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// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/sync/engine/loopback_server/persistent_permanent_entity.h"
#include <memory>
#include "base/logging.h"
#include "components/sync/protocol/entity_specifics.pb.h"
#include "components/sync/protocol/loopback_server.pb.h"
#include "components/sync/protocol/sync_entity.pb.h"
using std::string;
using syncer::DataType;
namespace {
// The parent tag for children of the root entity. Entities with this parent are
// referred to as top level enities.
static const char kRootParentTag[] = "0";
} // namespace
namespace syncer {
PersistentPermanentEntity::~PersistentPermanentEntity() = default;
// static
std::unique_ptr<LoopbackServerEntity> PersistentPermanentEntity::CreateNew(
const DataType& data_type,
const string& server_tag,
const string& name,
const string& parent_server_tag) {
if (data_type == syncer::UNSPECIFIED) {
DLOG(WARNING) << "The entity's DataType is invalid.";
return nullptr;
}
if (server_tag.empty()) {
DLOG(WARNING) << "A PersistentPermanentEntity must have a server tag.";
return nullptr;
}
if (name.empty()) {
DLOG(WARNING) << "The entity must have a non-empty name.";
return nullptr;
}
if (parent_server_tag.empty()) {
DLOG(WARNING)
<< "A PersistentPermanentEntity must have a parent server tag.";
return nullptr;
}
if (parent_server_tag == kRootParentTag) {
DLOG(WARNING)
<< "Top-level entities should not be created with this factory.";
return nullptr;
}
string id = LoopbackServerEntity::CreateId(data_type, server_tag);
string parent_id =
LoopbackServerEntity::CreateId(data_type, parent_server_tag);
sync_pb::EntitySpecifics entity_specifics;
AddDefaultFieldValue(data_type, &entity_specifics);
return std::make_unique<PersistentPermanentEntity>(
id, 0, data_type, name, parent_id, server_tag, entity_specifics);
}
// static
std::unique_ptr<LoopbackServerEntity> PersistentPermanentEntity::CreateTopLevel(
const DataType& data_type) {
if (data_type == syncer::UNSPECIFIED) {
DLOG(WARNING) << "The entity's DataType is invalid.";
return nullptr;
}
string server_tag = syncer::DataTypeToProtocolRootTag(data_type);
string name = syncer::DataTypeToDebugString(data_type);
string id = LoopbackServerEntity::GetTopLevelId(data_type);
sync_pb::EntitySpecifics entity_specifics;
AddDefaultFieldValue(data_type, &entity_specifics);
return std::make_unique<PersistentPermanentEntity>(
id, 0, data_type, name, kRootParentTag, server_tag, entity_specifics);
}
// static
std::unique_ptr<LoopbackServerEntity>
PersistentPermanentEntity::CreateUpdatedNigoriEntity(
const sync_pb::SyncEntity& client_entity,
const LoopbackServerEntity& current_server_entity) {
DataType data_type = current_server_entity.GetDataType();
if (data_type != syncer::NIGORI) {
DLOG(WARNING) << "This factory only supports NIGORI entities.";
return nullptr;
}
return std::make_unique<PersistentPermanentEntity>(
current_server_entity.GetId(), current_server_entity.GetVersion(),
data_type, current_server_entity.GetName(),
current_server_entity.GetParentId(),
syncer::DataTypeToProtocolRootTag(data_type), client_entity.specifics());
}
PersistentPermanentEntity::PersistentPermanentEntity(
const string& id,
int64_t version,
const DataType& data_type,
const string& name,
const string& parent_id,
const string& server_defined_unique_tag,
const sync_pb::EntitySpecifics& specifics)
: LoopbackServerEntity(id, data_type, version, name),
server_defined_unique_tag_(server_defined_unique_tag),
parent_id_(parent_id) {
SetSpecifics(specifics);
}
bool PersistentPermanentEntity::RequiresParentId() const {
return true;
}
string PersistentPermanentEntity::GetParentId() const {
return parent_id_;
}
void PersistentPermanentEntity::SerializeAsProto(
sync_pb::SyncEntity* proto) const {
LoopbackServerEntity::SerializeBaseProtoFields(proto);
proto->set_server_defined_unique_tag(server_defined_unique_tag_);
}
bool PersistentPermanentEntity::IsFolder() const {
return true;
}
bool PersistentPermanentEntity::IsPermanent() const {
return true;
}
sync_pb::LoopbackServerEntity_Type
PersistentPermanentEntity::GetLoopbackServerEntityType() const {
return sync_pb::LoopbackServerEntity_Type_PERMANENT;
}
} // namespace syncer
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