Examples with TypeInfoFactory.getVarcharTypeInfo org.apache.hadoop.hive.serde2.typeinfo.TypeInfoFactory.getVarcharTypeInfo used on opensource projects

Example 11 with TypeInfoFactory.getVarcharTypeInfo

use of org.apache.hadoop.hive.serde2.typeinfo.TypeInfoFactory.getVarcharTypeInfo in project hive by apache.

the class GenericUDFUpper method initialize.

@Override
public ObjectInspector initialize(ObjectInspector[] arguments) throws UDFArgumentException {
    if (arguments.length != 1) {
        throw new UDFArgumentLengthException("UPPER requires 1 argument, got " + arguments.length);
    }
    if (arguments[0].getCategory() != Category.PRIMITIVE) {
        throw new UDFArgumentException("UPPER only takes primitive types, got " + arguments[0].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 12 with TypeInfoFactory.getVarcharTypeInfo

use of org.apache.hadoop.hive.serde2.typeinfo.TypeInfoFactory.getVarcharTypeInfo in project hive by apache.

the class TestGenericUDFFloor method testVarchar.

@Test
public void testVarchar() throws HiveException {
    GenericUDFFloor udf = new GenericUDFFloor();
    HiveVarchar vc = new HiveVarchar("32300.004747", 12);
    HiveVarcharWritable input = new HiveVarcharWritable(vc);
    VarcharTypeInfo inputTypeInfo = TypeInfoFactory.getVarcharTypeInfo(12);
    ObjectInspector[] inputOIs = { PrimitiveObjectInspectorFactory.getPrimitiveWritableObjectInspector(inputTypeInfo) };
    DeferredObject[] args = { new DeferredJavaObject(input) };
    PrimitiveObjectInspector oi = (PrimitiveObjectInspector) udf.initialize(inputOIs);
    Assert.assertEquals(TypeInfoFactory.longTypeInfo, oi.getTypeInfo());
    LongWritable res = (LongWritable) udf.evaluate(args);
    Assert.assertEquals(32300L, res.get());
}

Example 13 with TypeInfoFactory.getVarcharTypeInfo

use of org.apache.hadoop.hive.serde2.typeinfo.TypeInfoFactory.getVarcharTypeInfo in project hive by apache.

the class GenericUDFConcat method initialize.

@Override
public ObjectInspector initialize(ObjectInspector[] arguments) throws UDFArgumentException {
    // Loop through all the inputs to determine the appropriate return type/length.
    // Return type:
    // All CHAR inputs: return CHAR
    // All VARCHAR inputs: return VARCHAR
    // All CHAR/VARCHAR inputs: return VARCHAR
    // All BINARY inputs: return BINARY
    // Otherwise return STRING
    argumentOIs = arguments;
    PrimitiveCategory currentCategory;
    PrimitiveObjectInspector poi;
    boolean fixedLengthReturnValue = true;
    // Only for char/varchar return types
    int returnLength = 0;
    for (int idx = 0; idx < arguments.length; ++idx) {
        if (arguments[idx].getCategory() != Category.PRIMITIVE) {
            throw new UDFArgumentException("CONCAT only takes primitive arguments");
        }
        poi = (PrimitiveObjectInspector) arguments[idx];
        currentCategory = poi.getPrimitiveCategory();
        if (idx == 0) {
            returnType = currentCategory;
        }
        switch(currentCategory) {
            case BINARY:
                fixedLengthReturnValue = false;
                if (returnType != currentCategory) {
                    // mix of binary/non-binary args
                    returnType = PrimitiveCategory.STRING;
                }
                break;
            case CHAR:
            case VARCHAR:
                if (!fixedLengthReturnValue) {
                    returnType = PrimitiveCategory.STRING;
                }
                if (fixedLengthReturnValue && currentCategory == PrimitiveCategory.VARCHAR) {
                    returnType = PrimitiveCategory.VARCHAR;
                }
                break;
            default:
                returnType = PrimitiveCategory.STRING;
                fixedLengthReturnValue = false;
                break;
        }
        // max length for the char/varchar, then the return type reverts to string.
        if (fixedLengthReturnValue) {
            returnLength += GenericUDFUtils.StringHelper.getFixedStringSizeForType(poi);
            if ((returnType == PrimitiveCategory.VARCHAR && returnLength > HiveVarchar.MAX_VARCHAR_LENGTH) || (returnType == PrimitiveCategory.CHAR && returnLength > HiveChar.MAX_CHAR_LENGTH)) {
                returnType = PrimitiveCategory.STRING;
                fixedLengthReturnValue = false;
            }
        }
    }
    if (returnType == PrimitiveCategory.BINARY) {
        bw = new BytesWritable[arguments.length];
        return PrimitiveObjectInspectorFactory.writableBinaryObjectInspector;
    } else {
        // treat all inputs as string, the return value will be converted to the appropriate type.
        createStringConverters();
        returnHelper = new GenericUDFUtils.StringHelper(returnType);
        BaseCharTypeInfo typeInfo;
        switch(returnType) {
            case STRING:
                return PrimitiveObjectInspectorFactory.writableStringObjectInspector;
            case CHAR:
                typeInfo = TypeInfoFactory.getCharTypeInfo(returnLength);
                return PrimitiveObjectInspectorFactory.getPrimitiveWritableObjectInspector(typeInfo);
            case VARCHAR:
                typeInfo = TypeInfoFactory.getVarcharTypeInfo(returnLength);
                return PrimitiveObjectInspectorFactory.getPrimitiveWritableObjectInspector(typeInfo);
            default:
                throw new UDFArgumentException("Unexpected CONCAT return type of " + returnType);
        }
    }
}