com.jn.langx.asn1.bytestring

类 ByteStringBuffer

java.lang.Object

com.jn.langx.asn1.bytestring.ByteStringBuffer

所有已实现的接口:

Serializable, Appendable

public final class ByteStringBuffer
extends Object
implements Serializable, Appendable

This class provides a growable byte array to which data can be appended. Methods in this class are not synchronized.

另请参阅:

序列化表格

构造器概要

构造器

构造器和说明
ByteStringBuffer() Creates a new empty byte string buffer with a default initial capacity.
ByteStringBuffer(int initialCapacity) Creates a new byte string buffer with the specified capacity.

方法概要

限定符和类型	方法和说明
ByteStringBuffer	append(boolean b) Appends the provided boolean value to this buffer.
ByteStringBuffer	append(byte b) Appends the provided byte to this buffer.
ByteStringBuffer	append(byte[] b) Appends the contents of the provided byte array to this buffer.
ByteStringBuffer	append(byte[] b, int off, int len) Appends the specified portion of the provided byte array to this buffer.
ByteStringBuffer	append(ByteString b) Appends the provided byte string to this buffer.
ByteStringBuffer	append(ByteStringBuffer buffer) Appends the provided byte string buffer to this buffer.
ByteStringBuffer	append(char c) Appends the provided character to this buffer.
ByteStringBuffer	append(char[] c) Appends the contents of the provided character array to this buffer.
ByteStringBuffer	append(char[] c, int off, int len) Appends the specified portion of the provided character array to this buffer.
ByteStringBuffer	append(CharSequence s) Appends the provided character sequence to this buffer.
ByteStringBuffer	append(CharSequence s, int start, int end) Appends the provided character sequence to this buffer.
ByteStringBuffer	append(int i) Appends the provided integer value to this buffer.
ByteStringBuffer	append(long l) Appends the provided long value to this buffer.
ByteStringBuffer	appendCodePoint(int codePoint) Appends the provided code point to this buffer.
InputStream	asInputStream() Creates an input stream that may be used to read content from this buffer.
byte	byteAt(int offset) Retrieves the byte at the specified offset in the buffer.
byte[]	bytesAt(int offset, int length) Retrieves the specified subset of bytes from the buffer.
int	capacity() Returns the current capacity for this buffer.
ByteStringBuffer	clear() Clears the contents of this buffer.
ByteStringBuffer	clear(boolean zero) Clears the contents of this buffer.
ByteStringBuffer	delete(int len) Deletes the specified number of bytes from the beginning of the buffer.
ByteStringBuffer	delete(int off, int len) Deletes the indicated number of bytes from the specified location in the buffer.
ByteStringBuffer	duplicate() Creates a duplicate of this byte string buffer.
boolean	endsWith(byte[] bytes) Indicates whether this buffer ends with the specified set of bytes.
void	ensureCapacity(int minimumCapacity) Ensures that the total capacity of this buffer is at least equal to the specified size.
boolean	equals(Object o) Indicates whether the provided object is a byte string buffer with contents that are identical to that of this buffer.
byte[]	getBackingArray() Retrieves the current backing array for this buffer.
int	hashCode() Retrieves a hash code for this byte array.
ByteStringBuffer	insert(int pos, boolean b) Inserts the provided boolean value to this buffer.
ByteStringBuffer	insert(int pos, byte b) Inserts the provided byte at the specified position in this buffer.
ByteStringBuffer	insert(int pos, byte[] b) Inserts the contents of the provided byte array at the specified position in this buffer.
ByteStringBuffer	insert(int pos, byte[] b, int off, int len) Inserts a portion of the data in the provided array at the specified position in this buffer.
ByteStringBuffer	insert(int pos, ByteString b) Inserts the provided byte string into this buffer at the specified position.
ByteStringBuffer	insert(int pos, ByteStringBuffer buffer) Inserts the provided byte string buffer into this buffer at the specified position.
ByteStringBuffer	insert(int pos, char c) Inserts the provided character into this buffer at the provided position.
ByteStringBuffer	insert(int pos, char[] c) Inserts the contents of the provided character array into this buffer at the specified position.
ByteStringBuffer	insert(int pos, char[] c, int off, int len) Inserts the specified portion of the provided character array to this buffer at the specified position.
ByteStringBuffer	insert(int pos, CharSequence s) Inserts the provided character sequence to this buffer at the specified position.
ByteStringBuffer	insert(int pos, int i) Inserts the provided integer value to this buffer.
ByteStringBuffer	insert(int pos, long l) Inserts the provided long value to this buffer.
ByteStringBuffer	insertCodePoint(int pos, int codePoint) Inserts the provided code point into this buffer.
boolean	isEmpty() Indicates whether this buffer is currently empty.
int	length() Retrieves the number of bytes contained in this buffer.
void	readFrom(File file) Reads the contents of the specified file into this buffer, appending it to the end of the buffer.
void	readFrom(InputStream inputStream) Reads data from the provided input stream into this buffer, appending it to the end of the buffer.
ByteStringBuffer	set(boolean b) Sets the contents of this buffer to include only the provided boolean value.
ByteStringBuffer	set(byte b) Sets the contents of this buffer to include only the provided byte.
ByteStringBuffer	set(byte[] b) Sets the contents of this buffer to the contents of the provided byte array.
ByteStringBuffer	set(byte[] b, int off, int len) Sets the contents of this buffer to the specified portion of the provided byte array.
ByteStringBuffer	set(ByteString b) Sets the contents of this buffer to the contents of the provided byte string.
ByteStringBuffer	set(ByteStringBuffer buffer) Sets the contents of this buffer to the contents of the provided byte string buffer.
ByteStringBuffer	set(char c) Sets the contents of this buffer to include only the provided character.
ByteStringBuffer	set(char[] c) Sets the contents of this buffer to the contents of the provided character array.
ByteStringBuffer	set(char[] c, int off, int len) Sets the contents of this buffer to the specified portion of the provided character array.
ByteStringBuffer	set(CharSequence s) Sets the contents of this buffer to the specified portion of the provided character sequence.
ByteStringBuffer	set(int i) Sets the contents of this buffer to include only the provided integer value.
ByteStringBuffer	set(long l) Sets the contents of this buffer to include only the provided long value.
void	setCapacity(int capacity) Sets the capacity equal to the specified value.
void	setLength(int length) Sets the length of this buffer to the specified value.
boolean	startsWith(byte[] bytes) Indicates whether this buffer starts with the specified set of bytes.
byte[]	toByteArray() Returns a new byte array with the content from this buffer.
ByteString	toByteString() Returns a new byte string with the content from this buffer.
String	toString() Retrieves a string representation of the contents for this buffer.
ByteStringBuffer	trimToSize() Trims the backing array to the minimal size required for this buffer.
void	write(OutputStream outputStream) Writes the contents of this byte string buffer to the provided output stream.

