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package org.apache.syncope.core.persistence.validation.attrvalue;

import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.apache.syncope.core.persistence.beans.AbstractSchema;
import org.apache.syncope.core.persistence.beans.AbstractAttrValue;

public class EmailAddressValidator extends AbstractValidator {

    private static final Pattern EMAIL_PATTERN = Pattern.compile(
            "^[\\w\\-]([\\.\\w])+[\\w]+@([\\w\\-]+\\.)+[A-Z]{2,4}$",
            Pattern.CASE_INSENSITIVE);

    public EmailAddressValidator(final AbstractSchema schema) {
        super(schema);
    }

    @Override
    protected void doValidate(final AbstractAttrValue attributeValue)
            throws InvalidAttrValueException {

        Matcher matcher = EMAIL_PATTERN.matcher(
            (CharSequence) attributeValue.getValue());

        if (!matcher.matches()) {
            throw new InvalidAttrValueException(attributeValue);
        }
    }
}