Examples with Record org.apache.jute.Record used on opensource projects

Example 31 with Record

use of org.apache.jute.Record in project zookeeper by apache.

the class ZooKeeper method removeWatches.

private void removeWatches(int opCode, String path, Watcher watcher, WatcherType watcherType, boolean local, VoidCallback cb, Object ctx) {
    PathUtils.validatePath(path);
    final String clientPath = path;
    final String serverPath = prependChroot(clientPath);
    WatchDeregistration wcb = new WatchDeregistration(clientPath, watcher, watcherType, local, getWatchManager());
    RequestHeader h = new RequestHeader();
    h.setType(opCode);
    Record request = getRemoveWatchesRequest(opCode, watcherType, serverPath);
    cnxn.queuePacket(h, new ReplyHeader(), request, null, cb, clientPath, serverPath, ctx, null, wcb);
}

Example 32 with Record

use of org.apache.jute.Record in project zookeeper by apache.

the class GetProposalFromTxnTest method testGetProposalFromTxn.

/**
 * Test loading proposal from txnlog
 *
 * @throws Exception
 *             an exception might be thrown here
 */
@Test
public void testGetProposalFromTxn() throws Exception {
    File tmpDir = ClientBase.createTmpDir();
    ClientBase.setupTestEnv();
    ZooKeeperServer zks = new ZooKeeperServer(tmpDir, tmpDir, 3000);
    SyncRequestProcessor.setSnapCount(100);
    final int PORT = Integer.parseInt(HOSTPORT.split(":")[1]);
    ServerCnxnFactory f = ServerCnxnFactory.createFactory(PORT, -1);
    f.startup(zks);
    assertTrue(ClientBase.waitForServerUp(HOSTPORT, CONNECTION_TIMEOUT), "waiting for server being up ");
    ZooKeeper zk = ClientBase.createZKClient(HOSTPORT);
    // Generate transaction so we will have some txnlog
    Long[] zxids = new Long[MSG_COUNT];
    try {
        String data = "data";
        byte[] bytes = data.getBytes();
        for (int i = 0; i < MSG_COUNT; i++) {
            Stat stat = new Stat();
            zk.create("/invalidsnap-" + i, bytes, Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
            zk.getData("/invalidsnap-" + i, null, stat);
            zxids[i] = stat.getCzxid();
        }
    } finally {
        zk.close();
    }
    // shutdown and start zookeeper again
    f.shutdown();
    zks.shutdown();
    assertTrue(ClientBase.waitForServerDown(HOSTPORT, CONNECTION_TIMEOUT), "waiting for server to shutdown");
    zks = new ZooKeeperServer(tmpDir, tmpDir, 3000);
    zks.startdata();
    ZKDatabase db = zks.getZKDatabase();
    // Set sizeLimit to be very high number, so we can pull all transactions
    // from txnlog
    Iterator<Proposal> itr = db.getProposalsFromTxnLog(zxids[0], 10000000);
    int createCount = 0;
    ArrayList<Long> retrievedZxids = new ArrayList<Long>(MSG_COUNT);
    // Get zxid of create requests
    while (itr.hasNext()) {
        Proposal proposal = itr.next();
        TxnLogEntry logEntry = SerializeUtils.deserializeTxn(proposal.packet.getData());
        TxnHeader hdr = logEntry.getHeader();
        Record rec = logEntry.getTxn();
        if (hdr.getType() == OpCode.create) {
            retrievedZxids.add(hdr.getZxid());
            createCount++;
        }
    }
    // All zxid should match what we created
    assertTrue(Arrays.equals(zxids, retrievedZxids.toArray(new Long[0])), "Zxids missmatches");
    // There should be 2000 create requests
    assertTrue((createCount == MSG_COUNT), "create proposal count == " + MSG_COUNT);
    // We are requesting half the number of transaction from the snapshot
    // this should exceed threshold (ZKDatabase.snapshotSizeFactor)
    db.setSnapshotSizeFactor(0.33);
    long sizeLimit = db.calculateTxnLogSizeLimit();
    itr = db.getProposalsFromTxnLog(zxids[MSG_COUNT / 2], sizeLimit);
    assertFalse((itr.hasNext()), "Expect empty proposal");
    f.shutdown();
    zks.shutdown();
}

Example 33 with Record

use of org.apache.jute.Record in project zookeeper by apache.

the class LoadFromLogNoServerTest method testPad.

