org.apache.hadoop.hive.serde2.typeinfo.PrimitiveTypeInfo Java Examples

@Before
public void setUp() {
  tsFileSerDer = new TsFileSerDe();
  columnNames = Arrays.asList("time_stamp", "sensor_1");
  columnTypes = new ArrayList<>();
  PrimitiveTypeInfo typeInfo1 = new PrimitiveTypeInfo();
  typeInfo1.setTypeName("bigint");
  columnTypes.add(typeInfo1);
  PrimitiveTypeInfo typeInfo2 = new PrimitiveTypeInfo();
  typeInfo2.setTypeName("bigint");
  columnTypes.add(typeInfo2);
  tbl = new Properties();
  String delimiter = ",";
  tbl.setProperty(serdeConstants.COLUMN_NAME_DELIMITER, delimiter);
  tbl.setProperty(serdeConstants.LIST_COLUMNS, String.join(delimiter, columnNames));
  tbl.setProperty(serdeConstants.LIST_COLUMN_TYPES, "bigint,bigint");
  tbl.setProperty(TsFileSerDe.DEVICE_ID, "device_1");
  job = new JobConf();
  try {
    tsFileSerDer.initialize(job, tbl);
  } catch (SerDeException e) {
    e.printStackTrace();

  }
}
 

private ObjectInspector createObjectInspectorWorker(TypeInfo ti) throws SerDeException {
  switch (ti.getCategory()) {
  case PRIMITIVE:
    PrimitiveTypeInfo pti = (PrimitiveTypeInfo) ti;
    return PrimitiveObjectInspectorFactory.getPrimitiveJavaObjectInspector(pti);
  case STRUCT:
    StructTypeInfo sti = (StructTypeInfo) ti;
    List<ObjectInspector> ois = new ArrayList<ObjectInspector>(sti.getAllStructFieldTypeInfos().size());
    for (TypeInfo typeInfo : sti.getAllStructFieldTypeInfos()) {
      ois.add(createObjectInspectorWorker(typeInfo));
    }
    return ObjectInspectorFactory.getStandardStructObjectInspector(sti.getAllStructFieldNames(), ois);
  case LIST:
    ListTypeInfo lti = (ListTypeInfo) ti;
    TypeInfo listElementTypeInfo = lti.getListElementTypeInfo();
    return ObjectInspectorFactory.getStandardListObjectInspector(createObjectInspectorWorker(listElementTypeInfo));
  default:
    throw new SerDeException("No Hive categories matched for [" + ti + "]");
  }
}
 

private static boolean isWritableType(TypeInfo typeInfo)
{
    switch (typeInfo.getCategory()) {
        case PRIMITIVE:
            PrimitiveCategory primitiveCategory = ((PrimitiveTypeInfo) typeInfo).getPrimitiveCategory();
            return isWritablePrimitiveType(primitiveCategory);
        case MAP:
            MapTypeInfo mapTypeInfo = (MapTypeInfo) typeInfo;
            return isWritableType(mapTypeInfo.getMapKeyTypeInfo()) && isWritableType(mapTypeInfo.getMapValueTypeInfo());
        case LIST:
            ListTypeInfo listTypeInfo = (ListTypeInfo) typeInfo;
            return isWritableType(listTypeInfo.getListElementTypeInfo());
        case STRUCT:
            StructTypeInfo structTypeInfo = (StructTypeInfo) typeInfo;
            return structTypeInfo.getAllStructFieldTypeInfos().stream().allMatch(HiveWriteUtils::isWritableType);
    }
    return false;
}
 

private Object worker(String columnName, TypeInfo columnType){
	
	switch(columnType.getCategory()) {
		
		case STRUCT:
			return deserializeStruct(columnName, (StructTypeInfo) columnType);
		case UNION:
			return deserializeUnion(columnName,(UnionTypeInfo) columnType);
		case LIST:
		return deserializeList(columnName, (ListTypeInfo) columnType);
		case MAP:
		throw new RuntimeException("map type is not possible for cobol layout" + columnType.getCategory());
		case PRIMITIVE:
		return deserializePrimitive(columnName, (PrimitiveTypeInfo) columnType);
		default:
		throw new RuntimeException("Unknown TypeInfo: " + columnType.getCategory());
	}
}
 

