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XLT (Xceptance LoadTest) is an extensive load and performance test tool developed and maintained by Xceptance.
/*
* Copyright (c) 2005-2022 Xceptance Software Technologies GmbH
*
* 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 com.xceptance.xlt.engine.scripting.webdriver;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.regex.Matcher;
import org.apache.commons.lang3.StringUtils;
import org.openqa.selenium.By;
import org.openqa.selenium.InvalidSelectorException;
import org.openqa.selenium.NoSuchElementException;
import org.openqa.selenium.WebElement;
import com.xceptance.xlt.engine.scripting.util.TextMatchingUtils;
/**
* HTML option finder.
*/
class OptionFinder
{
/**
* Maps strategy names to strategies.
*/
private final Map strategies = new HashMap();
/**
* Constructor.
*/
OptionFinder()
{
final OptionLookupStrategy labelStrategy = new LabelStrategy();
strategies.put("implicit", labelStrategy);
strategies.put("id", new IdStrategy());
strategies.put("index", new IndexStrategy());
strategies.put("label", labelStrategy);
strategies.put("value", new ValueStrategy());
}
/**
* Lookup an option of the given HTML select element that match the given option locator.
*
* @param select
* the HTML select element
* @param optionLocator
* the option locator
* @return first found option of the given select element that match the given option locator
*/
WebElement findOption(final WebElement select, final String optionLocator)
{
return findOptions(select, optionLocator).get(0);
}
/**
* Lookup all options of the given HTML select element that match the given option locator.
*
* @param select
* the HTML select element
* @param optionLocator
* the option locator
* @return list of all options of the given select element that match the given option locator
*/
List findOptions(final WebElement select, final String optionLocator)
{
final String strategyName;
final String value;
final Matcher m = WebDriverFinder.STRATEGY_PATTERN.matcher(optionLocator);
if (m.matches())
{
strategyName = m.group(1);
value = m.group(2);
}
else
{
strategyName = "implicit";
value = optionLocator;
}
final OptionLookupStrategy strategy = strategies.get(strategyName);
if (strategy == null)
{
throw new InvalidSelectorException("Unsupported option locator strategy: " + strategyName);
}
final List options = strategy.find(select, value);
if (options.size() == 0)
{
throw new NoSuchElementException("No option found for option locator: " + optionLocator);
}
return options;
}
/**
* Finds an option by id attribute.
*/
private static final class IdStrategy extends OptionLookupStrategy
{
@Override
protected List find(final WebElement select, final String id)
{
final ArrayList options = new ArrayList();
for (final WebElement o : getOptionElements(select))
{
if (id.equals(o.getAttribute("id")))
{
options.add(o);
}
}
return options;
}
}
/**
* Finds an option by index.
*/
private static final class IndexStrategy extends OptionLookupStrategy
{
@Override
protected List find(final WebElement select, final String index)
{
final ArrayList options = new ArrayList();
try
{
final int idx = Integer.parseInt(index);
final List optionElements = getOptionElements(select);
options.add(optionElements.get(idx));
}
catch (final Exception e)
{
// ignore
}
return options;
}
}
/**
* Finds an option by label (element text).
*/
private static final class LabelStrategy extends OptionLookupStrategy
{
@Override
protected List find(final WebElement select, final String textPattern)
{
final ArrayList options = new ArrayList();
for (final WebElement o : getOptionElements(select))
{
if (TextMatchingUtils.isAMatch(o.getText(), textPattern, true, true))
{
options.add(o);
}
}
return options;
}
}
/**
* Finds an option by value attribute.
*/
private static final class ValueStrategy extends OptionLookupStrategy
{
@Override
protected List find(final WebElement select, final String valuePattern)
{
final ArrayList options = new ArrayList();
for (final WebElement o : getOptionElements(select))
{
final String value = StringUtils.defaultString(o.getAttribute("value"));
if (TextMatchingUtils.isAMatch(value, valuePattern, true, false))
{
options.add(o);
}
}
return options;
}
}
/**
* Base class of HTML option lookup strategies.
*/
private static abstract class OptionLookupStrategy
{
/**
* Lookup all options of the given HTML select element that match the given option locator.
*
* @param select
* the HTML select element
* @param criterion
* the option locator
* @return list of all options of the given select element that match the given option locator
*/
protected abstract List find(final WebElement select, final String criterion);
/**
* Lookup all options of the given HTML select element that match the given option locator.
*
* @param select
* the HTML select element
* @param optionLocator
* the option locator
* @return list of all options of the given select element that match the given option locator
*/
protected List getOptionElements(final WebElement select)
{
return select.findElements(By.tagName("option"));
}
}
}