Modifier and Type	Class and Description
public static class	ByteUtil.ByteStream Utility byte stream similar to ByteArrayOutputStream but with extended accessibility to the bytes.

Modifier and Type	Field and Description
private static final String[]	HEX_CHARS
private static final int	NUM_BYTES_PER_BLOCK
private static final int	NUM_BYTES_PER_LINE

Access	Constructor and Description
private	ByteUtil()

Method Summary

Modifier and Type	Method and Description
public static int	Returns: the byte value converted to an unsigned int value asUnsignedByte(byte b) Returns the byte value converted to an unsigned int value.
public static int	Returns: the short value converted to an unsigned int value asUnsignedShort(short s) Returns the short value converted to an unsigned int value.
public static void	clearRange(ByteBuffer buffer, int start, int end) Sets all bits in the given byte range to 0.
public static void	clearRemaining(ByteBuffer buffer) Sets all bits in the given remaining byte range to 0.
public static void	closeQuietly(Closeable c) Closes the given `Closeable` if non-null swallowing any `IOException`.
public static byte[]	concat(byte[] b1, byte[] b2) Concatenates and returns the given byte arrays.
public static void	copy(InputStream in, OutputStream out) Copies the given InputStream to the given OutputStream.
public static byte[]	copyOf(byte[] arr, int newLength) Returns a copy of the given array of the given length.
public static byte[]	copyOf(byte[] arr, int offset, int newLength) Returns a copy of the given array of the given length starting at the given position.
public static byte[]	copyOf(byte[] arr, int offset, int newLength, int dstOffset) Returns a copy of the given array of the given length starting at the given position.
public static void	fillRange(ByteBuffer buffer, int start, int end) Sets all bits in the given byte range to 1.
public static int	Returns: the offset of the pattern if a match is found, -1 otherwise findRange(ByteBuffer buffer, int start, byte[] pattern) Searches for a pattern of bytes in the given buffer starting at the given offset.
public static int	Returns: the new buffer position forward(ByteBuffer buffer, int count) Moves the position of the given buffer the given count from the current position.
public static int	Returns: The int get3ByteInt(ByteBuffer Buffer containing the bytes buffer) Read a 3 byte int from a buffer
public static int	Returns: The int get3ByteInt(ByteBuffer Buffer containing the bytes buffer, ByteOrder the order of the bytes of the int order) Read a 3 byte int from a buffer
public static int	Returns: The int get3ByteInt(ByteBuffer Buffer containing the bytes buffer, int Offset at which to start reading the int offset) Read a 3 byte int from a buffer
public static int	Returns: The int get3ByteInt(ByteBuffer Buffer containing the bytes buffer, int Offset at which to start reading the int offset, ByteOrder the order of the bytes of the int order) Read a 3 byte int from a buffer
public static byte[]	Returns: a new buffer with the given number of bytes from the current position in the given buffer getBytes(ByteBuffer Buffer containing the desired bytes buffer, int length of the desired bytes len) Reads an array of bytes from the given buffer
public static byte[]	Returns: a new buffer with the given number of bytes from the given position in the given buffer getBytes(ByteBuffer Buffer containing the desired bytes buffer, int Offset at which to read the bytes offset, int length of the desired bytes len) Reads an array of bytes from the given buffer at the given offset
public static int	Returns: an int from the current position in the given buffer, read using the given ByteOrder getInt(ByteBuffer Buffer containing the bytes buffer, ByteOrder the order of the bytes of the int order) Returns an int from the current position in the given buffer, read using the given ByteOrder.
public static int	Returns: an int from the given position in the given buffer, read using the given ByteOrder getInt(ByteBuffer Buffer containing the bytes buffer, int Offset at which to start reading the int offset, ByteOrder the order of the bytes of the int order) Returns an int from the given position in the given buffer, read using the given ByteOrder.
public static int	Returns: The unsigned byte as an int getUnsignedByte(ByteBuffer Buffer containing the bytes buffer) Read an unsigned byte from a buffer
public static int	Returns: The unsigned byte as an int getUnsignedByte(ByteBuffer Buffer containing the bytes buffer, int Offset at which to read the byte offset) Read an unsigned byte from a buffer
public static int	Returns: The unsigned short as an int getUnsignedShort(ByteBuffer Buffer containing the short buffer) Read an unsigned short from a buffer
