Package org.nuxeo.ecm.core.blob

Class KeyStrategyDigest

java.lang.Object

org.nuxeo.ecm.core.blob.KeyStrategyDigest

All Implemented Interfaces:

KeyStrategy

public class KeyStrategyDigest
extends Object
implements KeyStrategy

Represents computation of blob keys based on a message digest.

Since:

11.1

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	KeyStrategyDigest.WriteObserverDigest	Write observer computing a digest.

Nested classes/interfaces inherited from interface org.nuxeo.ecm.core.blob.KeyStrategy

KeyStrategy.WriteObserver

Field Summary

Fields

Modifier and Type	Field	Description
final String	digestAlgorithm
final Pattern	digestPattern

Fields inherited from interface org.nuxeo.ecm.core.blob.KeyStrategy

VER_SEP

Constructor Summary

Constructors

Constructor	Description
KeyStrategyDigest(String digestAlgorithm)

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object obj)
BlobWriteContext	getBlobWriteContext(BlobContext blobContext)	Gets the write context for the given blob.
String	getDigestFromKey(String key)	Gets, if possible, a digest from the key.
protected static Pattern	getDigestPattern(String digestAlgorithm)
int	hashCode()
boolean	isValidDigest(String key)
boolean	isValidKey(String key)	Does the given key have the expected pattern for this strategy.
boolean	useDeDuplication()	Checks whether this key strategy uses de-duplication.

Methods inherited from class java.lang.Object

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

Field Details

digestAlgorithm

public final String digestAlgorithm

digestPattern

public final Pattern digestPattern

Constructor Details

KeyStrategyDigest

public KeyStrategyDigest(String digestAlgorithm)

Method Details

useDeDuplication

public boolean useDeDuplication()

Description copied from interface: KeyStrategy

Checks whether this key strategy uses de-duplication. When de-duplication is used, two blobs with identical contents have identical keys.

Specified by:

useDeDuplication in interface KeyStrategy

getDigestFromKey

public String getDigestFromKey(String key)

Description copied from interface: KeyStrategy

Gets, if possible, a digest from the key. This is not possible if the key is not derived from a digest.

Specified by:

getDigestFromKey in interface KeyStrategy

Parameters:

key - the key

Returns:

a digest, or null

isValidDigest

public boolean isValidDigest(String key)

getDigestPattern

protected static Pattern getDigestPattern(String digestAlgorithm)

getBlobWriteContext

public BlobWriteContext getBlobWriteContext(BlobContext blobContext)

Description copied from interface: KeyStrategy

Gets the write context for the given blob.

Specified by:

getBlobWriteContext in interface KeyStrategy

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

isValidKey

public boolean isValidKey(String key)

Description copied from interface: KeyStrategy

Does the given key have the expected pattern for this strategy.

Specified by:

isValidKey in interface KeyStrategy