net.dpml.transit.monitor
Interface CacheMonitor

All Superinterfaces:

Monitor

All Known Implementing Classes:

CacheMonitorAdapter, CacheMonitorRouter

public interface CacheMonitor

extends Monitor

A monitor of a Transit cache activity.

The CacheMonitor must be thread safe.

Version:

1.0.1

Author:

Digital Product Meta Library

See Also:

Monitor

Field Summary

Fields inherited from interface net.dpml.transit.monitor.Monitor

BOOTSTRAP_DEBUG_KEY

Method Summary

void	addedToLocalCache(URL resource, File localFile) Notify the monitor that an artifact has been added to the local cache.
void	failedDownload(Artifact artifact) Notify the monitor of a failed download attempt.
void	failedDownloadFromHost(String host, Artifact artifact, Throwable cause) Notify the monitor of a failed download attempt relative to an identified host.
void	removedFromLocalCache(URL resource, File localFile) Notify the monitor that an artifact has been removed from the local cache.
void	resourceRequested(Artifact artifact) Notify the monitor that an artifact has been requested.
void	updatedLocalCache(URL resource, File localFile) Notify the monitor that an artifact in the local cache has been updated.

Method Detail

resourceRequested

public void resourceRequested(Artifact artifact)

Notify the monitor that an artifact has been requested.

Parameters:

artifact - the requested artifact

addedToLocalCache

public void addedToLocalCache(URL resource,
                              File localFile)

Notify the monitor that an artifact has been added to the local cache.

Parameters:

resource - the url of the resource added to the local cache

localFile - the local file resident in the cache

updatedLocalCache

public void updatedLocalCache(URL resource,
                              File localFile)

Notify the monitor that an artifact in the local cache has been updated.

Parameters:

resource - the url of the resource updating the local cache

localFile - the local file that has been updated

removedFromLocalCache

public void removedFromLocalCache(URL resource,
                                  File localFile)

Notify the monitor that an artifact has been removed from the local cache.

Parameters:

resource - the url of the resource removed from the local cache

localFile - the local file removed from the cache

failedDownloadFromHost

public void failedDownloadFromHost(String host,
                                   Artifact artifact,
                                   Throwable cause)

Notify the monitor of a failed download attempt relative to an identified host.

Parameters:

host - the host raising the fail status

artifact - the requested artifact

cause - the exception causing the failure

failedDownload

public void failedDownload(Artifact artifact)

Notify the monitor of a failed download attempt.

Parameters:

artifact - the requested artifact