fluentlenium-core/src/main/java/io/fluentlenium/core/events/AnnotationFindByListener.java
package io.fluentlenium.core.events;
import io.fluentlenium.core.domain.FluentWebElement;
import io.fluentlenium.utils.ReflectionUtils;
import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.function.Function;
/**
* FindBy annotation listener
*/
class AnnotationFindByListener extends AbstractAnnotationListener implements FindByListener {
private final Method method;
private final String annotationName;
private final WebElement targetElement;
/**
* Creates a new find by annotation listener
*
* @param listenerContext the listener context
*/
AnnotationFindByListener(ListenerContext listenerContext) {
super(listenerContext.getContainer(), listenerContext.getPriority());
this.method = listenerContext.getMethod();
this.annotationName = listenerContext.getAnnotationName();
this.targetElement = listenerContext.getTargetElement();
}
/**
* Get a function that retrieves argument value based on argument class.
*
* @param by locator
* @param element element
* @param driver driver
* @return function returning argument value from argument class
*/
protected Function<Class<?>, Object> getArgsFunction(By by, FluentWebElement element, WebDriver driver) {
return input -> {
if (input.isAssignableFrom(FluentWebElement.class)) {
return element;
}
if (input.isAssignableFrom(By.class)) {
return by;
}
if (input.isAssignableFrom(WebDriver.class)) {
return driver;
}
return null;
};
}
@Override
public void on(By by, FluentWebElement element, WebDriver driver) {
if (targetElement != null && (element == null || !targetElement.equals(element.getElement()))) {
return;
}
Class<?>[] parameterTypes = method.getParameterTypes();
Object[] args = ReflectionUtils.toArgs(getArgsFunction(by, element, driver), parameterTypes);
try {
ReflectionUtils.invoke(method, getContainer(), args);
} catch (IllegalAccessException e) {
throw new EventAnnotationsException("An error has occured in " + annotationName + " " + method, e);
} catch (InvocationTargetException e) {
if (e.getTargetException() instanceof RuntimeException) {
throw (RuntimeException) e.getTargetException();
} else if (e.getTargetException() instanceof Error) {
throw (Error) e.getTargetException();
}
throw new EventAnnotationsException("An error has occured in " + annotationName + " " + method, e);
}
}
}