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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 org.openqa.selenium.support.pagefactory.ByChained;
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.util.ArrayList;
import java.util.List;
import static io.appium.java_client.remote.AutomationName.SELENDROID;
import static io.appium.java_client.remote.MobilePlatform.ANDROID;
import static io.appium.java_client.remote.MobilePlatform.IOS;
/**
* 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 {
final static Class[] DEFAULT_ANNOTATION_METHOD_ARGUMENTS = new Class[] {};
private final static List METHODS_TO_BE_EXCLUDED_WHEN_ANNOTATION_IS_READ =
new ArrayList() {
private static final long serialVersionUID = 1L;
{
List objectClassMethodNames =
getMethodNames(Object.class.getDeclaredMethods());
addAll(objectClassMethodNames);
List annotationClassMethodNames =
getMethodNames(Annotation.class.getDeclaredMethods());
annotationClassMethodNames.removeAll(objectClassMethodNames);
addAll(annotationClassMethodNames);
}
};
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).toUpperCase().trim();
this.automation = String.valueOf(automation).toUpperCase().trim();
}
private static List getMethodNames(Method[] methods) {
List names = new ArrayList<>();
for (Method m : methods) {
names.add(m.getName());
}
return names;
}
private static Method[] prepareAnnotationMethods(Class annotation) {
List targeAnnotationMethodNamesList =
getMethodNames(annotation.getDeclaredMethods());
targeAnnotationMethodNamesList.removeAll(METHODS_TO_BE_EXCLUDED_WHEN_ANNOTATION_IS_READ);
Method[] result = new Method[targeAnnotationMethodNamesList.size()];
for (String methodName : targeAnnotationMethodNamesList) {
try {
result[targeAnnotationMethodNamesList.indexOf(methodName)] =
annotation.getMethod(methodName, DEFAULT_ANNOTATION_METHOD_ARGUMENTS);
} catch (NoSuchMethodException | SecurityException e) {
throw new RuntimeException(e);
}
}
return result;
}
private static String getFilledValue(Annotation mobileBy) {
Method[] values = prepareAnnotationMethods(mobileBy.getClass());
for (Method value : values) {
try {
String strategyParameter = value.invoke(mobileBy, new Object[] {}).toString();
if (!"".equals(strategyParameter)) {
return value.getName();
}
} catch (IllegalAccessException | IllegalArgumentException | InvocationTargetException e) {
throw new RuntimeException(e);
}
}
throw new IllegalArgumentException(
"@" + mobileBy.getClass().getSimpleName() + ": one of " + Strategies.strategiesNames()
.toString() + " should be filled");
}
private static By getMobileBy(Annotation annotation, String valueName) {
Strategies strategies[] = Strategies.values();
for (Strategies strategy : strategies) {
if (strategy.returnValueName().equals(valueName)) {
return strategy.getBy(annotation);
}
}
throw new IllegalArgumentException(
"@" + annotation.getClass().getSimpleName() + ": There is an unknown strategy "
+ valueName);
}
@SuppressWarnings("unchecked")
private static T getComplexMobileBy(Annotation[] annotations,
Class requiredByClass) {
By[] byArray = new By[annotations.length];
for (int i = 0; i < annotations.length; i++) {
byArray[i] = getMobileBy(annotations[i], getFilledValue(annotations[i]));
}
try {
Constructor c = requiredByClass.getConstructor(By[].class);
Object[] values = new Object[] {byArray};
return (T) c.newInstance(values);
} catch (Exception e) {
throw new RuntimeException(e);
}
}
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.toUpperCase().equals(platform);
}
protected boolean isSelendroidAutomation() {
return isAndroid() && SELENDROID.toUpperCase().equals(automation);
}
protected boolean isIOS() {
return IOS.toUpperCase().equals(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();
}