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| 1 // Copyright 2014 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/sync/core/attachments/attachment_service_impl.h" | |
| 6 | |
| 7 #include <iterator> | |
| 8 #include <utility> | |
| 9 | |
| 10 #include "base/bind.h" | |
| 11 #include "base/location.h" | |
| 12 #include "base/single_thread_task_runner.h" | |
| 13 #include "base/threading/thread_task_runner_handle.h" | |
| 14 #include "base/time/time.h" | |
| 15 #include "components/sync/api/attachments/attachment.h" | |
| 16 #include "components/sync/core/attachments/fake_attachment_downloader.h" | |
| 17 #include "components/sync/core/attachments/fake_attachment_uploader.h" | |
| 18 | |
| 19 namespace syncer { | |
| 20 | |
| 21 // GetOrDownloadAttachments starts multiple parallel DownloadAttachment calls. | |
| 22 // GetOrDownloadState tracks completion of these calls and posts callback for | |
| 23 // consumer once all attachments are either retrieved or reported unavailable. | |
| 24 class AttachmentServiceImpl::GetOrDownloadState | |
| 25 : public base::RefCounted<GetOrDownloadState>, | |
| 26 public base::NonThreadSafe { | |
| 27 public: | |
| 28 // GetOrDownloadState gets parameter from values passed to | |
| 29 // AttachmentService::GetOrDownloadAttachments. | |
| 30 // |attachment_ids| is a list of attachmens to retrieve. | |
| 31 // |callback| will be posted on current thread when all attachments retrieved | |
| 32 // or confirmed unavailable. | |
| 33 GetOrDownloadState(const AttachmentIdList& attachment_ids, | |
| 34 const GetOrDownloadCallback& callback); | |
| 35 | |
| 36 // Attachment was just retrieved. Add it to retrieved attachments. | |
| 37 void AddAttachment(const Attachment& attachment); | |
| 38 | |
| 39 // Both reading from local store and downloading attachment failed. | |
| 40 // Add it to unavailable set. | |
| 41 void AddUnavailableAttachmentId(const AttachmentId& attachment_id); | |
| 42 | |
| 43 private: | |
| 44 friend class base::RefCounted<GetOrDownloadState>; | |
| 45 virtual ~GetOrDownloadState(); | |
| 46 | |
| 47 // If all attachment requests completed then post callback to consumer with | |
| 48 // results. | |
| 49 void PostResultIfAllRequestsCompleted(); | |
| 50 | |
| 51 GetOrDownloadCallback callback_; | |
| 52 | |
| 53 // Requests for these attachments are still in progress. | |
| 54 AttachmentIdSet in_progress_attachments_; | |
| 55 | |
| 56 AttachmentIdSet unavailable_attachments_; | |
| 57 std::unique_ptr<AttachmentMap> retrieved_attachments_; | |
| 58 | |
| 59 DISALLOW_COPY_AND_ASSIGN(GetOrDownloadState); | |
| 60 }; | |
| 61 | |
| 62 AttachmentServiceImpl::GetOrDownloadState::GetOrDownloadState( | |
| 63 const AttachmentIdList& attachment_ids, | |
| 64 const GetOrDownloadCallback& callback) | |
| 65 : callback_(callback), retrieved_attachments_(new AttachmentMap()) { | |
| 66 std::copy( | |
| 67 attachment_ids.begin(), attachment_ids.end(), | |
| 68 std::inserter(in_progress_attachments_, in_progress_attachments_.end())); | |
| 69 PostResultIfAllRequestsCompleted(); | |
| 70 } | |
| 71 | |
| 72 AttachmentServiceImpl::GetOrDownloadState::~GetOrDownloadState() { | |
| 73 DCHECK(CalledOnValidThread()); | |
| 74 } | |
| 75 | |
| 76 void AttachmentServiceImpl::GetOrDownloadState::AddAttachment( | |
| 77 const Attachment& attachment) { | |
| 78 DCHECK(CalledOnValidThread()); | |
| 79 DCHECK(retrieved_attachments_->find(attachment.GetId()) == | |
| 80 retrieved_attachments_->end()); | |
| 81 retrieved_attachments_->insert( | |
| 82 std::make_pair(attachment.GetId(), attachment)); | |
| 83 DCHECK(in_progress_attachments_.find(attachment.GetId()) != | |
