ch.epfl.dedis.byzcoin.contracts

Class ChainConfigData

java.lang.Object

ch.epfl.dedis.byzcoin.contracts.ChainConfigData

public class ChainConfigData
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
static int	blocksizeMax
static int	blocksizeMin

Constructor Summary

Constructors

Constructor and Description
ChainConfigData(ByzCoinProto.ChainConfig config) Construct a config given the protobuf-representation of the config.
ChainConfigData(ChainConfigData config) Construct a copy of the object.
ChainConfigData(Instance inst) Construct a config given the instance of the existing config.

Method Summary

Modifier and Type	Method and Description
void	setInterval(java.time.Duration newInterval) Sets the interval between two blocks.
void	setMaxBlockSize(int newSize) Sets the new maximum block size, which must be bigger than 2**14 bytes or 16kiBytes.
void	setRoster(Roster newRoster) Sets a new roster for ByzCoin.
ByzCoinProto.ChainConfig	toProto()

Methods inherited from class java.lang.Object

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

Field Detail

blocksizeMin

public static final int blocksizeMin

See Also:

Constant Field Values

blocksizeMax

public static final int blocksizeMax

See Also:

Constant Field Values

Constructor Detail

ChainConfigData

public ChainConfigData(Instance inst)
                throws CothorityNotFoundException

Construct a config given the instance of the existing config.

Parameters:

inst - the instance

Throws:

CothorityNotFoundException - if the read request in the instance is corrupt

ChainConfigData

public ChainConfigData(ByzCoinProto.ChainConfig config)

Construct a config given the protobuf-representation of the config.

Parameters:

config - the existing config

Throws:

CothorityNotFoundException - if the read request in the instance is corrupt

ChainConfigData

public ChainConfigData(ChainConfigData config)

Construct a copy of the object.

Parameters:

config - the old config

Throws:

CothorityNotFoundException - if the read request in the instance is corrupt

Method Detail

setRoster

public void setRoster(Roster newRoster)
               throws CothorityPermissionException,
                      CothorityCommunicationException

Sets a new roster for ByzCoin. This current version is very simplified as it only allows a new permutation of the roster and not to change the set of rosters. The new permutation makes sense if you want to redefine the leader that is responsible for announcing new blocks. The first node in the Roster will be the leader.

Parameters:

newRoster - the new roster to use

Throws:

CothorityPermissionException - if the new roster is not correctly set up.

CothorityCommunicationException - if the old roster contained an error.

setInterval

public void setInterval(java.time.Duration newInterval)
                 throws CothorityPermissionException

Sets the interval between two blocks. You cannot chose an interval smaller than 5 seconds.

Parameters:

newInterval - the new interval - bigger or equal to 5 seconds.

Throws:

CothorityPermissionException - if the chosen interval is wrong.

setMaxBlockSize

public void setMaxBlockSize(int newSize)
                     throws CothorityPermissionException

Sets the new maximum block size, which must be bigger than 2**14 bytes or 16kiBytes.

Parameters:

newSize - how many bytes should fit maximally into a new block

Throws:

CothorityPermissionException - if the given size is wrong

toProto

public ByzCoinProto.ChainConfig toProto()

Returns:

the the protobuf representation of the ReadData