@Override
public Object parseLiteral(final Object input) throws CoercingParseLiteralException {
  try {
    if (input instanceof IntValue) {
      return ((IntValue) input).getValue().longValue();
    } else if (input instanceof StringValue) {
      final String value = ((StringValue) input).getValue().toLowerCase();
      if (value.startsWith("0x")) {
        return Bytes.fromHexStringLenient(value).toLong();
      } else {
        return Long.parseLong(value);
      }
    }
  } catch (final NumberFormatException e) {
    // fall through
  }
  throw new CoercingParseLiteralException("Value is not any Long : '" + input + "'");
}
 

@Override
public UInt256 parseLiteral(final Object input) throws CoercingParseLiteralException {
  try {
    if (input instanceof StringValue) {
      return UInt256.fromHexString(((StringValue) input).getValue());
    } else if (input instanceof IntValue) {
      return UInt256.valueOf(((IntValue) input).getValue());
    }
  } catch (final IllegalArgumentException e) {
    // fall through
  }
  throw new CoercingParseLiteralException("Value is not any BigInt : '" + input + "'");
}
 

@Nullable
@Override
public Object parseLiteral(Object input) throws CoercingParseLiteralException {
    if (input instanceof NullValue) {
        return null;
    } else if (input instanceof FloatValue) {
        return ((FloatValue) input).getValue();
    } else if (input instanceof StringValue) {
        return ((StringValue) input).getValue();
    } else if (input instanceof IntValue) {
        return ((IntValue) input).getValue();
    } else if (input instanceof BooleanValue) {
        return ((BooleanValue) input).isValue();
    } else if (input instanceof EnumValue) {
        return ((EnumValue) input).getName();
    } else if (input instanceof ArrayValue) {
        return ((ArrayValue) input).getValues()
                .stream()
                .map(this::parseLiteral)
                .collect(Collectors.toList());
    } else if (input instanceof ObjectValue) {
        return ((ObjectValue) input).getObjectFields()
                .stream()
                .collect(Collectors.toMap(ObjectField::getName, f -> parseLiteral(f.getValue())));
    }
    return Assert.assertShouldNeverHappen();
}
 

public static Object parseLiteral(Object input, Map<String, Object> variables) throws CoercingParseLiteralException {
  if (!(input instanceof Value)) {
    log.error("Expected 'Value', got: {}", input);
    throw new CoercingParseLiteralException("Expected 'Value', got: " + input);
  }
  Object result = null;
  if (input instanceof StringValue) {
    result = ((StringValue) input).getValue();
  } else if (input instanceof IntValue) {
    result = ((IntValue) input).getValue();
  } else if (input instanceof FloatValue) {
    result = ((FloatValue) input).getValue();
  } else if (input instanceof BooleanValue) {
    result = ((BooleanValue) input).isValue();
  } else if (input instanceof EnumValue) {
    result = ((EnumValue) input).getName();
  } else if (input instanceof VariableReference) {
    result = variables.get(((VariableReference) input).getName());
  } else if (input instanceof ArrayValue) {
    result = ((ArrayValue) input).getValues().stream()
        .map(v -> parseLiteral(v, variables))
        .collect(toList());
  } else if (input instanceof ObjectValue) {
    result = ((ObjectValue) input).getObjectFields().stream()
        .collect(toMap(ObjectField::getName, f -> parseLiteral(f.getValue(), variables)));
  }
  return result;
}
 

@Override
public JsonElement parseLiteral(Object input) {
    if (input instanceof ObjectValue || input instanceof ArrayValue) {
        throw literalParsingException(input, StringValue.class, BooleanValue.class, EnumValue.class,
                FloatValue.class, IntValue.class, NullValue.class);
    }
    return parseJsonValue(((Value) input));
}
 

