directory.java

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package cn.js.fan.module.cms;

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;

/**
 *
 * <p>Title: </p>
 *
 * <p>Description: </p>
 *
 * <p>Copyright: Copyright (c) 2004</p>
 *
 * <p>Company: </p>
 * ╋ 女性话题      一级目录
 *   ├『花样年华』  二级目录
 *   ├『花样年华』
 *   ╋ 女性话题     二级目录
 *     ├『花样年华』 三级目录
 * @author not attributable
 * @version 1.0
 */

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

    public Directory() {
        connname = Global.defaultDB;
        if (connname.equals(""))
            logger.info("Directory:conname is empty.");
    }

    public boolean AddRootChild(HttpServletRequest request) throws
            ErrMsgException {
        int child_count = 0, orders = 1, parent_orders = 1,
                islocked = 0;
        String root_code = "", name = "", code = "", parent_code = "-1";
        int parent_layer = 1;
        boolean isParentRoot = false; //父目录是不是一级目录

        name = ParamUtil.get(request, "name", false);
        if (name == null)
            throw new ErrMsgException(SkinUtil.LoadString(request, "res.cms.Directory", "err_name_empty"));
        code = ParamUtil.get(request, "code", false);
        if (code == null)
            throw new ErrMsgException(SkinUtil.LoadString(request, "res.cms.Directory", "err_code_empty"));
        String description = ParamUtil.get(request, "description");

        root_code = code;

        String insertsql = "insert into directory (code,name,parent_code,description,orders,root_code,child_count,layer) values (";
        insertsql += StrUtil.sqlstr(code) + "," + StrUtil.sqlstr(name) +
                "," + StrUtil.sqlstr(parent_code) +
                "," + StrUtil.sqlstr(description) + "," +
                orders + "," + StrUtil.sqlstr(root_code) + "," +
                child_count + ",1)";

        // logger.info(insertsql);
        if (!SecurityUtil.isValidSql(insertsql))
            throw new ErrMsgException(SkinUtil.LoadString(request, SkinUtil.ERR_SQL));
        int r = 0;
        RMConn conn = new RMConn(connname);
        try {
            r = conn.executeUpdate(insertsql);
        } catch (SQLException e) {
            logger.error(e.getMessage());
            throw new ErrMsgException(SkinUtil.LoadString(request, SkinUtil.ERR_DB)); // "请检查编码" + code + "是否重复！");
        }
        return r == 1 ? true : false;
    }

    public boolean AddChild(HttpServletRequest request) throws
            ErrMsgException {
        // 取出被回复的贴子的有关信息
        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(SkinUtil.LoadString(request, "res.cms.Directory", "err_name_empty"));
        code = ParamUtil.get(request, "code").trim();
        if (code.equals(""))
            throw new ErrMsgException(SkinUtil.LoadString(request, "res.cms.Directory", "err_code_empty"));
        if (!StrUtil.isSimpleCode(code))
            throw new ErrMsgException(SkinUtil.LoadString(request, "err_simple_code")); // 编码请使用字母、数字或者符号 _ -！

        parent_code = ParamUtil.get(request, "parent_code").trim();
        if (parent_code.equals(""))
            throw new ErrMsgException(SkinUtil.LoadString(request, "res.cms.Directory", "err_parent_code_empty"));
        String description = ParamUtil.get(request, "description");
        int type = ParamUtil.getInt(request, "type");
        String pluginCode = ParamUtil.get(request, "pluginCode");
        boolean isHome = ParamUtil.get(request, "isHome").equals("true") ? true : false;

        String strPrice = ParamUtil.get(request, "price");
        double price = 0.0;
        try {
            price = Double.parseDouble(strPrice);
        }
        catch (Exception e) {}

        Leaf lf = new Leaf();
        lf = lf.getLeaf(code);
        if (lf!=null && lf.isLoaded())
            throw new ErrMsgException(SkinUtil.LoadString(request, "res.cms.Directory", "err_same_code") + lf.getName()); // 已存在相同编码的节点
        lf = new Leaf();
        lf.setName(name);
        lf.setCode(code);
        lf.setParentCode(parent_code);
        lf.setDescription(description);
        lf.setType(type);
        lf.setPluginCode(pluginCode);
        lf.setPrice(price);
        lf.setIsHome(isHome);

