org.mpisws.p2p.transport.peerreview
Class SecureHistoryFactoryImpl

java.lang.Object
  org.mpisws.p2p.transport.peerreview.SecureHistoryFactoryImpl

All Implemented Interfaces:

SecureHistoryFactory

public class SecureHistoryFactoryImpl
extends java.lang.Object
implements SecureHistoryFactory

Field Summary

static int

HASH_LENGTH

Constructor Summary

SecureHistoryFactoryImpl()

Method Summary

SecureHistory	create(java.lang.String name, long baseSeq, Hash baseHash) Creates a new history (aka log).
int	getHashSizeBytes()
SecureHistory	open(java.lang.String name, boolean readonly)

Methods inherited from class java.lang.Object

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

Field Detail

HASH_LENGTH

public static final int HASH_LENGTH

See Also:

Constant Field Values

Constructor Detail

SecureHistoryFactoryImpl

public SecureHistoryFactoryImpl()

Method Detail

create

public SecureHistory create(java.lang.String name,
                            long baseSeq,
                            Hash baseHash)
                     throws java.io.IOException

Description copied from interface: SecureHistoryFactory

Creates a new history (aka log). Histories are stored as two files: The 'index' file has a fixed-size record for each entry, which contains the sequence number, content and node hashes, as well as an index into the data file. The 'data' file just contains the raw bytes for each entry. Note that the caller must specify the node hash and the sequence number of the first log entry, which forms the base of the hash chain.

Specified by:

create in interface SecureHistoryFactory

Throws:

java.io.IOException

getHashSizeBytes

public int getHashSizeBytes()

Specified by:

getHashSizeBytes in interface SecureHistoryFactory

open

public SecureHistory open(java.lang.String name,
                          boolean readonly)
                   throws java.io.IOException

Specified by:

open in interface SecureHistoryFactory

Throws:

java.io.IOException