linkoperimp.java

来自「jaguey,网上的一个朋友给我的」· Java 代码 · 共 108 行

package net.javapassion.jaguey.service.imp;

import java.util.List;
import java.util.Iterator;
import net.javapassion.jaguey.core.Log;
import net.javapassion.jaguey.domain.Link;
import net.javapassion.jaguey.dao.LinkDao;
import net.javapassion.jaguey.service.LinkOper;

//版本: JagueyBBS 1.1
//功能: 论坛友情链接业务逻辑实现
//作者: 赵程佳
//时间: 2006-02-10 16:26:08

public class LinkOperImp implements LinkOper {
	private LinkDao linkDao;
	
	//保存友情链接
	public String saveLink(Link link) {
		try {
			this.linkDao.saveLink(link);
			return "success";
		} catch (Exception ex) {
			Log.error(ex.getMessage(), ex);
			return "failed";
		}
	}
	
	//删除友情链接
	public String deleteLink(String id) {
		try {
			Link link = this.linkDao.getLinkById(id);
			if (link != null) {
				this.linkDao.deleteLink(link);
				return "success";
			} else {
				return "can't find data";
			}
		} catch (Exception ex) {
			Log.error(ex.getMessage(), ex);
			return "failed";
		}
	}
	
	//获取全部友情链接
	public List getLinks() {
		try {
			return this.linkDao.getLinks();
		} catch (Exception ex) {
			Log.error(ex.getMessage(), ex);
			return null;
		}
	}
	
	//通过友情链接编号获取友情链接
	public Link getLinkById(String id) {
		try {
			return this.linkDao.getLinkById(id);
		} catch (Exception ex) {
			Log.error(ex.getMessage(), ex);
			return null;
		}
	}
	
	//创建友情链接编号
	public String makeLinkId() {
		String linkId = "";
		try {
			List list = this.linkDao.getLinks();
			if (list.size() == 0) {
				return "000001";
			} else {
				Iterator it = list.iterator();
				int i = 1;
				while (it.hasNext()) {
					if (i == list.size()) {
						Link link = (Link) it.next();
						linkId = String.valueOf(Integer.parseInt(link.getId()) + 1);
						if (Integer.parseInt(linkId) != 1000000) {
							switch (linkId.length()) {
								case 1 : linkId = "00000" + linkId; break;
								case 2 : linkId = "0000" + linkId; break;
								case 3 : linkId = "000" + linkId; break;
								case 4 : linkId = "00" + linkId; break;
								case 5 : linkId = "0" + linkId; break;
							}
						} else {
							Log.info("The linkId have already exceed to allow max quantity!");
							linkId = "000000";
						}
					} else {
						i++;
						continue;
					}
				}
				return linkId;
			}
		} catch (Exception ex) {
			Log.error(ex.getMessage(), ex);
			return "";
		}
	}
	
	public void setLinkDao(LinkDao linkDao) {
		this.linkDao = linkDao;
	}
}