net.sourceforge.groboutils.codecoverage.v2.logger
Class CacheDirChannelLogger

java.lang.Object
  net.sourceforge.groboutils.codecoverage.v2.logger.DirectoryChannelLogger
      net.sourceforge.groboutils.codecoverage.v2.logger.CacheDirChannelLogger

All Implemented Interfaces:

HashCache.ObjectManager, IChannelLogger, java.lang.Runnable

public class CacheDirChannelLogger

extends DirectoryChannelLogger

implements java.lang.Runnable, HashCache.ObjectManager

This is the same as the DirectoryChannelLogger, except that the open files are cached for access.

Besides some other issues with this (see open bugs), it can cause issues if multiple loggers are trying to access the same file. This could happen if the CoverageLogger class is loaded by different class loaders; as a result, multiple CoverageLogger instances will be created, allowing for multiple channel loggers to write to the same area.

Since:

May 9, 2003

Version:

$Date: 2004/07/07 09:39:10 $

Author:

Matt Albrecht groboclown@users.sourceforge.net

Field Summary

Fields inherited from class net.sourceforge.groboutils.codecoverage.v2.logger.DirectoryChannelLogger

baseDir, CLASS_LOG_EXTENTION

Constructor Summary

CacheDirChannelLogger(java.io.File baseDir, int cacheSize)

Method Summary

protected void	addShutdownHook()
void	cleanUpObject(java.lang.Object key, java.lang.Object obj) Called by HashCache when the given object is being removed from the cache.
void	cover(java.lang.String classSignature, short methodIndex, short markIndex) Records a coverage of a marked bytecode instruction.
java.lang.Object	createObject(java.lang.Object key) Called by the HashCache
protected void	finalize()
void	run() Called when the shutdown hook is called.

Methods inherited from class net.sourceforge.groboutils.codecoverage.v2.logger.DirectoryChannelLogger

createCoverString, getClassFile

Methods inherited from class java.lang.Object

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

Constructor Detail

CacheDirChannelLogger

public CacheDirChannelLogger(java.io.File baseDir,
                             int cacheSize)

Method Detail

cover

public void cover(java.lang.String classSignature,
                  short methodIndex,
                  short markIndex)

Records a coverage of a marked bytecode instruction. This method should never throw an exception.

Specified by:

cover in interface IChannelLogger

Overrides:

cover in class DirectoryChannelLogger

Parameters:

classSignature - a signature of the class file being covered. this signature includes the fully-qualified name of the class, along with a checksum to uniquely identify it.

methodIndex - index for a method within the class. The meta-data store will know how to translate the index to a method signature.

markIndex - the index of the bytecode instruction mark for this particular channel.

run

public void run()

Called when the shutdown hook is called.

Specified by:

run in interface java.lang.Runnable

createObject

public java.lang.Object createObject(java.lang.Object key)

Called by the HashCache

Specified by:

createObject in interface HashCache.ObjectManager

Parameters:

key - the key associated with the created object.

Returns:

the newly created object

cleanUpObject

public void cleanUpObject(java.lang.Object key,
                          java.lang.Object obj)

Called by HashCache when the given object is being removed from the cache.

Specified by:

cleanUpObject in interface HashCache.ObjectManager

Parameters:

key - the key associated with the object.

obj - the object being cleaned up.

finalize

protected void finalize()
                 throws java.lang.Throwable

Throws:

java.lang.Throwable

addShutdownHook

protected void addShutdownHook()