Java tutorial
/********************************************************************************* * Ephesoft is a Intelligent Document Capture and Mailroom Automation program * developed by Ephesoft, Inc. Copyright (C) 2015 Ephesoft Inc. * * This program is free software; you can redistribute it and/or modify it under * the terms of the GNU Affero General Public License version 3 as published by the * Free Software Foundation with the addition of the following permission added * to Section 15 as permitted in Section 7(a): FOR ANY PART OF THE COVERED WORK * IN WHICH THE COPYRIGHT IS OWNED BY EPHESOFT, EPHESOFT DISCLAIMS THE WARRANTY * OF NON INFRINGEMENT OF THIRD PARTY RIGHTS. * * This program is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS * FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more * details. * * You should have received a copy of the GNU Affero General Public License along with * this program; if not, see http://www.gnu.org/licenses or write to the Free * Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA * 02110-1301 USA. * * You can contact Ephesoft, Inc. headquarters at 111 Academy Way, * Irvine, CA 92617, USA. or at email address info@ephesoft.com. * * The interactive user interfaces in modified source and object code versions * of this program must display Appropriate Legal Notices, as required under * Section 5 of the GNU Affero General Public License version 3. * * In accordance with Section 7(b) of the GNU Affero General Public License version 3, * these Appropriate Legal Notices must retain the display of the "Ephesoft" logo. * If the display of the logo is not reasonably feasible for * technical reasons, the Appropriate Legal Notices must display the words * "Powered by Ephesoft". ********************************************************************************/ package com.ephesoft.gxt.admin.server; import java.io.File; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import java.text.SimpleDateFormat; import java.util.Arrays; import java.util.Calendar; import java.util.Date; import java.util.zip.ZipOutputStream; import javax.servlet.ServletOutputStream; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.commons.io.FilenameUtils; import org.apache.commons.lang.SerializationUtils; import com.ephesoft.dcma.batch.service.BatchSchemaService; import com.ephesoft.dcma.core.common.FileType; import com.ephesoft.dcma.da.domain.BatchClass; import com.ephesoft.dcma.da.service.BatchClassService; import com.ephesoft.dcma.util.FileUtils; import com.ephesoft.gxt.core.server.BatchClassUtil; import com.ephesoft.gxt.core.server.DCMAHttpServlet; public class ExportBatchClassDownloadServlet extends DCMAHttpServlet { private static final String IDENTIFIER = "identifier"; private static final String EXPORT_LEARNING = "exportLearning"; /** * */ private static final long serialVersionUID = 1L; private static final String SERIALIZATION_EXT = FileType.SER.getExtensionWithDot(); private static final String ZIP_EXT = FileType.ZIP.getExtensionWithDot(); @Override public final void doPost(HttpServletRequest request, HttpServletResponse response) throws IOException { doGet(request, response); } @Override public void doGet(HttpServletRequest req, HttpServletResponse resp) throws IOException { BatchClassService batchClassService = this.getSingleBeanOfType(BatchClassService.class); BatchSchemaService batchSchemaService = this.getSingleBeanOfType(BatchSchemaService.class); BatchClass batchClass = batchClassService.getLoadedBatchClassByIdentifier(req.getParameter(IDENTIFIER)); String exportLearning = req.getParameter(EXPORT_LEARNING); if (batchClass == null) { log.error("Incorrect batch class identifier specified."); resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, "Incorrect batch class identifier specified."); } else { // Marking exported batch class as 'Advance' as this batch has some advance feature like new FPR.rsp file. batchClass.setAdvancedBatchClass(Boolean.TRUE); Calendar cal = Calendar.getInstance(); String exportSerailizationFolderPath = batchSchemaService.getBatchExportFolderLocation(); SimpleDateFormat