Examples of org.ethereum.core.Block

org.ethereum.core.Block
The block in Ethereum is the collection of relevant pieces of information (known as the blockheader), H, together with information corresponding to the comprised transactions, R, and a set of other blockheaders U that are known to have a parent equal to the present block’s parent’s parent (such blocks are known as uncles). www.ethereumJ.com @author Roman Mandeleil,Nick Savers Created on: 20/05/2014 10:44

    @Ignore
    public void testMine2() {
        boolean miningTestEnabled = true;


        if(miningTestEnabled) {
            Block block = createBlock(null);


            logger.info("Minning on block: [{}] ", block.getNumber());
//            assertEquals(rlpWithoutNonce, Hex.toHexString(block.getEncodedWithoutNonce()));
//            System.out.println("Searching for nonce of following block: \n" + block.toString());


            Miner miner = new Miner();
            boolean mined = miner.mine(block, block.getDifficulty());
            assertTrue(mined);
            boolean valid = block.validateNonce();
            assertTrue(valid);
            logger.info("found nonce: [{}]", Hex.toHexString(block.getNonce()));


            while(true){


                Block newBlock = createBlock(block);
                mined = miner.mine(newBlock, newBlock.getDifficulty());
                assertTrue(mined);
                valid = newBlock.validateNonce();
                assertTrue(valid);
                block = newBlock;
                logger.info("found nonce: [{}]", Hex.toHexString(newBlock.getNonce()));
                logger.info("block.number: [{}], added to the chain", newBlock.getNumber());
            }
        }
    }

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        List<byte[]> hashes = msg.getBlockHashes();


        Vector<Block> blocks = new Vector<>();
        for (byte[] hash : hashes){
            Block block =  blockchain.getBlockByHash(hash);
            blocks.add(block);
        }


        BlocksMessage bm = new BlocksMessage(blocks);
        msgQueue.sendMessage(bm);

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            long gasLimit = 969216;
            long gasUsed = 0;
            long timestamp = 1401421088;
            byte[] stateRoot = Hex.decode("50188ab86bdf164ac90eb2835a04a8930aae5393c3a2ef1166fb95028f9456b8");


            Block newBlock = new Block(parentHash, unclesHash, coinbase, null,
                    difficulty, number, minGasPrice, gasLimit, gasUsed, timestamp,
                    null, nonce,  null, null);
            // Setting stateRoot manually, because don't have state available.
            return newBlock;
        } else{


            Block newBlock = new Block(lastBlock.getHash(), lastBlock.getUnclesHash(), lastBlock.getCoinbase(), null,
                    lastBlock.getDifficulty(), lastBlock.getNumber() + 1, lastBlock.getMinGasPrice(),
                    lastBlock.getGasLimit(), lastBlock.getGasUsed(), lastBlock.getTimestamp(),
                    null, null, null, null);


            return newBlock;

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        }


        Transaction tx = createTransaction();
        if (tx == null) return;


        Block lastBlock = UIEthereumManager.ethereum.getBlockchain().getBestBlock();
        ProgramPlayDialog.createAndShowGUI(programCode, tx, lastBlock);
    }

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            @Override
            public void actionPerformed(ActionEvent e) {


                if (UIEthereumManager.ethereum.getBlockchain().getSize() - 1 < lastFindIndex) return;


                Block block = UIEthereumManager.ethereum.getBlockchain().getBlockByNumber(lastFindIndex);
                StringSelection selection = new StringSelection(block.toString());
                Clipboard system = Toolkit.getDefaultToolkit().getSystemClipboard();
                system.setContents(selection, selection);
            }
        });

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    }


    private long findBlock(String textToFind, long blockNum, boolean forward) {
        if (forward) {
            for (long i = blockNum + 1; i < UIEthereumManager.ethereum.getBlockchain().getSize(); i++) {
                Block block = UIEthereumManager.ethereum.getBlockchain().getBlockByNumber(i);
                if (block.toString().toLowerCase().contains(textToFind.toLowerCase())) {
                    foundBlocks.add(i);
                    lastFindIndex = foundBlocks.size() - 1;
                    break;
                }
            }
        } else {
            for (long i = blockNum - 1; i >= 0; i--) {
                Block block = UIEthereumManager.ethereum.getBlockchain().getBlockByNumber(i);
                if (block.toString().toLowerCase().contains(textToFind.toLowerCase())) {
                    foundBlocks.add(0, i);
                    lastFindIndex = 0;
                    break;
                }
            }