从类继承的方法 java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

构造器详细资料

ByteStringBuffer

public ByteStringBuffer()

Creates a new empty byte string buffer with a default initial capacity.

ByteStringBuffer

public ByteStringBuffer(int initialCapacity)

Creates a new byte string buffer with the specified capacity.

参数:

initialCapacity - The initial capacity to use for the buffer. It must be greater than or equal to zero.

方法详细资料

append

@NonNull
public ByteStringBuffer append(boolean b)

Appends the provided boolean value to this buffer.

参数:

b - The boolean value to be appended to this buffer.

返回:

A reference to this buffer.

append

@NonNull
public ByteStringBuffer append(byte b)

Appends the provided byte to this buffer.

参数:

b - The byte to be appended to this buffer.

返回:

A reference to this buffer.

append

@NonNull
public ByteStringBuffer append(@NonNull
                                         byte[] b)
                                  throws NullPointerException

Appends the contents of the provided byte array to this buffer.

参数:

b - The array whose contents should be appended to this buffer. It must not be null.

返回:

A reference to this buffer.

抛出:

NullPointerException - If the provided array is null.

append

@NonNull
public ByteStringBuffer append(@NonNull
                                         byte[] b,
                                         int off,
                                         int len)
                                  throws NullPointerException,
                                         IndexOutOfBoundsException

Appends the specified portion of the provided byte array to this buffer.