public static int	Returns: The unsigned short as an int getUnsignedShort(ByteBuffer Buffer containing the short buffer, int Offset at which to read the short offset) Read an unsigned short from a buffer
public static int	Returns: The unsigned int getUnsignedVarInt(ByteBuffer Buffer containing the variable length int buffer, int numBytes) Read an unsigned variable length int from a buffer
public static int	Returns: The unsigned int getUnsignedVarInt(ByteBuffer Buffer containing the variable length int buffer, int Offset at which to read the value offset, int numBytes) Read an unsigned variable length int from a buffer
public static void	insertEmptyData(ByteBuffer buffer, int len) Inserts empty data of the given length at the current position of the given buffer (moving existing data forward the given length).
public static boolean	matchesRange(ByteBuffer buffer, int start, byte[] pattern) Matches a pattern of bytes against the given buffer starting at the given offset.
public static void	put3ByteInt(ByteBuffer buffer into which to insert the int buffer, int Int to convert val) Put an integer into the given buffer at the given offset as a 3-byte integer.
public static void	put3ByteInt(ByteBuffer buffer into which to insert the int buffer, int Int to convert val, ByteOrder the order to insert the bytes of the int order) Put an integer into the given buffer at the given offset as a 3-byte integer.
public static void	put3ByteInt(ByteBuffer buffer into which to insert the int buffer, int Int to convert val, int offset at which to insert the int offset, ByteOrder the order to insert the bytes of the int order) Put an integer into the given buffer at the given offset as a 3-byte integer.
public static void	putInt(ByteBuffer buffer into which to insert the int buffer, int Int to insert val, ByteOrder the order to insert the bytes of the int order) Writes an int at the current position in the given buffer, using the given ByteOrder
public static void	putInt(ByteBuffer buffer into which to insert the int buffer, int Int to insert val, int offset at which to insert the int offset, ByteOrder the order to insert the bytes of the int order) Writes an int at the given position in the given buffer, using the given ByteOrder
public static void	putRange(ByteBuffer buffer, int start, int end, byte b) Sets all bytes in the given byte range to the given byte value.
public static void	skipFully(DataInputStream din, int len) Skips the given number of bytes in the given stream
public static void	swap2Bytes(byte[] buffer containing bytes to swap bytes, int offset of the first byte of the bytes to swap offset) Swaps the 2 bytes (changes endianness) of the bytes at the given offset.
public static void	swap4Bytes(byte[] buffer containing bytes to swap bytes, int offset of the first byte of the bytes to swap offset) Swaps the 4 bytes (changes endianness) of the bytes at the given offset.
public static void	swap8Bytes(byte[] buffer containing bytes to swap bytes, int offset of the first byte of the bytes to swap offset) Swaps the 8 bytes (changes endianness) of the bytes at the given offset.
private static void	swapBytesAt(byte[] bytes, int p1, int p2) Swaps the bytes at the given positions.
public static void	toHexFile(String fileName, ByteBuffer buffer, int offset, int size) Writes a chunk of data to a file in pretty printed hexidecimal.
public static String	Returns: The display String toHexString(ByteBuffer Buffer to display, starting at offset 0 buffer, int Number of bytes to read from the buffer size) Convert a byte buffer to a hexadecimal string for display
public static String	Returns: The display String toHexString(byte[] byte array to display, starting at offset 0 array) Convert a byte array to a hexadecimal string for display
public static String	Returns: The display String toHexString(ByteBuffer Buffer to display, starting at offset 0 buffer, int Offset at which to start reading the buffer offset, int Number of bytes to read from the buffer size) Convert a byte buffer to a hexadecimal string for display
public static String	Returns: The display String toHexString(ByteBuffer Buffer to display, starting at offset 0 buffer, int Offset at which to start reading the buffer offset, int Number of bytes to read from the buffer size, boolean flag indicating if formatting is required formatted) Convert a byte buffer to a hexadecimal string for display
public static String	toHexString(DatabaseImpl db, int pageNumber, int size) Convert the given number of bytes from the given database page to a hexidecimal string for display.
public static void	writeHexString(ByteBuffer buffer, String hexStr) Writes a sequence of hexidecimal values into the given buffer, where every two characters represent one byte value.