| 84 in_progress_attachments_.end()); | |
| 85 in_progress_attachments_.erase(attachment.GetId()); | |
| 86 PostResultIfAllRequestsCompleted(); | |
| 87 } | |
| 88 | |
| 89 void AttachmentServiceImpl::GetOrDownloadState::AddUnavailableAttachmentId( | |
| 90 const AttachmentId& attachment_id) { | |
| 91 DCHECK(CalledOnValidThread()); | |
| 92 DCHECK(unavailable_attachments_.find(attachment_id) == | |
| 93 unavailable_attachments_.end()); | |
| 94 unavailable_attachments_.insert(attachment_id); | |
| 95 DCHECK(in_progress_attachments_.find(attachment_id) != | |
| 96 in_progress_attachments_.end()); | |
| 97 in_progress_attachments_.erase(attachment_id); | |
| 98 PostResultIfAllRequestsCompleted(); | |
| 99 } | |
| 100 | |
| 101 void AttachmentServiceImpl::GetOrDownloadState:: | |
| 102 PostResultIfAllRequestsCompleted() { | |
| 103 if (in_progress_attachments_.empty()) { | |
| 104 // All requests completed. Let's notify consumer. | |
| 105 GetOrDownloadResult result = | |
| 106 unavailable_attachments_.empty() ? GET_SUCCESS : GET_UNSPECIFIED_ERROR; | |
| 107 base::ThreadTaskRunnerHandle::Get()->PostTask( | |
| 108 FROM_HERE, | |
| 109 base::Bind(callback_, result, base::Passed(&retrieved_attachments_))); | |
| 110 } | |
| 111 } | |
| 112 | |
| 113 AttachmentServiceImpl::AttachmentServiceImpl( | |
| 114 std::unique_ptr<AttachmentStoreForSync> attachment_store, | |
| 115 std::unique_ptr<AttachmentUploader> attachment_uploader, | |
| 116 std::unique_ptr<AttachmentDownloader> attachment_downloader, | |
| 117 Delegate* delegate, | |
| 118 const base::TimeDelta& initial_backoff_delay, | |
| 119 const base::TimeDelta& max_backoff_delay) | |
| 120 : attachment_store_(std::move(attachment_store)), | |
| 121 attachment_uploader_(std::move(attachment_uploader)), | |
| 122 attachment_downloader_(std::move(attachment_downloader)), | |
| 123 delegate_(delegate), | |
| 124 weak_ptr_factory_(this) { | |
| 125 DCHECK(CalledOnValidThread()); | |
| 126 DCHECK(attachment_store_.get()); | |
| 127 | |
| 128 // TODO(maniscalco): Observe network connectivity change events. When the | |
| 129 // network becomes disconnected, consider suspending queue dispatch. When | |
| 130 // connectivity is restored, consider clearing any dispatch backoff (bug | |
| 131 // 411981). | |
| 132 upload_task_queue_.reset(new TaskQueue<AttachmentId>( | |
| 133 base::Bind(&AttachmentServiceImpl::BeginUpload, | |
| 134 weak_ptr_factory_.GetWeakPtr()), | |
| 135 initial_backoff_delay, max_backoff_delay)); | |
| 136 | |
| 137 net::NetworkChangeNotifier::AddNetworkChangeObserver(this); | |
| 138 } | |
| 139 | |
| 140 AttachmentServiceImpl::~AttachmentServiceImpl() { | |
| 141 DCHECK(CalledOnValidThread()); | |
| 142 net::NetworkChangeNotifier::RemoveNetworkChangeObserver(this); | |
| 143 } | |
| 144 | |
| 145 // Static. | |
| 146 std::unique_ptr<AttachmentService> AttachmentServiceImpl::CreateForTest() { | |
| 147 std::unique_ptr<AttachmentStore> attachment_store = | |
| 148 AttachmentStore::CreateInMemoryStore(); | |
| 149 std::unique_ptr<AttachmentUploader> attachment_uploader( | |
| 150 new FakeAttachmentUploader); | |
| 151 std::unique_ptr<AttachmentDownloader> attachment_downloader( | |
| 152 new FakeAttachmentDownloader()); | |
| 153 std::unique_ptr<AttachmentService> attachment_service( | |
| 154 new AttachmentServiceImpl( | |
| 155 attachment_store->CreateAttachmentStoreForSync(), | |
| 156 std::move(attachment_uploader), std::move(attachment_downloader), | |
| 157 NULL, base::TimeDelta(), base::TimeDelta())); | |
| 158 return attachment_service; | |
| 159 } | |
| 160 | |
