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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 "sync/api/attachments/attachment_service_impl.h" | |
| 6 | |
| 7 #include "base/bind.h" | |
| 8 #include "base/message_loop/message_loop.h" | |
| 9 #include "base/thread_task_runner_handle.h" | |
| 10 #include "sync/api/attachments/attachment.h" | |
| 11 #include "sync/internal_api/public/attachments/fake_attachment_downloader.h" | |
| 12 #include "sync/internal_api/public/attachments/fake_attachment_store.h" | |
| 13 #include "sync/internal_api/public/attachments/fake_attachment_uploader.h" | |
| 14 | |
| 15 namespace syncer { | |
| 16 | |
| 17 // GetOrDownloadAttachments starts multiple parallel DownloadAttachment calls. | |
| 18 // GetOrDownloadState tracks completion of these calls and posts callback for | |
| 19 // consumer once all attachments are either retrieved or reported unavailable. | |
| 20 class AttachmentServiceImpl::GetOrDownloadState | |
| 21 : public base::RefCounted<GetOrDownloadState>, | |
| 22 public base::NonThreadSafe { | |
| 23 public: | |
| 24 // GetOrDownloadState gets parameter from values passed to | |
| 25 // AttachmentService::GetOrDownloadAttachments. | |
| 26 // |attachment_ids| is a list of attachmens to retrieve. | |
| 27 // |callback| will be posted on current thread when all attachments retrieved | |
| 28 // or confirmed unavailable. | |
| 29 GetOrDownloadState(const AttachmentIdList& attachment_ids, | |
| 30 const GetOrDownloadCallback& callback); | |
| 31 | |
| 32 // Attachment was just retrieved. Add it to retrieved attachments. | |
| 33 void AddAttachment(const Attachment& attachment); | |
| 34 | |
| 35 // Both reading from local store and downloading attachment failed. | |
| 36 // Add it to unavailable set. | |
| 37 void AddUnavailableAttachmentId(const AttachmentId& attachment_id); | |
| 38 | |
| 39 private: | |
| 40 friend class base::RefCounted<GetOrDownloadState>; | |
| 41 virtual ~GetOrDownloadState(); | |
| 42 | |
| 43 // If all attachment requests completed then post callback to consumer with | |
| 44 // results. | |
| 45 void PostResultIfAllRequestsCompleted(); | |
| 46 | |
| 47 GetOrDownloadCallback callback_; | |
| 48 | |
| 49 // Requests for these attachments are still in progress. | |
| 50 AttachmentIdSet in_progress_attachments_; | |
| 51 | |
| 52 AttachmentIdSet unavailable_attachments_; | |
| 53 scoped_ptr<AttachmentMap> retrieved_attachments_; | |
| 54 | |
| 55 DISALLOW_COPY_AND_ASSIGN(GetOrDownloadState); | |
| 56 }; | |
| 57 | |
| 58 AttachmentServiceImpl::GetOrDownloadState::GetOrDownloadState( | |
| 59 const AttachmentIdList& attachment_ids, | |
| 60 const GetOrDownloadCallback& callback) | |
| 61 : callback_(callback), retrieved_attachments_(new AttachmentMap()) { | |
| 62 std::copy( | |
| 63 attachment_ids.begin(), | |
| 64 attachment_ids.end(), | |
| 65 std::inserter(in_progress_attachments_, in_progress_attachments_.end())); | |
| 66 PostResultIfAllRequestsCompleted(); | |
| 67 } | |
| 68 | |
| 69 AttachmentServiceImpl::GetOrDownloadState::~GetOrDownloadState() { | |
| 70 DCHECK(CalledOnValidThread()); | |
| 71 } | |
| 72 | |
| 73 void AttachmentServiceImpl::GetOrDownloadState::AddAttachment( | |
| 74 const Attachment& attachment) { | |
| 75 DCHECK(CalledOnValidThread()); | |
| 76 DCHECK(retrieved_attachments_->find(attachment.GetId()) == | |
| 77 retrieved_attachments_->end()); | |
| 78 retrieved_attachments_->insert( | |
| 79 std::make_pair(attachment.GetId(), attachment)); | |
| 80 DCHECK(in_progress_attachments_.find(attachment.GetId()) != | |
| 81 in_progress_attachments_.end()); | |
| 82 in_progress_attachments_.erase(attachment.GetId()); | |
| 83 PostResultIfAllRequestsCompleted(); | |
| 84 } | |
| 85 | |
| 86 void AttachmentServiceImpl::GetOrDownloadState::AddUnavailableAttachmentId( | |
