Class AsyncProxyServlet.StreamReader

java.lang.Object

org.eclipse.jetty.util.IteratingCallback

org.eclipse.jetty.proxy.AsyncProxyServlet.StreamReader

All Implemented Interfaces:

EventListener, javax.servlet.ReadListener, Callback, Invocable

Enclosing class:

AsyncProxyServlet

protected class AsyncProxyServlet.StreamReader
extends IteratingCallback
implements javax.servlet.ReadListener

Nested Class Summary

Nested classes/interfaces inherited from class IteratingCallback

IteratingCallback.Action

Nested classes/interfaces inherited from interface Callback

Callback.Completable, Callback.Completing, Callback.Nested

Nested classes/interfaces inherited from interface Invocable

Invocable.InvocationType

Field Summary

Fields

Modifier and Type	Field	Description
private final byte[]	buffer
private final DeferredContentProvider	provider
private final Request	proxyRequest
private final javax.servlet.http.HttpServletRequest	request
private final javax.servlet.http.HttpServletResponse	response

Fields inherited from interface Callback

NOOP

Fields inherited from interface Invocable

__nonBlocking

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	StreamReader(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response, Request proxyRequest, DeferredContentProvider provider)

Method Summary

Modifier and Type	Method	Description
void	failed(Throwable x)	Method to invoke when the asynchronous sub-task fails, or to fail the overall asynchronous task and therefore terminate the iteration.
void	onAllDataRead()
void	onDataAvailable()
void	onError(Throwable t)
protected void	onRequestContent(javax.servlet.http.HttpServletRequest request, Request proxyRequest, DeferredContentProvider provider, byte[] buffer, int offset, int length, Callback callback)
protected IteratingCallback.Action	process()	Method called by IteratingCallback.iterate() to process the asynchronous sub-task.

Methods inherited from class IteratingCallback

close, isClosed, isFailed, isSucceeded, iterate, onCompleteFailure, onCompleteSuccess, reset, succeeded, toString

Methods inherited from class Object

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

Methods inherited from interface Invocable

getInvocationType

Field Details

buffer

private final byte[] buffer

request

private final javax.servlet.http.HttpServletRequest request

response

private final javax.servlet.http.HttpServletResponse response

proxyRequest

private final Request proxyRequest

provider

private final DeferredContentProvider provider

Constructor Details

StreamReader

protected StreamReader(javax.servlet.http.HttpServletRequest request,
 javax.servlet.http.HttpServletResponse response,
 Request proxyRequest,
 DeferredContentProvider provider)

Method Details

onDataAvailable

public void onDataAvailable()
                     throws IOException

Specified by:

onDataAvailable in interface javax.servlet.ReadListener

Throws:

IOException

onAllDataRead

public void onAllDataRead()
                   throws IOException

Specified by:

onAllDataRead in interface javax.servlet.ReadListener

Throws:

IOException

onError

public void onError(Throwable t)

Specified by:

onError in interface javax.servlet.ReadListener

process

protected IteratingCallback.Action process()
                                    throws Exception

Description copied from class: IteratingCallback

Method called by IteratingCallback.iterate() to process the asynchronous sub-task.

Implementations must initiate the asynchronous execution of the sub-task (if any) and return an appropriate action:

• IteratingCallback.Action.IDLE when no sub tasks are available for execution but the overall job is not completed yet
• IteratingCallback.Action.SCHEDULED when the sub task asynchronous execution has been started
• IteratingCallback.Action.SUCCEEDED when the overall job is completed

Specified by:

process in class IteratingCallback

Returns:

the appropriate Action

Throws:

Exception

onRequestContent

protected void onRequestContent(javax.servlet.http.HttpServletRequest request,
 Request proxyRequest,
 DeferredContentProvider provider,
 byte[] buffer,
 int offset,
 int length,
 Callback callback)

failed

public void failed(Throwable x)

Description copied from class: IteratingCallback

Method to invoke when the asynchronous sub-task fails, or to fail the overall asynchronous task and therefore terminate the iteration.

Subclasses that override this method must always remember to call super.failed(Throwable).

Eventually, IteratingCallback.onCompleteFailure(Throwable) is called, either by the caller thread or by the processing thread.

Specified by:

failed in interface Callback

Overrides:

failed in class IteratingCallback

Parameters:

x - the reason for the operation failure

See Also:

• IteratingCallback.isFailed()