Class PacketBuffer
- java.lang.Object
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- net.lax1dude.eaglercraft.v1_8.netty.ByteBuf
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- net.minecraft.network.PacketBuffer
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- All Implemented Interfaces:
java.lang.Comparable<ByteBuf>
public class PacketBuffer extends ByteBuf
+ This portion of EaglercraftX contains deobfuscated Minecraft 1.8 source code. Minecraft 1.8.8 bytecode is (c) 2015 Mojang AB. "Do not distribute!" Mod Coder Pack v9.18 deobfuscation configs are (c) Copyright by the MCP Team EaglercraftX 1.8 patch files are (c) 2022-2023 LAX1DUDE. All Rights Reserved. WITH THE EXCEPTION OF PATCH FILES, MINIFIED JAVASCRIPT, AND ALL FILES NORMALLY FOUND IN AN UNMODIFIED MINECRAFT RESOURCE PACK, YOU ARE NOT ALLOWED TO SHARE, DISTRIBUTE, OR REPURPOSE ANY FILE USED BY OR PRODUCED BY THE SOFTWARE IN THIS REPOSITORY WITHOUT PRIOR PERMISSION FROM THE PROJECT AUTHOR. NOT FOR COMMERCIAL OR MALICIOUS USE (please read the 'LICENSE' file this repo's root directory for more info)
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Constructor Summary
Constructors Constructor Description PacketBuffer(ByteBuf wrapped)
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description byte[]array()Returns the backing byte array of this buffer.intarrayOffset()Returns the offset of the first byte within the backing byte array of this buffer.intbytesBefore(byte parByte1)Locates the first occurrence of the specifiedvaluein this buffer.intbytesBefore(int i, byte b0)Locates the first occurrence of the specifiedvaluein this buffer.intbytesBefore(int i, int j, byte b0)Locates the first occurrence of the specifiedvaluein this buffer.intcapacity()Returns the number of bytes (octets) this buffer can contain.ByteBufcapacity(int i)Adjusts the capacity of this buffer.ByteBufclear()Sets thereaderIndexandwriterIndexof this buffer to0.intcompareTo(ByteBuf bytebuf)Compares the content of the specified buffer to the content of this buffer.ByteBufcopy()Returns a copy of this buffer's readable bytes.ByteBufcopy(int i, int j)Returns a copy of this buffer's sub-region.ByteBufdiscardReadBytes()Discards the bytes between the 0th index andreaderIndex.ByteBufdiscardSomeReadBytes()Similar toByteBuf.discardReadBytes()except that this method might discard some, all, or none of read bytes depending on its internal implementation to reduce overall memory bandwidth consumption at the cost of potentially additional memory consumption.ByteBufduplicate()Returns a buffer which shares the whole region of this buffer.ByteBufensureWritable(int parInt1)Makes sure the number of the writable bytes is equal to or greater than the specified value.intensureWritable(int i, boolean flag)Tries to make sure the number of the writable bytes is equal to or greater than the specified value.booleanequals(java.lang.Object object)Determines if the content of the specified buffer is identical to the content of this array.booleangetBoolean(int parInt1)Gets a boolean at the specified absolute (@code index) in this buffer.bytegetByte(int parInt1)Gets a byte at the specified absoluteindexin this buffer.ByteBufgetBytes(int i, byte[] abyte)Transfers this buffer's data to the specified destination starting at the specified absoluteindex.ByteBufgetBytes(int i, byte[] abyte, int j, int k)Transfers this buffer's data to the specified destination starting at the specified absoluteindex.ByteBufgetBytes(int parInt1, java.io.OutputStream parOutputStream, int parInt2)Transfers this buffer's data to the specified stream starting at the specified absoluteindex.ByteBufgetBytes(int i, java.nio.ByteBuffer bytebuffer)Transfers this buffer's data to the specified destination starting at the specified absoluteindexuntil the destination's position reaches its limit.ByteBufgetBytes(int parInt1, ByteBuf parByteBuf)Transfers this buffer's data to the specified destination starting at the specified absoluteindexuntil the destination becomes non-writable.ByteBufgetBytes(int i, ByteBuf bytebuf, int j)Transfers this buffer's data to the specified destination starting at the specified absoluteindex.ByteBufgetBytes(int i, ByteBuf bytebuf, int j, int k)Transfers this buffer's data to the specified destination starting at the specified absoluteindex.chargetChar(int parInt1)Gets a 2-byte UTF-16 character at the specified absoluteindexin this buffer.doublegetDouble(int parInt1)Gets a 64-bit floating point number at the specified absoluteindexin this buffer.floatgetFloat(int parInt1)Gets a 32-bit floating point number at the specified absoluteindexin this buffer.intgetInt(int parInt1)Gets a 32-bit integer at the specified absoluteindexin this buffer.longgetLong(int parInt1)Gets a 64-bit long integer at the specified absoluteindexin this buffer.intgetMedium(int parInt1)Gets a 24-bit medium integer at the specified absoluteindexin this buffer.shortgetShort(int parInt1)Gets a 16-bit short integer at the specified absoluteindexin this buffer.shortgetUnsignedByte(int parInt1)Gets an unsigned byte at the specified absoluteindexin this buffer.longgetUnsignedInt(int parInt1)Gets an unsigned 32-bit integer at the specified absoluteindexin this buffer.intgetUnsignedMedium(int parInt1)Gets an unsigned 24-bit medium integer at the specified absoluteindexin this buffer.intgetUnsignedShort(int parInt1)Gets an unsigned 16-bit short integer at the specified absoluteindexin this buffer.static intgetVarIntSize(int input)+ Calculates the number of bytes required to fit the supplied int (0-5) if it were to be read/written using readVarIntFromBuffer or writeVarIntToBufferbooleanhasArray()Returnstrueif and only if this buffer has a backing byte array.inthashCode()Returns a hash code which was calculated from the content of this buffer.booleanhasMemoryAddress()Returnstrueif and only if this buffer has a reference to the low-level memory address that points to the backing data.intindexOf(int parInt1, int parInt2, byte parByte1)Locates the first occurrence of the specifiedvaluein this buffer.java.nio.ByteBufferinternalNioBuffer(int parInt1, int parInt2)Internal use only: Exposes the internal NIO buffer.booleanisDirect()Returnstrueif and only if this buffer is backed by an NIO direct buffer.booleanisReadable()Returnstrueif and only if(this.writerIndex - this.readerIndex)is greater than0.booleanisReadable(int i)Returnstrueif and only if this buffer contains equal to or more than the specified number of elements.booleanisWritable()Returnstrueif and only if(this.capacity - this.writerIndex)is greater than0.booleanisWritable(int i)Returnstrueif and only if this buffer has enough room to allow writing the specified number of elements.ByteBufmarkReaderIndex()Marks the currentreaderIndexin this buffer.ByteBufmarkWriterIndex()Marks the currentwriterIndexin this buffer.intmaxCapacity()Returns the maximum allowed capacity of this buffer.intmaxWritableBytes()Returns the maximum possible number of writable bytes, which is equal to(this.maxCapacity - this.writerIndex).longmemoryAddress()Returns the low-level memory address that point to the first byte of ths backing data.java.nio.ByteBuffernioBuffer()Exposes this buffer's readable bytes as an NIOByteBuffer.java.nio.ByteBuffernioBuffer(int i, int j)Exposes this buffer's sub-region as an NIOByteBuffer.intnioBufferCount()Returns the maximum number of NIOByteBuffers that consist this buffer.java.nio.ByteBuffer[]nioBuffers()Exposes this buffer's readable bytes as an NIOByteBuffer's.java.nio.ByteBuffer[]nioBuffers(int i, int j)Exposes this buffer's bytes as an NIOByteBuffer's for the specified index and length The returned buffer either share or contains the copied content of this buffer, while changing the position and limit of the returned NIO buffer does not affect the indexes and marks of this buffer.java.nio.ByteOrderorder()Returns the endianness of this buffer.ByteBuforder(java.nio.ByteOrder byteorder)Returns a buffer with the specifiedendiannesswhich shares the whole region, indexes, and marks of this buffer.intreadableBytes()Returns the number of readable bytes which is equal to(this.writerIndex - this.readerIndex).BlockPosreadBlockPos()booleanreadBoolean()Gets a boolean at the currentreaderIndexand increases thereaderIndexby1in this buffer.bytereadByte()Gets a byte at the currentreaderIndexand increases thereaderIndexby1in this buffer.byte[]readByteArray()ByteBufreadBytes(byte[] abyte)Transfers this buffer's data to the specified destination starting at the currentreaderIndexand increases thereaderIndexby the number of the transferred bytes (=dst.length).ByteBufreadBytes(byte[] abyte, int i, int j)Transfers this buffer's data to the specified destination starting at the currentreaderIndexand increases thereaderIndexby the number of the transferred bytes (=length).ByteBufreadBytes(int parInt1)Transfers this buffer's data to a newly created buffer starting at the currentreaderIndexand increases thereaderIndexby the number of the transferred bytes (=length).ByteBufreadBytes(java.io.OutputStream parOutputStream, int parInt1)Transfers this buffer's data to the specified stream starting at the currentreaderIndex.ByteBufreadBytes(java.nio.ByteBuffer bytebuffer)Transfers this buffer's data to the specified destination starting at the currentreaderIndexuntil the destination's position reaches its limit, and increases thereaderIndexby the number of the transferred bytes.ByteBufreadBytes(ByteBuf bytebuf)Transfers this buffer's data to the specified destination starting at the currentreaderIndexuntil the destination becomes non-writable, and increases thereaderIndexby the number of the transferred bytes.ByteBufreadBytes(ByteBuf bytebuf, int i)Transfers this buffer's data to the specified destination starting at the currentreaderIndexand increases thereaderIndexby the number of the transferred bytes (=length).ByteBufreadBytes(ByteBuf bytebuf, int i, int j)Transfers this buffer's data to the specified destination starting at the currentreaderIndexand increases thereaderIndexby the number of the transferred bytes (=length).charreadChar()Gets a 2-byte UTF-16 character at the currentreaderIndexand increases thereaderIndexby2in this buffer.IChatComponentreadChatComponent()doublereadDouble()Gets a 64-bit floating point number at the currentreaderIndexand increases thereaderIndexby8in this buffer.<T extends java.lang.Enum<T>>
TreadEnumValue(java.lang.Class<T> enumClass)intreaderIndex()Returns thereaderIndexof this buffer.ByteBufreaderIndex(int i)Sets thereaderIndexof this buffer.floatreadFloat()Gets a 32-bit floating point number at the currentreaderIndexand increases thereaderIndexby4in this buffer.intreadInt()Gets a 32-bit integer at the currentreaderIndexand increases thereaderIndexby4in this buffer.ItemStackreadItemStackFromBuffer()+ Reads an ItemStack from this bufferlongreadLong()Gets a 64-bit integer at the currentreaderIndexand increases thereaderIndexby8in this buffer.intreadMedium()Gets a 24-bit medium integer at the currentreaderIndexand increases thereaderIndexby3in this buffer.NBTTagCompoundreadNBTTagCompoundFromBuffer()+ Reads a compressed NBTTagCompound from this buffershortreadShort()Gets a 16-bit short integer at the currentreaderIndexand increases thereaderIndexby2in this buffer.ByteBufreadSlice(int parInt1)Returns a new slice of this buffer's sub-region starting at the currentreaderIndexand increases thereaderIndexby the size of the new slice (=length).java.lang.StringreadStringFromBuffer(int maxLength)+ Reads a string from this buffer.shortreadUnsignedByte()Gets an unsigned byte at the currentreaderIndexand increases thereaderIndexby1in this buffer.longreadUnsignedInt()Gets an unsigned 32-bit integer at the currentreaderIndexand increases thereaderIndexby4in this buffer.intreadUnsignedMedium()Gets an unsigned 24-bit medium integer at the currentreaderIndexand increases thereaderIndexby3in this buffer.intreadUnsignedShort()Gets an unsigned 16-bit short integer at the currentreaderIndexand increases thereaderIndexby2in this buffer.EaglercraftUUIDreadUuid()intreadVarIntFromBuffer()+ Reads a compressed int from the buffer.longreadVarLong()ByteBufresetReaderIndex()Repositions the currentreaderIndexto the markedreaderIndexin this buffer.ByteBufresetWriterIndex()Repositions the currentwriterIndexto the markedwriterIndexin this buffer.ByteBufsetBoolean(int parInt1, boolean parFlag)Sets the specified boolean at the specified absoluteindexin this buffer.ByteBufsetByte(int parInt1, int parInt2)Sets the specified byte at the specified absoluteindexin this buffer.ByteBufsetBytes(int i, byte[] abyte)Transfers the specified source array's data to this buffer starting at the specified absoluteindex.ByteBufsetBytes(int i, byte[] abyte, int j, int k)Transfers the specified source array's data to this buffer starting at the specified absoluteindex.intsetBytes(int parInt1, java.io.InputStream parInputStream, int parInt2)Transfers the content of the specified source stream to this buffer starting at the specified absoluteindex.ByteBufsetBytes(int i, java.nio.ByteBuffer bytebuffer)Transfers the specified source buffer's data to this buffer starting at the specified absoluteindexuntil the source buffer's position reaches its limit.ByteBufsetBytes(int parInt1, ByteBuf parByteBuf)Transfers the specified source buffer's data to this buffer starting at the specified absoluteindexuntil the source buffer becomes unreadable.ByteBufsetBytes(int i, ByteBuf bytebuf, int j)Transfers the specified source buffer's data to this buffer starting at the specified absoluteindex.ByteBufsetBytes(int i, ByteBuf bytebuf, int j, int k)Transfers the specified source buffer's data to this buffer starting at the specified absoluteindex.ByteBufsetChar(int parInt1, int parInt2)Sets the specified 2-byte UTF-16 character at the specified absoluteindexin this buffer.ByteBufsetDouble(int parInt1, double parDouble1)Sets the specified 64-bit floating-point number at the specified absoluteindexin this buffer.ByteBufsetFloat(int parInt1, float parFloat1)Sets the specified 32-bit floating-point number at the specified absoluteindexin this buffer.ByteBufsetIndex(int parInt1, int parInt2)Sets thereaderIndexandwriterIndexof this buffer in one shot.ByteBufsetInt(int parInt1, int parInt2)Sets the specified 32-bit integer at the specified absoluteindexin this buffer.ByteBufsetLong(int parInt1, long parLong1)Sets the specified 64-bit long integer at the specified absoluteindexin this buffer.ByteBufsetMedium(int parInt1, int parInt2)Sets the specified 24-bit medium integer at the specified absoluteindexin this buffer.ByteBufsetShort(int parInt1, int parInt2)Sets the specified 16-bit short integer at the specified absoluteindexin this buffer.ByteBufsetZero(int parInt1, int parInt2)Fills this buffer with NUL (0x00) starting at the specified absoluteindex.ByteBufskipBytes(int parInt1)Increases the currentreaderIndexby the specifiedlengthin this buffer.ByteBufslice()Returns a slice of this buffer's readable bytes.ByteBufslice(int i, int j)Returns a slice of this buffer's sub-region.java.lang.StringtoString()Returns the string representation of this buffer.java.lang.StringtoString(int i, int j, java.nio.charset.Charset charset)Decodes this buffer's sub-region into a string with the specified character set.java.lang.StringtoString(java.nio.charset.Charset charset)Decodes this buffer's readable bytes into a string with the specified character set name.ByteBufunwrap()Return the underlying buffer instance if this buffer is a wrapper of another buffer.intwritableBytes()Returns the number of writable bytes which is equal to(this.capacity - this.writerIndex).voidwriteBlockPos(BlockPos pos)ByteBufwriteBoolean(boolean parFlag)Sets the specified boolean at the currentwriterIndexand increases thewriterIndexby1in this buffer.ByteBufwriteByte(int parInt1)Sets the specified byte at the currentwriterIndexand increases thewriterIndexby1in this buffer.voidwriteByteArray(byte[] array)ByteBufwriteBytes(byte[] abyte)Transfers the specified source array's data to this buffer starting at the currentwriterIndexand increases thewriterIndexby the number of the transferred bytes (=src.length).ByteBufwriteBytes(byte[] abyte, int i, int j)Transfers the specified source array's data