PageUtils.java

import lombok.Getter;
import lombok.Setter;
import org.apache.commons.collections.CollectionUtils;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;

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

@Getter
@Setter
public class PageUtils<T> {

    private List<T> content;

    private long totalElements;

    private int totalPages;

    private PageableUtils pageable;

    public PageUtils() {
    }

    public PageUtils(Pageable pageable, Page<T> page) {
        this.totalElements = page == null ? 0 : page.getTotalElements();
        this.pageable = new PageableUtils(pageable);
        this.totalPages = page.getTotalPages();
        this.content = page.getContent();
    }

    public PageUtils(Pageable pageable, List<T> content) {
        this.totalElements = content == null ? 0 : content.size();
        this.pageable = new PageableUtils(pageable);
        this.totalPages = totalElements % pageable.getPageSize() != 0 ?  (int)totalElements / pageable.getPageSize() + 1: (int)totalElements / pageable.getPageSize();
        this.content = pagination(pageable, content);
    }

    public PageUtils(Pageable pageable, List<T> content, long total) {
        this.totalElements = total;
        this.pageable = new PageableUtils(pageable);
        this.totalPages = totalElements % pageable.getPageSize() != 0 ?  (int)totalElements / pageable.getPageSize() + 1: (int)totalElements / pageable.getPageSize();
        this.content = pagination(pageable, content);
    }

    public List<T> pagination(Pageable pageable, List<T> content) {
        if (CollectionUtils.isNotEmpty(content)) {
            int fromIndex = (int) pageable.getOffset();
            int pageSize = pageable.getPageSize();
            if (fromIndex > content.size()) {
                return new ArrayList<T>();
            }
            int toIndex = fromIndex + pageSize >= content.size() ? content.size() : fromIndex + pageSize;
            return content.subList(fromIndex , toIndex);
        }
        return new ArrayList<T>();
    }

}

PageableUtils.java

import lombok.Getter;
import lombok.NoArgsConstructor;
import lombok.Setter;
import org.springframework.data.domain.Pageable;
import org.springframework.data.domain.Sort;

@Getter
@Setter
@NoArgsConstructor
public class PageableUtils{



    private Long offset;

    private Integer pageNumber;

    private Integer pageSize;

    private Boolean paged;

    private Boolean unpaged;


    public PageableUtils(Pageable pageable) {
        this.offset = pageable.getOffset();
        this.pageNumber = pageable.getPageNumber();
        this.pageSize = pageable.getPageSize();
    }
}