syslogdefs.java

Java版syslog实现

package com.ice.syslog;

import java.lang.*;
import java.text.*;
import java.util.*;


public class
SyslogDefs
	{
	//
	// SyslogLvl
	//
	public static final int LOG_EMERG	= 0; /* system is unusable */
	public static final int LOG_ALERT	= 1; /* action must be taken immediately */
	public static final int LOG_CRIT	= 2; /* critical conditions */
	public static final int LOG_ERR		= 3; /* error conditions */
	public static final int LOG_WARNING	= 4; /* warning conditions */
	public static final int LOG_NOTICE	= 5; /* normal but significant condition */
	public static final int LOG_INFO	= 6; /* informational */
	public static final int LOG_DEBUG	= 7; /* debug-level messages */
	public static final int LOG_ALL		= 8; /* '*' in config, all levels */
	
	//
	// SyslogFac
	//
	public static final int LOG_KERN	= 0; /* kernel messages */
	public static final int LOG_USER	= 1; /* random user-level messages */
	public static final int LOG_MAIL	= 2; /* mail system */
	public static final int LOG_DAEMON	= 3; /* system daemons */
	public static final int LOG_AUTH	= 4; /* security/authorization messages */
	public static final int LOG_SYSLOG	= 5; /* messages generated internally by syslogd */
	public static final int LOG_LPR		= 6; /* line printer subsystem */
	public static final int LOG_NEWS	= 7; /* network news subsystem */
	public static final int LOG_UUCP	= 8; /* UUCP subsystem */
	public static final int LOG_CRON	= 9; /* clock daemon */

        /* other codes through 15 reserved for system use */

	public static final int LOG_LOCAL0	= 16; /* reserved for local use */
	public static final int LOG_LOCAL1	= 17; /* reserved for local use */
	public static final int LOG_LOCAL2	= 18; /* reserved for local use */
	public static final int LOG_LOCAL3	= 19; /* reserved for local use */
	public static final int LOG_LOCAL4	= 20; /* reserved for local use */
	public static final int LOG_LOCAL5	= 21; /* reserved for local use */
	public static final int LOG_LOCAL6	= 22; /* reserved for local use */
	public static final int LOG_LOCAL7	= 23; /* reserved for local use */
	
	public static final int LOG_NFACILITIES	= 24;	/* current number of facilities */

	public static final int LOG_PRIMASK	= 0x07;		/* mask to extract priority part (internal) */			
	public static final int LOG_FACMASK	= 0x03F8;	/* mask to extract facility part */
	public static final int INTERNAL_NOPRI = 0x10;	/* the "no priority" priority */
	
	public static final int LOG_PID		= 0x01;	/* log the pid with each message */
	public static final int LOG_CONS	= 0x02;	/* log on the console if errors in sending */
	public static final int LOG_ODELAY	= 0x04;	/* delay open until first syslog() (default) */
	public static final int LOG_NDELAY	= 0x08;	/* don't delay open */
	public static final int LOG_NOWAIT	= 0x10;	/* don't wait for console forks: DEPRECATED */
	public static final int LOG_PERROR	= 0x20;	/* log to stderr as well */

	public static final int	DEFAULT_PORT = 514;


	static private Hashtable	facHash;
	static private Hashtable	priHash;


	static
		{
		facHash = new Hashtable( 20 );

		facHash.put( "KERN",		new Integer(SyslogDefs.LOG_KERN) );
		facHash.put( "KERNEL",		new Integer(SyslogDefs.LOG_KERN) );
		facHash.put( "USER",		new Integer(SyslogDefs.LOG_USER) );
		facHash.put( "MAIL",		new Integer(SyslogDefs.LOG_MAIL) );
		facHash.put( "DAEMON",		new Integer(SyslogDefs.LOG_DAEMON) );
		facHash.put( "AUTH",		new Integer(SyslogDefs.LOG_AUTH) );
		facHash.put( "SYSLOG",		new Integer(SyslogDefs.LOG_SYSLOG) );
		facHash.put( "LPR",			new Integer(SyslogDefs.LOG_LPR) );
		facHash.put( "NEWS",		new Integer(SyslogDefs.LOG_NEWS) );
		facHash.put( "UUCP",		new Integer(SyslogDefs.LOG_UUCP) );
		facHash.put( "CRON",		new Integer(SyslogDefs.LOG_CRON) );
		facHash.put( "LOCAL0",		new Integer(SyslogDefs.LOG_LOCAL0) );
		facHash.put( "LOCAL1",		new Integer(SyslogDefs.LOG_LOCAL1) );
		facHash.put( "LOCAL2",		new Integer(SyslogDefs.LOG_LOCAL2) );
		facHash.put( "LOCAL3",		new Integer(SyslogDefs.LOG_LOCAL3) );
		facHash.put( "LOCAL4",		new Integer(SyslogDefs.LOG_LOCAL4) );
		facHash.put( "LOCAL5",		new Integer(SyslogDefs.LOG_LOCAL5) );
		facHash.put( "LOCAL6",		new Integer(SyslogDefs.LOG_LOCAL6) );
		facHash.put( "LOCAL7",		new Integer(SyslogDefs.LOG_LOCAL7) );

