Convert BlobContainer to a template

...where the template parameter is the type of a digest.

1 files changed, 105 insertions, 0 deletions

diff --git a/src/buildtool/execution_api/common/content_blob_container.hpp b/src/buildtool/execution_api/common/content_blob_container.hpp
new file mode 100644
index 00000000..fcd10f09
--- /dev/null
+++ b/src/buildtool/execution_api/common/content_blob_container.hpp
@@ -0,0 +1,105 @@
+// Copyright 2024 Huawei Cloud Computing Technology Co., Ltd.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#ifndef INCLUDED_SRC_BUILDTOOL_EXECUTION_API_COMMON_CONTENT_BLOB_CONTAINER_HPP
+#define INCLUDED_SRC_BUILDTOOL_EXECUTION_API_COMMON_CONTENT_BLOB_CONTAINER_HPP
+
+#include <cstddef>
+#include <string>
+#include <unordered_map>
+#include <utility>  //std::move
+#include <vector>
+
+#include "src/utils/cpp/transformed_range.hpp"
+
+template <typename TDigest>
+struct ContentBlob final {
+    ContentBlob(TDigest mydigest, std::string mydata, bool is_exec) noexcept
+        : digest{std::move(mydigest)},
+          data{std::move(mydata)},
+          is_exec{is_exec} {}
+
+    TDigest digest{};
+    std::string data{};
+    bool is_exec{};
+};
+
+template <typename TDigest>
+class ContentBlobContainer final {
+  public:
+    using DigestType = TDigest;
+    using BlobType = ContentBlob<TDigest>;
+
+    ContentBlobContainer() noexcept = default;
+    explicit ContentBlobContainer(std::vector<BlobType> blobs) {
+        blobs_.reserve(blobs.size());
+        for (auto& blob : blobs) {
+            this->Emplace(std::move(blob));
+        }
+    }
+
+    /// \brief Emplace new BazelBlob to container.
+    void Emplace(BlobType&& blob) {
+        DigestType digest = blob.digest;
+        blobs_.emplace(std::move(digest), std::move(blob));
+    }
+
+    /// \brief Clear all BazelBlobs from container.
+    void Clear() noexcept { return blobs_.clear(); }
+
+    /// \brief Number of BazelBlobs in container.
+    [[nodiscard]] auto Size() const noexcept -> std::size_t {
+        return blobs_.size();
+    }
+
+    /// \brief Is equivalent BazelBlob (with same Digest) in container.
+    /// \param[in] blob BazelBlob to search equivalent BazelBlob for
+    [[nodiscard]] auto Contains(BlobType const& blob) const noexcept -> bool {
+        return blobs_.contains(blob.digest);
+    }
+
+    /// \brief Obtain iterable list of Blobs from container.
+    [[nodiscard]] auto Blobs() const noexcept {
+        auto converter = [](auto const& p) -> BlobType const& {
+            return p.second;
+        };
+        return TransformedRange{
+            blobs_.cbegin(), blobs_.cend(), std::move(converter)};
+    }
+
+    /// \brief Obtain iterable list of Digests from container.
+    [[nodiscard]] auto Digests() const noexcept {
+        auto converter = [](auto const& p) -> DigestType const& {
+            return p.first;
+        };
+        return TransformedRange{
+            blobs_.cbegin(), blobs_.cend(), std::move(converter)};
+    }
+
+    /// \brief Obtain iterable list of BazelBlobs related to Digests.
+    /// \param[in] related Related Digests
+    [[nodiscard]] auto RelatedBlobs(
+        std::vector<DigestType> const& related) const noexcept {
+        auto converter = [this](auto const& digest) -> BlobType const& {
+            return blobs_.at(digest);
+        };
+        return TransformedRange{
+            related.begin(), related.end(), std::move(converter)};
+    };
+
+  private:
+    std::unordered_map<DigestType, BlobType> blobs_{};
+};
+
+#endif  // INCLUDED_SRC_BUILDTOOL_EXECUTION_API_COMMON_CONTENT_BLOB_CONTAINER_HPP