Examples with BlockContext org.aion.zero.impl.types.BlockContext used on opensource projects

Example 16 with BlockContext

use of org.aion.zero.impl.types.BlockContext in project aion by aionnetwork.

the class BlockchainDataRecoveryTest method testRecoverIndex_wDeletedBlock.

@Test
public void testRecoverIndex_wDeletedBlock() {
    // build a blockchain with a few blocks
    StandaloneBlockchain.Builder builder = new StandaloneBlockchain.Builder();
    StandaloneBlockchain.Bundle bundle = builder.withValidatorConfiguration("simple").withDefaultAccounts(accounts).build();
    StandaloneBlockchain chain = bundle.bc;
    AionRepositoryImpl repo = chain.getRepository();
    BlockContext context;
    List<AionTransaction> txs;
    // all blocks will be incorrect
    long time = System.currentTimeMillis();
    Map<Long, byte[]> blocksToDelete = new HashMap<>();
    List<MiningBlock> blocksToImport = new ArrayList<>();
    for (int i = 0; i < NUMBER_OF_BLOCKS; i++) {
        txs = BlockchainTestUtils.generateTransactions(MAX_TX_PER_BLOCK, accounts, repo);
        context = chain.createNewMiningBlockInternal(chain.getBestBlock(), txs, true, time / 10000L);
        assertThat(chain.tryToConnect(context.block)).isEqualTo(ImportResult.IMPORTED_BEST);
        blocksToDelete.put(context.block.getNumber(), context.block.getHash());
        // skipping middle block
        if (context.block.getNumber() != NUMBER_OF_BLOCKS / 2) {
            blocksToImport.add(context.block);
        }
    }
    Block bestBlock = chain.getBestBlock();
    assertThat(bestBlock.getNumber()).isEqualTo(NUMBER_OF_BLOCKS);
    // delete middle block from db
    Block middle = chain.getBlockByNumber(NUMBER_OF_BLOCKS / 2);
    MockDB database = (MockDB) repo.getBlockDatabase();
    database.deleteAndCommit(middle.getHash());
    // delete index entries from the database
    MockDB indexDatabase = (MockDB) repo.getIndexDatabase();
    // 1: direct recovery call
    repo.flush();
    Map<Long, byte[]> deletedInfo = new HashMap<>();
    for (Map.Entry<Long, byte[]> entry : blocksToDelete.entrySet()) {
        byte[] indexKey = ByteUtil.intToBytes(entry.getKey().intValue());
        // saving the data for checking recovery
        deletedInfo.put(entry.getKey(), indexDatabase.get(indexKey).get());
        // deleting the block info
        indexDatabase.deleteAndCommit(indexKey);
        // ensure that the index was corrupted
        assertThat(repo.isIndexed(entry.getValue(), entry.getKey())).isFalse();
    }
    // ensure that the index was corrupted
    assertThat(repo.isIndexed(bestBlock.getHash(), bestBlock.getNumber())).isFalse();
    // call the recovery functionality
    assertThat(chain.recoverIndexEntry(repo, bestBlock)).isFalse();
    // ensure that the blockchain is ok
