org.apache.cassandra.transport

Class CBUtil

java.lang.Object

org.apache.cassandra.transport.CBUtil

public abstract class CBUtil
extends java.lang.Object

ByteBuf utility methods. Note that contrarily to ByteBufferUtil, these method do "read" the ByteBuf advancing its (read) position. They also write by advancing the write position. Functions are also provided to create ByteBuf while avoiding copies.

Field Summary

Fields

Modifier and Type	Field and Description
static io.netty.buffer.ByteBufAllocator	allocator
static boolean	USE_HEAP_ALLOCATOR

Method Summary

Modifier and Type	Method and Description
static int	encodedUTF8Length(java.lang.String str) Java uses a Modified UTF-8, whereas Netty uses UTF-8 proper...
static java.nio.ByteBuffer	readBoundValue(io.netty.buffer.ByteBuf cb, ProtocolVersion protocolVersion)
static byte[]	readBytes(io.netty.buffer.ByteBuf cb)
static java.util.Map<java.lang.String,java.nio.ByteBuffer>	readBytesMap(io.netty.buffer.ByteBuf cb)
static ConsistencyLevel	readConsistencyLevel(io.netty.buffer.ByteBuf cb)
static <T extends java.lang.Enum<T>> T	readEnumValue(java.lang.Class<T> enumType, io.netty.buffer.ByteBuf cb)
static java.net.InetSocketAddress	readInet(io.netty.buffer.ByteBuf cb)
static java.net.InetAddress	readInetAddr(io.netty.buffer.ByteBuf cb)
static java.lang.String	readLongString(io.netty.buffer.ByteBuf cb)
static Pair<java.util.List<java.lang.String>,java.util.List<java.nio.ByteBuffer>>	readNameAndValueList(io.netty.buffer.ByteBuf cb, ProtocolVersion protocolVersion)
static byte[]	readRawBytes(io.netty.buffer.ByteBuf cb)
static java.lang.String	readString(io.netty.buffer.ByteBuf cb)
static java.util.List<java.lang.String>	readStringList(io.netty.buffer.ByteBuf cb)
static java.util.Map<java.lang.String,java.lang.String>	readStringMap(io.netty.buffer.ByteBuf cb)
static java.util.Map<java.lang.String,java.util.List<java.lang.String>>	readStringToStringListMap(io.netty.buffer.ByteBuf cb)
static java.util.UUID	readUUID(io.netty.buffer.ByteBuf cb)
static java.nio.ByteBuffer	readValue(io.netty.buffer.ByteBuf cb)
static java.util.List<java.nio.ByteBuffer>	readValueList(io.netty.buffer.ByteBuf cb, ProtocolVersion protocolVersion)
static java.nio.ByteBuffer	readValueNoCopy(io.netty.buffer.ByteBuf cb)
static int	sizeOfAsciiString(java.lang.String str) Returns the ecoding size of a US-ASCII string.
static int	sizeOfBytes(byte[] bytes)
static int	sizeOfBytesMap(java.util.Map<java.lang.String,java.nio.ByteBuffer> m)
static int	sizeOfConsistencyLevel(ConsistencyLevel consistency)
static <T extends java.lang.Enum<T>> int	sizeOfEnumValue(T enumValue)
static int	sizeOfInet(java.net.InetSocketAddress inet)
static int	sizeOfInetAddr(java.net.InetAddress inetAddr)
static int	sizeOfLongString(java.lang.String str)
static int	sizeOfString(java.lang.String str)
static int	sizeOfStringList(java.util.List<java.lang.String> l)
static int	sizeOfStringMap(java.util.Map<java.lang.String,java.lang.String> m)
static int	sizeOfStringToStringListMap(java.util.Map<java.lang.String,java.util.List<java.lang.String>> m)
static int	sizeOfUUID(java.util.UUID uuid)
static int	sizeOfValue(byte[] bytes)
static int	sizeOfValue(java.nio.ByteBuffer bytes)
static int	sizeOfValue(int valueSize)
static int	sizeOfValueList(java.util.List<java.nio.ByteBuffer> values)
static void	writeAsciiString(java.lang.String str, io.netty.buffer.ByteBuf cb) Write US-ASCII strings.
static void	writeBytes(byte[] bytes, io.netty.buffer.ByteBuf cb)
static void	writeBytesMap(java.util.Map<java.lang.String,java.nio.ByteBuffer> m, io.netty.buffer.ByteBuf cb)
static void	writeConsistencyLevel(ConsistencyLevel consistency, io.netty.buffer.ByteBuf cb)
static <T extends java.lang.Enum<T>> void	writeEnumValue(T enumValue, io.netty.buffer.ByteBuf cb)
static void	writeInet(java.net.InetSocketAddress inet, io.netty.buffer.ByteBuf cb)
static void	writeInetAddr(java.net.InetAddress inetAddr, io.netty.buffer.ByteBuf cb)
static void	writeLongString(java.lang.String str, io.netty.buffer.ByteBuf cb)
static void	writeString(java.lang.String str, io.netty.buffer.ByteBuf cb)
static void	writeStringList(java.util.List<java.lang.String> l, io.netty.buffer.ByteBuf cb)
static void	writeStringMap(java.util.Map<java.lang.String,java.lang.String> m, io.netty.buffer.ByteBuf cb)
static void	writeStringToStringListMap(java.util.Map<java.lang.String,java.util.List<java.lang.String>> m, io.netty.buffer.ByteBuf cb)
static void	writeUUID(java.util.UUID uuid, io.netty.buffer.ByteBuf cb)
static void	writeValue(byte[] bytes, io.netty.buffer.ByteBuf cb)
static void	writeValue(java.nio.ByteBuffer bytes, io.netty.buffer.ByteBuf cb)
static void	writeValueList(java.util.List<java.nio.ByteBuffer> values, io.netty.buffer.ByteBuf cb)