/**
 * Simulates ZOOKEEPER-1069 and verifies that flush() before padLogFile
 * fixes it.
 */
@Test
public void testPad() throws Exception {
    File tmpDir = ClientBase.createTmpDir();
    FileTxnLog txnLog = new FileTxnLog(tmpDir);
    TxnHeader txnHeader = new TxnHeader(0xabcd, 0x123, 0x123, Time.currentElapsedTime(), ZooDefs.OpCode.create);
    Record txn = new CreateTxn("/Test", new byte[0], null, false, 1);
    txnLog.append(txnHeader, txn);
    FileInputStream in = new FileInputStream(tmpDir.getPath() + "/log." + Long.toHexString(txnHeader.getZxid()));
    BinaryInputArchive ia = BinaryInputArchive.getArchive(in);
    FileHeader header = new FileHeader();
    header.deserialize(ia, "fileheader");
    LOG.info("Received magic : {} Expected : {}", header.getMagic(), FileTxnLog.TXNLOG_MAGIC);
    assertTrue(header.getMagic() == FileTxnLog.TXNLOG_MAGIC, "Missing magic number ");
}

Example 34 with Record

use of org.apache.jute.Record in project zookeeper by apache.

the class SerializeUtilsTest method testSerializeRequestWithTxn.

@Test
public void testSerializeRequestWithTxn() throws IOException {
    // Arrange
    TxnHeader header = mock(TxnHeader.class);
    doAnswer(new Answer() {

        @Override
        public Object answer(InvocationOnMock invocation) throws Throwable {
            Object[] args = invocation.getArguments();
            OutputArchive oa = (OutputArchive) args[0];
            oa.writeString("header", "test");
            return null;
        }
    }).when(header).serialize(any(OutputArchive.class), anyString());
    Record txn = mock(Record.class);
    doAnswer(new Answer() {

        @Override
        public Object answer(InvocationOnMock invocation) throws Throwable {
            Object[] args = invocation.getArguments();
            OutputArchive oa = (OutputArchive) args[0];
            oa.writeString("record", "test");
            return null;
        }
    }).when(txn).serialize(any(OutputArchive.class), anyString());
    Request request = new Request(1, 2, 3, header, txn, 4);
    // Act
    byte[] data = SerializeUtils.serializeRequest(request);
    // Assert
    assertNotNull(data);
    InOrder inOrder = inOrder(header, txn);
    inOrder.verify(header).serialize(any(OutputArchive.class), eq("hdr"));
    inOrder.verify(txn).serialize(any(OutputArchive.class), eq("txn"));
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    BinaryOutputArchive boa = BinaryOutputArchive.getArchive(baos);
    boa.writeString("header", "test");
    boa.writeString("record", "test");
    baos.close();
    assertArrayEquals(baos.toByteArray(), data);
}

Example 35 with Record

use of org.apache.jute.Record in project zookeeper by apache.

the class FinalRequestProcessor method processRequest.

