/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.apache.isis.core.unittestsupport.utils;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import javax.jdo.annotations.PersistenceCapable;
import javax.jdo.annotations.Persistent;
import com.google.common.base.Predicate;
import com.google.common.base.Strings;
public class ReflectUtils {
public static <T> Predicate<Field> withTypeAssignableFrom(final Class<T> type) {
return new Predicate<Field>() {
public boolean apply(Field input) {
return input != null && input.getType().isAssignableFrom(type);
}
};
}
public static <T> Predicate<Method> withReturnTypeAssignableFrom(final Class<T> type) {
return new Predicate<Method>() {
public boolean apply(Method input) {
return input != null && input.getReturnType().isAssignableFrom(type);
}
};
}
public static Predicate<Method> withParametersAssignableFrom(final Class<?>... types) {
return new Predicate<Method>() {
public boolean apply(Method input) {
if (input != null) {
Class<?>[] parameterTypes = input.getParameterTypes();
if (parameterTypes.length == types.length) {
for (int i = 0; i < parameterTypes.length; i++) {
if (!parameterTypes[i].isAssignableFrom(types[i])) {
return false;
}
}
return true;
}
}
return false;
}
};
}
public static final Predicate<? super Field> persistentMappedBy = new Predicate<Field>() {
public boolean apply(Field f) {
final Persistent annotation = f.getAnnotation(Persistent.class);
return annotation!=null && !Strings.isNullOrEmpty(annotation.mappedBy());
}
};
public static Predicate<? super Method> withEntityParameter() {
return new Predicate<Method>() {
public boolean apply(Method m) {
final Class<?> parameterType = m.getParameterTypes()[0];
return parameterType.isAnnotationPresent(PersistenceCapable.class);
}
};
}
}