private static JsonElement parseJsonValue(Value value) {
    if (value instanceof BooleanValue) {
        return new JsonPrimitive(((BooleanValue) value).isValue());
    }
    if (value instanceof EnumValue) {
        return new JsonPrimitive(((EnumValue) value).getName());
    }
    if (value instanceof FloatValue) {
        return new JsonPrimitive(((FloatValue) value).getValue());
    }
    if (value instanceof IntValue) {
        return new JsonPrimitive(((IntValue) value).getValue());
    }
    if (value instanceof NullValue) {
        return JsonNull.INSTANCE;
    }
    if (value instanceof StringValue) {
        return new JsonPrimitive(((StringValue) value).getValue());
    }
    if (value instanceof ArrayValue) {
        List<Value> values = ((ArrayValue) value).getValues();
        JsonArray jsonArray = new JsonArray(values.size());
        values.forEach(v -> jsonArray.add(parseJsonValue(v)));
        return jsonArray;
    }
    if (value instanceof ObjectValue) {
        final JsonObject result = new JsonObject();
        ((ObjectValue) value).getObjectFields().forEach(objectField ->
                result.add(objectField.getName(), parseJsonValue(objectField.getValue())));
        return result;
    }
    //Should never happen, as it would mean the variable was not replaced by the parser
    throw new CoercingParseLiteralException("Unknown scalar AST type: " + value.getClass().getName());
}
 

private static JsonNode parseJsonValue(Value value, Map<String, Object> variables) {
    if (value instanceof BooleanValue) {
        return JsonNodeFactory.instance.booleanNode(((BooleanValue) value).isValue());
    }
    if (value instanceof EnumValue) {
        return JsonNodeFactory.instance.textNode(((EnumValue) value).getName());
    }
    if (value instanceof FloatValue) {
        return JsonNodeFactory.instance.numberNode(((FloatValue) value).getValue());
    }
    if (value instanceof IntValue) {
        return JsonNodeFactory.instance.numberNode(((IntValue) value).getValue());
    }
    if (value instanceof NullValue) {
        return JsonNodeFactory.instance.nullNode();
    }
    if (value instanceof StringValue) {
        return JsonNodeFactory.instance.textNode(((StringValue) value).getValue());
    }
    if (value instanceof ArrayValue) {
        List<Value> values = ((ArrayValue) value).getValues();
        ArrayNode jsonArray = JsonNodeFactory.instance.arrayNode(values.size());
        values.forEach(v -> jsonArray.add(parseJsonValue(v, variables)));
        return jsonArray;
    }
    if (value instanceof VariableReference) {
        return OBJECT_MAPPER.convertValue(variables.get(((VariableReference) value).getName()), JsonNode.class);
    }
    if (value instanceof ObjectValue) {
        final ObjectNode result = JsonNodeFactory.instance.objectNode();
        ((ObjectValue) value).getObjectFields().forEach(objectField ->
                result.set(objectField.getName(), parseJsonValue(objectField.getValue(), variables)));
        return result;
    }
    //Should never happen
    throw new CoercingParseLiteralException("Unknown scalar AST type: " + value.getClass().getName());
}
 

@Override
public DecimalNode parseLiteral(Object input) {
    if (input instanceof IntValue) {
        return (DecimalNode) JsonNodeFactory.instance.numberNode(((IntValue) input).getValue());
    } else if (input instanceof FloatValue) {
        return (DecimalNode) JsonNodeFactory.instance.numberNode(((FloatValue) input).getValue());
    } else {
        throw new CoercingParseLiteralException(errorMessage(input, IntValue.class, FloatValue.class));
    }
}
 

@Override
public IntNode parseLiteral(Object input) {
    if (input instanceof IntValue) {
        try {
            return IntNode.valueOf(((IntValue) input).getValue().intValueExact());
        } catch (ArithmeticException e) {
            throw new CoercingParseLiteralException(input + " does not fit into an int without a loss of precision");
        }
    } else {
        throw new CoercingParseLiteralException(errorMessage(input, IntValue.class));
    }
}
 

@Override
public BigIntegerNode parseLiteral(Object input) {
    if (input instanceof IntValue) {
        return BigIntegerNode.valueOf(((IntValue) input).getValue());
    } else {
        throw new CoercingParseLiteralException(errorMessage(input, IntValue.class));
    }
}
 

@Override
public ShortNode parseLiteral(Object input) {
    if (input instanceof IntValue) {
        try {
            return ShortNode.valueOf(((IntValue) input).getValue().shortValueExact());
        } catch (ArithmeticException e) {
            throw new CoercingParseLiteralException(input + " does not fit into a short without a loss of precision");
        }
    } else {
        throw new CoercingParseLiteralException(errorMessage(input, IntValue.class));
    }
}
 

@Override
public FloatNode parseLiteral(Object input) {
    if (input instanceof IntValue) {
        return FloatNode.valueOf(((IntValue) input).getValue().floatValue());
    } if (input instanceof FloatValue) {
        return FloatNode.valueOf(((FloatValue) input).getValue().floatValue());
    } else {
        throw new CoercingParseLiteralException(errorMessage(input, IntValue.class, FloatValue.class));
    }
}
 

