将验证消息放入数据库 [英] Put validation messages into database

问题描述

我想放置Bean验证(JSR 303)例如使用的验证消息:

I want to put validation messages used by Bean Validation (JSR 303) ex.:

javax.validation.constraints.AssertFalse.message=must be false
javax.validation.constraints.AssertTrue.message=must be true ...

进入数据库，以便管理员添加新语言时，他可以添加该语言的翻译.

into a database so that when an administrator adds a new language he can adds the translations for that language.

我知道如何访问从数据库映射的资源包，但我不知道如何扩展/自定义bean验证类，以便它们可以从数据库访问验证消息...

I know how to access a resource bundle mapped from a database but I can't figure out how to extend/customize the bean validation classes so they can access the validation messages from a database...

能否获得我想要的东西?

Is it possible to obtain what I want ?

在此先感谢您引导我朝正确的方向前进.

Many thanks in advance for driving me into the right direction.

解决方案(我不知道这是否是最好的解决方案，但是它可以工作...):

HERE THE SOLUTION (I don't know if this is the best solution but it works...):

按照@gastaldi的建议，我已经在MessageInterpolator接口上创建了一个实现:

As suggested by @gastaldi I've created an implementation on MessageInterpolator interface:

package giates.validation;

import com.infomaxgroup.adaecommerce.bundles.DatabaseResourceBundle;
import java.util.Locale;
import java.util.Map;
import javax.validation.MessageInterpolator;

public class LocaleMessageInterpolator implements MessageInterpolator {
  protected final String BRACE_OPEN = "\\{";
  protected final String BRACE_CLOSE = "\\}";

  @Override
  public String interpolate(String message, Context context) {
    return interpolate(message, context, Locale.ITALIAN);
  }

  @Override
  public String interpolate(String message, Context context, Locale locale) {
    DatabaseResourceBundle bundle = new DatabaseResourceBundle(locale);
    String messageKey = context.getConstraintDescriptor().getAttributes().get("message").toString();
    message = bundle.getString(messageKey.replaceAll(BRACE_OPEN, "").replaceAll(BRACE_CLOSE, ""));
    Map<String, Object> attributes = context.getConstraintDescriptor().getAttributes();
    for (String key : attributes.keySet()) {
      String value = attributes.get(key).toString();
      key = BRACE_OPEN + key + BRACE_CLOSE;
      message = message.replaceAll(key, value);
    }
    return message;
  }
}

然后，我创建了META-INF/validation.xml并添加了自定义的messageinterpolator:

then I've created META-INF/validation.xml and added the customized messageinterpolator:

<?xml version="1.0" encoding="UTF-8"?>
<validation-config
    xmlns="http://jboss.org/xml/ns/javax/validation/configuration"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://jboss.org/xml/ns/javax/validation/configuration">
    <message-interpolator>giates.validation.LocaleMessageInterpolator</message-interpolator>
</validation-config>

我发布验证失败的模型后，插值器就会调用DatabaseResourceBundle并创建结果消息...

as soon as I post a model with failed validations the interpolator calls DatabaseResourceBundle and creates the resulting message...

一切正常！

推荐答案

您需要为此创建一个自定义的MessageInterpolator并在您的validateator.xml中进行配置

You need to create a customized MessageInterpolator for that and configure in your validator.xml

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