Package org.refcodes.io

Class AbstractInputStreamReceiver<DATA extends Serializable>

java.lang.Object

org.refcodes.component.AbstractConnectableAutomaton

org.refcodes.io.AbstractInputStreamReceiver<DATA>

Type Parameters:

DATA - The type of the datagram to be operated with.

All Implemented Interfaces:

org.refcodes.component.Closable, org.refcodes.component.Closable.CloseAutomaton, org.refcodes.component.ClosedAccessor, org.refcodes.component.ConnectableComponent, org.refcodes.component.ConnectableComponent.ConnectableAutomaton, org.refcodes.component.ConnectionStatusAccessor, org.refcodes.component.OpenedAccessor, BlockProvider<DATA>, BlockReceiver<DATA>, DatagramProvider<DATA>, DatagramReceiver<DATA>, Provider<DATA>, Receivable, Receiver<DATA>, org.refcodes.mixin.Releaseable

Direct Known Subclasses:

BidirectionalStreamConnectionTransceiverImpl, InputStreamConnectionReceiverImpl

public abstract class AbstractInputStreamReceiver<DATA extends Serializable>
extends org.refcodes.component.AbstractConnectableAutomaton
implements Receiver<DATA>

Abstract implementation of the Receiver interface. The open(InputStream), AbstractConnectableAutomaton.setConnectionStatus(ConnectionStatus) and AbstractConnectableAutomaton.isOpenable() methods are your hooks when extending this class.

Nested Class Summary

Nested classes/interfaces inherited from interface org.refcodes.component.Closable

org.refcodes.component.Closable.CloseAutomaton, org.refcodes.component.Closable.CloseBuilder<B extends org.refcodes.component.Closable.CloseBuilder<B>>

Nested classes/interfaces inherited from interface org.refcodes.component.ClosedAccessor

org.refcodes.component.ClosedAccessor.ClosedMutator, org.refcodes.component.ClosedAccessor.ClosedProperty

Nested classes/interfaces inherited from interface org.refcodes.component.ConnectableComponent

org.refcodes.component.ConnectableComponent.ConnectableAutomaton

Nested classes/interfaces inherited from interface org.refcodes.component.ConnectionStatusAccessor

org.refcodes.component.ConnectionStatusAccessor.ConnectionStatusMutator, org.refcodes.component.ConnectionStatusAccessor.ConnectionStatusProperty

Nested classes/interfaces inherited from interface org.refcodes.component.OpenedAccessor

org.refcodes.component.OpenedAccessor.OpenedMutator, org.refcodes.component.OpenedAccessor.OpenedProperty

Constructor Summary

Constructors

Constructor	Description
AbstractInputStreamReceiver()

Method Summary

Modifier and Type	Method	Description
void	close()
boolean	hasDatagram()	Checks for datagram.
protected boolean	isOpenable(InputStream aInputStream)	Checks if is openable.
protected void	open(InputStream aInputStream)	Open, see also ConnectionOpenable.open(Object).
DATA	readDatagram()	Reads (receives) the next datagram passed from a DatagramSender counterpart.
void	releaseAll()

Methods inherited from class org.refcodes.component.AbstractConnectableAutomaton

getConnectionStatus, isClosable, isClosed, isOpenable, isOpened, open, setConnectionStatus

Methods inherited from interface org.refcodes.component.Closable

closeIn, closeQuietly, closeUnchecked

Methods inherited from interface org.refcodes.component.Closable.CloseAutomaton

isClosable

Methods inherited from interface org.refcodes.component.ClosedAccessor

isClosed

Methods inherited from interface org.refcodes.component.ConnectionStatusAccessor

getConnectionStatus, isConnectionOpened

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.refcodes.component.OpenedAccessor

isOpened

Methods inherited from interface org.refcodes.io.Receiver

readDatagrams, readDatagrams

Constructor Detail

AbstractInputStreamReceiver

public AbstractInputStreamReceiver()

Method Detail

hasDatagram

public boolean hasDatagram()
                    throws org.refcodes.component.OpenException

Checks for datagram.

Specified by:

hasDatagram in interface Receivable

Returns:

true, if successful

Throws:

org.refcodes.component.OpenException - the open exception

readDatagram

public DATA readDatagram()
                  throws org.refcodes.component.OpenException,
                         InterruptedException

Reads (receives) the next datagram passed from a DatagramSender counterpart. In case none datagram is available, then this method blocks until one is available. To prevent blocking, use the DatagramReceiver extension's Receivable.hasDatagram() method to test beforehand whether a byte is available (in a multi-threaded usage scenario, Receivable.hasDatagram() is not a reliable indicator whether this method will block or not). When a Thread is waiting for a datagram to be read and Thread.interrupt() is being called, then the operation is aborted and an InterruptedException is thrown.

Specified by:

readDatagram in interface DatagramProvider<DATA extends Serializable>

Returns:

The next datagram sent from the DatagramSender counterpart.

Throws:

org.refcodes.component.OpenException - Thrown in case opening or accessing an open line (connection, junction, link) caused problems.

InterruptedException - Thrown when a Thread is waiting, sleeping, or otherwise occupied, and the Thread is interrupted, either before or during the activity.

releaseAll

public void releaseAll()

Specified by:

releaseAll in interface org.refcodes.mixin.Releaseable

close

public void close()
           throws org.refcodes.component.CloseException

Specified by:

close in interface org.refcodes.component.Closable

Overrides:

close in class org.refcodes.component.AbstractConnectableAutomaton

Throws:

org.refcodes.component.CloseException

open

protected void open(InputStream aInputStream)
             throws org.refcodes.component.OpenException

Open, see also ConnectionOpenable.open(Object).

Parameters:

aInputStream - the input stream

Throws:

org.refcodes.component.OpenException - the open exception

isOpenable

protected boolean isOpenable(InputStream aInputStream)

Checks if is openable. See also ConnectionOpenable.ConnectionOpenAutomaton.isOpenable(Object).

Parameters:

aInputStream - the input stream

Returns:

true, if is openable