        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");
        boolean isHome = ParamUtil.get(request, "isHome").equals("true") ? true : false;
        int type = ParamUtil.getInt(request, "type");
        if (code == null) {
            throw new ErrMsgException(SkinUtil.LoadString(request, "res.cms.Directory", "err_need_code"));
        }
        if (name==null) {
            throw new ErrMsgException(SkinUtil.LoadString(request, "res.cms.Directory", "err_need_name"));
        }

        int templateId = ParamUtil.getInt(request, "templateId");
        String parentCode = ParamUtil.get(request, "parentCode");
        String pluginCode = ParamUtil.get(request, "pluginCode");

        String strPrice = ParamUtil.get(request, "price");
        double price = 0.0;
        try {
            price = Double.parseDouble(strPrice);
        }
        catch (Exception e) {}

        Leaf leaf = getLeaf(code);//new Leaf();
        if (!parentCode.equals(leaf.getParentCode())) {
            // 节点不能改变其父节点为其子节点
            Leaf lf = getLeaf(parentCode); // 取得新的父节点
            while (lf!=null && !lf.getCode().equals(lf.ROOTCODE)) {
                // 从parentCode节点往上遍历，如果找到leaf.getParentCode()则证明不合法
                String pCode = lf.getParentCode();
                if (pCode.equals(leaf.getCode()))
                    throw new ErrMsgException(SkinUtil.LoadString(request, "res.cms.Directory", "err_parent_code"));
                    // throw new ErrMsgException("不能将其子节点更改为父节点");
                lf = getLeaf(pCode);
            }
        }

        leaf.setName(name);
        leaf.setDescription(description);
        leaf.setIsHome(isHome);
        leaf.setType(type);
        leaf.setTemplateId(templateId);
        leaf.setPluginCode(pluginCode);
        leaf.setPrice(price);
        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) {
            throw new ErrMsgException(SkinUtil.LoadString(request, "res.cms.Directory", "err_need_code"));
        }
        if ( direction == null ) {
            throw new ErrMsgException(SkinUtil.LoadString(request, "res.cms.Directory", "err_need_direction"));
        }

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


    /**
     * 取得菜单，以layer级目录为大标题，layer+1级目录为小标题
     * @param root_code String 所属的根目录
     */
    public Menu getMenu(String root_code) throws ErrMsgException {
        Directory dir = new Directory();
        Leaf leaf = dir.getLeaf(root_code);

        Menu menu = new Menu();
        MenuItem mi = new MenuItem();
        menu.addItem(mi);
        mi.setHeadLeaf(leaf);

        Vector children = leaf.getChildren();
        Iterator ir = children.iterator();
        while (ir.hasNext()) {
            Leaf lf = (Leaf) ir.next();
            mi.addChildLeaf(lf);
        }

        return menu;
    }

    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);
        if (leaf==null || !leaf.isLoaded())
            return new Vector();
        return leaf.getChildren();
    }

    /**
     * 取得目录的子目录
     * @param layer int 级数 一级或者二级
     * @return String
     */
    public String getSubLeaves(String parentCode, int layer) {
        if (layer>2)
            return "";

        String str = "";
        LeafChildrenCacheMgr lcc = new LeafChildrenCacheMgr(parentCode);
        Vector v = lcc.getList();
        Iterator ir = v.iterator();
        // 进入第一级
        while (ir.hasNext()) {
            Leaf lf = (Leaf) ir.next();
            if (layer==2) {
                 // 进入第二级
                 lcc = new LeafChildrenCacheMgr(lf.getCode());
                 Iterator ir2 = lcc.getList().iterator();
                 while (ir2.hasNext()) {
                     lf = (Leaf) ir2.next();
                     if (str.equals(""))
                         str = StrUtil.sqlstr(lf.getCode());
                     else
                         str += "," + StrUtil.sqlstr(lf.getCode());
                 }
            }
            else {
                if (str.equals(""))
                    str = StrUtil.sqlstr(lf.getCode());
                else
                    str += "," + StrUtil.sqlstr(lf.getCode());
            }

        }
        return str;
    }
}