Examples with GenericUDFAbs org.apache.hadoop.hive.ql.udf.generic.GenericUDFAbs used on opensource projects

Example 1 with GenericUDFAbs

use of org.apache.hadoop.hive.ql.udf.generic.GenericUDFAbs in project hive by apache.

the class TestGenericUDFAbs method testFloat.

public void testFloat() throws HiveException {
    GenericUDFAbs udf = new GenericUDFAbs();
    ObjectInspector valueOI = PrimitiveObjectInspectorFactory.writableFloatObjectInspector;
    ObjectInspector[] arguments = { valueOI };
    udf.initialize(arguments);
    DeferredObject valueObj = new DeferredJavaObject(new FloatWritable(107.78f));
    DeferredObject[] args = { valueObj };
    DoubleWritable output = (DoubleWritable) udf.evaluate(args);
    // Make sure flow and double equality compare works
    assertTrue("abs() test for Float failed ", Math.abs(107.78 - output.get()) < 0.0001);
    valueObj = new DeferredJavaObject(new FloatWritable(-107.78f));
    args[0] = valueObj;
    output = (DoubleWritable) udf.evaluate(args);
    assertTrue("abs() test for Float failed ", Math.abs(107.78 - output.get()) < 0.0001);
}

Example 2 with GenericUDFAbs

use of org.apache.hadoop.hive.ql.udf.generic.GenericUDFAbs in project hive by apache.

the class TestGenericUDFAbs method testHiveDecimal.

public void testHiveDecimal() throws HiveException {
    GenericUDFAbs udf = new GenericUDFAbs();
    int prec = 12;
    int scale = 9;
    ObjectInspector valueOI = PrimitiveObjectInspectorFactory.getPrimitiveWritableObjectInspector(TypeInfoFactory.getDecimalTypeInfo(prec, scale));
    ObjectInspector[] arguments = { valueOI };
    PrimitiveObjectInspector outputOI = (PrimitiveObjectInspector) udf.initialize(arguments);
    // Make sure result precision/scale matches the input prec/scale
    assertEquals("result precision for abs()", prec, outputOI.precision());
    assertEquals("result scale for abs()", scale, outputOI.scale());
    DeferredObject valueObj = new DeferredJavaObject(new HiveDecimalWritable(HiveDecimal.create("107.123456789")));
    DeferredObject[] args = { valueObj };
    HiveDecimalWritable output = (HiveDecimalWritable) udf.evaluate(args);
    assertEquals("abs() test for HiveDecimal failed ", 107.123456789, output.getHiveDecimal().doubleValue());
    valueObj = new DeferredJavaObject(new HiveDecimalWritable(HiveDecimal.create("-107.123456789")));
    args[0] = valueObj;
    output = (HiveDecimalWritable) udf.evaluate(args);
    assertEquals("abs() test for HiveDecimal failed ", 107.123456789, output.getHiveDecimal().doubleValue());
    // null input
    args[0] = new DeferredJavaObject(null);
    output = (HiveDecimalWritable) udf.evaluate(args);
    assertEquals("abs(null)", null, output);
    // if value too large, should also be null
    args[0] = new DeferredJavaObject(new HiveDecimalWritable(HiveDecimal.create("-1000.123456")));
    output = (HiveDecimalWritable) udf.evaluate(args);
    assertEquals("abs() of too large decimal value", null, output);
}

Example 3 with GenericUDFAbs

use of org.apache.hadoop.hive.ql.udf.generic.GenericUDFAbs in project hive by apache.

the class TestGenericUDFAbs method testInt.

public void testInt() throws HiveException {
    GenericUDFAbs udf = new GenericUDFAbs();
    ObjectInspector valueOI = PrimitiveObjectInspectorFactory.writableIntObjectInspector;
    ObjectInspector[] arguments = { valueOI };
    udf.initialize(arguments);
    DeferredObject valueObj = new DeferredJavaObject(new IntWritable(107));
    DeferredObject[] args = { valueObj };
    IntWritable output = (IntWritable) udf.evaluate(args);
    assertEquals("abs() test for INT failed ", 107, output.get());
    valueObj = new DeferredJavaObject(new IntWritable(-107));
    args[0] = valueObj;
    output = (IntWritable) udf.evaluate(args);
    assertEquals("abs() test for INT failed ", 107, output.get());
}

Example 4 with GenericUDFAbs

use of org.apache.hadoop.hive.ql.udf.generic.GenericUDFAbs in project hive by apache.

the class TestGenericUDFAbs method testDouble.

public void testDouble() throws HiveException {
    GenericUDFAbs udf = new GenericUDFAbs();
    ObjectInspector valueOI = PrimitiveObjectInspectorFactory.writableDoubleObjectInspector;
    ObjectInspector[] arguments = { valueOI };
    udf.initialize(arguments);
    DeferredObject valueObj = new DeferredJavaObject(new DoubleWritable(107.78));
    DeferredObject[] args = { valueObj };
    DoubleWritable output = (DoubleWritable) udf.evaluate(args);
    assertEquals("abs() test for Double failed ", 107.78, output.get());
    valueObj = new DeferredJavaObject(new DoubleWritable(-107.78));
    args[0] = valueObj;
    output = (DoubleWritable) udf.evaluate(args);
    assertEquals("abs() test for Double failed ", 107.78, output.get());
}

Example 5 with GenericUDFAbs

use of org.apache.hadoop.hive.ql.udf.generic.GenericUDFAbs in project hive by apache.

the class TestGenericUDFAbs method testText.

public void testText() throws HiveException {
    GenericUDFAbs udf = new GenericUDFAbs();
    ObjectInspector valueOI = PrimitiveObjectInspectorFactory.writableStringObjectInspector;
    ObjectInspector[] arguments = { valueOI };
    udf.initialize(arguments);
    DeferredObject valueObj = new DeferredJavaObject(new Text("123.45"));
    DeferredObject[] args = { valueObj };
    DoubleWritable output = (DoubleWritable) udf.evaluate(args);
    assertEquals("abs() test for String failed ", "123.45", output.toString());
    valueObj = new DeferredJavaObject(new Text("-123.45"));
    args[0] = valueObj;
    output = (DoubleWritable) udf.evaluate(args);
    assertEquals("abs() test for String failed ", "123.45", output.toString());
    valueObj = new DeferredJavaObject(new Text("foo"));
    args[0] = valueObj;
    output = (DoubleWritable) udf.evaluate(args);
    assertEquals("abs() test for String failed ", null, output);
}