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

Field Detail

HEX_CHARS	back to summary
private static final String[] HEX_CHARS

NUM_BYTES_PER_BLOCK	back to summary
private static final int NUM_BYTES_PER_BLOCK

NUM_BYTES_PER_LINE	back to summary
private static final int NUM_BYTES_PER_LINE

Constructor Detail

ByteUtil	back to summary
private ByteUtil()

Method Detail

asUnsignedByte	back to summary
public static int asUnsignedByte(byte b) Returns the byte value converted to an unsigned int value. Returns:int the byte value converted to an unsigned int value

asUnsignedByte

back to summary

public static int asUnsignedByte(byte b)

Returns the byte value converted to an unsigned int value.

Returns:int: the byte value converted to an unsigned int value

asUnsignedShort	back to summary
public static int asUnsignedShort(short s) Returns the short value converted to an unsigned int value. Returns:int the short value converted to an unsigned int value

asUnsignedShort

back to summary

public static int asUnsignedShort(short s)

Returns the short value converted to an unsigned int value.

Returns:int: the short value converted to an unsigned int value

clearRange	back to summary
public static void clearRange(ByteBuffer buffer, int start, int end) Sets all bits in the given byte range to 0.

clearRemaining	back to summary
public static void clearRemaining(ByteBuffer buffer) Sets all bits in the given remaining byte range to 0.

closeQuietly back to summary

closeQuietly	back to summary
public static void closeQuietly(Closeable c) Closes the given `Closeable` if non-null swallowing any `IOException`. Annotations @SuppressWarnings:PMD.UnnecessaryReturn

public static void closeQuietly(Closeable c)

Closes the given Closeable if non-null swallowing any IOException.

Annotations

@SuppressWarnings:PMD.UnnecessaryReturn

concat	back to summary
public static byte[] concat(byte[] b1, byte[] b2) Concatenates and returns the given byte arrays.

copy	back to summary
public static void copy(InputStream in, OutputStream out) throws IOException Copies the given InputStream to the given OutputStream.

copyOf	back to summary
public static byte[] copyOf(byte[] arr, int newLength) Returns a copy of the given array of the given length.

copyOf	back to summary
public static byte[] copyOf(byte[] arr, int offset, int newLength) Returns a copy of the given array of the given length starting at the given position.

copyOf	back to summary
public static byte[] copyOf(byte[] arr, int offset, int newLength, int dstOffset) Returns a copy of the given array of the given length starting at the given position.

fillRange	back to summary
public static void fillRange(ByteBuffer buffer, int start, int end) Sets all bits in the given byte range to 1.

findRange	back to summary
public static int findRange(ByteBuffer buffer, int start, byte[] pattern) Searches for a pattern of bytes in the given buffer starting at the given offset. Returns:int the offset of the pattern if a match is found, -1 otherwise

findRange

back to summary

public static int findRange(ByteBuffer buffer, int start, byte[] pattern)

Searches for a pattern of bytes in the given buffer starting at the given offset.

Returns:int: the offset of the pattern if a match is found, -1 otherwise

forward	back to summary
public static int forward(ByteBuffer buffer, int count) Moves the position of the given buffer the given count from the current position. Returns:int the new buffer position

forward

back to summary

public static int forward(ByteBuffer buffer, int count)

Moves the position of the given buffer the given count from the current position.

