io.pravega.common.util

Class BitConverter

java.lang.Object

io.pravega.common.util.BitConverter

public final class BitConverter
extends java.lang.Object

Helper methods for various Number to Bit conversions.

Constructor Summary

Constructors

Constructor and Description
BitConverter()

Method Summary

Modifier and Type	Method and Description
static int	readInt(ArrayView source, int position) Reads a 32-bit integer from the given ArrayView starting at the given position.
static int	readInt(byte[] source, int position) Reads a 32-bit integer from the given byte array starting at the given position.
static int	readInt(java.io.InputStream source) Reads a 32-bit integer from the given InputStream that was encoded using BitConverter.writeInt.
static long	readLong(ArrayView source, int position) Reads a 64-bit long from the given ArrayView starting at the given position.
static long	readLong(byte[] source, int position) Reads a 64-bit long from the given byte array starting at the given position.
static int	writeInt(ArrayView target, int offset, int value) Writes the given 32-bit Integer to the given ArrayView at the given offset.
static int	writeInt(byte[] target, int offset, int value) Writes the given 32-bit Integer to the given byte array at the given offset.
static int	writeInt(java.io.OutputStream target, int value) Writes the given 32-bit Integer to the given OutputStream.
static int	writeLong(ArrayView target, int offset, long value) Writes the given 64-bit Long to the given ArrayView at the given offset.
static int	writeLong(byte[] target, int offset, long value) Writes the given 64-bit Long to the given byte array at the given offset.

Methods inherited from class java.lang.Object

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

Constructor Detail

BitConverter

public BitConverter()

Method Detail

writeInt

public static int writeInt(ArrayView target,
                           int offset,
                           int value)

Writes the given 32-bit Integer to the given ArrayView at the given offset.

Parameters:

target - The ArrayView to write to.

offset - The offset within the ArrayView to write at.

value - The value to write.

Returns:

The number of bytes written.

writeInt

public static int writeInt(byte[] target,
                           int offset,
                           int value)

Writes the given 32-bit Integer to the given byte array at the given offset.

Parameters:

target - The byte array to write to.

offset - The offset within the byte array to write at.

value - The value to write.

Returns:

The number of bytes written.

writeInt

public static int writeInt(java.io.OutputStream target,
                           int value)
                    throws java.io.IOException

Writes the given 32-bit Integer to the given OutputStream.

Parameters:

target - The OutputStream to write to.

value - The value to write.

Returns:

The number of bytes written.

Throws:

java.io.IOException - If an exception got thrown.

readInt

public static int readInt(byte[] source,
                          int position)

Reads a 32-bit integer from the given byte array starting at the given position.

Parameters:

source - The byte array to read from.

position - The position in the byte array to start reading at.

Returns:

The read number.

readInt

public static int readInt(ArrayView source,
                          int position)

Reads a 32-bit integer from the given ArrayView starting at the given position.

Parameters:

source - The ArrayView to read from.

position - The position in the ArrayView to start reading at.

Returns:

The read number.

readInt

public static int readInt(java.io.InputStream source)
                   throws java.io.IOException

Reads a 32-bit integer from the given InputStream that was encoded using BitConverter.writeInt.

Parameters:

source - The InputStream to read from.

Returns:

The read number.

Throws:

java.io.IOException - If an exception got thrown.

writeLong

public static int writeLong(ArrayView target,
                            int offset,
                            long value)

Writes the given 64-bit Long to the given ArrayView at the given offset.

Parameters:

target - The ArrayView to write to.

offset - The offset within the ArrayView to write at.

value - The value to write.

Returns:

The number of bytes written.

writeLong

public static int writeLong(byte[] target,
                            int offset,
                            long value)

Writes the given 64-bit Long to the given byte array at the given offset.

Parameters:

target - The byte array to write to.

offset - The offset within the byte array to write at.

value - The value to write.

Returns:

The number of bytes written.

readLong

public static long readLong(ArrayView source,
                            int position)

Reads a 64-bit long from the given ArrayView starting at the given position.

Parameters:

source - The ArrayView to read from.

position - The position in the ArrayView to start reading at.

Returns:

The read number.

readLong

public static long readLong(byte[] source,
                            int position)

Reads a 64-bit long from the given byte array starting at the given position.

Parameters:

source - The byte array to read from.

position - The position in the byte array to start reading at.

Returns:

The read number.