Class AsyncProxyServlet.StreamReader

java.lang.Object

org.eclipse.jetty.util.IteratingCallback

org.eclipse.jetty.ee8.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.Combination, Callback.Completable, Callback.Completing, Callback.Nested

Nested classes/interfaces inherited from interface Invocable

Invocable.Callable, Invocable.InvocationType, Invocable.ReadyTask, Invocable.Task

Field Summary

Fields inherited from interface Callback

NOOP, NOT_CALLED

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, AsyncRequestContent content)

Method Summary

Modifier and Type	Method	Description
Invocable.InvocationType	getInvocationType()
void	onAllDataRead()
void	onDataAvailable()
void	onError(Throwable t)
protected void	onFailure(Throwable cause)	Invoked when the overall task has been aborted or failed.
protected void	onRequestContent(javax.servlet.http.HttpServletRequest request, Request proxyRequest, AsyncRequestContent content, 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

abort, close, failed, isAborted, isClosed, isFailed, isSucceeded, iterate, onAborted, onCompleted, onCompleteFailure, onCompleteSuccess, onSuccess, reset, succeeded, toString

Methods inherited from class Object

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

Methods inherited from interface Callback

completeWith

Constructor Details

StreamReader

protected StreamReader(javax.servlet.http.HttpServletRequest request,
 javax.servlet.http.HttpServletResponse response,
 Request proxyRequest,
 AsyncRequestContent content)

Method Details

onDataAvailable

public void onDataAvailable()

Specified by:

onDataAvailable in interface javax.servlet.ReadListener

onAllDataRead

public void onAllDataRead()

Specified by:

onAllDataRead in interface javax.servlet.ReadListener

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,
 AsyncRequestContent content,
 byte[] buffer,
 int offset,
 int length,
 Callback callback)

onFailure

protected void onFailure(Throwable cause)

Description copied from class: IteratingCallback

Invoked when the overall task has been aborted or failed.

Calls to this method are serialized with respect to IteratingCallback.onAborted(Throwable), IteratingCallback.process(), IteratingCallback.onCompleteFailure(Throwable) and IteratingCallback.onCompleted(Throwable).

Because onFailure can be called due to an IteratingCallback.abort(Throwable) or IteratingCallback.close() operation, it is possible that any resources passed to a IteratingCallback.Action.SCHEDULED operation may still be in use, and thus should not be recycled by this call. For example any buffers passed to a write operation should not be returned to a buffer pool by implementations of onFailure. Such resources may be discarded here, or safely recycled in a subsequent call to IteratingCallback.onCompleted(Throwable) or IteratingCallback.onCompleteFailure(Throwable), when the IteratingCallback.Action.SCHEDULED operation has completed.

Overrides:

onFailure in class IteratingCallback

Parameters:

cause - The cause of the failure or abort

See Also:

• IteratingCallback.onCompleted(Throwable)
• IteratingCallback.onCompleteFailure(Throwable)

getInvocationType

public Invocable.InvocationType getInvocationType()

Specified by:

getInvocationType in interface Invocable

Returns:

The InvocationType of this object