Class ByteArrayEntity

java.lang.Object

org.apache.hc.core5.http.io.entity.AbstractHttpEntity

org.apache.hc.core5.http.io.entity.ByteArrayEntity

All Implemented Interfaces:

Closeable, AutoCloseable, EntityDetails, HttpEntity

@Contract(threading=IMMUTABLE_CONDITIONAL)
public class ByteArrayEntity
extends AbstractHttpEntity

A self contained, repeatable entity that obtains its content from a byte array.

This class contains immutable attributes but subclasses may contain additional immutable or mutable attributes.

Since:

4.0

Field Summary

Fields

Modifier and Type	Field	Description
private final byte[]	buf
private final int	len
private final int	off

Fields inherited from class AbstractHttpEntity

OUTPUT_BUFFER_SIZE

Constructor Summary

Constructors

Constructor	Description
ByteArrayEntity(byte[] buf, int off, int len, ContentType contentType)	Constructs a new instance with the given attributes kept as immutable.
ByteArrayEntity(byte[] buf, int off, int len, ContentType contentType, boolean chunked)	Constructs a new instance with the given attributes kept as immutable.
ByteArrayEntity(byte[] buf, int off, int len, ContentType contentType, String contentEncoding)	Constructs a new instance with the given attributes kept as immutable.
ByteArrayEntity(byte[] buf, int off, int len, ContentType contentType, String contentEncoding, boolean chunked)	Constructs a new instance with the given attributes kept as immutable.
ByteArrayEntity(byte[] buf, ContentType contentType)	Constructs a new instance with the given attributes kept as immutable.
ByteArrayEntity(byte[] buf, ContentType contentType, boolean chunked)	Constructs a new instance with the given attributes kept as immutable.
ByteArrayEntity(byte[] buf, ContentType contentType, String contentEncoding)	Constructs a new instance with the given attributes kept as immutable.
ByteArrayEntity(byte[] buf, ContentType contentType, String contentEncoding, boolean chunked)	Constructs a new instance with the given attributes kept as immutable.

Method Summary

Modifier and Type	Method	Description
final void	close()
final InputStream	getContent()	Gets a content stream of the entity.
final long	getContentLength()	Gets length of this entity, if known.
final boolean	isRepeatable()	Tests if the entity is capable of producing its data more than once.
final boolean	isStreaming()	Tests whether this entity depends on an underlying stream.
final void	writeTo(OutputStream outStream)	Writes this entity to an OutputStream.

Methods inherited from class AbstractHttpEntity

getContentEncoding, getContentType, getTrailerNames, getTrailers, isChunked, toString, writeTo

Methods inherited from class Object

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

Field Details

buf

private final byte[] buf

off

private final int off

len

private final int len

Constructor Details

ByteArrayEntity

public ByteArrayEntity(byte[] buf,
 int off,
 int len,
 ContentType contentType,
 String contentEncoding,
 boolean chunked)

Constructs a new instance with the given attributes kept as immutable.

Parameters:

buf - The message body contents as a byte array buffer.

off - The offset in the buffer of the first byte to read.

len - The maximum number of bytes to read from the buffer.

contentType - The content-type, may be null.

contentEncoding - The content encoding string, may be null.

chunked - Whether this entity should be chunked.

Since:

5.0

ByteArrayEntity

public ByteArrayEntity(byte[] buf,
 int off,
 int len,
 ContentType contentType,
 String contentEncoding)

Constructs a new instance with the given attributes kept as immutable.

The new instance:

• is not chunked.

Parameters:

buf - The message body contents as a byte array buffer.

off - The offset in the buffer of the first byte to read.

len - The maximum number of bytes to read from the buffer.

contentType - The content-type, may be null.

contentEncoding - The content encoding string, may be null.

Since:

5.0

ByteArrayEntity

public ByteArrayEntity(byte[] buf,
 ContentType contentType,
 String contentEncoding,
 boolean chunked)

Constructs a new instance with the given attributes kept as immutable.

The new instance:

• starts reading it's contents at index 0 in the buffer.
• has the content length of the given buffer.

