org.archive.crawler.datamodel
Class Checkpoint

java.lang.Object
  org.archive.crawler.datamodel.Checkpoint

All Implemented Interfaces:

java.io.Serializable

public class Checkpoint
extends java.lang.Object
implements java.io.Serializable

Record of a specific checkpoint on disk. Used recovering from a checkpoint or displaying list of checkpoints done so far.

Author:

gojomo

See Also:

Serialized Form

Field Summary

static java.lang.String

VALIDITY_STAMP_FILENAME Name of file written with timestamp into valid checkpoints.

Constructor Summary

protected	Checkpoint() Publically inaccessible default constructor.
	Checkpoint(java.io.File checkpointDir) Create a Checkpoint instance based on the given prexisting checkpoint directory

Method Summary

java.io.File	getDirectory()
java.lang.String	getDisplayName()
java.lang.String	getName()
java.lang.String	getTimestamp()
boolean	hasBdbjeLogs()
boolean	isValid()
protected void	readValid()

Methods inherited from class java.lang.Object

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

Field Detail

VALIDITY_STAMP_FILENAME

public static final java.lang.String VALIDITY_STAMP_FILENAME

Name of file written with timestamp into valid checkpoints.

See Also:

Constant Field Values

Constructor Detail

Checkpoint

protected Checkpoint()

Publically inaccessible default constructor.

Checkpoint

public Checkpoint(java.io.File checkpointDir)

Create a Checkpoint instance based on the given prexisting checkpoint directory

Parameters:

checkpointDir - Directory that holds checkpoint.

Method Detail

readValid

protected void readValid()

isValid

public boolean isValid()

Returns:

Return true if this checkpoint appears complete/resumable (has 'valid' stamp file).

getName

public java.lang.String getName()

Returns:

Returns name of this Checkpoint

getDisplayName

public java.lang.String getDisplayName()

Returns:

Return the combination of given name and timestamp most commonly used in administrative interface.

getTimestamp

public java.lang.String getTimestamp()

Returns:

Returns the timestamp.

getDirectory

public java.io.File getDirectory()

Returns:

Returns the checkpoint directory.

hasBdbjeLogs

public boolean hasBdbjeLogs()

Returns:

True if this checkpoint contains bdb logs (It won't if we're doing 'fast' checkpoints).