public void processRequest(Request request) {
    LOG.debug("Processing request:: {}", request);
    if (LOG.isTraceEnabled()) {
        long traceMask = ZooTrace.CLIENT_REQUEST_TRACE_MASK;
        if (request.type == OpCode.ping) {
            traceMask = ZooTrace.SERVER_PING_TRACE_MASK;
        }
        ZooTrace.logRequest(LOG, traceMask, 'E', request, "");
    }
    ProcessTxnResult rc = null;
    if (!request.isThrottled()) {
        rc = applyRequest(request);
    }
    if (request.cnxn == null) {
        return;
    }
    ServerCnxn cnxn = request.cnxn;
    long lastZxid = zks.getZKDatabase().getDataTreeLastProcessedZxid();
    String lastOp = "NA";
    // Notify ZooKeeperServer that the request has finished so that it can
    // update any request accounting/throttling limits
    zks.decInProcess();
    zks.requestFinished(request);
    Code err = Code.OK;
    Record rsp = null;
    String path = null;
    int responseSize = 0;
    try {
        if (request.getHdr() != null && request.getHdr().getType() == OpCode.error) {
            AuditHelper.addAuditLog(request, rc, true);
            /*
                 * When local session upgrading is disabled, leader will
                 * reject the ephemeral node creation due to session expire.
                 * However, if this is the follower that issue the request,
                 * it will have the correct error code, so we should use that
                 * and report to user
                 */
            if (request.getException() != null) {
                throw request.getException();
            } else {
                throw KeeperException.create(KeeperException.Code.get(((ErrorTxn) request.getTxn()).getErr()));
            }
        }
        KeeperException ke = request.getException();
        if (ke instanceof SessionMovedException) {
            throw ke;
        }
        if (ke != null && request.type != OpCode.multi) {
            throw ke;
        }
        LOG.debug("{}", request);
        if (request.isStale()) {
            ServerMetrics.getMetrics().STALE_REPLIES.add(1);
        }
        if (request.isThrottled()) {
            throw KeeperException.create(Code.THROTTLEDOP);
        }
        AuditHelper.addAuditLog(request, rc);
        switch(request.type) {
            case OpCode.ping:
                {
                    lastOp = "PING";
                    updateStats(request, lastOp, lastZxid);
                    responseSize = cnxn.sendResponse(new ReplyHeader(ClientCnxn.PING_XID, lastZxid, 0), null, "response");
                    return;
                }
            case OpCode.createSession:
                {
                    lastOp = "SESS";
                    updateStats(request, lastOp, lastZxid);
                    zks.finishSessionInit(request.cnxn, true);
                    return;
                }
            case OpCode.multi:
                {
                    lastOp = "MULT";
                    rsp = new MultiResponse();
                    for (ProcessTxnResult subTxnResult : rc.multiResult) {
                        OpResult subResult;
                        switch(subTxnResult.type) {
                            case OpCode.check:
                                subResult = new CheckResult();
                                break;
                            case OpCode.create:
                                subResult = new CreateResult(subTxnResult.path);
                                break;
                            case OpCode.create2:
                            case OpCode.createTTL:
                            case OpCode.createContainer:
                                subResult = new CreateResult(subTxnResult.path, subTxnResult.stat);
                                break;
                            case OpCode.delete:
                            case OpCode.deleteContainer:
                                subResult = new DeleteResult();
                                break;
                            case OpCode.setData:
                                subResult = new SetDataResult(subTxnResult.stat);
                                break;
                            case OpCode.error:
                                subResult = new ErrorResult(subTxnResult.err);
                                if (subTxnResult.err == Code.SESSIONMOVED.intValue()) {
                                    throw new SessionMovedException();
                                }
                                break;
                            default:
                                throw new IOException("Invalid type of op");
                        }
                        ((MultiResponse) rsp).add(subResult);
                    }
                    break;
                }
            case OpCode.multiRead:
                {
                    lastOp = "MLTR";
                    MultiOperationRecord multiReadRecord = new MultiOperationRecord();
                    ByteBufferInputStream.byteBuffer2Record(request.request, multiReadRecord);
                    rsp = new MultiResponse();
                    OpResult subResult;
                    for (Op readOp : multiReadRecord) {
                        try {
                            Record rec;
                            switch(readOp.getType()) {
                                case OpCode.getChildren:
                                    rec = handleGetChildrenRequest(readOp.toRequestRecord(), cnxn, request.authInfo);
                                    subResult = new GetChildrenResult(((GetChildrenResponse) rec).getChildren());
                                    break;
                                case OpCode.getData:
