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java.lang.Object org.jboss.netty.buffer.AbstractChannelBuffer org.jboss.netty.buffer.ByteBufferBackedChannelBuffer
public class ByteBufferBackedChannelBuffer
A NIO ByteBuffer
based buffer. It is recommended to use ChannelBuffers.directBuffer(int)
and ChannelBuffers.wrappedBuffer(ByteBuffer)
instead of calling the
constructor explicitly.
Constructor Summary | |
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ByteBufferBackedChannelBuffer(ByteBuffer buffer)
Creates a new buffer which wraps the specified buffer's slice. |
Method Summary | |
---|---|
int |
capacity()
Returns the number of bytes (octets) this buffer can contain. |
ChannelBuffer |
copy(int index,
int length)
Returns a copy of this buffer's sub-region. |
ChannelBuffer |
duplicate()
Returns a buffer which shares the whole region of this buffer. |
ChannelBufferFactory |
factory()
Returns the factory which creates a ChannelBuffer whose
type and default ByteOrder are same with this buffer. |
byte |
getByte(int index)
Gets a byte at the specified absolute index in this buffer. |
void |
getBytes(int index,
byte[] dst,
int dstIndex,
int length)
Transfers this buffer's data to the specified destination starting at the specified absolute index . |
void |
getBytes(int index,
ByteBuffer dst)
Transfers this buffer's data to the specified destination starting at the specified absolute index until the destination's position
reaches its limit. |
void |
getBytes(int index,
ChannelBuffer dst,
int dstIndex,
int length)
Transfers this buffer's data to the specified destination starting at the specified absolute index . |
int |
getBytes(int index,
GatheringByteChannel out,
int length)
Transfers this buffer's data to the specified channel starting at the specified absolute index . |
void |
getBytes(int index,
OutputStream out,
int length)
Transfers this buffer's data to the specified stream starting at the specified absolute index . |
int |
getInt(int index)
Gets a 32-bit integer at the specified absolute index in
this buffer. |
long |
getLong(int index)
Gets a 64-bit long integer at the specified absolute index in
this buffer. |
short |
getShort(int index)
Gets a 16-bit short integer at the specified absolute index in
this buffer. |
int |
getUnsignedMedium(int index)
Gets an unsigned 24-bit medium integer at the specified absolute index in this buffer. |
ByteOrder |
order()
Returns the endianness of this buffer. |
void |
setByte(int index,
byte value)
Sets the specified byte at the specified absolute index in this
buffer. |
void |
setBytes(int index,
byte[] src,
int srcIndex,
int length)
Transfers the specified source array's data to this buffer starting at the specified absolute index . |
void |
setBytes(int index,
ByteBuffer src)
Transfers the specified source buffer's data to this buffer starting at the specified absolute index until the source buffer's position
reaches its limit. |
void |
setBytes(int index,
ChannelBuffer src,
int srcIndex,
int length)
Transfers the specified source buffer's data to this buffer starting at the specified absolute index . |
int |
setBytes(int index,
InputStream in,
int length)
Transfers the content of the specified source stream to this buffer starting at the specified absolute index . |
int |
setBytes(int index,
ScatteringByteChannel in,
int length)
Transfers the content of the specified source channel to this buffer starting at the specified absolute index . |
void |
setInt(int index,
int value)
Sets the specified 32-bit integer at the specified absolute index in this buffer. |
void |
setLong(int index,
long value)
Sets the specified 64-bit long integer at the specified absolute index in this buffer. |
void |
setMedium(int index,
int value)
Sets the specified 24-bit medium integer at the specified absolute index in this buffer. |
void |
setShort(int index,
short value)
Sets the specified 16-bit short integer at the specified absolute index in this buffer. |
ChannelBuffer |
slice(int index,
int length)
Returns a slice of this buffer's sub-region. |
ByteBuffer |
toByteBuffer(int index,
int length)
Converts this buffer's sub-region into a NIO buffer. |
String |
toString(int index,
int length,
String charsetName)
Decodes this buffer's sub-region into a string with the specified character set name. |
Methods inherited from class java.lang.Object |
---|
clone, finalize, getClass, notify, notifyAll, wait, wait, wait |
Constructor Detail |
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public ByteBufferBackedChannelBuffer(ByteBuffer buffer)
Method Detail |
---|
public ChannelBufferFactory factory()
ChannelBuffer
ChannelBuffer
whose
type and default ByteOrder
are same with this buffer.
public ByteOrder order()
ChannelBuffer
public int capacity()
ChannelBuffer
public byte getByte(int index)
ChannelBuffer
index
in this buffer.
