ExceptionHandlerController.java

package br.gov.servicos.editor.conteudo;

import br.gov.servicos.editor.conteudo.cartas.ConteudoInexistenteException;
import br.gov.servicos.editor.conteudo.cartas.ImportacaoXmlException;
import br.gov.servicos.editor.git.RepositorioEstadoInvalidoException;
import br.gov.servicos.editor.usuarios.UsuarioInexistenteException;
import org.springframework.http.HttpStatus;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.ResponseStatus;

import static org.springframework.http.HttpStatus.NOT_ACCEPTABLE;
import static org.springframework.http.HttpStatus.NOT_FOUND;

@ControllerAdvice
public class ExceptionHandlerController {
    @ExceptionHandler(ConteudoInexistenteException.class)
    @ResponseStatus(NOT_FOUND)
    @ResponseBody
    public String conteudoInexistente(ConteudoInexistenteException e) {
        return e.getMessage();
    }

    @ExceptionHandler(IllegalStateException.class)
    @ResponseStatus(NOT_ACCEPTABLE)
    @ResponseBody
    public String estadoInvalido(IllegalStateException e) {
        return e.getMessage();
    }

    @ExceptionHandler(IllegalArgumentException.class)
    @ResponseStatus(NOT_ACCEPTABLE)
    @ResponseBody
    public String argumentInvalido(IllegalArgumentException e) {
        return e.getMessage();
    }

    @ExceptionHandler(ImportacaoXmlException.class)
    @ResponseStatus(NOT_ACCEPTABLE)
    @ResponseBody
    public String erroImportacaoXml(ImportacaoXmlException e) {
        return e.getMessage();
    }

    @ExceptionHandler(UsuarioInexistenteException.class)
    @ResponseStatus(NOT_FOUND)
    @ResponseBody
    public String conteudoInexistente(UsuarioInexistenteException e) {
        return e.getMessage();
    }

    @ResponseStatus(value = HttpStatus.CONFLICT)
    @ExceptionHandler(RepositorioEstadoInvalidoException.class)
    public void repositorioEmEstadoInvalido(RepositorioEstadoInvalidoException e) {
        // apenas para retornar o código certo
    }
}