> + @Transactional
> + public boolean blobExists(String containerName, String key) {
> + return findBlobById(containerName, key) != null;
> + }
> +
> + @Transactional(rollbackOn = IOException.class)
> + public BlobEntity createOrModifyBlob(String containerName, Blob blob,
> BlobAccess blobAccess) throws IOException {
> + String key = blob.getMetadata().getName();
> + Date creationDate = null;
> + BlobEntity oldBlobEntity = findBlobById(containerName, key);
> + if (oldBlobEntity != null) {
> + creationDate = oldBlobEntity.getCreationDate();
> + deleteBlob(containerName, key);
> + }
> + BlobEntity blobEntity = blobToBlobEntity.apply(blob);
> +
> blobEntity.getPayload().setChunks(storeData(blob.getPayload().openStream()));
Do you need to close the `InputStream`? Shouldn't you also calculate the hash
while copying instead of re-reading from the database below?
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