/*
 # Copyright (c) 2009 - OpenSLX Project, Computer Center University of Freiburg
 #
 # This program is free software distributed under the GPL version 2.
 # See http://openslx.org/COPYING
 #
 # If you have any feedback please consult http://openslx.org/feedback and
 # send your suggestions, praise, or complaints to feedback@openslx.org
 #
 # General information about OpenSLX can be found at http://openslx.org/
 # --------------------------------------------------------------------------
 # pvsSyslog.h:
 #  - Send output to syslog or to a file - interface
 # --------------------------------------------------------------------------
 */

#ifndef PVSSYSLOG_H_
#define PVSSYSLOG_H_

#include <QObject>
#include <QString>

/**
 * Listen on a socket or a pipe and redirect input lines to a child class.
 */
class PVSLogRedirector : public QObject
{
	Q_OBJECT
public slots:
	void inputAvailableOn(int fd);

protected:
	virtual void doRedirectInput(QString const& line) = 0;

private:
	QByteArray _buf;
};

/**
 * Redirect log lines to a Unix syslog service.
 */
class PVSSyslogRedirector : public PVSLogRedirector
{
public:
	PVSSyslogRedirector();
	virtual ~PVSSyslogRedirector();

protected:
	void doRedirectInput(QString const& line);
};

class QFile;
class QTextStream;

/**
 * Redirect log lines to a file.
 */
class PVSLogfileRedirector : public PVSLogRedirector
{
public:
	PVSLogfileRedirector(QString const& filename);
	virtual ~PVSLogfileRedirector();

protected:
	void doRedirectInput(QString const& line);

private:
	QFile* _file;
	QTextStream* _stream;
};

#endif /* PVSSYSLOG_H_ */