QueueInputStream (The Adobe Experience Manager SDK 2022.2.6276.20220205T222203Z-220100)

java.lang.Object
- java.io.InputStream
- - org.apache.commons.io.input.QueueInputStream

All Implemented Interfaces:

Closeable, AutoCloseable
```
public class QueueInputStream
extends InputStream
```
Simple alternative to JDK PipedInputStream; queue input stream provides what's written in queue output stream.
Example usage:
```
 QueueInputStream inputStream = new QueueInputStream();
 QueueOutputStream outputStream = inputStream.newQueueOutputStream();

 outputStream.write("hello world".getBytes(UTF_8));
 inputStream.read();
 
```
Unlike JDK PipedInputStream and PipedOutputStream, queue input/output streams may be used safely in a single thread or multiple threads. Also, unlike JDK classes, no special meaning is attached to initial or current thread. Instances can be used longer after initial threads exited.

Closing a QueueInputStream has no effect. The methods in this class can be called after the stream has been closed without generating an IOException.
Since:

2.9.0

See Also:

QueueOutputStream

Constructor Summary

Constructors
Constructor	Description
`QueueInputStream()`	Constructs a new instance with no limit to its internal buffer size.
`QueueInputStream(BlockingQueue<Integer> blockingQueue)`	Constructs a new instance with given buffer

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`QueueOutputStream`	`newQueueOutputStream()`	Creates a new QueueOutputStream instance connected to this.
`int`	`read()`	Reads and returns a single byte.

Methods inherited from class java.io.InputStream
available, close, mark, markSupported, nullInputStream, read, read, readAllBytes, readNBytes, readNBytes, reset, skip, transferTo

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

- Constructor Detail
  - QueueInputStream
```
public QueueInputStream()
```
    Constructs a new instance with no limit to its internal buffer size.
  - QueueInputStream
```
public QueueInputStream(BlockingQueue<Integer> blockingQueue)
```
    Constructs a new instance with given buffer
    
    Parameters:
    
    blockingQueue - backing queue for the stream
- Method Detail
  - newQueueOutputStream
```
public QueueOutputStream newQueueOutputStream()
```
    Creates a new QueueOutputStream instance connected to this. Writes to the output stream will be visible to this input stream.
    
    Returns:
    
    QueueOutputStream connected to this stream
  - read
```
public int read()
```
    Reads and returns a single byte.
    
    Specified by:
    
    read in class InputStream
    
    Returns:
    
    either the byte read or -1 if the end of the stream has been reached