Modifier and Type	Class and Description
private static class	FastByteArrayOutputStream.FastByteArrayInputStream An implementation of `java.io.InputStream` that reads from a given `FastByteArrayOutputStream`.

Modifier and Type	Field and Description
private int	alreadyBufferedSize
private final Deque<byte[]>	buffers
private boolean	closed
private static final int	DEFAULT_BLOCK_SIZE
private int	index
private final int	initialBlockSize
private int	nextBlockSize

Access	Constructor and Description
public	FastByteArrayOutputStream() Create a new `FastByteArrayOutputStream` with the default initial capacity of 256 bytes.
public	FastByteArrayOutputStream(int the initial buffer size in bytes initialBlockSize) Create a new `FastByteArrayOutputStream` with the specified initial capacity.

Method Summary

Modifier and Type	Method and Description
private void	addBuffer(int minCapacity) Create a new buffer and store it in the ArrayDeque.
public void	close() Overrides java.io.OutputStream.close. Implements java.io.Closeable.close. Closes this output stream and releases any system resources associated with this stream.
public InputStream	Returns: `InputStream` of the contents of this `FastByteArrayOutputStream` getInputStream() Get an `InputStream` to retrieve the contents of this `FastByteArrayOutputStream`.
private static int	nextPowerOf2(int val) Get the next power of 2 of a number (ex, the next power of 2 of 119 is 128).
public void	reset() Reset the contents of this `FastByteArrayOutputStream`.
public void	resize(int the desired size of the buffer targetCapacity) Resize the internal buffer size to the specified capacity.
public int	size() Return the number of bytes stored in this `FastByteArrayOutputStream`.
public byte[]	Returns: the current contents of this stream as a byte array toByteArray() Create a newly allocated byte array.
public byte[]	Returns: the current contents of this stream as a byte array toByteArrayUnsafe() Convert this stream's contents to a byte array and return the byte array.
public String	Returns: a String decoded from this stream's contents toString() Overrides java.lang.Object.toString. Convert this stream's contents to a string by decoding the bytes using the platform's default character set.
public String	Returns: a String decoded from this stream's contents toString(Charset the `Charset` to use to decode the bytes charset) Convert this stream's contents to a string by decoding the bytes using the specified `Charset`.
public void	write(int the `byte`. datum) Implements abstract java.io.OutputStream.write. Writes the specified byte to this output stream.
public void	write(byte[] the data. data, int the start offset in the data. offset, int the number of bytes to write. length) Overrides java.io.OutputStream.write. Writes `len` bytes from the specified byte array starting at offset `off` to this output stream.
public void	writeTo(OutputStream the OutputStream to write to out) Write the contents of this `FastByteArrayOutputStream` to the given `OutputStream`.

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

Field Detail

alreadyBufferedSize	back to summary
private int alreadyBufferedSize

buffers	back to summary
private final Deque<byte[]> buffers

closed	back to summary
private boolean closed

DEFAULT_BLOCK_SIZE	back to summary
private static final int DEFAULT_BLOCK_SIZE

index	back to summary
private int index

initialBlockSize	back to summary
private final int initialBlockSize

nextBlockSize	back to summary
private int nextBlockSize

FastByteArrayOutputStream	back to summary
public FastByteArrayOutputStream() Create a new `FastByteArrayOutputStream` with the default initial capacity of 256 bytes.

FastByteArrayOutputStream	back to summary
public FastByteArrayOutputStream(int initialBlockSize) Create a new `FastByteArrayOutputStream` with the specified initial capacity. Parameters initialBlockSize:int the initial buffer size in bytes

Method Detail

addBuffer back to summary

addBuffer	back to summary
private void addBuffer(int minCapacity) Create a new buffer and store it in the ArrayDeque. Adds a new buffer that can store at least `minCapacity` bytes.

private void addBuffer(int minCapacity)

Create a new buffer and store it in the ArrayDeque.

