ConfigurationProcessor.hpp

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/*
 * Copyright 2014 CyberVision, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#ifndef CONFIGURATION_PROCESSOR_HPP_
#define CONFIGURATION_PROCESSOR_HPP_

#include "kaa/KaaDefaults.hpp"

#ifdef KAA_USE_CONFIGURATION

#include <cstdint>
#include <memory>

#include "kaa/observer/KaaObservable.hpp"
#include "kaa/configuration/IConfigurationProcessor.hpp"

namespace kaa {

class ConfigurationProcessor : public IConfigurationProcessor {
public:
    typedef avro::ValidSchema Schema;

    ConfigurationProcessor() {}
    ConfigurationProcessor(std::shared_ptr<avro::ValidSchema> schema) { schema_ = schema; }
    ~ConfigurationProcessor() { schema_.reset(); }

    void processConfigurationData(const std::uint8_t *data, std::size_t dataLength, bool fullResync);

    void subscribeForUpdates(IGenericDeltaReceiver &receiver);
    void unsubscribeFromUpdates(IGenericDeltaReceiver &receiver);

    void addOnProcessedObserver(IConfigurationProcessedObserver &observer);
    void removeOnProcessedObserver(IConfigurationProcessedObserver &observer);

    void onSchemaUpdated(std::shared_ptr<avro::ValidSchema> schema);

private:
    KAA_R_MUTEX_DECLARE(confProcessorMutex_);

    KaaObservable<void (int, const avro::GenericDatum &, bool), IGenericDeltaReceiver *> deltaReceivers_;
    KaaObservable<void (), IConfigurationProcessedObserver *> onProcessedObservers_;

    std::shared_ptr<Schema>                                       schema_;
};

} // namespace kaa

#endif

#endif /* CONFIGURATION_PROCESSOR_HPP_ */