    assertThat(chain.getBestBlockHash()).isEqualTo(bestBlock.getHash());
    // ensure that the index was recovered
    assertThat(repo.isIndexed(bestBlock.getHash(), bestBlock.getNumber())).isFalse();
    // 2: recovery at import
    repo.flush();
    for (Map.Entry<Long, byte[]> entry : blocksToDelete.entrySet()) {
        byte[] indexKey = ByteUtil.intToBytes(entry.getKey().intValue());
        // deleting the block info
        indexDatabase.deleteAndCommit(indexKey);
        // ensure that the index was corrupted
        assertThat(repo.isIndexed(entry.getValue(), entry.getKey())).isFalse();
    }
    // ensure that the index was corrupted
    assertThat(repo.isIndexed(bestBlock.getHash(), bestBlock.getNumber())).isFalse();
    // call the recovery functionality indirectly
    for (MiningBlock block : blocksToImport) {
        // index missing before import
        assertThat(repo.isIndexed(block.getHash(), block.getNumber())).isFalse();
        assertThat(chain.tryToConnect(block)).isEqualTo(ImportResult.EXIST);
        if (block.getNumber() < middle.getNumber()) {
            // index present after import
            assertThat(repo.isIndexed(block.getHash(), block.getNumber())).isTrue();
        } else {
            // blocks after missing one cannot be recovered
            assertThat(repo.isIndexed(block.getHash(), block.getNumber())).isFalse();
        }
    }
    // ensure that the blockchain is ok
    assertThat(chain.getBestBlockHash()).isEqualTo(bestBlock.getHash());
    // ensure that the index was recovered
    assertThat(repo.isIndexed(bestBlock.getHash(), bestBlock.getNumber())).isFalse();
    // importing middle block
    assertThat(chain.tryToConnect(middle)).isEqualTo(ImportResult.IMPORTED_NOT_BEST);
    // call the recovery functionality indirectly
    for (MiningBlock block : blocksToImport) {
        // checking only failed blocks from before
        if (block.getNumber() > middle.getNumber()) {
            // index missing before import
            assertThat(repo.isIndexed(block.getHash(), block.getNumber())).isFalse();
            assertThat(chain.tryToConnect(block)).isEqualTo(ImportResult.EXIST);
            // index present after import
            assertThat(repo.isIndexed(block.getHash(), block.getNumber())).isTrue();
        }
    }
    // ensure that the blockchain is ok
    assertThat(chain.getBestBlockHash()).isEqualTo(bestBlock.getHash());
    // ensure that the index was recovered
    assertThat(repo.isIndexed(bestBlock.getHash(), bestBlock.getNumber())).isTrue();
    // check that the index information is correct at database level
    for (Long key : blocksToDelete.keySet()) {
        // checking at database level
        byte[] indexKey = ByteUtil.intToBytes(key.intValue());
        assertThat(deletedInfo.get(key)).isEqualTo(indexDatabase.get(indexKey).get());
    }
}

