carloea2 commented on code in PR #4136:
URL: https://github.com/apache/texera/pull/4136#discussion_r2656970453
##########
file-service/src/main/scala/org/apache/texera/service/resource/DatasetResource.scala:
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@@ -1372,4 +1405,378 @@ class DatasetResource {
Right(response)
}
}
+
+ // === Multipart helpers ===
+
+ private def getDatasetBy(ownerEmail: String, datasetName: String) = {
+ val dataset = context
+ .select(DATASET.fields: _*)
+ .from(DATASET)
+ .leftJoin(USER)
+ .on(USER.UID.eq(DATASET.OWNER_UID))
+ .where(USER.EMAIL.eq(ownerEmail))
+ .and(DATASET.NAME.eq(datasetName))
+ .fetchOneInto(classOf[Dataset])
+ if (dataset == null) {
+ throw new BadRequestException("Dataset not found")
+ }
+ dataset
+ }
+
+ private def validateFilePathOrThrow(filePath: String): String = {
+ val p = Option(filePath).getOrElse("")
+ val s = p.replace("\\", "/")
+ if (
+ p.isEmpty ||
+ s.startsWith("/") ||
+ s.split("/").exists(seg => seg == "." || seg == "..") ||
+ s.exists(ch => ch == 0.toChar || ch < 0x20.toChar || ch == 0x7f.toChar)
+ ) throw new BadRequestException("Invalid filePath")
+ p
+ }
+
+ private def initMultipartUpload(
+ did: Integer,
+ encodedFilePath: String,
+ numParts: Optional[Integer],
+ uid: Integer
+ ): Response = {
+
+ withTransaction(context) { ctx =>
+ if (!userHasWriteAccess(ctx, did, uid)) {
+ throw new ForbiddenException(ERR_USER_HAS_NO_ACCESS_TO_DATASET_MESSAGE)
+ }
+
+ val dataset = getDatasetByID(ctx, did)
+ val repositoryName = dataset.getRepositoryName
+
+ val filePath =
+ validateFilePathOrThrow(URLDecoder.decode(encodedFilePath,
StandardCharsets.UTF_8.name()))
+
+ val numPartsValue = numParts.toScala.getOrElse {
+ throw new BadRequestException("numParts is required for
initialization")
+ }
+ if (numPartsValue < 1 || numPartsValue >
MAXIMUM_NUM_OF_MULTIPART_S3_PARTS) {
+ throw new BadRequestException(
+ "numParts must be between 1 and " + MAXIMUM_NUM_OF_MULTIPART_S3_PARTS
+ )
+ }
+
+ // Reject if a session already exists
+ val exists = ctx.fetchExists(
+ ctx
+ .selectOne()
+ .from(DATASET_UPLOAD_SESSION)
+ .where(
+ DATASET_UPLOAD_SESSION.UID
+ .eq(uid)
+ .and(DATASET_UPLOAD_SESSION.DID.eq(did))
+ .and(DATASET_UPLOAD_SESSION.FILE_PATH.eq(filePath))
+ )
+ )
+ if (exists) {
+ throw new WebApplicationException(
+ "Upload already in progress for this filePath",
+ Response.Status.CONFLICT
+ )
+ }
+
+ val presign = LakeFSStorageClient.initiatePresignedMultipartUploads(
+ repositoryName,
+ filePath,
+ numPartsValue
+ )
+
+ val uploadIdStr = presign.getUploadId
+ val physicalAddr = presign.getPhysicalAddress
+
+ // If anything fails after this point, abort LakeFS multipart
+ try {
+ val rowsInserted = ctx
+ .insertInto(DATASET_UPLOAD_SESSION)
+ .set(DATASET_UPLOAD_SESSION.FILE_PATH, filePath)
+ .set(DATASET_UPLOAD_SESSION.DID, did)
+ .set(DATASET_UPLOAD_SESSION.UID, uid)
+ .set(DATASET_UPLOAD_SESSION.UPLOAD_ID, uploadIdStr)
+ .set(DATASET_UPLOAD_SESSION.PHYSICAL_ADDRESS, physicalAddr)
+ .set(DATASET_UPLOAD_SESSION.NUM_PARTS_REQUESTED, numPartsValue)
+ .onDuplicateKeyIgnore()
+ .execute()
+
+ if (rowsInserted != 1) {
+ LakeFSStorageClient.abortPresignedMultipartUploads(
+ repositoryName,
+ filePath,
+ uploadIdStr,
+ physicalAddr
+ )
+ throw new WebApplicationException(
+ "Upload already in progress for this filePath",
+ Response.Status.CONFLICT
+ )
+ }
+
+ // Pre-create part rows 1..numPartsValue with empty ETag.
+ // This makes per-part locking cheap and deterministic.
+
+ val gs = DSL.generateSeries(1, numPartsValue).asTable("gs", "pn")
+ val PN = gs.field("pn", classOf[Integer])
Review Comment:
Fixed it. Thanks.
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