org.apache.activemq.artemis.core.buffers.impl

Class ResetLimitWrappedActiveMQBuffer

java.lang.Object

org.apache.activemq.artemis.core.buffers.impl.ChannelBufferWrapper

org.apache.activemq.artemis.core.buffers.impl.ResetLimitWrappedActiveMQBuffer

All Implemented Interfaces:

DataInput, ActiveMQBuffer

public final class ResetLimitWrappedActiveMQBuffer
extends ChannelBufferWrapper

A ResetLimitWrappedActiveMQBuffer TODO: Move this to commons

Field Summary

Fields inherited from class org.apache.activemq.artemis.core.buffers.impl.ChannelBufferWrapper

buffer

Constructor Summary

Constructors

Constructor and Description
ResetLimitWrappedActiveMQBuffer(int limit, ActiveMQBuffer buffer, MessageInternal message)
ResetLimitWrappedActiveMQBuffer(int limit, io.netty.buffer.ByteBuf buffer, MessageInternal message)

Method Summary

Modifier and Type	Method and Description
void	clear() Sets the readerIndex and writerIndex of this buffer to 0.
void	readerIndex(int readerIndex) Sets the readerIndex of this buffer.
void	resetReaderIndex() Repositions the current readerIndex to the marked readerIndex in this buffer.
void	resetWriterIndex() Repositions the current writerIndex to the marked writerIndex in this buffer.
void	setBuffer(ActiveMQBuffer buffer)
void	setByte(int index, byte value) Sets the specified byte at the specified absolute index in this buffer.
void	setBytes(int index, ActiveMQBuffer src) Transfers the specified source buffer's data to this buffer starting at the specified absolute index until the destination becomes unreadable.
void	setBytes(int index, ActiveMQBuffer src, int length) Transfers the specified source buffer's data to this buffer starting at the specified absolute index.
void	setBytes(int index, ActiveMQBuffer src, int srcIndex, int length) Transfers the specified source buffer's data to this buffer starting at the specified absolute index.
void	setBytes(int index, byte[] src) Transfers the specified source array's data to this buffer starting at the specified absolute index.
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	setChar(int index, char value) Sets the specified char at the specified absolute index in this buffer.
void	setDouble(int index, double value) Sets the specified double at the specified absolute index in this buffer.
void	setFloat(int index, float value) Sets the specified float at the specified absolute index in this buffer.
void	setIndex(int readerIndex, int writerIndex) Sets the readerIndex and writerIndex of this buffer in one shot.
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	setMessage(MessageInternal message) We need to turn of notifications of body changes on reset on the server side when dealing with AMQP conversions, for that reason this method will set the message to null here
void	setShort(int index, short value) Sets the specified 16-bit short integer at the specified absolute index in this buffer.
void	writeBoolean(boolean val) Sets the specified boolean at the current writerIndex
void	writeByte(byte value) Sets the specified byte at the current writerIndex and increases the writerIndex by 1 in this buffer.
void	writeBytes(ActiveMQBuffer src, int length) Transfers the specified source buffer's data to this buffer starting at the current writerIndex and increases the writerIndex by the number of the transferred bytes (= length).
void	writeBytes(ActiveMQBuffer src, int srcIndex, int length) Transfers the specified source buffer's data to this buffer starting at the current writerIndex and increases the writerIndex by the number of the transferred bytes (= length).
void	writeBytes(byte[] src) Transfers the specified source array's data to this buffer starting at the current writerIndex and increases the writerIndex by the number of the transferred bytes (= src.length).
void	writeBytes(byte[] src, int srcIndex, int length) Transfers the specified source array's data to this buffer starting at the current writerIndex and increases the writerIndex by the number of the transferred bytes (= length).
void	writeBytes(ByteBuffer src) Transfers the specified source buffer's data to this buffer starting at the current writerIndex until the source buffer's position reaches its limit, and increases the writerIndex by the number of the transferred bytes.
void	writeBytes(io.netty.buffer.ByteBuf src, int srcIndex, int length) Transfers the specified source buffer's data to this buffer starting at the current writerIndex until the source buffer's position reaches its limit, and increases the writerIndex by the number of the transferred bytes.
void	writeChar(char chr) Sets the specified char at the current writerIndex and increases the writerIndex by 2 in this buffer.
void	writeDouble(double value) Sets the specified double at the current writerIndex and increases the writerIndex by 8 in this buffer.
void	writeFloat(float value) Sets the specified float at the current writerIndex and increases the writerIndex by 4 in this buffer.
void	writeInt(int value) Sets the specified 32-bit integer at the current writerIndex and increases the writerIndex by 4 in this buffer.
void	writeLong(long value) Sets the specified 64-bit long integer at the current writerIndex and increases the writerIndex by 8 in this buffer.
void	writeNullableSimpleString(SimpleString val) Sets the specified SimpleString (potentially null) at the current writerIndex
void	writeNullableString(String val) Sets the specified String (potentially null) at the current writerIndex
void	writerIndex(int writerIndex) Sets the writerIndex of this buffer.
void	writeShort(short value) Sets the specified 16-bit short integer at the current writerIndex and increases the writerIndex by 2 in this buffer.
void	writeSimpleString(SimpleString val) Sets the specified non-null SimpleString at the current writerIndex
void	writeString(String val) Sets the specified non-null String at the current writerIndex
void	writeUTF(String utf) Sets the specified UTF-8 String at the current writerIndex