参数:

b - The array whose contents should be appended to this buffer.

off - The offset within the array at which to begin copying data.

len - The number of bytes to copy.

返回:

A reference to this buffer.

抛出:

NullPointerException - If the provided array is null.

IndexOutOfBoundsException - If the offset or length are negative, if the offset plus the length is beyond the end of the provided array.

append

@NonNull
public ByteStringBuffer append(@NonNull
                                         ByteString b)
                                  throws NullPointerException

Appends the provided byte string to this buffer.

参数:

b - The byte string to be appended to this buffer.

返回:

A reference to this buffer.

抛出:

NullPointerException - If the provided byte string is null.

append

@NonNull
public ByteStringBuffer append(@NonNull
                                         ByteStringBuffer buffer)
                                  throws NullPointerException

Appends the provided byte string buffer to this buffer.

参数:

buffer - The buffer whose contents should be appended to this buffer.

返回:

A reference to this buffer.

抛出:

NullPointerException - If the provided buffer is null.

append

@NonNull
public ByteStringBuffer append(char c)

Appends the provided character to this buffer.

指定者:

append 在接口中 Appendable

参数:

c - The character to be appended to this buffer.

返回:

A reference to this buffer.

append

@NonNull
public ByteStringBuffer append(@NonNull
                                         char[] c)
                                  throws NullPointerException

Appends the contents of the provided character array to this buffer.

参数:

c - The array whose contents should be appended to this buffer.

返回:

A reference to this buffer.

抛出:

NullPointerException - If the provided array is null.

append

@NonNull
public ByteStringBuffer append(@NonNull
                                         char[] c,
                                         int off,
                                         int len)
                                  throws NullPointerException,
                                         IndexOutOfBoundsException

Appends the specified portion of the provided character array to this buffer.

参数:

c - The array whose contents should be appended to this buffer.

off - The offset within the array at which to begin copying data.

len - The number of characters to copy.

返回:

A reference to this buffer.

抛出:

NullPointerException - If the provided array is null.

IndexOutOfBoundsException - If the offset or length are negative, if the offset plus the length is beyond the end of the provided array.

append

@NonNull
public ByteStringBuffer append(@NonNull
                                         CharSequence s)
                                  throws NullPointerException

Appends the provided character sequence to this buffer.

指定者:

append 在接口中 Appendable

参数:

s - The character sequence to append to this buffer.

返回:

A reference to this buffer.

抛出:

NullPointerException - If the provided character sequence is null.

append

@NonNull
public ByteStringBuffer append(@NonNull
                                         CharSequence s,
                                         int start,
                                         int end)
                                  throws NullPointerException,
                                         IndexOutOfBoundsException

Appends the provided character sequence to this buffer.

指定者:

append 在接口中 Appendable

参数:

s - The character sequence to append to this buffer.

start - The position in the sequence of the first character in the sequence to be appended to this buffer.

end - The position in the sequence immediately after the position of the last character to be appended.

返回:

A reference to this buffer.

抛出:

NullPointerException - If the provided character sequence is null.

IndexOutOfBoundsException - If the provided start or end positions are outside the bounds of the given character sequence.

append

@NonNull
public ByteStringBuffer append(int i)

Appends the provided integer value to this buffer.

参数:

i - The integer value to be appended to this buffer.

返回:

A reference to this buffer.

append

@NonNull
public ByteStringBuffer append(long l)

Appends the provided long value to this buffer.

参数:

l - The long value to be appended to this buffer.

返回:

A reference to this buffer.

appendCodePoint

@NonNull
public ByteStringBuffer appendCodePoint(int codePoint)

Appends the provided code point to this buffer.

参数:

codePoint - The code point to append to this buffer.

返回:

A reference to this buffer.

insert

@NonNull
public ByteStringBuffer insert(int pos,
                                         boolean b)
                                  throws IndexOutOfBoundsException

Inserts the provided boolean value to this buffer.

参数:

pos - The position at which the value is to be inserted.

b - The boolean value to be inserted into this buffer.

返回:

A reference to this buffer.

