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RePlay is a fork of the Play1 framework, created by Codeborne.

There is a newer version: 2.6.2

package play.data.validation;

import java.util.regex.Pattern;
import net.sf.oval.Validator;
import net.sf.oval.configuration.annotation.AbstractAnnotationCheck;
import net.sf.oval.context.OValContext;

public class URLCheck extends AbstractAnnotationCheck {

  static final String mes = "validation.url";
  static Pattern urlPattern =
      Pattern.compile(
          "^(http|https|ftp)://[a-zA-Z0-9\\-.]+\\.[a-zA-Z]{2,3}(:[a-zA-Z0-9]*)?/?([a-zA-Z0-9\\-._?,'/\\\\+&%$#=~!])*$");

  @Override
  public void configure(URL url) {
    setMessage(url.message());
  }

  @Override
  public boolean isSatisfied(
      Object validatedObject, Object value, OValContext context, Validator validator) {
    if (value == null || value.toString().isEmpty()) {
      return true;
    }
    return urlPattern.matcher(value.toString()).matches();
  }
}