to this buffer starting at the currentwriterIndexand increases thewriterIndexby the number of the transferred bytes (=length).intwriteBytes(java.io.InputStream parInputStream, int parInt1)Transfers the content of the specified stream to this buffer starting at the currentwriterIndexand increases thewriterIndexby the number of the transferred bytes.ByteBufwriteBytes(java.nio.ByteBuffer bytebuffer)Transfers the specified source buffer's data to this buffer starting at the currentwriterIndexuntil the source buffer's position reaches its limit, and increases thewriterIndexby the number of the transferred bytes.ByteBufwriteBytes(ByteBuf parByteBuf)Transfers the specified source buffer's data to this buffer starting at the currentwriterIndexuntil the source buffer becomes unreadable, and increases thewriterIndexby the number of the transferred bytes.ByteBufwriteBytes(ByteBuf bytebuf, int i)Transfers the specified source buffer's data to this buffer starting at the currentwriterIndexand increases thewriterIndexby the number of the transferred bytes (=length).ByteBufwriteBytes(ByteBuf bytebuf, int i, int j)Transfers the specified source buffer's data to this buffer starting at the currentwriterIndexand increases thewriterIndexby the number of the transferred bytes (=length).ByteBufwriteChar(int parInt1)Sets the specified 2-byte UTF-16 character at the currentwriterIndexand increases thewriterIndexby2in this buffer.voidwriteChatComponent(IChatComponent component)ByteBufwriteDouble(double parDouble1)Sets the specified 64-bit floating point number at the currentwriterIndexand increases thewriterIndexby8in this buffer.voidwriteEnumValue(java.lang.Enum<?> value)ByteBufwriteFloat(float parFloat1)Sets the specified 32-bit floating point number at the currentwriterIndexand increases thewriterIndexby4in this buffer.ByteBufwriteInt(int parInt1)Sets the specified 32-bit integer at the currentwriterIndexand increases thewriterIndexby4in this buffer.voidwriteItemStackToBuffer(ItemStack stack)+ Writes the ItemStack's ID (short), then size (byte), then damage.ByteBufwriteLong(long parLong1)Sets the specified 64-bit long integer at the currentwriterIndexand increases thewriterIndexby8in this buffer.ByteBufwriteMedium(int parInt1)Sets the specified 24-bit medium integer at the currentwriterIndexand increases thewriterIndexby3in this buffer.voidwriteNBTTagCompoundToBuffer(NBTTagCompound nbt)+ Writes a compressed NBTTagCompound to this bufferintwriterIndex()Returns thewriterIndexof this buffer.ByteBufwriterIndex(int i)Sets thewriterIndexof this buffer.ByteBufwriteShort(int parInt1)Sets the specified 16-bit short integer at the currentwriterIndexand increases thewriterIndexby2in this buffer.PacketBufferwriteString(java.lang.String string)voidwriteUuid(EaglercraftUUID uuid)voidwriteVarIntToBuffer(int input)+ Writes a compressed int to the buffer.voidwriteVarLong(long value)ByteBufwriteZero(int parInt1)Fills this buffer with NUL (0x00) starting at the currentwriterIndexand increases thewriterIndexby the specifiedlength.
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Constructor Detail
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PacketBuffer
public PacketBuffer(ByteBuf wrapped)
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Method Detail
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getVarIntSize
public static int getVarIntSize(int input)
+ Calculates the number of bytes required to fit the supplied int (0-5) if it were to be read/written using readVarIntFromBuffer or writeVarIntToBuffer
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writeByteArray
public void writeByteArray(byte[] array)
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readByteArray
public byte[] readByteArray()
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readBlockPos
public BlockPos readBlockPos()
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writeBlockPos
public void writeBlockPos(BlockPos pos)
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readChatComponent
public IChatComponent readChatComponent() throws java.io.IOException
- Throws:
java.io.IOException
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writeChatComponent
public void writeChatComponent(IChatComponent component) throws java.io.IOException
- Throws:
java.io.IOException
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readEnumValue
public <T extends java.lang.Enum<T>> T readEnumValue(java.lang.Class<T> enumClass)
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writeEnumValue
public void writeEnumValue(java.lang.Enum<?> value)
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readVarIntFromBuffer
public int readVarIntFromBuffer()
+ Reads a compressed int from the buffer. To do so it maximally reads 5 byte-sized chunks whose most significant bit dictates whether another byte should be read.
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readVarLong
public long readVarLong()
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writeUuid
public void writeUuid(EaglercraftUUID uuid)
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readUuid
public EaglercraftUUID readUuid()
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writeVarIntToBuffer
public void writeVarIntToBuffer(int input)
+ Writes a compressed int to the buffer. The smallest number of bytes to fit the passed int will be written. Of each such byte only 7 bits will be used to describe the actual value since its most significant bit dictates whether the next byte is part of that same int. Micro-optimization for int values that are expected to have values below 128.
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writeVarLong
public void writeVarLong(long value)
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writeNBTTagCompoundToBuffer
public void writeNBTTagCompoundToBuffer(NBTTagCompound nbt)
+ Writes a compressed NBTTagCompound to this buffer
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readNBTTagCompoundFromBuffer
public NBTTagCompound readNBTTagCompoundFromBuffer() throws java.io.IOException
+ Reads a compressed NBTTagCompound from this buffer- Throws:
java.io.IOException
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writeItemStackToBuffer
public void writeItemStackToBuffer(ItemStack stack)
+ Writes the ItemStack's ID (short), then size (byte), then damage. (short)
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readItemStackFromBuffer
public ItemStack readItemStackFromBuffer() throws java.io.IOException
+ Reads an ItemStack from this buffer- Throws:
java.io.IOException
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readStringFromBuffer
public java.lang.String readStringFromBuffer(int maxLength)
+ Reads a string from this buffer. Expected parameter is maximum allowed string length. Will throw IOException if string length exceeds this value!
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writeString
public PacketBuffer writeString(java.lang.String string)
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capacity
public int capacity()
Description copied from class:ByteBufReturns the number of bytes (octets) this buffer can contain.
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capacity
public ByteBuf capacity(int i)
Description copied from class:ByteBufAdjusts the capacity of this buffer. If thenewCapacityis less than the current capacity, the content of this buffer is truncated. If thenewCapacityis greater than the current capacity, the buffer is appended with unspecified data whose length is(newCapacity - currentCapacity).
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maxCapacity
public int maxCapacity()
Description copied from class:ByteBufReturns the maximum allowed capacity of this buffer. If a user attempts to increase the capacity of this buffer beyond the maximum capacity usingByteBuf.capacity(int)orByteBuf.ensureWritable(int), those methods will raise anIllegalArgumentException.- Specified by:
maxCapacityin classByteBuf
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order
public java.nio.ByteOrder order()
Description copied from class:ByteBufReturns the endianness of this buffer.
