Examples with VersioningKVStorage com.jd.blockchain.storage.service.VersioningKVStorage used on opensource projects

Example 1 with VersioningKVStorage

use of com.jd.blockchain.storage.service.VersioningKVStorage in project jdchain-core by blockchain-jd-com.

the class RocksDBStorageTest method test.

@Test
public void test() {
    String dbUri = initEmptyDB("rocksdb_storage_test");
    long expectedVersion;
    try (DbConnectionFactory dbConnFactory = new RocksDBConnectionFactory()) {
        DbConnection conn = dbConnFactory.connect(dbUri);
        VersioningKVStorage verStorage = conn.getStorageService().getVersioningKVStorage();
        ExPolicyKVStorage exStorage = conn.getStorageService().getExPolicyKVStorage();
        expectedVersion = test(verStorage);
        test(exStorage);
    }
    try (DbConnectionFactory dbConnFactory = new RocksDBConnectionFactory()) {
        DbConnection conn = dbConnFactory.connect(dbUri);
        VersioningKVStorage verStorage = conn.getStorageService().getVersioningKVStorage();
        ExPolicyKVStorage exStorage = conn.getStorageService().getExPolicyKVStorage();
        testAfterReload(verStorage, expectedVersion);
        testAfterReload(exStorage);
    }
}

Example 2 with VersioningKVStorage

use of com.jd.blockchain.storage.service.VersioningKVStorage in project jdchain-core by blockchain-jd-com.

the class Test method main.

public static void main(String[] args) {
    Bytes key = Bytes.fromString("test111");
    try (Jedis jedis = new Jedis("192.168.151.33", 6379)) {
        jedis.connect();
        // BytesUtils.toBytes(key, "UTF-8");
        byte[] kbytes = key.toBytes();
        byte[] valueBytes = jedis.get(kbytes);
        String value = BytesUtils.toString(valueBytes, "UTF-8");
        System.out.println(String.format("%s=%s", key, value));
    }
    System.out.println("=================================");
    System.out.println("================= test expolicy storage =================");
    RedisConnectionFactory connFactory = new RedisConnectionFactory();
    try (DbConnection conn = connFactory.connect("redis://192.168.151.33:6379")) {
        ExPolicyKVStorage exKVStorage = conn.getStorageService().getExPolicyKVStorage();
        byte[] valueBytes = exKVStorage.get(key);
        String value = BytesUtils.toString(valueBytes, "UTF-8");
        System.out.println(String.format("%s=%s", key, value));
        System.out.println(String.format("%s=%s", key, value));
        boolean success = exKVStorage.set(key, BytesUtils.toBytes("New Value by ExPolicyStorage interface..."), ExPolicy.NOT_EXISTING);
        System.out.println("update key when NX " + (success ? "success" : "fail"));
        success = exKVStorage.set(key, BytesUtils.toBytes("New Value by ExPolicyStorage interface..."), ExPolicy.EXISTING);
        System.out.println("update key when XX " + (success ? "success" : "fail"));
        valueBytes = exKVStorage.get(key);
        value = BytesUtils.toString(valueBytes, "UTF-8");
        System.out.println(String.format("Retrieve... %s=%s", key, value));
    } catch (Exception ex) {
        ex.printStackTrace();
    }
    System.out.println("=================================");
    try (DbConnection conn = connFactory.connect("redis://192.168.151.33:6379/0")) {
        ExPolicyKVStorage exKVStorage = conn.getStorageService().getExPolicyKVStorage();
        byte[] valueBytes = exKVStorage.get(key);
        String value = BytesUtils.toString(valueBytes, "UTF-8");
        System.out.println(String.format("%s=%s", key, value));
    } catch (Exception ex) {
        ex.printStackTrace();
    }
    System.out.println("=================================");
    System.out.println("================= test versioning storage =================");
    Bytes addr = Bytes.fromString("User001");
    try (DbConnection conn = connFactory.connect("redis://192.168.151.33:6379/0")) {
        VersioningKVStorage verStorage = conn.getStorageService().getVersioningKVStorage();
        long version = verStorage.getVersion(addr);
        System.out.println(String.format("Version of key[%s]=%s", addr, version));
        byte[] v1 = BytesUtils.toBytes("value-" + version);
        version = verStorage.set(addr, v1, version);
        System.out.println(String.format("Update[%s] to V1, version=%s", addr, version));
        byte[] v2 = BytesUtils.toBytes("value-" + version);
        version = verStorage.set(addr, v2, version);
        System.out.println(String.format("Update[%s] to V2, version=%s", addr, version));
        byte[] v3 = BytesUtils.toBytes("value-" + version);
        version = verStorage.set(addr, v3, version);
        System.out.println(String.format("Update[%s] to V3, version=%s", addr, version));
        version = verStorage.getVersion(addr);
        System.out.println(String.format("Now the latest version of key[%s]=%s", addr, version));
        for (int i = 0; i <= version; i++) {
            String value = BytesUtils.toString(verStorage.get(addr, i));
            System.out.println(String.format("The version[%s] value of key[%s] is :%s", i, addr, value));
        }
    } catch (Exception ex) {
        ex.printStackTrace();
    }
    System.out.println("=================================");
}

Example 3 with VersioningKVStorage

use of com.jd.blockchain.storage.service.VersioningKVStorage in project jdchain-core by blockchain-jd-com.

the class LedgerManager method register.

@Override
public LedgerRepository register(HashDigest ledgerHash, KVStorageService storageService, LedgerDataStructure dataStructure) {
    if (ledgers.containsKey(ledgerHash)) {
        LedgerRepositoryContext ledgerCtx = ledgers.get(ledgerHash);
        return ledgerCtx.ledgerRepo;
    }
    // 加载账本数据库；
    VersioningKVStorage ledgerVersioningStorage = storageService.getVersioningKVStorage();
    ExPolicyKVStorage ledgerExPolicyStorage = storageService.getExPolicyKVStorage();
    // 数据锚定merkle tree的方式
    LedgerRepository ledgerRepo = new LedgerRepositoryImpl(ledgerHash, LEDGER_PREFIX, ledgerExPolicyStorage, ledgerVersioningStorage, dataStructure);
    // 校验 crypto service provider ；
    CryptoSetting cryptoSetting = ledgerRepo.getAdminInfo().getSettings().getCryptoSetting();
    checkCryptoSetting(cryptoSetting, ledgerHash);
    // 创建账本上下文；
    LedgerRepositoryContext ledgerCtx = new LedgerRepositoryContext(ledgerRepo, storageService);
    ledgers.put(ledgerHash, ledgerCtx);
    return ledgerRepo;
}