play.i18n.MessagesImpl java code examples

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private void myMethod () {
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}

/**
 * Get a messages context appropriate for the given request.
 *
 * Will select a language from the request, based on the languages available, and fallback to the default language
 * if none of the candidates are available.
 *
 * @param request the incoming request
 * @return the preferred messages context for the request
 */
public Messages preferred(Http.RequestHeader request) {
  play.api.i18n.Messages msgs = messages.preferred(request);
  return new MessagesImpl(new Lang(msgs.lang()), this);
}

/**
 * Get a messages context appropriate for the given request.
 *
 * Will select a language from the request, based on the languages available, and fallback to the default language
 * if none of the candidates are available.
 *
 * @param request the incoming request
 * @return the preferred messages context for the request
 */
public Messages preferred(Http.RequestHeader request) {
  play.api.i18n.Messages msgs = messages.preferred(request);
  return new MessagesImpl(new Lang(msgs.lang()), this);
}

/**
 * Get a messages context appropriate for the given request.
 *
 * Will select a language from the request, based on the languages available, and fallback to the default language
 * if none of the candidates are available.
 *
 * @param request the incoming request
 * @return the preferred messages context for the request
 */
public Messages preferred(Http.RequestHeader request) {
  play.api.i18n.Messages msgs = messages.preferred(request);
  return new MessagesImpl(new Lang(msgs.lang()), this);
}

/**
 * Get a messages context appropriate for the given candidates.
 *
 * Will select a language from the candidates, based on the languages available, and fallback to the default language
 * if none of the candidates are available.
 *
 * @param candidates the candidate languages
 * @return the most appropriate Messages instance given the candidate languages
 */
public Messages preferred(Collection<Lang> candidates) {
  Seq<Lang> cs = Scala.asScala(candidates);
  play.api.i18n.Messages msgs = messages.preferred((Seq)cs);
  return new MessagesImpl(new Lang(msgs.lang()), this);
}

/**
 * Get a messages context appropriate for the given candidates.
 *
 * Will select a language from the candidates, based on the languages available, and fallback to the default language
 * if none of the candidates are available.
 *
 * @param candidates the candidate languages
 * @return the most appropriate Messages instance given the candidate languages
 */
public Messages preferred(Collection<Lang> candidates) {
  Seq<Lang> cs = Scala.asScala(candidates);
  play.api.i18n.Messages msgs = messages.preferred((Seq)cs);
  return new MessagesImpl(new Lang(msgs.lang()), this);
}

/**
 * Get a messages context appropriate for the given candidates.
 *
 * Will select a language from the candidates, based on the languages available, and fallback to the default language
 * if none of the candidates are available.
 *
 * @param candidates the candidate languages
 * @return the most appropriate Messages instance given the candidate languages
 */
public Messages preferred(Collection<Lang> candidates) {
  Seq<Lang> cs = Scala.asScala(candidates);
  play.api.i18n.Messages msgs = messages.preferred((Seq)cs);
  return new MessagesImpl(new Lang(msgs.lang()), this);
}

private Set<ConstraintViolation<Object>> runValidation(Lang lang, TypedMap attrs, DataBinder dataBinder, Map<String, Object> objectData) {
  return withRequestLocale(lang, () -> {
    dataBinder.bind(new MutablePropertyValues(objectData));
    final ValidationPayload payload = new ValidationPayload(lang, lang != null ? new MessagesImpl(lang, this.messagesApi) : null, Http.Context.safeCurrent().map(ctx -> ctx.args).orElse(null), attrs, this.config);
    final Validator validator = validatorFactory.unwrap(HibernateValidatorFactory.class).usingContext().constraintValidatorPayload(payload).getValidator();
    if (groups != null) {
      return validator.validate(dataBinder.getTarget(), groups);
    } else {
      return validator.validate(dataBinder.getTarget());
    }
  });
}

private Set<ConstraintViolation<Object>> runValidation(Lang lang, TypedMap attrs, DataBinder dataBinder, Map<String, Object> objectData) {
  return withRequestLocale(lang, () -> {
    dataBinder.bind(new MutablePropertyValues(objectData));
    final ValidationPayload payload = new ValidationPayload(lang, lang != null ? new MessagesImpl(lang, this.messagesApi) : null, Http.Context.safeCurrent().map(ctx -> ctx.args).orElse(null), attrs, this.config);
    final Validator validator = validatorFactory.unwrap(HibernateValidatorFactory.class).usingContext().constraintValidatorPayload(payload).getValidator();
    if (groups != null) {
      return validator.validate(dataBinder.getTarget(), groups);
    } else {
      return validator.validate(dataBinder.getTarget());
    }
  });
}

