hal/src/zutil/log/StandardLogFormatter.java
2010-04-15 20:52:34 +00:00

110 lines
3.1 KiB
Java

package zutil.log;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.HashMap;
import java.util.logging.Level;
import java.util.regex.Pattern;
public class StandardLogFormatter implements LogFormatter{
// The split pattern where the
private static final Pattern splitter = Pattern.compile("\n");
// the stream should print time stamp
private boolean timeStamp = true;
//The time stamp style
private SimpleDateFormat dateFormatter = new SimpleDateFormat("HH:mm:ss ");
// If displaying class names are enabled
private boolean className = true;
// Specifies the max length of the longest class name
private int max_class_name = 0;
// Cache for the class padding
private static HashMap<String,String> padd_cache = new HashMap<String,String>();
// Date temp file
private Date date = new Date();
public String format(String source, Level level, String msg) {
StringBuilder data = new StringBuilder();
if( timeStamp ){
date.setTime( System.currentTimeMillis() );
data.append( dateFormatter.format(date) );
}
switch( level.intValue() ){
case /* SEVERE */ 1000: data.append("SEVERE "); break;
case /* WARNING */ 900 : data.append("WARNING "); break;
case /* INFO */ 800 : data.append("INFO "); break;
case /* CONFIG */ 700 : data.append("CONFIG "); break;
case /* FINE */ 500 : data.append("FINE "); break;
case /* FINER */ 400 : data.append("FINER "); break;
case /* FINEST */ 300 : data.append("FINEST "); break;
}
if( className ){
data.append( paddSourceName(source) );
}
data.append( ": " );
StringBuffer ret = new StringBuffer();
String[] array = splitter.split( msg );
for( int i=0; i<array.length ;++i ){
if( i!=0 )
ret.append( '\n' );
if( data.length() > 0 )
ret.append( data );
ret.append( array[i] );
}
ret.append( '\n' );
return ret.toString();
}
/**
* If the formatter should add a time stamp in front of the log message
*
* @param enable set to True to activate time stamp
*/
public void enableTimeStamp(boolean enable){
timeStamp = enable;
}
/**
* The DateFormat to print in the time stamp
*
* @param ts is the String to send to SimpleDateFormat
*/
public void setTimeStamp(String ts){
dateFormatter = new SimpleDateFormat(ts);
}
/**
* If the formatter should add the class/source name in front of the log message
*
* @param enable set to True to activate class/source name
*/
public void enableSourceName(boolean enable){
className = enable;
}
/**
* @return the Class name
*/
private String paddSourceName(String source){
String tmp = padd_cache.get(source);
if( tmp != null )
return tmp;
if( source.length() > max_class_name )
max_class_name = source.length();
StringBuilder sb = new StringBuilder( source );
for( int i=source.length(); i<max_class_name; ++i ) {
sb.append( ' ' );
}
tmp = sb.toString();
padd_cache.put(source, tmp);
return tmp;
}
}