org.onebusaway.container.rotation
Class TimeRotationStrategy

java.lang.Object
  org.onebusaway.container.rotation.TimeRotationStrategy

All Implemented Interfaces:

RotationStrategy

public class TimeRotationStrategy
extends Object
implements RotationStrategy

An implementation of RotationStrategy that writes output to file whose named is specified using a format processed using the the SimpleDateFormat class. This allows one to get standard time-based file rotation with whatever time granularity and formatting you may desire.

Author:

bdferris

Constructor Summary

TimeRotationStrategy(String format)

Method Summary

Writer	getFirstWriter()
Writer	getNextWriter(Writer writer, int charactersWritten) Called to get the next output writer when a call is made to RotationWriter.flush().

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

TimeRotationStrategy

public TimeRotationStrategy(String format)

Method Detail

getFirstWriter

public Writer getFirstWriter()
                      throws IOException

Specified by:

getFirstWriter in interface RotationStrategy

Returns:

the Writer that will be used for initial output

Throws:

IOException

getNextWriter

public Writer getNextWriter(Writer writer,
                            int charactersWritten)
                     throws IOException

Description copied from interface: RotationStrategy

Called to get the next output writer when a call is made to RotationWriter.flush(). The current writer is provided as a parameter, so if no rotation should occur, just return the current writer.

Specified by:

getNextWriter in interface RotationStrategy

Parameters:

writer - the current output writer

charactersWritten - the number of characters written to the current writer

Returns:

the writer to output to in the future

Throws:

IOException