Examples with TApplicationException org.apache.thrift.TApplicationException used on opensource projects

Example 21 with TApplicationException

use of org.apache.thrift.TApplicationException in project dubbo by alibaba.

the class ThriftCodec method decode.

private Object decode(TProtocol protocol) throws IOException {
    // version
    String serviceName;
    long id;
    TMessage message;
    try {
        protocol.readI16();
        protocol.readByte();
        serviceName = protocol.readString();
        id = protocol.readI64();
        message = protocol.readMessageBegin();
    } catch (TException e) {
        throw new IOException(e.getMessage(), e);
    }
    if (message.type == TMessageType.CALL) {
        RpcInvocation result = new RpcInvocation();
        result.setAttachment(Constants.INTERFACE_KEY, serviceName);
        result.setMethodName(message.name);
        String argsClassName = ExtensionLoader.getExtensionLoader(ClassNameGenerator.class).getExtension(ThriftClassNameGenerator.NAME).generateArgsClassName(serviceName, message.name);
        if (StringUtils.isEmpty(argsClassName)) {
            throw new RpcException(RpcException.SERIALIZATION_EXCEPTION, "The specified interface name incorrect.");
        }
        Class clazz = cachedClass.get(argsClassName);
        if (clazz == null) {
            try {
                clazz = ClassHelper.forNameWithThreadContextClassLoader(argsClassName);
                cachedClass.putIfAbsent(argsClassName, clazz);
            } catch (ClassNotFoundException e) {
                throw new RpcException(RpcException.SERIALIZATION_EXCEPTION, e.getMessage(), e);
            }
        }
        TBase args;
        try {
            args = (TBase) clazz.newInstance();
        } catch (InstantiationException e) {
            throw new RpcException(RpcException.SERIALIZATION_EXCEPTION, e.getMessage(), e);
        } catch (IllegalAccessException e) {
            throw new RpcException(RpcException.SERIALIZATION_EXCEPTION, e.getMessage(), e);
        }
        try {
            args.read(protocol);
            protocol.readMessageEnd();
        } catch (TException e) {
            throw new RpcException(RpcException.SERIALIZATION_EXCEPTION, e.getMessage(), e);
        }
        List<Object> parameters = new ArrayList<Object>();
        List<Class<?>> parameterTypes = new ArrayList<Class<?>>();
        int index = 1;
        while (true) {
            TFieldIdEnum fieldIdEnum = args.fieldForId(index++);
            if (fieldIdEnum == null) {
                break;
            }
            String fieldName = fieldIdEnum.getFieldName();
            String getMethodName = ThriftUtils.generateGetMethodName(fieldName);
            Method getMethod;
            try {
                getMethod = clazz.getMethod(getMethodName);
            } catch (NoSuchMethodException e) {
                throw new RpcException(RpcException.SERIALIZATION_EXCEPTION, e.getMessage(), e);
            }
            parameterTypes.add(getMethod.getReturnType());
            try {
                parameters.add(getMethod.invoke(args));
            } catch (IllegalAccessException e) {
                throw new RpcException(RpcException.SERIALIZATION_EXCEPTION, e.getMessage(), e);
            } catch (InvocationTargetException e) {
                throw new RpcException(RpcException.SERIALIZATION_EXCEPTION, e.getMessage(), e);
            }
        }
        result.setArguments(parameters.toArray());
        result.setParameterTypes(parameterTypes.toArray(new Class[parameterTypes.size()]));
        Request request = new Request(id);
        request.setData(result);
        cachedRequest.putIfAbsent(id, RequestData.create(message.seqid, serviceName, message.name));
        return request;
    } else if (message.type == TMessageType.EXCEPTION) {
        TApplicationException exception;
        try {
            exception = TApplicationException.read(protocol);
            protocol.readMessageEnd();
        } catch (TException e) {
            throw new IOException(e.getMessage(), e);
        }
        RpcResult result = new RpcResult();
        result.setException(new RpcException(exception.getMessage()));
        Response response = new Response();
        response.setResult(result);
        response.setId(id);
        return response;
    } else if (message.type == TMessageType.REPLY) {
        String resultClassName = ExtensionLoader.getExtensionLoader(ClassNameGenerator.class).getExtension(ThriftClassNameGenerator.NAME).generateResultClassName(serviceName, message.name);
        if (StringUtils.isEmpty(resultClassName)) {
            throw new IllegalArgumentException(new StringBuilder(32).append("Could not infer service result class name from service name ").append(serviceName).append(", the service name you specified may not generated by thrift idl compiler").toString());
        }
        Class<?> clazz = cachedClass.get(resultClassName);
        if (clazz == null) {
            try {
                clazz = ClassHelper.forNameWithThreadContextClassLoader(resultClassName);
                cachedClass.putIfAbsent(resultClassName, clazz);
            } catch (ClassNotFoundException e) {
                throw new RpcException(RpcException.SERIALIZATION_EXCEPTION, e.getMessage(), e);
            }
        }
        TBase<?, ? extends TFieldIdEnum> result;
        try {
            result = (TBase<?, ?>) clazz.newInstance();
        } catch (InstantiationException e) {
            throw new RpcException(RpcException.SERIALIZATION_EXCEPTION, e.getMessage(), e);
        } catch (IllegalAccessException e) {
            throw new RpcException(RpcException.SERIALIZATION_EXCEPTION, e.getMessage(), e);
        }
        try {
            result.read(protocol);
            protocol.readMessageEnd();
        } catch (TException e) {
            throw new RpcException(RpcException.SERIALIZATION_EXCEPTION, e.getMessage(), e);
        }
        Object realResult = null;
        int index = 0;
        while (true) {
            TFieldIdEnum fieldIdEnum = result.fieldForId(index++);
            if (fieldIdEnum == null) {
                break;
            }
            Field field;
            try {
                field = clazz.getDeclaredField(fieldIdEnum.getFieldName());
                field.setAccessible(true);
            } catch (NoSuchFieldException e) {
                throw new RpcException(RpcException.SERIALIZATION_EXCEPTION, e.getMessage(), e);
            }
            try {
                realResult = field.get(result);
            } catch (IllegalAccessException e) {
                throw new RpcException(RpcException.SERIALIZATION_EXCEPTION, e.getMessage(), e);
            }
            if (realResult != null) {
                break;
            }
        }
        Response response = new Response();
        response.setId(id);
        RpcResult rpcResult = new RpcResult();
        if (realResult instanceof Throwable) {
            rpcResult.setException((Throwable) realResult);
        } else {
            rpcResult.setValue(realResult);
        }
        response.setResult(rpcResult);
        return response;
    } else {
        // Impossible
        throw new IOException();
    }
}

