org.startupframework.data.entity.ExampleFilter Maven / Gradle / Ivy
/*
* Copyright 2019-2020 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
*
* https://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.startupframework.data.entity;
import java.beans.PropertyDescriptor;
import java.util.ArrayList;
import java.util.List;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.BeanWrapper;
import org.springframework.beans.BeanWrapperImpl;
import org.springframework.data.domain.Example;
import org.springframework.data.domain.ExampleMatcher;
import org.springframework.data.domain.ExampleMatcher.GenericPropertyMatcher;
/**
*
* @author Arq. Jesús Israel Anaya Salazar
*/
public final class ExampleFilter {
private ExampleFilter() {
throw new IllegalStateException("Utility class");
}
private static List getNestedProperties(String masterProperty, List validProperties) {
List nestedProperties = new ArrayList<>();
for (String validProperty : validProperties) {
if (validProperty.startsWith(masterProperty)) {
String nestedProperty = validProperty.replaceFirst(masterProperty + ".", "");
nestedProperties.add(nestedProperty);
}
}
return nestedProperties;
}
private static void initPropertyToNull(BeanWrapper bean, PropertyDescriptor property,
List validProperties) {
String propertyName = property.getName();
Class propertyType = property.getPropertyType();
if (!validProperties.contains(propertyName) && bean.isWritableProperty(propertyName)) {
if (BeanUtils.isSimpleProperty(propertyType)) {
bean.setPropertyValue(property.getName(), null);
} else {
if (Entity.class.isAssignableFrom(propertyType)) {
Entity nestedProperty = (Entity) bean.getPropertyValue(propertyName);
if (nestedProperty != null) {
initPropertiesToNull(nestedProperty, getNestedProperties(propertyName, validProperties));
}
}
}
}
}
private static void initPropertiesToNull(Entity item, List validProperties) {
BeanWrapper bean = new BeanWrapperImpl(item);
PropertyDescriptor[] properties = bean.getPropertyDescriptors();
for (PropertyDescriptor property : properties) {
initPropertyToNull(bean, property, validProperties);
}
}
private static GenericPropertyMatcher createFilterMatcher(String matchMode) {
return ExampleMatcher.GenericPropertyMatchers.contains();
}
public static Example createExample(RequestInfo requestInfo) {
List validProperties = new ArrayList<>();
ExampleMatcher matcher = ExampleMatcher.matching();
matcher = matcher.withIgnoreCase();
matcher = matcher.withIgnorePaths("id");
for (FilterRequest filterRequest : requestInfo.getFilters()) {
GenericPropertyMatcher filterMatcher = createFilterMatcher(filterRequest.getMatchMode());
matcher = matcher.withMatcher(filterRequest.getProperty(), filterMatcher);
validProperties.add(filterRequest.getProperty());
}
initPropertiesToNull(requestInfo.getFilterValues(), validProperties);
return Example.of(requestInfo.getFilterValues(), matcher);
}
}