Examples with UDFArgumentLengthException org.apache.hadoop.hive.ql.exec.UDFArgumentLengthException used on opensource projects

Example 36 with UDFArgumentLengthException

use of org.apache.hadoop.hive.ql.exec.UDFArgumentLengthException in project hive by apache.

the class GenericUDFBaseNwayCompare method initialize.

@Override
public ObjectInspector initialize(ObjectInspector[] arguments) throws UDFArgumentException {
    if (arguments.length < 2) {
        throw new UDFArgumentLengthException(getFuncName() + " requires at least 2 arguments, got " + arguments.length);
    }
    if (arguments[0].getCategory() != ObjectInspector.Category.PRIMITIVE) {
        throw new UDFArgumentException(getFuncName() + " only takes primitive types, got " + arguments[0].getTypeName());
    }
    argumentOIs = arguments;
    converters = new Converter[arguments.length];
    TypeInfo commonInfo = TypeInfoUtils.getTypeInfoFromObjectInspector(arguments[0]);
    for (int i = 1; i < arguments.length; i++) {
        PrimitiveTypeInfo currInfo = (PrimitiveTypeInfo) TypeInfoUtils.getTypeInfoFromObjectInspector(arguments[i]);
        commonInfo = FunctionRegistry.getCommonClassForComparison(commonInfo, currInfo);
    }
    resultOI = TypeInfoUtils.getStandardWritableObjectInspectorFromTypeInfo((commonInfo == null) ? TypeInfoFactory.doubleTypeInfo : commonInfo);
    for (int i = 0; i < arguments.length; i++) {
        converters[i] = ObjectInspectorConverters.getConverter(arguments[i], resultOI);
    }
    return resultOI;
}

Example 37 with UDFArgumentLengthException

use of org.apache.hadoop.hive.ql.exec.UDFArgumentLengthException in project hive by apache.

the class GenericUDFNamedStruct method initialize.

@Override
public ObjectInspector initialize(ObjectInspector[] arguments) throws UDFArgumentException {
    int numFields = arguments.length;
    if (numFields % 2 == 1) {
        throw new UDFArgumentLengthException("NAMED_STRUCT expects an even number of arguments.");
    }
    ret = new Object[numFields / 2];
    ArrayList<String> fname = new ArrayList<String>(numFields / 2);
    ArrayList<ObjectInspector> retOIs = new ArrayList<ObjectInspector>(numFields / 2);
    for (int f = 0; f < numFields; f += 2) {
        if (!(arguments[f] instanceof ConstantObjectInspector)) {
            throw new UDFArgumentTypeException(f, "Even arguments" + " to NAMED_STRUCT must be a constant STRING." + arguments[f].toString());
        }
        ConstantObjectInspector constantOI = (ConstantObjectInspector) arguments[f];
        fname.add(constantOI.getWritableConstantValue().toString());
        retOIs.add(arguments[f + 1]);
    }
    StructObjectInspector soi = ObjectInspectorFactory.getStandardStructObjectInspector(fname, retOIs);
    return soi;
}

Example 38 with UDFArgumentLengthException

use of org.apache.hadoop.hive.ql.exec.UDFArgumentLengthException in project hive by apache.

the class GenericUDFIndex method initialize.

@Override
public ObjectInspector initialize(ObjectInspector[] arguments) throws UDFArgumentException {
    if (arguments.length != 2) {
        throw new UDFArgumentLengthException("The function INDEX accepts exactly 2 arguments.");
    }
    if (arguments[0] instanceof MapObjectInspector) {
        // index into a map
        mapOI = (MapObjectInspector) arguments[0];
        listOI = null;
    } else if (arguments[0] instanceof ListObjectInspector) {
        // index into a list
        listOI = (ListObjectInspector) arguments[0];
        mapOI = null;
    } else {
        throw new UDFArgumentTypeException(0, "\"" + Category.MAP.toString().toLowerCase() + "\" or \"" + Category.LIST.toString().toLowerCase() + "\" is expected at function INDEX, but \"" + arguments[0].getTypeName() + "\" is found");
    }
    // index has to be a primitive
    if (!(arguments[1] instanceof PrimitiveObjectInspector)) {
        throw new UDFArgumentTypeException(1, "Primitive Type is expected but " + arguments[1].getTypeName() + "\" is found");
    }
    PrimitiveObjectInspector inputOI = (PrimitiveObjectInspector) arguments[1];
    ObjectInspector returnOI;
    ObjectInspector indexOI;
    if (mapOI != null) {
        indexOI = ObjectInspectorConverters.getConvertedOI(inputOI, mapOI.getMapKeyObjectInspector());
        returnOI = mapOI.getMapValueObjectInspector();
    } else {
        indexOI = PrimitiveObjectInspectorFactory.writableIntObjectInspector;
        returnOI = listOI.getListElementObjectInspector();
    }
    converter = ObjectInspectorConverters.getConverter(inputOI, indexOI);
    return returnOI;
}

Example 39 with UDFArgumentLengthException

use of org.apache.hadoop.hive.ql.exec.UDFArgumentLengthException in project hive by apache.

the class GenericUDFCurrentDate method initialize.

@Override
public ObjectInspector initialize(ObjectInspector[] arguments) throws UDFArgumentException {
    if (arguments.length != 0) {
        throw new UDFArgumentLengthException("The function CURRENT_DATE does not take any arguments, but found " + arguments.length);
    }
    if (currentDate == null) {
        Date dateVal = Date.valueOf(SessionState.get().getQueryCurrentTimestamp().toString().substring(0, 10));
        currentDate = new DateWritable(dateVal);
    }
    return PrimitiveObjectInspectorFactory.writableDateObjectInspector;
}

Example 40 with UDFArgumentLengthException

use of org.apache.hadoop.hive.ql.exec.UDFArgumentLengthException in project hive by apache.

the class GenericUDFLength method initialize.

@Override
public ObjectInspector initialize(ObjectInspector[] arguments) throws UDFArgumentException {
    if (arguments.length != 1) {
        throw new UDFArgumentLengthException("LENGTH requires 1 argument, got " + arguments.length);
    }
    if (arguments[0].getCategory() != ObjectInspector.Category.PRIMITIVE) {
        throw new UDFArgumentException("LENGTH only takes primitive types, got " + argumentOI.getTypeName());
    }
    argumentOI = (PrimitiveObjectInspector) arguments[0];
    PrimitiveObjectInspector.PrimitiveCategory inputType = argumentOI.getPrimitiveCategory();
    ObjectInspector outputOI = null;
    switch(inputType) {
        case CHAR:
        case VARCHAR:
        case STRING:
            isInputString = true;
            stringConverter = new PrimitiveObjectInspectorConverter.StringConverter(argumentOI);
            break;
        case BINARY:
            isInputString = false;
            binaryConverter = new PrimitiveObjectInspectorConverter.BinaryConverter(argumentOI, PrimitiveObjectInspectorFactory.writableBinaryObjectInspector);
            break;
        default:
            throw new UDFArgumentException(" LENGTH() only takes STRING/CHAR/VARCHAR/BINARY types as first argument, got " + inputType);
    }
    outputOI = PrimitiveObjectInspectorFactory.writableIntObjectInspector;
    return outputOI;
}