private static boolean containsTimestampBucketedV2(TypeInfo type)
{
    switch (type.getCategory()) {
        case PRIMITIVE:
            return ((PrimitiveTypeInfo) type).getPrimitiveCategory() == TIMESTAMP;
        case LIST:
            return containsTimestampBucketedV2(((ListTypeInfo) type).getListElementTypeInfo());
        case MAP:
            MapTypeInfo mapTypeInfo = (MapTypeInfo) type;
            // Note: we do not check map value type because HiveBucketingV2#hashOfMap hashes map values with v1
            return containsTimestampBucketedV2(mapTypeInfo.getMapKeyTypeInfo());
        default:
            // TODO: support more types, e.g. ROW
            throw new UnsupportedOperationException("Computation of Hive bucket hashCode is not supported for Hive category: " + type.getCategory());
    }
}
 

private static void fieldEscaper(List<ExprNodeDesc> exprNodes, ExprNodeDesc parent, Set<String> columnNamesInNotInExpression) {
  if (exprNodes == null || exprNodes.isEmpty()) {
    return;
  } else {
    for (ExprNodeDesc nodeDesc : exprNodes) {
      String nodeType = nodeDesc.getTypeString().toLowerCase();
      if (QUOTED_TYPES.contains(nodeType)) {
        PrimitiveTypeInfo tInfo = new PrimitiveTypeInfo();
        tInfo.setTypeName(HIVE_STRING_TYPE_NAME);
        nodeDesc.setTypeInfo(tInfo);
      }
      addColumnNamesOfNotInExpressionToSet(nodeDesc, parent, columnNamesInNotInExpression);
      fieldEscaper(nodeDesc.getChildren(), nodeDesc, columnNamesInNotInExpression);
    }
  }
}
 

private ObjectInspector createObjectInspectorWorker(TypeInfo ti) throws TsFileSerDeException {
  if(!supportedCategories(ti)) {
    throw new TsFileSerDeException("Don't yet support this type: " + ti);
  }
  ObjectInspector result;
  switch(ti.getCategory()) {
    case PRIMITIVE:
      PrimitiveTypeInfo pti = (PrimitiveTypeInfo) ti;
      result = PrimitiveObjectInspectorFactory.getPrimitiveJavaObjectInspector(pti);
      break;
    // these types is not supported in TsFile
    case LIST:
    case MAP:
    case STRUCT:
    case UNION:
      throw new TsFileSerDeException("The type is not supported in TsFile: " + ti);
    default:
      throw new TsFileSerDeException("No Hive categories matched: " + ti);
  }
  return result;
}
 

public static boolean isNumberTypeInfo(@Nonnull TypeInfo typeInfo) {
    if (typeInfo.getCategory() != ObjectInspector.Category.PRIMITIVE) {
        return false;
    }
    switch (((PrimitiveTypeInfo) typeInfo).getPrimitiveCategory()) {
        case BYTE:
        case SHORT:
        case INT:
        case LONG:
        case FLOAT:
        case DOUBLE:
        case DECIMAL:
            return true;
        default:
            return false;
    }
}
 

@Test
public void testFiveArgumenString() throws UDFArgumentException, IOException {
    GenericUDF udf = new KuromojiUDF();
    ObjectInspector[] argOIs = new ObjectInspector[5];
    // line
    argOIs[0] = PrimitiveObjectInspectorFactory.javaStringObjectInspector;
    // mode
    PrimitiveTypeInfo stringType = new PrimitiveTypeInfo();
    stringType.setTypeName("string");
    argOIs[1] = PrimitiveObjectInspectorFactory.getPrimitiveWritableConstantObjectInspector(
        stringType, null);
    // stopWords
    argOIs[2] = ObjectInspectorFactory.getStandardConstantListObjectInspector(
        PrimitiveObjectInspectorFactory.javaStringObjectInspector, null);
    // stopTags
    argOIs[3] = ObjectInspectorFactory.getStandardConstantListObjectInspector(
        PrimitiveObjectInspectorFactory.javaStringObjectInspector, null);
    // userDictUrl
    argOIs[4] = PrimitiveObjectInspectorFactory.getPrimitiveWritableConstantObjectInspector(
        stringType, null);
    udf.initialize(argOIs);
    udf.close();
}
 

