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ObjectFastByteArrayWrapper
public class FastByteArrayWrapper
This class implements a byteArray wrapper to speed up working with byte
array. The buffer automatically grows as data is written to it. The data can
be retrieved using toByteArray() and toString().
Closing a ByteArrayOutputStream has no effect. The methods in this class can be called after the stream has been closed without generating an IOException.
| Field Summary | |
|---|---|
protected byte[] |
buf
The buffer where data is stored. |
protected int |
count
The number of valid bytes in the buffer. |
| Constructor Summary | |
|---|---|
FastByteArrayWrapper()
Default constructor Creates a new byte array output stream. |
|
FastByteArrayWrapper(byte[] buffer)
Build a FastByteArrayWrapper with the inner buffer specified as
argument |
|
FastByteArrayWrapper(byte[] buffer,
int count)
Build a FastByteArrayWrapper with the inner buffer specified as
argument. |
|
FastByteArrayWrapper(int size)
Creates a new byte array output stream, with a buffer capacity of the specified size, in bytes. |
|
| Method Summary | |
|---|---|
byte[] |
getByteArray()
Creates a newly allocated byte array. |
void |
reset()
Resets the count field of this byte array wrapper to zero,
so that all currently accumulated values in the byte array is discarded. |
int |
size()
Returns the current size of the buffer. |
String |
toString()
Converts the buffer's contents into a string, translating bytes into characters according to the platform's default character encoding. |
void |
write(byte[] b)
Writes b.length bytes from the specified byte array
starting at offset 0 to this byte array wrapper. |
void |
write(byte[] b,
int off,
int len)
Writes len bytes from the specified byte array starting at
offset off to this byte array wrapper. |
void |
write(int b)
Writes the specified byte to this byte array wrapper. |
| Methods inherited from class Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
| Field Detail |
|---|
protected byte[] buf
protected int count
| Constructor Detail |
|---|
public FastByteArrayWrapper()
public FastByteArrayWrapper(byte[] buffer)
FastByteArrayWrapper with the inner buffer specified as
argument
buffer - the inner buffer used by this FastByteArrayWrapper
public FastByteArrayWrapper(byte[] buffer,
int count)
FastByteArrayWrapper with the inner buffer specified as
argument.
buffer - the inner buffer used by this FastByteArrayWrappercount - the number of valid bytes in the provided bufferpublic FastByteArrayWrapper(int size)
size - the initial size.
IllegalArgumentException - if size is negative.| Method Detail |
|---|
public void write(int b)
b - the byte to be written.
public void write(byte[] b,
int off,
int len)
len bytes from the specified byte array starting at
offset off to this byte array wrapper.
b - the data.off - the start offset in the data.len - the number of bytes to write.
public void write(byte[] b)
throws IOException
b.length bytes from the specified byte array
starting at offset 0 to this byte array wrapper.
b - the data.
IOExceptionpublic void reset()
count field of this byte array wrapper to zero,
so that all currently accumulated values in the byte array is discarded.
public byte[] getByteArray()
ByteArrayOutputStream.size()public int size()
count field, which is the number
of valid bytes in the buffer.ByteArrayOutputStream.countpublic String toString()
toString in class Object
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