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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.
//
// Definition of ModelTypePayloadMap and various utility functions.
#ifndef SYNC_SYNCABLE_MODEL_TYPE_PAYLOAD_MAP_H_
#define SYNC_SYNCABLE_MODEL_TYPE_PAYLOAD_MAP_H_
#pragma once
#include <map>
#include <string>
#include "sync/engine/model_safe_worker.h"
#include "sync/syncable/model_type.h"
namespace base {
class DictionaryValue;
}
namespace syncable {
// A container that contains a set of datatypes with possible string
// payloads.
typedef std::map<ModelType, std::string> ModelTypePayloadMap;
// Helper functions for building ModelTypePayloadMaps.
// Make a TypePayloadMap from all the types in a ModelTypeSet using a
// default payload.
ModelTypePayloadMap ModelTypePayloadMapFromEnumSet(
ModelTypeSet model_types, const std::string& payload);
ModelTypeSet ModelTypePayloadMapToEnumSet(
const ModelTypePayloadMap& payload_map);
// Make a TypePayloadMap for all the enabled types in a
// ModelSafeRoutingInfo using a default payload.
ModelTypePayloadMap ModelTypePayloadMapFromRoutingInfo(
const browser_sync::ModelSafeRoutingInfo& routes,
const std::string& payload);
std::string ModelTypePayloadMapToString(
const ModelTypePayloadMap& model_type_payloads);
// Caller takes ownership of the returned dictionary.
base::DictionaryValue* ModelTypePayloadMapToValue(
const ModelTypePayloadMap& model_type_payloads);
// Coalesce |update| into |original|, overwriting only when |update| has
// a non-empty payload.
void CoalescePayloads(ModelTypePayloadMap* original,
const ModelTypePayloadMap& update);
void PurgeStalePayload(ModelTypePayloadMap* original,
const browser_sync::ModelSafeRoutingInfo& routing_info);
} // namespace syncable
#endif // SYNC_SYNCABLE_MODEL_TYPE_PAYLOAD_MAP_H_
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