Package com.dslplatform.json

Class NumberConverter

java.lang.Object

com.dslplatform.json.NumberConverter

public abstract class NumberConverter
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
(package private) static class	NumberConverter.NumberInfo

Field Summary

Fields

Modifier and Type	Field	Description
private static final BigDecimal	BD_MAX_LONG
private static final BigDecimal	BD_MIN_LONG
static final JsonReader.ReadObject<BigDecimal>	DECIMAL_READER
static final JsonWriter.WriteObject<BigDecimal>	DECIMAL_WRITER
private static final int[]	DIFF
private static final int[]	DIGITS
static final JsonReader.ReadObject<double[]>	DOUBLE_ARRAY_READER
static final JsonWriter.WriteObject<double[]>	DOUBLE_ARRAY_WRITER
static final double[]	DOUBLE_EMPTY_ARRAY
static final JsonReader.ReadObject<Double>	DOUBLE_READER
static final JsonWriter.WriteObject<Double>	DOUBLE_WRITER
static final Double	DOUBLE_ZERO
private static final int[]	ERROR
static final JsonReader.ReadObject<float[]>	FLOAT_ARRAY_READER
static final JsonWriter.WriteObject<float[]>	FLOAT_ARRAY_WRITER
static final float[]	FLOAT_EMPTY_ARRAY
static final JsonReader.ReadObject<Float>	FLOAT_READER
static final JsonWriter.WriteObject<Float>	FLOAT_WRITER
static final Float	FLOAT_ZERO
static final JsonReader.ReadObject<int[]>	INT_ARRAY_READER
static final JsonWriter.WriteObject<int[]>	INT_ARRAY_WRITER
static final int[]	INT_EMPTY_ARRAY
static final JsonReader.ReadObject<Integer>	INT_READER
static final JsonWriter.WriteObject<Integer>	INT_WRITER
static final Integer	INT_ZERO
static final JsonReader.ReadObject<long[]>	LONG_ARRAY_READER
static final JsonWriter.WriteObject<long[]>	LONG_ARRAY_WRITER
static final long[]	LONG_EMPTY_ARRAY
static final JsonReader.ReadObject<Long>	LONG_READER
static final JsonWriter.WriteObject<Long>	LONG_WRITER
static final Long	LONG_ZERO
private static final byte[]	MIN_INT
private static final byte[]	MIN_LONG
private static final byte	MINUS
static final JsonReader.ReadObject<Double>	NULLABLE_DOUBLE_READER
static final JsonReader.ReadObject<Float>	NULLABLE_FLOAT_READER
static final JsonReader.ReadObject<Integer>	NULLABLE_INT_READER
static final JsonReader.ReadObject<Long>	NULLABLE_LONG_READER
static final JsonReader.ReadObject<Short>	NULLABLE_SHORT_READER
private static final double[]	POW_10
private static final int[]	SCALE_10
static final JsonReader.ReadObject<short[]>	SHORT_ARRAY_READER
static final JsonWriter.WriteObject<short[]>	SHORT_ARRAY_WRITER
static final short[]	SHORT_EMPTY_ARRAY
static final JsonReader.ReadObject<Short>	SHORT_READER
static final JsonWriter.WriteObject<Short>	SHORT_WRITER
static final Short	SHORT_ZERO

Constructor Summary

Constructors

Constructor	Description
NumberConverter()

