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astra/src/main/java/com/slack/astra/blobfs/ChunkStore.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,100 @@ | ||
| package com.slack.astra.blobfs; | ||
|
|
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| import static software.amazon.awssdk.services.s3.model.ListObjectsV2Request.builder; | ||
|
|
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| import java.nio.file.Path; | ||
| import java.util.List; | ||
| import java.util.concurrent.ExecutionException; | ||
| import java.util.concurrent.atomic.AtomicBoolean; | ||
| import software.amazon.awssdk.services.s3.S3AsyncClient; | ||
| import software.amazon.awssdk.services.s3.model.Delete; | ||
| import software.amazon.awssdk.services.s3.model.DeleteObjectsRequest; | ||
| import software.amazon.awssdk.services.s3.model.ListObjectsV2Request; | ||
| import software.amazon.awssdk.services.s3.model.ObjectIdentifier; | ||
| import software.amazon.awssdk.services.s3.paginators.ListObjectsV2Publisher; | ||
| import software.amazon.awssdk.transfer.s3.S3TransferManager; | ||
| import software.amazon.awssdk.transfer.s3.model.DownloadDirectoryRequest; | ||
| import software.amazon.awssdk.transfer.s3.model.UploadDirectoryRequest; | ||
|
|
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| public class ChunkStore { | ||
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| private final String bucketName; | ||
| private final S3AsyncClient s3AsyncClient; | ||
| private final S3TransferManager transferManager; | ||
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| public ChunkStore(S3AsyncClient s3AsyncClient, String bucketName) { | ||
| this.bucketName = bucketName; | ||
| this.s3AsyncClient = s3AsyncClient; | ||
| this.transferManager = S3TransferManager.builder().s3Client(s3AsyncClient).build(); | ||
| } | ||
|
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| public void upload(String chunkId, Path directoryToUpload) { | ||
| try { | ||
| transferManager | ||
| .uploadDirectory( | ||
| UploadDirectoryRequest.builder() | ||
| .source(directoryToUpload) | ||
| .s3Prefix(chunkId) | ||
| .bucket(bucketName) | ||
| .build()) | ||
| .completionFuture() | ||
| .get(); | ||
| } catch (ExecutionException | InterruptedException e) { | ||
| throw new RuntimeException(e); | ||
| } | ||
| } | ||
|
|
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| // todo - make destination optional | ||
| public Path download(String chunkId, Path destination) { | ||
| try { | ||
| transferManager | ||
| .downloadDirectory( | ||
| DownloadDirectoryRequest.builder() | ||
| .bucket(bucketName) | ||
| .destination(destination) | ||
| .listObjectsV2RequestTransformer(l -> l.prefix(chunkId)) | ||
| .build()) | ||
| .completionFuture() | ||
| .get(); | ||
| return destination; | ||
| } catch (ExecutionException | InterruptedException e) { | ||
| throw new RuntimeException(e); | ||
| } | ||
| } | ||
|
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| public boolean delete(String chunkId) { | ||
| ListObjectsV2Request listRequest = builder().bucket(bucketName).prefix(chunkId).build(); | ||
| ListObjectsV2Publisher asyncPaginatedListResponse = | ||
| s3AsyncClient.listObjectsV2Paginator(listRequest); | ||
|
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| AtomicBoolean deleted = new AtomicBoolean(false); | ||
| try { | ||
| asyncPaginatedListResponse | ||
| .subscribe( | ||
| listResponse -> { | ||
| List<ObjectIdentifier> objects = | ||
| listResponse.contents().stream() | ||
| .map(s3Object -> ObjectIdentifier.builder().key(s3Object.key()).build()) | ||
| .toList(); | ||
| if (objects.isEmpty()) { | ||
| return; | ||
| } | ||
| DeleteObjectsRequest deleteRequest = | ||
| DeleteObjectsRequest.builder() | ||
| .bucket(bucketName) | ||
| .delete(Delete.builder().objects(objects).build()) | ||
| .build(); | ||
| try { | ||
| s3AsyncClient.deleteObjects(deleteRequest).get(); | ||
| deleted.set(true); | ||
| } catch (InterruptedException | ExecutionException e) { | ||
| throw new RuntimeException(e); | ||
| } | ||
| }) | ||
| .get(); | ||
| return deleted.get(); | ||
| } catch (InterruptedException | ExecutionException e) { | ||
| throw new RuntimeException(e); | ||
| } | ||
| } | ||
| } |
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