Methods inherited from class org.apache.activemq.artemis.core.buffers.impl.ChannelBufferWrapper

byteBuf, capacity, copy, copy, discardReadBytes, duplicate, getByte, getBytes, getBytes, getBytes, getBytes, getBytes, getBytes, getChar, getDouble, getFloat, getInt, getLong, getShort, getUnsignedByte, getUnsignedInt, getUnsignedShort, markReaderIndex, markWriterIndex, readable, readableBytes, readBoolean, readByte, readBytes, readBytes, readBytes, readBytes, readBytes, readBytes, readBytes, readChar, readDouble, readerIndex, readFloat, readFully, readFully, readInt, readLine, readLong, readNullableSimpleString, readNullableString, readShort, readSimpleString, readSlice, readString, readUnsignedByte, readUnsignedInt, readUnsignedShort, readUTF, release, skipBytes, slice, slice, toByteBuffer, toByteBuffer, unwrap, writable, writableBytes, writerIndex

Methods inherited from class java.lang.Object

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

Constructor Detail

ResetLimitWrappedActiveMQBuffer

public ResetLimitWrappedActiveMQBuffer(int limit,
                                       ActiveMQBuffer buffer,
                                       MessageInternal message)

ResetLimitWrappedActiveMQBuffer

public ResetLimitWrappedActiveMQBuffer(int limit,
                                       io.netty.buffer.ByteBuf buffer,
                                       MessageInternal message)

Method Detail

setMessage

public void setMessage(MessageInternal message)

We need to turn of notifications of body changes on reset on the server side when dealing with AMQP conversions, for that reason this method will set the message to null here

Parameters:

message -

setBuffer

public void setBuffer(ActiveMQBuffer buffer)

clear

public void clear()

Description copied from interface: ActiveMQBuffer

Sets the readerIndex and writerIndex of this buffer to 0. This method is identical to setIndex(0, 0).

Please note that the behavior of this method is different from that of NIO buffer, which sets the limit to the capacity of the buffer.

Specified by:

clear in interface ActiveMQBuffer

Overrides:

clear in class ChannelBufferWrapper

readerIndex

public void readerIndex(int readerIndex)

Description copied from interface: ActiveMQBuffer

Sets the readerIndex of this buffer.

Specified by:

readerIndex in interface ActiveMQBuffer

Overrides:

readerIndex in class ChannelBufferWrapper

Parameters:

readerIndex - The reader's index The reader infex

resetReaderIndex

public void resetReaderIndex()

Description copied from interface: ActiveMQBuffer

Repositions the current readerIndex to the marked readerIndex in this buffer.

