Package org.apache.hadoop.hive.ql.udf.generic

Examples of org.apache.hadoop.hive.ql.udf.generic.GenericUDFDate

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import org.apache.hadoop.hive.serde2.objectinspector.primitive.PrimitiveObjectInspectorFactory;
import org.apache.hadoop.io.Text;

public class TestGenericUDFDate extends TestCase {
  public void testStringToDate() throws HiveException {
    GenericUDFDate udf = new GenericUDFDate();
    ObjectInspector valueOI = PrimitiveObjectInspectorFactory.javaStringObjectInspector;
    ObjectInspector[] arguments = {valueOI};

    udf.initialize(arguments);
    DeferredObject valueObj = new DeferredJavaObject(new Text("2009-07-30"));
    DeferredObject[] args = {valueObj};
    Text output = (Text) udf.evaluate(args);

    assertEquals("to_date() test for STRING failed ", "2009-07-30", output.toString());

    // Try with null args
    DeferredObject[] nullArgs = { new DeferredJavaObject(null) };
    output = (Text) udf.evaluate(nullArgs);
    assertNull("to_date() with null STRING", output);
  }
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    output = (Text) udf.evaluate(nullArgs);
    assertNull("to_date() with null STRING", output);
  }

  public void testTimestampToDate() throws HiveException {
    GenericUDFDate udf = new GenericUDFDate();
    ObjectInspector valueOI = PrimitiveObjectInspectorFactory.writableTimestampObjectInspector;
    ObjectInspector[] arguments = {valueOI};

    udf.initialize(arguments);
    DeferredObject valueObj = new DeferredJavaObject(new TimestampWritable(new Timestamp(109, 06,
        30, 4, 17, 52, 0)));
    DeferredObject[] args = {valueObj};
    Text output = (Text) udf.evaluate(args);

    assertEquals("to_date() test for TIMESTAMP failed ", "2009-07-30", output.toString());

    // Try with null args
    DeferredObject[] nullArgs = { new DeferredJavaObject(null) };
    output = (Text) udf.evaluate(nullArgs);
    assertNull("to_date() with null TIMESTAMP", output);
  }
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    output = (Text) udf.evaluate(nullArgs);
    assertNull("to_date() with null TIMESTAMP", output);
  }

  public void testDateWritablepToDate() throws HiveException {
    GenericUDFDate udf = new GenericUDFDate();
    ObjectInspector valueOI = PrimitiveObjectInspectorFactory.writableDateObjectInspector;
    ObjectInspector[] arguments = {valueOI};

    udf.initialize(arguments);
    DeferredObject valueObj = new DeferredJavaObject(new DateWritable(new Date(109, 06, 30)));
    DeferredObject[] args = {valueObj};
    Text output = (Text) udf.evaluate(args);

    assertEquals("to_date() test for DATEWRITABLE failed ", "2009-07-30", output.toString());

    // Try with null args
    DeferredObject[] nullArgs = { new DeferredJavaObject(null) };
    output = (Text) udf.evaluate(nullArgs);
    assertNull("to_date() with null DATE", output);
  }
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Related Classes of org.apache.hadoop.hive.ql.udf.generic.GenericUDFDate

  • org.apache.hadoop.hive.ql.udf.TestGenericUDFDate
  • org.apache.hadoop.hive.serde2.io.DateWritable
  • org.apache.hadoop.hive.serde2.objectinspector.ObjectInspector
  • org.apache.hadoop.hive.serde2.objectinspector.primitive.PrimitiveObjectInspectorConverter.TimestampConverter
  • java.sql.Timestamp
  • java.util.Date
  • org.apache.hadoop.hive.ql.exec.UDFArgumentLengthException
  • org.apache.hadoop.hive.ql.exec.UDFArgumentException
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