@Test
public void testFiveArgumentArray() throws UDFArgumentException, IOException {
    GenericUDF udf = new KuromojiUDF();
    ObjectInspector[] argOIs = new ObjectInspector[5];
    // line
    argOIs[0] = PrimitiveObjectInspectorFactory.javaStringObjectInspector;
    // mode
    PrimitiveTypeInfo stringType = new PrimitiveTypeInfo();
    stringType.setTypeName("string");
    argOIs[1] = PrimitiveObjectInspectorFactory.getPrimitiveWritableConstantObjectInspector(
        stringType, null);
    // stopWords
    argOIs[2] = ObjectInspectorFactory.getStandardConstantListObjectInspector(
        PrimitiveObjectInspectorFactory.javaStringObjectInspector, null);
    // stopTags
    argOIs[3] = ObjectInspectorFactory.getStandardConstantListObjectInspector(
        PrimitiveObjectInspectorFactory.javaStringObjectInspector, null);
    // userDictUrl
    argOIs[4] = ObjectInspectorFactory.getStandardConstantListObjectInspector(
        PrimitiveObjectInspectorFactory.javaStringObjectInspector, null);
    udf.initialize(argOIs);
    udf.close();
}
 

public MDSMapObjectInspector( final MapTypeInfo typeInfo ){
  TypeInfo keyTypeInfo = typeInfo.getMapKeyTypeInfo();
  if( keyTypeInfo.getCategory() == ObjectInspector.Category.PRIMITIVE && ( (PrimitiveTypeInfo)keyTypeInfo ).getPrimitiveCategory() == PrimitiveCategory.STRING ){
    keyObjectInspector = PrimitiveObjectInspectorFactory.javaStringObjectInspector;
  }
  else{
    throw new RuntimeException( "Map key type is string only." );
  }

  valueObjectInspector = MDSObjectInspectorFactory.craeteObjectInspectorFromTypeInfo( typeInfo.getMapValueTypeInfo() ); 

  if( valueObjectInspector.getCategory() == ObjectInspector.Category.PRIMITIVE ){
    getField = new PrimitiveGetField( (PrimitiveObjectInspector)valueObjectInspector );
  }
  else if( valueObjectInspector.getCategory() == ObjectInspector.Category.UNION ){
    getField = new UnionGetField( (UnionTypeInfo)( typeInfo.getMapValueTypeInfo() ) );
  }
  else{
    getField = new NestedGetField();
  }
}
 

@Test
public void testFourArgument() throws UDFArgumentException, IOException {
    GenericUDF udf = new KuromojiUDF();
    ObjectInspector[] argOIs = new ObjectInspector[4];
    // line
    argOIs[0] = PrimitiveObjectInspectorFactory.javaStringObjectInspector;
    // mode
    PrimitiveTypeInfo stringType = new PrimitiveTypeInfo();
    stringType.setTypeName("string");
    argOIs[1] = PrimitiveObjectInspectorFactory.getPrimitiveWritableConstantObjectInspector(
        stringType, null);
    // stopWords
    argOIs[2] = ObjectInspectorFactory.getStandardConstantListObjectInspector(
        PrimitiveObjectInspectorFactory.javaStringObjectInspector, null);
    // stopTags
    argOIs[3] = ObjectInspectorFactory.getStandardConstantListObjectInspector(
        PrimitiveObjectInspectorFactory.javaStringObjectInspector, null);
    udf.initialize(argOIs);
    udf.close();
}
 

@Test
public void testThreeArgument() throws UDFArgumentException, IOException {
    GenericUDF udf = new KuromojiUDF();
    ObjectInspector[] argOIs = new ObjectInspector[3];
    // line
    argOIs[0] = PrimitiveObjectInspectorFactory.javaStringObjectInspector;
    // mode
    PrimitiveTypeInfo stringType = new PrimitiveTypeInfo();
    stringType.setTypeName("string");
    argOIs[1] = PrimitiveObjectInspectorFactory.getPrimitiveWritableConstantObjectInspector(
        stringType, null);
    // stopWords
    argOIs[2] = ObjectInspectorFactory.getStandardConstantListObjectInspector(
        PrimitiveObjectInspectorFactory.javaStringObjectInspector, null);
    udf.initialize(argOIs);
    udf.close();
}
 