Example 22 with TApplicationException

use of org.apache.thrift.TApplicationException in project dubbo by alibaba.

the class ThriftCodec method encodeResponse.

private void encodeResponse(Channel channel, ChannelBuffer buffer, Response response) throws IOException {
    RpcResult result = (RpcResult) response.getResult();
    RequestData rd = cachedRequest.get(response.getId());
    String resultClassName = ExtensionLoader.getExtensionLoader(ClassNameGenerator.class).getExtension(channel.getUrl().getParameter(ThriftConstants.CLASS_NAME_GENERATOR_KEY, ThriftClassNameGenerator.NAME)).generateResultClassName(rd.serviceName, rd.methodName);
    if (StringUtils.isEmpty(resultClassName)) {
        throw new RpcException(RpcException.SERIALIZATION_EXCEPTION, new StringBuilder(32).append("Could not encode response, the specified interface may be incorrect.").toString());
    }
    Class clazz = cachedClass.get(resultClassName);
    if (clazz == null) {
        try {
            clazz = ClassHelper.forNameWithThreadContextClassLoader(resultClassName);
            cachedClass.putIfAbsent(resultClassName, clazz);
        } catch (ClassNotFoundException e) {
            throw new RpcException(RpcException.SERIALIZATION_EXCEPTION, e.getMessage(), e);
        }
    }
    TBase resultObj;
    try {
        resultObj = (TBase) clazz.newInstance();
    } catch (InstantiationException e) {
        throw new RpcException(RpcException.SERIALIZATION_EXCEPTION, e.getMessage(), e);
    } catch (IllegalAccessException e) {
        throw new RpcException(RpcException.SERIALIZATION_EXCEPTION, e.getMessage(), e);
    }
    TApplicationException applicationException = null;
    TMessage message;
    if (result.hasException()) {
        Throwable throwable = result.getException();
        int index = 1;
        boolean found = false;
        while (true) {
            TFieldIdEnum fieldIdEnum = resultObj.fieldForId(index++);
            if (fieldIdEnum == null) {
                break;
            }
            String fieldName = fieldIdEnum.getFieldName();
            String getMethodName = ThriftUtils.generateGetMethodName(fieldName);
            String setMethodName = ThriftUtils.generateSetMethodName(fieldName);
            Method getMethod;
            Method setMethod;
            try {
                getMethod = clazz.getMethod(getMethodName);
                if (getMethod.getReturnType().equals(throwable.getClass())) {
                    found = true;
                    setMethod = clazz.getMethod(setMethodName, throwable.getClass());
                    setMethod.invoke(resultObj, throwable);
                }
            } catch (NoSuchMethodException e) {
                throw new RpcException(RpcException.SERIALIZATION_EXCEPTION, e.getMessage(), e);
            } catch (InvocationTargetException e) {
                throw new RpcException(RpcException.SERIALIZATION_EXCEPTION, e.getMessage(), e);
            } catch (IllegalAccessException e) {
                throw new RpcException(RpcException.SERIALIZATION_EXCEPTION, e.getMessage(), e);
            }
        }
        if (!found) {
            applicationException = new TApplicationException(throwable.getMessage());
        }
    } else {
        Object realResult = result.getResult();
        // result field id is 0
        String fieldName = resultObj.fieldForId(0).getFieldName();
        String setMethodName = ThriftUtils.generateSetMethodName(fieldName);
        String getMethodName = ThriftUtils.generateGetMethodName(fieldName);
        Method getMethod;
        Method setMethod;
        try {
            getMethod = clazz.getMethod(getMethodName);
            setMethod = clazz.getMethod(setMethodName, getMethod.getReturnType());
            setMethod.invoke(resultObj, realResult);
        } catch (NoSuchMethodException e) {
            throw new RpcException(RpcException.SERIALIZATION_EXCEPTION, e.getMessage(), e);
        } catch (InvocationTargetException e) {
            throw new RpcException(RpcException.SERIALIZATION_EXCEPTION, e.getMessage(), e);
        } catch (IllegalAccessException e) {
            throw new RpcException(RpcException.SERIALIZATION_EXCEPTION, e.getMessage(), e);
        }
    }
    if (applicationException != null) {
        message = new TMessage(rd.methodName, TMessageType.EXCEPTION, rd.id);
    } else {
        message = new TMessage(rd.methodName, TMessageType.REPLY, rd.id);
    }
    RandomAccessByteArrayOutputStream bos = new RandomAccessByteArrayOutputStream(1024);
    TIOStreamTransport transport = new TIOStreamTransport(bos);
    TBinaryProtocol protocol = new TBinaryProtocol(transport);
    int messageLength;
    int headerLength;
    byte[] bytes = new byte[4];
    try {
        // magic
        protocol.writeI16(MAGIC);
        // message length
        protocol.writeI32(Integer.MAX_VALUE);
        // message header length
        protocol.writeI16(Short.MAX_VALUE);
        // version
        protocol.writeByte(VERSION);
        // service name
        protocol.writeString(rd.serviceName);
        // id
        protocol.writeI64(response.getId());
        protocol.getTransport().flush();
        headerLength = bos.size();
        // message
        protocol.writeMessageBegin(message);
        switch(message.type) {
            case TMessageType.EXCEPTION:
                applicationException.write(protocol);
                break;
            case TMessageType.REPLY:
                resultObj.write(protocol);
                break;
        }
        protocol.writeMessageEnd();
        protocol.getTransport().flush();
        int oldIndex = messageLength = bos.size();
        try {
            TFramedTransport.encodeFrameSize(messageLength, bytes);
            bos.setWriteIndex(MESSAGE_LENGTH_INDEX);
            protocol.writeI32(messageLength);
            bos.setWriteIndex(MESSAGE_HEADER_LENGTH_INDEX);
            protocol.writeI16((short) (0xffff & headerLength));
        } finally {
            bos.setWriteIndex(oldIndex);
        }
    } catch (TException e) {
        throw new RpcException(RpcException.SERIALIZATION_EXCEPTION, e.getMessage(), e);
    }
    buffer.writeBytes(bytes);
    buffer.writeBytes(bos.toByteArray());
}

Example 23 with TApplicationException

use of org.apache.thrift.TApplicationException in project dubbo by alibaba.

the class ThriftCodecTest method testDecodeExceptionResponse.

