501 lines
19 KiB
Java
501 lines
19 KiB
Java
/**
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*
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*/
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package org.gcube.portlets.user.workspace.server;
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import java.io.BufferedInputStream;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.FileNotFoundException;
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import java.io.IOException;
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import java.io.InputStream;
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import java.util.Calendar;
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import javax.servlet.ServletException;
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import javax.servlet.http.HttpServlet;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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import javax.servlet.http.HttpSession;
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import org.apache.commons.fileupload.FileUploadException;
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import org.apache.commons.io.FilenameUtils;
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import org.apache.log4j.Logger;
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import org.gcube.common.homelibary.model.items.type.WorkspaceItemType;
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import org.gcube.common.homelibrary.home.exceptions.InternalErrorException;
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import org.gcube.common.homelibrary.home.workspace.Workspace;
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import org.gcube.common.homelibrary.home.workspace.WorkspaceFolder;
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import org.gcube.common.homelibrary.home.workspace.WorkspaceItem;
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import org.gcube.common.homelibrary.home.workspace.exceptions.InsufficientPrivilegesException;
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import org.gcube.common.homelibrary.home.workspace.exceptions.ItemAlreadyExistException;
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import org.gcube.common.homelibrary.home.workspace.exceptions.ItemNotFoundException;
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import org.gcube.common.homelibrary.home.workspace.exceptions.WorkspaceFolderNotFoundException;
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import org.gcube.common.homelibrary.home.workspace.exceptions.WrongDestinationException;
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import org.gcube.common.homelibrary.home.workspace.exceptions.WrongItemTypeException;
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import org.gcube.common.homelibrary.home.workspace.folder.FolderItem;
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import org.gcube.common.homelibrary.home.workspace.folder.items.Report;
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import org.gcube.common.homelibrary.home.workspace.folder.items.ReportTemplate;
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import org.gcube.common.homelibrary.util.Extensions;
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import org.gcube.common.homelibrary.util.MimeTypeUtil;
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import org.gcube.common.homelibrary.util.WorkspaceUtil;
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import org.gcube.common.homelibrary.util.zip.UnzipUtil;
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import org.gcube.portlets.user.workspace.client.ConstantsExplorer;
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import org.gcube.portlets.user.workspace.server.notifications.NotificationsUtil;
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import org.gcube.portlets.user.workspace.server.util.WsUtil;
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import org.gcube.portlets.user.workspace.shared.HandlerResultMessage;
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/**
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*
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* @author Francesco Mangiacrapa francesco.mangiacrapa@isti.cnr.it
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* @Jan 21, 2014
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*
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*/
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public class LocalUploadServlet extends HttpServlet {
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/**
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*
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*/
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protected static final String UTF_8 = "UTF-8";
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public static final String UPLOAD_TYPE = ConstantsExplorer.UPLOAD_TYPE;
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public static final String ID_FOLDER = ConstantsExplorer.ID_FOLDER;
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public static final String UPLOAD_FORM_ELEMENT = ConstantsExplorer.UPLOAD_FORM_ELEMENT;
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public static final String IS_OVERWRITE = ConstantsExplorer.IS_OVERWRITE;
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public static final String FILE = "File";
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protected static Logger logger = Logger.getLogger(LocalUploadServlet.class);
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public static final String D4ST = Extensions.REPORT_TEMPLATE.getName(); //extension of Report Template type
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public static final String D4SR = Extensions.REPORT.getName(); //extension of Report type
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/**
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*
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*/
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private static final long serialVersionUID = -4197748678713054285L;
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/**
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* {@inheritDoc}
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*/
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@Override
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public void init() throws ServletException {
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super.init();
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logger.trace("Workspace "+LocalUploadServlet.class+" ready.");
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
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// System.out.println("GET on LocalUploadServlet");
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logger.trace("GET method in LocalUploadServlet is running");
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String absolutePathFile = "";
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String destinationId = "";
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String uploadType = "";
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boolean isOverwrite = false;
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try{
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absolutePathFile = request.getParameter(UPLOAD_FORM_ELEMENT);
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destinationId = request.getParameter(ID_FOLDER);
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uploadType = request.getParameter(UPLOAD_TYPE);
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isOverwrite = Boolean.parseBoolean(request.getParameter(IS_OVERWRITE));
