listsubjecttemplateimpl.java

来自「cwbbs 云网论坛源码」· Java 代码 · 共 186 行

package cn.js.fan.module.cms.template;

import java.util.*;

import javax.servlet.http.*;

import cn.js.fan.db.*;
import cn.js.fan.module.cms.*;
import cn.js.fan.util.*;
import com.cloudwebsoft.framework.template.*;
import com.cloudwebsoft.framework.util.LogUtil;
import cn.js.fan.web.Global;


public class ListSubjectTemplateImpl extends ListPart {
    String dirCode = "";
    String query = "";

    public ListSubjectTemplateImpl() {
    }

    public String toString(HttpServletRequest request, List params) {
        if (steps == null)
            return "";

        

        dirCode = StrUtil.getNullStr((String) props.get("dirCode"));

        String dir = dirCode;

        if (dirCode!=null && dirCode.startsWith("request")) {
            int p = dirCode.indexOf(".");
            if (p!=-1) {
                String param = dirCode.substring(p + 1);
                
                dir = ParamUtil.get(request, param);
                if (dir.equals("")) {
                    dir = StrUtil.getNullStr((String)request.getAttribute("dirCode"));
                }
            }
        }

        if (dir.equals(""))
            throw new IllegalArgumentException("ListSubjectTemplateImpl " + getName() + "'s dirCode is empty.");

        boolean isCreateHtml = StrUtil.getNullStr((String)request.getAttribute("isCreateHtml")).equals("true");

        String s = (String) props.get("start");
        if (s!=null && !StrUtil.isNumeric(s))
            throw new IllegalArgumentException("start:" + s +
                                               " is not a number");
        String e = (String) props.get("end");
        if (e!=null && !StrUtil.isNumeric(e))
            throw new IllegalArgumentException("end:" + e + " is not a number");

        
        cn.js.fan.module.cms.Config cfg = new cn.js.fan.module.cms.Config();
        int pageSize = cfg.getIntProperty("cms.listPageSize");

        query = StrUtil.getNullStr((String)props.get("query"));
        int total = 0;
        SubjectListDb sld = new SubjectListDb();
        if (!query.equals("")) {
            
            total = sld.getDocCount(query);
            
        } else {
            query = SQLBuilder.getSubjectDocListSql(dir);
            total = sld.getDocCount(query);
        }

        int myStart = -1, myEnd = -1;

        
        if (s == null && e == null) {
            String cp = ParamUtil.get(request, "CPages");
            if (cp.equals("")) {
                cp = (String) request.getAttribute("CPages");
            }
            int curPage = StrUtil.toInt(cp, 1);

            myStart = (curPage - 1) * pageSize;
            myEnd = curPage * pageSize;

            if (isCreateHtml) {
                
                int listPageHtmlCreateCount = cfg.getIntProperty("cms.listPageHtmlCreateCount");

                

                if (curPage>listPageHtmlCreateCount) {
                    
                    int t = pageSize * paginator.getTotalPages() - total;
                    
                    if (t>0) {
                        myStart -= t;
                        myEnd -= t;
                    }
                }
            }
        } else {
            myStart = Integer.parseInt(s);
            myEnd = Integer.parseInt(e);
        }

        Iterator ir = null;

        total = sld.getDocCount(query);
        ir = sld.getDocuments(query, dir, myStart, myEnd);

        paginator = new Paginator(request, total, pageSize);

        

        StringBuffer buf = new StringBuffer();

        boolean isHtml = cfg.getBooleanProperty("cms.html_doc");

        while (ir.hasNext()) {
            Document doc = (Document) ir.next();
            int nSteps = steps.size();
            

            for (int i = 0; i < nSteps; i++) {
                ITemplate step = (ITemplate) steps.get(i);
                
                if (step instanceof PaginatorPart) {
                    PaginatorPart pp = (PaginatorPart)step;
                    
                    
                    String writeCount = (String)request.getAttribute(pp.hashCode() + "_WriteCount_" + myStart);
                    
                    
                    if ((i==0 || !ir.hasNext()) && writeCount==null) {
                        if (isCreateHtml) {
                            int pageNo = StrUtil.toInt(StrUtil.getNullStr((String)request.getAttribute("pageNo")), 1);
                            String pageStatics = "<script src=\"" + request.getContextPath() + "/inc/subject_list_page.jsp?op=statics&pageNo=" + pageNo + "&dirCode=" + StrUtil.UrlEncode(dir) + "\"></script>";
                            String pageBlock = "<script src=\"" + request.getContextPath() + "/inc/subject_list_page.jsp?pageNo=" + pageNo + "&dirCode=" + StrUtil.UrlEncode(dir) + "\"></script>";

                            buf.append(pp.write(request, this, pageStatics, pageBlock));
                            
                        } else {
                            pp.setUrl("?dirCode=" + StrUtil.UrlEncode(dir));
                            buf.append(pp.write(request, this));
                        }

                        request.setAttribute(pp.hashCode() + "_WriteCount_" + myStart, "y");
                    }
                    else
                        continue;
                }
                else if (step instanceof FieldPart) {
                    
                    FieldPart fp = (FieldPart) step;
                    if (fp.getName().equalsIgnoreCase("linkUrl")) {
                        if (isHtml) {
                            if (Global.virtualPath.equals(""))
                                buf.append("/" + sld.getDocHtmlName(dir, doc, 1));
                            else
                                buf.append("/" + Global.virtualPath + "/" +
                                           sld.getDocHtmlName(dir, doc, 1));
                        } else {
                            buf.append(request.getContextPath() +
                                       "/subject_view.jsp?id=" + doc.getId() + "&dirCode=" + StrUtil.UrlEncode(dir));
                        }
                    } else {
                        
                        buf.append(((FieldPart) step).write(doc));
                    }
                } else if (step instanceof ListPart) {
                    ListPart listPart = (ListPart) step;
                    String dynName = listPart.getName();
                    buf.append("<!-- BEGIN:" + dynName + "-->\n");
                    buf.append(listPart.toString(request, null));
                    buf.append("<!-- END:" + dynName + "-->\n");
                } else { 
                    buf.append(step.toString(request, null));
                }
            }
        }
        return buf.toString();
    }

}