| /******************************************************************************* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 org.ofbiz.webapp.view; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.PipedInputStream; |
| import java.io.PipedOutputStream; |
| import java.util.Map; |
| |
| import javax.servlet.ServletContext; |
| import javax.servlet.http.HttpServletRequest; |
| import javax.servlet.http.HttpServletResponse; |
| |
| import net.sf.jasperreports.engine.JREmptyDataSource; |
| import net.sf.jasperreports.engine.JasperCompileManager; |
| import net.sf.jasperreports.engine.JasperExportManager; |
| import net.sf.jasperreports.engine.JasperFillManager; |
| import net.sf.jasperreports.engine.JasperReport; |
| |
| import org.ofbiz.base.util.Debug; |
| import org.ofbiz.base.util.UtilHttp; |
| import org.ofbiz.entity.datasource.GenericHelperInfo; |
| import org.ofbiz.entity.transaction.TransactionFactoryLoader; |
| import org.ofbiz.webapp.control.ContextFilter; |
| import org.ofbiz.entity.Delegator; |
| |
| /** |
| * Handles JasperReports PDF view rendering |
| */ |
| public class JasperReportsXmlViewHandler extends AbstractViewHandler { |
| |
| public static final String module = JasperReportsXmlViewHandler.class.getName(); |
| |
| protected ServletContext context; |
| |
| public void init(ServletContext context) throws ViewHandlerException { |
| this.context = context; |
| } |
| |
| public void render(String name, String page, String info, String contentType, String encoding, HttpServletRequest request, HttpServletResponse response) throws ViewHandlerException { |
| // some containers call filters on EVERY request, even forwarded ones, |
| // so let it know that it came from the control servlet |
| |
| if (request == null) { |
| throw new ViewHandlerException("The HttpServletRequest object was null, how did that happen?"); |
| } |
| if (UtilValidate.isEmpty(page)) { |
| throw new ViewHandlerException("View page was null or empty, but must be specified"); |
| } |
| if (UtilValidate.isEmpty(info)) { |
| Debug.logWarning("View info string was null or empty, but must be used to specify an Entity that is mapped to the Entity Engine datasource that the report will use.", module); |
| } |
| |
| // tell the ContextFilter we are forwarding |
| request.setAttribute(ContextFilter.FORWARDED_FROM_SERVLET, Boolean.valueOf(true)); |
| |
| Delegator delegator = (Delegator) request.getAttribute("delegator"); |
| |
| if (delegator == null) { |
| throw new ViewHandlerException("The delegator object was null, how did that happen?"); |
| } |
| |
| try { |
| String datasourceName = delegator.getEntityHelperName(info); |
| InputStream is = context.getResourceAsStream(page); |
| Map parameters = UtilHttp.getParameterMap(request); |
| |
| JasperReport report = JasperCompileManager.compileReport(is); |
| |
| response.setContentType("text/xml"); |
| |
| PipedOutputStream fillToPrintOutputStream = new PipedOutputStream(); |
| PipedInputStream fillToPrintInputStream = new PipedInputStream(fillToPrintOutputStream); |
| |
| if (UtilValidate.isNotEmpty(datasourceName)) { |
| JasperFillManager.fillReportToStream(report, fillToPrintOutputStream, parameters, TransactionFactoryLoader.getInstance().getConnection(new GenericHelperInfo(null, datasourceName))); |
| } else { |
| JasperFillManager.fillReportToStream(report, fillToPrintOutputStream, parameters, new JREmptyDataSource()); |
| } |
| JasperExportManager.exportReportToXmlStream(fillToPrintInputStream, response.getOutputStream()); |
| } catch (IOException ie) { |
| throw new ViewHandlerException("IO Error in region", ie); |
| } catch (java.sql.SQLException e) { |
| throw new ViewHandlerException("Database error while running report", e); |
| } catch (Exception e) { |
| throw new ViewHandlerException("Error in report", e); |
| // } catch (ServletException se) { |
| // throw new ViewHandlerException("Error in region", se.getRootCause()); |
| } |
| } |
| } |