| 161 void AttachmentServiceImpl::GetOrDownloadAttachments( | |
| 162 const AttachmentIdList& attachment_ids, | |
| 163 const GetOrDownloadCallback& callback) { | |
| 164 DCHECK(CalledOnValidThread()); | |
| 165 scoped_refptr<GetOrDownloadState> state( | |
| 166 new GetOrDownloadState(attachment_ids, callback)); | |
| 167 // SetModelTypeReference() makes attachments visible for model type. | |
| 168 // Needed when attachment doesn't have model type reference, but still | |
| 169 // available in local store. | |
| 170 attachment_store_->SetModelTypeReference(attachment_ids); | |
| 171 attachment_store_->Read(attachment_ids, | |
| 172 base::Bind(&AttachmentServiceImpl::ReadDone, | |
| 173 weak_ptr_factory_.GetWeakPtr(), state)); | |
| 174 } | |
| 175 | |
| 176 void AttachmentServiceImpl::ReadDone( | |
| 177 const scoped_refptr<GetOrDownloadState>& state, | |
| 178 const AttachmentStore::Result& result, | |
| 179 std::unique_ptr<AttachmentMap> attachments, | |
| 180 std::unique_ptr<AttachmentIdList> unavailable_attachment_ids) { | |
| 181 // Add read attachments to result. | |
| 182 for (AttachmentMap::const_iterator iter = attachments->begin(); | |
| 183 iter != attachments->end(); ++iter) { | |
| 184 state->AddAttachment(iter->second); | |
| 185 } | |
| 186 | |
| 187 AttachmentIdList::const_iterator iter = unavailable_attachment_ids->begin(); | |
| 188 AttachmentIdList::const_iterator end = unavailable_attachment_ids->end(); | |
| 189 if (result != AttachmentStore::STORE_INITIALIZATION_FAILED && | |
| 190 attachment_downloader_.get()) { | |
| 191 // Try to download locally unavailable attachments. | |
| 192 for (; iter != end; ++iter) { | |
| 193 attachment_downloader_->DownloadAttachment( | |
| 194 *iter, base::Bind(&AttachmentServiceImpl::DownloadDone, | |
| 195 weak_ptr_factory_.GetWeakPtr(), state, *iter)); | |
| 196 } | |
| 197 } else { | |
| 198 // No downloader so all locally unavailable attachments are unavailable. | |
| 199 for (; iter != end; ++iter) { | |
| 200 state->AddUnavailableAttachmentId(*iter); | |
| 201 } | |
| 202 } | |
| 203 } | |
| 204 | |
| 205 void AttachmentServiceImpl::WriteDone( | |
| 206 const scoped_refptr<GetOrDownloadState>& state, | |
| 207 const Attachment& attachment, | |
| 208 const AttachmentStore::Result& result) { | |
| 209 switch (result) { | |
| 210 case AttachmentStore::SUCCESS: | |
| 211 state->AddAttachment(attachment); | |
| 212 break; | |
| 213 case AttachmentStore::UNSPECIFIED_ERROR: | |
| 214 case AttachmentStore::STORE_INITIALIZATION_FAILED: | |
| 215 state->AddUnavailableAttachmentId(attachment.GetId()); | |
| 216 break; | |
| 217 } | |
| 218 } | |
| 219 | |
| 220 void AttachmentServiceImpl::UploadDone( | |
| 221 const AttachmentUploader::UploadResult& result, | |
| 222 const AttachmentId& attachment_id) { | |
| 223 DCHECK(CalledOnValidThread()); | |
| 224 AttachmentIdList ids; | |
| 225 ids.push_back(attachment_id); | |
| 226 switch (result) { | |
| 227 case AttachmentUploader::UPLOAD_SUCCESS: | |
| 228 attachment_store_->DropSyncReference(ids); | |
| 229 upload_task_queue_->MarkAsSucceeded(attachment_id); | |
| 230 if (delegate_) { | |
| 231 delegate_->OnAttachmentUploaded(attachment_id); | |
| 232 } | |
| 233 break; | |
| 234 case AttachmentUploader::UPLOAD_TRANSIENT_ERROR: | |
| 235 upload_task_queue_->MarkAsFailed(attachment_id); | |
| 236 upload_task_queue_->AddToQueue(attachment_id); | |
| 237 break; | |
| 238 case AttachmentUploader::UPLOAD_UNSPECIFIED_ERROR: | |
| 239 // TODO(pavely): crbug/372622: Deal with UploadAttachment failures. | |
| 240 attachment_store_->DropSyncReference(ids); | |
| 241 upload_task_queue_->MarkAsFailed(attachment_id); | |