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}catch (Exception e) {
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logger.error("Error processing GET parameters", e);
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sendError(response, "Internal error: Error during request processing");
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return;
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}
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uploadData(request, response, absolutePathFile, destinationId, uploadType, isOverwrite);
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}
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/**
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* {@inheritDoc}
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*/
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@SuppressWarnings("rawtypes")
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protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
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logger.trace("POST method in LocalUploadServlet is running");
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String absolutePathFile = "";
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String destinationId = "";
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String uploadType = "";
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boolean isOverwrite = false;
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try{
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absolutePathFile = request.getParameter(UPLOAD_FORM_ELEMENT);
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destinationId = request.getParameter(ID_FOLDER);
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uploadType = request.getParameter(UPLOAD_TYPE);
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isOverwrite = Boolean.parseBoolean(request.getParameter(IS_OVERWRITE));
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}catch (Exception e) {
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logger.error("Error processing POST parameters", e);
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sendError(response, "Internal error: Error during request processing");
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return;
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}
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uploadData(request, response, absolutePathFile, destinationId, uploadType, isOverwrite);
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}
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private void uploadData(HttpServletRequest request, HttpServletResponse response, String absolutePathFile, String destinationId,String uploadType,boolean isOverwrite) throws ServletException, IOException{
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File file = null;
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InputStream fileUploadIS = null;
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try {
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logger.info("Upload servlet parameters: [uploadItem: "+absolutePathFile +", destinationId: "+destinationId +", uploadType: "+uploadType+", isOverwrite: "+isOverwrite+"]");
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if(absolutePathFile==null || absolutePathFile.isEmpty())
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throw new FileUploadException("Absolute path is null or empty");
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file = new File(absolutePathFile);
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fileUploadIS = openInputStream(file);
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} catch (Exception e) {
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logger.error("Error processing request in upload servlet", e);
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sendError(response, "Internal error: Error during request processing");
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return;
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}
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if (destinationId == null) {
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logger.error("Error processing request in upload servlet: No destination folder id found");
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sendError(response, "Internal error: No destination folder id found");
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return;
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}
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logger.trace("destination folder id: "+destinationId);
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logger.trace("uploadType: "+uploadType);
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Workspace wa = null;
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try {
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wa = WsUtil.getWorkspace(request.getSession());
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} catch (Exception e) {
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logger.error("Error during workspace retrieving", e);
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response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, "Error processing request in upload servlet");
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return;
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}
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if (wa == null) {
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logger.error("Now workspace found in session");
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sendError(response, "Internal error: No workspace in session");
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return;
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}
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WorkspaceItem item;
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try {
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item = wa.getItem(destinationId);
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} catch (ItemNotFoundException e) {
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logger.error("Error, no destination folder found", e);
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sendError(response, "Internal error: No destination folder found");
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return;
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}
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if (item.getType() != WorkspaceItemType.FOLDER && item.getType() != WorkspaceItemType.SHARED_FOLDER) {
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logger.error("Error processing request in upload servlet: Wrong destination item");
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sendError(response, "Internal error: Wrong destination item");
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return;
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}
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WorkspaceFolder destinationFolder = (WorkspaceFolder) item;
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try {
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//we calculate an unique name for the current destination
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String itemName = "";
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if(!isOverwrite)
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itemName = WorkspaceUtil.getUniqueName(file.getName(), destinationFolder);
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else