Returns:int: the new buffer position

get3ByteInt	back to summary
public static int get3ByteInt(ByteBuffer buffer) Read a 3 byte int from a buffer Parameters buffer:ByteBuffer Buffer containing the bytes Returns:int The int

get3ByteInt

back to summary

public static int get3ByteInt(ByteBuffer buffer)

Read a 3 byte int from a buffer

Parameters

buffer:ByteBuffer: Buffer containing the bytes

Returns:int

The int

get3ByteInt	back to summary
public static int get3ByteInt(ByteBuffer buffer, ByteOrder order) Read a 3 byte int from a buffer Parameters buffer:ByteBuffer Buffer containing the bytes order:ByteOrder the order of the bytes of the int Returns:int The int

get3ByteInt

back to summary

public static int get3ByteInt(ByteBuffer buffer, ByteOrder order)

Read a 3 byte int from a buffer

Parameters

buffer:ByteBuffer: Buffer containing the bytes
order:ByteOrder: the order of the bytes of the int

Returns:int

The int

get3ByteInt	back to summary
public static int get3ByteInt(ByteBuffer buffer, int offset) Read a 3 byte int from a buffer Parameters buffer:ByteBuffer Buffer containing the bytes offset:int Offset at which to start reading the int Returns:int The int

get3ByteInt

back to summary

public static int get3ByteInt(ByteBuffer buffer, int offset)

Read a 3 byte int from a buffer

Parameters

buffer:ByteBuffer: Buffer containing the bytes
offset:int: Offset at which to start reading the int

Returns:int

The int

get3ByteInt	back to summary
public static int get3ByteInt(ByteBuffer buffer, int offset, ByteOrder order) Read a 3 byte int from a buffer Parameters buffer:ByteBuffer Buffer containing the bytes offset:int Offset at which to start reading the int order:ByteOrder the order of the bytes of the int Returns:int The int

get3ByteInt

back to summary

public static int get3ByteInt(ByteBuffer buffer, int offset, ByteOrder order)

Read a 3 byte int from a buffer

Parameters

buffer:ByteBuffer: Buffer containing the bytes
offset:int: Offset at which to start reading the int
order:ByteOrder: the order of the bytes of the int

Returns:int

The int

getBytes	back to summary
public static byte[] getBytes(ByteBuffer buffer, int len) Reads an array of bytes from the given buffer Parameters buffer:ByteBuffer Buffer containing the desired bytes len:int length of the desired bytes Returns:byte[] a new buffer with the given number of bytes from the current position in the given buffer

getBytes

back to summary

public static byte[] getBytes(ByteBuffer buffer, int len)

Reads an array of bytes from the given buffer

Parameters

buffer:ByteBuffer: Buffer containing the desired bytes
len:int: length of the desired bytes

Returns:byte[]

a new buffer with the given number of bytes from the current position in the given buffer

getBytes	back to summary
public static byte[] getBytes(ByteBuffer buffer, int offset, int len) Reads an array of bytes from the given buffer at the given offset Parameters buffer:ByteBuffer Buffer containing the desired bytes offset:int Offset at which to read the bytes len:int length of the desired bytes Returns:byte[] a new buffer with the given number of bytes from the given position in the given buffer

getBytes

back to summary

public static byte[] getBytes(ByteBuffer buffer, int offset, int len)

Reads an array of bytes from the given buffer at the given offset

Parameters

buffer:ByteBuffer: Buffer containing the desired bytes
offset:int: Offset at which to read the bytes
len:int: length of the desired bytes

Returns:byte[]

a new buffer with the given number of bytes from the given position in the given buffer

getInt	back to summary
public static int getInt(ByteBuffer buffer, ByteOrder order) Returns an int from the current position in the given buffer, read using the given ByteOrder. Parameters buffer:ByteBuffer Buffer containing the bytes order:ByteOrder the order of the bytes of the int Returns:int an int from the current position in the given buffer, read using the given ByteOrder

getInt

back to summary

public static int getInt(ByteBuffer buffer, ByteOrder order)

Returns an int from the current position in the given buffer, read using the given ByteOrder.

