Package org.openjena.atlas.logging.java

Source Code of org.openjena.atlas.logging.java.ConsoleHandlerStdout

/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements.  See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership.  The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License.  You may obtain a copy of the License at
*
*     http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/

package org.openjena.atlas.logging.java;

import java.util.logging.Formatter ;
import java.util.logging.Handler ;
import java.util.logging.LogManager ;
import java.util.logging.LogRecord ;


public class ConsoleHandlerStdout extends Handler
{

    private void configure()
    {
        LogManager manager = LogManager.getLogManager();
        String cname = getClass().getName();
       
        String cls = manager.getProperty(cname+".formatter") ;
        Formatter fmt = null ;
       
        try {
            if (cls != null) {
                Class<?> clz = ClassLoader.getSystemClassLoader().loadClass(cls);
                fmt = (Formatter) clz.newInstance();
            }
        } catch (Exception ex) {
            // We got one of a variety of exceptions in creating the
            // class or creating an instance.
            // Drop through.
        }
        if ( fmt == null )
            fmt = new TextFormatter() ;
        setFormatter(fmt) ;
    }
   
    public ConsoleHandlerStdout()
    {
        configure() ;
    }
   
    @Override
    public void close() throws SecurityException
    {}

    @Override
    public void flush()
    { System.out.flush(); }

    @Override
    public void publish(LogRecord record)
    {
        if ( ! super.isLoggable(record) )
            return ;
        String s = getFormatter().format(record) ;
        System.out.print(s) ;
    }

}
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