Package convex.core.data

Class PeerStatus

java.lang.Object

convex.core.data.AObject

convex.core.data.ACell

convex.core.data.ACountable<E>

convex.core.data.ADataStructure<MapEntry<K,V>>

convex.core.data.AMap<Keyword,ACell>

convex.core.data.ARecord

convex.core.data.PeerStatus

All Implemented Interfaces:

IAssociative<Keyword,ACell>, IValidated, IWriteable, Map<Keyword,ACell>

public class PeerStatus
extends ARecord

Class describing the on-chain state of a Peer declared on the network. State includes: - Stake placed by this Peer - A host address for peer connections / client requests

Nested Class Summary

Nested classes/interfaces inherited from interface java.util.Map

Map.Entry<K extends Object,V extends Object>

Field Summary

Fields inherited from class convex.core.data.ARecord

DEFAULT_VALUE

Fields inherited from class convex.core.data.ADataStructure

count

Fields inherited from class convex.core.data.ACell

cachedRef, EMPTY_ARRAY

Fields inherited from class convex.core.data.AObject

encoding

Method Summary

Modifier and Type	Method	Description
protected static long	computeDelegatedStake(BlobMap<Address,CVMLong> stakes)
static PeerStatus	create(Address controller, long stake)
static PeerStatus	create(Address controller, long stake, AHashMap<ACell,ACell> metadata)
int	encode(byte[] bs, int pos)	Writes this Cell's encoding to a byte array, including a tag byte which will be written first.
int	encodeRaw(byte[] bs, int pos)	Writes the raw fields of this record in declared order
boolean	equals(ACell a)	Checks for equality with another Cell.
boolean	equals(PeerStatus a)	Tests if this PeerStatus is equal to another
int	estimatedEncodingSize()	Estimate the encoded data size for this Cell.
ACell	get(Keyword key)	Gets the record field content for a given key, or null if not found.
Address	getController()	Gets the controller of this peer
long	getDelegatedStake()	Gets the delegated stake of this peer
long	getDelegatedStake(Address delegator)	Gets the delegated stake on this peer for the given delegator.
RecordFormat	getFormat()	Gets the RecordFormat instance that describes this Record's layout
AString	getHostname()	Gets the String representation of the hostname set for the current Peer status, or null if not specified.
AHashMap<ACell,ACell>	getMetadata()	Gets the Metadata of this Peer
long	getPeerStake()	Gets the self-owned stake of this peer
<R extends ACell> Ref<R>	getRef(int i)	Gets a numbered child Ref from within this Cell.
int	getRefCount()	Gets the number of Refs contained within this Cell.
byte	getTag()	Gets the tag byte for this record type.
long	getTimestamp()	Gets the timestamp of the last Block issued by this Peer in consensus
long	getTotalStake()	Gets the stake of this peer
boolean	isCanonical()	Returns true if this Cell is in a canonical representation for message writing.
static PeerStatus	read(Blob b, int pos)	Decodes a PeerStatus from a Blob.
PeerStatus	updateRefs(IRefFunction func)	Updates all Refs in this object using the given function.
void	validateCell()	Validates the local structure and invariants of this cell.
PeerStatus	withDelegatedStake(Address delegator, long newStake)	Sets the delegated stake on this peer for the given delegator.
PeerStatus	withPeerData(AHashMap<ACell,ACell> newMeta)
PeerStatus	withPeerStake(long newStake)	Sets the Peer Stake on this peer for the given delegator.