Parameters

buffer:ByteBuffer: Buffer containing the bytes
order:ByteOrder: the order of the bytes of the int

Returns:int

an int from the current position in the given buffer, read using the given ByteOrder

getInt	back to summary
public static int getInt(ByteBuffer buffer, int offset, ByteOrder order) Returns an int from the given position in the given buffer, read using the given ByteOrder. Parameters buffer:ByteBuffer Buffer containing the bytes offset:int Offset at which to start reading the int order:ByteOrder the order of the bytes of the int Returns:int an int from the given position in the given buffer, read using the given ByteOrder

getInt

back to summary

public static int getInt(ByteBuffer buffer, int offset, ByteOrder order)

Returns an int from the given position in the given buffer, read using the given ByteOrder.

Parameters

buffer:ByteBuffer: Buffer containing the bytes
offset:int: Offset at which to start reading the int
order:ByteOrder: the order of the bytes of the int

Returns:int

an int from the given position in the given buffer, read using the given ByteOrder

getUnsignedByte	back to summary
public static int getUnsignedByte(ByteBuffer buffer) Read an unsigned byte from a buffer Parameters buffer:ByteBuffer Buffer containing the bytes Returns:int The unsigned byte as an int

getUnsignedByte

back to summary

public static int getUnsignedByte(ByteBuffer buffer)

Read an unsigned byte from a buffer

Parameters

buffer:ByteBuffer: Buffer containing the bytes

Returns:int

The unsigned byte as an int

getUnsignedByte	back to summary
public static int getUnsignedByte(ByteBuffer buffer, int offset) Read an unsigned byte from a buffer Parameters buffer:ByteBuffer Buffer containing the bytes offset:int Offset at which to read the byte Returns:int The unsigned byte as an int

getUnsignedByte

back to summary

public static int getUnsignedByte(ByteBuffer buffer, int offset)

Read an unsigned byte from a buffer

Parameters

buffer:ByteBuffer: Buffer containing the bytes
offset:int: Offset at which to read the byte

Returns:int

The unsigned byte as an int

getUnsignedShort	back to summary
public static int getUnsignedShort(ByteBuffer buffer) Read an unsigned short from a buffer Parameters buffer:ByteBuffer Buffer containing the short Returns:int The unsigned short as an int

getUnsignedShort

back to summary

public static int getUnsignedShort(ByteBuffer buffer)

Read an unsigned short from a buffer

Parameters

buffer:ByteBuffer: Buffer containing the short

Returns:int

The unsigned short as an int

getUnsignedShort	back to summary
public static int getUnsignedShort(ByteBuffer buffer, int offset) Read an unsigned short from a buffer Parameters buffer:ByteBuffer Buffer containing the short offset:int Offset at which to read the short Returns:int The unsigned short as an int

getUnsignedShort

back to summary

public static int getUnsignedShort(ByteBuffer buffer, int offset)

Read an unsigned short from a buffer

Parameters

buffer:ByteBuffer: Buffer containing the short
offset:int: Offset at which to read the short

Returns:int

The unsigned short as an int

getUnsignedVarInt	back to summary
public static int getUnsignedVarInt(ByteBuffer buffer, int numBytes) Read an unsigned variable length int from a buffer Parameters buffer:ByteBuffer Buffer containing the variable length int Returns:int The unsigned int

getUnsignedVarInt

back to summary

public static int getUnsignedVarInt(ByteBuffer buffer, int numBytes)

Read an unsigned variable length int from a buffer

Parameters

buffer:ByteBuffer: Buffer containing the variable length int

Returns:int

The unsigned int

getUnsignedVarInt	back to summary
public static int getUnsignedVarInt(ByteBuffer buffer, int offset, int numBytes) Read an unsigned variable length int from a buffer Parameters buffer:ByteBuffer Buffer containing the variable length int offset:int Offset at which to read the value Returns:int The unsigned int

getUnsignedVarInt

back to summary

public static int getUnsignedVarInt(ByteBuffer buffer, int offset, int numBytes)

Read an unsigned variable length int from a buffer

Parameters

buffer:ByteBuffer: Buffer containing the variable length int
offset:int: Offset at which to read the value