Parameters:

buf - The message body contents as a byte array buffer.

contentType - The content-type, may be null.

contentEncoding - The content encoding string, may be null.

chunked - Whether this entity should be chunked.

Since:

5.0

ByteArrayEntity

public ByteArrayEntity(byte[] buf,
 ContentType contentType,
 String contentEncoding)

Constructs a new instance with the given attributes kept as immutable.

The new instance:

• is not chunked.
• starts reading it's contents at index 0 in the buffer.
• has the content length of the given buffer.

Parameters:

buf - The message body contents as a byte array buffer.

contentType - The content-type, may be null.

contentEncoding - The content encoding string, may be null.

Since:

5.0

ByteArrayEntity

public ByteArrayEntity(byte[] buf,
 ContentType contentType,
 boolean chunked)

Constructs a new instance with the given attributes kept as immutable.

The new instance:

• starts reading it's contents at index 0 in the buffer.
• has the content length of the given buffer.
• does not define a content encoding.

Parameters:

buf - The message body contents as a byte array buffer.

contentType - The content-type, may be null.

chunked - Whether this entity should be chunked.

ByteArrayEntity

public ByteArrayEntity(byte[] buf,
 ContentType contentType)

Constructs a new instance with the given attributes kept as immutable.

The new instance:

• is not chunked.
• starts reading it's contents at index 0 in the buffer.
• has the content length of the given buffer.
• does not define a content encoding.

Parameters:

buf - The message body contents as a byte array buffer.

contentType - The content-type, may be null.

ByteArrayEntity

public ByteArrayEntity(byte[] buf,
 int off,
 int len,
 ContentType contentType,
 boolean chunked)

Constructs a new instance with the given attributes kept as immutable.

The new instance:

• does not define a content encoding.

Parameters:

buf - The message body contents as a byte array buffer.

off - The offset in the buffer of the first byte to read.

len - The maximum number of bytes to read from the buffer.

contentType - The content-type, may be null.

chunked - Whether this entity should be chunked.

ByteArrayEntity

public ByteArrayEntity(byte[] buf,
 int off,
 int len,
 ContentType contentType)

Constructs a new instance with the given attributes kept as immutable.

The new instance:

• is not chunked.
• does not define a content encoding.

Parameters:

buf - The message body contents as a byte array buffer.

off - The offset in the buffer of the first byte to read.

len - The maximum number of bytes to read from the buffer.

contentType - The content-type, may be null.

Since:

5.0

Method Details

isRepeatable

public final boolean isRepeatable()

Tests 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.

This implementation always returns false.

This implementation always returns true.

Specified by:

isRepeatable in interface HttpEntity

Overrides:

isRepeatable in class AbstractHttpEntity

Returns:

true if the entity is repeatable, false otherwise.

getContentLength

public final long getContentLength()

Description copied from interface: EntityDetails

Gets length of this entity, if known.

Returns:

the length of this entity, may be 0.

getContent

public final InputStream getContent()

Description copied from interface: HttpEntity

Gets 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.

If this entity belongs to an incoming HTTP message, calling InputStream.close() on the returned InputStream will try to consume the complete entity content to keep the connection alive. In cases where this is undesired, e.g. when only a small part of the content is relevant and consuming the complete entity content would be too inefficient, only the HTTP message from which this entity was obtained should be closed (if supported).

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.

See Also:

• HttpEntity.isRepeatable()

writeTo

public final void writeTo(OutputStream outStream)
                   throws IOException

Description copied from class: AbstractHttpEntity

Writes this entity to an OutputStream.

Specified by:

writeTo in interface HttpEntity

Overrides:

writeTo in class AbstractHttpEntity

Parameters:

outStream - Where to write the entity, never null.

Throws:

IOException - if the entity cannot generate its content stream; also thrown if the output stream is closed.

isStreaming

public final boolean isStreaming()

Tests 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.

This implementation always returns false.

Returns:

true if the entity content is streamed, false otherwise

close

public final void close()
                 throws IOException

This implementation is a no-op.

Throws:

IOException