io.datarouter.binarydto.internal.BinaryDtoReflectionTool Maven / Gradle / Ivy
/*
* Copyright © 2009 HotPads ([email protected])
*
* 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 io.datarouter.binarydto.internal;
import java.lang.reflect.Constructor;
import java.lang.reflect.Field;
import java.lang.reflect.Modifier;
import java.util.Objects;
import io.datarouter.scanner.Scanner;
public class BinaryDtoReflectionTool{
public static T newInstanceUnchecked(Class cls){
try{
Constructor constructor = cls.getDeclaredConstructor();
constructor.setAccessible(true);
return constructor.newInstance();
}catch(Exception e){
throw new IllegalArgumentException(e);
}
}
public static Scanner scanFieldsIncludingSuperclasses(@SuppressWarnings("rawtypes") Class type){
return Scanner.iterate(type, cls -> cls.getSuperclass())
.advanceUntil(Objects::isNull)
.map(Class::getDeclaredFields)
.concat(Scanner::of)
.exclude(field -> Modifier.isStatic(field.getModifiers()));
}
public static Field getField(Class cls, String fieldName){
return scanFieldsIncludingSuperclasses(cls)
.include(field -> field.getName().equals(fieldName))
.findFirst()
.orElse(null);
}
public static Object getUnchecked(Field field, Object object){
try{
return field.get(object);
}catch(IllegalArgumentException | IllegalAccessException e){
throw new RuntimeException(e);
}
}
public static void setUnchecked(Field field, Object object, Object value){
try{
field.set(object, value);
}catch(IllegalArgumentException | IllegalAccessException e){
throw new RuntimeException(e);
}
}
}