Hi All,
Thank you for all your answers, I've read the form specification (
http://www.w3.org/TR/html4/interact/forms.html)
and then I looked into Tapestry's upload component! I understand this
component and forms much better now.
Again, my goal is: An upload form that uploads files and stores it in
GAE(BLOB) with Tapestry5!
I've made my own ServletFilter, with an own MultipartDecodeImpl and a
request which decodes the form before passing it to the page Class.
I've pretty much used a lot of aspects of the Upload component.
But instead of making a new component, I've handled everything in my own
MultpartDecoder and filter!
The problem right now is, that I get an exception: after passing the handler
to the chain!
java.util.zip.ZipException: Not in GZIP format
It looks like I've forgot to zip something? But I don't know what, why and
where?
################################### This is My RequestFilter
public class MyProjectUploadFilter implements HttpServletRequestFilter {
@Inject
private Logger logger;
private final MyProjectMultipartDecoder decoder;
private final String method = "post";
/**
* Part of HTTP content type header.
*/
public static final String MULTIPART = "multipart/";
public MyProjectUploadFilter(MyProjectMultipartDecoder decoder) {
this.decoder = decoder;
}
@Override
public boolean service(HttpServletRequest request, HttpServletResponse
response, HttpServletRequestHandler handler) throws IOException {
if (method.equalsIgnoreCase(request.getMethod()) ) {
HttpServletRequest newRequest = ServletFileUpload.isMultipartContent(request)
? decoder.decode(request) : request;
return handler.service(newRequest, response);
}
return handler.service(request, response);
}
}
################# This is my MultpartdecoderImpl
public class MyProjectMultipartDecoderImpl implements
MyProjectMultipartDecoder {
private final Map<String, Blob> uploads = CollectionFactory.newMap();
private final Logger logger;
private final FileItemFactory fileItemFactory;
//
// private final long maxRequestSize;
//
private final long maxFileSize = 250000;
private final String requestEncoding;
private FileUploadException uploadException;
public MyProjectMultipartDecoderImpl(Logger log, FileItemFactory
fileItemFactory) {
this.logger = log;
this.fileItemFactory = fileItemFactory;
this.requestEncoding = "UTF-8";
}
@Override
public HttpServletRequest decode(HttpServletRequest request) {
try {
request.setCharacterEncoding(requestEncoding);
} catch (UnsupportedEncodingException ex) {
throw new RuntimeException(ex);
}
FileItemIterator fileItems = parseRequest(request);
return processFileItems(request, fileItems);
}
@Override
public Blob getFileUpload(String parameterName) {
return uploads.get(parameterName);
}
@Override
public FileUploadException getUploadException() {
return uploadException;
}
protected FileItemIterator parseRequest(HttpServletRequest request) {
try {
return createFileUpload().getItemIterator(request);
} catch (FileUploadException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return null;
}
protected ServletFileUpload createFileUpload() {
ServletFileUpload upload = new ServletFileUpload(fileItemFactory);
// // set maximum file upload size
// upload.setSizeMax(maxRequestSize);
upload.setFileSizeMax(maxFileSize);
return upload;
}
protected HttpServletRequest processFileItems(HttpServletRequest request,
FileItemIterator fileItems) {
if (uploadException == null && (fileItems == null)) {
return request;
}
ParametersServletRequestWrapper wrapper = new
ParametersServletRequestWrapper(request);
try {
for (FileItemIterator it = fileItems; it.hasNext();) {
FileItemStream item;
item = it.next();
if (item.isFormField()) {
wrapper.addParameter(item.getFieldName(), item.getFieldName());
} else {
logger.debug("########" + item.getName());
logger.debug("########" + item.getFieldName());
wrapper.addParameter(item.getFieldName(), item.getName());
}
}
} catch (FileUploadException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return wrapper;
}
protected void addUploadedFile(String name, Blob file) {
uploads.put(name, file);
}
}
################################ THIS IS MY FORM
<html t:type="layout"
title="${message:title}"
xmlns:t="http://tapestry.apache.org/schema/tapestry_5_1_0.xsd";
xmlns:p="tapestry:parameter">
<p>Post a new product:</p>
<t:form t:id="upload" method="POST" >
<t:errors/>
<t:beaneditor t:id="product" object="product" />
<br/><br/>
<input type="file" id="ga" name="file"/>
<br/><br/>
<input t:type="submit" t:id="button" t:value="message:button-label"
/>
</t:form>
</html>
#################################### THIS IS MY EXCEPTION
-
- Triggering event 'action' on personal/AddProduct:upload
- org.apache.tapestry5.runtime.ComponentEventException
java.util.zip.ZipException: Not in GZIP format
On 9 April 2011 16:31, Taha Hafeez <tawus.tapes...@gmail.com> wrote:
>
> If you can use an ajax file uploader then you can modify this to meet your
> needs
>
>
> http://tapestry.1045711.n5.nabble.com/Tapestry-FileUploader-Integration-td4268987.html
>
> regards
> Taha
>
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