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package gov.hi.dhs.fmm.lib.db; import gov.hi.dhs.fmm.lib.exceptions.ClientErrorException; import org.aspectj.lang.ProceedingJoinPoint; import org.aspectj.lang.annotation.Around; import org.aspectj.lang.annotation.Aspect; import org.springframework.dao.DataIntegrityViolationException; /** * Due to the nature of the @Around annotation, there can only be one concrete extension of this * class at anytime */ @Aspect public abstract class AbstractPersistenceExceptionInterceptor { /** * Wraps method to catch database persistence related errors and handle them * * @param pjp {@link ProceedingJoinPoint} * @param interceptPersistenceException {@link InterceptPersistenceException}, contains entity * specific translator class * @return join point proceed * @throws Throwable for exception */ @Around(value = "@annotation(interceptPersistenceException)") public Object handlePersistenceException( ProceedingJoinPoint pjp, InterceptPersistenceException interceptPersistenceException) throws Throwable { try { return pjp.proceed(); } catch (DataIntegrityViolationException e) { throw handleDataIntegrityViolationException( interceptPersistenceException.translator(), e.getMostSpecificCause().getMessage()); } } /** * Wraps method to catch database persistence related errors and handle them * * @param translatorClass ConstraintTranslator class which will be instantiated in this method. * NOTE: Due to coming from annotation, the amount of generic typing that we can perform is * limited. * @param errorMessage message taken from root cause of {@link DataIntegrityViolationException} * @return ClientErrorException with user friendly message * @throws IllegalAccessException for instancing translator class * @throws InstantiationException for instancing translator class */ protected abstract ClientErrorException handleDataIntegrityViolationException( Class<? extends ConstraintTranslator<?>> translatorClass, String errorMessage) throws IllegalAccessException, InstantiationException; }

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