Implement bulk delete

src/RustyObjectStore.jl

@@ -596,6 +596,13 @@ struct DeleteException <: RequestException
 
     DeleteException(msg) = new(msg, rust_message_to_reason(msg))
 end
+# Used for generic exceptions that are not specific to one of the to be deleted paths
+struct BulkDeleteException <: RequestException
+    msg::String
+    reason::ErrorReason
+
+    BulkDeleteException(msg) = new(msg, rust_message_to_reason(msg))
+end
 struct ListException <: RequestException
     msg::String
     reason::ErrorReason
@@ -905,6 +912,104 @@ function delete_object(path::String, conf::AbstractConfig)
     end
 end
 
+# =========================================================================================
+# Bulk Delete
+struct BulkFailedEntryFFI
+    path::Cstring
+    error_message::Cstring
+end
+
+struct BulkFailedEntry
+    path::String
+    error_message::String
+end
+
+function convert_bulk_failed_entry(entry::BulkFailedEntryFFI)
+    return BulkFailedEntry(
+        unsafe_string(entry.path),
+        unsafe_string(entry.error_message),
+    )
+end
+
+mutable struct BulkResponseFFI
+    result::Cint
+    failed_entries::Ptr{BulkFailedEntryFFI}
+    failed_count::Culonglong
+    error_message::Ptr{Cchar}
+    context::Ptr{Cvoid}
+
+    BulkResponseFFI() = new(-1, C_NULL, 0, C_NULL, C_NULL)
+end
+
+"""
+    bulk_delete_objects(path, conf)
+
+Send a delete request to the object store.
+
+# Arguments
+- `path::String`: The location of the object to delete.
+- `conf::AbstractConfig`: The configuration to use for the request.
+  It includes credentials and other client options.
+
+# Throws
+- `DeleteException`: If the request fails for any reason. Note that S3 will treat a delete request
+  to a non-existing object as a success, while Azure Blob will treat it as a 404 error.
+"""
+function bulk_delete_objects(paths::Vector{String}, conf::AbstractConfig)
+    response = BulkResponseFFI()
+    ct = current_task()
+    event = Base.Event()
+    handle = pointer_from_objref(event)
+    config = into_config(conf)
+    while true
+        preserve_task(ct)
+        # Convert Julia strings to Cstrings
+        c_paths = [Base.cconvert(Cstring, path) for path in paths]
+        # Create an array of pointers to the Cstrings
+        paths_array = [pointer(c_path) for c_path in c_paths]
+        result = GC.@preserve paths c_paths paths_array config response event try
+            # Pass a pointer to the array of pointers to the Cstrings
+            c_paths_ptr = pointer(paths_array)
+            result = @ccall rust_lib.bulk_delete(
+                c_paths_ptr::Ptr{Ptr{Cchar}},
+                length(paths)::Cuint,
+                config::Ref{Config},
+                response::Ref{BulkResponseFFI},
+                handle::Ptr{Cvoid}
+            )::Cint
+
+            wait_or_cancel(event, response)
+
+            result
+        finally
+            unpreserve_task(ct)
+        end
+
+        if result == 2
+            # backoff
+            sleep(0.01)
+            continue
+        end
+
+        @throw_on_error(response, "bulk_delete", BulkDeleteException)
+
+        entries = if response.failed_count > 0
+            raw_entries = unsafe_wrap(Array, response.failed_entries, response.failed_count)
+            vector = map(convert_bulk_failed_entry, raw_entries)
+            @ccall rust_lib.destroy_bulk_failed_entries(
+                response.failed_entries::Ptr{BulkFailedEntryFFI},
+                response.failed_count::Culonglong
+            )::Cint
+            vector
+        else
+            Vector{BulkFailedEntry}[]
+        end
+
+        return entries
+    end
+end
+# =========================================================================================
+
 mutable struct ReadResponseFFI
     result::Cint
     length::Culonglong

test/azure_blobs_exception_tests.jl

@@ -1,7 +1,9 @@
 @testitem "Basic BlobStorage exceptions" setup=[InitializeObjectStore] begin
     using CloudBase.CloudTest: Azurite
-    import CloudBase
     using RustyObjectStore: RustyObjectStore, get_object!, put_object, ClientOptions, AzureConfig, AWSConfig
+    import CloudBase
+    import HTTP
+    import Sockets
 