Method Summary

Modifier and Type	Method	Description
private static double	approximateDouble(int decimals, double precise, int digits)
private static Number	bigDecimalOrDouble(BigDecimal num, JsonReader.UnknownNumberParsing unknownNumbers)
static BigInteger	deserializeBigInteger(JsonReader reader)
static BigDecimal	deserializeDecimal(JsonReader reader)
static ArrayList<BigDecimal>	deserializeDecimalCollection(JsonReader reader)
static void	deserializeDecimalCollection(JsonReader reader, Collection<BigDecimal> res)
static ArrayList<BigDecimal>	deserializeDecimalNullableCollection(JsonReader reader)
static void	deserializeDecimalNullableCollection(JsonReader reader, Collection<BigDecimal> res)
static double	deserializeDouble(JsonReader reader)
static double[]	deserializeDoubleArray(JsonReader reader)
static ArrayList<Double>	deserializeDoubleCollection(JsonReader reader)
static void	deserializeDoubleCollection(JsonReader reader, Collection<Double> res)
static ArrayList<Double>	deserializeDoubleNullableCollection(JsonReader reader)
static void	deserializeDoubleNullableCollection(JsonReader reader, Collection<Double> res)
static float	deserializeFloat(JsonReader reader)
static float[]	deserializeFloatArray(JsonReader reader)
static ArrayList<Float>	deserializeFloatCollection(JsonReader reader)
static void	deserializeFloatCollection(JsonReader reader, Collection<Float> res)
static ArrayList<Float>	deserializeFloatNullableCollection(JsonReader reader)
static void	deserializeFloatNullableCollection(JsonReader reader, Collection<Float> res)
static int	deserializeInt(JsonReader reader)
static int[]	deserializeIntArray(JsonReader reader)
static ArrayList<Integer>	deserializeIntCollection(JsonReader reader)
static void	deserializeIntCollection(JsonReader reader, Collection<Integer> res)
static ArrayList<Integer>	deserializeIntNullableCollection(JsonReader reader)
static void	deserializeIntNullableCollection(JsonReader reader, Collection<Integer> res)
static long	deserializeLong(JsonReader reader)
static long[]	deserializeLongArray(JsonReader reader)
static ArrayList<Long>	deserializeLongCollection(JsonReader reader)
static void	deserializeLongCollection(JsonReader reader, Collection<Long> res)
static ArrayList<Long>	deserializeLongNullableCollection(JsonReader reader)
static void	deserializeLongNullableCollection(JsonReader reader, Collection<Long> res)
static Number	deserializeNumber(JsonReader reader)
static short	deserializeShort(JsonReader reader)
static short[]	deserializeShortArray(JsonReader reader)
static void	deserializeShortCollection(JsonReader reader, Collection<Short> res)
static ArrayList<Short>	deserializeShortNullableCollection(JsonReader reader)
static void	deserializeShortNullableCollection(JsonReader reader, Collection<Short> res)
private static double	doubleExponent(JsonReader reader, long whole, int decimals, double fraction, byte[] buf, int start, int end, int offset, int i)
private static float	floatExponent(JsonReader reader, long whole, int decimals, byte[] buf, int end, int i)
(package private) static void	numberException(JsonReader reader, int start, int end, String message)
(package private) static void	numberException(JsonReader reader, int start, int end, String message, Object messageArgument)
private static BigDecimal	parseBigDecimalGeneric(char[] buf, int len, JsonReader reader, boolean withQuotes)
private static BigInteger	parseBigIntegerGeneric(char[] buf, int len, JsonReader reader, boolean withQuotes)
private static double	parseDouble(byte[] buf, JsonReader reader, int start, int end, int offset)
private static double	parseDoubleGeneric(char[] buf, int len, JsonReader reader, boolean withQuotes)
private static float	parseFloat(byte[] buf, JsonReader reader, int start, int end, int offset)
private static float	parseFloatGeneric(char[] buf, int len, JsonReader reader, boolean withQuotes)
private static long	parseLongGeneric(JsonReader reader, int start, int end)
private static BigDecimal	parseNegativeDecimal(byte[] buf, JsonReader reader, int start, int end)
private static int	parseNegativeInt(byte[] buf, JsonReader reader, int start, int end)
private static Number	parseNegativeNumber(byte[] buf, JsonReader reader, int start, int end)
private static int	parseNumberGeneric(char[] buf, int len, JsonReader reader, boolean withQuotes)
private static BigDecimal	parsePositiveDecimal(byte[] buf, JsonReader reader, int start, int end)
private static int	parsePositiveInt(byte[] buf, JsonReader reader, int start, int end, int offset)
private static Number	parsePositiveNumber(byte[] buf, JsonReader reader, int start, int end)
(package private) static int	read2(char[] buf, int pos)
(package private) static int	read4(char[] buf, int pos)
(package private) static NumberConverter.NumberInfo	readLongNumber(JsonReader reader, int start)
(package private) static <T> void	registerDefault(DslJson<T> json)
private static int	serialize(byte[] buf, int pos, int value)
private static int	serialize(byte[] buf, int pos, long value)
static void	serialize(double[] value, JsonWriter sw)
static void	serialize(double value, JsonWriter sw)
static void	serialize(float[] value, JsonWriter sw)
static void	serialize(float value, JsonWriter sw)
static void	serialize(int[] values, JsonWriter sw)
static void	serialize(int value, JsonWriter sw)
static void	serialize(long[] values, JsonWriter sw)
static void	serialize(long value, JsonWriter sw)
static void	serialize(short[] value, JsonWriter sw)
static void	serialize(BigDecimal value, JsonWriter sw)
static void	serialize(BigInteger value, JsonWriter sw)
static void	serializeNullable(Double value, JsonWriter sw)
static void	serializeNullable(Float value, JsonWriter sw)
static void	serializeNullable(Integer value, JsonWriter sw)
static void	serializeNullable(Long value, JsonWriter sw)
static void	serializeNullable(BigDecimal value, JsonWriter sw)
private static Number	tryLongFromBigDecimal(char[] buf, int len, JsonReader reader)
(package private) static void	write2(int value, byte[] buf, int pos)
(package private) static void	write3(int number, byte[] buf, int pos)
(package private) static void	write4(int value, byte[] buf, int pos)
private static void	writeBuf(byte[] buf, int v, int pos)
private static int	writeFirstBuf(byte[] buf, int v, int pos)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