@Test(expected = UDFArgumentException.class)
public void testInvalidMode() throws IOException, HiveException {
    GenericUDF udf = new KuromojiUDF();
    ObjectInspector[] argOIs = new ObjectInspector[2];
    // line
    argOIs[0] = PrimitiveObjectInspectorFactory.javaStringObjectInspector;
    // mode
    PrimitiveTypeInfo stringType = new PrimitiveTypeInfo();
    stringType.setTypeName("string");
    argOIs[1] = PrimitiveObjectInspectorFactory.getPrimitiveWritableConstantObjectInspector(
        stringType, new Text("unsupported mode"));
    udf.initialize(argOIs);

    DeferredObject[] args = new DeferredObject[1];
    args[0] = new DeferredObject() {
        public Text get() throws HiveException {
            return new Text("クロモジのJapaneseAnalyzerを使ってみる。テスト。");
        }

        @Override
        public void prepare(int arg) throws HiveException {}
    };
    udf.evaluate(args);

    udf.close();
}
 

private Object deserializeDate(Object value, PrimitiveTypeInfo type)
        throws SerDeException {
    long ts;
    // Dates can be either ISO8601 Strings or numeric timestamps.  Any other data type or format cannot be
    // deserialized.
    if (value instanceof String) {
        try {
            ts = JsonHelper.parseTimestamp((String) value).getTime();
        } catch (Exception e) {
            throw new SerDeException("Invalid time string: " + value);
        }
    } else if (value instanceof Number) {
        ts = ((Number) value).longValue();
    } else if (value instanceof java.util.Date) {
        ts = ((java.util.Date) value).getTime();
    } else {
        throw new SerDeException("Invalid time value: " + value);
    }

    if (type.getPrimitiveCategory() == PrimitiveObjectInspector.PrimitiveCategory.DATE) {
        return new Date(ts);
    } else {
        return new Timestamp(ts);
    }
}
 

private Object deserializeNumber(Object value, PrimitiveTypeInfo type)
        throws SerDeException {
    // Note that only numbers and booleans are supported.  All other types cannot be deserialized.  In particular
    // String representations of numbers are not parsed.
    Number number;
    if (value instanceof Number) {
        number = (Number) value;
    } else if (value instanceof Boolean) {
        number = ((Boolean) value) ? (byte) 1 : 0;
    } else {
        throw new SerDeException("Value is not a " + type + ": " + value);
    }

    switch (type.getPrimitiveCategory()) {
        case BYTE:   return number.byteValue();
        case SHORT:  return number.shortValue();
        case INT:    return number.intValue();
        case LONG:   return number.longValue();
        case FLOAT:  return number.floatValue();
        case DOUBLE: return number.doubleValue();
    }

    throw new SerDeException("Primitive number did not match any expected categories"); // Unreachable
}
 

/**
 * Deserializes a primitive to its corresponding Java type, doing a best-effort conversion when necessary.
 */
private Object deserializePrimitive(PrimitiveTypeInfo type, Object value)
        throws SerDeException {
    switch (type.getPrimitiveCategory()) {
        case VOID:
            return null;
        case STRING:
            return deserializeString(value);
        case BOOLEAN:
            return deserializeBoolean(value);
        case BYTE:
        case SHORT:
        case INT:
        case LONG:
        case FLOAT:
        case DOUBLE:
            return deserializeNumber(value, type);
        case DATE:
        case TIMESTAMP:
            return deserializeDate(value, type);
        default:
            throw new SerDeException("Unsupported type: " + type.getPrimitiveCategory());
    }
}
 

/**
 * Determines if the given primitive is supported by this deserializer.  At this time the only exclusions are
 * BINARY, DECIMAL, VARCHAR, CHAR, and UNKNOWN.
 */
private boolean isSupportedPrimitive(PrimitiveTypeInfo type) {
    switch (type.getPrimitiveCategory()) {
        case VOID:
        case STRING:
        case BOOLEAN:
        case BYTE:
        case SHORT:
        case INT:
        case LONG:
        case FLOAT:
        case DOUBLE:
        case DATE:
        case TIMESTAMP:
            return true;
        default:
            return false;
    }
}
 