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order
public ByteBuf order(java.nio.ByteOrder byteorder)
Description copied from class:ByteBufReturns a buffer with the specifiedendiannesswhich shares the whole region, indexes, and marks of this buffer. Modifying the content, the indexes, or the marks of the returned buffer or this buffer affects each other's content, indexes, and marks. If the specifiedendiannessis identical to this buffer's byte order, this method can returnthis. This method does not modifyreaderIndexorwriterIndexof this buffer.
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unwrap
public ByteBuf unwrap()
Description copied from class:ByteBufReturn the underlying buffer instance if this buffer is a wrapper of another buffer.
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isDirect
public boolean isDirect()
Description copied from class:ByteBufReturnstrueif and only if this buffer is backed by an NIO direct buffer.
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readerIndex
public int readerIndex()
Description copied from class:ByteBufReturns thereaderIndexof this buffer.- Specified by:
readerIndexin classByteBuf
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readerIndex
public ByteBuf readerIndex(int i)
Description copied from class:ByteBufSets thereaderIndexof this buffer.- Specified by:
readerIndexin classByteBuf
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writerIndex
public int writerIndex()
Description copied from class:ByteBufReturns thewriterIndexof this buffer.- Specified by:
writerIndexin classByteBuf
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writerIndex
public ByteBuf writerIndex(int i)
Description copied from class:ByteBufSets thewriterIndexof this buffer.- Specified by:
writerIndexin classByteBuf
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setIndex
public ByteBuf setIndex(int parInt1, int parInt2)
Description copied from class:ByteBufSets thereaderIndexandwriterIndexof this buffer in one shot. This method is useful when you have to worry about the invocation order ofByteBuf.readerIndex(int)andByteBuf.writerIndex(int)methods. For example, the following code will fail:// Create a buffer whose readerIndex, writerIndex and capacity are // 0, 0 and 8 respectively.
The following code will also fail:ByteBufbuf =Unpooled.buffer(8); // IndexOutOfBoundsException is thrown because the specified // readerIndex (2) cannot be greater than the current writerIndex (0). buf.readerIndex(2); buf.writerIndex(4);// Create a buffer whose readerIndex, writerIndex and capacity are // 0, 8 and 8 respectively.
By contrast, this method guarantees that it never throws anByteBufbuf =Unpooled.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);IndexOutOfBoundsExceptionas 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);
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readableBytes
public int readableBytes()
Description copied from class:ByteBufReturns the number of readable bytes which is equal to(this.writerIndex - this.readerIndex).- Specified by:
readableBytesin classByteBuf
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writableBytes
public int writableBytes()
Description copied from class:ByteBufReturns the number of writable bytes which is equal to(this.capacity - this.writerIndex).- Specified by:
writableBytesin classByteBuf
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maxWritableBytes
public int maxWritableBytes()
Description copied from class:ByteBufReturns the maximum possible number of writable bytes, which is equal to(this.maxCapacity - this.writerIndex).- Specified by:
maxWritableBytesin classByteBuf
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isReadable
public boolean isReadable()
Description copied from class:ByteBufReturnstrueif and only if(this.writerIndex - this.readerIndex)is greater than0.- Specified by:
isReadablein classByteBuf
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isReadable
public boolean isReadable(int i)
Description copied from class:ByteBufReturnstrueif and only if this buffer contains equal to or more than the specified number of elements.- Specified by:
isReadablein classByteBuf
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isWritable
public boolean isWritable()
Description copied from class:ByteBufReturnstrueif and only if(this.capacity - this.writerIndex)is greater than0.- Specified by:
isWritablein classByteBuf
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isWritable
public boolean isWritable(int i)
Description copied from class:ByteBufReturnstrueif and only if this buffer has enough room to allow writing the specified number of elements.- Specified by:
isWritablein classByteBuf
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clear
public ByteBuf clear()
Description copied from class:ByteBufSets thereaderIndexandwriterIndexof this buffer to0. This method is identical tosetIndex(0, 0).Please note that the behavior of this method is different from that of NIO buffer, which sets the
limitto thecapacityof the buffer.
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markReaderIndex
public ByteBuf markReaderIndex()
Description copied from class:ByteBufMarks the currentreaderIndexin this buffer. You can reposition the currentreaderIndexto the markedreaderIndexby callingByteBuf.resetReaderIndex(). The initial value of the markedreaderIndexis0.- Specified by:
markReaderIndexin classByteBuf
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resetReaderIndex
public ByteBuf resetReaderIndex()
Description copied from class:ByteBufRepositions the currentreaderIndexto the markedreaderIndexin this buffer.- Specified by:
resetReaderIndexin classByteBuf
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markWriterIndex
public ByteBuf markWriterIndex()
Description copied from class:ByteBufMarks the currentwriterIndexin this buffer. You can reposition the currentwriterIndexto the markedwriterIndexby callingByteBuf.resetWriterIndex(). The initial value of the markedwriterIndexis0.- Specified by:
markWriterIndexin classByteBuf
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resetWriterIndex
public ByteBuf resetWriterIndex()
Description copied from class:ByteBufRepositions the currentwriterIndexto the markedwriterIndexin this buffer.- Specified by:
resetWriterIndexin classByteBuf
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discardReadBytes
public ByteBuf discardReadBytes()
Description copied from class:ByteBufDiscards the bytes between the 0th index andreaderIndex. It moves the bytes betweenreaderIndexandwriterIndexto the 0th index, and setsreaderIndexandwriterIndexto0andoldWriterIndex - oldReaderIndexrespectively.Please refer to the class documentation for more detailed explanation.
- Specified by:
discardReadBytesin classByteBuf
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discardSomeReadBytes
public ByteBuf discardSomeReadBytes()
Description copied from class:ByteBufSimilar toByteBuf.discardReadBytes()except that this method might discard some, all, or none of read bytes depending on its internal implementation to reduce overall memory bandwidth consumption at the cost of potentially additional memory consumption.- Specified by:
discardSomeReadBytesin classByteBuf
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ensureWritable
public ByteBuf ensureWritable(int parInt1)
Description copied from class:ByteBufMakes sure the number of the writable bytes is equal to or greater than the specified value. If there is enough writable bytes in this buffer, this method returns with no side effect. Otherwise, it raises anIllegalArgumentException.- Specified by:
ensureWritablein classByteBuf- Parameters:
parInt1- the expected minimum number of writable bytes
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ensureWritable
public int ensureWritable(int i, boolean flag)Description copied from class:ByteBufTries to make sure the number of the writable bytes is equal to or greater than the specified value. UnlikeByteBuf.ensureWritable(int), this method does not raise an exception but returns a code.- Specified by:
ensureWritablein classByteBuf- Parameters:
i- the expected minimum number of writable bytesflag- WhenByteBuf.writerIndex()+minWritableBytes>ByteBuf.maxCapacity():true- the capacity of the buffer is expanded toByteBuf.maxCapacity()false- the capacity of the buffer is unchanged
- Returns:
0if the buffer has enough writable bytes, and its capacity is unchanged.1if the buffer does not have enough bytes, and its capacity is unchanged.2if the buffer has enough writable bytes, and its capacity has been increased.3if the buffer does not have enough bytes, but its capacity has been increased to its maximum.
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getBoolean
public boolean getBoolean(int parInt1)
Description copied from class:ByteBufGets a boolean at the specified absolute (@code index) in this buffer. This method does not modify thereaderIndexorwriterIndexof this buffer.- Specified by:
getBooleanin classByteBuf
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getByte
public byte getByte(int parInt1)
Description copied from class:ByteBufGets a byte at the specified absoluteindexin this buffer. This method does not modifyreaderIndexorwriterIndexof this buffer.
