package com.atlassian.plugins.rest.common.error.jersey;
   
   import javax.ws.rs.WebApplicationException;
   import javax.ws.rs.core.Context;
   import javax.ws.rs.core.Request;
   import javax.ws.rs.core.Response;
   import javax.ws.rs.ext.ExceptionMapper;
   import javax.ws.rs.ext.Provider;
   
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  /**
   * A generic exception mapper that will map any {@link Throwable throwable}.  Handles the special case of
   * {@link WebApplicationException}, which provides its own response.
   *
   * @since 1.0
   */
  @Provider
  public class ThrowableExceptionMapper implements ExceptionMapper<Throwable>
  {
      private static final Logger log = LoggerFactory.getLogger(ThrowableExceptionMapper.class);
  
      @Context
      Request request;
  
      public Response toResponse(Throwable t)
      {
          log.error("Uncaught exception thrown by REST service", t);
  
          if (t instanceof WebApplicationException)
          {
              return ((WebApplicationException)t).getResponse();
          }
          else
          {
              return Response.status(Response.Status.INTERNAL_SERVER_ERROR)
                      .entity(new UncaughtExceptionEntity(t))
                      .type(UncaughtExceptionEntity.variantFor(request))
                      .build();
          }
      }
  }