Java tutorial
/** * Created On 05-Jan-2014 * Copyright 2010 by Primeleaf Consulting (P) Ltd., * #29,784/785 Hendre Castle, * D.S.Babrekar Marg, * Gokhale Road(North), * Dadar,Mumbai 400 028 * India * * All rights reserved. * * This software is the confidential and proprietary information * of Primeleaf Consulting (P) Ltd. ("Confidential Information"). * You shall not disclose such Confidential Information and shall use * it only in accordance with the terms of the license agreement * you entered into with Primeleaf Consulting (P) Ltd. */ package kreidos.diamond.web.action.console; import java.io.File; import java.util.ArrayList; import java.util.Hashtable; import java.util.Iterator; import java.util.List; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import javax.servlet.http.HttpSession; import kreidos.diamond.constants.HTTPConstants; import kreidos.diamond.model.AccessControlManager; import kreidos.diamond.model.AuditLogManager; import kreidos.diamond.model.DocumentManager; import kreidos.diamond.model.dao.DocumentClassDAO; import kreidos.diamond.model.vo.AuditLogRecord; import kreidos.diamond.model.vo.DocumentClass; import kreidos.diamond.model.vo.DocumentRevision; import kreidos.diamond.model.vo.IndexDefinition; import kreidos.diamond.model.vo.User; import kreidos.diamond.security.ACL; import kreidos.diamond.util.FileUploadProgressListener; import kreidos.diamond.web.action.Action; import kreidos.diamond.web.view.WebView; import kreidos.diamond.web.view.console.NewDocumentView; import org.apache.commons.fileupload.FileItem; import org.apache.commons.fileupload.FileItemFactory; import org.apache.commons.fileupload.disk.DiskFileItemFactory; import org.apache.commons.fileupload.servlet.ServletFileUpload; import org.apache.commons.validator.GenericValidator; /** * Author Rahul Kubadia */ public class NewDocumentAction implements Action { @SuppressWarnings("rawtypes") public WebView execute(HttpServletRequest request, HttpServletResponse response) throws Exception { HttpSession session = request.getSession(); User loggedInUser = (User) session.getAttribute(HTTPConstants.SESSION_KRYSTAL); String classId = request.getParameter("classid") != null ? request.getParameter("classid") : "0"; if (request.getMethod().equalsIgnoreCase("POST")) { try { String userName = loggedInUser.getUserName(); String tempFilePath = System.getProperty("java.io.tmpdir"); if (!(tempFilePath.endsWith("/") || tempFilePath.endsWith("\\"))) { tempFilePath += System.getProperty("file.separator"); } //variables String fileName = "", comments = ""; File file = null; // Create a factory for disk-based file items FileItemFactory factory = new DiskFileItemFactory(); // Create a new file upload handler ServletFileUpload upload = new ServletFileUpload(factory); upload.setHeaderEncoding(HTTPConstants.CHARACTER_ENCODING); //Create a file upload progress listener FileUploadProgressListener listener = new FileUploadProgressListener(); upload.setProgressListener(listener); //put the listener in session session.setAttribute("LISTENER", listener); session.setAttribute("UPLOAD_ERROR", null); session.setAttribute("UPLOAD_PERCENT_COMPLETE", new Long(0)); DocumentClass documentClass = null; Hashtable<String, String> indexRecord = new Hashtable<String, String>(); String name = ""; String value = ""; List listItems = upload.parseRequest((HttpServletRequest) request); Iterator iter = listItems.iterator(); FileItem fileItem = null; while (iter.hasNext()) { fileItem = (FileItem) iter.next(); if (fileItem.isFormField()) { name = fileItem.getFieldName(); value = fileItem.getString(HTTPConstants.CHARACTER_ENCODING); if (name.equals("classid")) { classId = value; } if (name.equals("txtNote")) { comments = value; } } else { try { fileName = fileItem.getName(); file = new File(fileName); fileName = file.getName(); file = new File(tempFilePath + fileName); fileItem.write(file); } catch (Exception ex) { session.setAttribute("UPLOAD_ERROR", ex.getLocalizedMessage()); return null; } } } //if if (file.length() <= 0) { //code for checking minimum size of file session.setAttribute("UPLOAD_ERROR", "Zero length document"); return null; } documentClass = DocumentClassDAO.getInstance().readDocumentClassById(Integer.parseInt(classId)); if (documentClass == null) { session.setAttribute("UPLOAD_ERROR", "Invalid document class"); return null; } AccessControlManager aclManager = new AccessControlManager(); ACL acl = aclManager.getACL(documentClass, loggedInUser); if (!acl.canCreate()) { session.setAttribute("UPLOAD_ERROR", "Access Denied"); return null; } String indexValue = ""; String indexName = ""; session.setAttribute("UPLOAD_PERCENT_COMPLETE", new Long(50)); for (IndexDefinition indexDefinition : documentClass.getIndexDefinitions()) { indexName = indexDefinition.getIndexColumnName(); Iterator iter1 = listItems.iterator(); while (iter1.hasNext()) { FileItem item1 = (FileItem) iter1.next(); if (item1.isFormField()) { name = item1.getFieldName(); value = item1.getString(HTTPConstants.CHARACTER_ENCODING); if (name.equals(indexName)) { indexValue = value; String errorMessage = ""; if (indexValue != null) { if (indexDefinition.isMandatory()) { if (indexValue.trim().length() <= 0) { errorMessage = "Invalid input for " + indexDefinition.getIndexDisplayName(); session.setAttribute("UPLOAD_ERROR", errorMessage); return null; } } if (IndexDefinition.INDEXTYPE_NUMBER .equalsIgnoreCase(indexDefinition.getIndexType())) { if (indexValue.trim().length() > 0) { if (!GenericValidator.matchRegexp(indexValue, HTTPConstants.NUMERIC_REGEXP)) { errorMessage = "Invalid input for " + indexDefinition.getIndexDisplayName(); session.setAttribute("UPLOAD_ERROR", errorMessage); return null; } } } else if (IndexDefinition.INDEXTYPE_DATE .equalsIgnoreCase(indexDefinition.getIndexType())) { if (indexValue.trim().length() > 0) { if (!GenericValidator.isDate(indexValue, "yyyy-MM-dd", true)) { errorMessage = "Invalid input for " + indexDefinition.getIndexDisplayName(); session.setAttribute("UPLOAD_ERROR", errorMessage); return null; } } } if (indexValue.trim().length() > indexDefinition.getIndexMaxLength()) { //code for checking index field length errorMessage = "Document index size exceeded for " + "Index Name : " + indexDefinition.getIndexDisplayName() + " [ " + "Index Length : " + indexDefinition.getIndexMaxLength() + " , " + "Actual Length : " + indexValue.length() + " ]"; session.setAttribute("UPLOAD_ERROR", errorMessage); return null; } } indexRecord.put(indexName, indexValue); } } } //while iter } //while indexCfgList session.setAttribute("UPLOAD_PERCENT_COMPLETE", new Long(70)); DocumentRevision documentRevision = new DocumentRevision(); documentRevision.setClassId(documentClass.getClassId()); documentRevision.setDocumentId(0); documentRevision.setRevisionId("1.0"); documentRevision.setDocumentFile(file); documentRevision.setUserName(loggedInUser.getUserName()); documentRevision.setIndexRecord(indexRecord); documentRevision.setComments(comments); DocumentManager documentManager = new DocumentManager(); documentManager.storeDocument(documentRevision, documentClass); //Log the entry to audit logs AuditLogManager.log(new AuditLogRecord(documentRevision.getDocumentId(), AuditLogRecord.OBJECT_DOCUMENT, AuditLogRecord.ACTION_CREATED, userName, request.getRemoteAddr(), AuditLogRecord.LEVEL_INFO, "", "Document created")); session.setAttribute("UPLOAD_PERCENT_COMPLETE", new Long(100)); } catch (Exception e) { e.printStackTrace(System.out); } return null; } else { try { ArrayList<DocumentClass> availableDocumentClasses = DocumentClassDAO.getInstance() .readDocumentClasses(" ACTIVE = 'Y'"); ArrayList<DocumentClass> documentClasses = new ArrayList<DocumentClass>(); AccessControlManager aclManager = new AccessControlManager(); for (DocumentClass documentClass : availableDocumentClasses) { ACL acl = aclManager.getACL(documentClass, loggedInUser); if (acl.canCreate()) { documentClasses.add(documentClass); } } int documentClassId = 0; try { documentClassId = Integer.parseInt(classId); } catch (Exception ex) { request.setAttribute(HTTPConstants.REQUEST_ERROR, "Invalid input"); return (new NewDocumentView(request, response)); } if (documentClassId > 0) { DocumentClass selectedDocumentClass = DocumentClassDAO.getInstance() .readDocumentClassById(documentClassId); request.setAttribute("DOCUMENTCLASS", selectedDocumentClass); } request.setAttribute("CLASSID", documentClassId); request.setAttribute("CLASSLIST", documentClasses); } catch (Exception ex) { ex.printStackTrace(); } } return (new NewDocumentView(request, response)); } }