/**
 * Convert Hive data type to a Flink data type.
 *
 * @param hiveType a Hive data type
 * @return the corresponding Flink data type
 */
public static DataType toFlinkType(TypeInfo hiveType) {
	checkNotNull(hiveType, "hiveType cannot be null");

	switch (hiveType.getCategory()) {
		case PRIMITIVE:
			return toFlinkPrimitiveType((PrimitiveTypeInfo) hiveType);
		case LIST:
			ListTypeInfo listTypeInfo = (ListTypeInfo) hiveType;
			return DataTypes.ARRAY(toFlinkType(listTypeInfo.getListElementTypeInfo()));
		case MAP:
			MapTypeInfo mapTypeInfo = (MapTypeInfo) hiveType;
			return DataTypes.MAP(toFlinkType(mapTypeInfo.getMapKeyTypeInfo()), toFlinkType(mapTypeInfo.getMapValueTypeInfo()));
		case STRUCT:
			StructTypeInfo structTypeInfo = (StructTypeInfo) hiveType;

			List<String> names = structTypeInfo.getAllStructFieldNames();
			List<TypeInfo> typeInfos = structTypeInfo.getAllStructFieldTypeInfos();

			DataTypes.Field[] fields = new DataTypes.Field[names.size()];

			for (int i = 0; i < fields.length; i++) {
				fields[i] = DataTypes.FIELD(names.get(i), toFlinkType(typeInfos.get(i)));
			}

			return DataTypes.ROW(fields);
		default:
			throw new UnsupportedOperationException(
				String.format("Flink doesn't support Hive data type %s yet.", hiveType));
	}
}
 

@Override
public FunnelEvaluator getEvaluator(GenericUDAFParameterInfo info) throws SemanticException {
    // Get the parameters
    TypeInfo [] parameters = info.getParameters();

    // Check number of arguments
    if (parameters.length < 3) {
        throw new UDFArgumentLengthException("Please specify the action column, the timestamp column, and at least one funnel.");
    }

    // Check the action_column type and enforce that all funnel steps are the same type
    if (parameters[0].getCategory() != ObjectInspector.Category.PRIMITIVE) {
        throw new UDFArgumentTypeException(0, "Only primitive type arguments are accepted but " + parameters[0].getTypeName() + " was passed.");
    }
    PrimitiveCategory actionColumnCategory = ((PrimitiveTypeInfo) parameters[0]).getPrimitiveCategory();

    // Check the timestamp_column type
    if (parameters[1].getCategory() != ObjectInspector.Category.PRIMITIVE) {
        throw new UDFArgumentTypeException(1, "Only primitive type arguments are accepted but " + parameters[0].getTypeName() + " was passed.");
    }

    // Check that all funnel steps are the same type as the action_column
    for (int i = 2; i < parameters.length; i++) {
        switch (parameters[i].getCategory()) {
            case LIST:
                // Check that the list is of primitives of the same type as the action column
                TypeInfo typeInfo = ((ListTypeInfo) parameters[i]).getListElementTypeInfo();
                if (typeInfo.getCategory() != ObjectInspector.Category.PRIMITIVE || ((PrimitiveTypeInfo) typeInfo).getPrimitiveCategory() != actionColumnCategory) {
                    throw new UDFArgumentTypeException(i, "Funnel list parameter " + Integer.toString(i) + " of type " + parameters[i].getTypeName() + " does not match expected type " + parameters[0].getTypeName() + ".");
                }
                break;
            default:
                throw new UDFArgumentTypeException(i, "Funnel list parameter " + Integer.toString(i) + " of type " + parameters[i].getTypeName() + " should be a list.");
        }
    }

    return new FunnelEvaluator();
}
 

@Override
public MergeEvaluator getEvaluator(GenericUDAFParameterInfo info) throws SemanticException {
    // Get the parameters
    TypeInfo [] parameters = info.getParameters();

    // Check number of arguments
    if (parameters.length != 1) {
        throw new UDFArgumentLengthException("Please specify the funnel column.");
    }

    // Check if the parameter is not a list
    if (parameters[0].getCategory() != ObjectInspector.Category.LIST) {
        throw new UDFArgumentTypeException(0, "Only list type arguments are accepted but " + parameters[0].getTypeName() + " was passed as the first parameter.");
    }

    // Check that the list is an array of primitives
    if (((ListTypeInfo) parameters[0]).getListElementTypeInfo().getCategory() != ObjectInspector.Category.PRIMITIVE) {
        throw new UDFArgumentTypeException(0, "A long array argument should be passed, but " + parameters[0].getTypeName() + " was passed instead.");
    }

