Examples with DataAccount com.jd.blockchain.ledger.core.DataAccount used on opensource projects

Example 1 with DataAccount

use of com.jd.blockchain.ledger.core.DataAccount in project jdchain-core by blockchain-jd-com.

the class ContractLedgerQueryService method getDataEntries.

@Override
public TypedKVEntry[] getDataEntries(String address, int fromIndex, int count) {
    DataAccountSet dataAccountSet = ledgerQuery.getDataAccountSet();
    DataAccount dataAccount = dataAccountSet.getAccount(Bytes.fromBase58(address));
    QueryArgs queryArgs = QueryUtils.calFromIndexAndCount(fromIndex, count, (int) dataAccount.getDataset().getDataCount());
    SkippingIterator<DataEntry<String, TypedValue>> iterator = ((IteratorDataset) dataAccount.getDataset()).kvIterator();
    iterator.skip(queryArgs.getFrom());
    TypedKVEntry[] typedKVEntries = iterator.next(queryArgs.getCount(), TypedKVEntry.class, entry -> new TypedKVData(entry.getKey(), entry.getVersion(), entry.getValue()));
    return typedKVEntries;
}

Example 2 with DataAccount

use of com.jd.blockchain.ledger.core.DataAccount in project jdchain-core by blockchain-jd-com.

the class ContractLedgerQueryService method getDataEntry.

@Override
public TypedKVEntry getDataEntry(String address, String key, long version) {
    DataAccount account = ledgerQuery.getDataAccountSet().getAccount(address);
    if (null == account) {
        return null;
    }
    BytesValue value = account.getDataset().getValue(key, version);
    if (null == value) {
        return null;
    }
    return new TypedKVData(key, version, value);
}

Example 3 with DataAccount

use of com.jd.blockchain.ledger.core.DataAccount in project jdchain-core by blockchain-jd-com.

the class ContractLedgerQueryService method getDataEntries.

@Override
public TypedKVEntry[] getDataEntries(String address, String... keys) {
    DataAccount account = ledgerQuery.getDataAccountSet().getAccount(address);
    TypedKVEntry[] entries = new TypedKVEntry[keys.length];
    long ver;
    for (int i = 0; i < entries.length; i++) {
        final String currKey = keys[i];
        ver = account == null ? -1 : account.getDataset().getVersion(currKey);
        if (ver < 0) {
            entries[i] = new TypedKVData(currKey, -1, null);
        } else {
            BytesValue value = account.getDataset().getValue(currKey, ver);
            entries[i] = new TypedKVData(currKey, ver, value);
        }
    }
    return entries;
}

Example 4 with DataAccount

use of com.jd.blockchain.ledger.core.DataAccount in project jdchain-core by blockchain-jd-com.

the class LedgerEditorTest method testWriteDataAccoutKvOp.

@SuppressWarnings("unused")
@Test
public void testWriteDataAccoutKvOp() {
    MemoryKVStorage storage = new MemoryKVStorage();
    LedgerEditor ldgEdt = createLedgerInitEditor(storage);
    LedgerTransactionContext genisisTxCtx = createGenisisTx(ldgEdt, participants);
    LedgerDataSetEditor ldgDS = (LedgerDataSetEditor) genisisTxCtx.getDataset();
    AsymmetricKeypair cryptoKeyPair = signatureFunction.generateKeypair();
    BlockchainKeypair dataKP = new BlockchainKeypair(cryptoKeyPair.getPubKey(), cryptoKeyPair.getPrivKey());
    DataAccount dataAccount = ldgDS.getDataAccountSet().register(dataKP.getAddress(), dataKP.getPubKey(), null);
    dataAccount.getDataset().setValue("A", TypedValue.fromText("abc"), -1);
    TransactionResult tx = genisisTxCtx.commit(TransactionState.SUCCESS);
    LedgerBlock block = ldgEdt.prepare();
    // 提交数据，写入存储；
    ldgEdt.commit();
    // 预期这是第1个区块；
    assertNotNull(block);
    assertNotNull(block.getHash());
    assertEquals(0, block.getHeight());
    // 验证数据读写的一致性；
    BytesValue bytes = dataAccount.getDataset().getValue("A");
    assertEquals(DataType.TEXT, bytes.getType());
    String textValue = bytes.getBytes().toUTF8String();
    assertEquals("abc", textValue);
    // 验证重新加载的正确性；
    LedgerManager manager = new LedgerManager();
    HashDigest ledgerHash = block.getHash();
    LedgerRepository repo = manager.register(ledgerHash, storage, LedgerDataStructure.MERKLE_TREE);
    dataAccount = repo.getDataAccountSet().getAccount(dataKP.getAddress());
    assertNotNull(dataAccount);
    bytes = dataAccount.getDataset().getValue("A");
    assertEquals(DataType.TEXT, bytes.getType());
    textValue = bytes.getBytes().toUTF8String();
    assertEquals("abc", textValue);
    LedgerTransaction tx_init = repo.getTransactionSet().getTransaction(tx.getTransactionHash());
    assertNotNull(tx_init);
}

Example 5 with DataAccount

use of com.jd.blockchain.ledger.core.DataAccount in project jdchain-core by blockchain-jd-com.

the class LedgerQueryController method getDataEntries.

@RequestMapping(method = { RequestMethod.GET, RequestMethod.POST }, path = GET_LATEST_KV_LIST)
@Override
public TypedKVEntry[] getDataEntries(@PathVariable(name = "ledgerHash") HashDigest ledgerHash, @PathVariable(name = "address") String address, @RequestParam("keys") String... keys) {
    if (keys == null || keys.length == 0) {
        return null;
    }
    LedgerQuery ledger = ledgerService.getLedger(ledgerHash);
    LedgerBlock block = ledger.getLatestBlock();
    DataAccountSet dataAccountSet = ledger.getDataAccountSet(block);
    DataAccount dataAccount = dataAccountSet.getAccount(Bytes.fromBase58(address));
    if (dataAccount == null) {
        return null;
    }
    TypedKVEntry[] entries = new TypedKVEntry[keys.length];
    long ver;
    for (int i = 0; i < entries.length; i++) {
        ver = dataAccount.getDataset().getVersion(keys[i]);
        if (ver < 0) {
            entries[i] = new TypedKVData(keys[i], -1, null);
        } else {
            BytesValue value = dataAccount.getDataset().getValue(keys[i], ver);
            entries[i] = new TypedKVData(keys[i], ver, value);
        }
    }
    return entries;
}