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| 1 // Copyright 2016 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "components/offline_pages/background/request_queue_in_memory_store.h" | |
| 6 | |
| 7 #include <unordered_set> | |
| 8 | |
| 9 #include "base/bind.h" | |
| 10 #include "base/location.h" | |
| 11 #include "base/threading/thread_task_runner_handle.h" | |
| 12 #include "components/offline_pages/background/save_page_request.h" | |
| 13 | |
| 14 namespace offline_pages { | |
| 15 | |
| 16 RequestQueueInMemoryStore::RequestQueueInMemoryStore() {} | |
| 17 | |
| 18 RequestQueueInMemoryStore::~RequestQueueInMemoryStore() {} | |
| 19 | |
| 20 void RequestQueueInMemoryStore::GetRequests( | |
| 21 const GetRequestsCallback& callback) { | |
| 22 std::vector<std::unique_ptr<SavePageRequest>> result_requests; | |
| 23 for (const auto& id_request_pair : requests_) { | |
| 24 std::unique_ptr<SavePageRequest> request( | |
| 25 new SavePageRequest(id_request_pair.second)); | |
| 26 result_requests.push_back(std::move(request)); | |
| 27 } | |
| 28 base::ThreadTaskRunnerHandle::Get()->PostTask( | |
| 29 FROM_HERE, | |
| 30 base::Bind(callback, true, base::Passed(std::move(result_requests)))); | |
| 31 } | |
| 32 | |
| 33 void RequestQueueInMemoryStore::GetRequestsByIds( | |
| 34 const std::vector<int64_t>& request_ids, | |
| 35 const UpdateCallback& callback) { | |
| 36 std::unique_ptr<UpdateRequestsResult> result( | |
| 37 new UpdateRequestsResult(state())); | |
| 38 | |
| 39 ItemActionStatus status; | |
| 40 // Make sure not to include the same request multiple times, while preserving | |
| 41 // the order of non-duplicated IDs in the result. | |
| 42 std::unordered_set<int64_t> processed_ids; | |
| 43 for (const auto& request_id : request_ids) { | |
| 44 if (!processed_ids.insert(request_id).second) | |
| 45 continue; | |
| 46 RequestsMap::iterator iter = requests_.find(request_id); | |
| 47 if (iter != requests_.end()) { | |
| 48 status = ItemActionStatus::SUCCESS; | |
| 49 result->updated_items.push_back(iter->second); | |
| 50 } else { | |
| 51 status = ItemActionStatus::NOT_FOUND; | |
| 52 } | |
| 53 result->item_statuses.push_back(std::make_pair(request_id, status)); | |
| 54 } | |
| 55 | |
| 56 base::ThreadTaskRunnerHandle::Get()->PostTask( | |
| 57 FROM_HERE, base::Bind(callback, base::Passed(&result))); | |
| 58 } | |
| 59 | |
| 60 void RequestQueueInMemoryStore::AddRequest(const SavePageRequest& request, | |
| 61 const AddCallback& callback) { | |
| 62 RequestsMap::iterator iter = requests_.find(request.request_id()); | |
| 63 ItemActionStatus status; | |
| 64 if (iter == requests_.end()) { | |
| 65 requests_.insert(iter, std::make_pair(request.request_id(), request)); | |
| 66 status = ItemActionStatus::SUCCESS; | |
| 67 } else { | |
| 68 status = ItemActionStatus::ALREADY_EXISTS; | |
| 69 } | |
| 70 | |
| 71 base::ThreadTaskRunnerHandle::Get()->PostTask(FROM_HERE, | |
| 72 base::Bind(callback, status)); | |
| 73 } | |
| 74 | |
| 75 void RequestQueueInMemoryStore::UpdateRequests( | |
| 76 const std::vector<SavePageRequest>& requests, | |
| 77 const RequestQueue::UpdateCallback& callback) { | |
| 78 std::unique_ptr<UpdateRequestsResult> result( | |
| 79 new UpdateRequestsResult(state())); | |
| 80 | |
| 81 ItemActionStatus status; | |
| 82 for (const auto& request : requests) { | |
| 83 RequestsMap::iterator iter = requests_.find(request.request_id()); | |
| 84 if (iter != requests_.end()) { | |
| 85 status = ItemActionStatus::SUCCESS; | |
| 86 iter->second = request; | |
| 87 result->updated_items.push_back(request); | |
| 88 } else { | |
| 89 status = ItemActionStatus::NOT_FOUND; | |
| 90 } | |
| 91 result->item_statuses.push_back( | |
| 92 std::make_pair(request.request_id(), status)); | |
| 93 } | |
| 94 | |
| 95 base::ThreadTaskRunnerHandle::Get()->PostTask( | |
| 96 FROM_HERE, base::Bind(callback, base::Passed(&result))); | |
| 97 } | |
| 98 | |
| 99 void RequestQueueInMemoryStore::RemoveRequests( | |
| 100 const std::vector<int64_t>& request_ids, | |
| 101 const UpdateCallback& callback) { | |
| 102 std::unique_ptr<UpdateRequestsResult> result( | |
| 103 new UpdateRequestsResult(StoreState::LOADED)); | |
| 104 | |
| 105 ItemActionStatus status; | |
| 106 // If we find a request, mark it as succeeded, and put it in the request list. | |
| 107 // Otherwise mark it as failed. | |
| 108 for (auto request_id : request_ids) { | |
| 109 RequestsMap::iterator iter = requests_.find(request_id); | |
| 110 if (iter != requests_.end()) { | |
| 111 status = ItemActionStatus::SUCCESS; | |
| 112 result->updated_items.push_back(iter->second); | |
| 113 requests_.erase(iter); | |
| 114 } else { | |
| 115 status = ItemActionStatus::NOT_FOUND; | |
| 116 } | |
| 117 result->item_statuses.push_back(std::make_pair(request_id, status)); | |
| 118 } | |
| 119 | |
| 120 base::ThreadTaskRunnerHandle::Get()->PostTask( | |
| 121 FROM_HERE, base::Bind(callback, base::Passed(&result))); | |
| 122 } | |
| 123 | |
| 124 void RequestQueueInMemoryStore::Reset(const ResetCallback& callback) { | |
| 125 requests_.clear(); | |
| 126 base::ThreadTaskRunnerHandle::Get()->PostTask(FROM_HERE, | |
| 127 base::Bind(callback, true)); | |
| 128 } | |
| 129 | |
| 130 StoreState RequestQueueInMemoryStore::state() const { | |
| 131 return StoreState::LOADED; | |
| 132 } | |
| 133 | |
| 134 } // namespace offline_pages | |
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