org.duracloud.sync.mgmt

Class ChangedList

java.lang.Object

org.duracloud.sync.mgmt.ChangedList

public class ChangedList
extends Object

The list of files which have been changed.

Method Summary

Methods

Modifier and Type	Method and Description
protected void	addChangedFile(ChangedFile changedFile)
void	addChangedFile(File changedFile) Adds a changed file to the list of items to be processed.
void	clear() Removes all files from the changed list.
ChangedFile	getChangedFile() Retrieves a changed file for processing and removes it from the list.
static ChangedList	getInstance()
int	getListSize() Gets the current size of the changed list
long	getVersion()
List<File>	peek(int maxFiles)
long	persist(File persistFile) Writes out the current state of the ChangeList to the given file.
void	restore(File persistFile) Restores the state of the ChangedList using the given backup file

Methods inherited from class java.lang.Object

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

Method Detail

getInstance

public static ChangedList getInstance()

addChangedFile

public void addChangedFile(File changedFile)

Adds a changed file to the list of items to be processed. Note that only the most current update to any given file is provided to the change processor.

Parameters:

changedFile - a file which has changed on the file system

getListSize

public int getListSize()

Gets the current size of the changed list

Returns:

the size of the list

addChangedFile

protected void addChangedFile(ChangedFile changedFile)

clear

public void clear()

Removes all files from the changed list.

getChangedFile

public ChangedFile getChangedFile()

Retrieves a changed file for processing and removes it from the list. Returns null if there are no changed files in the list.

Returns:

a file which has changed on the file system

getVersion

public long getVersion()

persist

public long persist(File persistFile)

Writes out the current state of the ChangeList to the given file.

Parameters:

persistFile - file to write state to

Returns:

the version ID of the ChangedList which was persisted

restore

public void restore(File persistFile)

Restores the state of the ChangedList using the given backup file

Parameters:

persistFile - file containing previous state

peek

public List<File> peek(int maxFiles)