formatter = new SimpleDateFormat("MMddyy"); String formattedDate = formatter.format(new Date()); String zipFileName = batchClass.getIdentifier() + "_" + formattedDate + "_" + cal.get(Calendar.HOUR_OF_DAY) + cal.get(Calendar.SECOND); String tempFolderLocation = exportSerailizationFolderPath + File.separator + zipFileName; File copiedFolder = new File(tempFolderLocation); if (copiedFolder.exists()) { copiedFolder.delete(); } copiedFolder.mkdirs(); BatchClassUtil.copyModules(batchClass); BatchClassUtil.copyDocumentTypes(batchClass); BatchClassUtil.copyConnections(batchClass); BatchClassUtil.copyScannerConfig(batchClass); BatchClassUtil.exportEmailConfiguration(batchClass); BatchClassUtil.exportUserGroups(batchClass); BatchClassUtil.exportBatchClassField(batchClass); BatchClassUtil.exportCMISConfiguration(batchClass); // BatchClassUtil.decryptAllPasswords(batchClass); File serializedExportFile = new File( tempFolderLocation + File.separator + batchClass.getIdentifier() + SERIALIZATION_EXT); try { SerializationUtils.serialize(batchClass, new FileOutputStream(serializedExportFile)); File originalFolder = new File( batchSchemaService.getBaseSampleFDLock() + File.separator + batchClass.getIdentifier()); if (originalFolder.isDirectory()) { String[] folderList = originalFolder.list(); Arrays.sort(folderList); for (int i = 0; i < folderList.length; i++) { if (folderList[i].endsWith(SERIALIZATION_EXT)) { // skip previous ser file since new is created. } else if (FilenameUtils.getName(folderList[i]) .equalsIgnoreCase(batchSchemaService.getTestKVExtractionFolderName()) || FilenameUtils.getName(folderList[i]) .equalsIgnoreCase(batchSchemaService.getTestTableFolderName()) || FilenameUtils.getName(folderList[i]).equalsIgnoreCase( batchSchemaService.getFileboundPluginMappingFolderName())) { // Skip this folder continue; } else if (FilenameUtils.getName(folderList[i]) .equalsIgnoreCase(batchSchemaService.getImagemagickBaseFolderName()) && Boolean.parseBoolean(exportLearning)) { FileUtils.copyDirectoryWithContents(new File(originalFolder, folderList[i]), new File(copiedFolder, folderList[i])); } else if (FilenameUtils.getName(folderList[i]).equalsIgnoreCase( batchSchemaService.getSearchSampleName()) && Boolean.parseBoolean(exportLearning)) { FileUtils.copyDirectoryWithContents(new File(originalFolder, folderList[i]), new File(copiedFolder, folderList[i])); } else if (!(FilenameUtils.getName(folderList[i]) .equalsIgnoreCase(batchSchemaService.getImagemagickBaseFolderName()) || FilenameUtils.getName(folderList[i]) .equalsIgnoreCase(batchSchemaService.getSearchSampleName()))) { FileUtils.copyDirectoryWithContents(new File(originalFolder, folderList[i]), new File(copiedFolder, folderList[i])); } } } } catch (FileNotFoundException e) { // Unable to read serializable file log.error("Error occurred while creating the serializable file." + e, e); resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, "Error occurred while creating the serializable file."); } catch (IOException e) { // Unable to create the temporary export file(s)/folder(s) log.error("Error occurred while creating the serializable file." + e, e); resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, "Error occurred while creating the serializable file.Please try again"); } resp.setContentType("application/x-zip\r\n"); resp.setHeader("Content-Disposition", "attachment; filename=\"" + zipFileName + ZIP_EXT + "\"\r\n"); ServletOutputStream out = null; ZipOutputStream zout = null; try { out = resp.getOutputStream(); zout = new ZipOutputStream(out); FileUtils.zipDirectory(tempFolderLocation, zout, zipFileName); resp.setStatus(HttpServletResponse.SC_OK); } catch (IOException e) { // Unable to create the temporary export file(s)/folder(s) log.error("Error occurred while creating the zip file." + e, e); resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, "Unable to export.Please try again."); } finally { // clean up code if (zout != null) { zout.close(); } if (out != null) { out.flush(); } FileUtils.deleteDirectoryAndContentsRecursive(copiedFolder); } } } }