    // Check that the list is of type long
    // May want to add support for int/double/float later
    switch (((PrimitiveTypeInfo) ((ListTypeInfo) parameters[0]).getListElementTypeInfo()).getPrimitiveCategory()) {
        case LONG:
            break;
        default:
            throw new UDFArgumentTypeException(0, "A long array argument should be passed, but " + parameters[0].getTypeName() + " was passed instead.");
    }

    return new MergeEvaluator();
}
 

public static boolean isIntegerTypeInfo(@Nonnull TypeInfo typeInfo) {
    if (typeInfo.getCategory() != ObjectInspector.Category.PRIMITIVE) {
        return false;
    }
    switch (((PrimitiveTypeInfo) typeInfo).getPrimitiveCategory()) {
        case BYTE:
        case SHORT:
        case INT:
        case LONG:
            return true;
        default:
            return false;
    }
}
 

@Override
	public Object deserialize(byte[] rowBytes) {
		byte[] temp = super.transcodeField(super.getBytes(rowBytes));
		String s1 = new String(temp);
//		System.out.println(name+"\t - "+s1+"\t:"+offset+"\t@"+length);
		switch (((PrimitiveTypeInfo) this.typeInfo).getPrimitiveCategory()) {
		case STRING:
			return s1;
		case VARCHAR:
			return new HiveVarchar(s1, this.length);
			//return s1;
		}
		return null;
	}
 

public void testExpectedMode() throws UDFArgumentException, IOException {
    GenericUDF udf = new KuromojiUDF();
    ObjectInspector[] argOIs = new ObjectInspector[2];
    // line
    argOIs[0] = PrimitiveObjectInspectorFactory.javaStringObjectInspector;
    // mode
    PrimitiveTypeInfo stringType = new PrimitiveTypeInfo();
    stringType.setTypeName("string");
    argOIs[1] = PrimitiveObjectInspectorFactory.getPrimitiveWritableConstantObjectInspector(
        stringType, new Text("normal"));
    udf.initialize(argOIs);
    udf.close();
}
 

@Test
public void testTwoArgument() throws UDFArgumentException, IOException {
    GenericUDF udf = new KuromojiUDF();
    ObjectInspector[] argOIs = new ObjectInspector[2];
    // line
    argOIs[0] = PrimitiveObjectInspectorFactory.javaStringObjectInspector;
    // mode
    PrimitiveTypeInfo stringType = new PrimitiveTypeInfo();
    stringType.setTypeName("string");
    argOIs[1] = PrimitiveObjectInspectorFactory.getPrimitiveWritableConstantObjectInspector(
        stringType, null);
    udf.initialize(argOIs);
    udf.close();
}
 

private void assertConversionException(Object value, PrimitiveTypeInfo typeInfo) {
  try {
    System.out.println(Converters.convert(value, typeInfo));
  } catch (ConversionException e) {
    return;
  }
  fail("Expected " + ConversionException.class.getSimpleName() + " for value " + value + " ("
      + value.getClass().getSimpleName() + ") to " + typeInfo.getTypeName());
}
 