SHORT_EMPTY_ARRAY

public static final short[] SHORT_EMPTY_ARRAY

INT_EMPTY_ARRAY

public static final int[] INT_EMPTY_ARRAY

LONG_EMPTY_ARRAY

public static final long[] LONG_EMPTY_ARRAY

FLOAT_EMPTY_ARRAY

public static final float[] FLOAT_EMPTY_ARRAY

DOUBLE_EMPTY_ARRAY

public static final double[] DOUBLE_EMPTY_ARRAY

SHORT_ZERO

public static final Short SHORT_ZERO

INT_ZERO

public static final Integer INT_ZERO

LONG_ZERO

public static final Long LONG_ZERO

FLOAT_ZERO

public static final Float FLOAT_ZERO

DOUBLE_ZERO

public static final Double DOUBLE_ZERO

DIGITS

private static final int[] DIGITS

DIFF

private static final int[] DIFF

ERROR

private static final int[] ERROR

SCALE_10

private static final int[] SCALE_10

POW_10

private static final double[] POW_10

DOUBLE_READER

public static final JsonReader.ReadObject<Double> DOUBLE_READER

NULLABLE_DOUBLE_READER

public static final JsonReader.ReadObject<Double> NULLABLE_DOUBLE_READER

DOUBLE_WRITER

public static final JsonWriter.WriteObject<Double> DOUBLE_WRITER

DOUBLE_ARRAY_READER

public static final JsonReader.ReadObject<double[]> DOUBLE_ARRAY_READER

DOUBLE_ARRAY_WRITER

public static final JsonWriter.WriteObject<double[]> DOUBLE_ARRAY_WRITER

FLOAT_READER

public static final JsonReader.ReadObject<Float> FLOAT_READER

NULLABLE_FLOAT_READER

public static final JsonReader.ReadObject<Float> NULLABLE_FLOAT_READER

FLOAT_WRITER

public static final JsonWriter.WriteObject<Float> FLOAT_WRITER

FLOAT_ARRAY_READER

public static final JsonReader.ReadObject<float[]> FLOAT_ARRAY_READER

FLOAT_ARRAY_WRITER

public static final JsonWriter.WriteObject<float[]> FLOAT_ARRAY_WRITER

INT_READER

public static final JsonReader.ReadObject<Integer> INT_READER

NULLABLE_INT_READER

public static final JsonReader.ReadObject<Integer> NULLABLE_INT_READER

INT_WRITER

public static final JsonWriter.WriteObject<Integer> INT_WRITER

INT_ARRAY_READER

public static final JsonReader.ReadObject<int[]> INT_ARRAY_READER

INT_ARRAY_WRITER

public static final JsonWriter.WriteObject<int[]> INT_ARRAY_WRITER

SHORT_READER

public static final JsonReader.ReadObject<Short> SHORT_READER

NULLABLE_SHORT_READER

public static final JsonReader.ReadObject<Short> NULLABLE_SHORT_READER

SHORT_WRITER

public static final JsonWriter.WriteObject<Short> SHORT_WRITER

SHORT_ARRAY_READER

public static final JsonReader.ReadObject<short[]> SHORT_ARRAY_READER

SHORT_ARRAY_WRITER

public static final JsonWriter.WriteObject<short[]> SHORT_ARRAY_WRITER

LONG_READER

public static final JsonReader.ReadObject<Long> LONG_READER

NULLABLE_LONG_READER

public static final JsonReader.ReadObject<Long> NULLABLE_LONG_READER

LONG_WRITER

public static final JsonWriter.WriteObject<Long> LONG_WRITER

LONG_ARRAY_READER

public static final JsonReader.ReadObject<long[]> LONG_ARRAY_READER

LONG_ARRAY_WRITER

public static final JsonWriter.WriteObject<long[]> LONG_ARRAY_WRITER

DECIMAL_READER

public static final JsonReader.ReadObject<BigDecimal> DECIMAL_READER

DECIMAL_WRITER

public static final JsonWriter.WriteObject<BigDecimal> DECIMAL_WRITER

MINUS

private static final byte MINUS

See Also:

• Constant Field Values

MIN_INT

private static final byte[] MIN_INT

MIN_LONG

private static final byte[] MIN_LONG

BD_MAX_LONG

