InputOutputByteStream (IBM FHIR Server)

java.lang.Object
- com.ibm.fhir.persistence.util.InputOutputByteStream

```
@NotThreadSafe
public class InputOutputByteStream
extends Object
```
A byte buffer which supports both InputStream and OutputStream interfaces without needless copying of (potentially large) byte arrays. Not intended for multi-threaded access (no synchronization).

Nested Class Summary

Nested Classes
Modifier and Type Class Description

static class InputOutputByteStream.ReshapeStrategy
Strategy for how we resize the buffer.

Constructor Summary

Constructors
Constructor	Description
`InputOutputByteStream(byte[] adoptBuffer, int offset)`
`InputOutputByteStream(int initialCapacity)`	Create a buffer with the given capacity and default `InputOutputByteStream.ReshapeStrategy`
`InputOutputByteStream(int initialCapacity, InputOutputByteStream.ReshapeStrategy strat)`	Create a buffer with a given capacity and override the `InputOutputByteStream.ReshapeStrategy`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`InputStream`	`inputStream()`	Provide a new InputStream with its own dedicated position starting at 0 offset
`OutputStream`	`outputStream()`	Return a new output stream backed by the byte buffer managed by this.
`void`	`reset()`	Reset the offset to make the buffer appear empty.
`int`	`size()`	How many bytes have been written to the byte buffer

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

- Constructor Detail
  - InputOutputByteStream
```
public InputOutputByteStream(int initialCapacity)
```
    Create a buffer with the given capacity and default InputOutputByteStream.ReshapeStrategy
  - InputOutputByteStream
```
public InputOutputByteStream(byte[] adoptBuffer,
                             int offset)
```
  - InputOutputByteStream
```
public InputOutputByteStream(int initialCapacity,
                             InputOutputByteStream.ReshapeStrategy strat)
```
    Create a buffer with a given capacity and override the InputOutputByteStream.ReshapeStrategy
    
    Parameters:
    
    initialCapacity -
    
    strat -
- Method Detail
  - size
```
public int size()
```
    How many bytes have been written to the byte buffer
    
    Returns:
  - outputStream
```
public OutputStream outputStream()
```
    Return a new output stream backed by the byte buffer managed by this.
    
    Returns:
    
    Throws:
    
    IllegalStateException - if called after the mode has been flipped to read.
  - inputStream
```
public InputStream inputStream()
```
    Provide a new InputStream with its own dedicated position starting at 0 offset
    
    Returns:
  - reset
```
public void reset()
```
    Reset the offset to make the buffer appear empty. Does not change the current length (capacity). Note that any streams currently being used to read the data will end.