Modules Ext

Extends or overrides Liferay’s core OSGi services (e.g., UserLocalService).

• Modify default Liferay behavior without touching core code.
• Example: Log every new user registration.

Implementation

Create the Extension

blade create -t modules-ext user-audit-ext

Override a Core Service

user-audit-ext/src/main/java/com/example/useraudit/CustomUserLocalService.java

@Component(service = UserLocalService.class)
public class CustomUserLocalService extends UserLocalServiceWrapper {
    @Override
    public User addUser(...) throws PortalException {
        System.out.println("New user created: " + emailAddress);
        return super.addUser(...);  // Call original logic
    }
}

Use Cases

• Audit Logs: Track user creations/deletions.
• Validation: Enforce custom rules (e.g., ban disposable emails).

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