InStream (elasticsearch-extend 3.2 API)

All Known Implementing Classes:

ByteArrayInStream
```
public interface InStream
```
A interface for classes providing an input stream of bytes. This interface is similar to the Java InputStream, but with a narrower interface to make it easier to implement.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`read(byte[] buf)`	Reads `buf.length` bytes from the input stream and stores them in the supplied buffer.

- Method Detail
  - read
```
void read(byte[] buf)
   throws IOException
```
    Reads buf.length bytes from the input stream and stores them in the supplied buffer.
    
    Parameters:
    
    buf - the buffer to receive the bytes
    
    Throws:
    
    IOException - if an I/O error occurs