This method does not modify readerIndex
or writerIndex
of
this buffer.
public short getShort(int index)
ChannelBuffer
index
in
this buffer. This method does not modify readerIndex
or
writerIndex
of this buffer.
public int getUnsignedMedium(int index)
ChannelBuffer
index
in this buffer. This method does not modify
readerIndex
or writerIndex
of this buffer.
public int getInt(int index)
ChannelBuffer
index
in
this buffer. This method does not modify readerIndex
or
writerIndex
of this buffer.
public long getLong(int index)
ChannelBuffer
index
in
this buffer. This method does not modify readerIndex
or
writerIndex
of this buffer.
public void getBytes(int index, ChannelBuffer dst, int dstIndex, int length)
ChannelBuffer
index
.
This method does not modify readerIndex
or writerIndex
of both the source (i.e. this
) and the destination.
dstIndex
- the first index of the destinationlength
- the number of bytes to transferpublic void getBytes(int index, byte[] dst, int dstIndex, int length)
ChannelBuffer
index
.
This method does not modify readerIndex
or writerIndex
of this buffer.
dstIndex
- the first index of the destinationlength
- the number of bytes to transferpublic void getBytes(int index, ByteBuffer dst)
ChannelBuffer
index
until the destination's position
reaches its limit.
This method does not modify readerIndex
or writerIndex
of
this buffer while the destination's position
will be increased.
public void setByte(int index, byte value)
ChannelBuffer
index
in this
buffer.
This method does not modify readerIndex
or writerIndex
of
this buffer.
public void setShort(int index, short value)
ChannelBuffer
index
in this buffer.
This method does not modify readerIndex
or writerIndex
of
this buffer.
public void setMedium(int index, int value)
ChannelBuffer
index
in this buffer. Please note that the most significant
byte is ignored in the specified value.
This method does not modify readerIndex
or writerIndex
of
this buffer.
public void setInt(int index, int value)
ChannelBuffer
index
in this buffer.
This method does not modify readerIndex
or writerIndex
of
this buffer.
public void setLong(int index, long value)
ChannelBuffer
index
in this buffer.
This method does not modify readerIndex
or writerIndex
of
this buffer.
public void setBytes(int index, ChannelBuffer src, int srcIndex, int length)
ChannelBuffer
index
.
This method does not modify readerIndex
or writerIndex
of both the source (i.e. this
) and the destination.
srcIndex
- the first index of the sourcelength
- the number of bytes to transferpublic void setBytes(int index, byte[] src, int srcIndex, int length)
ChannelBuffer
index
.
This method does not modify readerIndex
or writerIndex
of
this buffer.
public void setBytes(int index, ByteBuffer src)
ChannelBuffer
index
until the source buffer's position
reaches its limit.
This method does not modify readerIndex
or writerIndex
of
this buffer.
public void getBytes(int index, OutputStream out, int length) throws IOException
ChannelBuffer
index
.
This method does not modify readerIndex
or writerIndex
of
this buffer.
length
- the number of bytes to transfer
IOException
- if the specified stream threw an exception during I/Opublic int getBytes(int index, GatheringByteChannel out, int length) throws IOException
ChannelBuffer
index
.
This method does not modify readerIndex
or writerIndex
of
this buffer.
length
- the maximum number of bytes to transfer
IOException
- if the specified channel threw an exception during I/Opublic int setBytes(int index, InputStream in, int length) throws IOException
ChannelBuffer
index
.
This method does not modify readerIndex
or writerIndex
of
this buffer.
length
- the number of bytes to transfer
-1
if the specified channel is closed.
IOException
- if the specified stream threw an exception during I/Opublic int setBytes(int index, ScatteringByteChannel in, int length) throws IOException
ChannelBuffer
index
.
This method does not modify readerIndex
or writerIndex
of
this buffer.
length
- the maximum number of bytes to transfer
-1
if the specified channel is closed.
IOException
- if the specified channel threw an exception during I/Opublic ByteBuffer toByteBuffer(int index, int length)
ChannelBuffer
readerIndex
or writerIndex
of
this buffer.
public String toString(int index, int length, String charsetName)
ChannelBuffer
readerIndex
or writerIndex
of
this buffer.
public ChannelBuffer slice(int index, int length)
ChannelBuffer
readerIndex
or writerIndex
of
this buffer.
public ChannelBuffer duplicate()
ChannelBuffer
buf.slice(0, buf.capacity())
.
This method does not modify readerIndex
or writerIndex
of
this buffer.
public ChannelBuffer copy(int index, int length)
ChannelBuffer
readerIndex
or writerIndex
of
this buffer.
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