reportformcontroller.java

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package mcaps.core.reporting.webapp.controller;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.List;
import java.util.Locale;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import mcap.core.base.webapp.controller.BaseFormController;
import mcap.core.logging.Log;
import mcap.core.reporting.model.Report;
import mcap.core.reporting.model.SubReport;
import mcap.core.reporting.service.ReportException;
import mcap.core.reporting.service.ReportManager;
import mcap.core.reporting.util.JasperReportDesignUtil;
import mcap.core.reporting.util.NameConstants;
import mcap.core.user.service.RoleManager;
import mcap.core.util.FileUtil;
import net.sf.jasperreports.engine.JRException;
import net.sf.jasperreports.engine.JasperCompileManager;
import net.sf.jasperreports.engine.design.JasperDesign;

import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.context.ApplicationContextException;
import org.springframework.validation.BindException;
import org.springframework.web.bind.RequestUtils;
import org.springframework.web.multipart.MultipartHttpServletRequest;
import org.springframework.web.multipart.commons.CommonsMultipartFile;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.view.RedirectView;


/**
 * @deprecated The class is no longer be used. It is replaced by the 
 * mcaps.core.reporting.webapp.controller.ReportWizardController to 
 * provide better support for advanced report template editing.
 * 
 * Implementation of BaseFormController that interacts with the 
 * ReportManager to handle request to query database and generate 
 * dynamic report.
 * 
 * @author jov
 * @date Jan 12, 2006
 * @version 1.0.1.0
 */
public class ReportFormController extends BaseFormController implements InitializingBean{

	private ReportManager reportManager;
	private RoleManager roleManager;
	private String reportDir;
	private String fullReportDir;
	
	
	
	/**
	 * Returns the reportDir.
	 * @return String
	 */
	public String getReportDir () {
		return reportDir;
	}
	
	/**
	 * Sets the reportDir.
	 * @param reportDir The reportDir to set.
	 */
	public void setReportDir (String reportDir) {
		this.reportDir = reportDir;
	}

	
	/**
	 * Returns the reportManager.
	 * @return ReportManager
	 */
	public ReportManager getReportManager () {
		return reportManager;
	}
	
	/**
	 * Sets the reportManager.
	 * @param reportManager The reportManager to set.
	 */
	public void setReportManager (ReportManager reportManager) {
		this.reportManager = reportManager;
	}
	
	/**
	 * Returns the roleManager.
	 * @return RoleManager
	 */
	public RoleManager getRoleManager () {
		return roleManager;
	}


	
	/**
	 * Sets the roleManager.
	 * @param roleManager The roleManager to set.
	 */
	public void setRoleManager (RoleManager roleManager) {
		this.roleManager = roleManager;
	}

//===========================================================================================================
//INITIALIZING BEAN IMPLEMENTATION
//===========================================================================================================


	/* (non-Javadoc)
	 * @see org.springframework.beans.factory.InitializingBean#afterPropertiesSet()
	 * Invoked by a BeanFactory after it has set all bean properties supplied. This allows 
	 * the bean instance to perform initialization only possible when all bean properties 
	 * have been set and to throw an exception in the event of misconfiguration. 
	 */
	public void afterPropertiesSet() throws Exception {
		if (reportManager == null)
			throw new ApplicationContextException(
					"Must set reportManager bean property on " + getClass());
		if (roleManager == null)
			throw new ApplicationContextException(
					"Must set roleManager bean property on " + getClass());
		
		System.setProperty(
				"jasper.reports.compile.class.path",
				this.getServletContext().getRealPath("/WEB-INF/lib/jasperreports-0.6.8.jar")
					+ System.getProperty("path.separator")
					+ this.getServletContext().getRealPath("/WEB-INF/classes/"));

		String rootDir = getServletContext().getRealPath("/");
		if (this.reportManager.getRootDir() == null)
			this.reportManager.setRootDir(rootDir);
		
		fullReportDir = getServletContext().getRealPath(reportDir);
		File file = new File(fullReportDir);
		if (!file.exists()){
			file.mkdir();
		}
	}

	/* (non-Javadoc)
	 * @see org.springframework.web.servlet.mvc.AbstractFormController#processFormSubmission(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse, java.lang.Object, org.springframework.validation.BindException)
	 * Checks for an action that should be executed without respect to binding errors, like a cancel action.
	 */
	public ModelAndView processFormSubmission (HttpServletRequest request,
			HttpServletResponse response, Object command, BindException errors)
			throws Exception {
		