Example 17 with BlockContext

use of org.aion.zero.impl.types.BlockContext in project aion by aionnetwork.

the class BlockchainDataRecoveryTest method testRecoverWorldStateWithStartFromGenesis.

/**
 * Test the recovery of the world state with start from the state of the genesis block.
 */
@Test
public void testRecoverWorldStateWithStartFromGenesis() {
    // build a blockchain with a few blocks
    StandaloneBlockchain.Builder builder = new StandaloneBlockchain.Builder();
    StandaloneBlockchain.Bundle bundle = builder.withValidatorConfiguration("simple").withDefaultAccounts(accounts).build();
    StandaloneBlockchain chain = bundle.bc;
    AionRepositoryImpl repo = chain.getRepository();
    BlockContext context;
    List<AionTransaction> txs;
    // all blocks will be incorrect
    long time = System.currentTimeMillis();
    List<byte[]> statesToDelete = new ArrayList<>();
    List<MiningBlock> blocksToImport = new ArrayList<>();
    for (int i = 0; i < NUMBER_OF_BLOCKS; i++) {
        txs = BlockchainTestUtils.generateTransactions(MAX_TX_PER_BLOCK, accounts, repo);
        context = chain.createNewMiningBlockInternal(chain.getBestBlock(), txs, true, time / 10000L);
        assertThat(chain.tryToConnect(context.block)).isEqualTo(ImportResult.IMPORTED_BEST);
        statesToDelete.add(context.block.getStateRoot());
        blocksToImport.add(context.block);
    }
    Block bestBlock = chain.getBestBlock();
    assertThat(bestBlock.getNumber()).isEqualTo(NUMBER_OF_BLOCKS);
    // delete some world state root entries from the database
    TrieImpl trie = (TrieImpl) repo.getWorldState();
    MockDB database = (MockDB) repo.getStateDatabase();
    // 1: direct recovery call
    repo.flush();
    for (byte[] key : statesToDelete) {
        database.deleteAndCommit(key);
        assertThat(trie.isValidRoot(key)).isFalse();
    }
    // ensure that the world state was corrupted
    assertThat(trie.isValidRoot(chain.getBestBlock().getStateRoot())).isFalse();
    // call the recovery functionality
    boolean worked = chain.recoverWorldState(repo, bestBlock);
    // ensure that the blockchain is ok
    assertThat(chain.getBestBlockHash()).isEqualTo(bestBlock.getHash());
    // ensure that the world state is ok
    assertThat(worked).isTrue();
    assertThat(trie.isValidRoot(chain.getBestBlock().getStateRoot())).isTrue();
    // 2: recovery at import
    repo.flush();
    for (byte[] key : statesToDelete) {
        database.deleteAndCommit(key);
        assertThat(trie.isValidRoot(key)).isFalse();
    }
    // ensure that the world state was corrupted
    assertThat(trie.isValidRoot(chain.getBestBlock().getStateRoot())).isFalse();
    // call the recovery functionality indirectly
    for (MiningBlock block : blocksToImport) {
        // state missing before import
        assertThat(trie.isValidRoot(block.getStateRoot())).isFalse();
        assertThat(chain.tryToConnect(block)).isEqualTo(ImportResult.EXIST);
        // state present after import
        assertThat(trie.isValidRoot(block.getStateRoot())).isTrue();
    }
    // ensure that the blockchain is ok
    assertThat(chain.getBestBlockHash()).isEqualTo(bestBlock.getHash());
    // ensure that the world state is ok
    assertThat(trie.isValidRoot(chain.getBestBlock().getStateRoot())).isTrue();
}

Example 18 with BlockContext

use of org.aion.zero.impl.types.BlockContext in project aion by aionnetwork.

the class BlockchainDataRecoveryTest method testRecoverWorldState_wDeletedBlock.

