Examples with PrimitiveObjectInspector org.apache.hadoop.hive.serde2.objectinspector.PrimitiveObjectInspector used on opensource projects

Example 46 with PrimitiveObjectInspector

use of org.apache.hadoop.hive.serde2.objectinspector.PrimitiveObjectInspector in project hive by apache.

the class GenericUDFPower method initialize.

@Override
public ObjectInspector initialize(ObjectInspector[] arguments) throws UDFArgumentException {
    if (arguments.length != 2) {
        throw new UDFArgumentException(opName + " requires two arguments.");
    }
    for (int i = 0; i < 2; i++) {
        Category category = arguments[i].getCategory();
        if (category != Category.PRIMITIVE) {
            throw new UDFArgumentTypeException(i, "The " + GenericUDFUtils.getOrdinal(i + 1) + " argument of " + opName + "  is expected to a " + Category.PRIMITIVE.toString().toLowerCase() + " type, but " + category.toString().toLowerCase() + " is found");
        }
    }
    baseOI = (PrimitiveObjectInspector) arguments[0];
    if (!FunctionRegistry.isNumericType(baseOI.getTypeInfo())) {
        throw new UDFArgumentTypeException(0, "The " + GenericUDFUtils.getOrdinal(1) + " argument of " + opName + "  is expected to a " + "numeric type, but " + baseOI.getTypeName() + " is found");
    }
    powerOI = (PrimitiveObjectInspector) arguments[1];
    if (!FunctionRegistry.isNumericType(powerOI.getTypeInfo())) {
        throw new UDFArgumentTypeException(1, "The " + GenericUDFUtils.getOrdinal(2) + " argument of " + opName + "  is expected to a " + "numeric type, but " + powerOI.getTypeName() + " is found");
    }
    baseConverter = ObjectInspectorConverters.getConverter(baseOI, PrimitiveObjectInspectorFactory.writableDoubleObjectInspector);
    powerConverter = ObjectInspectorConverters.getConverter(powerOI, PrimitiveObjectInspectorFactory.writableDoubleObjectInspector);
    return resultOI;
}

Example 47 with PrimitiveObjectInspector

use of org.apache.hadoop.hive.serde2.objectinspector.PrimitiveObjectInspector in project hive by apache.

the class GenericUDFPrintf method initialize.

@Override
public ObjectInspector initialize(ObjectInspector[] arguments) throws UDFArgumentException {
    if (arguments.length < 1) {
        throw new UDFArgumentLengthException("The function PRINTF(String format, Obj... args) needs at least one arguments.");
    }
    WritableStringObjectInspector resultOI = PrimitiveObjectInspectorFactory.writableStringObjectInspector;
    if (arguments[0].getCategory() == ObjectInspector.Category.PRIMITIVE) {
        PrimitiveObjectInspector poi = ((PrimitiveObjectInspector) arguments[0]);
        if (poi.getPrimitiveCategory() == PrimitiveObjectInspector.PrimitiveCategory.STRING || poi.getPrimitiveCategory() == PrimitiveObjectInspector.PrimitiveCategory.CHAR || poi.getPrimitiveCategory() == PrimitiveObjectInspector.PrimitiveCategory.VARCHAR || poi.getPrimitiveCategory() == PrimitiveObjectInspector.PrimitiveCategory.VOID) {
            converterFormat = ObjectInspectorConverters.getConverter(arguments[0], resultOI);
        } else {
            throw new UDFArgumentTypeException(0, "Argument 1" + " of function PRINTF must be \"" + serdeConstants.STRING_TYPE_NAME + "\", but \"" + arguments[0].getTypeName() + "\" was found.");
        }
    } else {
        throw new UDFArgumentTypeException(0, "Argument 1" + " of function PRINTF must be \"" + serdeConstants.STRING_TYPE_NAME + "\", but \"" + arguments[0].getTypeName() + "\" was found.");
    }
    for (int i = 1; i < arguments.length; i++) {
        if (!arguments[i].getCategory().equals(Category.PRIMITIVE)) {
            throw new UDFArgumentTypeException(i, "Argument " + (i + 1) + " of function PRINTF must be \"" + Category.PRIMITIVE + "\", but \"" + arguments[i].getTypeName() + "\" was found.");
        }
    }
    argumentOIs = arguments;
    return resultOI;
}

Example 48 with PrimitiveObjectInspector

use of org.apache.hadoop.hive.serde2.objectinspector.PrimitiveObjectInspector in project hive by apache.

the class GenericUDFReflect2 method initialize.

