org.apache.http.entity

Class BufferedHttpEntity

java.lang.Object

org.apache.http.entity.HttpEntityWrapper

org.apache.http.entity.BufferedHttpEntity

All Implemented Interfaces:

HttpEntity

public class BufferedHttpEntity
extends HttpEntityWrapper

A wrapping entity that buffers it content if necessary. The buffered entity is always repeatable. If the wrapped entity is repeatable itself, calls are passed through. If the wrapped entity is not repeatable, the content is read into a buffer once and provided from there as often as required.

Since:

4.0

Field Summary

Fields inherited from class org.apache.http.entity.HttpEntityWrapper

wrappedEntity

Constructor Summary

Constructors

Constructor and Description
BufferedHttpEntity(HttpEntity entity) Creates a new buffered entity wrapper.

Method Summary

Methods

Modifier and Type	Method and Description
InputStream	getContent() Returns a content stream of the entity.
long	getContentLength() Tells the length of the content, if known.
boolean	isChunked() Tells that this entity does not have to be chunked.
boolean	isRepeatable() Tells that this entity is repeatable.
boolean	isStreaming() Tells whether this entity depends on an underlying stream.
void	writeTo(OutputStream outStream) Writes the entity content out to the output stream.

Methods inherited from class org.apache.http.entity.HttpEntityWrapper

consumeContent, getContentEncoding, getContentType

Methods inherited from class java.lang.Object

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

Constructor Detail

BufferedHttpEntity

public BufferedHttpEntity(HttpEntity entity)
                   throws IOException

Creates a new buffered entity wrapper.

Parameters:

entity - the entity to wrap, not null

Throws:

IllegalArgumentException - if wrapped is null

IOException

Method Detail

getContentLength

public long getContentLength()

Description copied from interface: HttpEntity

Tells the length of the content, if known.

Specified by:

getContentLength in interface HttpEntity

Overrides:

getContentLength in class HttpEntityWrapper

Returns:

the number of bytes of the content, or a negative number if unknown. If the content length is known but exceeds Long.MAX_VALUE, a negative number is returned.

getContent

public InputStream getContent()
                       throws IOException

Description copied from interface: HttpEntity

Returns a content stream of the entity. Repeatable entities are expected to create a new instance of InputStream for each invocation of this method and therefore can be consumed multiple times. Entities that are not repeatable are expected to return the same InputStream instance and therefore may not be consumed more than once.

IMPORTANT: Please note all entity implementations must ensure that all allocated resources are properly deallocated after the InputStream.close() method is invoked.

Specified by:

getContent in interface HttpEntity

Overrides:

getContent in class HttpEntityWrapper

Returns:

content stream of the entity.

Throws:

IOException - if the stream could not be created

See Also:

HttpEntity.isRepeatable()

isChunked

public boolean isChunked()

Tells that this entity does not have to be chunked.

Specified by:

isChunked in interface HttpEntity

Overrides:

isChunked in class HttpEntityWrapper

Returns:

false

isRepeatable

public boolean isRepeatable()

Tells that this entity is repeatable.

Specified by:

isRepeatable in interface HttpEntity

Overrides:

isRepeatable in class HttpEntityWrapper

Returns:

true

writeTo

public void writeTo(OutputStream outStream)
             throws IOException

Description copied from interface: HttpEntity

Writes the entity content out to the output stream.

IMPORTANT: Please note all entity implementations must ensure that all allocated resources are properly deallocated when this method returns.

Specified by:

writeTo in interface HttpEntity

Overrides:

writeTo in class HttpEntityWrapper

Parameters:

outStream - the output stream to write entity content to

Throws:

IOException - if an I/O error occurs

isStreaming

public boolean isStreaming()

Description copied from interface: HttpEntity

Tells whether this entity depends on an underlying stream. Streamed entities that read data directly from the socket should return true. Self-contained entities should return false. Wrapping entities should delegate this call to the wrapped entity.

Specified by:

isStreaming in interface HttpEntity

Overrides:

isStreaming in class HttpEntityWrapper

Returns:

true if the entity content is streamed, false otherwise