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// Copyright (c) 2006-2009 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 "chrome/browser/sync/engine/download_updates_command.h"
#include <string>
#include "chrome/browser/sync/engine/syncer.h"
#include "chrome/browser/sync/engine/syncer_proto_util.h"
#include "chrome/browser/sync/engine/syncproto.h"
#include "chrome/browser/sync/sessions/sync_session.h"
#include "chrome/browser/sync/syncable/directory_manager.h"
#include "chrome/browser/sync/util/sync_types.h"
using syncable::ScopedDirLookup;
namespace browser_sync {
using sessions::StatusController;
using sessions::SyncSession;
using std::string;
using syncable::FIRST_REAL_MODEL_TYPE;
using syncable::MODEL_TYPE_COUNT;
DownloadUpdatesCommand::DownloadUpdatesCommand() {}
DownloadUpdatesCommand::~DownloadUpdatesCommand() {}
void DownloadUpdatesCommand::ExecuteImpl(SyncSession* session) {
ClientToServerMessage client_to_server_message;
ClientToServerResponse update_response;
client_to_server_message.set_share(session->context()->account_name());
client_to_server_message.set_message_contents(
ClientToServerMessage::GET_UPDATES);
GetUpdatesMessage* get_updates =
client_to_server_message.mutable_get_updates();
ScopedDirLookup dir(session->context()->directory_manager(),
session->context()->account_name());
if (!dir.good()) {
LOG(ERROR) << "Scoped dir lookup failed!";
return;
}
// Pick some subset of the enabled types where all types in the set
// are at the same last_download_timestamp. Do an update for those types.
syncable::ModelTypeBitSet enabled_types;
for (ModelSafeRoutingInfo::const_iterator i = session->routing_info().begin();
i != session->routing_info().end(); ++i) {
enabled_types[i->first] = true;
}
syncable::MultiTypeTimeStamp target =
dir->GetTypesWithOldestLastDownloadTimestamp(enabled_types);
LOG(INFO) << "Getting updates from ts " << target.timestamp
<< " for types " << target.data_types.to_string()
<< " (of possible " << enabled_types.to_string() << ")";
DCHECK(target.data_types.any());
target.data_types.set(syncable::TOP_LEVEL_FOLDER); // Always fetched.
get_updates->set_from_timestamp(target.timestamp);
// Set the requested_types protobuf field so that we fetch all enabled types.
SetRequestedTypes(target.data_types, get_updates->mutable_requested_types());
// We want folders for our associated types, always. If we were to set
// this to false, the server would send just the non-container items
// (e.g. Bookmark URLs but not their containing folders).
get_updates->set_fetch_folders(true);
// Set GetUpdatesMessage.GetUpdatesCallerInfo information.
get_updates->mutable_caller_info()->set_source(session->TestAndSetSource());
get_updates->mutable_caller_info()->set_notifications_enabled(
session->context()->notifications_enabled());
SyncerProtoUtil::AddRequestBirthday(dir, &client_to_server_message);
bool ok = SyncerProtoUtil::PostClientToServerMessage(
client_to_server_message,
&update_response,
session);
DLOG(INFO) << SyncerProtoUtil::ClientToServerResponseDebugString(
update_response);
StatusController* status = session->status_controller();
status->set_updates_request_parameters(target);
if (!ok) {
status->increment_num_consecutive_errors();
status->mutable_updates_response()->Clear();
LOG(ERROR) << "PostClientToServerMessage() failed during GetUpdates";
return;
}
status->mutable_updates_response()->CopyFrom(update_response);
LOG(INFO) << "GetUpdates from ts " << get_updates->from_timestamp()
<< " returned " << update_response.get_updates().entries_size()
<< " updates.";
}
void DownloadUpdatesCommand::SetRequestedTypes(
const syncable::ModelTypeBitSet& target_datatypes,
sync_pb::EntitySpecifics* filter_protobuf) {
// The datatypes which should be synced are dictated by the value of the
// ModelSafeRoutingInfo. If a datatype is in the routing info map, it
// should be synced (even if it's GROUP_PASSIVE).
int requested_type_count = 0;
for (int i = FIRST_REAL_MODEL_TYPE; i < MODEL_TYPE_COUNT; ++i) {
if (target_datatypes[i]) {
requested_type_count++;
syncable::AddDefaultExtensionValue(syncable::ModelTypeFromInt(i),
filter_protobuf);
}
}
DCHECK_LT(0, requested_type_count) << "Doing GetUpdates with empty filter.";
}
} // namespace browser_sync
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