Methods inherited from class convex.core.data.ARecord

accumulateEntrySet, accumulateKeySet, accumulateValues, assoc, assocEntry, containsKey, containsValue, dissoc, dissoc, empty, entryAt, entrySet, forEach, get, getEntry, getEntryByHash, getKeyRefEntry, getKeys, getType, getValuesArray, isCVMValue, keySet, reduceEntries, reduceValues, toCanonical, toHashMap, values

Methods inherited from class convex.core.data.AMap

clear, conj, containsKey, containsKeyRef, containsValue, entryVector, filterValues, get, get, get, getElementRef, merge, print, put, putAll, remove, slice, slice

Methods inherited from class convex.core.data.ADataStructure

checkIndex, conjAll, count, isEmpty, size, toCVMString

Methods inherited from class convex.core.data.ACell

announce, announce, attachMemorySize, attachRef, cachedEncoding, cachedHash, calcMemorySize, createAnnounced, createEncoding, createPersisted, createPersisted, createRef, equals, getCanonical, getChildRefs, getEncoding, getEncodingLength, getHash, getMemorySize, getRef, hashCode, isCompletelyEncoded, isEmbedded, mark, mark, toString, validate

Methods inherited from class convex.core.data.AObject

attachEncoding, print, print

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Map

compute, computeIfAbsent, computeIfPresent, equals, getOrDefault, hashCode, isEmpty, merge, putIfAbsent, remove, replace, replace, replaceAll, size

Method Details

create

public static PeerStatus create(Address controller,
 long stake)

create

public static PeerStatus create(Address controller,
 long stake,
 AHashMap<ACell,ACell> metadata)

getTotalStake

public long getTotalStake()

Gets the stake of this peer

Returns:

Total stake, including own stake + delegated stake

getPeerStake

public long getPeerStake()

Gets the self-owned stake of this peer

Returns:

Own stake, excluding delegated stake

getTimestamp

public long getTimestamp()

Gets the timestamp of the last Block issued by this Peer in consensus

Returns:

Timestamp of last block

getController

public Address getController()

Gets the controller of this peer

Returns:

The controller of this peer

getDelegatedStake

public long getDelegatedStake()

Gets the delegated stake of this peer

Returns:

Total of delegated stake

getHostname

public AString getHostname()

Gets the String representation of the hostname set for the current Peer status, or null if not specified.

Returns:

Hostname String

getMetadata

public AHashMap<ACell,ACell> getMetadata()

Gets the Metadata of this Peer

Returns:

Host String

encode

public int encode(byte[] bs,
 int pos)

Description copied from class: ACell

Writes this Cell's encoding to a byte array, including a tag byte which will be written first. Cell must be canonical, or else an error may occur.

Specified by:

encode in interface IWriteable

Specified by:

encode in class ACell

Parameters:

bs - A byte array to which to write the encoding

pos - The offset into the byte array

Returns:

New position after writing

encodeRaw

public int encodeRaw(byte[] bs,
 int pos)

Description copied from class: ARecord

Writes the raw fields of this record in declared order

Overrides:

encodeRaw in class ARecord

Parameters:

bs - Array to write to

pos - The offset into the byte array

Returns:

New position after writing

read

public static PeerStatus read(Blob b,
 int pos)
                       throws BadFormatException

Decodes a PeerStatus from a Blob.

Parameters:

b - Blob to read from

pos - Start position in Blob (location of tag byte)

Returns:

New decoded instance

Throws:

BadFormatException - In the event of any encoding error

estimatedEncodingSize

public int estimatedEncodingSize()

Description copied from interface: IWriteable

Estimate the encoded data size for this Cell. Used for quickly sizing buffers. Implementations should try to return a size that is highly likely to contain the entire object when encoded, including the tag byte. Should not traverse soft Refs, i.e. must be usable on arbitrary partial data structures

Specified by:

estimatedEncodingSize in interface IWriteable

Overrides:

estimatedEncodingSize in class ARecord

Returns:

The estimated size for the binary representation of this object.

isCanonical

public boolean isCanonical()

Description copied from class: ACell

Returns true if this Cell is in a canonical representation for message writing. Non-canonical objects may be used on a temporary internal basis, they must always be converted to canonical representations for external use (e.g. Encoding).

