org.jenkinsci.remoting.nio

Class SelectableFileChannelFactory

java.lang.Object

org.jenkinsci.remoting.nio.SelectableFileChannelFactory

public class SelectableFileChannelFactory
extends Object

Extracts out SelectableChannel from InputStream or OutputStream. This hides the hack that works around the fact that FileChannel is not a SelectableChannel.

JDK didn't make FileChannel selectable because it's not selectable on Windows. But on POSIX, select API does support arbitrary file descriptors, including pipes and regular files.

Methods on this class takes various JDK objects that own FileDescriptor and creates a SocketChannel object that points to the same file descriptor, as a hack. Note that since it is not a real socket, various socket specific operations on SocketChannel will fail, most notably Object.toString()

Since:

2.38

Author:

Kohsuke Kawaguchi

Constructor Summary

Constructors

Constructor and Description
SelectableFileChannelFactory()

Method Summary

Methods

Modifier and Type	Method and Description
SocketChannel	create(FileDescriptor fd)
SocketChannel	create(FileInputStream in)
SocketChannel	create(FileOutputStream out)
SocketChannel	create(InputStream in)
SocketChannel	create(OutputStream out)
protected FileInputStream	unwrap(InputStream i)
protected FileOutputStream	unwrap(OutputStream i)

Methods inherited from class java.lang.Object

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

Constructor Detail

SelectableFileChannelFactory

public SelectableFileChannelFactory()

Method Detail

unwrap

protected FileInputStream unwrap(InputStream i)

unwrap

protected FileOutputStream unwrap(OutputStream i)

create

public SocketChannel create(InputStream in)
                     throws IOException

Throws:

IOException

create

public SocketChannel create(OutputStream out)
                     throws IOException

Throws:

IOException

create

public SocketChannel create(FileInputStream in)
                     throws IOException

Throws:

IOException

create

public SocketChannel create(FileOutputStream out)
                     throws IOException

Throws:

IOException

create

public SocketChannel create(FileDescriptor fd)