Adds a new buffer that can store at least minCapacity bytes.

close back to summary

close	back to summary
public void close() Overrides java.io.OutputStream.close. Implements java.io.Closeable.close. Doc from java.io.OutputStream.close. Closes this output stream and releases any system resources associated with this stream. The general contract of `close` is that it closes the output stream. A closed stream cannot perform output operations and cannot be reopened. Annotations @Override

public void close()

Overrides java.io.OutputStream.close.

Implements java.io.Closeable.close.

Doc from java.io.OutputStream.close.

Closes this output stream and releases any system resources associated with this stream. The general contract of close is that it closes the output stream. A closed stream cannot perform output operations and cannot be reopened.

Annotations

@Override

getInputStream back to summary

getInputStream	back to summary
public InputStream getInputStream() Get an `InputStream` to retrieve the contents of this `FastByteArrayOutputStream`. Note that if any methods are called on this `FastByteArrayOutputStream` (including, but not limited to, any of the write methods, `reset()`, `toByteArray()`, and `toByteArrayUnsafe()`) then the `InputStream`'s behavior is undefined. Returns:InputStream `InputStream` of the contents of this `FastByteArrayOutputStream`

public InputStream getInputStream()

Get an InputStream to retrieve the contents of this FastByteArrayOutputStream.

Note that if any methods are called on this FastByteArrayOutputStream (including, but not limited to, any of the write methods, reset(), toByteArray(), and toByteArrayUnsafe()) then the InputStream's behavior is undefined.

Returns:InputStream: InputStream of the contents of this FastByteArrayOutputStream

nextPowerOf2	back to summary
private static int nextPowerOf2(int val) Get the next power of 2 of a number (ex, the next power of 2 of 119 is 128).

reset back to summary

reset	back to summary
public void reset() Reset the contents of this `FastByteArrayOutputStream`. All currently accumulated output in the output stream is discarded. The output stream can be used again.

public void reset()

Reset the contents of this FastByteArrayOutputStream.

All currently accumulated output in the output stream is discarded. The output stream can be used again.

resize back to summary

resize	back to summary
public void resize(int targetCapacity) Resize the internal buffer size to the specified capacity. Parameters targetCapacity:int the desired size of the buffer Exceptions IllegalArgumentException: if the given capacity is smaller than the actual size of the content stored in the buffer already See Also `FastByteArrayOutputStream#size()`

public void resize(int targetCapacity)

Resize the internal buffer size to the specified capacity.

Parameters

targetCapacity:int: the desired size of the buffer

Exceptions

IllegalArgumentException:: if the given capacity is smaller than the actual size of the content stored in the buffer already

See Also

FastByteArrayOutputStream#size()

size	back to summary
public int size() Return the number of bytes stored in this `FastByteArrayOutputStream`.

toByteArray back to summary

toByteArray	back to summary
public byte[] toByteArray() Create a newly allocated byte array. Its size is the current size of this output stream, and it will contain the valid contents of the internal buffers. Returns:byte[] the current contents of this stream as a byte array See Also `size()`, `toByteArrayUnsafe()`

public byte[] toByteArray()

Create a newly allocated byte array.

Its size is the current size of this output stream, and it will contain the valid contents of the internal buffers.

Returns:byte[]: the current contents of this stream as a byte array
See Also: size(), toByteArrayUnsafe()

toByteArrayUnsafe back to summary

toByteArrayUnsafe	back to summary
public byte[] toByteArrayUnsafe() Convert this stream's contents to a byte array and return the byte array. Also replaces the internal structures with the byte array to conserve memory: if the byte array is being created anyway, we might as well as use it. This approach also means that if this method is called twice without any writes in the interim, the second call is a no-op. This method is "unsafe" as it returns the internal buffer. Callers should not modify the returned buffer. Returns:byte[] the current contents of this stream as a byte array See Also `size()`, `toByteArray()`

public byte[] toByteArrayUnsafe()

Convert this stream's contents to a byte array and return the byte array.

Also replaces the internal structures with the byte array to conserve memory: if the byte array is being created anyway, we might as well as use it. This approach also means that if this method is called twice without any writes in the interim, the second call is a no-op.

This method is "unsafe" as it returns the internal buffer. Callers should not modify the returned buffer.

