com.bstek.ureport.console.html.HtmlPreviewServletAction Maven / Gradle / Ivy
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/*******************************************************************************
* Copyright 2017 Bstek
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy
* of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
******************************************************************************/
package com.bstek.ureport.console.html;
import java.io.IOException;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.util.Collection;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.lang.StringUtils;
import org.apache.velocity.Template;
import org.apache.velocity.VelocityContext;
import org.codehaus.jackson.map.ObjectMapper;
import com.bstek.ureport.build.Context;
import com.bstek.ureport.build.ReportBuilder;
import com.bstek.ureport.build.paging.Page;
import com.bstek.ureport.cache.CacheUtils;
import com.bstek.ureport.chart.ChartData;
import com.bstek.ureport.console.MobileUtils;
import com.bstek.ureport.console.RenderPageServletAction;
import com.bstek.ureport.console.cache.TempObjectCache;
import com.bstek.ureport.console.exception.ReportDesignException;
import com.bstek.ureport.definition.Paper;
import com.bstek.ureport.definition.ReportDefinition;
import com.bstek.ureport.definition.searchform.FormPosition;
import com.bstek.ureport.exception.ReportComputeException;
import com.bstek.ureport.export.ExportManager;
import com.bstek.ureport.export.FullPageData;
import com.bstek.ureport.export.PageBuilder;
import com.bstek.ureport.export.ReportRender;
import com.bstek.ureport.export.SinglePageData;
import com.bstek.ureport.export.html.HtmlProducer;
import com.bstek.ureport.export.html.HtmlReport;
import com.bstek.ureport.export.html.SearchFormData;
import com.bstek.ureport.model.Report;
/**
* @author Jacky.gao
* @since 2017年2月15日
*/
public class HtmlPreviewServletAction extends RenderPageServletAction {
private ExportManager exportManager;
private ReportBuilder reportBuilder;
private ReportRender reportRender;
private HtmlProducer htmlProducer=new HtmlProducer();
@Override
public void execute(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
String method=retriveMethod(req);
if(method!=null){
invokeMethod(method, req, resp);
}else{
VelocityContext context = new VelocityContext();
HtmlReport htmlReport=null;
String errorMsg=null;
try{
htmlReport=loadReport(req);
}catch(Exception ex){
if(!(ex instanceof ReportDesignException)){
ex.printStackTrace();
}
errorMsg=buildExceptionMessage(ex);
}
String title=buildTitle(req);
context.put("title", title);
if(htmlReport==null){
context.put("content", "报表计算出错，错误信息如下：
"+errorMsg+"");
context.put("error", true);
context.put("searchFormJs", "");
context.put("downSearchFormHtml", "");
context.put("upSearchFormHtml", "");
}else{
SearchFormData formData=htmlReport.getSearchFormData();
if(formData!=null){
context.put("searchFormJs", formData.getJs());
if(formData.getFormPosition().equals(FormPosition.up)){
context.put("upSearchFormHtml", formData.getHtml());
context.put("downSearchFormHtml", "");
}else{
context.put("downSearchFormHtml", formData.getHtml());
context.put("upSearchFormHtml", "");
}
}else{
context.put("searchFormJs", "");
context.put("downSearchFormHtml", "");
context.put("upSearchFormHtml", "");
}
context.put("content", htmlReport.getContent());
context.put("style", htmlReport.getStyle());
context.put("reportAlign", htmlReport.getReportAlign());
context.put("totalPage", htmlReport.getTotalPage());
context.put("totalPageWithCol", htmlReport.getTotalPageWithCol());
context.put("pageIndex", htmlReport.getPageIndex());
context.put("chartDatas", convertJson(htmlReport.getChartDatas()));
context.put("error", false);
context.put("file", req.getParameter("_u"));
context.put("intervalRefreshValue",htmlReport.getHtmlIntervalRefreshValue());
String customParameters=buildCustomParameters(req);
context.put("customParameters", customParameters);
context.put("_t", "");
Tools tools=null;
if(MobileUtils.isMobile(req)){
tools=new Tools(false);
tools.setShow(false);
}else{
String toolsInfo=req.getParameter("_t");
if(StringUtils.isNotBlank(toolsInfo)){
tools=new Tools(false);
if(toolsInfo.equals("0")){
tools.setShow(false);
}else{
String[] infos=toolsInfo.split(",");
for(String name:infos){
tools.doInit(name);
}
}
context.put("_t", toolsInfo);
context.put("hasTools", true);
}else{
tools=new Tools(true);
}
}
context.put("tools", tools);
}
context.put("contextPath", req.getContextPath());
resp.setContentType("text/html");
resp.setCharacterEncoding("utf-8");
Template template=ve.getTemplate("ureport-html/html-preview.html","utf-8");
PrintWriter writer=resp.getWriter();
template.merge(context, writer);
writer.close();
}
}
private String buildTitle(HttpServletRequest req){
String title=req.getParameter("_title");
if(StringUtils.isBlank(title)){
title=req.getParameter("_u");
title=decode(title);
int point=title.lastIndexOf(".ureport.xml");
if(point>-1){
title=title.substring(0,point);
}
if(title.equals("p")){
title="设计中报表";
}
}else{
title=decode(title);
}
return title+"-ureport";
}
private String convertJson(Collection data){
if(data==null || data.size()==0){
return "";
}
ObjectMapper mapper=new ObjectMapper();
try {
String json = mapper.writeValueAsString(data);
return json;
} catch (Exception e) {
throw new ReportComputeException(e);
}
}
public void loadData(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
