Package org.apache.hadoop.hive.ql.exec

Examples of org.apache.hadoop.hive.ql.exec.UDFArgumentTypeException

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  @Override
  public GenericUDAFEvaluator getEvaluator(
      TypeInfo[] parameters) throws SemanticException {
    if (parameters.length != 1) {
      throw new UDFArgumentTypeException(parameters.length - 1,
          "Exactly one argument is expected.");
    }
    return new GenericUDAFCountEvaluator();
  }
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    }

    for(int i = 0; i < arguments.length; i++) {
      Category category = arguments[i].getCategory();
      if(category != Category.PRIMITIVE) {
        throw new UDFArgumentTypeException(i,
            "The " + GenericUDFUtils.getOrdinal(i + 1) + " argument of function ELT is expected to a "
            + Category.PRIMITIVE.toString().toLowerCase()
            + " type, but " + category.toString().toLowerCase() + " is found");
      }
    }
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    this.argumentOIs = arguments;
    returnOIResolver = new GenericUDFUtils.ReturnObjectInspectorResolver();
   
    for (int i=0; i+1<arguments.length; i+=2) {
      if (!arguments[i].getTypeName().equals(Constants.BOOLEAN_TYPE_NAME)) {
        throw new UDFArgumentTypeException(i,
            "\"" + Constants.BOOLEAN_TYPE_NAME + "\" is expected after WHEN, "
            + "but \"" + arguments[i].getTypeName() + "\" is found");
      }
      if (!returnOIResolver.update(arguments[i+1])) {
        throw new UDFArgumentTypeException(i+1,
            "The expressions after THEN should have the same type: \""
            + returnOIResolver.get().getTypeName() + "\" is expected but \""
            + arguments[i+1].getTypeName() + "\" is found");
      }
    }
    if (arguments.length % 2 == 1) {
      int i = arguments.length - 2;
      if (!returnOIResolver.update(arguments[i+1])) {
        throw new UDFArgumentTypeException(i+1,
            "The expression after ELSE should have the same type as those after THEN: \""
            + returnOIResolver.get().getTypeName() + "\" is expected but \""
            + arguments[i+1].getTypeName() + "\" is found");
      }
    }
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  @Override
  public GenericUDAFEvaluator getEvaluator(
      TypeInfo[] parameters) throws SemanticException {
    if (parameters.length != 1) {
      throw new UDFArgumentTypeException(parameters.length - 1,
          "Exactly one argument is expected.");
    }
   
    if (parameters[0].getCategory() != ObjectInspector.Category.PRIMITIVE) {
      throw new UDFArgumentTypeException(0,
          "Only primitive type arguments are accepted but "
          + parameters[0].getTypeName() + " is passed.");
    }
    switch (((PrimitiveTypeInfo)parameters[0]).getPrimitiveCategory()) {
      case BYTE:
      case SHORT:
      case INT:
      case LONG:
      case FLOAT:
      case DOUBLE:
      case STRING:
        return new GenericUDAFVarianceSampleEvaluator();
      case BOOLEAN:
      default:
        throw new UDFArgumentTypeException(0,
            "Only numeric or string type arguments are accepted but "
            + parameters[0].getTypeName() + " is passed.");
    }
  }
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  @Override
  public GenericUDAFEvaluator getEvaluator(
      TypeInfo[] parameters) throws SemanticException {
    if (parameters.length != 1) {
      throw new UDFArgumentTypeException(parameters.length - 1,
          "Exactly one argument is expected.");
    }
   
    if (parameters[0].getCategory() != ObjectInspector.Category.PRIMITIVE) {
      throw new UDFArgumentTypeException(0,
          "Only primitive type arguments are accepted but " + parameters[0].getTypeName() + " is passed.");
    }
    switch (((PrimitiveTypeInfo)parameters[0]).getPrimitiveCategory()) {
      case BYTE:
      case SHORT:
      case INT:
      case LONG:
        return new GenericUDAFSumLong();
      case FLOAT:
      case DOUBLE:
      case STRING:
        return new GenericUDAFSumDouble();
      case BOOLEAN:
      default:
        throw new UDFArgumentTypeException(0,
            "Only numeric or string type arguments are accepted but " + parameters[0].getTypeName() + " is passed.");
    }
  }
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    }

