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AJAXJS aims to full-stack, not only the server-side framework, but also integrates the front-end library. It's written in HTML5 + Java, a successor to the JVM platform, efficient, secure, stable, cross-platform and many other advantages, but it abandoned the traditional enterprise architecture brought about by the large and bloated, emphasizing the lightweight, and fast, very suitable for the Internet fast application.
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/**
 * 版权所有 2017 Sp42 [email protected] 根据 2.0 版本 Apache 许可证("许可证")授权；
 * 根据本许可证，用户可以不使用此文件。 用户可从下列网址获得许可证副本：
 * http://www.apache.org/licenses/LICENSE-2.0
 * 除非因适用法律需要或书面同意，根据许可证分发的软件是基于"按原样"基础提供，
 * 无任何明示的或暗示的保证或条件。详见根据许可证许可下，特定语言的管辖权限和限制。
 */
package com.ajaxjs.framework;

import com.ajaxjs.sql.SnowflakeId;
import com.ajaxjs.sql.orm.IBaseDao;
import com.ajaxjs.sql.orm.IBaseService;
import com.ajaxjs.sql.orm.PageResult;
import org.springframework.util.StringUtils;

import java.util.Date;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import java.util.function.Function;

/**
 * 基础业务类
 * 
 * @author sp42 [email protected]
 *
 * @param  实体类型，可以为 Map 或 Java Bean
 */
public abstract class BaseService extends QueryTools implements IBaseService {
	@Override
	public T findById(Long id) {
		return dao.findById(id);
	}

	/**
	 * 按实体唯一 id查找单个实体
	 * 
	 * @param uid 实体唯一 id
	 * @return 实体
	 */
	public T findByUid(long uid) {
		return dao.find(byUid(uid));
	}

	@Override
	public Long create(T bean) {
		initCreate(bean);
		return dao.create(bean);
	}

	public static void initCreate(Object bean) {
		Objects.requireNonNull(bean, "Bean 实体不能为空");

		if (bean instanceof BaseModel) {
			BaseModel model = (BaseModel) bean;
			if (model.getUid() == null)
				model.setUid(SnowflakeId.get());

			Date now = new Date();

			if (model.getCreateDate() == null)
				model.setCreateDate(now);
			if (model.getUpdateDate() == null)
				model.setUpdateDate(now);
		} else if (bean instanceof Map) {
			@SuppressWarnings("unchecked")
			Map map = (Map) bean;
			if (map.get("uid") == null)
				map.put("uid", SnowflakeId.get());

			Date now = new Date();
			Object createDate = map.get("createDate");

			if (createDate == null || (createDate != null && !StringUtils.hasText(createDate.toString())))
				map.put("createDate", now);
			
			if (map.get("updateDate") == null)
				map.put("updateDate", now);
		}
	}

	@Override
	public int update(T bean) {
		initUpdate(bean);
		return dao.update(bean);
	}

	/**
	 * 通用的更新操作
	 * 
	 * @param bean
	 */
	public static void initUpdate(Object bean) {
		Date now = new Date();
		if (bean instanceof BaseModel) {
			BaseModel model = (BaseModel) bean;

			if (model.getUpdateDate() == null)
				model.setUpdateDate(now);
		} else if (bean instanceof Map) {
			@SuppressWarnings("unchecked")
			Map map = (Map) bean;
			if (map.get("updateDate") == null)
				map.put("updateDate", now);
		}
	}

	@Override
	public boolean delete(T bean) {
		return dao.delete(bean);
	}

	@Override
	public List findList() {
		return dao.findList(null);
	}

	@Override
	public List findList(Function sqlHandler) {
		return dao.findList(sqlHandler);
	}

	@Override
	public PageResult findPagedList(int start, int limit) {
		return dao.findPagedList(start, limit, null);
	}

	@Override
	public PageResult findPagedList(int start, int limit, Function sqlHandler) {
		return dao.findPagedList(start, limit, sqlHandler);
	}

	/**
	 * 有简单分类功能
	 * 
	 * @param catalogId
	 * @param start
	 * @param limit
	 * @param status
	 * @param isSimpleCatalog 是否递归分类查询
	 * @return
	 */
	public PageResult findPagedList(int catalogId, int start, int limit, int status, boolean isSimpleCatalog) {
		Function fn = setStatus(status).andThen(BaseService::searchQuery).andThen(byAny());

//		if (catalogId != 0)
//			fn = fn.andThen(isSimpleCatalog ? by("catalogId", catalogId) : TreeLikeService.setCatalog(catalogId));

		return dao.findPagedList(start, limit, fn);
	}

	private IBaseDao dao;

	private String uiName;

	private String tableName;

	private String shortName;

	@Override
	public IBaseDao getDao() {
		return dao;
	}

	public void setDao(IBaseDao dao) {
		this.dao = dao;
	}

	@Override
	public String getUiName() {
		return uiName;
	}

	public void setUiName(String uiName) {
		this.uiName = uiName;
	}

	@Override
	public String getTableName() {
		return tableName;
	}

	public void setTableName(String tableName) {
		this.tableName = tableName;
	}

	@Override
	public String getShortName() {
		return shortName;
	}

	public void setShortName(String shortName) {
		this.shortName = shortName;
	}

	public static final int defaultPageSize = 6;

	/**
	 * 谨慎使用！这查询权力很大，可指定任意的字段
	 * 
	 * @return SQL 处理器
	 */
	public static Function byAny() {
		return byAny(BaseController.getRequest());
	}

	/**
	 * 对 name、content 字段搜索
	 * 
	 * @param sql 输入的SQL
	 * @return 修改后的 SQL
	 */
	public static String searchQuery(String sql) {
		return searchQuery(new String[] { "name", "content" }, BaseController.getRequest()).apply(sql);
	}

	/**
	 * 对 name 字段搜索
	 * 
	 * @param sql 输入的SQL
	 * @return 修改后的 SQL
	 */
	public static String searchQuery_NameOnly(String sql) {
		return searchQuery(new String[] { "name" }, BaseController.getRequest()).apply(sql);
	}

	/**
	 * 时间范围的查询
	 * 
	 * @param sql 输入的SQL
	 * @return 修改后的 SQL
	 */
	public static String betweenCreateDate(String sql) {
		return betweenCreateDate("createDate", BaseController.getRequest()).apply(sql);
	}
	/**
	 * 时间范围的查询
	 * 
	 * @param sql 输入的SQL
	 * @return 修改后的 SQL
	 */
	public static String betweenCreateDateWithE(String sql) {
		return betweenCreateDate("e.createDate", BaseController.getRequest()).apply(sql);
	}
}