@Test
public void testRecoverWorldState_wDeletedBlock() {
    // build a blockchain with a few blocks
    StandaloneBlockchain.Builder builder = new StandaloneBlockchain.Builder();
    StandaloneBlockchain.Bundle bundle = builder.withValidatorConfiguration("simple").withDefaultAccounts(accounts).build();
    StandaloneBlockchain chain = bundle.bc;
    AionRepositoryImpl repo = chain.getRepository();
    BlockContext context;
    List<AionTransaction> txs;
    // all blocks will be incorrect
    long time = System.currentTimeMillis();
    List<byte[]> statesToDelete = new ArrayList<>();
    List<MiningBlock> blocksToImport = new ArrayList<>();
    for (int i = 0; i < NUMBER_OF_BLOCKS; i++) {
        txs = BlockchainTestUtils.generateTransactions(MAX_TX_PER_BLOCK, accounts, repo);
        context = chain.createNewMiningBlockInternal(chain.getBestBlock(), txs, true, time / 10000L);
        assertThat(chain.tryToConnect(context.block)).isEqualTo(ImportResult.IMPORTED_BEST);
        statesToDelete.add(context.block.getStateRoot());
        // skipping middle block
        if (context.block.getNumber() != NUMBER_OF_BLOCKS / 2) {
            blocksToImport.add(context.block);
        }
    }
    Block bestBlock = chain.getBestBlock();
    assertThat(bestBlock.getNumber()).isEqualTo(NUMBER_OF_BLOCKS);
    // delete middle block from db
    Block middle = chain.getBlockByNumber(NUMBER_OF_BLOCKS / 2);
    MockDB database = (MockDB) repo.getBlockDatabase();
    database.deleteAndCommit(middle.getHash());
    // delete some world state root entries from the database
    TrieImpl trie = (TrieImpl) repo.getWorldState();
    database = (MockDB) repo.getStateDatabase();
    // 1: direct recovery call
    repo.flush();
    for (byte[] key : statesToDelete) {
        database.deleteAndCommit(key);
        assertThat(trie.isValidRoot(key)).isFalse();
    }
    // ensure that the world state was corrupted
    assertThat(trie.isValidRoot(chain.getBestBlock().getStateRoot())).isFalse();
    // call the recovery functionality
    assertThat(chain.recoverWorldState(repo, bestBlock)).isFalse();
    // ensure that the blockchain is ok
    assertThat(chain.getBestBlockHash()).isEqualTo(bestBlock.getHash());
    // ensure that the world state could not be recovered
    assertThat(trie.isValidRoot(chain.getBestBlock().getStateRoot())).isFalse();
    // 2: recovery at import
    repo.flush();
    for (byte[] key : statesToDelete) {
        database.deleteAndCommit(key);
        assertThat(trie.isValidRoot(key)).isFalse();
    }
    // ensure that the world state was corrupted
    assertThat(trie.isValidRoot(chain.getBestBlock().getStateRoot())).isFalse();
    // call the recovery functionality indirectly
    for (MiningBlock block : blocksToImport) {
        // state missing before import
        assertThat(trie.isValidRoot(block.getStateRoot())).isFalse();
        assertThat(chain.tryToConnect(block)).isEqualTo(ImportResult.EXIST);
        if (block.getNumber() < middle.getNumber()) {
            // state present after import
            assertThat(trie.isValidRoot(block.getStateRoot())).isTrue();
        } else {
            // block after missing one cannot be recovered
            assertThat(trie.isValidRoot(block.getStateRoot())).isFalse();
        }
    }
    // ensure that the blockchain is ok
    assertThat(chain.getBestBlockHash()).isEqualTo(bestBlock.getHash());
    // ensure that the world state is ok
    assertThat(trie.isValidRoot(chain.getBestBlock().getStateRoot())).isFalse();
    // importing middle block
    assertThat(chain.tryToConnect(middle)).isEqualTo(ImportResult.IMPORTED_NOT_BEST);
    // call the recovery functionality indirectly
    for (MiningBlock block : blocksToImport) {
        // checking only failed blocks from before
        if (block.getNumber() > middle.getNumber()) {
            // state missing before import
            assertThat(trie.isValidRoot(block.getStateRoot())).isFalse();
            assertThat(chain.tryToConnect(block)).isEqualTo(ImportResult.EXIST);
            // state present after import
            assertThat(trie.isValidRoot(block.getStateRoot())).isTrue();
        }
    }
    // ensure that the blockchain is ok
    assertThat(chain.getBestBlockHash()).isEqualTo(bestBlock.getHash());
    // ensure that the world state is ok
    assertThat(trie.isValidRoot(chain.getBestBlock().getStateRoot())).isTrue();
}

Example 19 with BlockContext

use of org.aion.zero.impl.types.BlockContext in project aion by aionnetwork.

the class BlockchainDataRecoveryTest method testRecoverWorldStateWithoutGenesis.

