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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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