| 87 const AttachmentId& attachment_id) { | |
| 88 DCHECK(CalledOnValidThread()); | |
| 89 DCHECK(unavailable_attachments_.find(attachment_id) == | |
| 90 unavailable_attachments_.end()); | |
| 91 unavailable_attachments_.insert(attachment_id); | |
| 92 DCHECK(in_progress_attachments_.find(attachment_id) != | |
| 93 in_progress_attachments_.end()); | |
| 94 in_progress_attachments_.erase(attachment_id); | |
| 95 PostResultIfAllRequestsCompleted(); | |
| 96 } | |
| 97 | |
| 98 void | |
| 99 AttachmentServiceImpl::GetOrDownloadState::PostResultIfAllRequestsCompleted() { | |
| 100 if (in_progress_attachments_.empty()) { | |
| 101 // All requests completed. Let's notify consumer. | |
| 102 GetOrDownloadResult result = | |
| 103 unavailable_attachments_.empty() ? GET_SUCCESS : GET_UNSPECIFIED_ERROR; | |
| 104 base::MessageLoop::current()->PostTask( | |
| 105 FROM_HERE, | |
| 106 base::Bind(callback_, result, base::Passed(&retrieved_attachments_))); | |
| 107 } | |
| 108 } | |
| 109 | |
| 110 AttachmentServiceImpl::AttachmentServiceImpl( | |
| 111 scoped_ptr<AttachmentStore> attachment_store, | |
| 112 scoped_ptr<AttachmentUploader> attachment_uploader, | |
| 113 scoped_ptr<AttachmentDownloader> attachment_downloader, | |
| 114 Delegate* delegate) | |
| 115 : attachment_store_(attachment_store.Pass()), | |
| 116 attachment_uploader_(attachment_uploader.Pass()), | |
| 117 attachment_downloader_(attachment_downloader.Pass()), | |
| 118 delegate_(delegate), | |
| 119 weak_ptr_factory_(this) { | |
| 120 DCHECK(CalledOnValidThread()); | |
| 121 DCHECK(attachment_store_); | |
| 122 } | |
| 123 | |
| 124 AttachmentServiceImpl::~AttachmentServiceImpl() { | |
| 125 DCHECK(CalledOnValidThread()); | |
| 126 } | |
| 127 | |
| 128 // Static. | |
| 129 scoped_ptr<syncer::AttachmentService> AttachmentServiceImpl::CreateForTest() { | |
| 130 scoped_ptr<syncer::AttachmentStore> attachment_store( | |
| 131 new syncer::FakeAttachmentStore(base::ThreadTaskRunnerHandle::Get())); | |
| 132 scoped_ptr<AttachmentUploader> attachment_uploader( | |
| 133 new FakeAttachmentUploader); | |
| 134 scoped_ptr<AttachmentDownloader> attachment_downloader( | |
| 135 new FakeAttachmentDownloader()); | |
| 136 scoped_ptr<syncer::AttachmentService> attachment_service( | |
| 137 new syncer::AttachmentServiceImpl(attachment_store.Pass(), | |
| 138 attachment_uploader.Pass(), | |
| 139 attachment_downloader.Pass(), | |
| 140 NULL)); | |
| 141 return attachment_service.Pass(); | |
| 142 } | |
| 143 | |
| 144 void AttachmentServiceImpl::GetOrDownloadAttachments( | |
| 145 const AttachmentIdList& attachment_ids, | |
| 146 const GetOrDownloadCallback& callback) { | |
| 147 DCHECK(CalledOnValidThread()); | |
| 148 scoped_refptr<GetOrDownloadState> state( | |
| 149 new GetOrDownloadState(attachment_ids, callback)); | |
| 150 attachment_store_->Read(attachment_ids, | |
| 151 base::Bind(&AttachmentServiceImpl::ReadDone, | |
| 152 weak_ptr_factory_.GetWeakPtr(), | |
| 153 state)); | |
| 154 } | |
| 155 | |
| 156 void AttachmentServiceImpl::DropAttachments( | |
| 157 const AttachmentIdList& attachment_ids, | |
| 158 const DropCallback& callback) { | |
| 159 DCHECK(CalledOnValidThread()); | |
| 160 attachment_store_->Drop(attachment_ids, | |
| 161 base::Bind(&AttachmentServiceImpl::DropDone, | |
| 162 weak_ptr_factory_.GetWeakPtr(), | |
| 163 callback)); | |
| 164 } | |
| 165 | |
| 166 void AttachmentServiceImpl::StoreAttachments(const AttachmentList& attachments, | |
| 167 const StoreCallback& callback) { | |
| 168 DCHECK(CalledOnValidThread()); | |
| 169 attachment_store_->Write(attachments, | |
| 170 base::Bind(&AttachmentServiceImpl::WriteDone, | |
| 171 weak_ptr_factory_.GetWeakPtr(), | |
| 172 callback)); | |
| 173 if (attachment_uploader_.get()) { | |
| 174 for (AttachmentList::const_iterator iter = attachments.begin(); | |
