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/*
* Copyright (c) 2017-2019 Cisco and/or its affiliates.
* 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.
*/
#pragma once
#include <hicn/transport/core/manifest_format.h>
#include <hicn/transport/core/name.h>
#if defined(__APPLE__) || defined(__ANDROID__)
#include <json/json.h>
#else
#include <jsoncpp/json/json.h>
#endif /* __APPLE__ || __ANDROID__*/
#include <string>
namespace transport {
namespace core {
class JSONManifestEncoder;
class JSONManifestDecoder;
class Packet;
struct JSON {
using Encoder = JSONManifestEncoder;
using Decoder = JSONManifestDecoder;
using HashType = utils::CryptoHash;
using SuffixList = std::unordered_map<std::uint32_t, std::uint8_t*>;
};
template <typename T>
struct JSONKey;
template <>
struct JSONKey<ManifestVersion> {
static const constexpr char* key = "manifest_version";
};
template <>
struct JSONKey<HashAlgorithm> {
static const constexpr char* key = "hash_algorithm";
};
template <>
struct JSONKey<ManifestType> {
static const constexpr char* key = "manifest_type";
};
template <>
struct JSONKey<NextSegmentCalculationStrategy> {
static const constexpr char* key = "next_segment_strategy";
};
template <>
struct JSONKey<typename JSON::SuffixList> {
static const constexpr char* key = "suffix_hash_list";
};
template <>
struct JSONKey<core::Name> {
static const constexpr char* key = "base_name";
};
template <>
struct JSONKey<bool> {
static const constexpr char* final_manifest = "final_manifest";
};
class JSONManifestEncoder : public ManifestEncoder<JSONManifestEncoder> {
public:
JSONManifestEncoder(Packet& packet);
~JSONManifestEncoder() override;
JSONManifestEncoder& encodeImpl();
JSONManifestEncoder& clearImpl();
JSONManifestEncoder& setManifestTypeImpl(ManifestType manifest_type);
JSONManifestEncoder& setHashAlgorithmImpl(HashAlgorithm algorithm);
JSONManifestEncoder& setNextSegmentCalculationStrategyImpl(
NextSegmentCalculationStrategy strategy);
JSONManifestEncoder& setSuffixHashListImpl(
const typename JSON::SuffixList& name_hash_list);
JSONManifestEncoder& setBaseNameImpl(const core::Name& base_name);
JSONManifestEncoder& addSuffixAndHashImpl(uint32_t suffix,
const utils::CryptoHash& hash);
JSONManifestEncoder& setIsFinalManifestImpl(bool is_last);
JSONManifestEncoder& setVersionImpl(ManifestVersion version);
std::size_t estimateSerializedLengthImpl(std::size_t number_of_entries);
JSONManifestEncoder& updateImpl();
JSONManifestEncoder& setFinalBlockNumberImpl(
std::uint32_t final_block_number);
static std::size_t getManifestHeaderSizeImpl();
private:
Packet& packet_;
Json::Value root_;
};
class JSONManifestDecoder : public ManifestDecoder<JSONManifestDecoder> {
public:
JSONManifestDecoder(Packet& packet);
~JSONManifestDecoder() override;
void decodeImpl();
JSONManifestDecoder& clearImpl();
ManifestType getManifestTypeImpl() const;
HashAlgorithm getHashAlgorithmImpl() const;
uint32_t getFinalChunkImpl() const;
NextSegmentCalculationStrategy getNextSegmentCalculationStrategyImpl() const;
typename JSON::SuffixList getSuffixHashListImpl();
core::Name getBaseNameImpl() const;
bool getIsFinalManifestImpl() const;
std::size_t estimateSerializedLengthImpl(std::size_t number_of_entries) const;
ManifestVersion getVersionImpl() const;
uint32_t getFinalBlockNumberImpl() const;
private:
Packet& packet_;
Json::Value root_;
};
} // namespace core
} // namespace transport
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