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Java Source Code / Java Documentation » Sevlet Container » apache tomcat 6.0.14 » org.apache.jk.common 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   org.apache.jk.core.Msg
      org.apache.jk.common.MsgAjp

MsgAjp
public class MsgAjp extends Msg (Code)
A single packet for communication between the web server and the container. Designed to be reused many times with no creation of garbage. Understands the format of data types for these packets. Can be used (somewhat confusingly) for both incoming and outgoing packets. See Ajp14/Ajp13Packet.java.
author:
   Henri Gomez [hgomez@apache.org]
author:
   Dan Milstein [danmil@shore.net]
author:
   Keith Wannamaker [Keith@Wannamaker.org]
author:
   Kevin Seguin
author:
   Costin Manolache



Constructor Summary
public  MsgAjp(int bsize)
    
public  MsgAjp()
     No arg constructor.

Method Summary
public  voidappendByte(int val)
    
public  voidappendByteChunk(ByteChunk bc)
    
public  voidappendBytes(MessageBytes mb)
     Write a String out at the current write position.
public  voidappendBytes(byte b, int off, int numBytes)
     Copy a chunk of bytes into the packet, starting at the current write position.
public  voidappendInt(int val)
     Add an int.
public  voidappendLongInt(int val)
    
public  voiddump(String msg)
    
public  voidend()
     For a packet to be sent to the web server, finish the process of accumulating data and write the length of the data payload into the header.
public  byte[]getBuffer()
    
public  bytegetByte()
    
public  voidgetBytes(MessageBytes mb)
    
public  intgetBytes(byte dest)
     Copy a chunk of bytes from the packet into an array and advance the read position past the chunk.
public  intgetHeaderLength()
    
public  intgetInt()
     Read an integer from packet, and advance the read position past it.
public  intgetLen()
    
public  intgetLongInt()
     Read a 32 bits integer from packet, and advance the read position past it.
public static  StringhexLine(byte buf, int start, int len)
    
public  bytepeekByte()
    
public  intpeekInt()
    
public  intprocessHeader()
    
public  voidreset()
     Prepare this packet for accumulating a message from the container to the web server.


Constructor Detail
MsgAjp
public MsgAjp(int bsize)(Code)
Constructor that takes a buffer size



MsgAjp
public MsgAjp()(Code)
No arg constructor.




Method Detail
appendByte
public void appendByte(int val)(Code)



appendByteChunk
public void appendByteChunk(ByteChunk bc) throws IOException(Code)



appendBytes
public void appendBytes(MessageBytes mb) throws IOException(Code)
Write a String out at the current write position. Strings are encoded with the length in two bytes first, then the string, and then a terminating \0 (which is not included in the encoded length). The terminator is for the convenience of the C code, where it saves a round of copying. A null string is encoded as a string with length 0.



appendBytes
public void appendBytes(byte b, int off, int numBytes)(Code)
Copy a chunk of bytes into the packet, starting at the current write position. The chunk of bytes is encoded with the length in two bytes first, then the data itself, and finally a terminating \0 (which is not included in the encoded length).
Parameters:
  b - The array from which to copy bytes.
Parameters:
  off - The offset into the array at which to start copying
Parameters:
  numBytes - The number of bytes to copy.



appendInt
public void appendInt(int val)(Code)
Add an int.
Parameters:
  val - The integer to write.



appendLongInt
public void appendLongInt(int val)(Code)



dump
public void dump(String msg)(Code)



end
public void end()(Code)
For a packet to be sent to the web server, finish the process of accumulating data and write the length of the data payload into the header.



getBuffer
public byte[] getBuffer()(Code)



getByte
public byte getByte()(Code)



getBytes
public void getBytes(MessageBytes mb)(Code)



getBytes
public int getBytes(byte dest)(Code)
Copy a chunk of bytes from the packet into an array and advance the read position past the chunk. See appendBytes() for details on the encoding. The number of bytes copied.



getHeaderLength
public int getHeaderLength()(Code)



getInt
public int getInt()(Code)
Read an integer from packet, and advance the read position past it. Integers are encoded as two unsigned bytes with the high-order byte first, and, as far as I can tell, in little-endian order within each byte.



getLen
public int getLen()(Code)



getLongInt
public int getLongInt()(Code)
Read a 32 bits integer from packet, and advance the read position past it. Integers are encoded as four unsigned bytes with the high-order byte first, and, as far as I can tell, in little-endian order within each byte.



hexLine
public static String hexLine(byte buf, int start, int len)(Code)



peekByte
public byte peekByte()(Code)



peekInt
public int peekInt()(Code)



processHeader
public int processHeader()(Code)



reset
public void reset()(Code)
Prepare this packet for accumulating a message from the container to the web server. Set the write position to just after the header (but leave the length unwritten, because it is as yet unknown).



Methods inherited from org.apache.jk.core.Msg
abstract public void appendByte(int val)(Code)(Java Doc)
abstract public void appendByteChunk(ByteChunk bc) throws IOException(Code)(Java Doc)
abstract public void appendBytes(MessageBytes mb) throws IOException(Code)(Java Doc)
abstract public void appendBytes(byte b, int off, int numBytes)(Code)(Java Doc)
abstract public void appendInt(int val)(Code)(Java Doc)
abstract public void appendLongInt(int val)(Code)(Java Doc)
abstract public void dump(String msg)(Code)(Java Doc)
abstract public void end()(Code)(Java Doc)
abstract public byte[] getBuffer()(Code)(Java Doc)
abstract public byte getByte()(Code)(Java Doc)
abstract public void getBytes(MessageBytes mb)(Code)(Java Doc)
abstract public int getBytes(byte dest)(Code)(Java Doc)
abstract public int getHeaderLength()(Code)(Java Doc)
abstract public int getInt()(Code)(Java Doc)
abstract public int getLen()(Code)(Java Doc)
abstract public int getLongInt()(Code)(Java Doc)
public static String hexLine(byte buf, int start, int len)(Code)(Java Doc)
abstract public byte peekByte()(Code)(Java Doc)
abstract public int peekInt()(Code)(Java Doc)
abstract public int processHeader()(Code)(Java Doc)
abstract public void reset()(Code)(Java Doc)

Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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