org.apache.http.entity
Class EntityTemplate

java.lang.Object
  org.apache.http.entity.AbstractHttpEntity
      org.apache.http.entity.EntityTemplate

All Implemented Interfaces:

HttpEntity

public class EntityTemplate
extends AbstractHttpEntity

Entity that delegates the process of content generation to a ContentProducer.

Since:

4.0

Field Summary

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

chunked, contentEncoding, contentType, OUTPUT_BUFFER_SIZE

Constructor Summary

EntityTemplate(ContentProducer contentproducer)

Method Summary

InputStream	getContent() Returns a content stream of the entity.
long	getContentLength() Tells the length of the content, if known.
boolean	isRepeatable() Tells if the entity is capable of producing its data more than once.
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.AbstractHttpEntity

consumeContent, getContentEncoding, getContentType, isChunked, setChunked, setContentEncoding, setContentEncoding, setContentType, setContentType, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

EntityTemplate

public EntityTemplate(ContentProducer contentproducer)

Method Detail

getContentLength

public long getContentLength()

Description copied from interface: HttpEntity

Tells the length of the content, if known.

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.

Returns:

content stream of the entity.

Throws:

IOException - if the stream could not be created

See Also:

HttpEntity.isRepeatable()

isRepeatable

public boolean isRepeatable()

Description copied from interface: HttpEntity

Tells if the entity is capable of producing its data more than once. A repeatable entity's getContent() and writeTo(OutputStream) methods can be called more than once whereas a non-repeatable entity's can not.

Returns:

true if the entity is repeatable, false otherwise.

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.

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.

Returns:

true if the entity content is streamed, false otherwise