storage-units-jackson/src/main/java/de/xn__ho_hia/storage_unit/jackson/DecimalStorageUnitDeserializer.java

   1 /*
   2  * This file is part of storage-units. It is subject to the license terms in the LICENSE file found in the top-level
   3  * directory of this distribution and at http://creativecommons.org/publicdomain/zero/1.0/. No part of storage-units,
   4  * including this file, may be copied, modified, propagated, or distributed except according to the terms contained
   5  * in the LICENSE file.
   6  */
   7 package de.xn__ho_hia.storage_unit.jackson;
   8
   9 import java.io.IOException;
  10 import java.math.BigInteger;
  11
  12 import com.fasterxml.jackson.core.JsonParser;
  13 import com.fasterxml.jackson.databind.DeserializationContext;
  14 import com.fasterxml.jackson.databind.JsonDeserializer;
  15
  16 import org.eclipse.jdt.annotation.NonNull;
  17
  18 import de.xn__ho_hia.quality.null_analysis.Nullsafe;
  19 import de.xn__ho_hia.storage_unit.StorageUnit;
  20 import de.xn__ho_hia.storage_unit.StorageUnits;
  21
  22 /**
  23  * Deserializes value back into decimal storage units.
  24  */
  25 public final class DecimalStorageUnitDeserializer extends JsonDeserializer<StorageUnit<?>> {
  26
  27     @Override
  28     public StorageUnit<?> deserialize(final JsonParser jsonParser, final DeserializationContext context)
  29             throws IOException {
  30         @NonNull
  31         final BigInteger value = Nullsafe.nonNull(jsonParser.getBigIntegerValue());
  32         return StorageUnits.decimalValueOf(value);
  33     }
  34
  35 }