Specified by:

resetReaderIndex in interface ActiveMQBuffer

Overrides:

resetReaderIndex in class ChannelBufferWrapper

resetWriterIndex

public void resetWriterIndex()

Description copied from interface: ActiveMQBuffer

Repositions the current writerIndex to the marked writerIndex in this buffer.

Specified by:

resetWriterIndex in interface ActiveMQBuffer

Overrides:

resetWriterIndex in class ChannelBufferWrapper

setIndex

public void setIndex(int readerIndex,
                     int writerIndex)

Description copied from interface: ActiveMQBuffer

Sets the readerIndex and writerIndex of this buffer in one shot. This method is useful when you have to worry about the invocation order of ActiveMQBuffer.readerIndex(int) and ActiveMQBuffer.writerIndex(int) methods. For example, the following code will fail:

 // Create a buffer whose readerIndex, writerIndex and capacity are
 // 0, 0 and 8 respectively.
 ChannelBuffer buf = ChannelBuffers.buffer(8);

 // IndexOutOfBoundsException is thrown because the specified
 // readerIndex (2) cannot be greater than the current writerIndex (0).
 buf.readerIndex(2);
 buf.writerIndex(4);
 

The following code will also fail:

 // Create a buffer whose readerIndex, writerIndex and capacity are
 // 0, 8 and 8 respectively.
 ChannelBuffer buf = ChannelBuffers.wrappedBuffer(new byte[8]);

 // readerIndex becomes 8.
 buf.readLong();

 // IndexOutOfBoundsException is thrown because the specified
 // writerIndex (4) cannot be less than the current readerIndex (8).
 buf.writerIndex(4);
 buf.readerIndex(2);
 

By contrast, ActiveMQBuffer.setIndex(int, int) guarantees that it never throws an IndexOutOfBoundsException as long as the specified indexes meet basic constraints, regardless what the current index values of the buffer are:

 // No matter what the current state of the buffer is, the following
 // call always succeeds as long as the capacity of the buffer is not
 // less than 4.
 buf.setIndex(2, 4);
 

Specified by:

setIndex in interface ActiveMQBuffer

Overrides:

setIndex in class ChannelBufferWrapper

Parameters:

readerIndex - The reader's index

writerIndex - The writer's index

writerIndex

public void writerIndex(int writerIndex)

Description copied from interface: ActiveMQBuffer

Sets the writerIndex of this buffer.

Specified by:

writerIndex in interface ActiveMQBuffer

Overrides:

writerIndex in class ChannelBufferWrapper

Parameters:

writerIndex - The writer's index

setByte

public void setByte(int index,
                    byte value)

Description copied from interface: ActiveMQBuffer

Sets the specified byte at the specified absolute index in this buffer. This method does not modify readerIndex or writerIndex of this buffer.

Specified by:

setByte in interface ActiveMQBuffer

Overrides:

setByte in class ChannelBufferWrapper

Parameters:

index - Index into the buffer

value - The specified byte

setBytes

public void setBytes(int index,
                     byte[] src,
                     int srcIndex,
                     int length)

Description copied from interface: ActiveMQBuffer

Transfers the specified source array's data to this buffer starting at the specified absolute index. This method does not modify readerIndex or writerIndex of this buffer.

Specified by:

setBytes in interface ActiveMQBuffer

Overrides:

setBytes in class ChannelBufferWrapper

Parameters:

index - Index into the buffer

src - The source buffer

srcIndex - The source buffer index

length - The number of bytes to transfer

setBytes

public void setBytes(int index,
                     byte[] src)

Description copied from interface: ActiveMQBuffer

Transfers the specified source array's data to this buffer starting at the specified absolute index. This method does not modify readerIndex or writerIndex of this buffer.

Specified by:

setBytes in interface ActiveMQBuffer

Overrides:

setBytes in class ChannelBufferWrapper

Parameters:

index - Index into the buffer

src - The source buffer

setBytes

public void setBytes(int index,
                     ByteBuffer src)

Description copied from interface: ActiveMQBuffer

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. This method does not modify readerIndex or writerIndex of this buffer.

