Examples with TProtocol org.apache.thrift.protocol.TProtocol used on opensource projects

Example 86 with TProtocol

use of org.apache.thrift.protocol.TProtocol in project hive by apache.

the class HiveMetaStoreClient method open.

private void open() throws MetaException {
    isConnected = false;
    TTransportException tte = null;
    boolean useSSL = MetastoreConf.getBoolVar(conf, ConfVars.USE_SSL);
    boolean useSasl = MetastoreConf.getBoolVar(conf, ConfVars.USE_THRIFT_SASL);
    boolean useFramedTransport = MetastoreConf.getBoolVar(conf, ConfVars.USE_THRIFT_FRAMED_TRANSPORT);
    boolean useCompactProtocol = MetastoreConf.getBoolVar(conf, ConfVars.USE_THRIFT_COMPACT_PROTOCOL);
    int clientSocketTimeout = (int) MetastoreConf.getTimeVar(conf, ConfVars.CLIENT_SOCKET_TIMEOUT, TimeUnit.MILLISECONDS);
    for (int attempt = 0; !isConnected && attempt < retries; ++attempt) {
        for (URI store : metastoreUris) {
            LOG.info("Trying to connect to metastore with URI " + store);
            try {
                if (useSSL) {
                    try {
                        String trustStorePath = MetastoreConf.getVar(conf, ConfVars.SSL_TRUSTSTORE_PATH).trim();
                        if (trustStorePath.isEmpty()) {
                            throw new IllegalArgumentException(ConfVars.SSL_TRUSTSTORE_PATH.toString() + " Not configured for SSL connection");
                        }
                        String trustStorePassword = MetastoreConf.getPassword(conf, MetastoreConf.ConfVars.SSL_TRUSTSTORE_PASSWORD);
                        // Create an SSL socket and connect
                        transport = SecurityUtils.getSSLSocket(store.getHost(), store.getPort(), clientSocketTimeout, trustStorePath, trustStorePassword);
                        LOG.info("Opened an SSL connection to metastore, current connections: " + connCount.incrementAndGet());
                    } catch (IOException e) {
                        throw new IllegalArgumentException(e);
                    } catch (TTransportException e) {
                        tte = e;
                        throw new MetaException(e.toString());
                    }
                } else {
                    transport = new TSocket(store.getHost(), store.getPort(), clientSocketTimeout);
                }
                if (useSasl) {
                    // Wrap thrift connection with SASL for secure connection.
                    try {
                        HadoopThriftAuthBridge.Client authBridge = HadoopThriftAuthBridge.getBridge().createClient();
                        // check if we should use delegation tokens to authenticate
                        // the call below gets hold of the tokens if they are set up by hadoop
                        // this should happen on the map/reduce tasks if the client added the
                        // tokens into hadoop's credential store in the front end during job
                        // submission.
                        String tokenSig = MetastoreConf.getVar(conf, ConfVars.TOKEN_SIGNATURE);
                        // tokenSig could be null
                        tokenStrForm = SecurityUtils.getTokenStrForm(tokenSig);
                        if (tokenStrForm != null) {
                            LOG.info("HMSC::open(): Found delegation token. Creating DIGEST-based thrift connection.");
                            // authenticate using delegation tokens via the "DIGEST" mechanism
                            transport = authBridge.createClientTransport(null, store.getHost(), "DIGEST", tokenStrForm, transport, MetaStoreUtils.getMetaStoreSaslProperties(conf, useSSL));
                        } else {
                            LOG.info("HMSC::open(): Could not find delegation token. Creating KERBEROS-based thrift connection.");
                            String principalConfig = MetastoreConf.getVar(conf, ConfVars.KERBEROS_PRINCIPAL);
                            transport = authBridge.createClientTransport(principalConfig, store.getHost(), "KERBEROS", null, transport, MetaStoreUtils.getMetaStoreSaslProperties(conf, useSSL));
                        }
                    } catch (IOException ioe) {
                        LOG.error("Couldn't create client transport", ioe);
                        throw new MetaException(ioe.toString());
                    }
                } else {
                    if (useFramedTransport) {
                        transport = new TFramedTransport(transport);
                    }
                }
                final TProtocol protocol;
                if (useCompactProtocol) {
                    protocol = new TCompactProtocol(transport);
                } else {
                    protocol = new TBinaryProtocol(transport);
                }
                client = new ThriftHiveMetastore.Client(protocol);
                try {
                    if (!transport.isOpen()) {
                        transport.open();
                        LOG.info("Opened a connection to metastore, current connections: " + connCount.incrementAndGet());
                    }
                    isConnected = true;
                } catch (TTransportException e) {
                    tte = e;
                    if (LOG.isDebugEnabled()) {
                        LOG.warn("Failed to connect to the MetaStore Server...", e);
                    } else {
                        // Don't print full exception trace if DEBUG is not on.
                        LOG.warn("Failed to connect to the MetaStore Server...");
                    }
                }
                if (isConnected && !useSasl && MetastoreConf.getBoolVar(conf, ConfVars.EXECUTE_SET_UGI)) {
                    // Call set_ugi, only in unsecure mode.
                    try {
                        UserGroupInformation ugi = SecurityUtils.getUGI();
                        client.set_ugi(ugi.getUserName(), Arrays.asList(ugi.getGroupNames()));
                    } catch (LoginException e) {
                        LOG.warn("Failed to do login. set_ugi() is not successful, " + "Continuing without it.", e);
                    } catch (IOException e) {
                        LOG.warn("Failed to find ugi of client set_ugi() is not successful, " + "Continuing without it.", e);
                    } catch (TException e) {
                        LOG.warn("set_ugi() not successful, Likely cause: new client talking to old server. " + "Continuing without it.", e);
                    }
                }
            } catch (MetaException e) {
                LOG.error("Unable to connect to metastore with URI " + store + " in attempt " + attempt, e);
            }
            if (isConnected) {
                break;
            }
        }
        // Wait before launching the next round of connection retries.
        if (!isConnected && retryDelaySeconds > 0) {
            try {
                LOG.info("Waiting " + retryDelaySeconds + " seconds before next connection attempt.");
                Thread.sleep(retryDelaySeconds * 1000);
            } catch (InterruptedException ignore) {
            }
        }
    }
    if (!isConnected) {
        throw new MetaException("Could not connect to meta store using any of the URIs provided." + " Most recent failure: " + StringUtils.stringifyException(tte));
    }
    snapshotActiveConf();
    LOG.info("Connected to metastore.");
}

