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

Example 36 with UDFArgumentException

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

the class GenericUDFToVarchar method initialize.

@Override
public ObjectInspector initialize(ObjectInspector[] arguments) throws UDFArgumentException {
    if (arguments.length != 1) {
        throw new UDFArgumentException("VARCHAR cast requires a value argument");
    }
    try {
        argumentOI = (PrimitiveObjectInspector) arguments[0];
    } catch (ClassCastException e) {
        throw new UDFArgumentException("The function VARCHAR takes only primitive types");
    }
    // Check if this UDF has been provided with type params for the output varchar type
    SettableHiveVarcharObjectInspector outputOI;
    outputOI = (SettableHiveVarcharObjectInspector) PrimitiveObjectInspectorFactory.getPrimitiveWritableObjectInspector(typeInfo);
    converter = new HiveVarcharConverter(argumentOI, outputOI);
    return outputOI;
}

Example 37 with UDFArgumentException

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

the class GenericUDFToChar method initialize.

@Override
public ObjectInspector initialize(ObjectInspector[] arguments) throws UDFArgumentException {
    if (arguments.length != 1) {
        throw new UDFArgumentException("CHAR cast requires a value argument");
    }
    try {
        argumentOI = (PrimitiveObjectInspector) arguments[0];
    } catch (ClassCastException e) {
        throw new UDFArgumentException("The function CHAR takes only primitive types");
    }
    // Check if this UDF has been provided with type params for the output char type
    SettableHiveCharObjectInspector outputOI;
    outputOI = (SettableHiveCharObjectInspector) PrimitiveObjectInspectorFactory.getPrimitiveWritableObjectInspector(typeInfo);
    converter = new HiveCharConverter(argumentOI, outputOI);
    return outputOI;
}

Example 38 with UDFArgumentException

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

the class TestGenericUDFDeserialize method testOneArg.

@Test
public void testOneArg() throws HiveException {
    GenericUDFDeserialize udf = new GenericUDFDeserialize();
    ObjectInspector valueOI1 = PrimitiveObjectInspectorFactory.writableStringObjectInspector;
    ObjectInspector valueOI2 = PrimitiveObjectInspectorFactory.writableStringObjectInspector;
    UDFArgumentException ex = null;
    try {
        udf.initialize(new ObjectInspector[] { valueOI1 });
    } catch (UDFArgumentException e) {
        ex = e;
    }
    assertTrue(ex.getMessage().contains("The function deserialize accepts 2 arguments."));
    assertNotNull("The function deserialize() accepts 2 argument.", ex);
    ex = null;
    try {
        udf.initialize(new ObjectInspector[] { valueOI2, valueOI1 });
    } catch (UDFArgumentException e) {
        ex = e;
    }
    assertNull("The function deserialize() accepts 2 argument.", ex);
}

Example 39 with UDFArgumentException

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

the class TestGenericUDFLeast method testOneArg.

@Test
public void testOneArg() throws HiveException {
    @SuppressWarnings("resource") GenericUDFLeast udf = new GenericUDFLeast();
    ObjectInspector valueOI1 = PrimitiveObjectInspectorFactory.writableStringObjectInspector;
    ObjectInspector[] arguments = { valueOI1 };
    UDFArgumentException ex = null;
    try {
        udf.initialize(arguments);
    } catch (UDFArgumentException e) {
        ex = e;
    }
    assertNotNull("least() test ", ex);
}

Example 40 with UDFArgumentException

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

the class GenericUDFBaseTrim method initialize.

@Override
public ObjectInspector initialize(ObjectInspector[] arguments) throws UDFArgumentException {
    if (arguments.length != 1) {
        throw new UDFArgumentException(udfName + " requires one value argument. Found :" + arguments.length);
    }
    PrimitiveObjectInspector argumentOI;
    if (arguments[0] instanceof PrimitiveObjectInspector) {
        argumentOI = (PrimitiveObjectInspector) arguments[0];
    } else {
        throw new UDFArgumentException(udfName + " takes only primitive types. found " + arguments[0].getTypeName());
    }
    switch(argumentOI.getPrimitiveCategory()) {
        case STRING:
        case CHAR:
        case VARCHAR:
            break;
        default:
            throw new UDFArgumentException(udfName + " takes only STRING/CHAR/VARCHAR types. Found " + argumentOI.getPrimitiveCategory());
    }
    converter = new TextConverter(argumentOI);
    return PrimitiveObjectInspectorFactory.writableStringObjectInspector;
}