Tellier Benoit created JAMES-2809:
-------------------------------------
Summary: DeletedMessageVault implementation of append & search
(full scan version) on top of BlobStore
Key: JAMES-2809
URL: https://issues.apache.org/jira/browse/JAMES-2809
Project: James Server
Issue Type: Sub-task
Components: deletedMessageVault
Reporter: Tellier Benoit
You will write a BlobStore based DeletedMessageVault implementation where it
has:
- a dedicated component(DeletedMessageMetadataVault) to store metadata in
order to have reasonable searching performance (JAMES-2807)
- the capability of choosing bucket in BlobStore as the proposal JAMES-2806
described
### Append
you also have to implement a related method loadMimeMessage()
{code:java}
class BlobStoreDeletedMessageVault implements DeletedMessageVault {
private final DeletedMessageMetadataVault metadataVault;
private final BlobStore blobStore;
Mono<Void> append(User user, DeletedMessage message, InputStream
mimeMessage) {
BlobId deletedMessageFileName = calculateFileName(message);
blobStore
.store(mimeMessage, deletedMessageFileName,
calculateCurrentBucket());
metadataVault.store(calculateCurrentBucket(), message);
}
Mono<InputStream> loadMimeMessage(User user, MessageId messageId) {
....
}
}
{code}
Pattern for BucketName: `deletedMessages-2019-06-01` where 2019 is the year and
06 the month. 01 is used to later allow smaller bucket definition.
#Searching ontop of DeletedMessageMetadataVault JAMES-2807
- retrieve all available buckets from DeletedMessageMetadataVault
- for each bucket, use retrieve all deleted message metadata of corresponding
user
- filter records match with query criteria
{code:java}
class BlobStoreDeletedMessageVault implements DeletedMessageVault {
private DeletedMessageMetadataVault metadataVault;
Flux<DeletedMessage> search(User user, Query query) {
return metadataVault.listContainers()
.flatMap(containerName -> metadataVault.listMessages(containerName,
user))
.filter(deletedMessage -> matches(deletedMessage, query));
}
}
{code}
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