Returns:byte[]: the current contents of this stream as a byte array
See Also: size(), toByteArray()

toString back to summary

toString	back to summary
public String toString() Overrides java.lang.Object.toString. Convert this stream's contents to a string by decoding the bytes using the platform's default character set. The length of the new `String` is a function of the character set, and hence may not be equal to the size of the buffers. This method always replaces malformed-input and unmappable-character sequences with the default replacement string for the platform's default character set. The java.nio.charset.CharsetDecoder class should be used when more control over the decoding process is required. Returns:String a String decoded from this stream's contents Annotations @Override See Also `toString(Charset)`

public String toString()

Overrides java.lang.Object.toString.

Convert this stream's contents to a string by decoding the bytes using the platform's default character set. The length of the new String is a function of the character set, and hence may not be equal to the size of the buffers.

This method always replaces malformed-input and unmappable-character sequences with the default replacement string for the platform's default character set. The java.nio.charset.CharsetDecoder class should be used when more control over the decoding process is required.

Returns:String

a String decoded from this stream's contents

Annotations

@Override

See Also

toString(Charset)

toString back to summary

toString	back to summary
public String toString(Charset charset) Convert this stream's contents to a string by decoding the bytes using the specified `Charset`. Parameters charset:Charset the `Charset` to use to decode the bytes Returns:String a String decoded from this stream's contents Since 6.1.2 See Also `toString()`

public String toString(Charset charset)

Convert this stream's contents to a string by decoding the bytes using the specified Charset.

Parameters

charset:Charset: the Charset to use to decode the bytes

Returns:String

a String decoded from this stream's contents

Since

6.1.2

See Also

toString()

write back to summary

write	back to summary
public void write(int datum) throws IOException 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. Parameters datum:int the `byte`. Annotations @Override Exceptions IOException: if an I/O error occurs. In particular, an `IOException` may be thrown if the output stream has been closed.

public void write(int datum) throws IOException

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.

Parameters

datum:int: the byte.

Annotations

@Override

Exceptions

IOException:: if an I/O error occurs. In particular, an IOException may be thrown if the output stream has been closed.

write back to summary

write	back to summary
public void write(byte[] data, int offset, int length) throws IOException 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. Parameters data:byte[] the data. offset:int the start offset in the data. length:int the number of bytes to write. Annotations @Override Exceptions IOException: if an I/O error occurs. In particular, an `IOException` is thrown if the output stream is closed.

public void write(byte[] data, int offset, int length) throws IOException

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.

Parameters

data:byte[]: the data.
offset:int: the start offset in the data.
length:int: the number of bytes to write.

Annotations

@Override

Exceptions

IOException:: if an I/O error occurs. In particular, an IOException is thrown if the output stream is closed.

writeTo back to summary

writeTo	back to summary
public void writeTo(OutputStream out) throws IOException Write the contents of this `FastByteArrayOutputStream` to the given `OutputStream`. Parameters out:OutputStream the OutputStream to write to

public void writeTo(OutputStream out) throws IOException

Write the contents of this FastByteArrayOutputStream to the given OutputStream.

Parameters

out:OutputStream: the OutputStream to write to

org.springframework.util back to summary

private final Class FastByteArrayOutputStream.FastByteArrayInputStream

Class Inheritance

extends UpdateMessageDigestInputStream

java.lang.Object
java.io.InputStream
org.springframework.util.UpdateMessageDigestInputStream
org.springframework.util.FastByteArrayOutputStream.FastByteArrayInputStream

An implementation of java.io.InputStream that reads from a given FastByteArrayOutputStream.

Field Summary

Modifier and Type	Field and Description
private final Iterator<byte[]>	buffersIterator
private byte[]	currentBuffer
private int	currentBufferLength
private final FastByteArrayOutputStream	fastByteArrayOutputStream
private int	nextIndexInCurrentBuffer
private int	totalBytesRead

Constructor Summary

Access	Constructor and Description
public	FastByteArrayInputStream(FastByteArrayOutputStream fastByteArrayOutputStream) Create a new `FastByteArrayInputStream` backed by the given `FastByteArrayOutputStream`.

