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org.resthub.web.ResthubExceptionHandler Maven / Gradle / Ivy
RESThub support for REST webservices based on Spring MVC
package org.resthub.web;
import org.resthub.common.exception.NotFoundException;
import org.resthub.common.exception.NotImplementedException;
import org.resthub.common.model.RestError;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.context.request.WebRequest;
import org.springframework.web.servlet.mvc.method.annotation.ResponseEntityExceptionHandler;
import javax.xml.bind.ValidationException;
/**
* RESThub default exception handler for most common exceptions.
*/
@ControllerAdvice
public class ResthubExceptionHandler extends ResponseEntityExceptionHandler {
@ExceptionHandler(value={
IllegalArgumentException.class,
ValidationException.class,
NotFoundException.class,
NotImplementedException.class
})
public ResponseEntity handleCustomException(Exception ex, WebRequest request) {
HttpHeaders headers = new HttpHeaders();
if (ex instanceof IllegalArgumentException) {
HttpStatus status = HttpStatus.BAD_REQUEST;
return handleIllegalArgument((IllegalArgumentException) ex, headers, status, request);
}
else if (ex instanceof ValidationException) {
HttpStatus status = HttpStatus.BAD_REQUEST;
return handleValidation((ValidationException) ex, headers, status, request);
}
else if (ex instanceof NotFoundException) {
HttpStatus status = HttpStatus.NOT_FOUND;
return handleNotFound((NotFoundException) ex, headers, status, request);
}
else if (ex instanceof NotImplementedException) {
HttpStatus status = HttpStatus.NOT_IMPLEMENTED;
return handleNotImplemented((NotImplementedException) ex, headers, status, request);
} else {
logger.warn("Unknown exception type: " + ex.getClass().getName());
HttpStatus status = HttpStatus.INTERNAL_SERVER_ERROR;
return handleExceptionInternal(ex, null, headers, status, request);
}
}
protected ResponseEntity handleIllegalArgument(IllegalArgumentException ex, HttpHeaders headers, HttpStatus status, WebRequest request) {
RestError.Builder builder = new RestError.Builder();
builder.setCode(status.value());
builder.setStatus(status.getReasonPhrase());
builder.setThrowable(ex);
return handleExceptionInternal(ex, builder.build(), headers, status, request);
}
protected ResponseEntity handleValidation(ValidationException ex, HttpHeaders headers, HttpStatus status, WebRequest request) {
RestError.Builder builder = new RestError.Builder();
builder.setCode(status.value()).setStatus(status.getReasonPhrase()).setThrowable(ex);
return handleExceptionInternal(ex, builder.build(), headers, status, request);
}
protected ResponseEntity handleNotFound(NotFoundException ex, HttpHeaders headers, HttpStatus status, WebRequest request) {
RestError.Builder builder = new RestError.Builder();
builder.setCode(status.value()).setStatus(status.getReasonPhrase()).setThrowable(ex);
return handleExceptionInternal(ex, builder.build(), headers, status, request);
}
protected ResponseEntity handleNotImplemented(NotImplementedException ex, HttpHeaders headers, HttpStatus status, WebRequest request) {
RestError.Builder builder = new RestError.Builder();
builder.setCode(status.value()).setStatus(status.getReasonPhrase()).setThrowable(ex);
return handleExceptionInternal(ex, builder.build(), headers, status, request);
}
}