Returns:int

The unsigned int

insertEmptyData	back to summary
public static void insertEmptyData(ByteBuffer buffer, int len) Inserts empty data of the given length at the current position of the given buffer (moving existing data forward the given length). The limit of the buffer is adjusted by the given length. The buffer is expecting to have the required capacity available.

matchesRange	back to summary
public static boolean matchesRange(ByteBuffer buffer, int start, byte[] pattern) Matches a pattern of bytes against the given buffer starting at the given offset.

put3ByteInt	back to summary
public static void put3ByteInt(ByteBuffer buffer, int val) Put an integer into the given buffer at the given offset as a 3-byte integer. Parameters buffer:ByteBuffer buffer into which to insert the int val:int Int to convert

put3ByteInt

back to summary

public static void put3ByteInt(ByteBuffer buffer, int val)

Put an integer into the given buffer at the given offset as a 3-byte integer.

Parameters

buffer:ByteBuffer: buffer into which to insert the int
val:int: Int to convert

put3ByteInt	back to summary
public static void put3ByteInt(ByteBuffer buffer, int val, ByteOrder order) Put an integer into the given buffer at the given offset as a 3-byte integer. Parameters buffer:ByteBuffer buffer into which to insert the int val:int Int to convert order:ByteOrder the order to insert the bytes of the int

put3ByteInt

back to summary

public static void put3ByteInt(ByteBuffer buffer, int val, ByteOrder order)

Put an integer into the given buffer at the given offset as a 3-byte integer.

Parameters

buffer:ByteBuffer: buffer into which to insert the int
val:int: Int to convert
order:ByteOrder: the order to insert the bytes of the int

put3ByteInt	back to summary
public static void put3ByteInt(ByteBuffer buffer, int val, int offset, ByteOrder order) Put an integer into the given buffer at the given offset as a 3-byte integer. Parameters buffer:ByteBuffer buffer into which to insert the int val:int Int to convert offset:int offset at which to insert the int order:ByteOrder the order to insert the bytes of the int

put3ByteInt

back to summary

public static void put3ByteInt(ByteBuffer buffer, int val, int offset, ByteOrder order)

Put an integer into the given buffer at the given offset as a 3-byte integer.

Parameters

buffer:ByteBuffer: buffer into which to insert the int
val:int: Int to convert
offset:int: offset at which to insert the int
order:ByteOrder: the order to insert the bytes of the int

putInt	back to summary
public static void putInt(ByteBuffer buffer, int val, ByteOrder order) Writes an int at the current position in the given buffer, using the given ByteOrder Parameters buffer:ByteBuffer buffer into which to insert the int val:int Int to insert order:ByteOrder the order to insert the bytes of the int

putInt

back to summary

public static void putInt(ByteBuffer buffer, int val, ByteOrder order)

Writes an int at the current position in the given buffer, using the given ByteOrder

Parameters

buffer:ByteBuffer: buffer into which to insert the int
val:int: Int to insert
order:ByteOrder: the order to insert the bytes of the int

putInt	back to summary
public static void putInt(ByteBuffer buffer, int val, int offset, ByteOrder order) Writes an int at the given position in the given buffer, using the given ByteOrder Parameters buffer:ByteBuffer buffer into which to insert the int val:int Int to insert offset:int offset at which to insert the int order:ByteOrder the order to insert the bytes of the int

putInt

back to summary

public static void putInt(ByteBuffer buffer, int val, int offset, ByteOrder order)

Writes an int at the given position in the given buffer, using the given ByteOrder

Parameters

buffer:ByteBuffer: buffer into which to insert the int
val:int: Int to insert
offset:int: offset at which to insert the int
order:ByteOrder: the order to insert the bytes of the int

putRange	back to summary
public static void putRange(ByteBuffer buffer, int start, int end, byte b) Sets all bytes in the given byte range to the given byte value.

skipFully	back to summary
public static void skipFully(DataInputStream din, int len) throws IOException Skips the given number of bytes in the given stream

swap2Bytes	back to summary
public static void swap2Bytes(byte[] bytes, int offset) Swaps the 2 bytes (changes endianness) of the bytes at the given offset. Parameters bytes:byte[] buffer containing bytes to swap offset:int offset of the first byte of the bytes to swap

swap2Bytes

back to summary

public static void swap2Bytes(byte[] bytes, int offset)

Swaps the 2 bytes (changes endianness) of the bytes at the given offset.