抛出:

IndexOutOfBoundsException - If the specified position is negative or greater than the current length.

insert

@NonNull
public ByteStringBuffer insert(int pos,
                                         byte b)
                                  throws IndexOutOfBoundsException

Inserts the provided byte at the specified position in this buffer.

参数:

pos - The position at which the byte is to be inserted.

b - The byte to be inserted into this buffer.

返回:

A reference to this buffer.

抛出:

IndexOutOfBoundsException - If the specified position is negative or greater than the current length.

insert

@NonNull
public ByteStringBuffer insert(int pos,
                                         @NonNull
                                         byte[] b)
                                  throws NullPointerException,
                                         IndexOutOfBoundsException

Inserts the contents of the provided byte array at the specified position in this buffer.

参数:

pos - The position at which the data is to be inserted.

b - The array whose contents should be inserted into this buffer.

返回:

A reference to this buffer.

抛出:

NullPointerException - If the provided array is null.

IndexOutOfBoundsException - If the specified position is negative or greater than the current length.

insert

@NonNull
public ByteStringBuffer insert(int pos,
                                         @NonNull
                                         byte[] b,
                                         int off,
                                         int len)
                                  throws NullPointerException,
                                         IndexOutOfBoundsException

Inserts a portion of the data in the provided array at the specified position in this buffer.

Appends the specified portion of the provided byte array to this buffer.

参数:

pos - The position at which the data is to be inserted.

b - The array whose contents should be inserted into this buffer.

off - The offset within the array at which to begin copying data.

len - The number of bytes to copy.

返回:

A reference to this buffer.

抛出:

NullPointerException - If the provided array is null.

IndexOutOfBoundsException - If the specified position is negative or greater than the current length, if the offset or length are negative, if the offset plus the length is beyond the end of the provided array.

insert

@NonNull
public ByteStringBuffer insert(int pos,
                                         @NonNull
                                         ByteString b)
                                  throws NullPointerException,
                                         IndexOutOfBoundsException

Inserts the provided byte string into this buffer at the specified position.

参数:

pos - The position at which the data is to be inserted.

b - The byte string to insert into this buffer.

返回:

A reference to this buffer.

抛出:

NullPointerException - If the provided byte string is null.

IndexOutOfBoundsException - If the specified position is negative or greater than the current length.

insert

@NonNull
public ByteStringBuffer insert(int pos,
                                         @NonNull
                                         ByteStringBuffer buffer)
                                  throws NullPointerException,
                                         IndexOutOfBoundsException

Inserts the provided byte string buffer into this buffer at the specified position.

参数:

pos - The position at which the data is to be inserted.

buffer - The buffer whose contents should be inserted into this buffer.

返回:

A reference to this buffer.

抛出:

NullPointerException - If the provided buffer is null.

IndexOutOfBoundsException - If the specified position is negative or greater than the current length.

insert

@NonNull
public ByteStringBuffer insert(int pos,
                                         char c)
                                  throws IndexOutOfBoundsException

Inserts the provided character into this buffer at the provided position.

参数:

pos - The position at which the character is to be inserted.

c - The character to be inserted into this buffer.

返回:

A reference to this buffer.

抛出:

IndexOutOfBoundsException - If the specified position is negative or greater than the current length.

insert

@NonNull
public ByteStringBuffer insert(int pos,
                                         @NonNull
                                         char[] c)
                                  throws NullPointerException,
                                         IndexOutOfBoundsException

Inserts the contents of the provided character array into this buffer at the specified position.

参数:

pos - The position at which the data is to be inserted.

c - The array whose contents should be inserted into this buffer.

返回:

A reference to this buffer.

抛出:

NullPointerException - If the provided array is null.

IndexOutOfBoundsException - If the specified position is negative or greater than the current length.

insert

@NonNull
public ByteStringBuffer insert(int pos,
                                         @NonNull
                                         char[] c,
                                         int off,
                                         int len)
                                  throws NullPointerException,
                                         IndexOutOfBoundsException

Inserts the specified portion of the provided character array to this buffer at the specified position.

参数:

pos - The position at which the data is to be inserted.

c - The array whose contents should be inserted into this buffer.

off - The offset within the array at which to begin copying data.

len - The number of characters to copy.

返回:

A reference to this buffer.