HtmlReport htmlReport=loadReport(req);
writeObjectToJson(resp, htmlReport);
}
public void loadPrintPages(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
String file=req.getParameter("_u");
file=decode(file);
if(StringUtils.isBlank(file)){
throw new ReportComputeException("Report file can not be null.");
}
Map parameters = buildParameters(req);
ReportDefinition reportDefinition=null;
if(file.equals(PREVIEW_KEY)){
reportDefinition=(ReportDefinition)TempObjectCache.getObject(PREVIEW_KEY);
if(reportDefinition==null){
throw new ReportDesignException("Report data has expired,can not do export excel.");
}
}else{
reportDefinition=reportRender.getReportDefinition(file);
}
Report report=reportBuilder.buildReport(reportDefinition, parameters);
Map chartMap=report.getContext().getChartDataMap();
if(chartMap.size()>0){
CacheUtils.storeChartDataMap(chartMap);
}
FullPageData pageData=PageBuilder.buildFullPageData(report);
StringBuilder sb=new StringBuilder();
List> list=pageData.getPageList();
Context context=report.getContext();
if(list.size()>0){
for(int i=0;i columnPages=list.get(i);
if(i==0){
String html=htmlProducer.produce(context,columnPages,pageData.getColumnMargin(),false);
sb.append(html);
}else{
String html=htmlProducer.produce(context,columnPages,pageData.getColumnMargin(),false);
sb.append(html);
}
}
}else{
List pages=report.getPages();
for(int i=0;i map=new HashMap();
map.put("html", sb.toString());
writeObjectToJson(resp, map);
}
public void loadPagePaper(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
String file=req.getParameter("_u");
file=decode(file);
if(StringUtils.isBlank(file)){
throw new ReportComputeException("Report file can not be null.");
}
ReportDefinition report=null;
if(file.equals(PREVIEW_KEY)){
report=(ReportDefinition)TempObjectCache.getObject(PREVIEW_KEY);
if(report==null){
throw new ReportDesignException("Report data has expired.");
}
}else{
report=reportRender.getReportDefinition(file);
}
Paper paper=report.getPaper();
writeObjectToJson(resp, paper);
}
private HtmlReport loadReport(HttpServletRequest req) {
Map parameters = buildParameters(req);
HtmlReport htmlReport=null;
String file=req.getParameter("_u");
file=decode(file);
String pageIndex=req.getParameter("_i");
if(StringUtils.isBlank(file)){
throw new ReportComputeException("Report file can not be null.");
}
if(file.equals(PREVIEW_KEY)){
ReportDefinition reportDefinition=(ReportDefinition)TempObjectCache.getObject(PREVIEW_KEY);
if(reportDefinition==null){
throw new ReportDesignException("Report data has expired,can not do preview.");
}
Report report=reportBuilder.buildReport(reportDefinition, parameters);
Map chartMap=report.getContext().getChartDataMap();
if(chartMap.size()>0){
CacheUtils.storeChartDataMap(chartMap);
}
htmlReport=new HtmlReport();
String html=null;
if(StringUtils.isNotBlank(pageIndex) && !pageIndex.equals("0")){
Context context=report.getContext();
int index=Integer.valueOf(pageIndex);
SinglePageData pageData=PageBuilder.buildSinglePageData(index, report);
List pages=pageData.getPages();
if(pages.size()==1){
Page page=pages.get(0);
html=htmlProducer.produce(context,page,false);
}else{
html=htmlProducer.produce(context,pages,pageData.getColumnMargin(),false);
}
htmlReport.setTotalPage(pageData.getTotalPages());
htmlReport.setPageIndex(index);
}else{
html=htmlProducer.produce(report);
}
if(report.getPaper().isColumnEnabled()){
htmlReport.setColumn(report.getPaper().getColumnCount());
}
htmlReport.setChartDatas(report.getContext().getChartDataMap().values());
htmlReport.setContent(html);
htmlReport.setTotalPage(report.getPages().size());
htmlReport.setStyle(reportDefinition.getStyle());
htmlReport.setSearchFormData(reportDefinition.buildSearchFormData(report.getContext().getDatasetMap(),parameters));
htmlReport.setReportAlign(report.getPaper().getHtmlReportAlign().name());
htmlReport.setHtmlIntervalRefreshValue(report.getPaper().getHtmlIntervalRefreshValue());
}else{
if(StringUtils.isNotBlank(pageIndex) && !pageIndex.equals("0")){
int index=Integer.valueOf(pageIndex);
htmlReport=exportManager.exportHtml(file,req.getContextPath(),parameters,index);
}else{
htmlReport=exportManager.exportHtml(file,req.getContextPath(),parameters);
}
}
return htmlReport;
}
private String buildCustomParameters(HttpServletRequest req){
StringBuilder sb=new StringBuilder();
Enumeration enumeration=req.getParameterNames();
while(enumeration.hasMoreElements()){
Object obj=enumeration.nextElement();
if(obj==null){
continue;
}
String name=obj.toString();
String value=req.getParameter(name);
if(name==null || value==null || (name.startsWith("_") && !name.equals("_n"))){
continue;
}
if(sb.length()>0){
sb.append("&");
}
sb.append(name);
sb.append("=");
sb.append(value);
}
return sb.toString();
}
private String buildExceptionMessage(Throwable throwable){
Throwable root=buildRootException(throwable);
StringWriter sw=new StringWriter();
PrintWriter pw=new PrintWriter(sw);
root.printStackTrace(pw);
String trace=sw.getBuffer().toString();
trace=trace.replaceAll("\n", "
");
pw.close();
return trace;
}
public void setExportManager(ExportManager exportManager) {
this.exportManager = exportManager;
}
public void setReportBuilder(ReportBuilder reportBuilder) {
this.reportBuilder = reportBuilder;
}
public void setReportRender(ReportRender reportRender) {
this.reportRender = reportRender;
}
@Override
public String url() {
return "/preview";
}
}
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