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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>
#include "mongo/logger/encoder.h"
#include "mongo/logger/message_event.h"
#include "mongo/util/time_support.h"
namespace mongo {
namespace logger {
/**
* Encoder that writes log messages of the style that MongoDB writes to console and files.
*/
class MessageEventDetailsEncoder : public Encoder<MessageEventEphemeral> {
public:
typedef void (*DateFormatter)(std::ostream&, Date_t);
/**
* Sets the date formatter function for all instances of MessageEventDetailsEncoder.
*
* Only and always safe to call during single-threaded execution, as in during start-up
* intiailization.
*/
static void setDateFormatter(DateFormatter dateFormatter);
/**
* Gets the date formatter function in use by instances of MessageEventDetailsEncoder.
*
* Always safe to call.
*/
static DateFormatter getDateFormatter();
virtual ~MessageEventDetailsEncoder();
virtual std::ostream& encode(const MessageEventEphemeral& event, std::ostream& os);
};
/**
* Encoder that generates log messages suitable for syslog.
*/
class MessageEventWithContextEncoder : public Encoder<MessageEventEphemeral> {
public:
virtual ~MessageEventWithContextEncoder();
virtual std::ostream& encode(const MessageEventEphemeral& event, std::ostream& os);
};
/**
* Encoder that generates log messages containing only the raw text of the message.
*/
class MessageEventUnadornedEncoder : public Encoder<MessageEventEphemeral> {
public:
virtual ~MessageEventUnadornedEncoder();
virtual std::ostream& encode(const MessageEventEphemeral& event, std::ostream& os);
};
} // namespace logger
} // namespace mongo
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