                                    rec = handleGetDataRequest(readOp.toRequestRecord(), cnxn, request.authInfo);
                                    GetDataResponse gdr = (GetDataResponse) rec;
                                    subResult = new GetDataResult(gdr.getData(), gdr.getStat());
                                    break;
                                default:
                                    throw new IOException("Invalid type of readOp");
                            }
                        } catch (KeeperException e) {
                            subResult = new ErrorResult(e.code().intValue());
                        }
                        ((MultiResponse) rsp).add(subResult);
                    }
                    break;
                }
            case OpCode.create:
                {
                    lastOp = "CREA";
                    rsp = new CreateResponse(rc.path);
                    err = Code.get(rc.err);
                    requestPathMetricsCollector.registerRequest(request.type, rc.path);
                    break;
                }
            case OpCode.create2:
            case OpCode.createTTL:
            case OpCode.createContainer:
                {
                    lastOp = "CREA";
                    rsp = new Create2Response(rc.path, rc.stat);
                    err = Code.get(rc.err);
                    requestPathMetricsCollector.registerRequest(request.type, rc.path);
                    break;
                }
            case OpCode.delete:
            case OpCode.deleteContainer:
                {
                    lastOp = "DELE";
                    err = Code.get(rc.err);
                    requestPathMetricsCollector.registerRequest(request.type, rc.path);
                    break;
                }
            case OpCode.setData:
                {
                    lastOp = "SETD";
                    rsp = new SetDataResponse(rc.stat);
                    err = Code.get(rc.err);
                    requestPathMetricsCollector.registerRequest(request.type, rc.path);
                    break;
                }
            case OpCode.reconfig:
                {
                    lastOp = "RECO";
                    rsp = new GetDataResponse(((QuorumZooKeeperServer) zks).self.getQuorumVerifier().toString().getBytes(UTF_8), rc.stat);
                    err = Code.get(rc.err);
                    break;
                }
            case OpCode.setACL:
                {
                    lastOp = "SETA";
                    rsp = new SetACLResponse(rc.stat);
                    err = Code.get(rc.err);
                    requestPathMetricsCollector.registerRequest(request.type, rc.path);
                    break;
                }
            case OpCode.closeSession:
                {
                    lastOp = "CLOS";
                    err = Code.get(rc.err);
                    break;
                }
            case OpCode.sync:
                {
                    lastOp = "SYNC";
                    SyncRequest syncRequest = new SyncRequest();
                    ByteBufferInputStream.byteBuffer2Record(request.request, syncRequest);
                    rsp = new SyncResponse(syncRequest.getPath());
                    requestPathMetricsCollector.registerRequest(request.type, syncRequest.getPath());
                    break;
                }
            case OpCode.check:
                {
                    lastOp = "CHEC";
                    rsp = new SetDataResponse(rc.stat);
                    err = Code.get(rc.err);
                    break;
                }
            case OpCode.exists:
                {
                    lastOp = "EXIS";
                    // TODO we need to figure out the security requirement for this!
                    ExistsRequest existsRequest = new ExistsRequest();
                    ByteBufferInputStream.byteBuffer2Record(request.request, existsRequest);
                    path = existsRequest.getPath();
                    if (path.indexOf('\0') != -1) {
                        throw new KeeperException.BadArgumentsException();
                    }
                    Stat stat = zks.getZKDatabase().statNode(path, existsRequest.getWatch() ? cnxn : null);
                    rsp = new ExistsResponse(stat);
                    requestPathMetricsCollector.registerRequest(request.type, path);
                    break;
                }
            case OpCode.getData:
                {
                    lastOp = "GETD";
                    GetDataRequest getDataRequest = new GetDataRequest();
                    ByteBufferInputStream.byteBuffer2Record(request.request, getDataRequest);
                    path = getDataRequest.getPath();
                    rsp = handleGetDataRequest(getDataRequest, cnxn, request.authInfo);
                    requestPathMetricsCollector.registerRequest(request.type, path);
                    break;
                }
            case OpCode.setWatches:
                {
                    lastOp = "SETW";
                    SetWatches setWatches = new SetWatches();
                    // TODO we really should not need this
                    request.request.rewind();
                    ByteBufferInputStream.byteBuffer2Record(request.request, setWatches);
                    long relativeZxid = setWatches.getRelativeZxid();
                    zks.getZKDatabase().setWatches(relativeZxid, setWatches.getDataWatches(), setWatches.getExistWatches(), setWatches.getChildWatches(), Collections.emptyList(), Collections.emptyList(), cnxn);
                    break;
                }
