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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 "forwarder.h"
#include <vespa/vespalib/stllike/string.h>
#include <memory>
namespace logdemon {
struct Metrics;
/**
* Class used to forward log lines to the logserver via a one-way text protocol.
*/
class LegacyForwarder : public Forwarder {
private:
Metrics &_metrics;
int _logserver_fd;
ForwardMap _forward_filter;
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;
}
void connect_to_logserver(const vespalib::string& logserver_host, int logserver_port);
void connect_to_dev_null();
bool parseLine(std::string_view line);
void forwardText(const char *text, int len);
LegacyForwarder(Metrics &metrics, const ForwardMap& forward_filter);
public:
using UP = std::unique_ptr<LegacyForwarder>;
static LegacyForwarder::UP to_logserver(Metrics& metrics, const ForwardMap& forward_filter,
const vespalib::string& logserver_host, int logserver_port);
static LegacyForwarder::UP to_dev_null(Metrics& metrics);
static LegacyForwarder::UP to_open_file(Metrics& metrics, const ForwardMap& forward_filter, int file_desc);
~LegacyForwarder();
// Implements Forwarder
void forwardLine(std::string_view line) override;
void flush() override {}
void sendMode() override;
int badLines() const override { return _badLines; }
void resetBadLines() override { _badLines = 0; }
};
}
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