//
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// Copyright (C) 2015 The Android Open Source Project
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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#ifndef UPDATE_ENGINE_PAYLOAD_GENERATOR_OPERATIONS_GENERATOR_H_
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#define UPDATE_ENGINE_PAYLOAD_GENERATOR_OPERATIONS_GENERATOR_H_
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#include <vector>
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#include <base/macros.h>
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#include "update_engine/payload_generator/annotated_operation.h"
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#include "update_engine/payload_generator/blob_file_writer.h"
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#include "update_engine/payload_generator/payload_generation_config.h"
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namespace chromeos_update_engine {
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class OperationsGenerator {
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public:
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virtual ~OperationsGenerator() = default;
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// This method generates a list of operations to update from the partition
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// |old_part| to |new_part| and stores the generated operations in |aops|.
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// These operations are generated based on the given |config|.
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// The operations should be applied in the order specified in the list, and
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// they respect the payload version and type (delta or full) specified in
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// |config|.
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// The operations generated will refer to offsets in the file |blob_file|,
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// where this function stores the output, but not necessarily in the same
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// order as they appear in the |aops|.
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virtual bool GenerateOperations(const PayloadGenerationConfig& config,
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const PartitionConfig& old_part,
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const PartitionConfig& new_part,
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BlobFileWriter* blob_file,
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std::vector<AnnotatedOperation>* aops) = 0;
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protected:
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OperationsGenerator() = default;
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private:
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DISALLOW_COPY_AND_ASSIGN(OperationsGenerator);
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};
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} // namespace chromeos_update_engine
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#endif // UPDATE_ENGINE_PAYLOAD_GENERATOR_OPERATIONS_GENERATOR_H_
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