directory.java

来自「cwbbs 云网论坛源码」· Java 代码 · 共 123 行

package cn.js.fan.module.netdisk;

import java.sql.*;

import javax.servlet.http.*;

import cn.js.fan.db.*;
import cn.js.fan.security.*;
import cn.js.fan.util.*;
import cn.js.fan.web.*;
import org.apache.log4j.*;
import java.util.Vector;
import java.util.Iterator;



public class Directory {
    String connname = "";
    Logger logger = Logger.getLogger(Directory.class.getName());

    public Directory() {
        connname = Global.defaultDB;
        if (connname.equals(""))
            logger.info("Directory:默认数据库名不能为空");
    }

    public boolean AddChild(HttpServletRequest request) throws
            ErrMsgException {
        
        int child_count = 0, orders = 1, parent_orders = 1,
                islocked = 0;
        String root_code = "", name = "", code = "", parent_code = "";

        name = ParamUtil.get(request, "name").trim();
        if (name == null || name.equals(""))
            throw new ErrMsgException("名称不能为空！");
        code = ParamUtil.get(request, "code").trim();
        if (code.equals(""))
            throw new ErrMsgException("编码不能为空！");

        parent_code = ParamUtil.get(request, "parent_code").trim();
        if (parent_code.equals(""))
            throw new ErrMsgException("父结点不能为空！");
        String description = ParamUtil.get(request, "description");
        int type = ParamUtil.getInt(request, "type");
        String userName = ParamUtil.get(request, "userName");
        if (userName.equals(""))
            throw new ErrMsgException("用户名不能为空！");

        Leaf lf = new Leaf();
        lf = lf.getLeaf(code);
        if (lf!=null && lf.isLoaded())
            throw new ErrMsgException("已存在相同编码的节点：" + lf.getName());
        lf = new Leaf();
        lf.setName(name);
        lf.setCode(code);
        lf.setParentCode(parent_code);
        lf.setDescription(description);
        lf.setType(type);
        lf.setUserName(userName);

        Leaf leaf = getLeaf(parent_code);
        return leaf.AddChild(lf);
    }

    public void del(String delcode) throws ErrMsgException {
        Leaf lf = getLeaf(delcode);
        lf.del(lf);
    }

    public synchronized boolean update(HttpServletRequest request) throws
            ErrMsgException {
        String code = ParamUtil.get(request, "code", false);
        String name = ParamUtil.get(request, "name", false);
        String description = ParamUtil.get(request, "description");
        int type = ParamUtil.getInt(request, "type");
        if (code == null || name == null) {
            throw new ErrMsgException("code与name项必填！");
        }
        String parentCode = ParamUtil.get(request, "parentCode");

        Leaf leaf = getLeaf(code);
        leaf.setName(name);
        leaf.setDescription(description);
        leaf.setType(type);
        boolean re = false;
        if (parentCode.equals(leaf.getParentCode()))
            re = leaf.update();
        else
            re = leaf.update(parentCode);

        return re;
    }

    public synchronized boolean move(HttpServletRequest request) throws
            ErrMsgException {
        String code = ParamUtil.get(request, "code", false);
        String direction = ParamUtil.get(request, "direction", false);
        if (code == null || direction == null) {
            throw new ErrMsgException("编码与方向项必填！");
        }

        Leaf lf = new Leaf(code);
        return lf.move(direction);
    }

    public Leaf getLeaf(String code) {
        Leaf leaf = new Leaf();
        return leaf.getLeaf(code);
    }

    public Leaf getBrother(String code, String direction) throws
            ErrMsgException {
        Leaf lf = getLeaf(code);
        return lf.getBrother(direction);
    }

    public Vector getChildren(String code) throws ErrMsgException {
        Leaf leaf = getLeaf(code);
        return leaf.getChildren();
    }
}