com.github.vineey.rql.querydsl.spring.SpringUtil.java Source code

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Here is the source code for com.github.vineey.rql.querydsl.spring.SpringUtil.java

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/*
* MIT License
* 
* Copyright (c) 2016 John Michael Vincent S. Rustia
* 
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
* 
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
* 
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
* 
*/
package com.github.vineey.rql.querydsl.spring;

import com.querydsl.core.QueryModifiers;
import com.querydsl.core.types.OrderSpecifier;
import org.springframework.data.domain.PageRequest;
import org.springframework.data.domain.Pageable;
import org.springframework.data.domain.Sort;

import java.util.ArrayList;
import java.util.List;

/**
 * @author vrustia - 4/24/16.
 */
public final class SpringUtil {
    public static Pageable toPageable(List<OrderSpecifier> orderSpecifiers, QueryModifiers page) {
        List<Sort.Order> orders = new ArrayList<>();

        for (OrderSpecifier orderSpecifier : orderSpecifiers) {
            String expressionPath = orderSpecifier.getTarget().toString();
            String[] paths = expressionPath.split("\\.");
            String property = paths[paths.length - 1];
            orders.add(new Sort.Order(Sort.Direction.valueOf(orderSpecifier.getOrder().toString()), property));
        }

        Sort sort = new Sort(orders);
        return new PageRequest(page.getOffset().intValue(), page.getLimit().intValue(), sort);
    }
}