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getUnsignedByte
public short getUnsignedByte(int parInt1)
Description copied from class:ByteBufGets an unsigned byte at the specified absoluteindexin this buffer. This method does not modifyreaderIndexorwriterIndexof this buffer.- Specified by:
getUnsignedBytein classByteBuf
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getShort
public short getShort(int parInt1)
Description copied from class:ByteBufGets a 16-bit short integer at the specified absoluteindexin this buffer. This method does not modifyreaderIndexorwriterIndexof this buffer.
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getUnsignedShort
public int getUnsignedShort(int parInt1)
Description copied from class:ByteBufGets an unsigned 16-bit short integer at the specified absoluteindexin this buffer. This method does not modifyreaderIndexorwriterIndexof this buffer.- Specified by:
getUnsignedShortin classByteBuf
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getMedium
public int getMedium(int parInt1)
Description copied from class:ByteBufGets a 24-bit medium integer at the specified absoluteindexin this buffer. This method does not modifyreaderIndexorwriterIndexof this buffer.
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getUnsignedMedium
public int getUnsignedMedium(int parInt1)
Description copied from class:ByteBufGets an unsigned 24-bit medium integer at the specified absoluteindexin this buffer. This method does not modifyreaderIndexorwriterIndexof this buffer.- Specified by:
getUnsignedMediumin classByteBuf
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getInt
public int getInt(int parInt1)
Description copied from class:ByteBufGets a 32-bit integer at the specified absoluteindexin this buffer. This method does not modifyreaderIndexorwriterIndexof this buffer.
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getUnsignedInt
public long getUnsignedInt(int parInt1)
Description copied from class:ByteBufGets an unsigned 32-bit integer at the specified absoluteindexin this buffer. This method does not modifyreaderIndexorwriterIndexof this buffer.- Specified by:
getUnsignedIntin classByteBuf
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getLong
public long getLong(int parInt1)
Description copied from class:ByteBufGets a 64-bit long integer at the specified absoluteindexin this buffer. This method does not modifyreaderIndexorwriterIndexof this buffer.
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getChar
public char getChar(int parInt1)
Description copied from class:ByteBufGets a 2-byte UTF-16 character at the specified absoluteindexin this buffer. This method does not modifyreaderIndexorwriterIndexof this buffer.
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getFloat
public float getFloat(int parInt1)
Description copied from class:ByteBufGets a 32-bit floating point number at the specified absoluteindexin this buffer. This method does not modifyreaderIndexorwriterIndexof this buffer.
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getDouble
public double getDouble(int parInt1)
Description copied from class:ByteBufGets a 64-bit floating point number at the specified absoluteindexin this buffer. This method does not modifyreaderIndexorwriterIndexof this buffer.
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getBytes
public ByteBuf getBytes(int parInt1, ByteBuf parByteBuf)
Description copied from class:ByteBufTransfers this buffer's data to the specified destination starting at the specified absoluteindexuntil the destination becomes non-writable. This method is basically same withByteBuf.getBytes(int, ByteBuf, int, int), except that this method increases thewriterIndexof the destination by the number of the transferred bytes whileByteBuf.getBytes(int, ByteBuf, int, int)does not. This method does not modifyreaderIndexorwriterIndexof the source buffer (i.e.this).
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getBytes
public ByteBuf getBytes(int i, ByteBuf bytebuf, int j)
Description copied from class:ByteBufTransfers this buffer's data to the specified destination starting at the specified absoluteindex. This method is basically same withByteBuf.getBytes(int, ByteBuf, int, int), except that this method increases thewriterIndexof the destination by the number of the transferred bytes whileByteBuf.getBytes(int, ByteBuf, int, int)does not. This method does not modifyreaderIndexorwriterIndexof the source buffer (i.e.this).
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getBytes
public ByteBuf getBytes(int i, ByteBuf bytebuf, int j, int k)
Description copied from class:ByteBufTransfers this buffer's data to the specified destination starting at the specified absoluteindex. This method does not modifyreaderIndexorwriterIndexof both the source (i.e.this) and the destination.
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getBytes
public ByteBuf getBytes(int i, byte[] abyte)
Description copied from class:ByteBufTransfers this buffer's data to the specified destination starting at the specified absoluteindex. This method does not modifyreaderIndexorwriterIndexof this buffer
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getBytes
public ByteBuf getBytes(int i, byte[] abyte, int j, int k)
Description copied from class:ByteBufTransfers this buffer's data to the specified destination starting at the specified absoluteindex. This method does not modifyreaderIndexorwriterIndexof this buffer.
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getBytes
public ByteBuf getBytes(int i, java.nio.ByteBuffer bytebuffer)
Description copied from class:ByteBufTransfers this buffer's data to the specified destination starting at the specified absoluteindexuntil the destination's position reaches its limit. This method does not modifyreaderIndexorwriterIndexof this buffer while the destination'spositionwill be increased.
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getBytes
public ByteBuf getBytes(int parInt1, java.io.OutputStream parOutputStream, int parInt2) throws java.io.IOException
Description copied from class:ByteBufTransfers this buffer's data to the specified stream starting at the specified absoluteindex. This method does not modifyreaderIndexorwriterIndexof this buffer.
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setBoolean
public ByteBuf setBoolean(int parInt1, boolean parFlag)
Description copied from class:ByteBufSets the specified boolean at the specified absoluteindexin this buffer. This method does not modifyreaderIndexorwriterIndexof this buffer.- Specified by:
setBooleanin classByteBuf
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setByte
public ByteBuf setByte(int parInt1, int parInt2)
Description copied from class:ByteBufSets the specified byte at the specified absoluteindexin this buffer. The 24 high-order bits of the specified value are ignored. This method does not modifyreaderIndexorwriterIndexof this buffer.
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setShort
public ByteBuf setShort(int parInt1, int parInt2)
Description copied from class:ByteBufSets the specified 16-bit short integer at the specified absoluteindexin this buffer. The 16 high-order bits of the specified value are ignored. This method does not modifyreaderIndexorwriterIndexof this buffer.
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setMedium
public ByteBuf setMedium(int parInt1, int parInt2)
Description copied from class:ByteBufSets the specified 24-bit medium integer at the specified absoluteindexin this buffer. Please note that the most significant byte is ignored in the specified value. This method does not modifyreaderIndexorwriterIndexof this buffer.
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setInt
public ByteBuf setInt(int parInt1, int parInt2)
Description copied from class:ByteBufSets the specified 32-bit integer at the specified absoluteindexin this buffer. This method does not modifyreaderIndexorwriterIndexof this buffer.
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setLong
public ByteBuf setLong(int parInt1, long parLong1)
Description copied from class:ByteBufSets the specified 64-bit long integer at the specified absoluteindexin this buffer. This method does not modifyreaderIndexorwriterIndexof this buffer.
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setChar
public ByteBuf setChar(int parInt1, int parInt2)
Description copied from class:ByteBufSets the specified 2-byte UTF-16 character at the specified absoluteindexin this buffer. The 16 high-order bits of the specified value are ignored. This method does not modifyreaderIndexorwriterIndexof this buffer.
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setFloat
public ByteBuf setFloat(int parInt1, float parFloat1)
Description copied from class:ByteBufSets the specified 32-bit floating-point number at the specified absoluteindexin this buffer. This method does not modifyreaderIndexorwriterIndexof this buffer.
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setDouble
public ByteBuf setDouble(int parInt1, double parDouble1)
Description copied from class:ByteBufSets the specified 64-bit floating-point number at the specified absoluteindexin this buffer. This method does not modifyreaderIndexorwriterIndexof this buffer.
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setBytes
public ByteBuf setBytes(int parInt1, ByteBuf parByteBuf)
Description copied from class:ByteBufTransfers the specified source buffer's data to this buffer starting at the specified absoluteindexuntil the source buffer becomes unreadable. This method is basically same withByteBuf.setBytes(int, ByteBuf, int, int), except that this method increases thereaderIndexof the source buffer by the number of the transferred bytes whileByteBuf.setBytes(int, ByteBuf, int, int)does not. This method does not modifyreaderIndexorwriterIndexof the source buffer (i.e.this).
