/*
* Copyright (c) 2007 Mockito contributors
* This program is made available under the terms of the MIT License.
*/
package org.mockito.internal.configuration;
import org.mockito.Captor;
import org.mockito.Mock;
import org.mockito.MockitoAnnotations;
import org.mockito.configuration.AnnotationEngine;
import org.mockito.exceptions.Reporter;
import org.mockito.exceptions.base.MockitoException;
import org.mockito.internal.util.reflection.FieldSetter;
import java.lang.annotation.Annotation;
import java.lang.reflect.Field;
import java.util.HashMap;
import java.util.Map;
/**
* Initializes fields annotated with @{@link org.mockito.Mock} or @{@link org.mockito.Captor}.
*
* <p>
* The {@link #process(Class, Object)} method implementation <strong>does not</strong> process super classes!
*
* @see MockitoAnnotations
*/
@SuppressWarnings("unchecked")
public class DefaultAnnotationEngine implements AnnotationEngine {
private final Map<Class<? extends Annotation>, FieldAnnotationProcessor<?>> annotationProcessorMap = new HashMap<Class<? extends Annotation>, FieldAnnotationProcessor<?>>();
public DefaultAnnotationEngine() {
registerAnnotationProcessor(Mock.class, new MockAnnotationProcessor());
registerAnnotationProcessor(MockitoAnnotations.Mock.class, new MockitoAnnotationsMockAnnotationProcessor());
registerAnnotationProcessor(Captor.class, new CaptorAnnotationProcessor());
}
/* (non-Javadoc)
* @see org.mockito.AnnotationEngine#createMockFor(java.lang.annotation.Annotation, java.lang.reflect.Field)
*/
@SuppressWarnings("deprecation")
public Object createMockFor(Annotation annotation, Field field) {
return forAnnotation(annotation).process(annotation, field);
}
private <A extends Annotation> FieldAnnotationProcessor<A> forAnnotation(A annotation) {
if (annotationProcessorMap.containsKey(annotation.annotationType())) {
return (FieldAnnotationProcessor<A>) annotationProcessorMap.get(annotation.annotationType());
}
return new FieldAnnotationProcessor<A>() {
public Object process(A annotation, Field field) {
return null;
}
};
}
private <A extends Annotation> void registerAnnotationProcessor(Class<A> annotationClass, FieldAnnotationProcessor<A> fieldAnnotationProcessor) {
annotationProcessorMap.put(annotationClass, fieldAnnotationProcessor);
}
public void process(Class<?> clazz, Object testInstance) {
Field[] fields = clazz.getDeclaredFields();
for (Field field : fields) {
boolean alreadyAssigned = false;
for(Annotation annotation : field.getAnnotations()) {
Object mock = createMockFor(annotation, field);
if (mock != null) {
throwIfAlreadyAssigned(field, alreadyAssigned);
alreadyAssigned = true;
try {
new FieldSetter(testInstance, field).set(mock);
} catch (Exception e) {
throw new MockitoException("Problems setting field " + field.getName() + " annotated with "
+ annotation, e);
}
}
}
}
}
void throwIfAlreadyAssigned(Field field, boolean alreadyAssigned) {
if (alreadyAssigned) {
new Reporter().moreThanOneAnnotationNotAllowed(field.getName());
}
}
}