Swift-Keystone multipart objects upload example

[dominik]

Hi,
Is there any working example where large objects are uploaded into Swift secured with Keystone ?
I can see that there is a AsyncBlobStore object but I can't find any example how to create it from context ?

I was trying :

BlobStoreContext context = ContextBuilder.newBuilder("swift-keystone").overrides(properties).build(BlobStoreContext.class);
///store = context.getBlobStore();
asyncStore = context.getAsyncBlobStore();

but it doesn't work, when I execute putBlob(container, blob, multipart()) method I get error:

backend type: org.jclouds.rest.RestContext<org.jclouds.openstack.swift.SwiftKeystoneClient, org.jclouds.openstack.swift.SwiftKeystoneAsyncClient> not assignable from org.jclouds.rest.RestContext<org.jclouds.openstack.swift.SwiftClient, org.jclouds.openstack.swift.SwiftAsyncClient>

Thanks,
Dominik T.

[Everett Toews]

Hi Dominik,

It's an issue with setting up your Context. Have a look at the init() method in the List Containers example in the pull request below. It will show you how to setup the Context properly.

https://github.com/rackspace/jclouds.github.com/blob/70251a300dd4326a19686fdb7b2bddbf16aab1ac/documentation/quickstart/openstack.markdown

Sorry having to link you to a PR. Eventually this example will be available at

http://www.jclouds.org/documentation/quickstart/openstack/

HTH,

Everett

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[dominik]

Hi,
Thank you for the answer! I've created Context in that way but when I try tu run:

Blob blob = storage.blobBuilder(objectName).payload(file)
            .contentType(MediaType.APPLICATION_OCTET_STREAM)
            .contentDisposition(objectName).build();
         
storage.putBlob(containerName, blob, multipart());

I'm having error:

java.lang.IllegalArgumentException: backend type: org.jclouds.rest.RestContext<org.jclouds.openstack.swift.SwiftKeystoneClient, org.jclouds.openstack.swift.SwiftKeystoneAsyncClient> not assignable from org.jclouds.rest.RestContext<org.jclouds.openstack.swift.SwiftClient, org.jclouds.openstack.swift.SwiftAsyncClient>
    at com.google.common.base.Preconditions.checkArgument(Preconditions.java:119)
    at org.jclouds.internal.BaseView.unwrap(BaseView.java:52)
    at org.jclouds.openstack.swift.blobstore.strategy.internal.SequentialMultipartUploadStrategy.execute(SequentialMultipartUploadStrategy.java:51)
    at org.jclouds.openstack.swift.blobstore.SwiftBlobStore.putBlob(SwiftBlobStore.java:214)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at com.google.inject.internal.DelegatingInvocationHandler.invoke(DelegatingInvocationHandler.java:37)
    at $Proxy77.putBlob(Unknown Source)

Thanks,
Dominik

[Everett Toews]

Hi Dominik,

Can you provide a gist [1] or pastie [2] with your code in it?

I'd like to see exactly how you're creating your BlobStoreContext and RestContext.

Thanks,

Everett

[1] https://gist.github.com/

[2] http://pastie.org/

[Everett Toews]

Oh...and what version of jclouds are you using?

[dominik]

Hi,
My code is on http://pastie.org/6234793
I'm using jclouds 1.5.4

Thanks,
Dominik

[Everett Toews]

Hi Dominik,

I'm at a bit of a loss here. I tried your example *exactly* as you have it in the pastie, naturally with different values for the SWIFT_* variables and the File, and it worked just fine for me using 1.5.4.

I grabbed jclouds 1.5.4 using ant and this build.xml file. You can see my directory listing too.

https://gist.github.com/everett-toews/4999810

When I was troubleshooting your problem, I actually hit a issue in the cloudfiles API similar to the error you're getting. I fixed the issue there and made the same fix in the swift-keystone API just to be consistent across the two. Those fixes will be in jclouds 1.5.8 which should be released early next week. What you're doing in 1.5.4 seems like it should work but maybe 1.5.8 will work for you too. 

If you'd like to do some early testing, you can try out the snapshot builds. See the Using the jclouds Snapshot Builds section in

http://www.jclouds.org/documentation/userguide/installation-guide/

Hope that works out for you.

[dominik]

Hi,
Hmm, I've tested the code with jclouds 1.5.4 as you suggested on two machines, one hosted by Linux, one by MacOs and I've the same error. I've also used a snapshot build 1.5.7 and the error still appears.
I'm using Java 1.6.0_21 and 1.6.0_35 on second machine. Code http://pastie.org/6234793

Thanks,
Dominik