private static final BigDecimal BD_MAX_LONG

BD_MIN_LONG

private static final BigDecimal BD_MIN_LONG

Constructor Details

NumberConverter

public NumberConverter()

Method Details

registerDefault

static <T> void registerDefault(DslJson<T> json)

write4

static void write4(int value,
 byte[] buf,
 int pos)

write3

static void write3(int number,
 byte[] buf,
 int pos)

write2

static void write2(int value,
 byte[] buf,
 int pos)

read2

static int read2(char[] buf,
 int pos)

read4

static int read4(char[] buf,
 int pos)

numberException

static void numberException(JsonReader reader,
 int start,
 int end,
 String message)
                     throws ParsingException

Throws:

ParsingException

numberException

static void numberException(JsonReader reader,
 int start,
 int end,
 String message,
 Object messageArgument)
                     throws ParsingException

Throws:

ParsingException

serializeNullable

public static void serializeNullable(@Nullable
 Double value,
 JsonWriter sw)

parseNumberGeneric

private static int parseNumberGeneric(char[] buf,
 int len,
 JsonReader reader,
 boolean withQuotes)
                               throws ParsingException

Throws:

ParsingException

parseBigDecimalGeneric

private static BigDecimal parseBigDecimalGeneric(char[] buf,
 int len,
 JsonReader reader,
 boolean withQuotes)
                                          throws ParsingException

Throws:

ParsingException

parseBigIntegerGeneric

private static BigInteger parseBigIntegerGeneric(char[] buf,
 int len,
 JsonReader reader,
 boolean withQuotes)
                                          throws ParsingException

Throws:

ParsingException

serialize

public static void serialize(double value,
 JsonWriter sw)

serialize

public static void serialize(@Nullable
 double[] value,
 JsonWriter sw)

readLongNumber

static NumberConverter.NumberInfo readLongNumber(JsonReader reader,
 int start)
                                          throws IOException

Throws:

IOException

deserializeDouble

public static double deserializeDouble(JsonReader reader)
                                throws IOException

Throws:

IOException

parseDouble

private static double parseDouble(byte[] buf,
 JsonReader reader,
 int start,
 int end,
 int offset)
                           throws IOException

Throws:

IOException

approximateDouble

private static double approximateDouble(int decimals,
 double precise,
 int digits)

doubleExponent

private static double doubleExponent(JsonReader reader,
 long whole,
 int decimals,
 double fraction,
 byte[] buf,
 int start,
 int end,
 int offset,
 int i)
                              throws IOException

Throws:

IOException

parseDoubleGeneric

private static double parseDoubleGeneric(char[] buf,
 int len,
 JsonReader reader,
 boolean withQuotes)
                                  throws IOException

Throws:

IOException

deserializeDoubleCollection

public static ArrayList<Double> deserializeDoubleCollection(JsonReader reader)
                                                     throws IOException

Throws:

IOException

deserializeDoubleCollection

public static void deserializeDoubleCollection(JsonReader reader,
 Collection<Double> res)
                                        throws IOException

Throws:

