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jsobczak
b92881a460
Data Elements describe the custom data entities that can be added to an advertisement. ActionFactory takes a list of Data Elements and creates an Action for the base NP advertisement. PiperOrigin-RevId: 460557059
67 lines
2.0 KiB
C++
67 lines
2.0 KiB
C++
// Copyright 2022 Google LLC
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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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// https://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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#include "third_party/nearby/presence/action_factory.h"
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#include <algorithm>
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#include <vector>
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#include "internal/platform/logging.h"
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namespace nearby {
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namespace presence {
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constexpr int kContentTimestampMask = 0x0F;
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constexpr int kContentTimestampShift = 12;
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constexpr int kEmptyMask = 0;
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int ActionFactory::GetMask(const DataElement& element) {
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int type = element.GetType();
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switch (type) {
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case DataElement::kContextTimestamp: {
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auto value = element.GetValue();
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if (!value.empty()) {
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return (value[0] & kContentTimestampMask) << kContentTimestampShift;
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} else {
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NEARBY_LOG(WARNING, "Context timestamp Data Element without value");
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return kEmptyMask;
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}
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}
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case DataElement::kActiveUnlock:
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case DataElement::kTapToTransfer:
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case DataElement::kNearbyShare:
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case DataElement::kFastPair:
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case DataElement::kFitCast:
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case DataElement::kPresenceManager:
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return type;
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}
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NEARBY_LOG(WARNING, "Data Element 0x%x not supported in base advertisement",
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type);
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return kEmptyMask;
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}
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Action ActionFactory::createAction(
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const std::vector<DataElement>& data_elements) {
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Action action = {.action = 0};
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std::for_each(data_elements.begin(), data_elements.end(),
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[&](const auto& element) {
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int mask = GetMask(element);
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action.action |= mask;
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});
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return action;
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}
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} // namespace presence
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} // namespace nearby
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