Hi Everyone,
I was wondering if anything had changed recently in relation to uploading
blobs to appengine from external applications? What used to work perfectly
only 3 months ago is now hanging when doing a http post to upload the blob.
The code (see below) which was working fine previously consists in fetching
a pull queue from AppEngine (using the REST API), doing some stuff with
this task received and then uploading back the result as a Blob on
AppEngine. The url to upload the blob to is created by appengine using
blobstoreService.createUploadUrl("/upload");
and is of the form:
http://myapp.appspot.com/_ah/upload/AMmfu6aAHnkuS4ngyRJDn7urFFZeBxb_-3P-r7RY9udMvRjLWkEZNJMgUX1DFczNVi-NhIxcFat2AEPXs2IRJ0AOmznSMgcrCKmL7mGAmS7nqtr-UyYFkglD88BwCfzIui9M2yez7DSQ/ALBNUaYAAAAAUGRlEwpeGEc5ozp8Z8sDO33qgCi2AiIE/<http://7.linguabox0412.appspot.com/_ah/upload/AMmfu6aAHnkuS4ngyRJDn7urFFZeBxb_-3P-r7RY9udMvRjLWkEZNJMgUX1DFczNVi-NhIxcFat2AEPXs2IRJ0AOmznSMgcrCKmL7mGAmS7nqtr-UyYFkglD88BwCfzIui9M2yez7DSQ/ALBNUaYAAAAAUGRlEwpeGEc5ozp8Z8sDO33qgCi2AiIE/>
I had a look at the logs on AppEngine and it seems like the servlet in
charge of /upload isn't being triggered.
I'm honestly out of ideas at this stage, any help would be greatly
appreciated ! :-)
Cheers,
Killian
//Code
public boolean uploadAsBlob(String dataToWrite, String uploadURL) {
try {
BufferedWriter bufferedWriter = new BufferedWriter(new FileWriter(
tempFileLocation));
bufferedWriter.write(dataToWrite);
bufferedWriter.newLine();
bufferedWriter.close();
MultipartEntity entity = new MultipartEntity();
entity.addPart(blobFileName, new FileBody(new File(
tempFileLocation)));
HttpPost method = new HttpPost(uploadURL);
method.setEntity(entity);
final HttpParams httpParams = new BasicHttpParams();
HttpConnectionParams.setConnectionTimeout(httpParams, 10000);
DefaultHttpClient httpclient = new DefaultHttpClient(httpParams);
//It hangs at the following line!
HttpResponse response = httpclient.execute(method);
if (response.getStatusLine().getStatusCode() == 200) {
logger.info("Uploaded blob to url: " + uploadURL);
return true;
} else {
logger.warning("Couldn't upload blob to url: " + uploadURL);
}
} catch (Exception e) {
logger.warning("Exception " + e.getMessage() + " occured while uploading
blob to url:" + uploadURL);
logger.warning("Couldn't upload blob to url: " + uploadURL);
}
return false;
}
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