Methods inherited from class java.lang.Object

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

Field Detail

USE_HEAP_ALLOCATOR

public static final boolean USE_HEAP_ALLOCATOR

allocator

public static final io.netty.buffer.ByteBufAllocator allocator

Method Detail

readString

public static java.lang.String readString(io.netty.buffer.ByteBuf cb)

writeAsciiString

public static void writeAsciiString(java.lang.String str,
                                    io.netty.buffer.ByteBuf cb)

Write US-ASCII strings. It does not work if containing any char > 0x007F (127)

Parameters:

str, - satisfies AsciiType, i.e. seven-bit ASCII, a.k.a. ISO646-US

writeString

public static void writeString(java.lang.String str,
                               io.netty.buffer.ByteBuf cb)

sizeOfString

public static int sizeOfString(java.lang.String str)

encodedUTF8Length

public static int encodedUTF8Length(java.lang.String str)

Java uses a Modified UTF-8, whereas Netty uses UTF-8 proper... this means that the encoded UTF8 lengths do not match, and you must be careful to use the correct length method... When using ByteBufUtil.reserveAndWriteUtf8(ByteBuf, CharSequence, int) or similiar logic, you must use this method. When using DataOutput.writeUTF(String) you must use TypeSizes.encodedUTF8Length(String).

See Also:

Modified UTF 8

sizeOfAsciiString

public static int sizeOfAsciiString(java.lang.String str)

Returns the ecoding size of a US-ASCII string. It does not work if containing any char > 0x007F (127)

Parameters:

str, - satisfies AsciiType, i.e. seven-bit ASCII, a.k.a. ISO646-US

readLongString

public static java.lang.String readLongString(io.netty.buffer.ByteBuf cb)

writeLongString

public static void writeLongString(java.lang.String str,
                                   io.netty.buffer.ByteBuf cb)

sizeOfLongString

public static int sizeOfLongString(java.lang.String str)

readBytes

public static byte[] readBytes(io.netty.buffer.ByteBuf cb)

writeBytes

public static void writeBytes(byte[] bytes,
                              io.netty.buffer.ByteBuf cb)

sizeOfBytes

public static int sizeOfBytes(byte[] bytes)

readBytesMap

public static java.util.Map<java.lang.String,java.nio.ByteBuffer> readBytesMap(io.netty.buffer.ByteBuf cb)

writeBytesMap

public static void writeBytesMap(java.util.Map<java.lang.String,java.nio.ByteBuffer> m,
                                 io.netty.buffer.ByteBuf cb)

sizeOfBytesMap

public static int sizeOfBytesMap(java.util.Map<java.lang.String,java.nio.ByteBuffer> m)

readConsistencyLevel

public static ConsistencyLevel readConsistencyLevel(io.netty.buffer.ByteBuf cb)

writeConsistencyLevel

public static void writeConsistencyLevel(ConsistencyLevel consistency,
                                         io.netty.buffer.ByteBuf cb)