/**
 * Returns the standard java object inspector
 * 
 * @param typeInfo
 *            the type info
 * @param xmlProcessor
 *            the XML processor
 * @return the standard java object inspector
 */
public static ObjectInspector getStandardJavaObjectInspectorFromTypeInfo(TypeInfo typeInfo, XmlProcessor xmlProcessor) {
    switch (typeInfo.getCategory()) {
        case PRIMITIVE: {
            return PrimitiveObjectInspectorFactory.getPrimitiveJavaObjectInspector(((PrimitiveTypeInfo) typeInfo).getPrimitiveCategory());
        }
        case LIST: {
            ObjectInspector listElementObjectInspector = getStandardJavaObjectInspectorFromTypeInfo(((ListTypeInfo) typeInfo).getListElementTypeInfo(),
                xmlProcessor);
            return new XmlListObjectInspector(listElementObjectInspector, xmlProcessor);
        }
        case MAP: {
            MapTypeInfo mapTypeInfo = (MapTypeInfo) typeInfo;
            ObjectInspector mapKeyObjectInspector = getStandardJavaObjectInspectorFromTypeInfo(mapTypeInfo.getMapKeyTypeInfo(),
                xmlProcessor);
            ObjectInspector mapValueObjectInspector = getStandardJavaObjectInspectorFromTypeInfo(mapTypeInfo.getMapValueTypeInfo(),
                xmlProcessor);
            return new XmlMapObjectInspector(mapKeyObjectInspector, mapValueObjectInspector, xmlProcessor);
        }
        case STRUCT: {
            StructTypeInfo structTypeInfo = (StructTypeInfo) typeInfo;
            List<String> structFieldNames = structTypeInfo.getAllStructFieldNames();
            List<TypeInfo> fieldTypeInfos = structTypeInfo.getAllStructFieldTypeInfos();
            List<ObjectInspector> structFieldObjectInspectors = new ArrayList<ObjectInspector>(fieldTypeInfos.size());
            for (int fieldIndex = 0; fieldIndex < fieldTypeInfos.size(); ++fieldIndex) {
                structFieldObjectInspectors.add(getStandardJavaObjectInspectorFromTypeInfo(fieldTypeInfos.get(fieldIndex), xmlProcessor));
            }
            return getStandardStructObjectInspector(structFieldNames, structFieldObjectInspectors, xmlProcessor);
        }
        default: {
            throw new IllegalStateException();
        }
    }
}
 

/**
 * Attempts to convert the input value into the target type. If the input value is {@code null} then {@code null} is
 * returned. If the input value is a String then an attempt is made to convert it into the target type. If the input
 * value is not a {@link String} then it is assumed the user has explicitly chosen the required type and no attempt is
 * made to perform a conversion. This may result in Hive throwing an error if the incorrect type was chosen.
 *
 * @param value The input value.
 * @param typeInfo The target Table's column type.
 */
public static Object convert(Object value, PrimitiveTypeInfo typeInfo) {
  if (value == null) {
    return null;
  }
  if (value instanceof String) {
    return CONVERTER.convert((String) value, type(typeInfo));
  }
  return value;
}
 

/**
 * Deserializes a raw value to the provided type.
 */
private Object deserialize(TypeInfo type, Object rawValue)
        throws SerDeException {
    Object value = null;

    if (rawValue != null) {
        switch (type.getCategory()) {
            case PRIMITIVE:
                value = deserializePrimitive((PrimitiveTypeInfo) type, rawValue);
                break;
            case STRUCT:
                value = deserializeStruct((StructTypeInfo) type, rawValue);
                break;
            case MAP:
                value = deserializeMap((MapTypeInfo) type, rawValue);
                break;
            case LIST:
                value = deserializeList((ListTypeInfo) type, rawValue);
                break;
            case UNION:
                value = deserializeUnion((UnionTypeInfo) type, rawValue);
                break;
        }
    }

    return value;
}
 

private static ObjectInspector getObjectInspector(TypeInfo type) {
	switch (type.getCategory()) {

		case PRIMITIVE:
			PrimitiveTypeInfo primitiveType = (PrimitiveTypeInfo) type;
			return PrimitiveObjectInspectorFactory.getPrimitiveJavaObjectInspector(primitiveType);
		case LIST:
			ListTypeInfo listType = (ListTypeInfo) type;
			return ObjectInspectorFactory.getStandardListObjectInspector(
					getObjectInspector(listType.getListElementTypeInfo()));
		case MAP:
			MapTypeInfo mapType = (MapTypeInfo) type;
			return ObjectInspectorFactory.getStandardMapObjectInspector(
					getObjectInspector(mapType.getMapKeyTypeInfo()), getObjectInspector(mapType.getMapValueTypeInfo()));
		case STRUCT:
			StructTypeInfo structType = (StructTypeInfo) type;
			List<TypeInfo> fieldTypes = structType.getAllStructFieldTypeInfos();

			List<ObjectInspector> fieldInspectors = new ArrayList<ObjectInspector>();
			for (TypeInfo fieldType : fieldTypes) {
				fieldInspectors.add(getObjectInspector(fieldType));
			}

			return ObjectInspectorFactory.getStandardStructObjectInspector(
					structType.getAllStructFieldNames(), fieldInspectors);
		default:
			throw new CatalogException("Unsupported Hive type category " + type.getCategory());
	}
}