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java.lang.Object org.apache.http.entity.AbstractHttpEntity org.apache.http.nio.entity.NFileEntity
public class NFileEntity
A self contained, repeatable non-blocking entity that retrieves its content from a file. This class is mostly used to stream large files of different types, so one needs to supply the content type of the file to make sure the content can be correctly recognized and processed by the recipient.
Field Summary |
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Fields inherited from class org.apache.http.entity.AbstractHttpEntity |
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chunked, contentEncoding, contentType, OUTPUT_BUFFER_SIZE |
Constructor Summary | |
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NFileEntity(File file)
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NFileEntity(File file,
ContentType contentType)
Creates new instance of NFileEntity from the given source File
with the given content type. |
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NFileEntity(File file,
ContentType contentType,
boolean useFileChannels)
Creates new instance of NFileEntity from the given source File
with the given content type. |
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NFileEntity(File file,
String contentType)
Deprecated. (4.2) use NFileEntity(File, ContentType) |
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NFileEntity(File file,
String contentType,
boolean useFileChannels)
Deprecated. (4.2) use NFileEntity(File, ContentType, boolean) |
Method Summary | |
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void |
close()
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void |
finish()
Deprecated. (4.2) use close() |
InputStream |
getContent()
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long |
getContentLength()
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boolean |
isRepeatable()
Determines whether or not this producer is capable of producing its content more than once. |
boolean |
isStreaming()
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void |
produceContent(ContentEncoder encoder,
IOControl ioControl)
Invoked to write out a chunk of content to the ContentEncoder . |
void |
writeTo(OutputStream outStream)
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Methods inherited from class org.apache.http.entity.AbstractHttpEntity |
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consumeContent, getContentEncoding, getContentType, isChunked, setChunked, setContentEncoding, setContentEncoding, setContentType, setContentType, toString |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Methods inherited from interface org.apache.http.HttpEntity |
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consumeContent, getContentEncoding, getContentType, isChunked |
Constructor Detail |
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public NFileEntity(File file, ContentType contentType, boolean useFileChannels)
File
with the given content type. If useFileChannels
is set to
true
, the entity will try to use FileContentEncoder
interface to stream file content directly from the file channel.
file
- the source file.contentType
- the content type of the file.useFileChannels
- flag whether the direct transfer from the file
channel should be attempted.public NFileEntity(File file)
public NFileEntity(File file, ContentType contentType)
File
with the given content type.
file
- the source file.contentType
- the content type of the file.@Deprecated public NFileEntity(File file, String contentType, boolean useFileChannels)
NFileEntity(File, ContentType, boolean)
@Deprecated public NFileEntity(File file, String contentType)
NFileEntity(File, ContentType)
Method Detail |
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public void close() throws IOException
close
in interface Closeable
IOException
@Deprecated public void finish() throws IOException
close()
finish
in interface ProducingNHttpEntity
IOException
public long getContentLength()
getContentLength
in interface HttpEntity
public boolean isRepeatable()
HttpAsyncContentProducer
isRepeatable
in interface HttpEntity
isRepeatable
in interface HttpAsyncContentProducer
public void produceContent(ContentEncoder encoder, IOControl ioControl) throws IOException
HttpAsyncContentProducer
ContentEncoder
.
The IOControl
interface can be used to suspend output event
notifications if the entity is temporarily unable to produce more content.
When all content is finished, the producer MUST call
ContentEncoder.complete()
. Failure to do so may cause the entity
to be incorrectly delimited.
Please note that the ContentEncoder
object is not thread-safe and
should only be used within the context of this method call.
The IOControl
object can be shared and used on other thread
to resume output event notifications when more content is made available.
produceContent
in interface HttpAsyncContentProducer
produceContent
in interface ProducingNHttpEntity
encoder
- content encoder.ioControl
- I/O control of the underlying connection.
IOException
public boolean isStreaming()
isStreaming
in interface HttpEntity
public InputStream getContent() throws IOException
getContent
in interface HttpEntity
IOException
public void writeTo(OutputStream outStream) throws IOException
writeTo
in interface HttpEntity
IOException
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