    for(int i = 0; i < 3; i++) {
      if(arguments[i].getTypeName() != Constants.STRING_TYPE_NAME
          && arguments[i].getTypeName() != Constants.VOID_TYPE_NAME) {
        throw new UDFArgumentTypeException(i,
            "The " + getOrdinal(i + 1) + " argument of function TRANSLATE is expected to \"" + Constants.STRING_TYPE_NAME
            + "\", but \"" + arguments[i].getTypeName() + "\" is found");
      }
    }
   
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    for (int i = 0; i < 4; i++) {
      if (arguments[i].getCategory() == ObjectInspector.Category.PRIMITIVE) {
        PrimitiveObjectInspector poi = ((PrimitiveObjectInspector) arguments[i]);

        if (!(poi.getPrimitiveCategory() == PrimitiveObjectInspector.PrimitiveCategory.STRING)) {
          throw new UDFArgumentTypeException(i,
              "The argument of function  should be \""
              + Constants.STRING_TYPE_NAME + "\", but \""
              + arguments[i].getTypeName() + "\" is found");
        }
      }
    }
    for (int i = 4; i < arguments.length; i++) {
      if (arguments[i].getCategory() != ObjectInspector.Category.PRIMITIVE) {
        throw new UDFArgumentTypeException(i,
            "The argument of function should be primative" + ", but \""
            + arguments[i].getTypeName() + "\" is found");
      }
    }
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  public ObjectInspector initialize(ObjectInspector[] arguments)
  throws UDFArgumentException {
    if (arguments.length != 1) {
      throw new UDFArgumentLengthException("The function MAP_KEYS only accepts one argument.");
    } else if (!(arguments[0] instanceof MapObjectInspector)) {
      throw new UDFArgumentTypeException(0, "\""
          + Category.MAP.toString().toLowerCase()
          + "\" is expected at function MAP_KEYS, " + "but \""
          + arguments[0].getTypeName() + "\" is found");
    }
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    argumentOIs = arguments;

    for (int i = 0; i < arguments.length; i++) {
      Category category = arguments[i].getCategory();
      if (category != Category.PRIMITIVE) {
        throw new UDFArgumentTypeException(i, "The "
            + GenericUDFUtils.getOrdinal(i + 1)
            + " argument of function FIELD is expected to a "
            + Category.PRIMITIVE.toString().toLowerCase() + " type, but "
            + category.toString().toLowerCase() + " is found");
      }
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  @Override
  public GenericUDAFEvaluator getEvaluator(TypeInfo[] parameters)
      throws SemanticException {
    if (parameters.length != 2) {
      throw new UDFArgumentTypeException(parameters.length - 1,
          "Exactly two arguments are expected.");
    }

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

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

    switch (((PrimitiveTypeInfo) parameters[0]).getPrimitiveCategory()) {
    case BYTE:
    case SHORT:
    case INT:
    case LONG:
    case FLOAT:
    case DOUBLE:
    case TIMESTAMP:
      switch (((PrimitiveTypeInfo) parameters[1]).getPrimitiveCategory()) {
      case BYTE:
      case SHORT:
      case INT:
      case LONG:
      case FLOAT:
      case DOUBLE:
      case TIMESTAMP:
        return new GenericUDAFCovarianceSampleEvaluator();
      case STRING:
      case BOOLEAN:
      default:
        throw new UDFArgumentTypeException(1,
            "Only numeric or string type arguments are accepted but "
            + parameters[1].getTypeName() + " is passed.");
      }
    case STRING:
    case BOOLEAN:
    default:
      throw new UDFArgumentTypeException(0,
          "Only numeric or string type arguments are accepted but "
          + parameters[0].getTypeName() + " is passed.");
    }
  }
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