org.eclipse.jetty.client.util

Class InputStreamContentProvider

java.lang.Object

org.eclipse.jetty.client.util.InputStreamContentProvider

All Implemented Interfaces:

Closeable, AutoCloseable, Iterable<ByteBuffer>, ContentProvider, Callback, Invocable

public class InputStreamContentProvider
extends Object
implements ContentProvider, Callback, Closeable

A ContentProvider for an InputStream.

The input stream is read once and therefore fully consumed. Invocations to the iterator() method after the first will return an "empty" iterator because the stream has been consumed on the first invocation.

However, it is possible for subclasses to override onRead(byte[], int, int) to copy the content read from the stream to another location (for example a file), and be able to support multiple invocations of iterator(), returning the iterator provided by this class on the first invocation, and an iterator on the bytes copied to the other location for subsequent invocations.

It is possible to specify, at the constructor, a buffer size used to read content from the stream, by default 4096 bytes.

The InputStream passed to the constructor is by default closed when is it fully consumed (or when an exception is thrown while reading it), unless otherwise specified to the constructor.

Nested Class Summary

Nested classes/interfaces inherited from interface org.eclipse.jetty.client.api.ContentProvider

ContentProvider.Typed

Nested classes/interfaces inherited from interface org.eclipse.jetty.util.Callback

Callback.Completable, Callback.Completing, Callback.InvocableCallback, Callback.Nested

Nested classes/interfaces inherited from interface org.eclipse.jetty.util.thread.Invocable

Invocable.InvocationType

Field Summary

Fields inherited from interface org.eclipse.jetty.util.Callback

NOOP

Fields inherited from interface org.eclipse.jetty.util.thread.Invocable

__nonBlocking

Constructor Summary

Constructors

Constructor and Description
InputStreamContentProvider(InputStream stream)
InputStreamContentProvider(InputStream stream, int bufferSize)
InputStreamContentProvider(InputStream stream, int bufferSize, boolean autoClose)

Method Summary

Modifier and Type	Method and Description
void	close()
void	failed(Throwable failure) Callback invoked when the operation fails.
long	getLength()
Iterator<ByteBuffer>	iterator()

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.eclipse.jetty.client.api.ContentProvider

isReproducible

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Methods inherited from interface org.eclipse.jetty.util.Callback

combine, from, from, from, from, from, from, succeeded

Methods inherited from interface org.eclipse.jetty.util.thread.Invocable

combine, getInvocationType, getInvocationType, invokeNonBlocking, isNonBlockingInvocation

Constructor Detail

InputStreamContentProvider

public InputStreamContentProvider(InputStream stream)

InputStreamContentProvider

public InputStreamContentProvider(InputStream stream,
                                  int bufferSize)

InputStreamContentProvider

public InputStreamContentProvider(InputStream stream,
                                  int bufferSize,
                                  boolean autoClose)

Method Detail

getLength

public long getLength()

Specified by:

getLength in interface ContentProvider

Returns:

the content length, if known, or -1 if the content length is unknown

iterator

public Iterator<ByteBuffer> iterator()

Specified by:

iterator in interface Iterable<ByteBuffer>

close

public void close()

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

failed

public void failed(Throwable failure)

Description copied from interface: Callback

Callback invoked when the operation fails.

Specified by:

failed in interface Callback

Parameters:

failure - the reason for the operation failure