rootserviceimpl.java

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/*
 * RootServiceImpl.java
 *
 * Created on 2006年5月20日, 下午4:27
 *
 * To change this template, choose Tools | Template Manager
 * and open the template in the editor.
 */

package enova.service.impl;

import java.util.*;
import enova.dao.*;
import enova.pojo.*;
import enova.service.*;

/**
 *
 * @author vlinux
 */
public class RootServiceImpl implements RootService {
    
    private RootDao rootDao;
    
    /** Creates a new instance of RootServiceImpl */
    public RootServiceImpl(RootDao rootDao) {
        this.rootDao = rootDao;
    }
    
    /*通过ID获取管理员*/
    public Root get(Integer rootId) throws StoreException{
        try{
            return rootDao.get(rootId);
        }catch(DataAccessException dae){
            throw new StoreException();
        }
    }
    
    /*更新或者创建一个管理员，如果管理员帐号出现重复则抛出重复异常*/
    public void updateOrCreate(Root root) throws UniqueException, StoreException{
        try{
            rootDao.updateOrInsert(root);
        }catch(DataAccessException dae){
            throw new StoreException();
        }catch(RecordExistException ree){
            throw new UniqueException();
        }
    }
    
    /*通过管理员ID删除一个管理员*/
    public void delete(Integer rootId) throws NotExistException, StoreException{
        try{
            if( rootDao.get(rootId)==null )
                throw new NotExistException();
            rootDao.delete(rootId);
        }catch(DataAccessException dae){
            throw new StoreException();
        }
    }
    
    /*获取所有管理员*/
    public List getAll() throws StoreException{
        try{
            return rootDao.getAll();
        }catch(DataAccessException dae){
            throw new StoreException();
        }
    }
    
    /*通过管理员帐号获取管理员*/
    public List getByUsername(String username) throws StoreException{
        try{
            return rootDao.getByUsername(username);
        }catch(DataAccessException dae){
            throw new StoreException();
        }
    }
    
    /*管理员登录验证，抛出密码错误异常*/
    public Root loginVerify(String username,String password) throws PasswordErrorException, StoreException{
        try{
            Root root = rootDao.loginVerify(username,password);
            if( root==null )
                throw new PasswordErrorException();
            return root;
        }catch(DataAccessException dae){
            throw new StoreException();
        }
    }
    
    /*管理员修改密码，如果原来密码错误则抛出密码错误异常*/
    public void changePassword(String username,String oldPassword,String newPassword) throws PasswordErrorException, StoreException{
        try{
            Root root = loginVerify(username,oldPassword);
            root.setPassword(newPassword);
            updateOrCreate(root);
        }catch(UniqueException ue){
            //不可能发生的事情...
        }
    }
    
    
}