Overrides:

isCanonical in class ARecord

Returns:

true if the object is in canonical format, false otherwise

getDelegatedStake

public long getDelegatedStake(Address delegator)

Gets the delegated stake on this peer for the given delegator. Returns 0 if the delegator has no stake.

Parameters:

delegator - Address of delegator

Returns:

Value of delegated stake

withDelegatedStake

public PeerStatus withDelegatedStake(Address delegator,
 long newStake)

Sets the delegated stake on this peer for the given delegator. A value of 0 will remove the delegator's stake entirely

Parameters:

delegator - Address of delegator

newStake - New Delegated stake for the given Address

Returns:

Value of delegated stake

withPeerStake

public PeerStatus withPeerStake(long newStake)

Sets the Peer Stake on this peer for the given delegator. A value of 0 will remove the Peer stake entirely

Parameters:

newStake - New Delegated stake for the given Address

Returns:

Value of delegated stake

withPeerData

public PeerStatus withPeerData(AHashMap<ACell,ACell> newMeta)

validateCell

public void validateCell()
                  throws InvalidDataException

Description copied from class: ACell

Validates the local structure and invariants of this cell. Called by validate() super implementation. Should validate directly contained data, but should not validate all other structure of this cell. In particular, should not traverse potentially missing child Refs.

Specified by:

validateCell in class ACell

Throws:

InvalidDataException - If the Cell is invalid

get

public ACell get(Keyword key)

Description copied from class: ARecord

Gets the record field content for a given key, or null if not found.

Specified by:

get in class ARecord

Parameters:

key - Key to look up in this record

Returns:

Field value for the given key

getTag

public byte getTag()

Description copied from class: ARecord

Gets the tag byte for this record type. The Tag is the byte used to identify the record in the binary encoding.

Specified by:

getTag in class ARecord

Returns:

Record tag byte

updateRefs

public PeerStatus updateRefs(IRefFunction func)

Description copied from class: ACell

Updates all Refs in this object using the given function. The function *must not* change the hash value of Refs, in order to ensure structural integrity of modified data structures. The implementation *should* re-attach any original encoding in order to prevent re-encoding or surplus hashing This is a building block for a very sneaky trick that enables use to do a lot of efficient operations on large trees of smart references. Must return the same object if no Refs are altered.

Overrides:

updateRefs in class ACell

Parameters:

func - Ref update function

Returns:

Cell with updated Refs

computeDelegatedStake

protected static long computeDelegatedStake(BlobMap<Address,CVMLong> stakes)

equals

public boolean equals(ACell a)

Description copied from class: ACell

Checks for equality with another Cell. In general, Cells are considered equal if they have the same canonical representation, i.e. an identical encoding with the same hash value. Subclasses SHOULD override this if they have a more efficient equals implementation. MUST NOT require reads from Store.

Overrides:

equals in class ACell

Parameters:

a - Cell to compare with. May be null.

Returns:

True if this cell is equal to the other object

equals

public boolean equals(PeerStatus a)

Tests if this PeerStatus is equal to another

Parameters:

a - PeerStatus to compare with

Returns:

true if equal, false otherwise

getRefCount

public int getRefCount()

Description copied from class: ACell

Gets the number of Refs contained within this Cell. This number is final / immutable for any given instance and is defined by the Cell encoding rules. WARNING: may not be valid id Cell is not canonical Contained Refs may be either external or embedded.

Specified by:

getRefCount in class ACell

Returns:

The number of Refs in this Cell

getRef

public <R extends ACell> Ref<R> getRef(int i)

Description copied from class: ACell

Gets a numbered child Ref from within this Cell. WARNING: May be unreliable is cell is not canonical

Overrides:

getRef in class ACell

Type Parameters:

R - Type of referenced Cell

Parameters:

i - Index of ref to get

Returns:

The Ref at the specified index

getFormat

public RecordFormat getFormat()

Description copied from class: ARecord

Gets the RecordFormat instance that describes this Record's layout

Specified by:

getFormat in class ARecord

Returns:

RecordFormat instance