            case OpCode.setWatches2:
                {
                    lastOp = "STW2";
                    SetWatches2 setWatches = new SetWatches2();
                    // TODO we really should not need this
                    request.request.rewind();
                    ByteBufferInputStream.byteBuffer2Record(request.request, setWatches);
                    long relativeZxid = setWatches.getRelativeZxid();
                    zks.getZKDatabase().setWatches(relativeZxid, setWatches.getDataWatches(), setWatches.getExistWatches(), setWatches.getChildWatches(), setWatches.getPersistentWatches(), setWatches.getPersistentRecursiveWatches(), cnxn);
                    break;
                }
            case OpCode.addWatch:
                {
                    lastOp = "ADDW";
                    AddWatchRequest addWatcherRequest = new AddWatchRequest();
                    ByteBufferInputStream.byteBuffer2Record(request.request, addWatcherRequest);
                    zks.getZKDatabase().addWatch(addWatcherRequest.getPath(), cnxn, addWatcherRequest.getMode());
                    rsp = new ErrorResponse(0);
                    break;
                }
            case OpCode.getACL:
                {
                    lastOp = "GETA";
                    GetACLRequest getACLRequest = new GetACLRequest();
                    ByteBufferInputStream.byteBuffer2Record(request.request, getACLRequest);
                    path = getACLRequest.getPath();
                    DataNode n = zks.getZKDatabase().getNode(path);
                    if (n == null) {
                        throw new KeeperException.NoNodeException();
                    }
                    zks.checkACL(request.cnxn, zks.getZKDatabase().aclForNode(n), ZooDefs.Perms.READ | ZooDefs.Perms.ADMIN, request.authInfo, path, null);
                    Stat stat = new Stat();
                    List<ACL> acl = zks.getZKDatabase().getACL(path, stat);
                    requestPathMetricsCollector.registerRequest(request.type, getACLRequest.getPath());
                    try {
                        zks.checkACL(request.cnxn, zks.getZKDatabase().aclForNode(n), ZooDefs.Perms.ADMIN, request.authInfo, path, null);
                        rsp = new GetACLResponse(acl, stat);
                    } catch (KeeperException.NoAuthException e) {
                        List<ACL> acl1 = new ArrayList<ACL>(acl.size());
                        for (ACL a : acl) {
                            if ("digest".equals(a.getId().getScheme())) {
                                Id id = a.getId();
                                Id id1 = new Id(id.getScheme(), id.getId().replaceAll(":.*", ":x"));
                                acl1.add(new ACL(a.getPerms(), id1));
                            } else {
                                acl1.add(a);
                            }
                        }
                        rsp = new GetACLResponse(acl1, stat);
                    }
                    break;
                }
            case OpCode.getChildren:
                {
                    lastOp = "GETC";
                    GetChildrenRequest getChildrenRequest = new GetChildrenRequest();
                    ByteBufferInputStream.byteBuffer2Record(request.request, getChildrenRequest);
                    path = getChildrenRequest.getPath();
                    rsp = handleGetChildrenRequest(getChildrenRequest, cnxn, request.authInfo);
                    requestPathMetricsCollector.registerRequest(request.type, path);
                    break;
                }
            case OpCode.getAllChildrenNumber:
                {
                    lastOp = "GETACN";
                    GetAllChildrenNumberRequest getAllChildrenNumberRequest = new GetAllChildrenNumberRequest();
                    ByteBufferInputStream.byteBuffer2Record(request.request, getAllChildrenNumberRequest);
                    path = getAllChildrenNumberRequest.getPath();
                    DataNode n = zks.getZKDatabase().getNode(path);
                    if (n == null) {
                        throw new KeeperException.NoNodeException();
                    }
                    zks.checkACL(request.cnxn, zks.getZKDatabase().aclForNode(n), ZooDefs.Perms.READ, request.authInfo, path, null);
                    int number = zks.getZKDatabase().getAllChildrenNumber(path);
                    rsp = new GetAllChildrenNumberResponse(number);
                    break;
                }
            case OpCode.getChildren2:
                {
                    lastOp = "GETC";
                    GetChildren2Request getChildren2Request = new GetChildren2Request();
                    ByteBufferInputStream.byteBuffer2Record(request.request, getChildren2Request);
                    Stat stat = new Stat();
                    path = getChildren2Request.getPath();
                    DataNode n = zks.getZKDatabase().getNode(path);
                    if (n == null) {
                        throw new KeeperException.NoNodeException();
                    }
                    zks.checkACL(request.cnxn, zks.getZKDatabase().aclForNode(n), ZooDefs.Perms.READ, request.authInfo, path, null);
                    List<String> children = zks.getZKDatabase().getChildren(path, stat, getChildren2Request.getWatch() ? cnxn : null);
                    rsp = new GetChildren2Response(children, stat);
                    requestPathMetricsCollector.registerRequest(request.type, path);
                    break;
                }
            case OpCode.checkWatches:
                {
                    lastOp = "CHKW";
                    CheckWatchesRequest checkWatches = new CheckWatchesRequest();
