io.zeebe.util.buffer

Class BufferUtil

java.lang.Object

io.zeebe.util.buffer.BufferUtil

public final class BufferUtil
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
static int	DEFAULT_WRAP
static int	NO_WRAP

Method Summary

Modifier and Type	Method and Description
static byte[]	bufferAsArray(org.agrona.DirectBuffer buffer)
static String	bufferAsHexString(BufferWriter writer)
static String	bufferAsHexString(BufferWriter writer, int wrap)
static String	bufferAsHexString(org.agrona.DirectBuffer buffer)
static String	bufferAsHexString(org.agrona.DirectBuffer buffer, int wrap)
static String	bufferAsHexString(org.agrona.DirectBuffer buffer, int offset, int length)
static String	bufferAsHexString(org.agrona.DirectBuffer buffer, int offset, int length, int wrap)
static String	bufferAsString(org.agrona.DirectBuffer buffer)
static String	bufferAsString(org.agrona.DirectBuffer buffer, int offset, int length)
static int	bufferContentsHash(org.agrona.DirectBuffer buffer)
static String	bytesAsHexString(byte[] bytes)
static String	bytesAsHexString(byte[] bytes, int wrap)
static org.agrona.DirectBuffer	cloneBuffer(org.agrona.DirectBuffer src) Creates a new instance of the src buffer class and copies the underlying bytes.
static org.agrona.DirectBuffer	cloneBuffer(org.agrona.DirectBuffer src, int offset, int length) Creates a new instance of the src buffer class and copies the underlying bytes.
static boolean	contentsEqual(org.agrona.DirectBuffer buffer1, org.agrona.DirectBuffer buffer2) byte-by-byte comparison of two buffers
static boolean	equals(org.agrona.DirectBuffer buffer1, org.agrona.DirectBuffer buffer2) Compare the given buffers.
protected static byte[]	intArrayToByteArray(int[] input)
static int	readIntoBuffer(org.agrona.DirectBuffer readBuffer, int offset, BufferReader reader) NOTE: as opposed to readIntoBuffer above, this does not clone the buffer to be read, just wraps it.
static int	readIntoBuffer(org.agrona.DirectBuffer buffer, int offset, org.agrona.DirectBuffer valueBuffer)
static boolean	startsWith(byte[] prefix, int prefixOffset, int prefixLength, byte[] content, int contentOffset, int contentLength) Performs byte wise comparison of a given byte array and a prefix.
static org.agrona.MutableDirectBuffer	wrapArray(byte[] array)
static org.agrona.MutableDirectBuffer	wrapBytes(int... bytes) Does not care about overflows; just for convenience of writing int literals
static org.agrona.DirectBuffer	wrapString(String argument)
static int	writeIntoBuffer(org.agrona.MutableDirectBuffer writeBuffer, int offset, BufferWriter value)
static int	writeIntoBuffer(org.agrona.MutableDirectBuffer writeBuffer, int offset, org.agrona.DirectBuffer valueBuffer)

Methods inherited from class java.lang.Object

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

Field Detail

NO_WRAP

public static final int NO_WRAP

See Also:

Constant Field Values

DEFAULT_WRAP

public static final int DEFAULT_WRAP

See Also:

Constant Field Values

Method Detail

bufferAsString

public static String bufferAsString(org.agrona.DirectBuffer buffer)

bufferAsString

public static String bufferAsString(org.agrona.DirectBuffer buffer,
                                    int offset,
                                    int length)

wrapString

public static org.agrona.DirectBuffer wrapString(String argument)

equals

public static boolean equals(org.agrona.DirectBuffer buffer1,
                             org.agrona.DirectBuffer buffer2)

Compare the given buffers.

contentsEqual

public static boolean contentsEqual(org.agrona.DirectBuffer buffer1,
                                    org.agrona.DirectBuffer buffer2)

byte-by-byte comparison of two buffers

cloneBuffer

public static org.agrona.DirectBuffer cloneBuffer(org.agrona.DirectBuffer src)

Creates a new instance of the src buffer class and copies the underlying bytes.

Parameters:

src - the buffer to copy from

Returns:

the new buffer instance

cloneBuffer

public static org.agrona.DirectBuffer cloneBuffer(org.agrona.DirectBuffer src,
                                                  int offset,
                                                  int length)

Creates a new instance of the src buffer class and copies the underlying bytes.

Parameters:

src - the buffer to copy from

offset - the offset to start in the src buffer

length - the number of bytes to clone

Returns:

the new buffer instance

bufferAsHexString

public static String bufferAsHexString(BufferWriter writer)

bufferAsHexString

public static String bufferAsHexString(BufferWriter writer,
                                       int wrap)

bufferAsHexString

public static String bufferAsHexString(org.agrona.DirectBuffer buffer)

bufferAsHexString

public static String bufferAsHexString(org.agrona.DirectBuffer buffer,
                                       int wrap)

bufferAsHexString

public static String bufferAsHexString(org.agrona.DirectBuffer buffer,
                                       int offset,
                                       int length)

bufferAsHexString

public static String bufferAsHexString(org.agrona.DirectBuffer buffer,
                                       int offset,
                                       int length,
                                       int wrap)

bytesAsHexString

public static String bytesAsHexString(byte[] bytes)

bytesAsHexString

public static String bytesAsHexString(byte[] bytes,
                                      int wrap)

bufferAsArray

public static byte[] bufferAsArray(org.agrona.DirectBuffer buffer)

Returns:

a new array that is a copy of the buffer's contents

wrapArray

public static org.agrona.MutableDirectBuffer wrapArray(byte[] array)

wrapBytes

public static org.agrona.MutableDirectBuffer wrapBytes(int... bytes)

Does not care about overflows; just for convenience of writing int literals

bufferContentsHash

public static int bufferContentsHash(org.agrona.DirectBuffer buffer)

startsWith

public static boolean startsWith(byte[] prefix,
                                 int prefixOffset,
                                 int prefixLength,
                                 byte[] content,
                                 int contentOffset,
                                 int contentLength)

Performs byte wise comparison of a given byte array and a prefix.

Parameters:

prefix - the prefix to look for

prefixOffset - offset in the prefix array

prefixLength - length of the prefix

content - the array to check against

contentOffset - the offset in the content array

contentLength - the length of the content to check

Returns:

true if array starts with the all bytes contained in prefix

intArrayToByteArray

protected static byte[] intArrayToByteArray(int[] input)

readIntoBuffer

public static int readIntoBuffer(org.agrona.DirectBuffer buffer,
                                 int offset,
                                 org.agrona.DirectBuffer valueBuffer)

writeIntoBuffer

public static int writeIntoBuffer(org.agrona.MutableDirectBuffer writeBuffer,
                                  int offset,
                                  org.agrona.DirectBuffer valueBuffer)

writeIntoBuffer

public static int writeIntoBuffer(org.agrona.MutableDirectBuffer writeBuffer,
                                  int offset,
                                  BufferWriter value)

readIntoBuffer

public static int readIntoBuffer(org.agrona.DirectBuffer readBuffer,
                                 int offset,
                                 BufferReader reader)

NOTE: as opposed to readIntoBuffer above, this does not clone the buffer to be read, just wraps it.