freenet.store

Class CHKStore

java.lang.Object

freenet.store.StoreCallback<CHKBlock>

freenet.store.CHKStore

public class CHKStore
extends StoreCallback<CHKBlock>

Field Summary

Fields inherited from class freenet.store.StoreCallback

store

Constructor Summary

Constructors

Constructor and Description
CHKStore()

Method Summary

Modifier and Type	Method and Description
boolean	collisionPossible() Can the same key be valid for two different StorableBlocks?
CHKBlock	construct(byte[] data, byte[] headers, byte[] routingKey, byte[] fullKey, boolean canReadClientCache, boolean canReadSlashdotCache, BlockMetadata meta, DSAPublicKey ignored) Construct a StorableBlock from the data, headers, and optionally routing key or full key.
boolean	constructNeedsKey() Whether we need the key in order to reconstruct a block.
int	dataLength() Length of a data block.
CHKBlock	fetch(NodeCHK chk, boolean dontPromote, boolean ignoreOldBlocks, BlockMetadata meta)
int	fullKeyLength() Length of a full key.
int	headerLength() Length of a header block.
void	put(CHKBlock b, boolean isOldBlock)
byte[]	routingKeyFromFullKey(byte[] keyBuf) Generate a routing key from a full key
int	routingKeyLength() Length of a routing key.
boolean	storeFullKeys() Whether we should create a .keys file to keep full keys in in order to reconstruct.

Methods inherited from class freenet.store.StoreCallback

getBloomFalsePositive, getMaxKeys, getSessionAccessStats, getStore, getTotalAccessStats, getTotalBlockSize, hits, keyCount, misses, setMaxKeys, setStore, writes

Methods inherited from class java.lang.Object

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

Constructor Detail

CHKStore

public CHKStore()

Method Detail

collisionPossible

public boolean collisionPossible()

Description copied from class: StoreCallback

Can the same key be valid for two different StorableBlocks?

Specified by:

collisionPossible in class StoreCallback<CHKBlock>

construct

public CHKBlock construct(byte[] data,
                          byte[] headers,
                          byte[] routingKey,
                          byte[] fullKey,
                          boolean canReadClientCache,
                          boolean canReadSlashdotCache,
                          BlockMetadata meta,
                          DSAPublicKey ignored)
                   throws KeyVerifyException

Description copied from class: StoreCallback

Construct a StorableBlock from the data, headers, and optionally routing key or full key. IMPORTANT: Using the full key or routing key is OPTIONAL, and if we don't use them, WE DON'T CHECK THEM EITHER! Caller MUST check that the key is the one expected.

Specified by:

construct in class StoreCallback<CHKBlock>

Throws:

KeyVerifyException

fetch

public CHKBlock fetch(NodeCHK chk,
                      boolean dontPromote,
                      boolean ignoreOldBlocks,
                      BlockMetadata meta)
               throws java.io.IOException

Throws:

java.io.IOException

put

public void put(CHKBlock b,
                boolean isOldBlock)
         throws java.io.IOException

Throws:

java.io.IOException

dataLength

public int dataLength()

Description copied from class: StoreCallback

Length of a data block. Fixed for lifetime of the store.

Specified by:

dataLength in class StoreCallback<CHKBlock>

fullKeyLength

public int fullKeyLength()

Description copied from class: StoreCallback

Length of a full key. Full keys are stored in the .keys file. Also fixed.

Specified by:

fullKeyLength in class StoreCallback<CHKBlock>

headerLength

public int headerLength()

Description copied from class: StoreCallback

Length of a header block. Fixed for the lifetime of the store.

Specified by:

headerLength in class StoreCallback<CHKBlock>

routingKeyLength

public int routingKeyLength()

Description copied from class: StoreCallback

Length of a routing key. Routing key is what we use to search for a block. Also fixed.

Specified by:

routingKeyLength in class StoreCallback<CHKBlock>

storeFullKeys

public boolean storeFullKeys()

Description copied from class: StoreCallback

Whether we should create a .keys file to keep full keys in in order to reconstruct.

Specified by:

storeFullKeys in class StoreCallback<CHKBlock>

constructNeedsKey

public boolean constructNeedsKey()

Description copied from class: StoreCallback

Whether we need the key in order to reconstruct a block.

Specified by:

constructNeedsKey in class StoreCallback<CHKBlock>

routingKeyFromFullKey

public byte[] routingKeyFromFullKey(byte[] keyBuf)

Description copied from class: StoreCallback

Generate a routing key from a full key

Specified by:

routingKeyFromFullKey in class StoreCallback<CHKBlock>