org.apache.hc.core5.http.nio.entity

类 DigestingEntityProducer

java.lang.Object

org.apache.hc.core5.http.nio.entity.DigestingEntityProducer

所有已实现的接口:

EntityDetails, AsyncDataProducer, AsyncEntityProducer, ResourceHolder

public class DigestingEntityProducer
extends Object
implements AsyncEntityProducer

AsyncEntityProducer decorator that calculates a digest hash from the data stream content and appends its value to the list of trailers.

从以下版本开始:

5.0

构造器概要

构造器

构造器和说明
DigestingEntityProducer(String algo, AsyncEntityProducer wrapped)

方法概要

限定符和类型	方法和说明
int	available() Returns the number of bytes immediately available for output.
void	failed(Exception cause) Triggered to signal a failure in data generation.
String	getContentEncoding() Returns content encoding of the entity, if known.
long	getContentLength() Returns length of the entity, if known.
String	getContentType() Returns content type of the entity, if known.
byte[]	getDigest() Returns digest hash.
Set<String>	getTrailerNames() Preliminary declaration of trailing headers.
boolean	isChunked() Returns chunked transfer hint for this entity.
boolean	isRepeatable() Determines whether the producer can consistently produce the same content after invocation of ResourceHolder.releaseResources().
void	produce(DataStreamChannel channel) Triggered to signal the ability of the underlying data channel to accept more data.
void	releaseResources()

从类继承的方法 java.lang.Object

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

构造器详细资料

DigestingEntityProducer

public DigestingEntityProducer(String algo,
                               AsyncEntityProducer wrapped)

方法详细资料

isRepeatable

public boolean isRepeatable()

从接口复制的说明: AsyncEntityProducer

Determines whether the producer can consistently produce the same content after invocation of ResourceHolder.releaseResources().

指定者:

isRepeatable 在接口中 AsyncEntityProducer

getContentLength

public long getContentLength()

从接口复制的说明: EntityDetails

Returns length of the entity, if known.

指定者:

getContentLength 在接口中 EntityDetails

getContentType

public String getContentType()

从接口复制的说明: EntityDetails

Returns content type of the entity, if known.

指定者:

getContentType 在接口中 EntityDetails

getContentEncoding

public String getContentEncoding()

从接口复制的说明: EntityDetails

Returns content encoding of the entity, if known.

指定者:

getContentEncoding 在接口中 EntityDetails

isChunked

public boolean isChunked()

从接口复制的说明: EntityDetails

Returns chunked transfer hint for this entity.

The behavior of wrapping entities is implementation dependent, but should respect the primary purpose.

指定者:

isChunked 在接口中 EntityDetails

getTrailerNames

public Set<String> getTrailerNames()

从接口复制的说明: EntityDetails

Preliminary declaration of trailing headers.

指定者:

getTrailerNames 在接口中 EntityDetails

available

public int available()

从接口复制的说明: AsyncDataProducer

Returns the number of bytes immediately available for output. This method can be used as a hint to control output events of the underlying I/O session.

指定者:

available 在接口中 AsyncDataProducer

返回:

the number of bytes immediately available for output

produce

public void produce(DataStreamChannel channel)
             throws IOException

从接口复制的说明: AsyncDataProducer

Triggered to signal the ability of the underlying data channel to accept more data. The data producer can choose to write data immediately inside the call or asynchronously at some later point.

指定者:

produce 在接口中 AsyncDataProducer

参数:

channel - the data channel capable to accepting more data.

抛出:

IOException

failed

public void failed(Exception cause)

从接口复制的说明: AsyncEntityProducer

Triggered to signal a failure in data generation.

指定者:

failed 在接口中 AsyncEntityProducer

参数:

cause - the cause of the failure.

releaseResources

public void releaseResources()

指定者:

releaseResources 在接口中 ResourceHolder

getDigest

public byte[] getDigest()

Returns digest hash.

返回:

the digest hash value.