@Test
public void testDecodeExceptionResponse() throws Exception {
    URL url = URL.valueOf(ThriftProtocol.NAME + "://127.0.0.1:40880/" + Demo.class.getName());
    Channel channel = new MockedChannel(url);
    RandomAccessByteArrayOutputStream bos = new RandomAccessByteArrayOutputStream(128);
    Request request = createRequest();
    DefaultFuture future = new DefaultFuture(channel, request, 10);
    TMessage message = new TMessage("echoString", TMessageType.EXCEPTION, ThriftCodec.getSeqId());
    TTransport transport = new TIOStreamTransport(bos);
    TBinaryProtocol protocol = new TBinaryProtocol(transport);
    TApplicationException exception = new TApplicationException();
    int messageLength, headerLength;
    // prepare
    protocol.writeI16(ThriftCodec.MAGIC);
    protocol.writeI32(Integer.MAX_VALUE);
    protocol.writeI16(Short.MAX_VALUE);
    protocol.writeByte(ThriftCodec.VERSION);
    protocol.writeString(Demo.class.getName());
    protocol.writeI64(request.getId());
    protocol.getTransport().flush();
    headerLength = bos.size();
    protocol.writeMessageBegin(message);
    exception.write(protocol);
    protocol.writeMessageEnd();
    protocol.getTransport().flush();
    int oldIndex = messageLength = bos.size();
    try {
        bos.setWriteIndex(ThriftCodec.MESSAGE_LENGTH_INDEX);
        protocol.writeI32(messageLength);
        bos.setWriteIndex(ThriftCodec.MESSAGE_HEADER_LENGTH_INDEX);
        protocol.writeI16((short) (0xffff & headerLength));
    } finally {
        bos.setWriteIndex(oldIndex);
    }
    // prepare
    ChannelBuffer bis = ChannelBuffers.wrappedBuffer(encodeFrame(bos.toByteArray()));
    Object obj = codec.decode((Channel) null, bis);
    Assert.assertNotNull(obj);
    Assert.assertTrue(obj instanceof Response);
    Response response = (Response) obj;
    Assert.assertTrue(response.getResult() instanceof RpcResult);
    RpcResult result = (RpcResult) response.getResult();
    Assert.assertTrue(result.hasException());
    Assert.assertTrue(result.getException() instanceof RpcException);
}

Example 24 with TApplicationException

use of org.apache.thrift.TApplicationException in project netvirt by opendaylight.

the class BgpConfigurationManager method replay.

