milvus/cpp/src/cache/DataObj.h

// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The ASF licenses this file
// to you 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.

#pragma once

#include "src/wrapper/VecIndex.h"

#include <memory>

namespace zilliz {
namespace milvus {
namespace cache {

class DataObj {
 public:
    explicit DataObj(const engine::VecIndexPtr& index) : index_(index) {
    }

    DataObj(const engine::VecIndexPtr& index, int64_t size) : index_(index), size_(size) {
    }

    engine::VecIndexPtr
    data() {
        return index_;
    }

    const engine::VecIndexPtr&
    data() const {
        return index_;
    }

    int64_t
    size() const {
        if (index_ == nullptr) {
            return 0;
        }

        if (size_ > 0) {
            return size_;
        }

        return index_->Count() * index_->Dimension() * sizeof(float);
    }

 private:
    engine::VecIndexPtr index_ = nullptr;
    int64_t size_ = 0;
};

using DataObjPtr = std::shared_ptr<DataObj>;

}  // namespace cache
}  // namespace milvus
}  // namespace zilliz