jhc.redsniff.webdriver.finders.ByFinder.java Source code

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Here is the source code for jhc.redsniff.webdriver.finders.ByFinder.java

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/*******************************************************************************
 * Copyright 2014 JHC Systems Limited
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *******************************************************************************/
package jhc.redsniff.webdriver.finders;

import static jhc.redsniff.internal.core.CollectionOf.collectionOf;
import static jhc.redsniff.webdriver.matchers.CssClassNameMatcher.hasCssClass;
import static jhc.redsniff.webdriver.matchers.IdMatcher.hasId;
import static jhc.redsniff.webdriver.matchers.NameMatcher.hasName;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

import jhc.redsniff.core.Locator;
import jhc.redsniff.core.MFinder;
import jhc.redsniff.internal.core.CollectionOf;
import jhc.redsniff.internal.finders.LocatorFinder;
import jhc.redsniff.webdriver.matchers.TagNameMatcher;

import org.hamcrest.Description;
import org.hamcrest.Factory;
import org.openqa.selenium.By;
import org.openqa.selenium.SearchContext;
import org.openqa.selenium.WebElement;

/**
 * TODO - this should construct a {@link LocatorFinder} appropriate for the By supplied
 * @author Nic
 *
 */
public class ByFinder extends LocatorFinder<WebElement, SearchContext> {

    public ByFinder(By by) {
        super(locatorFor(by));
    }

    public static Locator<WebElement, SearchContext> locatorFor(final By by) {
        String byAsString = by.toString();
        Pattern pattern = Pattern.compile("^By\\.(\\w+)\\: (.*?)$");
        Matcher regexMatcher = pattern.matcher(byAsString);
        if (!regexMatcher.matches())
            throw new IllegalArgumentException("didn't match By.xxx: <arg>");

        final String byType = regexMatcher.group(1);
        final String byArg = regexMatcher.group(2);

        if (byType.equals("id"))
            return hasId(byArg);
        else if (byType.equals("name"))
            return hasName(byArg);
        else if (byType.equals("className"))
            return hasCssClass(byArg);
        else if (byType.equals("tagName"))
            return TagNameMatcher.hasTagName(byArg);
        else
            return new Locator<WebElement, SearchContext>() {

                @Override
                public void describeLocatorTo(Description description) {
                    description.appendText("found " + by.toString());
                }

                @Override
                public CollectionOf<WebElement> findElementsFrom(SearchContext context) {
                    return collectionOf(by.findElements(context));
                }

                @Override
                public String nameOfAttributeUsed() {
                    return byType;
                }
            };
    }

    @Factory
    public static MFinder<WebElement, SearchContext> foundBy(By by) {
        return new ByFinder(by);
    }

}