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http://jira.amdatu.org/jira/browse/AMDATU-428?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=11694#comment-11694
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Marcel Offermans commented on AMDATU-428:
-----------------------------------------
I think we should create a new subproject for this. We should probably call
this subproject "Amdatu Storage" so we can add support for "table" stores in
this same subproject lateron. It does leave us with the question why we have a
specific subproject for Cassandra, but I would say let's worry about that
later. Maybe we should quickly run this past the board. I'll ping them.
> Blob Store support
> ------------------
>
> Key: AMDATU-428
> URL: http://jira.amdatu.org/jira/browse/AMDATU-428
> Project: Amdatu
> Issue Type: New Feature
> Reporter: Paul Bakker
> Attachments: TestContext.patch
>
>
> We need some way to work with Blob Store providers such as Amazon S3.
> I've implemented this and checked in to the sandbox:
> https://subversion.amdatu.org/svn/amdatu/sandbox/paulb
> The service is built on jclouds, so any Blob Store support by jclouds can be
> used. The service exposes the jclouds API directly. Jcloud already is an
> abstraction so it doesn't make sense to create another abstraction on top of
> this. If we would provide our own abstraction we would either copy the
> jclouds API or loose a lot of jcloud's functionality. If we need to support
> additional stores we can add them to jclouds.
> The jclouds API is exposed via an OSGI service (BlobStoreService). Jclouds
> has to be configured with a username/password etc. to work with a specific
> blob store. For this I have created a Managed Service Factory. As soon as the
> Factory finds configuration for a specific store it instantiates a service
> specifically for that store. To use this service you have to go through the
> following steps:
> -Add configuration (using Config Admin) for the provider containing:
> provider, identity and secret. The provider must be one of the providers
> supported by jclouds.
> -Lookup the service
> {code}
> dependencyManager.add(createComponent().setImplementation(BlobStoreClient.class)
>
> .add(createServiceDependency().setService(BlobStoreService.class,
> BlobStoreService.Providers.AWS_S3.getAsServiceFilter()).setRequired(true)));
> {code}
> From there you just use the jclouds API, for example:
> {code}
> BlobStoreContext blobStoreContext = blobStoreService.getContext();
> BlobStore blobStore = blobStoreContext.getBlobStore();
> PageSet<? extends StorageMetadata> amdatu = blobStore.list("amdatu");
> for (StorageMetadata storageMetadata : amdatu) {
> System.out.println(storageMetadata.getName());
> }
> {code}
> Let me know what you think!
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