IOException

deserializeDoubleNullableCollection

public static ArrayList<Double> deserializeDoubleNullableCollection(JsonReader reader)
                                                             throws IOException

Throws:

IOException

deserializeDoubleNullableCollection

public static void deserializeDoubleNullableCollection(JsonReader reader,
 Collection<Double> res)
                                                throws IOException

Throws:

IOException

serializeNullable

public static void serializeNullable(@Nullable
 Float value,
 JsonWriter sw)

serialize

public static void serialize(float value,
 JsonWriter sw)

serialize

public static void serialize(@Nullable
 float[] value,
 JsonWriter sw)

deserializeFloat

public static float deserializeFloat(JsonReader reader)
                              throws IOException

Throws:

IOException

parseFloat

private static float parseFloat(byte[] buf,
 JsonReader reader,
 int start,
 int end,
 int offset)
                         throws IOException

Throws:

IOException

floatExponent

private static float floatExponent(JsonReader reader,
 long whole,
 int decimals,
 byte[] buf,
 int end,
 int i)
                            throws IOException

Throws:

IOException

parseFloatGeneric

private static float parseFloatGeneric(char[] buf,
 int len,
 JsonReader reader,
 boolean withQuotes)
                                throws ParsingException

Throws:

ParsingException

deserializeFloatCollection

public static ArrayList<Float> deserializeFloatCollection(JsonReader reader)
                                                   throws IOException

Throws:

IOException

deserializeFloatCollection

public static void deserializeFloatCollection(JsonReader reader,
 Collection<Float> res)
                                       throws IOException

Throws:

IOException

deserializeFloatNullableCollection

public static ArrayList<Float> deserializeFloatNullableCollection(JsonReader reader)
                                                           throws IOException

Throws:

IOException

deserializeFloatNullableCollection

public static void deserializeFloatNullableCollection(JsonReader reader,
 Collection<Float> res)
                                               throws IOException

Throws:

IOException

serializeNullable

public static void serializeNullable(@Nullable
 Integer value,
 JsonWriter sw)

serialize

public static void serialize(int value,
 JsonWriter sw)

serialize

private static int serialize(byte[] buf,
 int pos,
 int value)

serialize

public static void serialize(@Nullable
 int[] values,
 JsonWriter sw)

serialize

public static void serialize(@Nullable
 short[] value,
 JsonWriter sw)

deserializeShort

public static short deserializeShort(JsonReader reader)
                              throws IOException

Throws:

IOException

deserializeInt

public static int deserializeInt(JsonReader reader)
                          throws IOException

Throws:

IOException

parsePositiveInt

private static int parsePositiveInt(byte[] buf,
 JsonReader reader,
 int start,
 int end,
 int offset)
                             throws IOException

Throws:

IOException

parseNegativeInt

private static int parseNegativeInt(byte[] buf,
 JsonReader reader,
 int start,
 int end)
                             throws IOException

Throws:

IOException

deserializeIntCollection

public static ArrayList<Integer> deserializeIntCollection(JsonReader reader)
                                                   throws IOException

Throws:

IOException

deserializeIntArray

public static int[] deserializeIntArray(JsonReader reader)
                                 throws IOException

Throws:

IOException

deserializeShortArray

public static short[] deserializeShortArray(JsonReader reader)
                                     throws IOException

Throws:

IOException

deserializeLongArray

public static long[] deserializeLongArray(JsonReader reader)
                                   throws IOException

Throws:

IOException

deserializeFloatArray

public static float[] deserializeFloatArray(JsonReader reader)
                                     throws IOException

Throws:

IOException

deserializeDoubleArray

public static double[] deserializeDoubleArray(JsonReader reader)
                                       throws IOException

Throws:

IOException

deserializeShortCollection

public static void deserializeShortCollection(JsonReader reader,
 Collection<Short> res)
                                       throws IOException

Throws:

IOException

deserializeShortNullableCollection

public static ArrayList<Short> deserializeShortNullableCollection(JsonReader reader)
                                                           throws IOException

Throws:

IOException

deserializeShortNullableCollection

public static void deserializeShortNullableCollection(JsonReader reader,
 Collection<Short> res)
                                               throws IOException

Throws:

IOException

deserializeIntCollection

public static void deserializeIntCollection(JsonReader reader,
 Collection<Integer> res)
                                     throws IOException

