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// Copyright 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "sync/engine/commit.h"
#include "base/debug/trace_event.h"
#include "sync/engine/commit_util.h"
#include "sync/engine/sync_directory_commit_contribution.h"
#include "sync/engine/syncer.h"
#include "sync/engine/syncer_proto_util.h"
#include "sync/sessions/sync_session.h"
namespace syncer {
Commit::Commit(
const std::map<ModelType, SyncDirectoryCommitContribution*>& contributions,
const sync_pb::ClientToServerMessage& message,
ExtensionsActivity::Records extensions_activity_buffer)
: contributions_(contributions),
deleter_(&contributions_),
message_(message),
extensions_activity_buffer_(extensions_activity_buffer),
cleaned_up_(false) {
}
Commit::~Commit() {
DCHECK(cleaned_up_);
}
Commit* Commit::Init(
ModelTypeSet requested_types,
size_t max_entries,
const std::string& account_name,
const std::string& cache_guid,
CommitContributorMap* contributor_map,
ExtensionsActivity* extensions_activity) {
// Gather per-type contributions.
ContributionMap contributions;
size_t num_entries = 0;
for (ModelTypeSet::Iterator it = requested_types.First();
it.Good(); it.Inc()) {
CommitContributorMap::iterator cm_it = contributor_map->find(it.Get());
if (cm_it == contributor_map->end()) {
NOTREACHED()
<< "Could not find requested type " << ModelTypeToString(it.Get())
<< " in contributor map.";
continue;
}
size_t spaces_remaining = max_entries - num_entries;
SyncDirectoryCommitContribution* contribution =
cm_it->second->GetContribution(spaces_remaining);
if (contribution) {
num_entries += contribution->GetNumEntries();
contributions.insert(std::make_pair(it.Get(), contribution));
}
if (num_entries == max_entries) {
break; // No point in continuting to iterate in this case.
}
}
// Give up if no one had anything to commit.
if (contributions.empty())
return NULL;
sync_pb::ClientToServerMessage message;
message.set_message_contents(sync_pb::ClientToServerMessage::COMMIT);
message.set_share(account_name);
sync_pb::CommitMessage* commit_message = message.mutable_commit();
commit_message->set_cache_guid(cache_guid);
// Set extensions activity if bookmark commits are present.
ExtensionsActivity::Records extensions_activity_buffer;
ContributionMap::iterator it = contributions.find(syncer::BOOKMARKS);
if (it != contributions.end() && it->second->GetNumEntries() != 0) {
commit_util::AddExtensionsActivityToMessage(
extensions_activity,
&extensions_activity_buffer,
commit_message);
}
// Set the client config params.
ModelTypeSet enabled_types;
for (CommitContributorMap::iterator it = contributor_map->begin();
it != contributor_map->end(); ++it) {
enabled_types.Put(it->first);
}
commit_util::AddClientConfigParamsToMessage(enabled_types,
commit_message);
// Finally, serialize all our contributions.
for (std::map<ModelType, SyncDirectoryCommitContribution*>::iterator it =
contributions.begin(); it != contributions.end(); ++it) {
it->second->AddToCommitMessage(&message);
}
// If we made it this far, then we've successfully prepared a commit message.
return new Commit(contributions, message, extensions_activity_buffer);
}
SyncerError Commit::PostAndProcessResponse(
sessions::SyncSession* session,
sessions::StatusController* status,
ExtensionsActivity* extensions_activity) {
ModelTypeSet request_types;
for (ContributionMap::const_iterator it = contributions_.begin();
it != contributions_.end(); ++it) {
request_types.Put(it->first);
}
session->mutable_status_controller()->set_commit_request_types(request_types);
if (session->context()->debug_info_getter()) {
sync_pb::DebugInfo* debug_info = message_.mutable_debug_info();
session->context()->debug_info_getter()->GetDebugInfo(debug_info);
}
DVLOG(1) << "Sending commit message.";
TRACE_EVENT_BEGIN0("sync", "PostCommit");
const SyncerError post_result = SyncerProtoUtil::PostClientToServerMessage(
&message_, &response_, session);
TRACE_EVENT_END0("sync", "PostCommit");
if (post_result != SYNCER_OK) {
LOG(WARNING) << "Post commit failed";
return post_result;
}
if (!response_.has_commit()) {
LOG(WARNING) << "Commit response has no commit body!";
return SERVER_RESPONSE_VALIDATION_FAILED;
}
size_t message_entries = message_.commit().entries_size();
size_t response_entries = response_.commit().entryresponse_size();
if (message_entries != response_entries) {
LOG(ERROR)
<< "Commit response has wrong number of entries! "
<< "Expected: " << message_entries << ", "
<< "Got: " << response_entries;
return SERVER_RESPONSE_VALIDATION_FAILED;
}
if (session->context()->debug_info_getter()) {
// Clear debug info now that we have successfully sent it to the server.
DVLOG(1) << "Clearing client debug info.";
session->context()->debug_info_getter()->ClearDebugInfo();
}
// Let the contributors process the responses to each of their requests.
SyncerError processing_result = SYNCER_OK;
for (std::map<ModelType, SyncDirectoryCommitContribution*>::iterator it =
contributions_.begin(); it != contributions_.end(); ++it) {
TRACE_EVENT1("sync", "ProcessCommitResponse",
"type", ModelTypeToString(it->first));
SyncerError type_result =
it->second->ProcessCommitResponse(response_, status);
if (processing_result == SYNCER_OK && type_result != SYNCER_OK) {
processing_result = type_result;
}
}
// Handle bookmarks' special extensions activity stats.
if (session->status_controller().
model_neutral_state().num_successful_bookmark_commits == 0) {
extensions_activity->PutRecords(extensions_activity_buffer_);
}
return processing_result;
}
void Commit::CleanUp() {
for (ContributionMap::iterator it = contributions_.begin();
it != contributions_.end(); ++it) {
it->second->CleanUp();
}
cleaned_up_ = true;
}
} // namespace syncer
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