| 242 break; | |
| 243 } | |
| 244 } | |
| 245 | |
| 246 void AttachmentServiceImpl::DownloadDone( | |
| 247 const scoped_refptr<GetOrDownloadState>& state, | |
| 248 const AttachmentId& attachment_id, | |
| 249 const AttachmentDownloader::DownloadResult& result, | |
| 250 std::unique_ptr<Attachment> attachment) { | |
| 251 switch (result) { | |
| 252 case AttachmentDownloader::DOWNLOAD_SUCCESS: { | |
| 253 AttachmentList attachment_list; | |
| 254 attachment_list.push_back(*attachment.get()); | |
| 255 attachment_store_->Write( | |
| 256 attachment_list, | |
| 257 base::Bind(&AttachmentServiceImpl::WriteDone, | |
| 258 weak_ptr_factory_.GetWeakPtr(), state, *attachment.get())); | |
| 259 break; | |
| 260 } | |
| 261 case AttachmentDownloader::DOWNLOAD_TRANSIENT_ERROR: | |
| 262 case AttachmentDownloader::DOWNLOAD_UNSPECIFIED_ERROR: | |
| 263 state->AddUnavailableAttachmentId(attachment_id); | |
| 264 break; | |
| 265 } | |
| 266 } | |
| 267 | |
| 268 void AttachmentServiceImpl::BeginUpload(const AttachmentId& attachment_id) { | |
| 269 DCHECK(CalledOnValidThread()); | |
| 270 AttachmentIdList attachment_ids; | |
| 271 attachment_ids.push_back(attachment_id); | |
| 272 attachment_store_->Read(attachment_ids, | |
| 273 base::Bind(&AttachmentServiceImpl::ReadDoneNowUpload, | |
| 274 weak_ptr_factory_.GetWeakPtr())); | |
| 275 } | |
| 276 | |
| 277 void AttachmentServiceImpl::UploadAttachments( | |
| 278 const AttachmentIdList& attachment_ids) { | |
| 279 DCHECK(CalledOnValidThread()); | |
| 280 if (!attachment_uploader_.get()) { | |
| 281 return; | |
| 282 } | |
| 283 attachment_store_->SetSyncReference(attachment_ids); | |
| 284 | |
| 285 for (auto iter = attachment_ids.begin(); iter != attachment_ids.end(); | |
| 286 ++iter) { | |
| 287 upload_task_queue_->AddToQueue(*iter); | |
| 288 } | |
| 289 } | |
| 290 | |
| 291 void AttachmentServiceImpl::OnNetworkChanged( | |
| 292 net::NetworkChangeNotifier::ConnectionType type) { | |
| 293 if (type != net::NetworkChangeNotifier::CONNECTION_NONE) { | |
| 294 upload_task_queue_->ResetBackoff(); | |
| 295 } | |
| 296 } | |
| 297 | |
| 298 void AttachmentServiceImpl::ReadDoneNowUpload( | |
| 299 const AttachmentStore::Result& result, | |
| 300 std::unique_ptr<AttachmentMap> attachments, | |
| 301 std::unique_ptr<AttachmentIdList> unavailable_attachment_ids) { | |
| 302 DCHECK(CalledOnValidThread()); | |
| 303 if (!unavailable_attachment_ids->empty()) { | |
| 304 // TODO(maniscalco): We failed to read some attachments. What should we do | |
| 305 // now? | |
| 306 AttachmentIdList::const_iterator iter = unavailable_attachment_ids->begin(); | |
| 307 AttachmentIdList::const_iterator end = unavailable_attachment_ids->end(); | |
| 308 for (; iter != end; ++iter) { | |
| 309 upload_task_queue_->Cancel(*iter); | |
| 310 } | |
| 311 attachment_store_->DropSyncReference(*unavailable_attachment_ids); | |
| 312 } | |
| 313 | |
| 314 AttachmentMap::const_iterator iter = attachments->begin(); | |
| 315 AttachmentMap::const_iterator end = attachments->end(); | |
| 316 for (; iter != end; ++iter) { | |
| 317 attachment_uploader_->UploadAttachment( | |
| 318 iter->second, base::Bind(&AttachmentServiceImpl::UploadDone, | |
| 319 weak_ptr_factory_.GetWeakPtr())); | |
| 320 } | |
| 321 } | |
| 322 | |
| 323 void AttachmentServiceImpl::SetTimerForTest( | |
| 324 std::unique_ptr<base::Timer> timer) { | |
| 325 upload_task_queue_->SetTimerForTest(std::move(timer)); | |
| 326 } | |
| 327 | |
| 328 } // namespace syncer | |
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Chromium Code Reviews
Issue 2399953002:
[Sync] Move attachments code out of core/. (Closed)
