ElementFinder.java

/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 * 
 * Copyright (c) 2011-2012 Oracle and/or its affiliates. All rights reserved.
 * 
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
 * or packager/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 * 
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at packager/legal/LICENSE.txt.
 * 
 * GPL Classpath Exception:
 * Oracle designates this particular file as subject to the "Classpath"
 * exception as provided by Oracle in the GPL Version 2 section of the License
 * file that accompanied this code.
 * 
 * Modifications:
 * If applicable, add the following below the License Header, with the fields
 * enclosed by brackets [] replaced by your own identifying information:
 * "Portions Copyright [year] [name of copyright owner]"
 * 
 * Contributor(s):
 * If you wish your version of this file to be governed by only the CDDL or
 * only the GPL Version 2, indicate your decision by adding "[Contributor]
 * elects to include this software in this distribution under the [CDDL or GPL
 * Version 2] license."  If you don't indicate a single choice of license, a
 * recipient has the option to distribute your version of this file under
 * either the CDDL, the GPL Version 2 or to extend the choice of license to
 * its licensees as provided above.  However, if you add GPL Version 2 code
 * and therefore, elected the GPL Version 2 license, then the option applies
 * only if the new code is made subject to such option by the copyright
 * holder.
 */
package org.glassfish.admingui.devtests.util;

import com.google.common.base.Function;
import com.thoughtworks.selenium.Wait;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.support.ui.WebDriverWait;
import org.openqa.selenium.NoSuchElementException;
import org.openqa.selenium.support.ui.ExpectedCondition;

/**
 *
 * @author jasonlee
 */
public class ElementFinder {
    private WebDriver driver;

    public ElementFinder(WebDriver driver) {
        this.driver = driver;
    }

    public WebElement findElement(By locatorname, int timeout) {
        WebDriverWait wait = new WebDriverWait(driver, timeout);
        return wait.until(presenceOfElementLocated(locatorname));
    }

    public WebElement findElement(By locator, int timeout, ExpectedCondition<Boolean> condition) {
        WebDriverWait w = new WebDriverWait(driver, timeout);
        w.until(condition);

        return driver.findElement(locator);
    }

    private static Function<WebDriver, WebElement> presenceOfElementLocated(final By locator) {
        return new Function<WebDriver, WebElement>() {
            @Override
            public WebElement apply(WebDriver driver) {
                WebElement element = null;
                try {
                    element = driver.findElement(locator); 
                } catch (NoSuchElementException nse) {
                    try {
                        Thread.sleep(1000);
                    } catch (InterruptedException ex) {
                        Logger.getLogger(ElementFinder.class.getName()).log(Level.SEVERE, null, ex);
                    }
                    element = driver.findElement(locator); 
                }

                return element;
            }
        };
    }
}