     # For interactive testing, use Azurite.run() instead of Azurite.with()
     # conf, p = Azurite.run(; debug=true, public=false); atexit(() -> kill(p))
@@ -173,6 +175,111 @@
                 @test occursin("The specified resource does not exist.", e.msg)
             end
         end
+
+        @testset "bulk_delete_objects exceptions" begin
+            # We have to mock to simulate partial failures for some of the
+            # requested deletes
+crafted_res =
+"""--batchresponse_66925647-d0cb-4109-b6d3-28efe3e1e5ed\r
+Content-Type: application/http\r
+Content-ID: 0\r
+\r
+HTTP/1.1 202 Accepted\r
+x-ms-delete-type-permanent: true\r
+x-ms-request-id: 778fdc83-801e-0000-62ff-0334671e284f\r
+x-ms-version: 2018-11-09\r
+\r
+--batchresponse_66925647-d0cb-4109-b6d3-28efe3e1e5ed\r
+Content-Type: application/http\r
+Content-ID: 1\r
+\r
+HTTP/1.1 403 Forbidden\r
+Content-Length: 223\r
+Content-Type: application/xml\r
+Server: Microsoft-HTTPAPI/2.0\r
+x-ms-request-id: 12345678-90ab-cdef-1234-567890abcdef\r
+x-ms-version: 2021-12-02\r
+Date: Wed, 07 Feb 2025 12:34:56 GMT\r
+\r
+<?xml version="1.0" encoding="utf-8"?>\r
+<Error>\r
+    <Code>AuthorizationPermissionMismatch</Code>\r
+    <Message>\r
+        This request is not authorized to perform this operation using this permission.\r
+        RequestId: 12345678-90ab-cdef-1234-567890abcdef\r
+        Time: 2025-02-07T12:34:56.000Z\r
+    </Message>\r
+</Error>\r
+Time:2018-06-14T16:46:54.6040685Z</Message></Error>\r
+\r
+--batchresponse_66925647-d0cb-4109-b6d3-28efe3e1e5ed\r
+Content-Type: application/http\r
+Content-ID: 2\r
+\r
+HTTP/1.1 404 The specified blob does not exist.\r
+x-ms-error-code: BlobNotFound\r
+x-ms-request-id: 778fdc83-801e-0000-62ff-0334671e2852\r
+x-ms-version: 2018-11-09\r
+Content-Length: 216\r
+Content-Type: application/xml\r
+\r
+<?xml version=\"1.0\" encoding=\"utf-8\"?>\r
+<Error><Code>BlobNotFound</Code><Message>The specified blob does not exist.\r
+RequestId:778fdc83-801e-0000-62ff-0334671e2852\r
+Time:2018-06-14T16:46:54.6040685Z</Message></Error>\r
+--batchresponse_66925647-d0cb-4109-b6d3-28efe3e1e5ed--\r
+"""
+    headers = Ref([
+            "Transfer-Encoding" => "chunked",
+            "Content-Type" => "multipart/mixed; boundary=batchresponse_66925647-d0cb-4109-b6d3-28efe3e1e5ed",
+            "x-ms-request-id" => "778fdc83-801e-0000-62ff-033467000000",
+            "x-ms-version" => "2018-11-09",
+    ])
+            (port, tcp_server) = Sockets.listenany(8081)
+            http_server = HTTP.serve!(tcp_server) do request::HTTP.Request
+                return HTTP.Response(
+                    200,
+                    headers[],
+                    crafted_res,
+                )
+            end
+
+            mock_baseurl = "http://127.0.0.1:$port/account/container/"
+            mock_config = AzureConfig(;
+                storage_account_name=_credentials.auth.account,
+                container_name=_container.name,
+                storage_account_key=_credentials.auth.key,
+                host=mock_baseurl
+            )
+
+            failed_entries = RustyObjectStore.bulk_delete_objects(
+                ["a", "b", "c"],
+                mock_config,
+            )
+            @test length(failed_entries) == 1
+            @test occursin("Forbidden (code: 403)", first(failed_entries).error_message)
+
+            # Corrupt response headers to generate a generic exception independent of the paths
+            # we asked to delete
+            headers[] = []
+            try
+                failed_entries = RustyObjectStore.bulk_delete_objects(
+                    ["a", "b", "c"],
+                    mock_config,
+                )
+                # should throw because the response is invalid as it misses the
+                # Content-Type header
+                @test false
+            catch e
+                @test e isa RustyObjectStore.BulkDeleteException
+                @test occursin("Got invalid bulk delete response", e.msg)
+                @test e.reason == RustyObjectStore.UnknownError()
+            finally
+                close(http_server)
+            end
+            wait(http_server)
+            # Test
+        end
     end # Azurite.with
     # Azurite is not running at this point
     @testset "Connection error" begin

test/basic_unified_tests.jl

@@ -1,6 +1,7 @@
 @testsetup module ReadWriteCases
 using RustyObjectStore: get_object!, put_object, get_object_stream, put_object_stream,
-    AbstractConfig, delete_object, list_objects, list_objects_stream, next_chunk!, finish!
+    AbstractConfig, bulk_delete_objects, delete_object,
+    list_objects, list_objects_stream, next_chunk!, finish!
 using CodecZlib
 using RustyObjectStore
 
@@ -475,6 +476,32 @@ function run_read_write_test_cases(read_config::AbstractConfig, write_config::Ab
         end
     end
 
+    @testset "bulk_delete_objects" begin
+        input = "1,2,3,4,5,6,7,8,9,1\n" ^ 5
+        buffer = Vector{UInt8}(undef, 100)
+        @assert sizeof(input) == 100
+        @assert sizeof(buffer) == sizeof(input)
+
+        object_names = ["test100B.csv", "test200B.csv"]
+        for name in object_names
+            nbytes_written = put_object(codeunits(input), name, write_config)
+            @test nbytes_written == 100
+        end
+
+        failed_entries = bulk_delete_objects(object_names, write_config)
+        @test isempty(failed_entries)
+
+        for name in object_names
+            try
+                nbytes_read = get_object!(buffer, name, read_config)
+                @test false # should throw
+            catch e
+                @test e isa RustyObjectStore.GetException
+                @test occursin("not found", e.msg)
+            end
+        end
+    end
+
     # Large files should use multipart upload / download requests
     @testset "20MB file, 20MB buffer" begin
         input = "1,2,3,4,5,6,7,8,9,1\n" ^ 1_000_000
@@ -676,7 +703,6 @@ Azurite.with(; debug=true, public=false) do conf
 
     run_sanity_test_cases(config_padded)
 end # Azurite.with
-
 end # @testitem
 
 # NOTE: PUT on azure always requires credentials, while GET on public containers doesn't