Method Summary

Modifier and Type	Method and Description
public int	available() Overrides java.io.InputStream.available. Returns an estimate of the number of bytes that can be read (or skipped over) from this input stream without blocking, which may be 0, or 0 when end of stream is detected.
public int	read() Implements abstract java.io.InputStream.read. Reads the next byte of data from the input stream.
public int	read(byte[] the buffer into which the data is read. b) Overrides java.io.InputStream.read. Reads some number of bytes from the input stream and stores them into the buffer array `b`.
public int	read(byte[] the buffer into which the data is read. b, int the start offset in array `b` at which the data is written. off, int the maximum number of bytes to read. len) Overrides java.io.InputStream.read. Reads up to `len` bytes of data from the input stream into an array of bytes.
public long	skip(long the number of bytes to be skipped. n) Overrides java.io.InputStream.skip. Skips over and discards `n` bytes of data from this input stream.
private void	updateCurrentBufferLength()
public void	updateMessageDigest(MessageDigest the message digest to update messageDigest) Overrides org.springframework.util.UpdateMessageDigestInputStream.updateMessageDigest. Update the message digest with the remaining bytes in this stream.
public void	updateMessageDigest(MessageDigest the message digest to update messageDigest, int how many bytes to read from this stream and use to update the message digest len) Overrides org.springframework.util.UpdateMessageDigestInputStream.updateMessageDigest. Update the message digest with the next len bytes in this stream.

Field Detail

buffersIterator	back to summary
private final Iterator<byte[]> buffersIterator

currentBuffer	back to summary
private byte[] currentBuffer Annotations @Nullable

currentBufferLength	back to summary
private int currentBufferLength

fastByteArrayOutputStream	back to summary
private final FastByteArrayOutputStream fastByteArrayOutputStream

nextIndexInCurrentBuffer	back to summary
private int nextIndexInCurrentBuffer

totalBytesRead	back to summary
private int totalBytesRead

Constructor Detail

FastByteArrayInputStream	back to summary
public FastByteArrayInputStream(FastByteArrayOutputStream fastByteArrayOutputStream) Create a new `FastByteArrayInputStream` backed by the given `FastByteArrayOutputStream`.

Method Detail

available back to summary

available	back to summary
public int available() Overrides java.io.InputStream.available. Doc from java.io.InputStream.available. Returns an estimate of the number of bytes that can be read (or skipped over) from this input stream without blocking, which may be 0, or 0 when end of stream is detected. The read might be on the same thread or another thread. A single read or skip of this many bytes will not block, but may read or skip fewer bytes. Note that while some implementations of `InputStream` will return the total number of bytes in the stream, many will not. It is never correct to use the return value of this method to allocate a buffer intended to hold all data in this stream. A subclass's implementation of this method may choose to throw an `IOException` if this input stream has been closed by invoking the `close()` method. Returns:int an estimate of the number of bytes that can be read (or skipped over) from this input stream without blocking or `0` when it reaches the end of the input stream. Annotations @Override

public int available()

Overrides java.io.InputStream.available.

Doc from java.io.InputStream.available.

Returns an estimate of the number of bytes that can be read (or skipped over) from this input stream without blocking, which may be 0, or 0 when end of stream is detected. The read might be on the same thread or another thread. A single read or skip of this many bytes will not block, but may read or skip fewer bytes.

Note that while some implementations of InputStream will return the total number of bytes in the stream, many will not. It is never correct to use the return value of this method to allocate a buffer intended to hold all data in this stream.

A subclass's implementation of this method may choose to throw an IOException if this input stream has been closed by invoking the close() method.

Returns:int

an estimate of the number of bytes that can be read (or skipped over) from this input stream without blocking or 0 when it reaches the end of the input stream.

Annotations

@Override

read back to summary

read	back to summary
public int read() Implements abstract java.io.InputStream.read. Doc from java.io.InputStream.read. Reads the next byte of data from the input stream. The value byte is returned as an `int` in the range `0` to `255`. If no byte is available because the end of the stream has been reached, the value `-1` is returned. This method blocks until input data is available, the end of the stream is detected, or an exception is thrown. Returns:int the next byte of data, or `-1` if the end of the stream is reached. Annotations @Override

public int read()

Implements abstract java.io.InputStream.read.

