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

Examples of org.apache.hadoop.hive.ql.udf.generic.GenericUDFAbs.evaluate()

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    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;
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    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());
  }

  public void testLong() throws HiveException {
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    ObjectInspector[] arguments = {valueOI};

    udf.initialize(arguments);
    DeferredObject valueObj = new DeferredJavaObject(new LongWritable(107L));
    DeferredObject[] args = {valueObj};
    LongWritable output = (LongWritable) udf.evaluate(args);

    assertEquals("abs() test for LONG failed ", 107, output.get());

    valueObj = new DeferredJavaObject(new LongWritable(-107L));
    args[0] = valueObj;
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    assertEquals("abs() test for LONG failed ", 107, output.get());

    valueObj = new DeferredJavaObject(new LongWritable(-107L));
    args[0] = valueObj;
    output = (LongWritable) udf.evaluate(args);

    assertEquals("abs() test for LONG failed ", 107, output.get());
  }

  public void testDouble() throws HiveException {
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    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;
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    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());
  }

  public void testFloat() throws HiveException {
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    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));
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    // 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);
  }

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    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;
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    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());
  }

  public void testHiveDecimal() throws HiveException {
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