| 175 iter != attachments.end(); | |
| 176 ++iter) { | |
| 177 attachment_uploader_->UploadAttachment( | |
| 178 *iter, | |
| 179 base::Bind(&AttachmentServiceImpl::UploadDone, | |
| 180 weak_ptr_factory_.GetWeakPtr())); | |
| 181 } | |
| 182 } | |
| 183 } | |
| 184 | |
| 185 void AttachmentServiceImpl::ReadDone( | |
| 186 const scoped_refptr<GetOrDownloadState>& state, | |
| 187 const AttachmentStore::Result& result, | |
| 188 scoped_ptr<AttachmentMap> attachments, | |
| 189 scoped_ptr<AttachmentIdList> unavailable_attachment_ids) { | |
| 190 // Add read attachments to result. | |
| 191 for (AttachmentMap::const_iterator iter = attachments->begin(); | |
| 192 iter != attachments->end(); | |
| 193 ++iter) { | |
| 194 state->AddAttachment(iter->second); | |
| 195 } | |
| 196 | |
| 197 AttachmentIdList::const_iterator iter = unavailable_attachment_ids->begin(); | |
| 198 AttachmentIdList::const_iterator end = unavailable_attachment_ids->end(); | |
| 199 if (attachment_downloader_.get()) { | |
| 200 // Try to download locally unavailable attachments. | |
| 201 for (; iter != end; ++iter) { | |
| 202 attachment_downloader_->DownloadAttachment( | |
| 203 *iter, | |
| 204 base::Bind(&AttachmentServiceImpl::DownloadDone, | |
| 205 weak_ptr_factory_.GetWeakPtr(), | |
| 206 state, | |
| 207 *iter)); | |
| 208 } | |
| 209 } else { | |
| 210 // No downloader so all locally unavailable attachments are unavailable. | |
| 211 for (; iter != end; ++iter) { | |
| 212 state->AddUnavailableAttachmentId(*iter); | |
| 213 } | |
| 214 } | |
| 215 } | |
| 216 | |
| 217 void AttachmentServiceImpl::DropDone(const DropCallback& callback, | |
| 218 const AttachmentStore::Result& result) { | |
| 219 AttachmentService::DropResult drop_result = | |
| 220 AttachmentService::DROP_UNSPECIFIED_ERROR; | |
| 221 if (result == AttachmentStore::SUCCESS) { | |
| 222 drop_result = AttachmentService::DROP_SUCCESS; | |
| 223 } | |
| 224 // TODO(maniscalco): Deal with case where an error occurred (bug 361251). | |
| 225 base::MessageLoop::current()->PostTask(FROM_HERE, | |
| 226 base::Bind(callback, drop_result)); | |
| 227 } | |
| 228 | |
| 229 void AttachmentServiceImpl::WriteDone(const StoreCallback& callback, | |
| 230 const AttachmentStore::Result& result) { | |
| 231 AttachmentService::StoreResult store_result = | |
| 232 AttachmentService::STORE_UNSPECIFIED_ERROR; | |
| 233 if (result == AttachmentStore::SUCCESS) { | |
| 234 store_result = AttachmentService::STORE_SUCCESS; | |
| 235 } | |
| 236 // TODO(maniscalco): Deal with case where an error occurred (bug 361251). | |
| 237 base::MessageLoop::current()->PostTask(FROM_HERE, | |
| 238 base::Bind(callback, store_result)); | |
| 239 } | |
| 240 | |
| 241 void AttachmentServiceImpl::UploadDone( | |
| 242 const AttachmentUploader::UploadResult& result, | |
| 243 const AttachmentId& attachment_id) { | |
| 244 // TODO(pavely): crbug/372622: Deal with UploadAttachment failures. | |
| 245 if (result != AttachmentUploader::UPLOAD_SUCCESS) | |
| 246 return; | |
| 247 if (delegate_) { | |
| 248 delegate_->OnAttachmentUploaded(attachment_id); | |
| 249 } | |
| 250 } | |
| 251 | |
| 252 void AttachmentServiceImpl::DownloadDone( | |
| 253 const scoped_refptr<GetOrDownloadState>& state, | |
| 254 const AttachmentId& attachment_id, | |
| 255 const AttachmentDownloader::DownloadResult& result, | |
| 256 scoped_ptr<Attachment> attachment) { | |
| 257 if (result == AttachmentDownloader::DOWNLOAD_SUCCESS) { | |
| 258 state->AddAttachment(*attachment.get()); | |
| 259 } else { | |
| 260 state->AddUnavailableAttachmentId(attachment_id); | |
| 261 } | |
| 262 } | |
| 263 | |
| 264 } // namespace syncer | |
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Chromium Code Reviews
Issue 436373002:
Move non-API code out of sync/api/attachments/ (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src