Parameters

bytes:byte[]: buffer containing bytes to swap
offset:int: offset of the first byte of the bytes to swap

swap4Bytes	back to summary
public static void swap4Bytes(byte[] bytes, int offset) Swaps the 4 bytes (changes endianness) of the bytes at the given offset. Parameters bytes:byte[] buffer containing bytes to swap offset:int offset of the first byte of the bytes to swap

swap4Bytes

back to summary

public static void swap4Bytes(byte[] bytes, int offset)

Swaps the 4 bytes (changes endianness) of the bytes at the given offset.

Parameters

bytes:byte[]: buffer containing bytes to swap
offset:int: offset of the first byte of the bytes to swap

swap8Bytes	back to summary
public static void swap8Bytes(byte[] bytes, int offset) Swaps the 8 bytes (changes endianness) of the bytes at the given offset. Parameters bytes:byte[] buffer containing bytes to swap offset:int offset of the first byte of the bytes to swap

swap8Bytes

back to summary

public static void swap8Bytes(byte[] bytes, int offset)

Swaps the 8 bytes (changes endianness) of the bytes at the given offset.

Parameters

bytes:byte[]: buffer containing bytes to swap
offset:int: offset of the first byte of the bytes to swap

swapBytesAt	back to summary
private static void swapBytesAt(byte[] bytes, int p1, int p2) Swaps the bytes at the given positions.

toHexFile	back to summary
public static void toHexFile(String fileName, ByteBuffer buffer, int offset, int size) throws IOException Writes a chunk of data to a file in pretty printed hexidecimal. Annotations @SuppressWarnings:PMD.LinguisticNaming

toHexFile

back to summary

public static void toHexFile(String fileName, ByteBuffer buffer, int offset, int size) throws IOException

Writes a chunk of data to a file in pretty printed hexidecimal.

Annotations

@SuppressWarnings:PMD.LinguisticNaming

toHexString	back to summary
public static String toHexString(ByteBuffer buffer, int size) Convert a byte buffer to a hexadecimal string for display Parameters buffer:ByteBuffer Buffer to display, starting at offset 0 size:int Number of bytes to read from the buffer Returns:String The display String

toHexString

back to summary

public static String toHexString(ByteBuffer buffer, int size)

Convert a byte buffer to a hexadecimal string for display

Parameters

buffer:ByteBuffer: Buffer to display, starting at offset 0
size:int: Number of bytes to read from the buffer

Returns:String

The display String

toHexString

back to summary

public static String toHexString(byte[] array)

Convert a byte array to a hexadecimal string for display

Parameters

array:byte[]: byte array to display, starting at offset 0

Returns:String

The display String

toHexString

back to summary

public static String toHexString(ByteBuffer buffer, int offset, int size)

Convert a byte buffer to a hexadecimal string for display

Parameters

buffer:ByteBuffer: Buffer to display, starting at offset 0
offset:int: Offset at which to start reading the buffer
size:int: Number of bytes to read from the buffer

Returns:String

The display String

toHexString

back to summary

public static String toHexString(ByteBuffer buffer, int offset, int size, boolean formatted)

Convert a byte buffer to a hexadecimal string for display

Parameters

buffer:ByteBuffer: Buffer to display, starting at offset 0
offset:int: Offset at which to start reading the buffer
size:int: Number of bytes to read from the buffer
formatted:boolean: flag indicating if formatting is required

Returns:String

The display String

toHexString	back to summary
public static String toHexString(DatabaseImpl db, int pageNumber, int size) throws IOException Convert the given number of bytes from the given database page to a hexidecimal string for display.

writeHexString	back to summary
public static void writeHexString(ByteBuffer buffer, String hexStr) throws IOException Writes a sequence of hexidecimal values into the given buffer, where every two characters represent one byte value.

io.github.spannm.jackcess.impl back to summary

public Class ByteUtil.ByteStream

Class Inheritance

extends OutputStream

java.lang.Object
java.io.OutputStream
io.github.spannm.jackcess.impl.ByteUtil.ByteStream

Known Direct Subclasses

io.github.spannm.jackcess.impl.General97IndexCodes.NibbleStream, io.github.spannm.jackcess.impl.GeneralLegacyIndexCodes.ExtraCodesStream

Utility byte stream similar to ByteArrayOutputStream but with extended accessibility to the bytes.

