Package org.apache.cassandra.transport

Class 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 Description
      static io.netty.buffer.ByteBufAllocator allocator  
      static boolean USE_HEAP_ALLOCATOR  

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static void addBytes​(java.nio.ByteBuffer src, io.netty.buffer.ByteBuf dest)  
      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 TimeUUID readTimeUUID​(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​(int valueSize)  
      static int sizeOfValue​(java.nio.ByteBuffer bytes)  
      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 writeUUID​(TimeUUID 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)

      • readTimeUUID

        public static TimeUUID readTimeUUID​(io.netty.buffer.ByteBuf cb)

      • writeUUID

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

      • writeUUID

        public static void writeUUID​(TimeUUID 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)

      • addBytes

        public static void addBytes​(java.nio.ByteBuffer src,
                            io.netty.buffer.ByteBuf dest)

      • 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)