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// Copyright 2017 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 "components/history/core/browser/typed_url_sync_metadata_database.h"
#include "base/big_endian.h"
#include "base/logging.h"
#include "components/history/core/browser/url_row.h"
#include "sql/statement.h"
namespace history {
namespace {
// Key in sql::MetaTable, the value will be Serialization of sync
// ModelTypeState, which is for tracking sync state of typed url datatype.
const char kTypedURLModelTypeStateKey[] = "typed_url_model_type_state";
} // namespace
// Description of database table:
//
// typed_url_sync_metadata
// storage_key the rowid of an entry in urls table, used by service to
// look up native data with sync metadata records.
// value Serialize sync EntityMetadata, which is for tracking sync
// state of each typed url.
TypedURLSyncMetadataDatabase::TypedURLSyncMetadataDatabase() {}
TypedURLSyncMetadataDatabase::~TypedURLSyncMetadataDatabase() {}
bool TypedURLSyncMetadataDatabase::GetAllSyncMetadata(
syncer::MetadataBatch* metadata_batch) {
DCHECK(metadata_batch);
if (!GetAllSyncEntityMetadata(metadata_batch)) {
return false;
}
sync_pb::ModelTypeState model_type_state;
if (GetModelTypeState(&model_type_state)) {
metadata_batch->SetModelTypeState(model_type_state);
} else {
return false;
}
return true;
}
bool TypedURLSyncMetadataDatabase::UpdateSyncMetadata(
syncer::ModelType model_type,
const std::string& storage_key,
const sync_pb::EntityMetadata& metadata) {
DCHECK_EQ(model_type, syncer::TYPED_URLS)
<< "Only the TYPED_URLS model type is supported";
int64_t storage_key_int = 0;
DCHECK_EQ(storage_key.size(), sizeof(storage_key_int));
base::ReadBigEndian(storage_key.data(), &storage_key_int);
// Make sure storage_key_int is set.
DCHECK_NE(storage_key_int, 0);
sql::Statement s(GetDB().GetUniqueStatement(
"INSERT OR REPLACE INTO typed_url_sync_metadata "
"(storage_key, value) VALUES(?, ?)"));
s.BindInt64(0, storage_key_int);
s.BindString(1, metadata.SerializeAsString());
return s.Run();
}
bool TypedURLSyncMetadataDatabase::ClearSyncMetadata(
syncer::ModelType model_type,
const std::string& storage_key) {
DCHECK_EQ(model_type, syncer::TYPED_URLS)
<< "Only the TYPED_URLS model type is supported";
int64_t storage_key_int = 0;
DCHECK_EQ(storage_key.size(), sizeof(storage_key_int));
base::ReadBigEndian(storage_key.data(), &storage_key_int);
// Make sure storage_key_int is set.
DCHECK_NE(storage_key_int, 0);
sql::Statement s(GetDB().GetUniqueStatement(
"DELETE FROM typed_url_sync_metadata WHERE storage_key=?"));
s.BindInt64(0, storage_key_int);
return s.Run();
}
bool TypedURLSyncMetadataDatabase::UpdateModelTypeState(
syncer::ModelType model_type,
const sync_pb::ModelTypeState& model_type_state) {
DCHECK_EQ(model_type, syncer::TYPED_URLS)
<< "Only the TYPED_URLS model type is supported";
DCHECK_GT(GetMetaTable().GetVersionNumber(), 0);
std::string serialized_state = model_type_state.SerializeAsString();
return GetMetaTable().SetValue(kTypedURLModelTypeStateKey, serialized_state);
}
bool TypedURLSyncMetadataDatabase::ClearModelTypeState(
syncer::ModelType model_type) {
DCHECK_EQ(model_type, syncer::TYPED_URLS)
<< "Only the TYPED_URLS model type is supported";
DCHECK_GT(GetMetaTable().GetVersionNumber(), 0);
return GetMetaTable().DeleteKey(kTypedURLModelTypeStateKey);
}
bool TypedURLSyncMetadataDatabase::InitSyncTable() {
if (!GetDB().DoesTableExist("typed_url_sync_metadata")) {
if (!GetDB().Execute("CREATE TABLE typed_url_sync_metadata ("
"storage_key INTEGER PRIMARY KEY NOT NULL,"
"value BLOB)")) {
NOTREACHED();
return false;
}
}
return true;
}
bool TypedURLSyncMetadataDatabase::GetAllSyncEntityMetadata(
syncer::MetadataBatch* metadata_batch) {
DCHECK(metadata_batch);
sql::Statement s(GetDB().GetUniqueStatement(
"SELECT storage_key, value FROM typed_url_sync_metadata"));
while (s.Step()) {
std::string storage_key(sizeof(URLID), 0);
base::WriteBigEndian<URLID>(&storage_key[0], s.ColumnInt64(0));
std::string serialized_metadata = s.ColumnString(1);
sync_pb::EntityMetadata entity_metadata;
if (entity_metadata.ParseFromString(serialized_metadata)) {
metadata_batch->AddMetadata(storage_key, entity_metadata);
} else {
DLOG(WARNING) << "Failed to deserialize TYPED_URLS model type "
"sync_pb::EntityMetadata.";
return false;
}
}
return true;
}
bool TypedURLSyncMetadataDatabase::GetModelTypeState(
sync_pb::ModelTypeState* state) {
DCHECK_GT(GetMetaTable().GetVersionNumber(), 0);
std::string serialized_state;
if (!GetMetaTable().GetValue(kTypedURLModelTypeStateKey, &serialized_state)) {
return true;
}
return state->ParseFromString(serialized_state);
}
} // namespace history
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