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itemName = file.getName();
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String contentType = MimeTypeUtil.getMimeType(itemName, new BufferedInputStream(fileUploadIS));
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logger.trace("Content type (mime type): "+contentType + " unique name: "+itemName);
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String extension = FilenameUtils.getExtension(itemName);
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logger.trace("extension: "+extension);
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if(uploadType.compareTo(FILE)==0) {//IS FILE UPLOAD
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boolean isZipFile = MimeTypeUtil.isZipContentType(contentType);
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if(isZipFile && (extension.compareToIgnoreCase(D4ST)==0)){ //Create REPORT TEMPLATE
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String newItemName = itemName;
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logger.trace("createTemplate: "+newItemName);
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createTemplate(request.getSession(), wa, newItemName, openInputStream(file), destinationFolder, response, isOverwrite);
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}else if(isZipFile && (extension.compareToIgnoreCase(D4SR)==0)){ //Create REPORT
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String newItemName = itemName;
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logger.trace("createReport: "+newItemName);
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createReport(request.getSession(), wa, newItemName, openInputStream(file), destinationFolder, response, isOverwrite);
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}else{ //CREATE AN EXTERNAL FILE
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createExternalFile(request.getSession(), wa, itemName, openInputStream(file), destinationFolder, contentType, response, isOverwrite);
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}
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}else {//IS ARCHIVE UPLOAD
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if (MimeTypeUtil.isZipContentType(contentType)){
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logger.trace("Unziping content");
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UnzipUtil.unzip(destinationFolder, openInputStream(file), itemName);
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//TODO NOTIFY UPLOAD ARCHIVE
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sendMessage(response, "Archive "+absolutePathFile+" imported correctly in "+destinationFolder.getPath());
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} else
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createExternalFile(request.getSession(), wa, itemName, openInputStream(file), destinationFolder, contentType, response, isOverwrite);
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}
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file.delete();
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} catch (InsufficientPrivilegesException e) {
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logger.error("Error creating elements", e);
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sendError(response, "Internal error: Insufficient privileges");
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return;
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} catch (InternalErrorException e) {
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logger.error("Error creating elements", e);
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sendError(response, "Internal error: "+e.getMessage());
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return;
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} catch (ItemAlreadyExistException e) {
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logger.error("Error creating elements", e);
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sendError(response, "Internal error: An item with that name already exists");
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return;
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}catch (Exception e) {
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logger.error("Error creating elements", e);
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sendError(response, "Internal error: An error occurred on uploading the file, try again later");
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return;
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}
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}
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/**
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*
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* @param file
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* @return
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* @throws IOException
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*/
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public FileInputStream openInputStream(File file) throws IOException {
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if (file.exists()) {
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if (file.isDirectory()) {
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throw new IOException("File '" + file
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+ "' exists but is a directory");
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}
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if (file.canRead() == false) {
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throw new IOException("File '" + file + "' cannot be read");
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}
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} else {
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throw new FileNotFoundException("File '" + file
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+ "' does not exist");
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}
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return new FileInputStream(file);
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}
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/**
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*
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* @param httpSession
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* @param workspace
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* @param itemId
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* @param destinationFolderId
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*/
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private void notifyUploadInSharedFolder(final HttpSession httpSession, final Workspace workspace, final String itemId, final String destinationFolderId, final boolean isOverwrite){
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new Thread(){
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public void run() {
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WorkspaceItem sourceItem;
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try {
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sourceItem = workspace.getItem(itemId);
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String sourceSharedId = sourceItem.getIdSharedFolder();
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WorkspaceItem folderDestinationItem = workspace.getItem(destinationFolderId);
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NotificationsUtil.checkSendNotifyChangedItemToShare(httpSession, sourceItem, sourceSharedId, folderDestinationItem,isOverwrite);