@SuppressWarnings("checkstyle:IllegalCatch")
public synchronized boolean replay() throws InterruptedException, TimeoutException, ExecutionException {
    boolean replaySucceded = true;
    String host = getConfigHost();
    int port = getConfigPort();
    LOG.error("connecting  to bgp host {} ", host);
    boolean res = bgpRouter.connect(host, port);
    if (!res) {
        LOG.error("Cannot connect to BGP config server at {}:{}{}", host, port, config != null ? "; Configuration Replay aborted" : "");
        return replaySucceded;
    }
    config = getConfig();
    if (config == null) {
        LOG.error("bgp config is empty nothing to push to bgp");
        return replaySucceded;
    }
    BgpRouter br = bgpRouter;
    AsId asId = config.getAsId();
    if (asId == null) {
        LOG.error("bgp as-id is null");
        return replaySucceded;
    }
    long asNum = asId.getLocalAs();
    IpAddress routerId = asId.getRouterId();
    String rid = routerId == null ? "" : new String(routerId.getValue());
    int stalepathTime = (int) getStalePathtime(RESTART_DEFAULT_GR, config.getAsId());
    boolean announceFbit = true;
    boolean replayDone = false;
    final int numberOfStartBgpRetries = 3;
    RetryOnException startBgpRetry = new RetryOnException(numberOfStartBgpRetries);
    do {
        try {
            LOG.debug("Replaying BGPConfig ");
            br.startBgp(asNum, rid, stalepathTime, announceFbit);
            LOG.debug("Replay BGPConfig successful");
            replayDone = true;
            break;
        } catch (BgpRouterException bre) {
            if (bre.getErrorCode() == BgpRouterException.BGP_ERR_ACTIVE) {
                LOG.debug("Starting the routesync for exception", bre);
                startBgpRetry.errorOccured();
                if (!startBgpRetry.shouldRetry()) {
                    LOG.debug("starting route sync for BgpRouter exception");
                    doRouteSync();
                }
            } else {
                LOG.error("Replay: startBgp() received exception error {} : ", bre.getErrorCode(), bre);
                startBgpRetry.errorOccured();
            }
        } catch (TApplicationException tae) {
            if (tae.getType() == BgpRouterException.BGP_ERR_ACTIVE) {
                LOG.debug("Starting the routesync for exception", tae);
                startBgpRetry.errorOccured();
                if (!startBgpRetry.shouldRetry()) {
                    LOG.debug("starting route sync for Thrift BGP_ERR_ACTIVE exception");
                    doRouteSync();
                }
            } else if (tae.getType() == BgpRouterException.BGP_ERR_COMMON_FAILURE) {
                LOG.debug("Starting the routesync for AS-ID started exception", tae);
                startBgpRetry.errorOccured();
                if (!startBgpRetry.shouldRetry()) {
                    LOG.debug("starting route sync for Thrift BGP_ERR_COMMON_FAILURE exception");
                    doRouteSync();
                }
            } else {
                LOG.error("Replay: startBgp() received exception type {}: ", tae.getType(), tae);
                startBgpRetry.errorOccured();
            }
        } catch (Exception e) {
            // not unusual. We may have restarted & BGP is already on
            LOG.error("Replay:startBgp() received exception: ", e);
            startBgpRetry.errorOccured();
        }
    } while (startBgpRetry.shouldRetry());
    replaySucceded = replayDone;
    startBgpCountersTask();
    startBgpAlarmsTask();
    /*
         * commenting this due to a bug with QBGP. Will uncomment once QBGP fix is done.
         * This wont have any functional impacts
         */
    // try {
    // br.delayEOR(delayEorSeconds);
    // } catch (TException | BgpRouterException e) {
    // LOG.error("Replay: delayEOR() number of seconds to wait for EOR from ODL:", e);
    // }
    List<Neighbors> neighbors = config.getNeighbors();
    if (neighbors != null) {
        LOG.error("configuring existing Neighbors present for replay total neighbors {}", neighbors.size());
        boolean neighborConfigReplayResult = replayNbrConfig(neighbors, br);
        if (neighborConfigReplayResult == false) {
            replaySucceded = false;
        }
