Examples with Block neo.model.core.Block used on opensource projects

Example 21 with Block

use of neo.model.core.Block in project neo-java by coranos.

the class RemoteNodeControllerRunnable method run.

/**
 * the run method.
 */
@Override
public void run() {
    LOG.debug("STARTED RemoteNodeControllerRunnable run {}", data.getHostAddress());
    final long startTimeMs = System.currentTimeMillis();
    final LocalNodeData localNodeData = localControllerNode.getLocalNodeData();
    final long readTimeOut = localNodeData.getRpcServerTimeoutMillis();
    final long magic = localNodeData.getMagic();
    final int localPort = localNodeData.getTcpPort();
    final int nonce = localNodeData.getNonce();
    final Block maxStartHeightBlock = localNodeData.getBlockDb().getHeaderOfBlockWithMaxIndex();
    final long startHeight;
    if (maxStartHeightBlock == null) {
        startHeight = 0;
    } else {
        startHeight = maxStartHeightBlock.getIndexAsLong();
    }
    data.getSendQueue().add(new Message(magic, CommandEnum.VERSION, PayloadUtil.getVersionPayload(localPort, nonce, startHeight).toByteArray()));
    data.getSendQueue().add(new Message(magic, CommandEnum.VERACK));
    try {
        try (SocketWrapper s = localNodeData.getSocketFactory().newSocketWrapper()) {
            s.setSoTimeout(2000);
            s.connect(data.getTcpAddressAndPort(), 2000);
            try (OutputStream out = s.getOutputStream();
                InputStream in = s.getInputStream()) {
                data.setGoodPeer(true);
                while (data.isGoodPeer()) {
                    sendMessages(out);
                    out.flush();
                    try {
                        Thread.sleep(data.getSleepIntervalMs());
                    } catch (final InterruptedException e) {
                        LOG.debug("InterruptedException[1], stopping. {}", e.getMessage());
                        data.setGoodPeer(false);
                    }
                    if (data.isGoodPeer()) {
                        recieveMessages(readTimeOut, magic, in);
                    }
                    final long currTimeMs = System.currentTimeMillis();
                    final long recycleTimeMs = startTimeMs + data.getRecycleIntervalMs();
                    if (recycleTimeMs < currTimeMs) {
                        LOG.debug("recycling remote node {}", data.getHostAddress());
                        data.setGoodPeer(false);
                    }
                    if (data.isGoodPeer()) {
                        try {
                            Thread.sleep(data.getSleepIntervalMs());
                        } catch (final InterruptedException e) {
                            LOG.debug("InterruptedException[2], stopping. {}", e.getMessage());
                            data.setGoodPeer(false);
                        }
                    }
                }
            }
        } catch (final SocketTimeoutException e) {
            LOG.trace("SocketTimeoutException[2] from {}, closing peer", data.getHostAddress());
            LOG.trace("SocketTimeoutException[2]", e);
            data.setGoodPeer(false);
        } catch (final ConnectException e) {
            LOG.trace("ConnectException from {}, closing peer", data.getHostAddress());
            LOG.trace("ConnectException", e);
            data.setGoodPeer(false);
        } catch (final MessageFormatException e) {
            LOG.trace("MessageFormatException from {}, closing peer", data.getHostAddress());
            LOG.trace("MessageFormatException", e);
            data.setGoodPeer(false);
        } catch (final SocketException e) {
            if (e.getMessage().equals("Broken pipe (Write failed)")) {
                LOG.trace("SocketException from {}, broken pipe, closing peer", data.getHostAddress());
            } else if (e.getMessage().equals("Operation timed out (Read failed)")) {
                LOG.trace("SocketException from {}, timeout, closing peer", data.getHostAddress());
            } else if (e.getMessage().equals("Connection reset")) {
                LOG.trace("SocketException from {}, connection reset, closing peer", data.getHostAddress());
            } else if (e.getMessage().equals("Network is unreachable (connect failed)")) {
                LOG.trace("SocketException from {}, unreachable network, closing peer", data.getHostAddress());
            } else if (e.getMessage().equals("Protocol wrong type for socket (Write failed)")) {
                LOG.trace("SocketException from {}, wrong protocol, closing peer", data.getHostAddress());
            } else {
                LOG.error("SocketException from {}, closing peer", data.getHostAddress());
                LOG.error("SocketException", e);
            }
            data.setGoodPeer(false);
        } catch (final ClosedChannelException e) {
            LOG.trace("ClosedChannelException from {}, closing peer", data.getHostAddress());
            data.setGoodPeer(false);
        }
    } catch (final Exception e) {
        LOG.error("error", e);
        LOG.debug("FAILURE RemoteNodeControllerRunnable run");
        localControllerNode.onSocketClose(RemoteNodeControllerRunnable.this);
        return;
    }
    localControllerNode.onSocketClose(RemoteNodeControllerRunnable.this);
    LOG.debug("SUCCESS RemoteNodeControllerRunnable run");
}

Example 22 with Block

use of neo.model.core.Block in project neo-java by coranos.

the class RpcServerUtil method onGetBlock.

