io.appium.java_client.pagefactory.bys.builder.AppiumByBuilder Maven / Gradle / Ivy
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Java client for Appium Mobile Webdriver
/*
* 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.bys.builder;
import org.openqa.selenium.By;
import org.openqa.selenium.support.pagefactory.AbstractAnnotations;
import org.openqa.selenium.support.pagefactory.ByAll;
import javax.annotation.Nullable;
import java.lang.annotation.Annotation;
import java.lang.reflect.AnnotatedElement;
import java.lang.reflect.Constructor;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.lang.reflect.Proxy;
import java.util.ArrayList;
import java.util.List;
import java.util.stream.Collectors;
import java.util.stream.Stream;
import static io.appium.java_client.remote.AutomationName.IOS_XCUI_TEST;
import static io.appium.java_client.remote.MobilePlatform.ANDROID;
import static io.appium.java_client.remote.MobilePlatform.IOS;
import static io.appium.java_client.remote.MobilePlatform.TVOS;
import static io.appium.java_client.remote.MobilePlatform.WINDOWS;
/**
* It is the basic handler of Appium-specific page object annotations
* About the Page Object design pattern please read these documents:
* - https://code.google.com/p/selenium/wiki/PageObjects
* - https://code.google.com/p/selenium/wiki/PageFactory
*/
public abstract class AppiumByBuilder extends AbstractAnnotations {
protected static final Class[] DEFAULT_ANNOTATION_METHOD_ARGUMENTS = new Class[]{};
private static final List METHODS_TO_BE_EXCLUDED_WHEN_ANNOTATION_IS_READ = new ArrayList() {
private static final long serialVersionUID = 1L;
{
Stream.of(Object.class, Annotation.class, Proxy.class)
.map(Class::getDeclaredMethods)
.map(AppiumByBuilder::getMethodNames)
.flatMap(List::stream)
.forEach(this::add);
}
};
protected final AnnotatedElementContainer annotatedElementContainer;
protected final String platform;
protected final String automation;
protected AppiumByBuilder(String platform, String automation) {
this.annotatedElementContainer = new AnnotatedElementContainer();
this.platform = String.valueOf(platform);
this.automation = String.valueOf(automation);
}
private static List getMethodNames(Method[] methods) {
return Stream.of(methods).map(Method::getName).collect(Collectors.toList());
}
private static Method[] prepareAnnotationMethods(Class annotation) {
List targetAnnotationMethodNamesList = getMethodNames(annotation.getDeclaredMethods());
targetAnnotationMethodNamesList.removeAll(METHODS_TO_BE_EXCLUDED_WHEN_ANNOTATION_IS_READ);
return targetAnnotationMethodNamesList.stream()
.map((methodName) -> {
try {
return annotation.getMethod(methodName, DEFAULT_ANNOTATION_METHOD_ARGUMENTS);
} catch (NoSuchMethodException | SecurityException e) {
throw new RuntimeException(e);
}
}).toArray(Method[]::new);
}
private static String getFilledValue(Annotation mobileBy) {
return Stream.of(prepareAnnotationMethods(mobileBy.getClass()))
.filter((method) -> String.class == method.getReturnType())
.filter((method) -> {
try {
Object strategyParameter = method.invoke(mobileBy);
return strategyParameter != null && !String.valueOf(strategyParameter).isEmpty();
} catch (IllegalAccessException | IllegalArgumentException
| InvocationTargetException e) {
throw new RuntimeException(e);
}
})
.findFirst()
.map(Method::getName)
.orElseThrow(() -> new IllegalArgumentException(
String.format("@%s: one of %s should be filled",
mobileBy.getClass().getSimpleName(), Strategies.strategiesNames())
));
}
private static By getMobileBy(Annotation annotation, String valueName) {
return Stream.of(Strategies.values())
.filter((strategy) -> strategy.returnValueName().equals(valueName))
.findFirst()
.map((strategy) -> strategy.getBy(annotation))
.orElseThrow(() -> new IllegalArgumentException(
String.format("@%s: There is an unknown strategy %s",
annotation.getClass().getSimpleName(), valueName)
));
}
private static T getComplexMobileBy(Annotation[] annotations, Class requiredByClass) {
By[] byArray = Stream.of(annotations)
.map((annotation) -> getMobileBy(annotation, getFilledValue(annotation)))
.toArray(By[]::new);
try {
Constructor c = requiredByClass.getConstructor(By[].class);
Object[] values = new Object[]{byArray};
return c.newInstance(values);
} catch (InvocationTargetException | NoSuchMethodException | InstantiationException
| IllegalAccessException e) {
throw new RuntimeException(e);
}
}
@Nullable
protected static By createBy(Annotation[] annotations, HowToUseSelectors howToUseLocators) {
if (annotations == null || annotations.length == 0) {
return null;
}
switch (howToUseLocators) {
case USE_ONE: {
return getMobileBy(annotations[0], getFilledValue(annotations[0]));
}
case BUILD_CHAINED: {
return getComplexMobileBy(annotations, ByChained.class);
}
case USE_ANY: {
return getComplexMobileBy(annotations, ByAll.class);
}
default: {
return null;
}
}
}
/**
* This method should be used for the setting up of
* AnnotatedElement instances before the building of
* By-locator strategies.
*
* @param annotated is an instance of class which type extends
* {@link java.lang.reflect.AnnotatedElement}
*/
public void setAnnotated(AnnotatedElement annotated) {
this.annotatedElementContainer.setAnnotated(annotated);
}
protected boolean isAndroid() {
return ANDROID.equalsIgnoreCase(platform);
}
protected boolean isIOS() {
return IOS.equalsIgnoreCase(platform);
}
protected boolean isTvOS() {
return TVOS.equalsIgnoreCase(platform);
}
protected boolean isIOSXcuit() {
return isIOS() && IOS_XCUI_TEST.equalsIgnoreCase(automation);
}
protected boolean isWindows() {
return WINDOWS.equalsIgnoreCase(platform);
}
/**
* Defines how to transform given object (field, class, etc)
* into {@link org.openqa.selenium.By} class used by webdriver to locate elements.
*/
public abstract By buildBy();
/**
* Defines whether or not given element
* should be returned from cache on further calls.
*/
public abstract boolean isLookupCached();
protected abstract By buildDefaultBy();
protected abstract By buildMobileNativeBy();
protected abstract void assertValidAnnotations();
}