btw, most of this code is duplicated (and probably less optimally impl'd) in
ERXFileUtilities methods … so .. you know .. don't copy this.
ms
On May 3, 2011, at 12:39 PM, Pascal Robert wrote:
>
> Le 2011-05-03 à 12:35, Mike Schrag a écrit :
>
>> if you can guarantee small data, and you have some level of confidence that
>> your service can't be abused, file uploading into an NSData is maybe OK …
>> otherwise you should be using the multipart request file upload API's in WO.
>> You'll have to do a little plumbing yourself.
>
> As (coming from one of Apple example apps):
>
> WOMultipartIterator mpI = request().multipartIterator();
> if (mpI == null) {
> throw new IllegalStateException("Could not get the WOMultipartIterator.
> Verify that the WOForm's 'enctype' binding is set to 'multipart/form-data'");
> }
>
> WOMultipartIterator.WOFormData wfd = null;
> while (true) {
> wfd = mpI.nextFormData();
> if (wfd != null) break;
> if
> ("thefile".equals(wfd.contentDispositionHeaders().valueForKey("name"))) break;
> }
>
> if ( (wfd != null) && (wfd.isFileUpload()) ) {
> // Get the filename information from the request
> NSDictionary contentDispHeaders = wfd.contentDispositionHeaders();
> String aFileName = (String) contentDispHeaders.valueForKey("filename");
>
> // Get just the name for the uploaded file from aFileName.
> String fileName = null;
> fileName = NSPathUtilities.lastPathComponent( aFileName );
> String outputFilePath = new String("/tmp" + File.separator + fileName );
>
> // Write the file out to the location
> if ((fileName!=null) && (fileName.length()>0)) {
> try {
> InputStream wfdIs = wfd.formDataInputStream();
> FileOutputStream fileOutputStream = new
> FileOutputStream(outputFilePath);
>
> // This will use a 1MB buffer to transfer chunks of data from the
> Client to the Disk
> int read = 0;
> byte[] buffer = new byte[1024 * 1024]; // 1MB buffer
> do {
> read = wfdIs.read(buffer);
> if (read != -1) {
> fileOutputStream.write(buffer, 0, read);
> } else {
> break;
> }
> } while (read != -1);
>
> fileOutputStream.flush();
> fileOutputStream.close();
>
> } catch (IOException e) {
> NSLog.err.appendln("Error writing file: " + e);
> }
> } else {
> // fileName == null or length 0
> NSLog.out.appendln( "No File Uploaded" );
> }
> } else {
> // wfd == null means that there was no file uploaded.
> NSLog.out.appendln( "No File Uploaded" );
> }
>
>> ms
>>
>> On May 3, 2011, at 12:31 PM, Jesse Tayler wrote:
>>
>>> Mike -
>>>
>>> Oh, thanks, and I probably don't want to, but I didn't see the ERRestRoute
>>> I kinda expected?
>>>
>>> I just put image data (NSData) into the form on my client app, and figured
>>> I'd get it out of the form on the server.
>>>
>>> What's my best rout to implement this type of file upload, given that my
>>> model and eo's work ok for the web client already.
>>>
>>> I'm just going from iphone to WO, as I'm sure many of us are.
>>>
>>>
>>> On May 3, 2011, at 12:22 PM, Mike Schrag wrote:
>>>
>>>> write it to a file … you probably don't ever want file uploads into
>>>> NSData's, btw.
>>>>
>>>> ms
>>>>
>>>> On May 3, 2011, at 12:17 PM, Jesse Tayler wrote:
>>>>
>>>>> Thanks Henrique,
>>>>>
>>>>> Ah, a processor makes sense. I use "S3" and I'm just getting Form-values
>>>>> for the filename and nsdata.
>>>>>
>>>>> What I can see is an API with a java.io.File, and not the NSData
>>>>> "posterData" which I got from the form values?
>>>>>
>>>>> NSData posterData =
>>>>> (NSData)formValuesDictionary.valueForKeyPath("poster");
>>>>> ERAttachment attachment =
>>>>> ERAttachmentProcessor.processorForType("s3").process(editingContext(),
>>>>> posterData, (String)dic.valueForKeyPath("filename"));
>>>>>
>>>>> Am I following you correctly in that I should use this S3 processor API ?
>>>>> I guess I'd have to write the NSData to a temp file?
>>>>>
>>>>> Or is there an API I'm confusing which would handle the NSData I get from
>>>>> the form?
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> On May 3, 2011, at 7:50 AM, Henrique Prange wrote:
>>>>>
>>>>>> Hi Jesse,
>>>>>>
>>>>>> ERAttachment is an abstract class. You can't instantiate it using the
>>>>>> createERAttachment method.
>>>>>>
>>>>>> You should create the attachment using the ERAttachmentProcessor instead:
>>>>>>
>>>>>> ERAttachment attachment =
>>>>>> ERAttachmentProcessor.processorForType(storageType).process(editingContext,
>>>>>> uploadedFile, originalFileName, mimeType, configurationName, ownerID);
>>>>>>
>>>>>> Cheers,
>>>>>>
>>>>>> Henrique
>>>>>>
>>>>>> On 02/05/2011, at 15:30, Jesse Tayler wrote:
>>>>>>
>>>>>>> I'm trying to create an ERAttachment via ERRest,
>>>>>>>
>>>>>>> I didn't see an ERRestRoute for uploading file attachments but maybe
>>>>>>> that's what I'm missing?
>>>>>>>
>>>>>>> I get a creation error while trying to create ERAttachment, and I
>>>>>>> realize I likely should be creating the ERAttachmentData object first,
>>>>>>> or more likely, find the ERRestRoute that's best for uploading a new
>>>>>>> file attachment?
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> NSData posterData =
>>>>>>> (NSData)dic.valueForKeyPath("poster");
>>>>>>> ERAttachment attachment =
>>>>>>> ERAttachment.createERAttachment(editingContext(), true, new
>>>>>>> NSTimestamp(), (String)dic.valueForKeyPath("mimetype"),
>>>>>>> (String)dic.valueForKeyPath("filename"), false, sizeInteger,
>>>>>>> webPathString));
>>>>>>> user().setPoster(attachment);
>>>>>>>
>>>>>>>
>>>>>>>
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>>>>>
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>>
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