From 510baf5164ce82f321c8d1ee4d756486e47165b6 Mon Sep 17 00:00:00 2001
From: romanman <roman.mandeleil@gmail.com>
Date: Mon, 9 Jun 2014 10:54:09 +0100
Subject: [PATCH] minor fix: + include ProgramInvokeFactory into the GitHub

---
 .../org/ethereum/vm/ProgramInvokeFactory.java | 93 +++++++++++++++++++
 1 file changed, 93 insertions(+)
 create mode 100644 ethereumj-core/src/main/java/org/ethereum/vm/ProgramInvokeFactory.java

diff --git a/ethereumj-core/src/main/java/org/ethereum/vm/ProgramInvokeFactory.java b/ethereumj-core/src/main/java/org/ethereum/vm/ProgramInvokeFactory.java
new file mode 100644
index 00000000..92d33884
--- /dev/null
+++ b/ethereumj-core/src/main/java/org/ethereum/vm/ProgramInvokeFactory.java
@@ -0,0 +1,93 @@
+package org.ethereum.vm;
+
+import org.ethereum.core.AccountState;
+import org.ethereum.core.Block;
+import org.ethereum.core.Transaction;
+import org.ethereum.manager.WorldManager;
+import org.ethereum.util.ByteUtil;
+
+/**
+ * www.ethereumJ.com
+ *
+ * @author: Roman Mandeleil
+ * Created on: 08/06/2014 09:59
+ */
+
+public class ProgramInvokeFactory {
+
+    // Invocation by the other program
+    public static ProgramInvoke createProgramInvoke(Program program){
+
+        return null;
+    }
+
+
+        // Invocation by the wire tx
+    public static ProgramInvoke createProgramInvoke(Transaction tx, Block lastBlock){
+
+        // https://ethereum.etherpad.mozilla.org/26
+
+        /***         ADDRESS op       ***/
+        // YP: Get address of currently executing account.
+        byte[] address  =  (tx.isContractCreation())? tx.getContractAddress(): tx.getReceiveAddress();
+
+        /***         ORIGIN op       ***/
+        // YP: This is the sender of original transaction; it is never a contract.
+        byte[] origin  = tx.getSender();
+
+        /***         CALLER op       ***/
+        // YP: This is the address of the account that is directly responsible for this execution.
+        byte[] caller = tx.getSender();
+
+        /***         BALANCE op       ***/
+        byte[] addressStateData = WorldManager.instance.worldState.get(address);
+
+        byte[] balance = null;
+        if (addressStateData.length == 0)
+            balance = new byte[]{0};
+        else
+            balance = new AccountState(addressStateData).getBalance().toByteArray();
+
+
+        /***         GASPRICE op       ***/
+        byte[] gasPrice = tx.getGasPrice();
+
+        /*** GAS op ***/
+        byte[] gas = tx.getGasLimit();
+
+        /***        CALLVALUE op      ***/
+        byte[] callValue = tx.getValue();
+
+
+        /***     CALLDATALOAD  op   ***/
+        /***     CALLDATACOPY  op   ***/
+        /***     CALLDATASIZE  op   ***/
+        byte[] data = tx.getData();
+        if (data == null) data = new byte[]{};
+
+        /***    PREVHASH  op  ***/
+        byte[] lastHash = lastBlock.getHash();
+
+        /***   COINBASE  op ***/
+        byte[] coinbase = lastBlock.getCoinbase();
+
+        /*** TIMESTAMP  op  ***/
+        long timestamp = lastBlock.getTimestamp();
+
+        /*** NUMBER  op  ***/
+        long number = lastBlock.getNumber();
+
+        /*** DIFFICULTY  op  ***/
+        byte[] difficulty = lastBlock.getDifficulty();
+
+        /*** GASLIMIT op ***/
+        long gaslimit = lastBlock.getGasLimit();
+
+
+        ProgramInvoke programInvoke =
+            new ProgramInvokeImpl(address, origin, caller, balance, gasPrice, gas, callValue, data,
+                    lastHash,  coinbase,  timestamp,  number,  difficulty,  gaslimit);
+
+        return programInvoke;
+    }
+}