nl.vpro.validation.NoHtmlValidator Maven / Gradle / Ivy
/*
* Copyright (C) 2011 All rights reserved
* VPRO The Netherlands
*/
package nl.vpro.validation;
import jakarta.validation.ConstraintValidator;
import jakarta.validation.ConstraintValidatorContext;
import nl.vpro.util.TextUtil;
public class NoHtmlValidator implements ConstraintValidator {
boolean aggressive = true;
@Override
public void initialize(NoHtml annotation) {
aggressive = annotation.aggressive();
}
@Override
public boolean isValid(Object value, ConstraintValidatorContext constraintValidatorContext) {
if (value == null) {
return true;
}
if (value instanceof CharSequence string) {
return TextUtil.isValid(string.toString(), aggressive);
}
// support some iteables too.
if (value instanceof String[] strings) {
for(String item : strings) {
if(item != null && !TextUtil.isValid(item, aggressive)) {
return false;
}
}
} else if (value instanceof Iterable iterable) {
for(Object item : iterable) {
if(item != null) {
if(!(item instanceof CharSequence string)) {
throw new UnsupportedOperationException("NoHtml validation only supports collections of strings. Got an " + item.getClass().getSimpleName());
}
if(!TextUtil.isValid(string.toString(), aggressive)) {
return false;
}
}
}
}
// all other types are considered valid
return true;
}
}