package org.webslinger.io;

 import java.io.IOException;

 import java.io.Writer;

 import java.util.logging.ErrorManager;

 import java.util.logging.Filter;

 import java.util.logging.Formatter;

 import java.util.logging.Handler;

 import java.util.logging.LogRecord;

 public class RollingLoggerHandler extends Handler {

     protected boolean closed;

     protected final RollingWriterFactory factory;

     public RollingLoggerHandler() {

         this(new ThreadLocalRollingWriterFactory());

     }

     public RollingLoggerHandler(RollingWriterFactory factory) {

         this.factory = factory;

     }

     public void publish(LogRecord record) {

         if (closed) {

             reportError("Can't append to a closed handler.", null, ErrorManager.GENERIC_FAILURE);

             return;

         }

         Formatter formatter = getFormatter();

         if (formatter == null) {

             reportError("No formatter set.", null, ErrorManager.GENERIC_FAILURE);

             return;

         }

         Filter filter = getFilter();

         if (filter == null) {

             reportError("No filter set.", null, ErrorManager.GENERIC_FAILURE);

             return;

         }

         if (!filter.isLoggable(record)) return;

         RollingWriter rollingWriter;

         synchronized (this) {

             rollingWriter = factory.getRollingWriter(record.getLoggerName());

         }

         if (rollingWriter == null) return;

         Writer writer;

         try {

             synchronized (rollingWriter) {

                 writer = rollingWriter.getWriter();

             }

             synchronized (writer) {

                 writer.write(formatter.format(record));

                 try {

                     writer.flush();

                 } catch (IOException e) {

                     reportError("flushing", e, ErrorManager.FLUSH_FAILURE);

                 }

             }

         } catch (IOException e) {

             reportError("writing", e, ErrorManager.WRITE_FAILURE);

         }

     }

     public void close() {

         closed = true;

     }

     public void flush() {

     }

 }