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setBytes
public ByteBuf setBytes(int i, ByteBuf bytebuf, int j)
Description copied from class:ByteBufTransfers the specified source buffer's data to this buffer starting at the specified absoluteindex. This method is basically same withByteBuf.setBytes(int, ByteBuf, int, int), except that this method increases thereaderIndexof the source buffer by the number of the transferred bytes whileByteBuf.setBytes(int, ByteBuf, int, int)does not. This method does not modifyreaderIndexorwriterIndexof the source buffer (i.e.this).
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setBytes
public ByteBuf setBytes(int i, ByteBuf bytebuf, int j, int k)
Description copied from class:ByteBufTransfers the specified source buffer's data to this buffer starting at the specified absoluteindex. This method does not modifyreaderIndexorwriterIndexof both the source (i.e.this) and the destination.
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setBytes
public ByteBuf setBytes(int i, byte[] abyte)
Description copied from class:ByteBufTransfers the specified source array's data to this buffer starting at the specified absoluteindex. This method does not modifyreaderIndexorwriterIndexof this buffer.
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setBytes
public ByteBuf setBytes(int i, byte[] abyte, int j, int k)
Description copied from class:ByteBufTransfers the specified source array's data to this buffer starting at the specified absoluteindex. This method does not modifyreaderIndexorwriterIndexof this buffer.
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setBytes
public ByteBuf setBytes(int i, java.nio.ByteBuffer bytebuffer)
Description copied from class:ByteBufTransfers the specified source buffer's data to this buffer starting at the specified absoluteindexuntil the source buffer's position reaches its limit. This method does not modifyreaderIndexorwriterIndexof this buffer.
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setBytes
public int setBytes(int parInt1, java.io.InputStream parInputStream, int parInt2) throws java.io.IOExceptionDescription copied from class:ByteBufTransfers the content of the specified source stream to this buffer starting at the specified absoluteindex. This method does not modifyreaderIndexorwriterIndexof this buffer.
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setZero
public ByteBuf setZero(int parInt1, int parInt2)
Description copied from class:ByteBufFills this buffer with NUL (0x00) starting at the specified absoluteindex. This method does not modifyreaderIndexorwriterIndexof this buffer.
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readBoolean
public boolean readBoolean()
Description copied from class:ByteBufGets a boolean at the currentreaderIndexand increases thereaderIndexby1in this buffer.- Specified by:
readBooleanin classByteBuf
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readByte
public byte readByte()
Description copied from class:ByteBufGets a byte at the currentreaderIndexand increases thereaderIndexby1in this buffer.
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readUnsignedByte
public short readUnsignedByte()
Description copied from class:ByteBufGets an unsigned byte at the currentreaderIndexand increases thereaderIndexby1in this buffer.- Specified by:
readUnsignedBytein classByteBuf
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readShort
public short readShort()
Description copied from class:ByteBufGets a 16-bit short integer at the currentreaderIndexand increases thereaderIndexby2in this buffer.
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readUnsignedShort
public int readUnsignedShort()
Description copied from class:ByteBufGets an unsigned 16-bit short integer at the currentreaderIndexand increases thereaderIndexby2in this buffer.- Specified by:
readUnsignedShortin classByteBuf
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readMedium
public int readMedium()
Description copied from class:ByteBufGets a 24-bit medium integer at the currentreaderIndexand increases thereaderIndexby3in this buffer.- Specified by:
readMediumin classByteBuf
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readUnsignedMedium
public int readUnsignedMedium()
Description copied from class:ByteBufGets an unsigned 24-bit medium integer at the currentreaderIndexand increases thereaderIndexby3in this buffer.- Specified by:
readUnsignedMediumin classByteBuf
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readInt
public int readInt()
Description copied from class:ByteBufGets a 32-bit integer at the currentreaderIndexand increases thereaderIndexby4in this buffer.
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readUnsignedInt
public long readUnsignedInt()
Description copied from class:ByteBufGets an unsigned 32-bit integer at the currentreaderIndexand increases thereaderIndexby4in this buffer.- Specified by:
readUnsignedIntin classByteBuf
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readLong
public long readLong()
Description copied from class:ByteBufGets a 64-bit integer at the currentreaderIndexand increases thereaderIndexby8in this buffer.
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readChar
public char readChar()
Description copied from class:ByteBufGets a 2-byte UTF-16 character at the currentreaderIndexand increases thereaderIndexby2in this buffer.
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readFloat
public float readFloat()
Description copied from class:ByteBufGets a 32-bit floating point number at the currentreaderIndexand increases thereaderIndexby4in this buffer.
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readDouble
public double readDouble()
Description copied from class:ByteBufGets a 64-bit floating point number at the currentreaderIndexand increases thereaderIndexby8in this buffer.- Specified by:
readDoublein classByteBuf
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readBytes
public ByteBuf readBytes(int parInt1)
Description copied from class:ByteBufTransfers this buffer's data to a newly created buffer starting at the currentreaderIndexand increases thereaderIndexby the number of the transferred bytes (=length). The returned buffer'sreaderIndexandwriterIndexare0andlengthrespectively.
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readSlice
public ByteBuf readSlice(int parInt1)
Description copied from class:ByteBufReturns a new slice of this buffer's sub-region starting at the currentreaderIndexand increases thereaderIndexby the size of the new slice (=length).Also be aware that this method will NOT call
#retain()and so the reference count will NOT be increased.
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readBytes
public ByteBuf readBytes(ByteBuf bytebuf)
Description copied from class:ByteBufTransfers this buffer's data to the specified destination starting at the currentreaderIndexuntil the destination becomes non-writable, and increases thereaderIndexby the number of the transferred bytes. This method is basically same withByteBuf.readBytes(ByteBuf, int, int), except that this method increases thewriterIndexof the destination by the number of the transferred bytes whileByteBuf.readBytes(ByteBuf, int, int)does not.
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readBytes
public ByteBuf readBytes(ByteBuf bytebuf, int i)
Description copied from class:ByteBufTransfers this buffer's data to the specified destination starting at the currentreaderIndexand increases thereaderIndexby the number of the transferred bytes (=length). This method is basically same withByteBuf.readBytes(ByteBuf, int, int), except that this method increases thewriterIndexof the destination by the number of the transferred bytes (=length) whileByteBuf.readBytes(ByteBuf, int, int)does not.
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readBytes
public ByteBuf readBytes(ByteBuf bytebuf, int i, int j)
Description copied from class:ByteBufTransfers this buffer's data to the specified destination starting at the currentreaderIndexand increases thereaderIndexby the number of the transferred bytes (=length).
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readBytes
public ByteBuf readBytes(byte[] abyte)
Description copied from class:ByteBufTransfers this buffer's data to the specified destination starting at the currentreaderIndexand increases thereaderIndexby the number of the transferred bytes (=dst.length).
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readBytes
public ByteBuf readBytes(byte[] abyte, int i, int j)
Description copied from class:ByteBufTransfers this buffer's data to the specified destination starting at the currentreaderIndexand increases thereaderIndexby the number of the transferred bytes (=length).
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readBytes
public ByteBuf readBytes(java.nio.ByteBuffer bytebuffer)
Description copied from class:ByteBufTransfers this buffer's data to the specified destination starting at the currentreaderIndexuntil the destination's position reaches its limit, and increases thereaderIndexby the number of the transferred bytes.
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readBytes
public ByteBuf readBytes(java.io.OutputStream parOutputStream, int parInt1) throws java.io.IOException
Description copied from class:ByteBufTransfers this buffer's data to the specified stream starting at the currentreaderIndex.
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skipBytes
public ByteBuf skipBytes(int parInt1)
Description copied from class:ByteBufIncreases the currentreaderIndexby the specifiedlengthin this buffer.