Specified by:

setBytes in interface ActiveMQBuffer

Overrides:

setBytes in class ChannelBufferWrapper

Parameters:

index - Index into the buffer

src - The source buffer

setBytes

public void setBytes(int index,
                     ActiveMQBuffer src,
                     int srcIndex,
                     int length)

Description copied from interface: ActiveMQBuffer

Transfers the specified source buffer's data to this buffer starting at the specified absolute index. This method does not modify readerIndex or writerIndex of both the source (i.e. this) and the destination.

Specified by:

setBytes in interface ActiveMQBuffer

Overrides:

setBytes in class ChannelBufferWrapper

Parameters:

index - Index into the buffer

src - The source bufferIndex the first index of the source

srcIndex - The source buffer index

length - The number of bytes to transfer

setBytes

public void setBytes(int index,
                     ActiveMQBuffer src,
                     int length)

Description copied from interface: ActiveMQBuffer

Transfers the specified source buffer's data to this buffer starting at the specified absolute index. This method is basically same with ActiveMQBuffer.setBytes(int, ActiveMQBuffer, int, int), except that this method increases the readerIndex of the source buffer by the number of the transferred bytes while ActiveMQBuffer.getBytes(int, ActiveMQBuffer, int, int) does not. This method does not modify readerIndex or writerIndex of the source buffer (i.e. this).

Specified by:

setBytes in interface ActiveMQBuffer

Overrides:

setBytes in class ChannelBufferWrapper

Parameters:

index - Index into the buffer

src - The source buffer

length - the number of bytes to transfer

setBytes

public void setBytes(int index,
                     ActiveMQBuffer src)

Description copied from interface: ActiveMQBuffer

Transfers the specified source buffer's data to this buffer starting at the specified absolute index until the destination becomes unreadable. This method is basically same with ActiveMQBuffer.setBytes(int, ActiveMQBuffer, int, int), except that this method increases the readerIndex of the source buffer by the number of the transferred bytes while ActiveMQBuffer.getBytes(int, ActiveMQBuffer, int, int) does not. This method does not modify readerIndex or writerIndex of the source buffer (i.e. this).

Specified by:

setBytes in interface ActiveMQBuffer

Overrides:

setBytes in class ChannelBufferWrapper

Parameters:

index - Index into the buffer

src - The source buffer

setChar

public void setChar(int index,
                    char value)

Description copied from interface: ActiveMQBuffer

Sets the specified char at the specified absolute index in this buffer. This method does not modify readerIndex or writerIndex of this buffer.

Specified by:

setChar in interface ActiveMQBuffer

Overrides:

setChar in class ChannelBufferWrapper

Parameters:

index - Index into the buffer

value - The specified char

setDouble

public void setDouble(int index,
                      double value)

Description copied from interface: ActiveMQBuffer

Sets the specified double at the specified absolute index in this buffer. This method does not modify readerIndex or writerIndex of this buffer.

Specified by:

setDouble in interface ActiveMQBuffer

Overrides:

setDouble in class ChannelBufferWrapper

Parameters:

index - Index into the buffer

value - The specified double

setFloat

public void setFloat(int index,
                     float value)

Description copied from interface: ActiveMQBuffer

Sets the specified float at the specified absolute index in this buffer. This method does not modify readerIndex or writerIndex of this buffer.

Specified by:

setFloat in interface ActiveMQBuffer

Overrides:

setFloat in class ChannelBufferWrapper

Parameters:

index - Index into the buffer

value - The specified float

setInt

public void setInt(int index,
                   int value)

Description copied from interface: ActiveMQBuffer

Sets the specified 32-bit integer at the specified absolute index in this buffer. This method does not modify readerIndex or writerIndex of this buffer.

Specified by:

setInt in interface ActiveMQBuffer

Overrides:

setInt in class ChannelBufferWrapper

Parameters:

index - Index into the buffer

value - The specified 32-bit integer

setLong

public void setLong(int index,
                    long value)

Description copied from interface: ActiveMQBuffer

Sets the specified 64-bit long integer at the specified absolute index in this buffer. This method does not modify readerIndex or writerIndex of this buffer.

