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.systemconfig.server; import java.io.File; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import java.io.PrintWriter; import java.util.List; import com.ephesoft.gxt.core.server.DCMAHttpServlet; import com.ephesoft.gxt.core.shared.constant.CoreCommonConstant; import com.ephesoft.gxt.systemconfig.client.i18n.SystemConfigConstants; import com.ephesoft.gxt.systemconfig.shared.SystemConfigSharedConstants; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.commons.fileupload.FileItem; import org.apache.commons.fileupload.FileItemFactory; import org.apache.commons.fileupload.FileUploadException; import org.apache.commons.fileupload.disk.DiskFileItemFactory; import org.apache.commons.fileupload.servlet.ServletFileUpload; import org.apache.commons.io.FilenameUtils; import com.ephesoft.dcma.batch.service.BatchSchemaService; import com.ephesoft.dcma.util.FileUtils; /** * Servlet for importing regex pool and table column pool. * * @author Ephesoft * * <b>created on</b> Sep 12, 2013 <br/> * @version $LastChangedDate:$ <br/> * $LastChangedRevision:$ <br/> */ public class ImportPoolServlet extends DCMAHttpServlet { /** * serialVersionUID long. */ private static final long serialVersionUID = 1L; /** * Overridden doGet method. */ @Override public final void doGet(final HttpServletRequest request, final HttpServletResponse response) throws IOException { doPost(request, response); } /** * Overridden doPost method. */ @Override public void doPost(final HttpServletRequest req, final HttpServletResponse resp) throws IOException { final BatchSchemaService batchSchemaService = this.getSingleBeanOfType(BatchSchemaService.class); final String lastAttachedZipSourcePath = req.getParameter(SystemConfigConstants.ATTACHED_ZIP_SOURCE_PATH); if (lastAttachedZipSourcePath != null && !lastAttachedZipSourcePath.isEmpty()) { final File zipSoucePath = new File(lastAttachedZipSourcePath); if (zipSoucePath.exists()) { FileUtils.deleteDirectoryAndContentsRecursive(zipSoucePath); } } attachFile(req, resp, batchSchemaService); } /** * Unzip the attached zipped file. * * @param req {@link HttpServletRequest} * @param resp {@link HttpServletResponse} * @param batchSchemaService {@link BatchSchemaService} * @throws IOException */ private void attachFile(final HttpServletRequest req, final HttpServletResponse resp, final BatchSchemaService batchSchemaService) throws IOException { final PrintWriter printWriter = resp.getWriter(); File tempZipFile = null; InputStream instream = null; OutputStream out = null; String tempOutputUnZipDir = CoreCommonConstant.EMPTY_STRING; if (ServletFileUpload.isMultipartContent(req)) { final FileItemFactory factory = new DiskFileItemFactory(); final ServletFileUpload upload = new ServletFileUpload(factory); final String exportSerailizationFolderPath = batchSchemaService.getBatchExportFolderLocation(); final File exportSerailizationFolder = new File(exportSerailizationFolderPath); if (!exportSerailizationFolder.exists()) { exportSerailizationFolder.mkdir(); } String zipFileName = CoreCommonConstant.EMPTY_STRING; String zipPathname = CoreCommonConstant.EMPTY_STRING; List<FileItem> items; try { items = upload.parseRequest(req); for (final FileItem item : items) { if (!item.isFormField()) { zipFileName = item.getName(); if (zipFileName != null) { zipFileName = zipFileName.substring(zipFileName.lastIndexOf(File.separator) + 1); } zipPathname = exportSerailizationFolderPath + File.separator + zipFileName; // get only the file name not whole path if (zipFileName != null) { zipFileName = FilenameUtils.getName(zipFileName); } try { instream = item.getInputStream(); tempZipFile = new File(zipPathname); if (tempZipFile.exists()) { tempZipFile.delete(); } out = new FileOutputStream(tempZipFile); final byte buf[] = new byte[1024]; int len; while ((len = instream.read(buf)) > 0) { out.write(buf, 0, len); } } catch (final FileNotFoundException fileNotFoundException) { log.error("Unable to create the export folder." + fileNotFoundException, fileNotFoundException); printWriter.write("Unable to create the export folder.Please try again."); } catch (final IOException ioException) { log.error("Unable to read the file." + ioException, ioException); printWriter.write("Unable to read the file.Please try again."); } finally { if (out != null) { try { out.close(); } catch (final IOException ioException) { log.info("Could not close stream for file." + tempZipFile); } } if (instream != null) { try { instream.close(); } catch (final IOException ioException) { log.info("Could not close stream for file." + zipFileName); } } } } } } catch (final FileUploadException fileUploadException) { log.error("Unable to read the form contents." + fileUploadException, fileUploadException); printWriter.write("Unable to read the form contents. Please try again."); } tempOutputUnZipDir = exportSerailizationFolderPath + File.separator + zipFileName.substring(0, zipFileName.lastIndexOf(CoreCommonConstant.DOT)) + System.nanoTime(); try { FileUtils.unzip(tempZipFile, tempOutputUnZipDir); } catch (final Exception exception) { log.error("Unable to unzip the file." + exception, exception); printWriter.write("Unable to unzip the file. Please try again."); tempZipFile.delete(); } } else { log.error("Request contents type is not supported."); printWriter.write("Request contents type is not supported."); } if (tempZipFile != null) { tempZipFile.delete(); } printWriter.append(SystemConfigSharedConstants.FILE_PATH).append(tempOutputUnZipDir); //printWriter.append("filePath:").append(tempOutputUnZipDir); printWriter.append(CoreCommonConstant.PIPE); printWriter.flush(); } }