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} catch (Exception e) {
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logger.error("Error in notifyUploadInSharedFolder", e);
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}
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};
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}.start();
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}
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private void createExternalFile(HttpSession httpSession, Workspace wa, String itemName, InputStream uploadItem, WorkspaceFolder destinationFolder, String contentType, HttpServletResponse response, boolean isOverwrite) throws InternalErrorException, InsufficientPrivilegesException, ItemAlreadyExistException, IOException {
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FolderItem createdItem = null;
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if(!isOverwrite){
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//we need to recalculate the item name
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itemName = WorkspaceUtil.getUniqueName(itemName, destinationFolder);
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logger.trace("before calling createExternalFile - [itemName: "+itemName+", contentType: "+contentType+"]");
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createdItem = WorkspaceUtil.createExternalFile(destinationFolder, itemName, "", contentType, uploadItem);
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if(createdItem!=null)
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logger.info("Item "+createdItem.getName() + " uploaded correctly");
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}
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else{
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createdItem = overwriteItem(wa, itemName, uploadItem, destinationFolder); //CASE OVERWRITE
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if(createdItem!=null)
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logger.info("Overwrite item "+createdItem.getName() + " uploaded correctly");
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}
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if(createdItem!=null){
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notifyUploadInSharedFolder(httpSession,wa,createdItem.getId(),destinationFolder.getId(), isOverwrite);
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sendMessage(response, "File "+createdItem.getName()+" imported correctly in "+destinationFolder.getPath());
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}
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else
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sendError(response,"Internal error: Workspace Item Not Found");
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}
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private FolderItem overwriteItem(Workspace wa, String itemName, InputStream fileData, WorkspaceFolder destinationFolder){
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FolderItem overwriteItem = null;
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try {
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logger.trace("case overwriting item.. "+itemName);
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overwriteItem = (FolderItem) wa.find(itemName, destinationFolder.getId());
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logger.trace("overwriteItem item was found, id is: "+overwriteItem.getId());
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wa.updateItem(overwriteItem.getId(), fileData);
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logger.trace("updateItem with id: "+overwriteItem.getId()+ ", is completed");
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} catch (ItemNotFoundException e) {
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logger.error("Error in createExternalFile, ItemNotFoundException", e);
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} catch (WrongItemTypeException e) {
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logger.error("Error in createExternalFile, WrongItemTypeException", e);
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} catch (WorkspaceFolderNotFoundException e) {
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logger.error("Error in createExternalFile, WorkspaceFolderNotFoundException", e);
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} catch (WrongDestinationException e) {
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logger.error("Error in createExternalFile, WrongDestinationException", e);
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} catch (InsufficientPrivilegesException e) {
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logger.error("Error in createExternalFile, InsufficientPrivilegesException", e);
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} catch (ItemAlreadyExistException e) {
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logger.error("Error in createExternalFile, ItemAlreadyExistException", e);
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} catch (InternalErrorException e) {
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logger.error("Error in createExternalFile, InternalErrorException", e);
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}catch (Exception e) {
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logger.error("Error in createExternalFile, Exception", e);
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}
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return overwriteItem;
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}
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private void createReport(HttpSession httpSession, Workspace wa, String itemName, InputStream stream, WorkspaceFolder destinationFolder, HttpServletResponse response, boolean isOverwrite) throws InsufficientPrivilegesException, ItemAlreadyExistException, InternalErrorException, IOException{
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try {
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Report report = null;
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if(!isOverwrite){
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itemName = WorkspaceUtil.getUniqueName(itemName, destinationFolder);
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report = wa.createReport(itemName, "", Calendar.getInstance(), Calendar.getInstance(), "", "", "", 0, "", stream, destinationFolder.getId());
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notifyUploadInSharedFolder(httpSession,wa,report.getId(),destinationFolder.getId(), isOverwrite);
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sendMessage(response, "File "+report.getName()+" imported correctly in "+destinationFolder.getPath());
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}
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else{ //CASE OVERWRITE
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FolderItem rep = overwriteItem(wa, itemName, stream, destinationFolder);
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if(rep!=null){
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notifyUploadInSharedFolder(httpSession,wa,rep.getId(),destinationFolder.getId(), isOverwrite);
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sendMessage(response, "File "+rep.getName()+" imported correctly in "+destinationFolder.getPath());
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}
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else
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sendError(response,"Internal error: Workspace Item Not Found");