Throws:

IOException

deserializeIntNullableCollection

public static ArrayList<Integer> deserializeIntNullableCollection(JsonReader reader)
                                                           throws IOException

Throws:

IOException

deserializeIntNullableCollection

public static void deserializeIntNullableCollection(JsonReader reader,
 Collection<Integer> res)
                                             throws IOException

Throws:

IOException

serializeNullable

public static void serializeNullable(@Nullable
 Long value,
 JsonWriter sw)

writeFirstBuf

private static int writeFirstBuf(byte[] buf,
 int v,
 int pos)

writeBuf

private static void writeBuf(byte[] buf,
 int v,
 int pos)

serialize

public static void serialize(long value,
 JsonWriter sw)

serialize

private static int serialize(byte[] buf,
 int pos,
 long value)

serialize

public static void serialize(@Nullable
 long[] values,
 JsonWriter sw)

deserializeLong

public static long deserializeLong(JsonReader reader)
                            throws IOException

Throws:

IOException

parseLongGeneric

private static long parseLongGeneric(JsonReader reader,
 int start,
 int end)
                              throws IOException

Throws:

IOException

deserializeLongCollection

public static ArrayList<Long> deserializeLongCollection(JsonReader reader)
                                                 throws IOException

Throws:

IOException

deserializeLongCollection

public static void deserializeLongCollection(JsonReader reader,
 Collection<Long> res)
                                      throws IOException

Throws:

IOException

deserializeLongNullableCollection

public static ArrayList<Long> deserializeLongNullableCollection(JsonReader reader)
                                                         throws IOException

Throws:

IOException

deserializeLongNullableCollection

public static void deserializeLongNullableCollection(JsonReader reader,
 Collection<Long> res)
                                              throws IOException

Throws:

IOException

serializeNullable

public static void serializeNullable(@Nullable
 BigDecimal value,
 JsonWriter sw)

serialize

public static void serialize(BigDecimal value,
 JsonWriter sw)

deserializeDecimal

public static BigDecimal deserializeDecimal(JsonReader reader)
                                     throws IOException

Throws:

IOException

parsePositiveDecimal

private static BigDecimal parsePositiveDecimal(byte[] buf,
 JsonReader reader,
 int start,
 int end)
                                        throws IOException

Throws:

IOException

parseNegativeDecimal

private static BigDecimal parseNegativeDecimal(byte[] buf,
 JsonReader reader,
 int start,
 int end)
                                        throws IOException

Throws:

IOException

serialize

public static void serialize(@Nullable
 BigInteger value,
 JsonWriter sw)

deserializeBigInteger

public static BigInteger deserializeBigInteger(JsonReader reader)
                                        throws IOException

Throws:

IOException

bigDecimalOrDouble

private static Number bigDecimalOrDouble(BigDecimal num,
 JsonReader.UnknownNumberParsing unknownNumbers)

tryLongFromBigDecimal

private static Number tryLongFromBigDecimal(char[] buf,
 int len,
 JsonReader reader)
                                     throws IOException

Throws:

IOException

deserializeNumber

public static Number deserializeNumber(JsonReader reader)
                                throws IOException

Throws:

IOException

parsePositiveNumber

private static Number parsePositiveNumber(byte[] buf,
 JsonReader reader,
 int start,
 int end)
                                   throws IOException

Throws:

IOException

parseNegativeNumber

private static Number parseNegativeNumber(byte[] buf,
 JsonReader reader,
 int start,
 int end)
                                   throws IOException

Throws:

IOException

deserializeDecimalCollection

public static ArrayList<BigDecimal> deserializeDecimalCollection(JsonReader reader)
                                                          throws IOException

Throws:

IOException

deserializeDecimalCollection

public static void deserializeDecimalCollection(JsonReader reader,
 Collection<BigDecimal> res)
                                         throws IOException

Throws:

IOException

deserializeDecimalNullableCollection

public static ArrayList<BigDecimal> deserializeDecimalNullableCollection(JsonReader reader)
                                                                  throws IOException

Throws:

IOException

deserializeDecimalNullableCollection

public static void deserializeDecimalNullableCollection(JsonReader reader,
 Collection<BigDecimal> res)
                                                 throws IOException

Throws:

IOException