I'm trying to setup a Google Cloud Storage file upload by following the sample from google with the GcsExampleServlet.java . I've complete all the step but when I deploy the project to aggengine and I try to upload a simple text in GCS , it fail with this log :
com.google.appengine.tools.cloudstorage.NonRetriableException: com.google.appengine.tools.cloudstorage.NonRetriableException: com.google.appengine.api.appidentity.AppIdentityServiceFailureException:
The AppIdentity service threw an unexpected error. Details:
at com.google.appengine.tools.cloudstorage.RetryHelper.doRetry(RetryHelper.java:120)
at com.google.appengine.tools.cloudstorage.RetryHelper.runWithRetries(RetryHelper.java:166)
at com.google.appengine.tools.cloudstorage.RetryHelper.runWithRetries(RetryHelper.java:156)
at com.google.appengine.tools.cloudstorage.GcsServiceImpl.createOrReplace(GcsServiceImpl.java:70)
at com.appart.storage.server.GcsExampleServlet.doPost(GcsExampleServlet.java:88)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1166)
(...)
Still, there is nothing complicate in the code... In web.xml I've configured the servlet :
<servlet>
<servlet-name>GcsExample</servlet-name>
<servlet-class>
com.example.server.GcsExampleServlet
</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>GcsExample</servlet-name>
<url-pattern>/gcs/*</url-pattern>
</servlet-mapping>
Here is the servlet GcsExampleServlet.java ( exactly the same as in google sample ) :
@SuppressWarnings("serial")
public class GcsExampleServlet extends HttpServlet {
private final GcsService gcsService = GcsServiceFactory.createGcsService(new RetryParams.Builder()
.initialRetryDelayMillis(10)
.retryMaxAttempts(10)
.totalRetryPeriodMillis(15000)
.build());
//...
@Override
public void doPost(HttpServletRequest req, HttpServletResponse resp) throws IOException
{
GcsOutputChannel outputChannel =
gcsService.createOrReplace(getFileName(req), GcsFileOptions.getDefaultInstance());
copy(req.getInputStream(), Channels.newOutputStream(outputChannel));
}
private void copy(InputStream input, OutputStream output) throws IOException {
try {
byte[] buffer = new byte[BUFFER_SIZE];
int bytesRead = input.read(buffer);
while (bytesRead != -1) {
output.write(buffer, 0, bytesRead);
bytesRead = input.read(buffer);
}
} finally {
input.close();
output.close();
}
}
}
Here is my upload.html file :
<form action="/upload.html" enctype="text/plain" method="get" name="putFile" id="putFile">
<div>
Bucket: <input type="text" name="bucket" />
File Name: <input type="text" name="fileName" />
<br /> File Contents: <br />
<textarea name="content" id="content" rows="3" cols="60"></textarea>
<br />
<input type="submit" onclick='uploadFile(this)' value="Upload Content" />
</div>
</form>
<script>
function uploadFile() {
var bucket = document.forms["putFile"]["bucket"].value;
var filename = document.forms["putFile"]["fileName"].value;
if (bucket == null || bucket == "" || filename == null || filename == "") {
alert("Both Bucket and FileName are required");
return false;
} else {
var postData = document.forms["putFile"]["content"].value;
document.getElementById("content").value = null;
var request = new XMLHttpRequest();
request.open("POST", "/gcs/" + bucket + "/" + filename, false);
request.setRequestHeader("Content-Type", "text/plain;charset=UTF-8");
request.send(postData);
}
}
</script>
I've enabled Billing, created a bucket but the AppIdentity error still appear. I've no Oauth, the cloud storage API is enabled, the appengine account used to upload has write access to the bucket. I even tried a
gsutil acl ch -u [email protected]:WRITE gs://ctrlxbucket
To be sure that the user has write access to my bucket.
Please help me to figure out what this error mean, I'm stick here since days :(
Thanks a lot
PS : If you just have some working sample of GCS ( not the google one ), I'll be happy too since there is not a lot of stuff around that topic.
