org.apache.axiom.attachments

Class PartContentOnMemory

java.lang.Object

org.apache.axiom.attachments.PartContent

org.apache.axiom.attachments.PartContentOnMemory

class PartContentOnMemory
extends PartContent

Stores the content of a MIME part in memory (in non-contiguous byte arrays). This implementation is used for smaller attachments to enhance performance.

See Also:

PartContentFactory

Field Summary

Fields

Modifier and Type	Field and Description
private java.util.ArrayList	data
private int	length

Constructor Summary

Constructors

Constructor and Description
PartContentOnMemory(java.util.ArrayList data, int length) Constructor.

Method Summary

Modifier and Type	Method and Description
(package private) void	destroy() Release all resources used to store the content of the MIME part.
(package private) javax.activation.DataSource	getDataSource(java.lang.String contentType) Get a DataSource implementation specific for this buffering strategy, if supported.
(package private) java.io.InputStream	getInputStream() Get an InputStream representing the buffered MIME part content.
(package private) long	getSize() Get the size of the MIME part, more precisely the number of bytes in the decoded content of the MIME part.
(package private) void	writeTo(java.io.OutputStream os) Write the buffered MIME part content to the given output stream.

Methods inherited from class java.lang.Object

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

Field Detail

data

private final java.util.ArrayList data

length

private final int length

Constructor Detail

PartContentOnMemory

PartContentOnMemory(java.util.ArrayList data,
                    int length)

Constructor.

Parameters:

data - a list of 4K byte arrays

length - the total length of the data in bytes

Method Detail

getInputStream

java.io.InputStream getInputStream()

Description copied from class: PartContent

Get an InputStream representing the buffered MIME part content. Note that a new InputStream object must be returned each time this method is called, and the stream must be positioned at the beginning of the data.

Specified by:

getInputStream in class PartContent

Returns:

the stream representing the content of this MIME part

getDataSource

javax.activation.DataSource getDataSource(java.lang.String contentType)

Description copied from class: PartContent

Get a DataSource implementation specific for this buffering strategy, if supported. If no DataSource is returned, then a default implementation will be used. If a DataSource is returned, it should implement SizeAwareDataSource.

Specified by:

getDataSource in class PartContent

Parameters:

contentType - the content type for the DataSource, which must be returned by DataSource.getContentType()

Returns:

the DataSource implementation or null if a default DataSource implementation should be used

writeTo

void writeTo(java.io.OutputStream os)
      throws java.io.IOException

Description copied from class: PartContent

Write the buffered MIME part content to the given output stream. Note that the implementation must not consume the content, i.e. the content must still be available after this method completes.

Specified by:

writeTo in class PartContent

Parameters:

os - the output stream to write the content to

Throws:

java.io.IOException - if an I/O error occurs (either while reading the buffered content or while writing to the output stream)

getSize

long getSize()

Description copied from class: PartContent

Get the size of the MIME part, more precisely the number of bytes in the decoded content of the MIME part.

Specified by:

getSize in class PartContent

Returns:

the size of the MIME part

destroy

void destroy()
      throws java.io.IOException

Description copied from class: PartContent

Release all resources used to store the content of the MIME part. The content will no longer be accessible after this method is called.

Specified by:

destroy in class PartContent

Throws:

java.io.IOException - if an I/O error occurs