PublisherInputStream (Helidon 1.3.0 API)

java.lang.Object
- java.io.InputStream
- - io.helidon.media.common.PublisherInputStream

All Implemented Interfaces:

Flow.Publisher<DataChunk>, Closeable, AutoCloseable
```
public class PublisherInputStream
extends InputStream
implements Flow.Publisher<DataChunk>
```
An subscriber that can subscribe to a source of ByteBuffer data chunks and then make them available for consumption via standard blocking InputStream API.

Constructor Summary

Constructors
Constructor Description

PublisherInputStream(Flow.Publisher<DataChunk> originalPublisher)
Wraps the supplied publisher and adds a blocking InputStream based nature.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`int`	`read()`
`void`	`subscribe(Flow.Subscriber<? super DataChunk> subscriber)`	Adds the given Subscriber if possible.

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

- Constructor Detail
  - PublisherInputStream
```
public PublisherInputStream(Flow.Publisher<DataChunk> originalPublisher)
```
    Wraps the supplied publisher and adds a blocking InputStream based nature. It is illegal to subscribe to the returned publisher.
    
    Parameters:
    
    originalPublisher - the original publisher to wrap
- Method Detail
  - read
```
public int read()
         throws IOException
```
    Specified by:
    
    read in class InputStream
    
    Throws:
    
    IOException
  - subscribe
```
public void subscribe(Flow.Subscriber<? super DataChunk> subscriber)
```
    Description copied from interface: Flow.Publisher
    
    Adds the given Subscriber if possible. If already subscribed, or the attempt to subscribe fails due to policy violations or errors, the Subscriber's onError method is invoked with an IllegalStateException. Otherwise, the Subscriber's onSubscribe method is invoked with a new Flow.Subscription. Subscribers may enable receiving items by invoking the request method of this Subscription, and may unsubscribe by invoking its cancel method.
    
    Specified by:
    
    subscribe in interface Flow.Publisher<DataChunk>
    
    Parameters:
    
    subscriber - the subscriber