status-im
/
ethereumj-personal
mirror of https://github.com/status-im/ethereumj-personal.git
2
0
Fork 0
Code Issues Projects Releases Wiki Activity

Clean and update documentation Transaction class

This commit is contained in:
nicksavers 2014-05-28 15:37:18 +02:00
parent bcb934bed7
commit e768d03ca1
1 changed files with 22 additions and 31 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

53
ethereumj-core/src/main/java/org/ethereum/core/Transaction.java
View File

@ -27,17 +27,9 @@ public class Transaction {
Logger logger = LoggerFactory.getLogger(this.getClass());
private static final int CALL_SIZE = 9;
private static final int CONTRACT_SIZE = 10;
public static final byte[] ZERO_ADDRESS = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
public static final byte[] ZERO_ADDRESS = new byte[20];
/* creation contract tx
* [ nonce, endowment, 0000000000000000, gasPrice, gasDeposit data, signature(v, r, s) ]
* or simple send tx
* [ nonce, value, receiveAddress, gasPrice, gasDeposit, data, signature(v, r, s) ]
*/
/* SHA3 hash of the rlpEncoded transaction */
/* SHA3 hash of the RLP encoded transaction */
private byte[] hash;
/* a counter used to make sure each transaction can only be processed once */
@ -61,8 +53,8 @@ public class Transaction {
private byte[] gasLimit;
/* An unlimited size byte array specifying
* input [data] of the message call */
/* Initialisation code for a new contract */
* input [data] of the message call or
* Initialization code for a new contract */
private byte[] data;
/* the elliptic curve signature
@ -73,7 +65,7 @@ public class Transaction {
private byte[] rlpEncoded;
private byte[] rlpRaw;
/* Indicates if this transaction has been parsed
* from the rlp-encoded data */
* from the RLP-encoded data */
private boolean parsed = false;
public Transaction(byte[] rawData) {
@ -81,6 +73,11 @@ public class Transaction {
parsed = false;
}
/* creation contract tx
* [ nonce, gasPrice, gasLimit, 0000000000000000, endowment, init, signature(v, r, s) ]
* or simple send tx
* [ nonce, gasPrice, gasLimit, receiveAddress, value, data, signature(v, r, s) ]
*/
public Transaction(byte[] nonce, byte[] gasPrice, byte[] gasLimit, byte[] receiveAddress, byte[] value, byte[] data) {
this.nonce = nonce;
this.gasPrice = gasPrice;
@ -95,7 +92,7 @@ public class Transaction {
parsed = true;
}
public void rlpParse(){
public void rlpParse() {
RLPList decodedTxList = RLP.decode2(rlpEncoded);
RLPList transaction = (RLPList) decodedTxList.get(0);
@ -106,7 +103,6 @@ public class Transaction {
this.receiveAddress = ((RLPItem) transaction.get(3)).getRLPData();
this.value = ((RLPItem) transaction.get(4)).getRLPData();
this.data = ((RLPItem) transaction.get(5)).getRLPData();
// only parse signature in case tx is signed
if(((RLPItem) transaction.get(6)).getRLPData() != null) {
@ -117,7 +113,6 @@ public class Transaction {
} else {
logger.debug("RLP encoded tx is not signed!");
}
this.parsed = true;
this.hash = this.getHash();
}
@ -127,7 +122,6 @@ public class Transaction {
}
public byte[] getHash() {
if (!parsed) rlpParse();
byte[] plainMsg = this.getEncodedRaw();
return HashUtil.sha3(plainMsg);
@ -177,11 +171,9 @@ public class Transaction {
if (!isContract()) return null;
byte[] val1 = RLP.encodeElement(getSender());
byte[] val2 = RLP.encodeElement(nonce);
byte[] val = HashUtil.sha3omit12(RLP.encodeList(val1, val2));
return val;
byte[] encSender = RLP.encodeElement(getSender());
byte[] encNonce = RLP.encodeElement(nonce);
return HashUtil.sha3omit12(RLP.encodeList(encSender, encNonce));
}
public boolean isContract() {
@ -231,8 +223,8 @@ public class Transaction {
}
/**
* For signature games you have to keep also
* rlp of the transaction without any signature data
* For signatures you have to keep also
* RLP of the transaction without any signature data
*/
public byte[] getEncodedRaw(){
@ -244,10 +236,10 @@ public class Transaction {
byte[] gasLimit = RLP.encodeElement(this.gasLimit);
byte[] receiveAddress = RLP.encodeElement(this.receiveAddress);
byte[] value = RLP.encodeElement(this.value);
byte[] init = RLP.encodeElement(this.data);
byte[] data = RLP.encodeElement(this.data);
this.rlpRaw = RLP.encodeList(nonce, gasPrice, gasLimit, receiveAddress, value,
init);
this.rlpRaw = RLP.encodeList(nonce, gasPrice, gasLimit, receiveAddress,
value, data);
return rlpRaw;
}
@ -260,7 +252,7 @@ public class Transaction {
byte[] gasLimit = RLP.encodeElement(this.gasLimit);
byte[] receiveAddress = RLP.encodeElement(this.receiveAddress);
byte[] value = RLP.encodeElement(this.value);
byte[] init = RLP.encodeElement(this.data);
byte[] data = RLP.encodeElement(this.data);
byte[] v, r, s;
@ -274,9 +266,8 @@ public class Transaction {
s = RLP.encodeElement(new byte[0]);
}
this.rlpEncoded = RLP.encodeList(nonce, gasPrice, gasLimit, receiveAddress, value,
init, v, r, s);
this.rlpEncoded = RLP.encodeList(nonce, gasPrice, gasLimit,
receiveAddress, value, data, v, r, s);
return rlpEncoded;
}