/**
 * JBoss, Home of Professional Open Source
 * Copyright 2012, Red Hat, Inc. and individual contributors
 * by the @authors tag. See the copyright.txt in the distribution for a
 * full listing of individual contributors.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */
package org.jboss.arquillian.graphene.condition.element;

import java.util.logging.Level;

import org.openqa.selenium.StaleElementReferenceException;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;

/**
 * @author <a href="mailto:jpapouse@redhat.com">Jan Papousek</a>
 */
public abstract class AbstractElementBooleanCondition extends AbstractElementCondition<Boolean> {

    private final boolean negation;

    public AbstractElementBooleanCondition(WebElement element) {
        this(element, false);
    }

    public AbstractElementBooleanCondition(WebElement element, boolean negation) {
        super(element);
        this.negation = negation;
    }

    @Override
    public Boolean apply(WebDriver driver) {
        try {
            if (negation) {
                return !check(driver);
            } else {
                return check(driver);
            }
        } catch(StaleElementReferenceException ignored) {
            LOGGER.log(Level.WARNING, "The element is stale.", ignored);
            return null;
        }
    }

    protected boolean getNegation() {
        return negation;
    }

}