private Set<ConstraintViolation<Object>> runValidation(Lang lang, TypedMap attrs, DataBinder dataBinder, Map<String, Object> objectData) {
  return withRequestLocale(lang, () -> {
    dataBinder.bind(new MutablePropertyValues(objectData));
    final ValidationPayload payload = new ValidationPayload(lang, lang != null ? new MessagesImpl(lang, this.messagesApi) : null, Http.Context.safeCurrent().map(ctx -> ctx.args).orElse(null), attrs, this.config);
    final Validator validator = validatorFactory.unwrap(HibernateValidatorFactory.class).usingContext().constraintValidatorPayload(payload).getValidator();
    if (groups != null) {
      return validator.validate(dataBinder.getTarget(), groups);
    } else {
      return validator.validate(dataBinder.getTarget());
    }
  });
}

private List<ValidationError> getFieldErrorsAsValidationErrors(Lang lang, BindingResult result) {
  return result.getFieldErrors().stream().map(error -> {
    String key = error.getObjectName() + "." + error.getField();
    if (key.startsWith("target.") && rootName == null) {
      key = key.substring(7);
    }
    if (error.isBindingFailure()) {
      ImmutableList.Builder<String> builder = ImmutableList.builder();
      final Messages msgs = lang != null ? new MessagesImpl(lang, this.messagesApi) : null;
      for (String code: error.getCodes()) {
        code = REPLACE_TYPEMISMATCH.matcher(code).replaceAll(Matcher.quoteReplacement(INVALID_MSG_KEY));
        if (msgs == null || msgs.isDefinedAt(code)) {
          builder.add(code);
        }
      }
      final ImmutableList<String> messages = builder.build();
      return new ValidationError(key, messages.isEmpty() ? Arrays.asList(INVALID_MSG_KEY) : messages.reverse(),
          convertErrorArguments(error.getArguments()));
    } else {
      return new ValidationError(key, error.getDefaultMessage(),
          convertErrorArguments(error.getArguments()));
    }
  }).collect(Collectors.toList());
}

private List<ValidationError> getFieldErrorsAsValidationErrors(Lang lang, BindingResult result) {
  return result.getFieldErrors().stream().map(error -> {
    String key = error.getObjectName() + "." + error.getField();
    if (key.startsWith("target.") && rootName == null) {
      key = key.substring(7);
    }
    if (error.isBindingFailure()) {
      ImmutableList.Builder<String> builder = ImmutableList.builder();
      final Messages msgs = lang != null ? new MessagesImpl(lang, this.messagesApi) : null;
      for (String code: error.getCodes()) {
        code = REPLACE_TYPEMISMATCH.matcher(code).replaceAll(Matcher.quoteReplacement(INVALID_MSG_KEY));
        if (msgs == null || msgs.isDefinedAt(code)) {
          builder.add(code);
        }
      }
      final ImmutableList<String> messages = builder.build();
      return new ValidationError(key, messages.isEmpty() ? Arrays.asList(INVALID_MSG_KEY) : messages.reverse(),
          convertErrorArguments(error.getArguments()));
    } else {
      return new ValidationError(key, error.getDefaultMessage(),
          convertErrorArguments(error.getArguments()));
    }
  }).collect(Collectors.toList());
}

private List<ValidationError> getFieldErrorsAsValidationErrors(Lang lang, BindingResult result) {
  return result.getFieldErrors().stream().map(error -> {
    String key = error.getObjectName() + "." + error.getField();
    if (key.startsWith("target.") && rootName == null) {
      key = key.substring(7);
    }
    if (error.isBindingFailure()) {
      ImmutableList.Builder<String> builder = ImmutableList.builder();
      final Messages msgs = lang != null ? new MessagesImpl(lang, this.messagesApi) : null;
      for (String code: error.getCodes()) {
        code = REPLACE_TYPEMISMATCH.matcher(code).replaceAll(Matcher.quoteReplacement(INVALID_MSG_KEY));
        if (msgs == null || msgs.isDefinedAt(code)) {
          builder.add(code);
        }
      }
      final ImmutableList<String> messages = builder.build();
      return new ValidationError(key, messages.isEmpty() ? Arrays.asList(INVALID_MSG_KEY) : messages.reverse(),
          convertErrorArguments(error.getArguments()));
    } else {
      return new ValidationError(key, error.getDefaultMessage(),
          convertErrorArguments(error.getArguments()));
    }
  }).collect(Collectors.toList());
}

Javadoc

This class implements the Messages interface. This class serves two purposes. One is for backwards compatibility, it serves the old static API for accessing messages. The other is a new API, which carries an inject messages, and a selected language. The methods for looking up messages on the old API are called get, on the new API, they are called at. In Play 3.0, when we remove the old API, we may alias the at methods to the get names.

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How to useMessagesImpl in play.i18n

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