Specified by:

setLong in interface ActiveMQBuffer

Overrides:

setLong in class ChannelBufferWrapper

Parameters:

index - Index into the buffer

value - The specified 64-bit long integer

setShort

public void setShort(int index,
                     short value)

Description copied from interface: ActiveMQBuffer

Sets the specified 16-bit short integer at the specified absolute index in this buffer. This method does not modify readerIndex or writerIndex of this buffer.

Specified by:

setShort in interface ActiveMQBuffer

Overrides:

setShort in class ChannelBufferWrapper

Parameters:

index - Index into the buffer

value - The specified 16-bit short integer

writeBoolean

public void writeBoolean(boolean val)

Description copied from interface: ActiveMQBuffer

Sets the specified boolean at the current writerIndex

Specified by:

writeBoolean in interface ActiveMQBuffer

Overrides:

writeBoolean in class ChannelBufferWrapper

Parameters:

val - The specified boolean

writeByte

public void writeByte(byte value)

Description copied from interface: ActiveMQBuffer

Sets the specified byte at the current writerIndex and increases the writerIndex by 1 in this buffer.

Specified by:

writeByte in interface ActiveMQBuffer

Overrides:

writeByte in class ChannelBufferWrapper

Parameters:

value - The specified byte

writeBytes

public void writeBytes(byte[] src,
                       int srcIndex,
                       int length)

Description copied from interface: ActiveMQBuffer

Transfers the specified source array's data to this buffer starting at the current writerIndex and increases the writerIndex by the number of the transferred bytes (= length).

Specified by:

writeBytes in interface ActiveMQBuffer

Overrides:

writeBytes in class ChannelBufferWrapper

Parameters:

src - The source buffer

srcIndex - the first index of the source

length - the number of bytes to transfer

writeBytes

public void writeBytes(byte[] src)

Description copied from interface: ActiveMQBuffer

Transfers the specified source array's data to this buffer starting at the current writerIndex and increases the writerIndex by the number of the transferred bytes (= src.length).

Specified by:

writeBytes in interface ActiveMQBuffer

Overrides:

writeBytes in class ChannelBufferWrapper

Parameters:

src - The source buffer

writeBytes

public void writeBytes(ByteBuffer src)

Description copied from interface: ActiveMQBuffer

Transfers the specified source buffer's data to this buffer starting at the current writerIndex until the source buffer's position reaches its limit, and increases the writerIndex by the number of the transferred bytes.

Specified by:

writeBytes in interface ActiveMQBuffer

Overrides:

writeBytes in class ChannelBufferWrapper

Parameters:

src - The source buffer

writeBytes

public void writeBytes(io.netty.buffer.ByteBuf src,
                       int srcIndex,
                       int length)

Description copied from interface: ActiveMQBuffer

Transfers the specified source buffer's data to this buffer starting at the current writerIndex until the source buffer's position reaches its limit, and increases the writerIndex by the number of the transferred bytes.

Specified by:

writeBytes in interface ActiveMQBuffer

Overrides:

writeBytes in class ChannelBufferWrapper

Parameters:

src - The source buffer

writeBytes

public void writeBytes(ActiveMQBuffer src,
                       int srcIndex,
                       int length)

Description copied from interface: ActiveMQBuffer

Transfers the specified source buffer's data to this buffer starting at the current writerIndex and increases the writerIndex by the number of the transferred bytes (= length).

Specified by:

writeBytes in interface ActiveMQBuffer

Overrides:

writeBytes in class ChannelBufferWrapper

Parameters:

src - The source buffer

srcIndex - the first index of the source

length - the number of bytes to transfer

writeBytes

public void writeBytes(ActiveMQBuffer src,
                       int length)

Description copied from interface: ActiveMQBuffer

Transfers the specified source buffer's data to this buffer starting at the current writerIndex and increases the writerIndex by the number of the transferred bytes (= length). This method is basically same with ActiveMQBuffer.writeBytes(ActiveMQBuffer, int, int), except that this method increases the readerIndex of the source buffer by the number of the transferred bytes (= length) while ActiveMQBuffer.writeBytes(ActiveMQBuffer, int, int) does not.