    } else {
        LOG.error("no Neighbors present for replay config ");
    }
    Logging logging = config.getLogging();
    if (logging != null) {
        try {
            br.setLogging(logging.getFile(), logging.getLevel());
        } catch (TException | BgpRouterException e) {
            LOG.error("Replay:setLogging() received exception", e);
        }
    }
    GracefulRestart gracefulRestart = config.getGracefulRestart();
    if (gracefulRestart != null) {
        try {
            br.addGracefulRestart(gracefulRestart.getStalepathTime().intValue());
        } catch (TException | BgpRouterException e) {
            LOG.error("Replay:addGr() received exception", e);
        }
    }
    List<Vrfs> vrfs = config.getVrfs();
    if (vrfs == null) {
        vrfs = new ArrayList<>();
    }
    for (Vrfs vrf : vrfs) {
        for (AddressFamiliesVrf adf : vrf.getAddressFamiliesVrf()) {
            try {
                br.addVrf(BgpUtil.getLayerType(adf), vrf.getRd(), vrf.getImportRts(), vrf.getExportRts());
            } catch (TException | BgpRouterException e) {
                LOG.error("Replay:addVrf() received exception", e);
            }
        }
    }
    List<Networks> ln = config.getNetworks();
    if (ln != null) {
        for (Networks net : ln) {
            String rd = net.getRd();
            String pfxlen = net.getPrefixLen();
            String nh = net.getNexthop().getValue();
            Long label = net.getLabel();
            int lbl = label == null ? 0 : label.intValue();
            int l3vni = net.getL3vni() == null ? 0 : net.getL3vni().intValue();
            int l2vni = net.getL2vni() == null ? 0 : net.getL2vni().intValue();
            if (rd == null && lbl > 0) {
                // LU prefix is being deleted.
                rd = Integer.toString(lbl);
            }
            BgpControlPlaneType protocolType = net.getBgpControlPlaneType();
            int ethernetTag = net.getEthtag().intValue();
            String esi = net.getEsi();
            String macaddress = net.getMacaddress();
            EncapType encapType = net.getEncapType();
            String routerMac = net.getRoutermac();
            try {
                br.addPrefix(rd, pfxlen, nh, lbl, l3vni, l2vni, BgpUtil.convertToThriftProtocolType(protocolType), ethernetTag, esi, macaddress, BgpUtil.convertToThriftEncapType(encapType), routerMac);
            } catch (TException | BgpRouterException e) {
                LOG.error("Replay:addPfx() received exception", e);
            }
        }
    }
    List<Multipath> multipaths = config.getMultipath();
    if (multipaths != null) {
        for (Multipath multipath : multipaths) {
            if (multipath != null) {
                af_afi afi = af_afi.findByValue(multipath.getAfi().intValue());
                af_safi safi = af_safi.findByValue(multipath.getSafi().intValue());
                try {
                    if (multipath.isMultipathEnabled()) {
                        br.enableMultipath(afi, safi);
                    } else {
                        br.disableMultipath(afi, safi);
                    }
                } catch (TException | BgpRouterException e) {
                    LOG.info("Replay:multipaths() received exception", e);
                }
            }
        }
    }
    List<VrfMaxpath> vrfMaxpaths = config.getVrfMaxpath();
    if (vrfMaxpaths != null) {
        for (VrfMaxpath vrfMaxpath : vrfMaxpaths) {
            try {
                br.multipaths(vrfMaxpath.getRd(), vrfMaxpath.getMaxpaths());
            } catch (TException | BgpRouterException e) {
                LOG.info("Replay:vrfMaxPath() received exception", e);
            }
        }
    }
    // send End of Rib Marker to Qthriftd.
    final int numberOfEORRetries = 3;
    replayDone = false;
    RetryOnException eorRetry = new RetryOnException(numberOfEORRetries);
    do {
        try {
            br.sendEOR();
            LOG.debug("Replay sendEOR {} successful");
            replayDone = true;
            break;
        } catch (Exception e) {
            eorRetry.errorOccured();
            LOG.error("Replay:sedEOR() received exception:", e);
        }
    } while (eorRetry.shouldRetry());
    return replaySucceded && replayDone;
}