		priHash = new Hashtable( 20 );

		priHash.put( "EMERG",			new Integer(SyslogDefs.LOG_EMERG) );
		priHash.put( "EMERGENCY",		new Integer(SyslogDefs.LOG_EMERG) );
		priHash.put( "LOG_EMERG",		new Integer(SyslogDefs.LOG_EMERG) );
		priHash.put( "ALERT",			new Integer(SyslogDefs.LOG_ALERT) );
		priHash.put( "LOG_ALERT",		new Integer(SyslogDefs.LOG_ALERT) );
		priHash.put( "CRIT",			new Integer(SyslogDefs.LOG_CRIT) );
		priHash.put( "CRITICAL",		new Integer(SyslogDefs.LOG_CRIT) );
		priHash.put( "LOG_CRIT",		new Integer(SyslogDefs.LOG_CRIT) );
		priHash.put( "ERR",				new Integer(SyslogDefs.LOG_ERR) );
		priHash.put( "ERROR",			new Integer(SyslogDefs.LOG_ERR) );
		priHash.put( "LOG_ERR",			new Integer(SyslogDefs.LOG_ERR) );
		priHash.put( "WARNING",			new Integer(SyslogDefs.LOG_WARNING) );
		priHash.put( "LOG_WARNING",		new Integer(SyslogDefs.LOG_WARNING) );
		priHash.put( "NOTICE",			new Integer(SyslogDefs.LOG_NOTICE) );
		priHash.put( "LOG_NOTICE",		new Integer(SyslogDefs.LOG_NOTICE) );
		priHash.put( "INFO",			new Integer(SyslogDefs.LOG_INFO) );
		priHash.put( "LOG_INFO",		new Integer(SyslogDefs.LOG_INFO) );
		priHash.put( "DEBUG",			new Integer(SyslogDefs.LOG_DEBUG) );
		priHash.put( "LOG_DEBUG",		new Integer(SyslogDefs.LOG_DEBUG) );
		}


	static public int
	extractFacility( int code )
		{
		return ( (code & SyslogDefs.LOG_FACMASK) >> 3 );
		}

	static public int
	extractPriority( int code )
		{
		return ( code & SyslogDefs.LOG_PRIMASK );
		}

	static public int
	computeCode( int facility, int priority )
		{
		return ( (facility << 3) | priority );
		}

	static public String
	getPriorityName( int level )
		{
		switch ( level )
			{
			case SyslogDefs.LOG_EMERG:		return "panic";
			case SyslogDefs.LOG_ALERT:		return "alert";
			case SyslogDefs.LOG_CRIT:		return "critical";
			case SyslogDefs.LOG_ERR:		return "error";
			case SyslogDefs.LOG_WARNING:	return "warning";
			case SyslogDefs.LOG_NOTICE:		return "notice";
			case SyslogDefs.LOG_INFO:		return "info";
			case SyslogDefs.LOG_DEBUG:		return "debug";
			}

		return "unknown level='" + level + "'";
		}
	
	static public String
	getFacilityName( int facility )
		{
		switch ( facility )
			{
			case SyslogDefs.LOG_KERN:		return "kernel";
			case SyslogDefs.LOG_USER:		return "user";
			case SyslogDefs.LOG_MAIL:		return "mail";
			case SyslogDefs.LOG_DAEMON:		return "daemon";
			case SyslogDefs.LOG_AUTH:		return "auth";
			case SyslogDefs.LOG_SYSLOG:		return "syslog";
			case SyslogDefs.LOG_LPR:		return "lpr";
			case SyslogDefs.LOG_NEWS:		return "news";
			case SyslogDefs.LOG_UUCP:		return "uucp";
			case SyslogDefs.LOG_CRON:		return "cron";

			case SyslogDefs.LOG_LOCAL0:		return "local0";
			case SyslogDefs.LOG_LOCAL1:		return "local1";
			case SyslogDefs.LOG_LOCAL2:		return "local2";
			case SyslogDefs.LOG_LOCAL3:		return "local3";
			case SyslogDefs.LOG_LOCAL4:		return "local4";
			case SyslogDefs.LOG_LOCAL5:		return "local5";
			case SyslogDefs.LOG_LOCAL6:		return "local6";
			case SyslogDefs.LOG_LOCAL7:		return "local7";
			}

		return "unknown facility='" + facility + "'";
		}

	static public int
	getPriority( String priority )
		throws ParseException
		{
		String priKey = priority.toUpperCase();
		Integer result = (Integer)
			SyslogDefs.priHash.get( priKey );

		if ( result == null )
			{
			throw new ParseException
				( "unknown priority '" + priority + "'", 0 );
			}

		return result.intValue();
		}

	static public int
	getFacility( String facility )
		throws ParseException
		{
		String facKey = facility.toUpperCase();
		Integer result = (Integer)
			SyslogDefs.facHash.get( facKey );

		if ( result == null )
			{
			throw new ParseException
				( "unknown facility '" + facility + "'", 0 );
			}

		return result.intValue();
		}

	}