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Java client for Appium Mobile Webdriver
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/*
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * See the NOTICE file distributed with this work for additional
 * information regarding copyright ownership.
 * 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 io.appium.java_client.pagefactory;

import static io.appium.java_client.pagefactory.utils.WebDriverUnpackUtility.getCurrentContentType;

import io.appium.java_client.pagefactory.bys.ContentType;
import io.appium.java_client.pagefactory.interceptors.InterceptorOfAListOfElements;
import io.appium.java_client.pagefactory.locator.CacheableLocator;
import io.appium.java_client.pagefactory.utils.ProxyFactory;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;

import java.lang.reflect.Constructor;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;

class WidgetListInterceptor extends InterceptorOfAListOfElements {

    private final Map> instantiationMap;
    private final List cachedWidgets = new ArrayList<>();
    private final Class declaredType;
    private final TimeOutDuration duration;
    private final WebDriver driver;
    private List cachedElements;

    WidgetListInterceptor(CacheableLocator locator, WebDriver driver,
        Map> instantiationMap,
        Class declaredType, TimeOutDuration duration) {
        super(locator);
        this.instantiationMap = instantiationMap;
        this.declaredType = declaredType;
        this.duration = duration;
        this.driver = driver;
    }


    @Override protected Object getObject(List elements, Method method, Object[] args)
        throws Throwable {
        if (cachedElements == null || (locator != null && !((CacheableLocator) locator)
            .isLookUpCached())) {
            cachedElements = elements;
            cachedWidgets.clear();

            for (WebElement element : cachedElements) {
                ContentType type = getCurrentContentType(element);
                Class[] params =
                    new Class[] {instantiationMap.get(type).getParameterTypes()[0]};
                cachedWidgets.add(ProxyFactory
                    .getEnhancedProxy(declaredType, params, new Object[] {element},
                        new WidgetInterceptor(null, driver, element, instantiationMap, duration)));
            }
        }
        try {
            return method.invoke(cachedWidgets, args);
        } catch (Throwable t) {
            throw ThrowableUtil.extractReadableException(t);
        }
    }
}