package com.wot.server;
import gwtupload.server.exceptions.UploadActionException;
import gwtupload.server.gae.AppEngineUploadAction;
import gwtupload.shared.UConsts;
import java.io.File;
import java.io.IOException;
import java.util.Hashtable;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.fileupload.FileItem;
/**
* This is an example of how to use UploadAction class.
*
* This servlet saves all received files in a temporary folder,
* and deletes them when the user sends a remove request.
*
* @author Manolo Carrasco Mo�ino
*
*/
public class SampleUploadServlet extends AppEngineUploadAction {
private static final long serialVersionUID = 1L;
Hashtable<String, String> receivedContentTypes = new Hashtable<String, String>();
/**
* Maintain a list with received files and their content types.
*/
Hashtable<String, File> receivedFiles = new Hashtable<String, File>();
/**
* Override executeAction to save the received files in a custom place
* and delete this items from session.
*/
@Override
public String executeAction(HttpServletRequest request, List<FileItem> sessionFiles) throws UploadActionException {
String response = "";
for (FileItem item : sessionFiles) {
if (false == item.isFormField()) {
try {
/// Create a new file based on the remote file name in the client
// String saveName = item.getName().replaceAll("[\\\\/><\\|\\s\"'{}()\\[\\]]+", "_");
// File file =new File("/tmp/" + saveName);
/// Create a temporary file placed in /tmp (only works in unix)
// File file = File.createTempFile("upload-", ".bin", new File("/tmp"));
/// Create a temporary file placed in the default system temp folder
// File file = File.createTempFile("upload-", ".bin");
// item.write(file);
//
// /// Save a list with the received files
// receivedFiles.put(item.getFieldName(), file);
// receivedContentTypes.put(item.getFieldName(), item.getContentType());
//
// /// Send a customized message to the client.
// response += "File saved as " + file.getAbsolutePath();
} catch (Exception e) {
throw new UploadActionException(e);
}
}
}
/// Remove files from session because we have a copy of them
//removeSessionFileItems(request);
/// Send your customized message to the client.
return response;
}
/**
* Get the content of an uploaded file.
*/
@Override
public void getUploadedFile(HttpServletRequest request, HttpServletResponse response) throws IOException {
String fieldName = request.getParameter(UConsts.PARAM_SHOW);
File f = receivedFiles.get(fieldName);
// if (f != null) {
// response.setContentType(receivedContentTypes.get(fieldName));
// FileInputStream is = new FileInputStream(f);
// copyFromInputStreamToOutputStream(is, response.getOutputStream());
// } else {
// renderXmlResponse(request, response, XML_ERROR_ITEM_NOT_FOUND);
// }
}
/**
* Remove a file when the user sends a delete request.
*/
@Override
public void removeItem(HttpServletRequest request, String fieldName) throws UploadActionException {
File file = receivedFiles.get(fieldName);
receivedFiles.remove(fieldName);
receivedContentTypes.remove(fieldName);
if (file != null) {
file.delete();
}
}
}