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}
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} catch (WrongDestinationException e) {
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logger.error("Error creating elements", e);
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sendError(response, "Internal error: Wrong Destination");
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} catch (WorkspaceFolderNotFoundException e) {
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logger.error("Error creating elements", e);
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sendError(response, "Internal error: Workspace Folder Not Found");
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}
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}
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private void createTemplate(HttpSession httpSession, Workspace wa, String itemName, InputStream stream, WorkspaceFolder destinationFolder, HttpServletResponse response, boolean isOverwrite) throws InsufficientPrivilegesException, ItemAlreadyExistException, InternalErrorException, IOException{
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try {
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ReportTemplate template = null;
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if(!isOverwrite){
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itemName = WorkspaceUtil.getUniqueName(itemName, destinationFolder);
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template = wa.createReportTemplate(itemName, "", Calendar.getInstance(), Calendar.getInstance(), "", "", 0, "", stream, destinationFolder.getId());
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notifyUploadInSharedFolder(httpSession,wa,template.getId(),destinationFolder.getId(), isOverwrite);
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sendMessage(response, "File "+template.getName()+" imported correctly in "+destinationFolder.getPath());
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}else{ //CASE OVERWRITE
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FolderItem rep = overwriteItem(wa, itemName, stream, destinationFolder);
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if(rep!=null){
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notifyUploadInSharedFolder(httpSession,wa,rep.getId(),destinationFolder.getId(), isOverwrite);
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sendMessage(response, "File "+rep.getName()+" imported correctly in "+destinationFolder.getPath());
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}
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else
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sendError(response,"Internal error: Workspace Item Not Found");
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}
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} catch (WrongDestinationException e) {
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logger.error("Error creating elements", e);
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sendError(response, "Internal error: Wrong Destination");
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} catch (WorkspaceFolderNotFoundException e) {
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logger.error("Error creating elements", e);
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sendError(response, "Internal error: Workspace Folder Not Found");
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}
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}
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protected void sendError(HttpServletResponse response, String message) throws IOException{
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try {
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response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
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HandlerResultMessage resultMessage = HandlerResultMessage.errorResult(message);
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response.getWriter().write(resultMessage.toString());
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//5.6 Closure of Response Object:
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//When a response is closed, the container must immediately flush all remaining content in the response buffer to the client
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// response.flushBuffer();
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} catch (IOException e){
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logger.warn("IOException class name: "+e.getClass().getSimpleName());
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if (e.getClass().getSimpleName().equals("ClientAbortException"))
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logger.warn("Skipping ClientAbortException: "+e.getMessage());
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else
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throw e; //Sending Exceptions
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}
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}
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protected void sendMessage(HttpServletResponse response, String message) throws IOException{
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try {
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response.setStatus(HttpServletResponse.SC_ACCEPTED);
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HandlerResultMessage resultMessage = HandlerResultMessage.okResult(message);
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response.getWriter().write(resultMessage.toString());
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//5.6 Closure of Response Object:
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//When a response is closed, the container must immediately flush all remaining content in the response buffer to the client
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// response.flushBuffer();
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} catch (IOException e){
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logger.warn("IOException class name: "+e.getClass().getSimpleName());
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if (e.getClass().getSimpleName().equals("ClientAbortException"))
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logger.warn("Skipping ClientAbortException: "+e.getMessage());
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else
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throw e; //Sending Exceptions
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}
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}
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protected void sendWarnMessage(HttpServletResponse response, String message) throws IOException{
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try {
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response.setStatus(HttpServletResponse.SC_ACCEPTED);
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HandlerResultMessage resultMessage = HandlerResultMessage.warnResult(message);
|
|
response.getWriter().write(resultMessage.toString());
|
|
//5.6 Closure of Response Object:
|
|
//When a response is closed, the container must immediately flush all remaining content in the response buffer to the client
|
|
// response.flushBuffer();
|
|
} catch (IOException e){
|
|
logger.warn("IOException class name: "+e.getClass().getSimpleName());
|
|
if (e.getClass().getSimpleName().equals("ClientAbortException"))
|
|
logger.warn("Skipping ClientAbortException: "+e.getMessage());
|
|
else
|
|
throw e; //Sending Exceptions
|
|
}
|
|
}
|
|
}
|