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// Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
#include <vespa/log/log.h>
#include <map>
#include <unordered_set>
namespace logdemon {
using SeenMap = std::unordered_set<std::string>;
// Mapping saying if a level should be forwarded or not
using ForwardMap = std::map<ns_log::Logger::LogLevel, bool>;
struct Metrics;
class LevelParser
{
private:
SeenMap _seenLevelMap;
public:
ns_log::Logger::LogLevel parseLevel(const char *level);
LevelParser() : _seenLevelMap() {}
};
/**
* Class used to forward log lines to the logserver via a one-way text protocol.
*/
class LegacyForwarder
{
private:
int _logserverfd;
Metrics &_metrics;
ForwardMap _forwardMap;
LevelParser _levelparser;
int _badLines;
const char *copystr(const char *b, const char *e) {
int len = e - b;
char *ret = new char[len+1];
strncpy(ret, b, len);
ret[len] = '\0';
return ret;
}
bool parseline(const char *linestart, const char *lineend);
public:
LegacyForwarder(Metrics &metrics);
~LegacyForwarder();
void forwardText(const char *text, int len);
void forwardLine(const char *line, const char *eol);
void setForwardMap(const ForwardMap & forwardMap) { _forwardMap = forwardMap; }
void setLogserverFD(int fd) { _logserverfd = fd; }
int getLogserverFD() { return _logserverfd; }
void sendMode();
int badLines() const { return _badLines; }
void resetBadLines() { _badLines = 0; }
};
}
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