抛出:

NullPointerException - If the provided array is null.

IndexOutOfBoundsException - If the specified position is negative or greater than the current length, if the offset or length are negative, if the offset plus the length is beyond the end of the provided array.

insert

@NonNull
public ByteStringBuffer insert(int pos,
                                         @NonNull
                                         CharSequence s)
                                  throws NullPointerException,
                                         IndexOutOfBoundsException

Inserts the provided character sequence to this buffer at the specified position.

参数:

pos - The position at which the data is to be inserted.

s - The character sequence to insert into this buffer.

返回:

A reference to this buffer.

抛出:

NullPointerException - If the provided character sequence is null.

IndexOutOfBoundsException - If the specified position is negative or greater than the current length.

insert

@NonNull
public ByteStringBuffer insert(int pos,
                                         int i)
                                  throws IndexOutOfBoundsException

Inserts the provided integer value to this buffer.

参数:

pos - The position at which the value is to be inserted.

i - The integer value to be inserted into this buffer.

返回:

A reference to this buffer.

抛出:

IndexOutOfBoundsException - If the specified position is negative or greater than the current length.

insert

@NonNull
public ByteStringBuffer insert(int pos,
                                         long l)
                                  throws IndexOutOfBoundsException

Inserts the provided long value to this buffer.

参数:

pos - The position at which the value is to be inserted.

l - The long value to be inserted into this buffer.

返回:

A reference to this buffer.

抛出:

IndexOutOfBoundsException - If the specified position is negative or greater than the current length.

insertCodePoint

@NonNull
public ByteStringBuffer insertCodePoint(int pos,
                                                  int codePoint)
                                           throws IndexOutOfBoundsException

Inserts the provided code point into this buffer.

参数:

pos - The position at which the code point is to be inserted.

codePoint - The code point to be inserted.

返回:

A reference to this buffer.

抛出:

IndexOutOfBoundsException - If the specified position is negative or greater than the current length.

delete

@NonNull
public ByteStringBuffer delete(int len)
                                  throws IndexOutOfBoundsException

Deletes the specified number of bytes from the beginning of the buffer.

参数:

len - The number of bytes to delete.

返回:

A reference to this buffer.

抛出:

IndexOutOfBoundsException - If the specified length is negative, or if it is greater than the number of bytes currently contained in this buffer.

delete

@NonNull
public ByteStringBuffer delete(int off,
                                         int len)
                                  throws IndexOutOfBoundsException

Deletes the indicated number of bytes from the specified location in the buffer.

参数:

off - The position in the buffer at which the content to delete begins.

len - The number of bytes to remove from the buffer.

返回:

A reference to this buffer.

抛出:

IndexOutOfBoundsException - If the offset or length is negative, or if the combination of the offset and length is greater than the end of the content in the buffer.

set

@NonNull
public ByteStringBuffer set(boolean b)

Sets the contents of this buffer to include only the provided boolean value.

参数:

b - The boolean value to use as the content for this buffer.

返回:

A reference to this buffer.

set

@NonNull
public ByteStringBuffer set(byte b)

Sets the contents of this buffer to include only the provided byte.

参数:

b - The byte to use as the content for this buffer.

返回:

A reference to this buffer.

set

@NonNull
public ByteStringBuffer set(@NonNull
                                      byte[] b)
                               throws NullPointerException

Sets the contents of this buffer to the contents of the provided byte array.

参数:

b - The byte array containing the content to use for this buffer.

返回:

A reference to this buffer.

抛出:

NullPointerException - If the provided array is null.

set

@NonNull
public ByteStringBuffer set(@NonNull
                                      byte[] b,
                                      int off,
                                      int len)
                               throws NullPointerException,
                                      IndexOutOfBoundsException

Sets the contents of this buffer to the specified portion of the provided byte array.

参数:

b - The byte array containing the content to use for this buffer.

off - The offset within the array at which to begin copying data.

len - The number of bytes to copy.

返回:

A reference to this buffer.

抛出:

NullPointerException - If the provided array is null.

