FrameReader (libthrift 0.15.0 API)

java.lang.Object
- org.apache.thrift.transport.sasl.FrameReader<T>

Type Parameters:

T - Header type.

Direct Known Subclasses:

DataFrameReader, SaslNegotiationFrameReader
```
public abstract class FrameReader<T extends FrameHeaderReader>
extends java.lang.Object
```
Read frames from a transport. Each frame has a header and a payload. A header will indicate the size of the payload and other informations about how to decode payload. Implementations should subclass it by providing a header reader implementation.

Constructor Summary

Constructors
Modifier Constructor Description

protected FrameReader(T header)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`clear()`	Reset the state of the reader so that it can be reused to read a new frame.
`T`	`getHeader()`
`int`	`getHeaderSize()`
`byte[]`	`getPayload()`
`int`	`getPayloadSize()`
`boolean`	`isComplete()`
`boolean`	`read(TTransport transport)`	(Nonblocking) Read available bytes out of the transport without blocking to wait for incoming data.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - FrameReader
```
protected FrameReader(T header)
```
- Method Detail
  - read
```
public boolean read(TTransport transport)
             throws TSaslNegotiationException,
                    TTransportException
```
    (Nonblocking) Read available bytes out of the transport without blocking to wait for incoming data.
    
    Parameters:
    
    transport - TTransport
    
    Returns:
    
    true if current frame is complete after read.
    
    Throws:
    
    TSaslNegotiationException - if fail to read back a valid sasl negotiation message.
    
    TTransportException - if io error.
  - getHeader
```
public T getHeader()
```
    Returns:
    
    header of the frame
  - getHeaderSize
```
public int getHeaderSize()
```
    Returns:
    
    number of bytes of the header
  - getPayload
```
public byte[] getPayload()
```
    Returns:
    
    byte array of the payload
  - getPayloadSize
```
public int getPayloadSize()
```
    Returns:
    
    size of the payload
  - isComplete
```
public boolean isComplete()
```
    Returns:
    
    true if the reader has fully read a frame
  - clear
```
public void clear()
```
    Reset the state of the reader so that it can be reused to read a new frame.