package cn.com.countrygarden.bi.main.util;

import org.apache.commons.lang.StringUtils;

import java.util.LinkedHashMap;
import java.util.Map;

/**
 * 查询参数
 *
 */
public class Query extends LinkedHashMap<String, Object> {
    private static final long serialVersionUID = 1L;
    //当前页码
    private int page;
    //每页条数
    private int limit;

    public Query(Map<String, Object> params) {
        this.putAll(params);
        //分页参数
        if (params.get("limit") != null) {
            this.limit = Integer.parseInt(params.get("limit").toString());
            this.put("limit", limit);
        }
        if (params.get("page") != null) {
            this.page = Integer.parseInt(params.get("page").toString());
            this.put("offset", (page - 1) * limit);
            this.put("page", page);
        }

        //防止SQL注入（因为sidx、order是通过拼接SQL实现排序的，会有SQL注入风险）
        String sidx = (String) (params.get("sidx") != null ? params.get("sidx") : "");
        String order = (String) (params.get("order") != null ? params.get("order") : "");
        if (StringUtils.isNotBlank(sidx)) {
            this.put("sidx", SQLFilter.sqlInject(sidx));
        }
        if (StringUtils.isNotBlank(order)) {
            this.put("order", SQLFilter.sqlInject(order));
        }

    }


    public int getPage() {
        return page;
    }

    public void setPage(int page) {
        this.page = page;
    }

    public int getLimit() {
        return limit;
    }

    public void setLimit(int limit) {
        this.limit = limit;
    }
}