IndexOutOfBoundsException - If the offset or length are negative, if the offset plus the length is beyond the end of the provided array.

set

@NonNull
public ByteStringBuffer set(@NonNull
                                      ByteString b)
                               throws NullPointerException

Sets the contents of this buffer to the contents of the provided byte string.

参数:

b - The byte string that should be used as the content for this buffer.

返回:

A reference to this buffer.

抛出:

NullPointerException - If the provided byte string is null.

set

@NonNull
public ByteStringBuffer set(@NonNull
                                      ByteStringBuffer buffer)
                               throws NullPointerException

Sets the contents of this buffer to the contents of the provided byte string buffer.

参数:

buffer - The buffer whose contents should be used as the content for this buffer.

返回:

A reference to this buffer.

抛出:

NullPointerException - If the provided buffer is null.

set

@NonNull
public ByteStringBuffer set(char c)

Sets the contents of this buffer to include only the provided character.

参数:

c - The character use as the content for this buffer.

返回:

A reference to this buffer.

set

@NonNull
public ByteStringBuffer set(@NonNull
                                      char[] c)
                               throws NullPointerException

Sets the contents of this buffer to the contents of the provided character array.

参数:

c - The character array containing the content to use for this buffer.

返回:

A reference to this buffer.

抛出:

NullPointerException - If the provided array is null.

set

@NonNull
public ByteStringBuffer set(@NonNull
                                      char[] c,
                                      int off,
                                      int len)
                               throws NullPointerException,
                                      IndexOutOfBoundsException

Sets the contents of this buffer to the specified portion of the provided character array.

参数:

c - The character array containing the content to use for this buffer.

off - The offset within the array at which to begin copying data.

len - The number of characters to copy.

返回:

A reference to this buffer.

抛出:

NullPointerException - If the provided array is null.

IndexOutOfBoundsException - If the offset or length are negative, if the offset plus the length is beyond the end of the provided array.

set

@NonNull
public ByteStringBuffer set(@NonNull
                                      CharSequence s)
                               throws NullPointerException

Sets the contents of this buffer to the specified portion of the provided character sequence.

参数:

s - The character sequence to use as the content for this buffer.

返回:

A reference to this buffer.

抛出:

NullPointerException - If the provided character sequence is null.

set

@NonNull
public ByteStringBuffer set(int i)

Sets the contents of this buffer to include only the provided integer value.

参数:

i - The integer value to use as the content for this buffer.

返回:

A reference to this buffer.

set

@NonNull
public ByteStringBuffer set(long l)

Sets the contents of this buffer to include only the provided long value.

参数:

l - The long value to use as the content for this buffer.

返回:

A reference to this buffer.

clear

@NonNull
public ByteStringBuffer clear()

Clears the contents of this buffer.

返回:

A reference to this buffer.

clear

@NonNull
public ByteStringBuffer clear(boolean zero)

Clears the contents of this buffer.

参数:

zero - Indicates whether to overwrite the content of the backing array with all zeros in order to wipe out any sensitive data it may contain.

返回:

A reference to this buffer.

getBackingArray

@NonNull
public byte[] getBackingArray()

Retrieves the current backing array for this buffer. The data will begin at position 0 and will contain length() bytes.

返回:

The current backing array for this buffer.

isEmpty

public boolean isEmpty()

Indicates whether this buffer is currently empty.

返回:

true if this buffer is currently empty, or false if not.

length

public int length()

Retrieves the number of bytes contained in this buffer.

返回:

The number of bytes contained in this buffer.

setLength

public void setLength(int length)
               throws IndexOutOfBoundsException

Sets the length of this buffer to the specified value. If the new length is greater than the current length, the value will be padded with zeroes.

参数:

length - The new length to use for the buffer. It must be greater than or equal to zero.

抛出:

IndexOutOfBoundsException - If the provided length is negative.

capacity

public int capacity()

Returns the current capacity for this buffer.

返回:

The current capacity for this buffer.

ensureCapacity

public void ensureCapacity(int minimumCapacity)

Ensures that the total capacity of this buffer is at least equal to the specified size.

参数:

minimumCapacity - The minimum capacity for this buffer.

setCapacity

public void setCapacity(int capacity)
                 throws IndexOutOfBoundsException

Sets the capacity equal to the specified value. If the provided capacity is less than the current length, then the length will be reduced to the new capacity.

