Github user sounakr commented on a diff in the pull request:
https://github.com/apache/carbondata/pull/1079#discussion_r125191772
--- Diff:
core/src/main/java/org/apache/carbondata/core/util/DataTypeUtil.java ---
@@ -113,6 +115,143 @@ public static Object
getMeasureValueBasedOnDataType(String msrValue, DataType da
}
}
+ public static Object getMeasureObjectFromDataType(byte[] data, DataType
dataType) {
+ ByteBuffer bb = ByteBuffer.wrap(data);
+ switch (dataType) {
+ case SHORT:
+ case INT:
+ case LONG:
+ return bb.getLong();
+ case DECIMAL:
+ return byteToBigDecimal(data);
+ default:
+ return bb.getDouble();
+ }
+ }
+
+ /**
+ * This method will convert a given ByteArray to its specific type
+ *
+ * @param msrValue
+ * @param dataType
+ * @param carbonMeasure
+ * @return
+ */
+ // public static byte[] getMeasureByteArrayBasedOnDataType(String
msrValue, DataType dataType,
+ // CarbonMeasure carbonMeasure) {
+ // switch (dataType) {
+ // case DECIMAL:
+ // BigDecimal bigDecimal =
+ // new
BigDecimal(msrValue).setScale(carbonMeasure.getScale(), RoundingMode.HALF_UP);
+ // return ByteUtil.toBytes(normalizeDecimalValue(bigDecimal,
carbonMeasure.getPrecision()));
+ // case SHORT:
+ // return ByteUtil.toBytes((Short.parseShort(msrValue)));
+ // case INT:
+ // return ByteUtil.toBytes(Integer.parseInt(msrValue));
+ // case LONG:
+ // return ByteUtil.toBytes(Long.valueOf(msrValue));
+ // default:
+ // Double parsedValue = Double.valueOf(msrValue);
+ // if (Double.isInfinite(parsedValue) ||
Double.isNaN(parsedValue)) {
+ // return null;
+ // }
+ // return ByteUtil.toBytes(parsedValue);
+ // }
+ // }
+ public static byte[] getMeasureByteArrayBasedOnDataTypes(String
msrValue, DataType dataType,
+ CarbonMeasure carbonMeasure) {
+ ByteBuffer b;
+ switch (dataType) {
+ case BYTE:
+ case SHORT:
+ case INT:
+ case LONG:
+ b = ByteBuffer.allocate(8);
+ b.putLong(Long.valueOf(msrValue));
+ b.flip();
+ return b.array();
+ case DOUBLE:
+ b = ByteBuffer.allocate(8);
+ b.putDouble(Double.valueOf(msrValue));
+ b.flip();
+ return b.array();
+ case DECIMAL:
+ BigDecimal bigDecimal =
+ new BigDecimal(msrValue).setScale(carbonMeasure.getScale(),
RoundingMode.HALF_UP);
+ return DataTypeUtil
+ .bigDecimalToByte(normalizeDecimalValue(bigDecimal,
carbonMeasure.getPrecision()));
+ default:
+ throw new IllegalArgumentException("Invalid data type: " +
dataType);
+ }
+ }
+
+ /**
+ * This method will convert a given ByteArray to its specific type
+ *
+ * @param msrValue
+ * @param dataType
+ * @param carbonMeasure
+ * @return
+ */
+ public static byte[] getMeasureByteArrayBasedOnDataType(ColumnPage
measurePage, int index,
--- End diff --
Done
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