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        Blockchain blockchain = UIEthereumManager.ethereum.getBlockchain();
        long blockNum = Long.parseLong(blockNumberText.getText());
        if (blockNum > blockchain.getSize() - 1) {
            blockNum = blockchain.getSize() - 1;
        }
        Block block = blockchain.getBlockByNumber(blockNum);
        blockN.setText("" + block.getNumber());
        highlightText(blockN);
        minGasPrice.setText("" + block.getMinGasPrice());
        highlightText(minGasPrice);
        gasLimit.setText("" + block.getGasLimit());
        highlightText(gasLimit);
        gasUsed.setText("" + block.getGasUsed());
        highlightText(gasUsed);
        timestamp.setText(Utils.longToDateTime(block.getTimestamp()));
        highlightText(timestamp);
        difficulty.setText(ByteUtil.toHexString(block.getDifficulty()));
        highlightText(difficulty);


        hash.setText(ByteUtil.toHexString(block.getHash()));
        highlightText(hash);
        parentHash.setText(ByteUtil.toHexString(block.getParentHash()));
        highlightText(parentHash);
        uncleHash.setText(ByteUtil.toHexString(block.getUnclesHash()));
        highlightText(uncleHash);
        stateRoot.setText(ByteUtil.toHexString(block.getStateRoot()));
        highlightText(stateRoot);
        trieRoot.setText(ByteUtil.toHexString(block.getTxTrieRoot()));
        highlightText(trieRoot);
        coinbase.setText(ByteUtil.toHexString(block.getCoinbase()));
        highlightText(coinbase);
        nonce.setText(ByteUtil.toHexString(block.getNonce()));
        highlightText(nonce);
        if (block.getExtraData() != null) {
            extraData.setText(ByteUtil.toHexString(block.getExtraData()));
            highlightText(extraData);
        }


        GridBagConstraints c = new GridBagConstraints();
        c.fill = GridBagConstraints.HORIZONTAL;


        transactionsPanel.removeAll();


        int row = 1;
        for (Transaction transaction : block.getTransactionsList()) {
            JPanel transactionPanel = createTransactionPanel(blockchainTable, transaction);


            c.gridx = 0;
            c.gridy = row;
            c.weighty = 1;

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  private void parse() {
    RLPList paramsList = (RLPList) RLP.decode2(encoded).get(0);


        RLPList blockRLP = ((RLPList) paramsList.get(1));
        block = new Block(blockRLP.getRLPData());
        difficulty =  paramsList.get(2).getRLPData();


        parsed = true;
  }

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        File file = new File(massiveUpload_1.toURI());
        List<String> strData = Files.readAllLines(file.toPath(), StandardCharsets.UTF_8);


        for(String blockRLP : strData){
            Block block = new Block(
                    Hex.decode(blockRLP));
            logger.info("sending block.hash: {}", Hex.toHexString( block.getHash() ));
            blockchain.tryToConnect(block);
        }


        List<Chain> altChains = blockchain.getAltChains();
        List<Block> garbage   = blockchain.getGarbage();

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        File file = new File(massiveUpload_1.toURI());
        List<String> strData = Files.readAllLines(file.toPath(), StandardCharsets.UTF_8);


        for(String blockRLP : strData){
            Block block = new Block(
                    Hex.decode(blockRLP));
            logger.info("sending block.hash: {}", Hex.toHexString( block.getHash() ));
            blockchain.tryToConnect(block);
        }


        List<Chain> altChains = blockchain.getAltChains();
        List<Block> garbage   = blockchain.getGarbage();

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Related Classes of org.ethereum.core.Block

org.ethereum.core.Chain

org.ethereum.db.BlockStore

org.ethereum.gui.BlockChainTable

org.ethereum.gui.ContractCallDialog

org.ethereum.net.BlockQueue

org.ethereum.net.eth.BlocksMessage

org.ethereum.net.eth.EthHandler

org.ethereum.net.eth.NewBlockMessage

org.ethereum.trie.TrieImpl

org.ethereum.vm.ProgramInvokeFactory

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