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/* Copyright 2013 10gen 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.
*/
#pragma once
#include <iosfwd>
namespace mongo {
namespace logger {
/**
* Interface for objects that encode Events to std::ostreams.
*
* Most appender implementations write to streams, and Encoders represent the process of
* encoding events into streams.
*/
template <typename Event>
class Encoder {
public:
virtual ~Encoder() {}
virtual std::ostream& encode(const Event& event, std::ostream& os) = 0;
};
} // namespace logger
} // nnamspace mongo
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