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writeBoolean
public ByteBuf writeBoolean(boolean parFlag)
Description copied from class:ByteBufSets the specified boolean at the currentwriterIndexand increases thewriterIndexby1in this buffer.- Specified by:
writeBooleanin classByteBuf
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writeByte
public ByteBuf writeByte(int parInt1)
Description copied from class:ByteBufSets the specified byte at the currentwriterIndexand increases thewriterIndexby1in this buffer. The 24 high-order bits of the specified value are ignored.
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writeShort
public ByteBuf writeShort(int parInt1)
Description copied from class:ByteBufSets the specified 16-bit short integer at the currentwriterIndexand increases thewriterIndexby2in this buffer. The 16 high-order bits of the specified value are ignored.- Specified by:
writeShortin classByteBuf
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writeMedium
public ByteBuf writeMedium(int parInt1)
Description copied from class:ByteBufSets the specified 24-bit medium integer at the currentwriterIndexand increases thewriterIndexby3in this buffer.- Specified by:
writeMediumin classByteBuf
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writeInt
public ByteBuf writeInt(int parInt1)
Description copied from class:ByteBufSets the specified 32-bit integer at the currentwriterIndexand increases thewriterIndexby4in this buffer.
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writeLong
public ByteBuf writeLong(long parLong1)
Description copied from class:ByteBufSets the specified 64-bit long integer at the currentwriterIndexand increases thewriterIndexby8in this buffer.
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writeChar
public ByteBuf writeChar(int parInt1)
Description copied from class:ByteBufSets the specified 2-byte UTF-16 character at the currentwriterIndexand increases thewriterIndexby2in this buffer. The 16 high-order bits of the specified value are ignored.
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writeFloat
public ByteBuf writeFloat(float parFloat1)
Description copied from class:ByteBufSets the specified 32-bit floating point number at the currentwriterIndexand increases thewriterIndexby4in this buffer.- Specified by:
writeFloatin classByteBuf
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writeDouble
public ByteBuf writeDouble(double parDouble1)
Description copied from class:ByteBufSets the specified 64-bit floating point number at the currentwriterIndexand increases thewriterIndexby8in this buffer.- Specified by:
writeDoublein classByteBuf
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writeBytes
public ByteBuf writeBytes(ByteBuf parByteBuf)
Description copied from class:ByteBufTransfers the specified source buffer's data to this buffer starting at the currentwriterIndexuntil the source buffer becomes unreadable, and increases thewriterIndexby the number of the transferred bytes. This method is basically same withByteBuf.writeBytes(ByteBuf, int, int), except that this method increases thereaderIndexof the source buffer by the number of the transferred bytes whileByteBuf.writeBytes(ByteBuf, int, int)does not.- Specified by:
writeBytesin classByteBuf
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writeBytes
public ByteBuf writeBytes(ByteBuf bytebuf, int i)
Description copied from class:ByteBufTransfers the specified source buffer's data to this buffer starting at the currentwriterIndexand increases thewriterIndexby the number of the transferred bytes (=length). This method is basically same withByteBuf.writeBytes(ByteBuf, int, int), except that this method increases thereaderIndexof the source buffer by the number of the transferred bytes (=length) whileByteBuf.writeBytes(ByteBuf, int, int)does not.- Specified by:
writeBytesin classByteBufi- the number of bytes to transfer
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writeBytes
public ByteBuf writeBytes(ByteBuf bytebuf, int i, int j)
Description copied from class:ByteBufTransfers the specified source buffer's data to this buffer starting at the currentwriterIndexand increases thewriterIndexby the number of the transferred bytes (=length).- Specified by:
writeBytesin classByteBufi- the first index of the sourcej- the number of bytes to transfer
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writeBytes
public ByteBuf writeBytes(byte[] abyte)
Description copied from class:ByteBufTransfers the specified source array's data to this buffer starting at the currentwriterIndexand increases thewriterIndexby the number of the transferred bytes (=src.length).- Specified by:
writeBytesin classByteBuf
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writeBytes
public ByteBuf writeBytes(byte[] abyte, int i, int j)
Description copied from class:ByteBufTransfers the specified source array's data to this buffer starting at the currentwriterIndexand increases thewriterIndexby the number of the transferred bytes (=length).- Specified by:
writeBytesin classByteBufi- the first index of the sourcej- the number of bytes to transfer
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writeBytes
public ByteBuf writeBytes(java.nio.ByteBuffer bytebuffer)
Description copied from class:ByteBufTransfers the specified source buffer's data to this buffer starting at the currentwriterIndexuntil the source buffer's position reaches its limit, and increases thewriterIndexby the number of the transferred bytes.- Specified by:
writeBytesin classByteBuf
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writeBytes
public int writeBytes(java.io.InputStream parInputStream, int parInt1) throws java.io.IOExceptionDescription copied from class:ByteBufTransfers the content of the specified stream to this buffer starting at the currentwriterIndexand increases thewriterIndexby the number of the transferred bytes.- Specified by:
writeBytesin classByteBufparInt1- the number of bytes to transfer- Returns:
- the actual number of bytes read in from the specified stream
- Throws:
java.io.IOException- if the specified stream threw an exception during I/O
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writeZero
public ByteBuf writeZero(int parInt1)
Description copied from class:ByteBufFills this buffer with NUL (0x00) starting at the currentwriterIndexand increases thewriterIndexby the specifiedlength.
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indexOf
public int indexOf(int parInt1, int parInt2, byte parByte1)Description copied from class:ByteBufLocates the first occurrence of the specifiedvaluein this buffer. The search takes place from the specifiedfromIndex(inclusive) to the specifiedtoIndex(exclusive).If
fromIndexis greater thantoIndex, the search is performed in a reversed order.This method does not modify
readerIndexorwriterIndexof this buffer.
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bytesBefore
public int bytesBefore(byte parByte1)
Description copied from class:ByteBufLocates the first occurrence of the specifiedvaluein this buffer. The search takes place from the currentreaderIndex(inclusive) to the currentwriterIndex(exclusive).This method does not modify
readerIndexorwriterIndexof this buffer.- Specified by:
bytesBeforein classByteBuf- Returns:
- the number of bytes between the current
readerIndexand the first occurrence if found.-1otherwise.
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bytesBefore
public int bytesBefore(int i, byte b0)Description copied from class:ByteBufLocates the first occurrence of the specifiedvaluein this buffer. The search starts from the currentreaderIndex(inclusive) and lasts for the specifiedlength.This method does not modify
readerIndexorwriterIndexof this buffer.- Specified by:
bytesBeforein classByteBuf- Returns:
- the number of bytes between the current
readerIndexand the first occurrence if found.-1otherwise.
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bytesBefore
public int bytesBefore(int i, int j, byte b0)Description copied from class:ByteBufLocates the first occurrence of the specifiedvaluein this buffer. The search starts from the specifiedindex(inclusive) and lasts for the specifiedlength.This method does not modify
readerIndexorwriterIndexof this buffer.- Specified by:
bytesBeforein classByteBuf- Returns:
- the number of bytes between the specified
indexand the first occurrence if found.-1otherwise.
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copy
public ByteBuf copy()
Description copied from class:ByteBufReturns a copy of this buffer's readable bytes. Modifying the content of the returned buffer or this buffer does not affect each other at all. This method is identical tobuf.copy(buf.readerIndex(), buf.readableBytes()). This method does not modifyreaderIndexorwriterIndexof this buffer.
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copy
public ByteBuf copy(int i, int j)
Description copied from class:ByteBufReturns a copy of this buffer's sub-region. Modifying the content of the returned buffer or this buffer does not affect each other at all. This method does not modifyreaderIndexorwriterIndexof this buffer.