/**
 * responds to a "getblock" command.
 *
 * @param controller
 *            the controller to use.
 * @param id
 *            the request id to use.
 * @param params
 *            the parameters to use.
 * @return the response.
 */
private static JSONObject onGetBlock(final LocalControllerNode controller, final int id, final JSONArray params) {
    if (params.length() == 0) {
        final JSONObject response = new JSONObject();
        response.put(ERROR, "no parameters, expected a hash or an index");
        response.put(EXPECTED, 0);
        response.put(ACTUAL, NULL);
        return response;
    } else {
        final boolean verbose;
        if (params.length() >= 2) {
            if (params.get(1) instanceof Number) {
                final long index = params.getLong(1);
                verbose = index == 1;
            } else {
                verbose = false;
            }
        } else {
            verbose = false;
        }
        final Block block;
        final BlockDb blockDb = controller.getLocalNodeData().getBlockDb();
        if (params.get(0) instanceof String) {
            final String hashStr = params.getString(0);
            final byte[] ba = ModelUtil.decodeHex(hashStr);
            final UInt256 hash = new UInt256(ByteBuffer.wrap(ba));
            try {
                block = blockDb.getFullBlockFromHash(hash);
            } catch (final RuntimeException e) {
                final JSONObject response = new JSONObject();
                response.put(ERROR, e.getMessage());
                response.put(EXPECTED, EXPECTED_GENERIC_HEX);
                response.put(ACTUAL, params.get(0));
                return response;
            }
        } else if (params.get(0) instanceof Number) {
            final long index = params.getLong(0);
            try {
                block = blockDb.getFullBlockFromHeight(index);
            } catch (final RuntimeException e) {
                final JSONObject response = new JSONObject();
                response.put(ERROR, e.getMessage());
                response.put(EXPECTED, 0);
                response.put(ACTUAL, params.get(0));
                return response;
            }
        } else {
            final JSONObject response = new JSONObject();
            response.put(ERROR, "bad parameters, expected a hash or an index");
            response.put(EXPECTED, 0);
            response.put(ACTUAL, params.get(0));
            return response;
        }
        final JSONObject response = new JSONObject();
        response.put(ID, id);
        response.put(JSONRPC, VERSION_2_0);
        if (verbose) {
            response.put(RESULT, block.toJSONObject());
        } else {
            response.put(RESULT, Hex.encodeHexString(block.toByteArray()));
        }
        return response;
    }
}

Example 23 with Block

use of neo.model.core.Block in project neo-java by coranos.

the class RpcServerUtil method onGetBlockCount.

/**
 * responds to a "getblockcount" command.
 *
 * @param controller
 *            the controller to use.
 * @param id
 *            the request id to use.
 * @return the response.
 */
private static JSONObject onGetBlockCount(final LocalControllerNode controller, final int id) {
    final Block block = controller.getLocalNodeData().getBlockDb().getHeaderOfBlockWithMaxIndex();
    if (block == null) {
        final JSONObject response = new JSONObject();
        response.put(RESULT, 0);
        response.put(ID, id);
        response.put(JSONRPC, VERSION_2_0);
        return response;
    } else {
        final JSONObject response = new JSONObject();
        final long index = block.getIndexAsLong();
        response.put(RESULT, index + 1);
        response.put(ID, id);
        response.put(JSONRPC, VERSION_2_0);
        return response;
    }
}

Example 24 with Block

use of neo.model.core.Block in project neo-java by coranos.

the class RpcServerUtil method onGetBlockHash.

/**
 * responds to a "getblockhash" command.
 *
 * @param controller
 *            the controller to use.
 * @param id
 *            the request id to use.
 * @param params
 *            the parameters to use.
 * @return the response.
 */
private static JSONObject onGetBlockHash(final LocalControllerNode controller, final int id, final JSONArray params) {
    if (params.length() == 0) {
        final JSONObject response = new JSONObject();
        response.put(ERROR, "no parameters, expected an index");
        response.put(EXPECTED, 0);
        response.put(ACTUAL, NULL);
        return response;
    } else {
        final long index = params.getLong(0);
        try {
            final Block block = controller.getLocalNodeData().getBlockDb().getHeaderOfBlockFromHeight(index);
            final JSONObject response = new JSONObject();
            response.put(ID, id);
            response.put(JSONRPC, VERSION_2_0);
            response.put(RESULT, block.hash.toHexString());
            return response;
        } catch (final RuntimeException e) {
            final JSONObject response = new JSONObject();
            response.put(ERROR, e.getMessage());
            response.put(EXPECTED, 0);
            response.put(ACTUAL, NULL);
            return response;
        }
    }
}

Example 25 with Block

use of neo.model.core.Block in project neo-java by coranos.

the class BlockDbH2Impl method getHeaderOfBlockWithMaxIndex.

/**
 * return the block with the maximum value in the index column.
 *
 * @return the block with the maximum value in the index column.
 */
@Override
public Block getHeaderOfBlockWithMaxIndex() {
    synchronized (this) {
        if (closed) {
            return null;
        }
    }
    final JdbcTemplate t = new JdbcTemplate(ds);
    final String sql = getSql("getBlockWithMaxIndex");
    final List<byte[]> data = t.queryForList(sql, byte[].class);
    if (data.isEmpty()) {
        return null;
    }
    final Block block = new Block(ByteBuffer.wrap(data.get(0)));
    return block;
}