sizeOfConsistencyLevel

public static int sizeOfConsistencyLevel(ConsistencyLevel consistency)

readEnumValue

public static <T extends java.lang.Enum<T>> T readEnumValue(java.lang.Class<T> enumType,
                                                            io.netty.buffer.ByteBuf cb)

writeEnumValue

public static <T extends java.lang.Enum<T>> void writeEnumValue(T enumValue,
                                                                io.netty.buffer.ByteBuf cb)

sizeOfEnumValue

public static <T extends java.lang.Enum<T>> int sizeOfEnumValue(T enumValue)

readUUID

public static java.util.UUID readUUID(io.netty.buffer.ByteBuf cb)

writeUUID

public static void writeUUID(java.util.UUID uuid,
                             io.netty.buffer.ByteBuf cb)

sizeOfUUID

public static int sizeOfUUID(java.util.UUID uuid)

readStringList

public static java.util.List<java.lang.String> readStringList(io.netty.buffer.ByteBuf cb)

writeStringList

public static void writeStringList(java.util.List<java.lang.String> l,
                                   io.netty.buffer.ByteBuf cb)

sizeOfStringList

public static int sizeOfStringList(java.util.List<java.lang.String> l)

readStringMap

public static java.util.Map<java.lang.String,java.lang.String> readStringMap(io.netty.buffer.ByteBuf cb)

writeStringMap

public static void writeStringMap(java.util.Map<java.lang.String,java.lang.String> m,
                                  io.netty.buffer.ByteBuf cb)

sizeOfStringMap

public static int sizeOfStringMap(java.util.Map<java.lang.String,java.lang.String> m)

readStringToStringListMap

public static java.util.Map<java.lang.String,java.util.List<java.lang.String>> readStringToStringListMap(io.netty.buffer.ByteBuf cb)

writeStringToStringListMap

public static void writeStringToStringListMap(java.util.Map<java.lang.String,java.util.List<java.lang.String>> m,
                                              io.netty.buffer.ByteBuf cb)

sizeOfStringToStringListMap

public static int sizeOfStringToStringListMap(java.util.Map<java.lang.String,java.util.List<java.lang.String>> m)

readValue

public static java.nio.ByteBuffer readValue(io.netty.buffer.ByteBuf cb)

readValueNoCopy

public static java.nio.ByteBuffer readValueNoCopy(io.netty.buffer.ByteBuf cb)

readBoundValue

public static java.nio.ByteBuffer readBoundValue(io.netty.buffer.ByteBuf cb,
                                                 ProtocolVersion protocolVersion)

writeValue

public static void writeValue(byte[] bytes,
                              io.netty.buffer.ByteBuf cb)

writeValue

public static void writeValue(java.nio.ByteBuffer bytes,
                              io.netty.buffer.ByteBuf cb)

sizeOfValue

public static int sizeOfValue(byte[] bytes)

sizeOfValue

public static int sizeOfValue(java.nio.ByteBuffer bytes)

sizeOfValue

public static int sizeOfValue(int valueSize)

readValueList

public static java.util.List<java.nio.ByteBuffer> readValueList(io.netty.buffer.ByteBuf cb,
                                                                ProtocolVersion protocolVersion)

writeValueList

public static void writeValueList(java.util.List<java.nio.ByteBuffer> values,
                                  io.netty.buffer.ByteBuf cb)

sizeOfValueList

public static int sizeOfValueList(java.util.List<java.nio.ByteBuffer> values)

readNameAndValueList

public static Pair<java.util.List<java.lang.String>,java.util.List<java.nio.ByteBuffer>> readNameAndValueList(io.netty.buffer.ByteBuf cb,
                                                                                                              ProtocolVersion protocolVersion)

readInet

public static java.net.InetSocketAddress readInet(io.netty.buffer.ByteBuf cb)

writeInet

public static void writeInet(java.net.InetSocketAddress inet,
                             io.netty.buffer.ByteBuf cb)

sizeOfInet

public static int sizeOfInet(java.net.InetSocketAddress inet)

readInetAddr

public static java.net.InetAddress readInetAddr(io.netty.buffer.ByteBuf cb)

writeInetAddr

public static void writeInetAddr(java.net.InetAddress inetAddr,
                                 io.netty.buffer.ByteBuf cb)

sizeOfInetAddr

public static int sizeOfInetAddr(java.net.InetAddress inetAddr)

readRawBytes

public static byte[] readRawBytes(io.netty.buffer.ByteBuf cb)