Examples of com.dyuproject.protostuff.CompareInputsTest$Deserializer

org.apache.hadoop.hive.serde2.Deserializer
Benchmark to compare the deserialization speed of 2 types. CodedInput and ByteArrayInput. @author David Yu @created Jun 22, 2010


  private ArrayList<ExprNodeDesc> genConvertCol(String dest, QB qb, Table tab, TableDesc table_desc, Operator input,
                                                List<Integer> posns, boolean convert) throws SemanticException {
    StructObjectInspector oi = null;
    try {
      Deserializer deserializer = table_desc.getDeserializerClass()
          .newInstance();
      deserializer.initialize(conf, table_desc.getProperties());
      oi = (StructObjectInspector) deserializer.getObjectInspector();
    } catch (Exception e) {
      throw new SemanticException(e);
    }


    List<? extends StructField> tableFields = oi.getAllStructFieldRefs();

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      final TableDesc tblDesc) throws HiveException {
    tableDesc = tblDesc;
    properties = part.getSchemaFromTableSchema(tblDesc.getProperties()); // each partition maintains a large properties
    partSpec = part.getSpec();
    // deserializerClass = part.getDeserializer(properties).getClass();
    Deserializer deserializer;
    try {
      deserializer = SerDeUtils.lookupDeserializer(
          properties.getProperty(org.apache.hadoop.hive.serde.serdeConstants.SERIALIZATION_LIB));
    } catch (SerDeException e) {
      throw new HiveException(e);
    }
    deserializerClass = deserializer.getClass();
    inputFileFormatClass = part.getInputFormatClass();
    outputFileFormatClass = part.getOutputFormatClass();
    serdeClassName = properties.getProperty(
        org.apache.hadoop.hive.serde.serdeConstants.SERIALIZATION_LIB);
  }

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  /**
   * Return a deserializer object corresponding to the tableDesc.
   */
  public Deserializer getDeserializer() throws Exception {
    Deserializer de = deserializerClass.newInstance();
    de.initialize(null, properties);
    return de;
  }

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            tbl.getSd().getSerdeInfo().getSerializationLib());
        if (!getColsFromSerDe) {
          ret = tbl.getSd().getCols();
        } else {
          try {
            Deserializer s = MetaStoreUtils.getDeserializer(hiveConf, tbl);
            ret = MetaStoreUtils.getFieldsFromDeserializer(tableName, s);
          } catch (SerDeException e) {
            StringUtils.stringifyException(e);
            throw new MetaException(e.getMessage());
          }

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    String tableName = String.valueOf(tblProps.getProperty("name"));
    String partName = String.valueOf(partSpec);
    // HiveConf.setVar(hconf, HiveConf.ConfVars.HIVETABLENAME, tableName);
    // HiveConf.setVar(hconf, HiveConf.ConfVars.HIVEPARTITIONNAME, partName);
    Deserializer deserializer = (Deserializer) sdclass.newInstance();
    deserializer.initialize(hconf, tblProps);
    StructObjectInspector rawRowObjectInspector = (StructObjectInspector) deserializer
        .getObjectInspector();


    MapOpCtx opCtx = null;
    // Next check if this table has partitions and if so
    // get the list of partition names as well as allocate

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  /**
   * Check if the given serde is valid.
   */
  private void validateSerDe(String serdeName) throws HiveException {
    try {
      Deserializer d = SerDeUtils.lookupDeserializer(serdeName);
      if (d != null) {
        LOG.debug("Found class for " + serdeName);
      }
    } catch (SerDeException e) {
      throw new HiveException("Cannot validate serde: " + serdeName, e);

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  static public Deserializer getDeserializer(Configuration conf,
      Properties schema) throws MetaException {
    String lib = schema
        .getProperty(org.apache.hadoop.hive.serde.Constants.SERIALIZATION_LIB);
    try {
      Deserializer deserializer = SerDeUtils.lookupDeserializer(lib);
      (deserializer).initialize(conf, schema);
      return deserializer;
    } catch (Exception e) {
      LOG.error("error in initSerDe: " + e.getClass().getName() + " "
          + e.getMessage());

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    String lib = table.getSd().getSerdeInfo().getSerializationLib();
    if (lib == null) {
      return null;
    }
    try {
      Deserializer deserializer = SerDeUtils.lookupDeserializer(lib);
      deserializer.initialize(conf, MetaStoreUtils.getSchema(table));
      return deserializer;
    } catch (RuntimeException e) {
      throw e;
    } catch (Exception e) {
      LOG.error("error in initSerDe: " + e.getClass().getName() + " "

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  static public Deserializer getDeserializer(Configuration conf,
      org.apache.hadoop.hive.metastore.api.Partition part,
      org.apache.hadoop.hive.metastore.api.Table table) throws MetaException {
    String lib = part.getSd().getSerdeInfo().getSerializationLib();
    try {
      Deserializer deserializer = SerDeUtils.lookupDeserializer(lib);
      deserializer.initialize(conf, MetaStoreUtils.getSchema(part, table));
      return deserializer;
    } catch (RuntimeException e) {
      throw e;
    } catch (Exception e) {
      LOG.error("error in initSerDe: " + e.getClass().getName() + " "

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        tbl.getSd().getSerdeInfo().getSerializationLib());
      if (!getColsFromSerDe) {
        return tbl.getSd().getCols();
      } else {
        try {
          Deserializer s = MetaStoreUtils.getDeserializer(hiveConf, tbl);
          return MetaStoreUtils.getFieldsFromDeserializer(tableName, s);
        } catch (SerDeException e) {
          StringUtils.stringifyException(e);
          throw new MetaException(e.getMessage());
        }

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