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slice
public ByteBuf slice()
Description copied from class:ByteBufReturns a slice of this buffer's readable bytes. Modifying the content of the returned buffer or this buffer affects each other's content while they maintain separate indexes and marks. This method is identical tobuf.slice(buf.readerIndex(), buf.readableBytes()). This method does not modifyreaderIndexorwriterIndexof this buffer.Also be aware that this method will NOT call
#retain()and so the reference count will NOT be increased.
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slice
public ByteBuf slice(int i, int j)
Description copied from class:ByteBufReturns a slice of this buffer's sub-region. Modifying the content of the returned buffer or this buffer affects each other's content while they maintain separate indexes and marks. This method does not modifyreaderIndexorwriterIndexof this buffer.Also be aware that this method will NOT call
#retain()and so the reference count will NOT be increased.
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duplicate
public ByteBuf duplicate()
Description copied from class:ByteBufReturns a buffer which shares the whole region of this buffer. Modifying the content of the returned buffer or this buffer affects each other's content while they maintain separate indexes and marks. This method does not modifyreaderIndexorwriterIndexof this buffer.The reader and writer marks will not be duplicated. Also be aware that this method will NOT call
#retain()and so the reference count will NOT be increased.- Specified by:
duplicatein classByteBuf- Returns:
- A buffer whose readable content is equivalent to the buffer returned
by
ByteBuf.slice(). However this buffer will share the capacity of the underlying buffer, and therefore allows access to all of the underlying content if necessary.
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nioBufferCount
public int nioBufferCount()
Description copied from class:ByteBufReturns the maximum number of NIOByteBuffers that consist this buffer. Note thatByteBuf.nioBuffers()orByteBuf.nioBuffers(int, int)might return a less number ofByteBuffers.- Specified by:
nioBufferCountin classByteBuf- Returns:
-1if this buffer has no underlyingByteBuffer. the number of the underlyingByteBuffers if this buffer has at least one underlyingByteBuffer. Note that this method does not return0to avoid confusion.- See Also:
ByteBuf.nioBuffer(),ByteBuf.nioBuffer(int, int),ByteBuf.nioBuffers(),ByteBuf.nioBuffers(int, int)
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nioBuffer
public java.nio.ByteBuffer nioBuffer()
Description copied from class:ByteBufExposes this buffer's readable bytes as an NIOByteBuffer. The returned buffer either share or contains the copied content of this buffer, while changing the position and limit of the returned NIO buffer does not affect the indexes and marks of this buffer. This method is identical tobuf.nioBuffer(buf.readerIndex(), buf.readableBytes()). This method does not modifyreaderIndexorwriterIndexof this buffer. Please note that the returned NIO buffer will not see the changes of this buffer if this buffer is a dynamic buffer and it adjusted its capacity.- Specified by:
nioBufferin classByteBuf- See Also:
ByteBuf.nioBufferCount(),ByteBuf.nioBuffers(),ByteBuf.nioBuffers(int, int)
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nioBuffer
public java.nio.ByteBuffer nioBuffer(int i, int j)Description copied from class:ByteBufExposes this buffer's sub-region as an NIOByteBuffer. The returned buffer either share or contains the copied content of this buffer, while changing the position and limit of the returned NIO buffer does not affect the indexes and marks of this buffer. This method does not modifyreaderIndexorwriterIndexof this buffer. Please note that the returned NIO buffer will not see the changes of this buffer if this buffer is a dynamic buffer and it adjusted its capacity.- Specified by:
nioBufferin classByteBuf- See Also:
ByteBuf.nioBufferCount(),ByteBuf.nioBuffers(),ByteBuf.nioBuffers(int, int)
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internalNioBuffer
public java.nio.ByteBuffer internalNioBuffer(int parInt1, int parInt2)Description copied from class:ByteBufInternal use only: Exposes the internal NIO buffer.- Specified by:
internalNioBufferin classByteBuf
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nioBuffers
public java.nio.ByteBuffer[] nioBuffers()
Description copied from class:ByteBufExposes this buffer's readable bytes as an NIOByteBuffer's. The returned buffer either share or contains the copied content of this buffer, while changing the position and limit of the returned NIO buffer does not affect the indexes and marks of this buffer. This method does not modifyreaderIndexorwriterIndexof this buffer. Please note that the returned NIO buffer will not see the changes of this buffer if this buffer is a dynamic buffer and it adjusted its capacity.- Specified by:
nioBuffersin classByteBuf- See Also:
ByteBuf.nioBufferCount(),ByteBuf.nioBuffer(),ByteBuf.nioBuffer(int, int)
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nioBuffers
public java.nio.ByteBuffer[] nioBuffers(int i, int j)Description copied from class:ByteBufExposes this buffer's bytes as an NIOByteBuffer's for the specified index and length The returned buffer either share or contains the copied content of this buffer, while changing the position and limit of the returned NIO buffer does not affect the indexes and marks of this buffer. This method does not modifyreaderIndexorwriterIndexof this buffer. Please note that the returned NIO buffer will not see the changes of this buffer if this buffer is a dynamic buffer and it adjusted its capacity.- Specified by:
nioBuffersin classByteBuf- See Also:
ByteBuf.nioBufferCount(),ByteBuf.nioBuffer(),ByteBuf.nioBuffer(int, int)
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hasArray
public boolean hasArray()
Description copied from class:ByteBufReturnstrueif and only if this buffer has a backing byte array. If this method returns true, you can safely callByteBuf.array()andByteBuf.arrayOffset().
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array
public byte[] array()
Description copied from class:ByteBufReturns the backing byte array of this buffer.
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arrayOffset
public int arrayOffset()
Description copied from class:ByteBufReturns the offset of the first byte within the backing byte array of this buffer.- Specified by:
arrayOffsetin classByteBuf
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hasMemoryAddress
public boolean hasMemoryAddress()
Description copied from class:ByteBufReturnstrueif and only if this buffer has a reference to the low-level memory address that points to the backing data.- Specified by:
hasMemoryAddressin classByteBuf
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memoryAddress
public long memoryAddress()
Description copied from class:ByteBufReturns the low-level memory address that point to the first byte of ths backing data.- Specified by:
memoryAddressin classByteBuf
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toString
public java.lang.String toString(java.nio.charset.Charset charset)
Description copied from class:ByteBufDecodes this buffer's readable bytes into a string with the specified character set name. This method is identical tobuf.toString(buf.readerIndex(), buf.readableBytes(), charsetName). This method does not modifyreaderIndexorwriterIndexof this buffer.
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toString
public java.lang.String toString(int i, int j, java.nio.charset.Charset charset)Description copied from class:ByteBufDecodes this buffer's sub-region into a string with the specified character set. This method does not modifyreaderIndexorwriterIndexof this buffer.
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hashCode
public int hashCode()
Description copied from class:ByteBufReturns a hash code which was calculated from the content of this buffer. If there's a byte array which is equal to this array, both arrays should return the same value.
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equals
public boolean equals(java.lang.Object object)
Description copied from class:ByteBufDetermines if the content of the specified buffer is identical to the content of this array. 'Identical' here means:- the size of the contents of the two buffers are same and
- every single byte of the content of the two buffers are same.
ByteBuf.readerIndex()norByteBuf.writerIndex(). This method also returnsfalsefornulland an object which is not an instance ofByteBuftype.
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compareTo
public int compareTo(ByteBuf bytebuf)
Description copied from class:ByteBufCompares the content of the specified buffer to the content of this buffer. Comparison is performed in the same manner with the string comparison functions of various languages such asstrcmp,memcmpandString.compareTo(String).
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toString
public java.lang.String toString()
Description copied from class:ByteBufReturns the string representation of this buffer. This method does not necessarily return the whole content of the buffer but returns the values of the key properties such asByteBuf.readerIndex(),ByteBuf.writerIndex()andByteBuf.capacity().
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