                    ByteBufferInputStream.byteBuffer2Record(request.request, checkWatches);
                    WatcherType type = WatcherType.fromInt(checkWatches.getType());
                    path = checkWatches.getPath();
                    boolean containsWatcher = zks.getZKDatabase().containsWatcher(path, type, cnxn);
                    if (!containsWatcher) {
                        String msg = String.format(Locale.ENGLISH, "%s (type: %s)", path, type);
                        throw new KeeperException.NoWatcherException(msg);
                    }
                    requestPathMetricsCollector.registerRequest(request.type, checkWatches.getPath());
                    break;
                }
            case OpCode.removeWatches:
                {
                    lastOp = "REMW";
                    RemoveWatchesRequest removeWatches = new RemoveWatchesRequest();
                    ByteBufferInputStream.byteBuffer2Record(request.request, removeWatches);
                    WatcherType type = WatcherType.fromInt(removeWatches.getType());
                    path = removeWatches.getPath();
                    boolean removed = zks.getZKDatabase().removeWatch(path, type, cnxn);
                    if (!removed) {
                        String msg = String.format(Locale.ENGLISH, "%s (type: %s)", path, type);
                        throw new KeeperException.NoWatcherException(msg);
                    }
                    requestPathMetricsCollector.registerRequest(request.type, removeWatches.getPath());
                    break;
                }
            case OpCode.whoAmI:
                {
                    lastOp = "HOMI";
                    rsp = new WhoAmIResponse(AuthUtil.getClientInfos(request.authInfo));
                    break;
                }
            case OpCode.getEphemerals:
                {
                    lastOp = "GETE";
                    GetEphemeralsRequest getEphemerals = new GetEphemeralsRequest();
                    ByteBufferInputStream.byteBuffer2Record(request.request, getEphemerals);
                    String prefixPath = getEphemerals.getPrefixPath();
                    Set<String> allEphems = zks.getZKDatabase().getDataTree().getEphemerals(request.sessionId);
                    List<String> ephemerals = new ArrayList<>();
                    if (prefixPath == null || prefixPath.trim().isEmpty() || "/".equals(prefixPath.trim())) {
                        ephemerals.addAll(allEphems);
                    } else {
                        for (String p : allEphems) {
                            if (p.startsWith(prefixPath)) {
                                ephemerals.add(p);
                            }
                        }
                    }
                    rsp = new GetEphemeralsResponse(ephemerals);
                    break;
                }
        }
    } catch (SessionMovedException e) {
        // session moved is a connection level error, we need to tear
        // down the connection otw ZOOKEEPER-710 might happen
        // ie client on slow follower starts to renew session, fails
        // before this completes, then tries the fast follower (leader)
        // and is successful, however the initial renew is then
        // successfully fwd/processed by the leader and as a result
        // the client and leader disagree on where the client is most
        // recently attached (and therefore invalid SESSION MOVED generated)
        cnxn.sendCloseSession();
        return;
    } catch (KeeperException e) {
        err = e.code();
    } catch (Exception e) {
        // log at error level as we are returning a marshalling
        // error to the user
        LOG.error("Failed to process {}", request, e);
        StringBuilder sb = new StringBuilder();
        ByteBuffer bb = request.request;
        bb.rewind();
        while (bb.hasRemaining()) {
            sb.append(String.format("%02x", (0xff & bb.get())));
        }
        LOG.error("Dumping request buffer for request type {}: 0x{}", Request.op2String(request.type), sb);
        err = Code.MARSHALLINGERROR;
    }
    ReplyHeader hdr = new ReplyHeader(request.cxid, lastZxid, err.intValue());
    updateStats(request, lastOp, lastZxid);
    try {
        if (path == null || rsp == null) {
            responseSize = cnxn.sendResponse(hdr, rsp, "response");
        } else {
            int opCode = request.type;
            Stat stat = null;
            // so these values are passed along with the response.
            switch(opCode) {
                case OpCode.getData:
                    {
                        GetDataResponse getDataResponse = (GetDataResponse) rsp;
                        stat = getDataResponse.getStat();
                        responseSize = cnxn.sendResponse(hdr, rsp, "response", path, stat, opCode);
                        break;
                    }
                case OpCode.getChildren2:
                    {
                        GetChildren2Response getChildren2Response = (GetChildren2Response) rsp;
                        stat = getChildren2Response.getStat();
                        responseSize = cnxn.sendResponse(hdr, rsp, "response", path, stat, opCode);
                        break;
                    }
                default:
                    responseSize = cnxn.sendResponse(hdr, rsp, "response");
            }
        }
        if (request.type == OpCode.closeSession) {
            cnxn.sendCloseSession();
        }
    } catch (IOException e) {
        LOG.error("FIXMSG", e);
    } finally {
        ServerMetrics.getMetrics().RESPONSE_BYTES.add(responseSize);
    }
}