com.caucho.hessian.micro
Class MicroHessianInput

java.lang.Object
  com.caucho.hessian.micro.MicroHessianInput

public class MicroHessianInput
extends Object

Input stream for Hessian requests, compatible with microedition Java. It only uses classes and types available to J2ME. In particular, it does not have any support for the <double> type.

MicroHessianInput does not depend on any classes other than in J2ME, so it can be extracted independently into a smaller package.

MicroHessianInput is unbuffered, so any client needs to provide its own buffering.

 InputStream is = ...; // from http connection
 MicroHessianInput in = new MicroHessianInput(is);
 String value;

 in.startReply();         // read reply header
 value = in.readString(); // read string value
 in.completeReply();      // read reply footer
 

Field Summary

protected InputStream

is

Constructor Summary

MicroHessianInput()
Creates an uninitialized Hessian input stream.

MicroHessianInput(InputStream is)
Creates a new Hessian input stream, initialized with an underlying input stream.

Method Summary

void	completeReply() Completes reading the call A successful completion will have a single value: z
protected IOException	expect(String expect, int ch)
void	init(InputStream is) Initialize the hessian stream with the underlying input stream.
protected IOException	protocolException(String message)
boolean	readBoolean() Reads a boolean T F
byte[]	readBytes() Reads a byte array B b16 b8 data value
int	readInt() Reads an integer I b32 b24 b16 b8
long	readLong() Reads a long L b64 b56 b48 b40 b32 b24 b16 b8
Object	readObject(Class expectedClass) Reads an arbitrary object the input stream.
String	readString() Reads a string S b16 b8 string value
protected String	readStringImpl(int length) Reads a string from the underlying stream.
long	readUTCDate() Reads a date.
void	startReply() Starts reading the reply A successful completion will have a single value: r x01 x00

Methods inherited from class java.lang.Object

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

Field Detail

is

protected InputStream is

Constructor Detail

MicroHessianInput

public MicroHessianInput(InputStream is)

Creates a new Hessian input stream, initialized with an underlying input stream.

Parameters:

is - the underlying input stream.

MicroHessianInput

public MicroHessianInput()

Creates an uninitialized Hessian input stream.

Method Detail

init

public void init(InputStream is)

Initialize the hessian stream with the underlying input stream.

startReply

public void startReply()
                throws IOException

Starts reading the reply

A successful completion will have a single value:

 r x01 x00
 

Throws:

IOException

completeReply

public void completeReply()
                   throws IOException

Completes reading the call

A successful completion will have a single value:

 z
 

Throws:

IOException

readBoolean

public boolean readBoolean()
                    throws IOException

Reads a boolean

 T
 F
 

Throws:

IOException

readInt

public int readInt()
            throws IOException

Reads an integer

 I b32 b24 b16 b8
 

Throws:

IOException

readLong

public long readLong()
              throws IOException

Reads a long

 L b64 b56 b48 b40 b32 b24 b16 b8
 

Throws:

IOException

readUTCDate

public long readUTCDate()
                 throws IOException

Reads a date.

 T b64 b56 b48 b40 b32 b24 b16 b8
 

Throws:

IOException

readString

public String readString()
                  throws IOException

Reads a string

 S b16 b8 string value
 

Throws:

IOException

readBytes

public byte[] readBytes()
                 throws IOException

Reads a byte array

 B b16 b8 data value
 

Throws:

IOException

readObject

public Object readObject(Class expectedClass)
                  throws IOException

Reads an arbitrary object the input stream.

Throws:

IOException

readStringImpl

protected String readStringImpl(int length)
                         throws IOException

Reads a string from the underlying stream.

Throws:

IOException

expect

protected IOException expect(String expect,
                             int ch)

protocolException

protected IOException protocolException(String message)