/*
* Copyright 2016 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* 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 org.powermock.api.extension.listener;
import org.powermock.reflect.Whitebox;
import java.lang.annotation.Annotation;
import java.lang.reflect.Field;
import java.util.ArrayList;
import java.util.List;
import java.util.Set;
class AnnotationMockScanner {
private final Class<? extends Annotation> annotation;
public AnnotationMockScanner(Class<? extends Annotation> annotation) {
this.annotation = annotation;
}
public List<MockMetadata> scan(Object instance) throws Exception {
final List<MockMetadata> mocksMetadata = new ArrayList<MockMetadata>();
final Set<Field> fields = getFields(instance);
for (Field field : fields) {
if (field.get(instance) != null) {
continue;
}
mocksMetadata.add(new AnnotationMockMetadata(annotation, field));
}
return mocksMetadata;
}
@SuppressWarnings("unchecked")
private Set<Field> getFields(Object instance) {
final Set<Field> fields;
if (annotation != null) {
fields = Whitebox.getFieldsAnnotatedWith(instance, annotation);
}else{
fields = Whitebox.getAllInstanceFields(instance);
}
return fields;
}
}