org.productivity.java.syslog4j.impl.message.modifier.text.StringCaseSyslogMessageModifier Maven / Gradle / Ivy

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Syslog4j provides client and server implementations of the BSD Syslog protocol (RFC 3164) and the draft "structured syslog" protocol (RFC Draft).

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package org.productivity.java.syslog4j.impl.message.modifier.text;

import org.productivity.java.syslog4j.SyslogConfigIF;
import org.productivity.java.syslog4j.SyslogIF;
import org.productivity.java.syslog4j.SyslogMessageModifierIF;
import org.productivity.java.syslog4j.SyslogRuntimeException;

/**
* StringCaseSyslogMessageModifier is an implementation of SyslogMessageModifierIF
* that provides support for shifting a Syslog message to all upper case or all
* lower case.
* 
* Syslog4j is licensed under the Lesser GNU Public License v2.1.  A copy
* of the LGPL license is available in the META-INF folder in all
* distributions of Syslog4j and in the base directory of the "doc" ZIP.
* 
* @author <[email protected]>
* @version $Id: StringCaseSyslogMessageModifier.java,v 1.1 2008/11/12 14:30:53 cvs Exp $
*/
public class StringCaseSyslogMessageModifier implements SyslogMessageModifierIF {
	private static final long serialVersionUID = 8383234811585957460L;
	
	public static final byte LOWER_CASE = 0; 
	public static final byte UPPER_CASE = 1; 
	
	public static final StringCaseSyslogMessageModifier LOWER = new StringCaseSyslogMessageModifier(LOWER_CASE);
	public static final StringCaseSyslogMessageModifier UPPER = new StringCaseSyslogMessageModifier(UPPER_CASE);
	
	protected byte stringCase = LOWER_CASE;  
	
	public StringCaseSyslogMessageModifier(byte stringCase) {
		this.stringCase = stringCase;
		
		if (stringCase < LOWER_CASE || stringCase > UPPER_CASE) {
			throw new SyslogRuntimeException("stringCase must be LOWER_CASE (0) or UPPER_CASE (1)");
		}
	}

	public String modify(SyslogIF syslog, SyslogConfigIF syslogConfig, int facility, int level, String message) {
		String _message = message;
		
		if (message != null) {
			if (this.stringCase == LOWER_CASE) {
				_message = _message.toLowerCase();
				
			} else if (this.stringCase == UPPER_CASE) {
				_message = _message.toUpperCase();
			}
		}
		
		return _message;
	}
}