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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/content_object.h>
#include <hicn/transport/core/name.h>
#include <core/manifest_format.h>
#include <set>
namespace transport {
namespace core {
using typename core::Name;
using typename core::Packet;
using typename core::PayloadType;
template <typename Base, typename FormatTraits, typename ManifestImpl>
class Manifest : public Base {
static_assert(std::is_base_of<Packet, Base>::value,
"Base must inherit from packet!");
public:
using Encoder = typename FormatTraits::Encoder;
using Decoder = typename FormatTraits::Decoder;
Manifest(std::size_t signature_size = 0)
: Base(HF_INET6_TCP_AH),
encoder_(*this, signature_size),
decoder_(*this) {
Base::setPayloadType(PayloadType::MANIFEST);
}
Manifest(const core::Name &name, std::size_t signature_size = 0)
: Base(name, HF_INET6_TCP_AH),
encoder_(*this, signature_size),
decoder_(*this) {
Base::setPayloadType(PayloadType::MANIFEST);
}
template <typename T>
Manifest(T &&base)
: Base(std::forward<T &&>(base)), encoder_(*this), decoder_(*this) {
Base::setPayloadType(PayloadType::MANIFEST);
}
virtual ~Manifest() = default;
std::size_t estimateManifestSize(std::size_t additional_entries = 0) {
return static_cast<ManifestImpl &>(*this).estimateManifestSizeImpl(
additional_entries);
}
/*
* After the call to encode, users MUST call clear before adding data
* to the manifest.
*/
Manifest &encode() { return static_cast<ManifestImpl &>(*this).encodeImpl(); }
Manifest &decode() {
Manifest::decoder_.decode();
manifest_type_ = decoder_.getManifestType();
hash_algorithm_ = decoder_.getHashAlgorithm();
is_last_ = decoder_.getIsFinalManifest();
return static_cast<ManifestImpl &>(*this).decodeImpl();
}
static std::size_t getManifestHeaderSize() {
return Encoder::getManifestHeaderSize();
}
static std::size_t getManifestEntrySize() {
return Encoder::getManifestEntrySize();
}
Manifest &setManifestType(ManifestType type) {
manifest_type_ = type;
encoder_.setManifestType(manifest_type_);
return *this;
}
Manifest &setHashAlgorithm(HashAlgorithm hash_algorithm) {
hash_algorithm_ = hash_algorithm;
encoder_.setHashAlgorithm(hash_algorithm_);
return *this;
}
HashAlgorithm getHashAlgorithm() { return hash_algorithm_; }
ManifestType getManifestType() const { return manifest_type_; }
bool isFinalManifest() const { return is_last_; }
Manifest &setVersion(ManifestVersion version) {
encoder_.setVersion(version);
return *this;
}
Manifest &setFinalBlockNumber(std::uint32_t final_block_number) {
encoder_.setFinalBlockNumber(final_block_number);
return *this;
}
uint32_t getFinalBlockNumber() const {
return decoder_.getFinalBlockNumber();
}
ManifestVersion getVersion() const { return decoder_.getVersion(); }
Manifest &setFinalManifest(bool is_final_manifest) {
encoder_.setIsFinalManifest(is_final_manifest);
is_last_ = is_final_manifest;
return *this;
}
Manifest &clear() {
encoder_.clear();
decoder_.clear();
return *this;
}
protected:
ManifestType manifest_type_;
HashAlgorithm hash_algorithm_;
bool is_last_;
Encoder encoder_;
Decoder decoder_;
};
} // end namespace core
} // end namespace transport
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