run application by below command for profile client1:

java -jar -Dspring.profiles.active=client1 sbill-0.0.1-SNAPSHOT.war

then dynamically Client1TaxImpl should get inject and when run application for client2 then Client2TaxImpl should get injected.

Any suggestions?

Thanks in advance.

Answer 1

Annotate your @Component class with @Profile("profilename") so the component will be injected based on the profile.