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// Copyright (c) 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.
//
// Wraps PrefService in an InvalidationStateTracker to allow SyncNotifiers
// to use PrefService as persistence for invalidation state. It is not thread
// safe, and lives on the UI thread.
#ifndef CHROME_BROWSER_INVALIDATION_INVALIDATOR_STORAGE_H_
#define CHROME_BROWSER_INVALIDATION_INVALIDATOR_STORAGE_H_
#include "base/basictypes.h"
#include "base/gtest_prod_util.h"
#include "base/memory/weak_ptr.h"
#include "base/threading/thread_checker.h"
#include "sync/notifier/invalidation_state_tracker.h"
class PrefService;
namespace base {
class DictionaryValue;
class ListValue;
}
namespace user_prefs {
class PrefRegistrySyncable;
}
namespace invalidation {
class InvalidatorStorage : public base::SupportsWeakPtr<InvalidatorStorage>,
public syncer::InvalidationStateTracker {
public:
static void RegisterProfilePrefs(user_prefs::PrefRegistrySyncable* registry);
// |pref_service| may be NULL (for unit tests), but in that case no setter
// methods should be called. Does not own |pref_service|.
explicit InvalidatorStorage(PrefService* pref_service);
virtual ~InvalidatorStorage();
// InvalidationStateTracker implementation.
virtual syncer::InvalidationStateMap GetAllInvalidationStates() const
OVERRIDE;
virtual void SetMaxVersionAndPayload(const invalidation::ObjectId& id,
int64 max_version,
const std::string& payload) OVERRIDE;
virtual void Forget(const syncer::ObjectIdSet& ids) OVERRIDE;
virtual void SetInvalidatorClientId(const std::string& client_id) OVERRIDE;
virtual std::string GetInvalidatorClientId() const OVERRIDE;
virtual void SetBootstrapData(const std::string& data) OVERRIDE;
virtual std::string GetBootstrapData() const OVERRIDE;
virtual void Clear() OVERRIDE;
virtual void GenerateAckHandles(
const syncer::ObjectIdSet& ids,
const scoped_refptr<base::TaskRunner>& task_runner,
base::Callback<void(const syncer::AckHandleMap&)> callback) OVERRIDE;
virtual void Acknowledge(const invalidation::ObjectId& id,
const syncer::AckHandle& ack_handle) OVERRIDE;
private:
FRIEND_TEST_ALL_PREFIXES(InvalidatorStorageTest, SerializeEmptyMap);
FRIEND_TEST_ALL_PREFIXES(InvalidatorStorageTest,
DeserializeFromListOutOfRange);
FRIEND_TEST_ALL_PREFIXES(InvalidatorStorageTest,
DeserializeFromListInvalidFormat);
FRIEND_TEST_ALL_PREFIXES(InvalidatorStorageTest,
DeserializeFromListWithDuplicates);
FRIEND_TEST_ALL_PREFIXES(InvalidatorStorageTest,
DeserializeFromEmptyList);
FRIEND_TEST_ALL_PREFIXES(InvalidatorStorageTest, DeserializeFromListBasic);
FRIEND_TEST_ALL_PREFIXES(InvalidatorStorageTest,
DeserializeFromListMissingOptionalValues);
FRIEND_TEST_ALL_PREFIXES(InvalidatorStorageTest, DeserializeMapOutOfRange);
FRIEND_TEST_ALL_PREFIXES(InvalidatorStorageTest, DeserializeMapInvalidFormat);
FRIEND_TEST_ALL_PREFIXES(InvalidatorStorageTest,
DeserializeMapEmptyDictionary);
FRIEND_TEST_ALL_PREFIXES(InvalidatorStorageTest, DeserializeMapBasic);
FRIEND_TEST_ALL_PREFIXES(InvalidatorStorageTest, MigrateLegacyPreferences);
base::ThreadChecker thread_checker_;
// Helpers to convert between InvalidationStateMap <--> ListValue.
static void DeserializeFromList(
const base::ListValue& state_map_list,
syncer::InvalidationStateMap* state_map);
static void SerializeToList(
const syncer::InvalidationStateMap& state_map,
base::ListValue* state_map_list);
// Code for migrating from old MaxInvalidationVersions pref, which was a map
// from sync types to max invalidation versions.
void MigrateMaxInvalidationVersionsPref();
static void DeserializeMap(const base::DictionaryValue* max_versions_dict,
syncer::InvalidationStateMap* map);
// May be NULL.
PrefService* const pref_service_;
DISALLOW_COPY_AND_ASSIGN(InvalidatorStorage);
};
} // namespace invalidation
#endif // CHROME_BROWSER_INVALIDATION_INVALIDATOR_STORAGE_H_
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