@Override
public ObjectInspector initialize(ObjectInspector[] arguments) throws UDFArgumentException {
    if (arguments.length < 2) {
        throw new UDFArgumentLengthException("The function GenericUDFReflect2(arg0,method[,arg1[,arg2]...])" + " accepts 2 or more arguments.");
    }
    if (arguments[0].getCategory() != ObjectInspector.Category.PRIMITIVE) {
        throw new UDFArgumentTypeException(1, "The target instance should be a primitive type.");
    }
    targetOI = (PrimitiveObjectInspector) arguments[0];
    if (!(arguments[1] instanceof StringObjectInspector)) {
        throw new UDFArgumentTypeException(1, "The method name should be string type.");
    }
    if (!(arguments[1] instanceof ConstantObjectInspector)) {
        throw new UDFArgumentTypeException(1, "The method name should be a constant.");
    }
    Text methodName = (Text) ((ConstantObjectInspector) arguments[1]).getWritableConstantValue();
    if (methodName.toString().equals("hashCode") && arguments.length == 2) {
        // it's non-deterministic
        throw new UDFArgumentTypeException(1, "Use hash() UDF instead of this.");
    }
    setupParameterOIs(arguments, 2);
    Class<?> targetClass = PrimitiveObjectInspectorUtils.getTypeEntryFromPrimitiveCategory(targetOI.getPrimitiveCategory()).primitiveJavaClass;
    try {
        method = findMethod(targetClass, methodName.toString(), null, true);
        // Note: type param is not available here.
        PrimitiveTypeEntry typeEntry = getTypeFor(method.getReturnType());
        returnOI = PrimitiveObjectInspectorFactory.getPrimitiveWritableObjectInspector(typeEntry.primitiveCategory);
        returnObj = (Writable) returnOI.getPrimitiveWritableClass().newInstance();
    } catch (Exception e) {
        throw new UDFArgumentException(e);
    }
    return returnOI;
}

Example 49 with PrimitiveObjectInspector

use of org.apache.hadoop.hive.serde2.objectinspector.PrimitiveObjectInspector in project hive by apache.

the class GenericUDFLower method initialize.

@Override
public ObjectInspector initialize(ObjectInspector[] arguments) throws UDFArgumentException {
    if (arguments.length != 1) {
        throw new UDFArgumentLengthException("LOWER requires 1 argument, got " + arguments.length);
    }
    if (arguments[0].getCategory() != Category.PRIMITIVE) {
        throw new UDFArgumentException("LOWER only takes primitive types, got " + argumentOI.getTypeName());
    }
    argumentOI = (PrimitiveObjectInspector) arguments[0];
    stringConverter = new PrimitiveObjectInspectorConverter.StringConverter(argumentOI);
    PrimitiveCategory inputType = argumentOI.getPrimitiveCategory();
    ObjectInspector outputOI = null;
    BaseCharTypeInfo typeInfo;
    switch(inputType) {
        case CHAR:
            // return type should have same length as the input.
            returnType = inputType;
            typeInfo = TypeInfoFactory.getCharTypeInfo(GenericUDFUtils.StringHelper.getFixedStringSizeForType(argumentOI));
            outputOI = PrimitiveObjectInspectorFactory.getPrimitiveWritableObjectInspector(typeInfo);
            break;
        case VARCHAR:
            // return type should have same length as the input.
            returnType = inputType;
            typeInfo = TypeInfoFactory.getVarcharTypeInfo(GenericUDFUtils.StringHelper.getFixedStringSizeForType(argumentOI));
            outputOI = PrimitiveObjectInspectorFactory.getPrimitiveWritableObjectInspector(typeInfo);
            break;
        default:
            returnType = PrimitiveCategory.STRING;
            outputOI = PrimitiveObjectInspectorFactory.writableStringObjectInspector;
            break;
    }
    returnHelper = new GenericUDFUtils.StringHelper(returnType);
    return outputOI;
}

Example 50 with PrimitiveObjectInspector

use of org.apache.hadoop.hive.serde2.objectinspector.PrimitiveObjectInspector in project hive by apache.

the class GenericUDFMap method initialize.

@Override
public ObjectInspector initialize(ObjectInspector[] arguments) throws UDFArgumentException {
    if (arguments.length % 2 != 0) {
        throw new UDFArgumentLengthException("Arguments must be in key/value pairs");
    }
    GenericUDFUtils.ReturnObjectInspectorResolver keyOIResolver = new GenericUDFUtils.ReturnObjectInspectorResolver(true);
    GenericUDFUtils.ReturnObjectInspectorResolver valueOIResolver = new GenericUDFUtils.ReturnObjectInspectorResolver(true);
    for (int i = 0; i < arguments.length; i++) {
        if (i % 2 == 0) {
            // Keys
            if (!(arguments[i] instanceof PrimitiveObjectInspector)) {
                throw new UDFArgumentTypeException(1, "Primitive Type is expected but " + arguments[i].getTypeName() + "\" is found");
            }
            if (!keyOIResolver.update(arguments[i])) {
                throw new UDFArgumentTypeException(i, "Key type \"" + arguments[i].getTypeName() + "\" is different from preceding key types. " + "Previous key type was \"" + arguments[i - 2].getTypeName() + "\"");
            }
        } else {
            // Values
            if (!valueOIResolver.update(arguments[i]) && !compatibleTypes(arguments[i], arguments[i - 2])) {
                throw new UDFArgumentTypeException(i, "Value type \"" + arguments[i].getTypeName() + "\" is different from preceding value types. " + "Previous value type was \"" + arguments[i - 2].getTypeName() + "\"");
            }
        }
    }
    ObjectInspector keyOI = keyOIResolver.get(PrimitiveObjectInspectorFactory.javaStringObjectInspector);
    ObjectInspector valueOI = valueOIResolver.get(PrimitiveObjectInspectorFactory.javaStringObjectInspector);
    converters = new Converter[arguments.length];
    for (int i = 0; i < arguments.length; i++) {
        converters[i] = ObjectInspectorConverters.getConverter(arguments[i], i % 2 == 0 ? keyOI : valueOI);
    }
    return ObjectInspectorFactory.getStandardMapObjectInspector(keyOI, valueOI);
}