Example usage for org.apache.thrift TDeserializer deserialize

Introduction

In this page you can find the example usage for org.apache.thrift TDeserializer deserialize.

Prototype

public void deserialize(TBase base, String data, String charset) throws TException 

Source Link

Document

Deserialize the Thrift object from a Java string, using a specified character set for decoding.

Usage

From source file:org.apache.hadoop.hive.metastore.messaging.json.JSONMessageFactory.java

License:Apache License

public static Table getTableObj(ObjectNode jsonTree) throws Exception {
    TDeserializer deSerializer = new TDeserializer(new TJSONProtocol.Factory());
    Table tableObj = new Table();
    String tableJson = jsonTree.get("tableObjJson").asText();
    deSerializer.deserialize(tableObj, tableJson, "UTF-8");
    return tableObj;
}

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From source file:org.apache.hadoop.hive.metastore.messaging.json.JSONMessageFactory.java

License:Apache License

public static List<Partition> getPartitionObjList(ObjectNode jsonTree) throws Exception {
    TDeserializer deSerializer = new TDeserializer(new TJSONProtocol.Factory());
    List<Partition> partitionObjList = new ArrayList<Partition>();
    Partition partitionObj = new Partition();
    Iterator<JsonNode> jsonArrayIterator = jsonTree.get("partitionListJson").iterator();
    while (jsonArrayIterator.hasNext()) {
        deSerializer.deserialize(partitionObj, jsonArrayIterator.next().asText(), "UTF-8");
        partitionObjList.add(partitionObj);
    }// w ww. jav a 2s  .co  m
    return partitionObjList;
}

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From source file:org.apache.hadoop.hive.metastore.messaging.json.JSONMessageFactory.java

License:Apache License

public static Function getFunctionObj(ObjectNode jsonTree) throws Exception {
    TDeserializer deSerializer = new TDeserializer(new TJSONProtocol.Factory());
    Function funcObj = new Function();
    String tableJson = jsonTree.get("functionObjJson").asText();
    deSerializer.deserialize(funcObj, tableJson, "UTF-8");
    return funcObj;
}

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From source file:org.apache.hadoop.hive.metastore.messaging.json.JSONMessageFactory.java

License:Apache License

public static Index getIndexObj(ObjectNode jsonTree, String indexObjKey) throws Exception {
    TDeserializer deSerializer = new TDeserializer(new TJSONProtocol.Factory());
    Index indexObj = new Index();
    String tableJson = jsonTree.get(indexObjKey).asText();
    deSerializer.deserialize(indexObj, tableJson, "UTF-8");
    return indexObj;
}

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From source file:org.apache.hadoop.hive.metastore.messaging.MessageBuilder.java

License:Apache License

public static TBase getTObj(String tSerialized, Class<? extends TBase> objClass) throws Exception {
    TDeserializer thriftDeSerializer = new TDeserializer(new TJSONProtocol.Factory());
    TBase obj = objClass.newInstance();// w  w w.j a  v a 2s.c om
    thriftDeSerializer.deserialize(obj, tSerialized, "UTF-8");
    return obj;
}

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From source file:org.apache.hadoop.hive.ql.parse.EximUtil.java

License:Apache License

public static ReadMetaData readMetaData(FileSystem fs, Path metadataPath)
        throws IOException, SemanticException {
    FSDataInputStream mdstream = null;//from w w w.  j  a  va  2s  .  c  om
    try {
        mdstream = fs.open(metadataPath);
        byte[] buffer = new byte[1024];
        ByteArrayOutputStream sb = new ByteArrayOutputStream();
        int read = mdstream.read(buffer);
        while (read != -1) {
            sb.write(buffer, 0, read);
            read = mdstream.read(buffer);
        }
        String md = new String(sb.toByteArray(), "UTF-8");
        JSONObject jsonContainer = new JSONObject(md);
        String version = jsonContainer.getString("version");
        String fcversion = getJSONStringEntry(jsonContainer, "fcversion");
        checkCompatibility(version, fcversion);
        String tableDesc = getJSONStringEntry(jsonContainer, "table");
        Table table = null;
        List<Partition> partitionsList = null;
        if (tableDesc != null) {
            table = new Table();
            TDeserializer deserializer = new TDeserializer(new TJSONProtocol.Factory());
            deserializer.deserialize(table, tableDesc, "UTF-8");
            // TODO : jackson-streaming-iterable-redo this
            JSONArray jsonPartitions = new JSONArray(jsonContainer.getString("partitions"));
            partitionsList = new ArrayList<Partition>(jsonPartitions.length());
            for (int i = 0; i < jsonPartitions.length(); ++i) {
                String partDesc = jsonPartitions.getString(i);
                Partition partition = new Partition();
                deserializer.deserialize(partition, partDesc, "UTF-8");
                partitionsList.add(partition);
            }
        }

        return new ReadMetaData(table, partitionsList, readReplicationSpec(jsonContainer));
    } catch (JSONException e) {
        throw new SemanticException(ErrorMsg.GENERIC_ERROR.getMsg("Error in serializing metadata"), e);
    } catch (TException e) {
        throw new SemanticException(ErrorMsg.GENERIC_ERROR.getMsg("Error in serializing metadata"), e);
    } finally {
        if (mdstream != null) {
            mdstream.close();
        }
    }
}

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From source file:org.apache.hive.hcatalog.api.MetadataJSONSerializer.java

License:Apache License

@Override
public HCatPartitionSpec deserializePartitionSpec(List<String> hcatPartitionSpecStrings) throws HCatException {
    try {/*from w  ww  .jav a 2  s.c  om*/
        List<PartitionSpec> partitionSpecList = new ArrayList<PartitionSpec>();
        TDeserializer deserializer = new TDeserializer(new TJSONProtocol.Factory());
        for (String stringRep : hcatPartitionSpecStrings) {
            PartitionSpec partSpec = new PartitionSpec();
            deserializer.deserialize(partSpec, stringRep, "UTF-8");
            partitionSpecList.add(partSpec);
        }
        return new HCatPartitionSpec(null, PartitionSpecProxy.Factory.get(partitionSpecList));
    } catch (TException deserializationException) {
        throw new HCatException("Failed to deserialize!", deserializationException);
    }
}

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From source file:tech.sirwellington.alchemy.thrift.ThriftObjects.java

License:Apache License

/**
 * Inflates the prototype object from the supplied JSON.
 *
 * @param <T>       The type of the Thrift Object
 * @param prototype The prototype Object to deserialize into
 * @param json      The Simple JSON generated from {@link #toJson(org.apache.thrift.TBase) }
 *
 * @return The Deserialized Prototype Object.
 *
 * @throws TException/*from   w  w w  .  ja  v a2  s  .c  o  m*/
 */
public static <T extends TBase> T fromJson(@NonNull T prototype, @NonEmpty String json) throws TException {
    checkThat(prototype).usingMessage("missing prototype").is(notNull());

    if (isNullOrEmpty(json)) {
        LOG.warn("JSON String is empty");
        return prototype;
    }

    TProtocolFactory protocol = new TJSONProtocol.Factory();
    TDeserializer deserializer = new TDeserializer(protocol);
    deserializer.deserialize(prototype, json, UTF_8.name());
    LOG.debug("Prototype TObject inflated to {} from json {}", prototype, json);
    return prototype;
}

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