Doc from java.io.InputStream.read.

Reads the next byte of data from the input stream. The value byte is returned as an int in the range 0 to 255. If no byte is available because the end of the stream has been reached, the value -1 is returned. This method blocks until input data is available, the end of the stream is detected, or an exception is thrown.

Returns:int

the next byte of data, or -1 if the end of the stream is reached.

Annotations

@Override

read back to summary

read	back to summary
public int read(byte[] b) Overrides java.io.InputStream.read. Doc from java.io.InputStream.read. Reads some number of bytes from the input stream and stores them into the buffer array `b`. The number of bytes actually read is returned as an integer. This method blocks until input data is available, end of file is detected, or an exception is thrown. If the length of `b` is zero, then no bytes are read and `0` is returned; otherwise, there is an attempt to read at least one byte. If no byte is available because the stream is at the end of the file, the value `-1` is returned; otherwise, at least one byte is read and stored into `b`. The first byte read is stored into element `b[0]`, the next one into `b[1]`, and so on. The number of bytes read is, at most, equal to the length of `b`. Let k be the number of bytes actually read; these bytes will be stored in elements `b[0]` through `b[`k`-1]`, leaving elements `b[`k`]` through `b[b.length-1]` unaffected. Parameters b:byte[] the buffer into which the data is read. Returns:int the total number of bytes read into the buffer, or `-1` if there is no more data because the end of the stream has been reached. Annotations @Override

public int read(byte[] b)

Overrides java.io.InputStream.read.

Doc from java.io.InputStream.read.

Reads some number of bytes from the input stream and stores them into the buffer array b. The number of bytes actually read is returned as an integer. This method blocks until input data is available, end of file is detected, or an exception is thrown.

If the length of b is zero, then no bytes are read and 0 is returned; otherwise, there is an attempt to read at least one byte. If no byte is available because the stream is at the end of the file, the value -1 is returned; otherwise, at least one byte is read and stored into b.

The first byte read is stored into element b[0], the next one into b[1], and so on. The number of bytes read is, at most, equal to the length of b. Let k be the number of bytes actually read; these bytes will be stored in elements b[0] through b[k-1], leaving elements b[k] through b[b.length-1] unaffected.

Parameters

b:byte[]: the buffer into which the data is read.

Returns:int

the total number of bytes read into the buffer, or -1 if there is no more data because the end of the stream has been reached.

Annotations

@Override

read back to summary

read	back to summary
public int read(byte[] b, int off, int len) Overrides java.io.InputStream.read. Doc from java.io.InputStream.read. Reads up to `len` bytes of data from the input stream into an array of bytes. An attempt is made to read as many as `len` bytes, but a smaller number may be read. The number of bytes actually read is returned as an integer. This method blocks until input data is available, end of file is detected, or an exception is thrown. If `len` is zero, then no bytes are read and `0` is returned; otherwise, there is an attempt to read at least one byte. If no byte is available because the stream is at end of file, the value `-1` is returned; otherwise, at least one byte is read and stored into `b`. The first byte read is stored into element `b[off]`, the next one into `b[off+1]`, and so on. The number of bytes read is, at most, equal to `len`. Let k be the number of bytes actually read; these bytes will be stored in elements `b[off]` through `b[off+`k`-1]`, leaving elements `b[off+`k`]` through `b[off+len-1]` unaffected. In every case, elements `b[0]` through `b[off-1]` and elements `b[off+len]` through `b[b.length-1]` are unaffected. Parameters b:byte[] the buffer into which the data is read. off:int the start offset in array `b` at which the data is written. len:int the maximum number of bytes to read. Returns:int the total number of bytes read into the buffer, or `-1` if there is no more data because the end of the stream has been reached. Annotations @Override

public int read(byte[] b, int off, int len)

Overrides java.io.InputStream.read.

Doc from java.io.InputStream.read.

Reads up to len bytes of data from the input stream into an array of bytes. An attempt is made to read as many as len bytes, but a smaller number may be read. The number of bytes actually read is returned as an integer.