参数:

capacity - The new capacity for this buffer. It must be greater than or equal to zero.

抛出:

IndexOutOfBoundsException - If the provided capacity is negative.

trimToSize

@NonNull
public ByteStringBuffer trimToSize()

Trims the backing array to the minimal size required for this buffer.

返回:

A reference to this buffer.

byteAt

public byte byteAt(int offset)
            throws IndexOutOfBoundsException

Retrieves the byte at the specified offset in the buffer.

参数:

offset - The offset of the byte to read. It must be between greater than or equal to zero and less than length().

返回:

The byte at the specified offset in the buffer.

抛出:

IndexOutOfBoundsException - If the provided offset is negative or greater than or equal to the length of the buffer.

bytesAt

@NonNull
public byte[] bytesAt(int offset,
                                int length)
                         throws IndexOutOfBoundsException

Retrieves the specified subset of bytes from the buffer.

参数:

offset - The offset of the first byte to retrieve. It must be greater than or equal to zero and less than length().

length - The number of bytes to retrieve. It must be greater than or equal to zero, and the sum of offset and length must be less than or equal to length().

返回:

A byte array containing the specified subset of bytes from the buffer.

抛出:

IndexOutOfBoundsException - If either the offset or the length is negative, or if the offsset plus the length is greater than or equal to the length of the buffer.

startsWith

public boolean startsWith(@NonNull
                          byte[] bytes)

Indicates whether this buffer starts with the specified set of bytes.

参数:

bytes - The bytes for which to make the determination.

返回:

true if this buffer starts with the specified set of bytes, or false if not.

endsWith

public boolean endsWith(@NonNull
                        byte[] bytes)

Indicates whether this buffer ends with the specified set of bytes.

参数:

bytes - The bytes for which to make the determination.

返回:

true if this buffer ends with the specified set of bytes, or false if not.

toByteArray

@NonNull
public byte[] toByteArray()

Returns a new byte array with the content from this buffer.

返回:

A byte array containing the content from this buffer.

toByteString

@NonNull
public ByteString toByteString()

Returns a new byte string with the content from this buffer.

返回:

A byte string with the content from this buffer.

asInputStream

@NonNull
public InputStream asInputStream()

Creates an input stream that may be used to read content from this buffer. This buffer should not be altered while the input stream is being used.

返回:

An input stream that may be used to read content from this buffer.

readFrom

public void readFrom(@NonNull
                     File file)
              throws IOException

Reads the contents of the specified file into this buffer, appending it to the end of the buffer.

参数:

file - The file to be read.

抛出:

IOException - If an unexpected problem occurs.

readFrom

public void readFrom(@NonNull
                     InputStream inputStream)
              throws IOException

Reads data from the provided input stream into this buffer, appending it to the end of the buffer. The entire content of the input stream will be read, but the input stream will not be closed.

参数:

inputStream - The input stream from which data is to be read.

抛出:

IOException - If an unexpected problem occurs.

write

public void write(@NonNull
                  OutputStream outputStream)
           throws IOException

Writes the contents of this byte string buffer to the provided output stream.

参数:

outputStream - The output stream to which the data should be written.

抛出:

IOException - If a problem occurs while writing to the provided output stream.

hashCode

public int hashCode()

Retrieves a hash code for this byte array.

覆盖:

hashCode 在类中 Object

返回:

A hash code for this byte array.

equals

public boolean equals(@Nullable
                      Object o)

Indicates whether the provided object is a byte string buffer with contents that are identical to that of this buffer.

覆盖:

equals 在类中 Object

参数:

o - The object for which to make the determination.

返回:

true if the provided object is considered equal to this buffer, or false if not.

duplicate

@NonNull
public ByteStringBuffer duplicate()

Creates a duplicate of this byte string buffer. It will have identical content but with a different backing array. Changes to this byte string buffer will not impact the duplicate, and vice-versa.

返回:

A duplicate of this byte string buffer.

toString

@NonNull
public String toString()

Retrieves a string representation of the contents for this buffer.

覆盖:

toString 在类中 Object

返回:

A string representation of the contents for this buffer.