/**
 * Test the recovery of the world state when missing the genesis block state.
 *
 * <p>Under these circumstances the recovery will fail.
 */
@Test
public void testRecoverWorldStateWithoutGenesis() {
    // build a blockchain with a few blocks
    StandaloneBlockchain.Builder builder = new StandaloneBlockchain.Builder();
    StandaloneBlockchain.Bundle bundle = builder.withValidatorConfiguration("simple").withDefaultAccounts(accounts).build();
    StandaloneBlockchain chain = bundle.bc;
    AionRepositoryImpl repo = chain.getRepository();
    BlockContext context;
    List<AionTransaction> txs;
    // all blocks will be incorrect
    long time = System.currentTimeMillis();
    List<MiningBlock> blocksToImport = new ArrayList<>();
    for (int i = 0; i < NUMBER_OF_BLOCKS; i++) {
        txs = BlockchainTestUtils.generateTransactions(MAX_TX_PER_BLOCK, accounts, repo);
        context = chain.createNewMiningBlockInternal(chain.getBestBlock(), txs, true, time / 10000L);
        assertThat(chain.tryToConnect(context.block)).isEqualTo(ImportResult.IMPORTED_BEST);
        blocksToImport.add(context.block);
    }
    Block bestBlock = chain.getBestBlock();
    assertThat(bestBlock.getNumber()).isEqualTo(NUMBER_OF_BLOCKS);
    // delete some world state root entries from the database
    TrieImpl trie = (TrieImpl) repo.getWorldState();
    MockDB database = (MockDB) repo.getStateDatabase();
    // 1: direct recovery call
    repo.flush();
    List<byte[]> statesToDelete = new ArrayList<>();
    Iterator<byte[]> iterator = database.keys();
    while (iterator.hasNext()) {
        statesToDelete.add(iterator.next());
    }
    for (byte[] key : statesToDelete) {
        database.deleteAndCommit(key);
        assertThat(trie.isValidRoot(key)).isFalse();
    }
    // ensure that the world state was corrupted
    assertThat(trie.isValidRoot(chain.getBestBlock().getStateRoot())).isFalse();
    // call the recovery functionality
    boolean worked = chain.recoverWorldState(repo, bestBlock);
    // ensure that the blockchain is ok
    assertThat(chain.getBestBlockHash()).isEqualTo(bestBlock.getHash());
    // ensure that the world state was not recovered
    assertThat(worked).isFalse();
    assertThat(trie.isValidRoot(chain.getBestBlock().getStateRoot())).isFalse();
    // 2: recovery at import
    repo.flush();
    for (byte[] key : statesToDelete) {
        database.deleteAndCommit(key);
        assertThat(trie.isValidRoot(key)).isFalse();
    }
    // ensure that the world state was corrupted
    assertThat(trie.isValidRoot(chain.getBestBlock().getStateRoot())).isFalse();
    // call the recovery functionality indirectly
    for (MiningBlock block : blocksToImport) {
        // state missing before import
        assertThat(trie.isValidRoot(block.getStateRoot())).isFalse();
        assertThat(chain.tryToConnect(block)).isEqualTo(ImportResult.EXIST);
        // state missing after import (because there is not genesis to recover from)
        assertThat(trie.isValidRoot(block.getStateRoot())).isFalse();
    }
    // ensure that the blockchain is ok
    assertThat(chain.getBestBlockHash()).isEqualTo(bestBlock.getHash());
    // ensure that the world state is ok
    assertThat(trie.isValidRoot(chain.getBestBlock().getStateRoot())).isFalse();
}

Example 20 with BlockContext

use of org.aion.zero.impl.types.BlockContext in project aion by aionnetwork.

the class ApiWeb3Aion method stratum_getwork.

public RpcMsg stratum_getwork() {
    if (isSeedMode) {
        return new RpcMsg(null, RpcError.NOT_ALLOWED, "SeedNodeIsOpened");
    }
    BlockContext bestBlock;
    try {
        bestBlock = getBlockTemplate();
        if (bestBlock == null) {
            LOG.debug("Couldn't create a mining block template");
            JSONObject obj = new JSONObject();
            obj.put("message", "no mining block template ");
            obj.put("code", -1);
            return new RpcMsg(obj);
        }
    } catch (Exception e) {
        LOG.error("get mining block template failed!", e);
        JSONObject obj = new JSONObject();
        obj.put("message", "failed: " + e.toString());
        obj.put("code", -1);
        return new RpcMsg(obj);
    }
    JSONObject obj = new JSONObject();
    obj.put("previousblockhash", toHexString(bestBlock.block.getParentHash()));
    obj.put("height", bestBlock.block.getNumber());
    obj.put("target", toHexString(bestBlock.block.getHeader().getPowBoundary()));
    obj.put("headerHash", toHexString(bestBlock.block.getHeader().getMineHash()));
    obj.put("blockBaseReward", toHexString(bestBlock.baseBlockReward.toByteArray()));
    obj.put("blockTxFee", toHexString(bestBlock.transactionFee.toByteArray()));
    return new RpcMsg(obj);
}