Field Summary

Modifier and Type	Field and Description
private byte[]	bytes
private int	lastLength
private int	length

Constructor Summary

Access	Constructor and Description
public	ByteStream()
public	ByteStream(int capacity)

Method Summary

Modifier and Type	Method and Description
protected void	ensureCapacity(int newLength)
protected void	ensureNewCapacity(int numBytes)
public byte	get(int offset)
public byte[]	getBytes()
public int	getLength()
public void	reset()
public void	set(int offset, byte b)
public void	setBits(int offset, byte b)
public void	skip(int n)
public byte[]	toByteArray()
public void	trimTrailing(byte minTrimCode, byte maxTrimCode)
public void	write(int b) Implements abstract java.io.OutputStream.write. Writes the specified byte to this output stream.
public void	write(byte[] b) Overrides java.io.OutputStream.write. Writes `b.length` bytes from the specified byte array to this output stream.
public void	write(byte[] b, int offset, int len) Overrides java.io.OutputStream.write. Writes `len` bytes from the specified byte array starting at offset `off` to this output stream.
public void	writeFill(int len, byte b)
public void	writeTo(ByteUtil.ByteStream out)

Inherited from java.io.OutputStream:: close flush nullOutputStream

Field Detail

bytes	back to summary
private byte[] bytes

lastLength	back to summary
private int lastLength

length	back to summary
private int length

Constructor Detail

ByteStream	back to summary
public ByteStream()

ByteStream	back to summary
public ByteStream(int capacity)

Method Detail

ensureCapacity	back to summary
protected void ensureCapacity(int newLength)

ensureNewCapacity	back to summary
protected void ensureNewCapacity(int numBytes)

get	back to summary
public byte get(int offset)

getBytes	back to summary
public byte[] getBytes()

getLength	back to summary
public int getLength()

reset	back to summary
public void reset()

set	back to summary
public void set(int offset, byte b)

setBits	back to summary
public void setBits(int offset, byte b)

skip	back to summary
public void skip(int n)

toByteArray	back to summary
public byte[] toByteArray()

trimTrailing	back to summary
public void trimTrailing(byte minTrimCode, byte maxTrimCode)

write back to summary

public void write(int b)

Implements abstract java.io.OutputStream.write.

Doc from java.io.OutputStream.write.

Writes the specified byte to this output stream. The general contract for write is that one byte is written to the output stream. The byte to be written is the eight low-order bits of the argument b. The 24 high-order bits of b are ignored.

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@Override

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public void write(byte[] b)

Overrides java.io.OutputStream.write.

Doc from java.io.OutputStream.write.

Writes b.length bytes from the specified byte array to this output stream. The general contract for write(b) is that it should have exactly the same effect as the call write(b, 0, b.length).

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@Override

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public void write(byte[] b, int offset, int len)

Overrides java.io.OutputStream.write.

Doc from java.io.OutputStream.write.

Writes len bytes from the specified byte array starting at offset off to this output stream. The general contract for write(b, off, len) is that some of the bytes in the array b are written to the output stream in order; element b[off] is the first byte written and b[off+len-1] is the last byte written by this operation.

If b is null, a NullPointerException is thrown.

If off is negative, or len is negative, or off+len is greater than the length of the array b, then an IndexOutOfBoundsException is thrown.

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@Override

writeFill	back to summary
public void writeFill(int len, byte b)

writeTo	back to summary
public void writeTo(ByteUtil.ByteStream out)

public final Class ByteUtil

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public Class ByteUtil.ByteStream

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