Example 87 with TProtocol

use of org.apache.thrift.protocol.TProtocol in project vcell by virtualcell.

the class BioformatsImageDatasetReader method readImageDatasetFromMultiFiles.

@Override
public ImageDataset readImageDatasetFromMultiFiles(File[] files, ClientTaskStatusSupport status, boolean isTimeSeries, double timeInterval) throws Exception {
    try (TTransport transport = new TSocket("localhost", port)) {
        transport.open();
        TProtocol protocol = new TBinaryProtocol(transport);
        ImageDatasetService.Client client = new ImageDatasetService.Client(protocol);
        ArrayList<String> fileList = new ArrayList<String>();
        for (File f : files) {
            fileList.add(f.getAbsolutePath());
        }
        org.vcell.imagedataset.ImageDataset t_imageDataset = client.readImageDatasetFromMultiFiles(fileList, isTimeSeries, timeInterval);
        ImageDataset imageDataset = getImageDataset(t_imageDataset);
        return imageDataset;
    }
}

Example 88 with TProtocol

use of org.apache.thrift.protocol.TProtocol in project vcell by virtualcell.

the class BioformatsImageDatasetReader method getImageSizeInfoForceZ.

@Override
public ImageSizeInfo getImageSizeInfoForceZ(String fileName, int forceZSize) throws Exception {
    try (TTransport transport = new TSocket("localhost", port)) {
        transport.open();
        TProtocol protocol = new TBinaryProtocol(transport);
        ImageDatasetService.Client client = new ImageDatasetService.Client(protocol);
        org.vcell.imagedataset.ImageSizeInfo t_imageSizeInfo = client.getImageSizeInfoForceZ(fileName, forceZSize);
        org.vcell.imagedataset.ISize t_size = t_imageSizeInfo.getISize();
        double[] timePoints = new double[t_imageSizeInfo.getTimePoints().size()];
        for (int i = 0; i < t_imageSizeInfo.getTimePointsSize(); i++) {
            timePoints[i] = t_imageSizeInfo.getTimePoints().get(i);
        }
        ImageSizeInfo imageSizeInfo = new ImageSizeInfo(t_imageSizeInfo.imagePath, new ISize(t_size.getX(), t_size.getY(), t_size.getZ()), t_imageSizeInfo.numChannels, timePoints, t_imageSizeInfo.selectedTimeIndex);
        return imageSizeInfo;
    }
}

Example 89 with TProtocol

use of org.apache.thrift.protocol.TProtocol in project parquet-format by apache.

the class TBaseStructConsumer method listOf.

/**
 * To consume a list of elements
 * @param c the type of the list content
 * @param consumer the consumer that will receive the list
 * @return a ListConsumer that can be passed to the DelegatingFieldConsumer
 */
public static <T extends TBase<T, ? extends TFieldIdEnum>> ListConsumer listOf(Class<T> c, final Consumer<List<T>> consumer) {
    class ListConsumer implements Consumer<T> {

        List<T> list;

        @Override
        public void consume(T t) {
            list.add(t);
        }
    }
    final ListConsumer co = new ListConsumer();
    return new DelegatingListElementsConsumer(struct(c, co)) {

        @Override
        public void consumeList(TProtocol protocol, EventBasedThriftReader reader, TList tList) throws TException {
            co.list = new ArrayList<T>();
            super.consumeList(protocol, reader, tList);
            consumer.consume(co.list);
        }
    };
}

Example 90 with TProtocol

use of org.apache.thrift.protocol.TProtocol in project tech by ffyyhh995511.

the class RedisDistributedLock method serverTimeMillis.

/**
 * 获取服务器时间
 * @return
 */
private long serverTimeMillis() {
    long time = 0;
    TTransport transport = null;
    try {
        // 设置传输通道，对于非阻塞服务，需要使用TFramedTransport，它将数据分块发送
        transport = new TFramedTransport(new TSocket("192.168.11.173", 7911));
        transport.open();
        // 使用高密度二进制协议
        TProtocol protocol = new TCompactProtocol(transport);
        // 创建Client
        ServerTime.Client client = new ServerTime.Client(protocol);
        time = client.getTime();
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        if (transport != null) {
            // 关闭资源
            transport.close();
        }
    }
    return time;
}