Specified by:

writeBytes in interface ActiveMQBuffer

Overrides:

writeBytes in class ChannelBufferWrapper

Parameters:

src - The source buffer

length - the number of bytes to transfer

writeChar

public void writeChar(char chr)

Description copied from interface: ActiveMQBuffer

Sets the specified char at the current writerIndex and increases the writerIndex by 2 in this buffer.

Specified by:

writeChar in interface ActiveMQBuffer

Overrides:

writeChar in class ChannelBufferWrapper

Parameters:

chr - The specified char

writeDouble

public void writeDouble(double value)

Description copied from interface: ActiveMQBuffer

Sets the specified double at the current writerIndex and increases the writerIndex by 8 in this buffer.

Specified by:

writeDouble in interface ActiveMQBuffer

Overrides:

writeDouble in class ChannelBufferWrapper

Parameters:

value - The specified double

writeFloat

public void writeFloat(float value)

Description copied from interface: ActiveMQBuffer

Sets the specified float at the current writerIndex and increases the writerIndex by 4 in this buffer.

Specified by:

writeFloat in interface ActiveMQBuffer

Overrides:

writeFloat in class ChannelBufferWrapper

Parameters:

value - The specified float

writeInt

public void writeInt(int value)

Description copied from interface: ActiveMQBuffer

Sets the specified 32-bit integer at the current writerIndex and increases the writerIndex by 4 in this buffer.

Specified by:

writeInt in interface ActiveMQBuffer

Overrides:

writeInt in class ChannelBufferWrapper

Parameters:

value - The specified 32-bit integer

writeLong

public void writeLong(long value)

Description copied from interface: ActiveMQBuffer

Sets the specified 64-bit long integer at the current writerIndex and increases the writerIndex by 8 in this buffer.

Specified by:

writeLong in interface ActiveMQBuffer

Overrides:

writeLong in class ChannelBufferWrapper

Parameters:

value - The specified 64-bit long integer

writeNullableSimpleString

public void writeNullableSimpleString(SimpleString val)

Description copied from interface: ActiveMQBuffer

Sets the specified SimpleString (potentially null) at the current writerIndex

Specified by:

writeNullableSimpleString in interface ActiveMQBuffer

Overrides:

writeNullableSimpleString in class ChannelBufferWrapper

Parameters:

val - The specified SimpleString

writeNullableString

public void writeNullableString(String val)

Description copied from interface: ActiveMQBuffer

Sets the specified String (potentially null) at the current writerIndex

Specified by:

writeNullableString in interface ActiveMQBuffer

Overrides:

writeNullableString in class ChannelBufferWrapper

Parameters:

val - The specified String

writeShort

public void writeShort(short value)

Description copied from interface: ActiveMQBuffer

Sets the specified 16-bit short integer at the current writerIndex and increases the writerIndex by 2 in this buffer.

Specified by:

writeShort in interface ActiveMQBuffer

Overrides:

writeShort in class ChannelBufferWrapper

Parameters:

value - The specified 16-bit short integer

writeSimpleString

public void writeSimpleString(SimpleString val)

Description copied from interface: ActiveMQBuffer

Sets the specified non-null SimpleString at the current writerIndex

Specified by:

writeSimpleString in interface ActiveMQBuffer

Overrides:

writeSimpleString in class ChannelBufferWrapper

Parameters:

val - The specified non-null SimpleString

writeString

public void writeString(String val)

Description copied from interface: ActiveMQBuffer

Sets the specified non-null String at the current writerIndex

Specified by:

writeString in interface ActiveMQBuffer

Overrides:

writeString in class ChannelBufferWrapper

Parameters:

val - The specified non-null String

writeUTF

public void writeUTF(String utf)

Description copied from interface: ActiveMQBuffer

Sets the specified UTF-8 String at the current writerIndex

Specified by:

writeUTF in interface ActiveMQBuffer

Overrides:

writeUTF in class ChannelBufferWrapper

Parameters:

utf - The specified UTF-8 String