This method blocks until input data is available, end of file is detected, or an exception is thrown.

If len is zero, then no bytes are read and 0 is returned; otherwise, there is an attempt to read at least one byte. If no byte is available because the stream is at end of file, the value -1 is returned; otherwise, at least one byte is read and stored into b.

The first byte read is stored into element b[off], the next one into b[off+1], and so on. The number of bytes read is, at most, equal to len. Let k be the number of bytes actually read; these bytes will be stored in elements b[off] through b[off+k-1], leaving elements b[off+k] through b[off+len-1] unaffected.

In every case, elements b[0] through b[off-1] and elements b[off+len] through b[b.length-1] are unaffected.

Parameters

b:byte[]: the buffer into which the data is read.
off:int: the start offset in array b at which the data is written.
len:int: the maximum number of bytes to read.

Returns:int

the total number of bytes read into the buffer, or -1 if there is no more data because the end of the stream has been reached.

Annotations

@Override

skip back to summary

skip	back to summary
public long skip(long n) throws IOException Overrides java.io.InputStream.skip. Doc from java.io.InputStream.skip. Skips over and discards `n` bytes of data from this input stream. The `skip` method may, for a variety of reasons, end up skipping over some smaller number of bytes, possibly `0`. This may result from any of a number of conditions; reaching end of file before `n` bytes have been skipped is only one possibility. The actual number of bytes skipped is returned. If `n` is negative, the `skip` method for class `InputStream` always returns 0, and no bytes are skipped. Subclasses may handle the negative value differently. Parameters n:long the number of bytes to be skipped. Returns:long the actual number of bytes skipped which might be zero. Annotations @Override Exceptions IOException: if an I/O error occurs.

public long skip(long n) throws IOException

Overrides java.io.InputStream.skip.

Doc from java.io.InputStream.skip.

Skips over and discards n bytes of data from this input stream. The skip method may, for a variety of reasons, end up skipping over some smaller number of bytes, possibly 0. This may result from any of a number of conditions; reaching end of file before n bytes have been skipped is only one possibility. The actual number of bytes skipped is returned. If n is negative, the skip method for class InputStream always returns 0, and no bytes are skipped. Subclasses may handle the negative value differently.

Parameters

n:long: the number of bytes to be skipped.

Returns:long

the actual number of bytes skipped which might be zero.

Annotations

@Override

Exceptions

IOException:: if an I/O error occurs.

updateCurrentBufferLength	back to summary
private void updateCurrentBufferLength()

updateMessageDigest	back to summary
public void updateMessageDigest(MessageDigest messageDigest) Overrides org.springframework.util.UpdateMessageDigestInputStream.updateMessageDigest. Update the message digest with the remaining bytes in this stream. Parameters messageDigest:MessageDigest the message digest to update Annotations @Override

updateMessageDigest

back to summary

public void updateMessageDigest(MessageDigest messageDigest)

Overrides org.springframework.util.UpdateMessageDigestInputStream.updateMessageDigest.

Update the message digest with the remaining bytes in this stream.

Parameters

messageDigest:MessageDigest: the message digest to update

Annotations

@Override

updateMessageDigest	back to summary
public void updateMessageDigest(MessageDigest messageDigest, int len) Overrides org.springframework.util.UpdateMessageDigestInputStream.updateMessageDigest. Update the message digest with the next len bytes in this stream. Avoids creating new byte arrays and use internal buffers for performance. Parameters messageDigest:MessageDigest the message digest to update len:int how many bytes to read from this stream and use to update the message digest Annotations @Override

updateMessageDigest

back to summary

public void updateMessageDigest(MessageDigest messageDigest, int len)

Overrides org.springframework.util.UpdateMessageDigestInputStream.updateMessageDigest.

Update the message digest with the next len bytes in this stream. Avoids creating new byte arrays and use internal buffers for performance.

Parameters

messageDigest:MessageDigest: the message digest to update
len:int: how many bytes to read from this stream and use to update the message digest

Annotations

@Override

public Class FastByteArrayOutputStream

Nested and Inner Type Summary

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail

private final Class FastByteArrayOutputStream.FastByteArrayInputStream

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail