Java Code Examples for org.apache.spark.sql.types.Decimal#toJavaBigDecimal()

The following examples show how to use org.apache.spark.sql.types.Decimal#toJavaBigDecimal() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.

Example 1

Source File: SparkParquetWriters.java From iceberg with Apache License 2.0

6 votes

@Override
public void write(int repetitionLevel, Decimal decimal) {
  Preconditions.checkArgument(decimal.scale() == scale,
      "Cannot write value as decimal(%s,%s), wrong scale: %s", precision, scale, decimal);
  Preconditions.checkArgument(decimal.precision() <= precision,
      "Cannot write value as decimal(%s,%s), too large: %s", precision, scale, decimal);

  BigDecimal bigDecimal = decimal.toJavaBigDecimal();

  byte fillByte = (byte) (bigDecimal.signum() < 0 ? 0xFF : 0x00);
  byte[] unscaled = bigDecimal.unscaledValue().toByteArray();
  byte[] buf = bytes.get();
  int offset = length - unscaled.length;

  for (int i = 0; i < length; i += 1) {
    if (i < offset) {
      buf[i] = fillByte;
    } else {
      buf[i] = unscaled[i - offset];
    }
  }

  column.writeBinary(repetitionLevel, Binary.fromReusedByteArray(buf));
}

Example 2

Source File: SparkValueWriters.java From iceberg with Apache License 2.0

6 votes

@Override
public void write(Decimal d, Encoder encoder) throws IOException {
  Preconditions.checkArgument(d.scale() == scale,
      "Cannot write value as decimal(%s,%s), wrong scale: %s", precision, scale, d);
  Preconditions.checkArgument(d.precision() <= precision,
      "Cannot write value as decimal(%s,%s), too large: %s", precision, scale, d);

  BigDecimal decimal = d.toJavaBigDecimal();

  byte fillByte = (byte) (decimal.signum() < 0 ? 0xFF : 0x00);
  byte[] unscaled = decimal.unscaledValue().toByteArray();
  byte[] buf = bytes.get();
  int offset = length - unscaled.length;

  for (int i = 0; i < length; i += 1) {
    if (i < offset) {
      buf[i] = fillByte;
    } else {
      buf[i] = unscaled[i - offset];
    }
  }

  encoder.writeFixed(buf);
}

Example 3

Source File: SparkValueWriters.java From iceberg with Apache License 2.0

6 votes

@Override
public void write(Decimal d, Encoder encoder) throws IOException {
  Preconditions.checkArgument(d.scale() == scale,
      "Cannot write value as decimal(%s,%s), wrong scale: %s", precision, scale, d);
  Preconditions.checkArgument(d.precision() <= precision,
      "Cannot write value as decimal(%s,%s), too large: %s", precision, scale, d);

  BigDecimal decimal = d.toJavaBigDecimal();

  byte fillByte = (byte) (decimal.signum() < 0 ? 0xFF : 0x00);
  byte[] unscaled = decimal.unscaledValue().toByteArray();
  byte[] buf = bytes.get();
  int offset = length - unscaled.length;

  for (int i = 0; i < length; i += 1) {
    if (i < offset) {
      buf[i] = fillByte;
    } else {
      buf[i] = unscaled[i - offset];
    }
  }

  encoder.writeFixed(buf);
}