@Override
public DoubleNode parseLiteral(Object input) {
    if (input instanceof IntValue) {
        return DoubleNode.valueOf(((IntValue) input).getValue().doubleValue());
    } if (input instanceof FloatValue) {
        return DoubleNode.valueOf(((FloatValue) input).getValue().doubleValue());
    } else {
        throw new CoercingParseLiteralException(errorMessage(input, IntValue.class, FloatValue.class));
    }
}
 

private void testEpochMilliTemporal(Class type, Coercing coercing, String expected, long literal) {
    Object parsed = coercing.parseLiteral(new IntValue(new BigInteger(Long.toString(literal))));
    assertTrue(type.isInstance(parsed));
    assertEquals(expected, coercing.serialize(parsed));
    
    parsed = coercing.parseValue(literal);
    assertTrue(type.isInstance(parsed));
    assertEquals(expected, coercing.serialize(parsed));
}
 

private PageInformation extractPageInformation(DataFetchingEnvironment environment, Field field) {
    Optional<Argument> paginationRequest = field.getArguments().stream().filter(it -> GraphQLSchemaBuilder.PAGINATION_REQUEST_PARAM_NAME.equals(it.getName())).findFirst();
    if (paginationRequest.isPresent()) {
        field.getArguments().remove(paginationRequest.get());

        ObjectValue paginationValues = (ObjectValue) paginationRequest.get().getValue();
        IntValue page = (IntValue) paginationValues.getObjectFields().stream().filter(it -> "page".equals(it.getName())).findFirst().get().getValue();
        IntValue size = (IntValue) paginationValues.getObjectFields().stream().filter(it -> "size".equals(it.getName())).findFirst().get().getValue();

        return new PageInformation(page.getValue().intValue(), size.getValue().intValue());
    }

    return new PageInformation(1, Integer.MAX_VALUE);
}
 

@Override
public Object parseLiteral(Object input) {
    if (input instanceof StringValue) {
        return parseStringToLocalDateTime(((StringValue) input).getValue());
    } else if (input instanceof IntValue) {
        BigInteger value = ((IntValue) input).getValue();
        return parseLongToLocalDateTime(value.longValue());
    }
    return null;
}
 

@Override
public Instant parseLiteral(Object input) {
    if (input instanceof IntValue) {
        return Instant.ofEpochSecond(((IntValue) input).getValue().longValue());
    }
    return null;
}
 

@Override
public Object parseLiteral(Object input) {
    if (input instanceof StringValue) {
        return parseStringToLocalDate(((StringValue) input).getValue());
    } else if (input instanceof IntValue) {
        BigInteger value = ((IntValue) input).getValue();
        return parseLongToLocalDate(value.longValue());
    }
    return null;
}
 

@Override
public Object parseLiteral(Object input) {
    if (input instanceof StringValue) {
        return parseStringToDate(((StringValue) input).getValue());
    } else if (input instanceof IntValue) {
        BigInteger value = ((IntValue) input).getValue();
        return new Date(value.longValue());
    }
    return null;
}
 

private int getArgumentsValue(List<Argument> argumentList) {
    int argumentValue = 0;
    if (argumentList.size() > 0) {
        for (Argument object : argumentList) {
            BigInteger value = ((IntValue) object.getValue()).getValue();
            int val = value.intValue();
            argumentValue = argumentValue + val;
        }
    } else {
        argumentValue = 1;
    }
    return argumentValue;
}
 

/**
 * Extracts a scalar value, this is needed because of GraphQL strict types
 */
protected Object getRealValue(Value value, DataFetchingEnvironment env) {
    if (value instanceof BooleanValue) {
        return ((BooleanValue)value).isValue();
    } else if (value instanceof FloatValue) {
        return ((FloatValue) value).getValue();
    } else if (value instanceof IntValue) {
        return ((IntValue) value).getValue();
    } else if (value instanceof StringValue) {
        return ((StringValue) value).getValue();
    } else if (value instanceof VariableReference) {
        return env.getVariables().get(((VariableReference) value).getName());
    }
    return null;
}
 

@Test
public void intValue() {
  Value value = IntValue.newIntValue(new BigInteger("1")).build();
  Object result = JsonCoercingUtil.parseLiteral(value, emptyMap());
  assertThat(result, is(new BigInteger("1")));
}