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

Package org.apache.hadoop.hive.serde2.typeinfo

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

org.apache.hadoop.hive.serde2.typeinfo.PrimitiveTypeInfo
There are limited number of Primitive Types. All Primitive Types are defined by TypeInfoFactory.isPrimitiveClass(). Always use the TypeInfoFactory to create new TypeInfo objects, instead of directly creating an instance of this class.

      throw new HiveException("Unsupported type "+typename+" for cast to String");
    }
  }


  private Double castConstantToDouble(Object scalar, TypeInfo type) throws HiveException {
    PrimitiveTypeInfo ptinfo = (PrimitiveTypeInfo) type;
    String typename = type.getTypeName();
    switch (ptinfo.getPrimitiveCategory()) {
    case FLOAT:
    case DOUBLE:
    case BYTE:
    case SHORT:
    case INT:

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      throw new HiveException("Unsupported type "+typename+" for cast to Double");
    }
  }


  private Long castConstantToLong(Object scalar, TypeInfo type) throws HiveException {
    PrimitiveTypeInfo ptinfo = (PrimitiveTypeInfo) type;
    String typename = type.getTypeName();
    switch (ptinfo.getPrimitiveCategory()) {
    case FLOAT:
    case DOUBLE:
    case BYTE:
    case SHORT:
    case INT:

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      // Get the string value and convert to a Date value.
      try {
        // todo replace below with joda-time, which supports timezone
        if (expr.getType() == HiveParser.TOK_DATELITERAL) {
          PrimitiveTypeInfo typeInfo = TypeInfoFactory.dateTypeInfo;
          return new ExprNodeConstantDesc(typeInfo,
              Date.valueOf(timeString));
        }
        if (expr.getType() == HiveParser.TOK_TIMESTAMPLITERAL) {
          return new ExprNodeConstantDesc(TypeInfoFactory.timestampTypeInfo,

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          tmpExprNode = ParseUtils.createConversionCast(childExpr, (PrimitiveTypeInfo) tgtDT);
        } else if (isNumeric) {
          // For numeric, we'll do minimum necessary cast - if we cast to the type
          // of expression, bad things will happen.
          GenericUDFBaseNumeric numericUdf = (GenericUDFBaseNumeric)tgtUdf;
          PrimitiveTypeInfo minArgType = numericUdf.deriveMinArgumentCast(childExpr, tgtDT);
          tmpExprNode = ParseUtils.createConversionCast(childExpr, minArgType);
        } else {
          throw new AssertionError("Unexpected " + tgtDT + " - not a numeric op or compare");
        }

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      MAX_LONG_BI = BigInteger.valueOf(Long.MAX_VALUE);


  protected RexNode convert(ExprNodeConstantDesc literal) throws OptiqSemanticException {
    RexBuilder rexBuilder = cluster.getRexBuilder();
    RelDataTypeFactory dtFactory = rexBuilder.getTypeFactory();
    PrimitiveTypeInfo hiveType = (PrimitiveTypeInfo) literal.getTypeInfo();
    RelDataType optiqDataType = TypeConverter.convert(hiveType, dtFactory);


    PrimitiveCategory hiveTypeCategory = hiveType.getPrimitiveCategory();


    ConstantObjectInspector coi = literal.getWritableObjectInspector();
    Object value = ObjectInspectorUtils.copyToStandardJavaObject(coi.getWritableConstantValue(),
        coi);

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    // Column types
    assertEquals(1, aoig.getColumnTypes().size());
    TypeInfo typeInfo = aoig.getColumnTypes().get(0);
    assertTrue(typeInfo instanceof PrimitiveTypeInfo);
    PrimitiveTypeInfo pti = (PrimitiveTypeInfo) typeInfo;
    // Verify the union has been hidden and just the main type has been returned.
    assertEquals(PrimitiveObjectInspector.PrimitiveCategory.STRING, pti.getPrimitiveCategory());
  }

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    // Column types
    assertEquals(1, aoig.getColumnTypes().size());
    TypeInfo typeInfo = aoig.getColumnTypes().get(0);
    assertTrue(typeInfo instanceof PrimitiveTypeInfo);
    PrimitiveTypeInfo pti = (PrimitiveTypeInfo) typeInfo;
    // Verify the union has been hidden and just the main type has been returned.
    assertEquals(PrimitiveObjectInspector.PrimitiveCategory.STRING, pti.getPrimitiveCategory());
  }

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  }


  protected void verifyReturnType(GenericUDF udf,
      String typeStr1, String typeStr2, String expectedTypeStr) throws HiveException {
    // Lookup type infos for our input types and expected return type
    PrimitiveTypeInfo type1 = TypeInfoFactory.getPrimitiveTypeInfo(typeStr1);
    PrimitiveTypeInfo type2 = TypeInfoFactory.getPrimitiveTypeInfo(typeStr2);
    PrimitiveTypeInfo expectedType = TypeInfoFactory.getPrimitiveTypeInfo(expectedTypeStr);


    // Initialize UDF which will output the return type for the UDF.
    ObjectInspector[] inputOIs = {
      PrimitiveObjectInspectorFactory.getPrimitiveWritableObjectInspector(type1),
      PrimitiveObjectInspectorFactory.getPrimitiveWritableObjectInspector(type2)

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   * @param rightOI TypeInfo instance of the right operand
   * @return
   * @throws UDFArgumentException
   */
  private PrimitiveTypeInfo deriveResultTypeInfo() throws UDFArgumentException {
    PrimitiveTypeInfo left = (PrimitiveTypeInfo) TypeInfoUtils.getTypeInfoFromObjectInspector(leftOI);
    PrimitiveTypeInfo right = (PrimitiveTypeInfo) TypeInfoUtils.getTypeInfoFromObjectInspector(rightOI);
    if (!FunctionRegistry.isNumericType(left) || !FunctionRegistry.isNumericType(right)) {
      List<TypeInfo> argTypeInfos = new ArrayList<TypeInfo>(2);
      argTypeInfos.add(left);
      argTypeInfos.add(right);
      throw new NoMatchingMethodException(this.getClass(), argTypeInfos, null);

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   * Default implementation for getting the approximate type info for the operator result.
   * Divide operator overrides this.
   * @return
   */
  protected PrimitiveTypeInfo deriveResultApproxTypeInfo() {
    PrimitiveTypeInfo left = (PrimitiveTypeInfo) TypeInfoUtils.getTypeInfoFromObjectInspector(leftOI);
    PrimitiveTypeInfo right = (PrimitiveTypeInfo) TypeInfoUtils.getTypeInfoFromObjectInspector(rightOI);


    // string types get converted to double
    if (PrimitiveObjectInspectorUtils.getPrimitiveGrouping(left.getPrimitiveCategory())
            == PrimitiveGrouping.STRING_GROUP) {
      left = TypeInfoFactory.doubleTypeInfo;
    }
    if (PrimitiveObjectInspectorUtils.getPrimitiveGrouping(right.getPrimitiveCategory())
        == PrimitiveGrouping.STRING_GROUP) {
      right = TypeInfoFactory.doubleTypeInfo;
    }    


    // Use type promotion

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