Package io.activej.csp.process

Class AbstractChannelTransformer<S extends AbstractChannelTransformer<S,I,O>,I,O>

java.lang.Object

io.activej.csp.process.AbstractCommunicatingProcess

io.activej.csp.process.AbstractChannelTransformer<S,I,O>

All Implemented Interfaces:

io.activej.async.process.AsyncCloseable, io.activej.async.process.AsyncProcess, ChannelConsumerTransformer<O,ChannelConsumer<I>>, ChannelSupplierTransformer<I,ChannelSupplier<O>>, ChannelTransformer<I,O>, HasChannelInput<I>, HasChannelOutput<O>, WithChannelInput<S,I>, WithChannelOutput<S,O>, WithChannelTransformer<S,I,O>

Direct Known Subclasses:

ChannelByteChunker, ChannelByteRanger

public abstract class AbstractChannelTransformer<S extends AbstractChannelTransformer<S,I,O>,I,O>
extends AbstractCommunicatingProcess
implements WithChannelTransformer<S,I,O>

Field Summary

Fields

Modifier and Type	Field	Description
protected ChannelSupplier<I>	input
protected ChannelConsumer<O>	output

Fields inherited from interface io.activej.async.process.AsyncCloseable

STATIC

Constructor Summary

Constructors

Constructor	Description
AbstractChannelTransformer()

Method Summary

Modifier and Type	Method	Description
protected void	beforeProcess()
protected final void	doClose(@NotNull Exception e)	An operation which is executed in case of manual closing.
protected void	doProcess()	Describes the main operations of the communicating process.
ChannelInput<I>	getInput()
ChannelOutput<O>	getOutput()
protected void	onCleanup()
protected abstract @NotNull io.activej.promise.Promise<Void>	onItem(I item)
protected io.activej.promise.Promise<Void>	onProcessFinish()
protected io.activej.promise.Promise<Void>	onProcessStart()
protected final io.activej.promise.Promise<Void>	send(O item)
protected final io.activej.promise.Promise<Void>	sendEndOfStream()

Methods inherited from class io.activej.csp.process.AbstractCommunicatingProcess

afterProcess, close, closeEx, completeProcess, completeProcessEx, doSanitize, getProcessCompletion, isProcessComplete, isProcessStarted, sanitize, sanitize, sanitize, sanitize, startProcess

Methods inherited from class java.lang.Object

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

Methods inherited from interface io.activej.csp.dsl.WithChannelInput

withInput

Methods inherited from interface io.activej.csp.dsl.WithChannelOutput

withOutput

Methods inherited from interface io.activej.csp.dsl.WithChannelTransformer

transform, transform

Field Details

input

protected ChannelSupplier<I> input

output

protected ChannelConsumer<O> output

Constructor Details

AbstractChannelTransformer

public AbstractChannelTransformer()

Method Details

send

protected final io.activej.promise.Promise<Void> send(O item)

sendEndOfStream

protected final io.activej.promise.Promise<Void> sendEndOfStream()

onItem

@NotNull
protected abstract @NotNull io.activej.promise.Promise<Void> onItem(I item)

onProcessFinish

protected io.activej.promise.Promise<Void> onProcessFinish()

onProcessStart

protected io.activej.promise.Promise<Void> onProcessStart()

beforeProcess

protected void beforeProcess()

Overrides:

beforeProcess in class AbstractCommunicatingProcess

doProcess

protected void doProcess()

Description copied from class: AbstractCommunicatingProcess

Describes the main operations of the communicating process. May include interaction between input (ChannelSupplier) and output (ChannelConsumer).

Specified by:

doProcess in class AbstractCommunicatingProcess

getInput

public ChannelInput<I> getInput()

Specified by:

getInput in interface HasChannelInput<S extends AbstractChannelTransformer<S,I,O>>

getOutput

public ChannelOutput<O> getOutput()

Specified by:

getOutput in interface HasChannelOutput<S extends AbstractChannelTransformer<S,I,O>>

doClose

protected final void doClose(@NotNull
 @NotNull Exception e)

Description copied from class: AbstractCommunicatingProcess

An operation which is executed in case of manual closing.

Specified by:

doClose in class AbstractCommunicatingProcess

Parameters:

e - an exception thrown on closing

onCleanup

protected void onCleanup()