		//	if the request is "Cancel"
		if (request.getParameter ("cancel") != null) {
			if (!StringUtils.equals (request.getParameter ("from"), "list")) {
				return new ModelAndView (getCancelView ());
			}
			else {
				return new ModelAndView (getSuccessView ());
			}
		}

		return super.processFormSubmission (request, response, command, errors);
	}

	
	/* (non-Javadoc)
	 * @see org.springframework.web.servlet.mvc.BaseCommandController#onBind(javax.servlet.http.HttpServletRequest, java.lang.Object, org.springframework.validation.BindException)
	 */
	protected void onBind(HttpServletRequest request, Object command,
			BindException errors) {
		
		Report report = (Report)command;
		
		//Checks whether or not file already exists and
		//whether the report template is valid
		if (StringUtils.equals (request.getParameter ("method"), "add")) {
			MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest) request;
		  CommonsMultipartFile commonFile = (CommonsMultipartFile)multipartRequest.getFile("reportFile");
			String oriFileName = commonFile.getOriginalFilename();			
			String fileName = new StringBuffer()
												.append(fullReportDir).append(File.separator)
												.append(report.getName()).append(File.separator)
												.append(oriFileName).toString();
			File reportFile = new File(fileName);
			if (reportFile.exists ()) {
				errors.rejectValue ("sourceFile", "errors.filename.exists",
						new Object[] { oriFileName },
						"A file with the same name already exists.");
			}else{		
			  try {
					JasperDesign design = JasperReportDesignUtil.instance.getJasperDesign(commonFile.getInputStream());
					if (!JasperReportDesignUtil.instance.isValidReportDesign(design)){
		    		errors.rejectValue("report.sourceFile","errors.invalid.report",new Object[]{oriFileName},"Invalid report template.");
					}
				}
				catch (JRException e) {
	    		errors.rejectValue("report.sourceFile","errors.loadreport.fail",new Object[]{oriFileName},"Error while loading report template.");
				}
				catch (IOException e) {
	    		errors.rejectValue("report.sourceFile","errors.upload.fail",new Object[]{oriFileName},"Error while uploading report template.");
				}			
			}
		}
	}

	/* (non-Javadoc)
	 * @see org.springframework.web.servlet.mvc.SimpleFormController#onSubmit(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse, java.lang.Object, org.springframework.validation.BindException)
	 * Next to be called if processFormSubmission method called the
	 * super.processFormSubmission
	 */
	public ModelAndView onSubmit (HttpServletRequest request,
			HttpServletResponse response, Object command, BindException errors)
			throws Exception {
		
		Report report = (Report) command;
		
		Locale locale = request.getLocale ();
		
		if (request.getParameter ("delete") != null) {
			//Delete report and subreport(s) from file system
			File reportDir = new File(this.getServletContext()
					.getRealPath(new StringBuffer().append(this.reportDir)
					.append(File.separator).append(report.getName()).toString()));
			if (reportDir.exists()){
				FileUtil.deleteDir(reportDir,true);
			}
			
			this.getReportManager ().removeReport (report.getName());
			
			saveMessage (request, getText ("report.deleted", report.getName(),
										locale));
			return new ModelAndView (getSuccessView ());
		}
		else {
			
			report.getSubReports().clear();
			//Process report
			Log.info("Process Report");
			File file = processReport(request,response,command,errors);
			if (file != null){
				Log.info("New uploaded file found.");
				report.setSourceFile(new StringBuffer().append(this.reportDir).append(File.separator)
																.append(report.getName()).append(File.separator)
																.append(file.getName()).toString());
				Log.info("New uploaded file : "  + report.getSourceFile());
			}else{
				Log.info("No uploaded file found");
				if (report.getSourceFile() != null){
					String fileName = getServletContext().getRealPath(report.getSourceFile());
					file = new File(fileName);
				}
				Log.info("Create file object from existing file");
			}
			
			//Process sub report - Check if any subreport exists
			Log.info("Process sub report");
			List subReportParam = this.getReportManager().getSubReportParam(file);
			Log.info("No. of sub reports found : " + subReportParam.size());

			if (subReportParam.size() > 0){
				Log.info("Create sub report entry");
				for(int i=0; i < subReportParam.size(); i++){
					SubReport subreport = new SubReport(report.getName(),(String)subReportParam.get(i));
					if (StringUtils.equals (request.getParameter ("method"), "edit")) {
						Log.info("Process Sub Report");
						File subfile = processSubReport(subreport,request,response,command,errors);
						if (subfile != null){
							Log.info("New uploaded sub report file found");