Package ru.vyarus.guicey.gsp.app.rest.support

Class DirectTemplateExceptionMapper

java.lang.Object
ru.vyarus.guicey.gsp.app.rest.support.DirectTemplateExceptionMapper
All Implemented Interfaces:
jakarta.ws.rs.ext.ExceptionMapper<jakarta.ws.rs.NotFoundException>, org.glassfish.jersey.spi.ExtendedExceptionMapper<jakarta.ws.rs.NotFoundException>
@Provider public class DirectTemplateExceptionMapper extends Object implements org.glassfish.jersey.spi.ExtendedExceptionMapper<jakarta.ws.rs.NotFoundException>
NotFoundException thrown by jersey when matching rest path not found. Exception mapper detects it and if it is template call tries to render template directly instead.

Handler is applied to all rest, but as its an extended mapper, it will not influence normal rest calls.

NOTE: application may declare different exception mapper for NotFoundException and so it may override this mapper. It is highly unlikely, but still could happen.

Another drawback is template rendering errors will be unreachable for default dropwizard exception mapper (IllegalStateExceptionMapper which logs all rest exceptions. But this is compensated by direct exception error logging.

Since:
06.12.2019

  • Constructor Details

    • DirectTemplateExceptionMapper

      public DirectTemplateExceptionMapper()

  • Method Details

    • isMappable

      public boolean isMappable(jakarta.ws.rs.NotFoundException exception)
      Specified by:
      isMappable in interface org.glassfish.jersey.spi.ExtendedExceptionMapper<jakarta.ws.rs.NotFoundException>

    • toResponse

      public jakarta.ws.rs.core.Response toResponse(jakarta.ws.rs.NotFoundException exception)
      Specified by:
      toResponse in interface jakarta.ws.rs.ext.ExceptionMapper<jakarta.ws.rs.NotFoundException>

    • canHandle

      protected static boolean canHandle(org.glassfish.jersey.server.monitoring.RequestEvent event)
      Exception event first will be caught by listener, and it must not handle it initially. Then this exception mapper (which should be chosen as the closest match) will render direct template. If template rendering fails then exception will be redirected directly to error mapper. If it was already error rendering then 404 or 500 will be returned directly.

      As a side effect, template rendering errors will be impossible to intercept with custom exception mappers.

      Parameters:
      event - exception event
      Returns:
      true if exception mapper will handle exception (render direct template), false otherwise

    • detectLocale

      protected Locale detectLocale()