Example 25 with TApplicationException

use of org.apache.thrift.TApplicationException in project accumulo by apache.

the class ThriftScanner method getBatchFromServer.

public static boolean getBatchFromServer(ClientContext context, Range range, KeyExtent extent, String server, SortedMap<Key, Value> results, SortedSet<Column> fetchedColumns, List<IterInfo> serverSideIteratorList, Map<String, Map<String, String>> serverSideIteratorOptions, int size, Authorizations authorizations, boolean retry, long batchTimeOut, String classLoaderContext) throws AccumuloException, AccumuloSecurityException, NotServingTabletException {
    if (server == null)
        throw new AccumuloException(new IOException());
    final HostAndPort parsedServer = HostAndPort.fromString(server);
    try {
        TInfo tinfo = Tracer.traceInfo();
        TabletClientService.Client client = ThriftUtil.getTServerClient(parsedServer, context);
        try {
            // not reading whole rows (or stopping on row boundries) so there is no need to enable isolation below
            ScanState scanState = new ScanState(context, extent.getTableId(), authorizations, range, fetchedColumns, size, serverSideIteratorList, serverSideIteratorOptions, false, Constants.SCANNER_DEFAULT_READAHEAD_THRESHOLD, null, batchTimeOut, classLoaderContext);
            TabletType ttype = TabletType.type(extent);
            boolean waitForWrites = !serversWaitedForWrites.get(ttype).contains(server);
            InitialScan isr = client.startScan(tinfo, scanState.context.rpcCreds(), extent.toThrift(), scanState.range.toThrift(), Translator.translate(scanState.columns, Translators.CT), scanState.size, scanState.serverSideIteratorList, scanState.serverSideIteratorOptions, scanState.authorizations.getAuthorizationsBB(), waitForWrites, scanState.isolated, scanState.readaheadThreshold, null, scanState.batchTimeOut, classLoaderContext);
            if (waitForWrites)
                serversWaitedForWrites.get(ttype).add(server);
            Key.decompress(isr.result.results);
            for (TKeyValue kv : isr.result.results) results.put(new Key(kv.key), new Value(kv.value));
            client.closeScan(tinfo, isr.scanID);
            return isr.result.more;
        } finally {
            ThriftUtil.returnClient(client);
        }
    } catch (TApplicationException tae) {
        throw new AccumuloServerException(server, tae);
    } catch (TooManyFilesException e) {
        log.debug("Tablet ({}) has too many files {} : {}", extent, server, e.getMessage());
    } catch (ThriftSecurityException e) {
        log.warn("Security Violation in scan request to {}: {}", server, e.getMessage());
        throw new AccumuloSecurityException(e.user, e.code, e);
    } catch (TException e) {
        log.debug("Error getting transport to {}: {}", server, e.getMessage());
    }
    throw new AccumuloException("getBatchFromServer: failed");
}