org.jboss.ws.core.soap.attachment

Class SwapableMemoryDataSource

java.lang.Object

org.jboss.ws.core.soap.attachment.SwapableMemoryDataSource

All Implemented Interfaces:

DataSource

public class SwapableMemoryDataSource
extends Object
implements DataSource

A datasource which offloads large attachments to disk.

Author:

Thomas.Diesler@jboss.org, Jason T. Greene

Constructor Summary

Constructors

Constructor and Description
SwapableMemoryDataSource(InputStream inputStream, String contentType) Constructs a SwapableMemoryDataSource from inputStream, and contentType.
SwapableMemoryDataSource(InputStream inputStream, String contentType, int maxMemorySize) Constructs a SwapableMemoryDataSource from inputStream, and contentType.

Method Summary

Methods

Modifier and Type	Method and Description
void	cleanup()
protected void	finalize()
String	getContentType() Returns the content type of this data source.
InputStream	getInputStream() Returns a new input stream on this data source.
String	getName() This method always returns null.
OutputStream	getOutputStream() This method always returns null.

Methods inherited from class java.lang.Object

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

Constructor Detail

SwapableMemoryDataSource

public SwapableMemoryDataSource(InputStream inputStream,
                        String contentType)
                         throws IOException

Constructs a SwapableMemoryDataSource from inputStream, and contentType. The instance then reads from the input stream, and stores it in memory unless the size of the content is larger that 64KB, at whichpoint the stream is stored in a temporary file on disk.

Parameters:

inputStream - the stream to read from

contentType - the content type of this stream

Throws:

IOException

SwapableMemoryDataSource

public SwapableMemoryDataSource(InputStream inputStream,
                        String contentType,
                        int maxMemorySize)
                         throws IOException

Constructs a SwapableMemoryDataSource from inputStream, and contentType. The instance then reads from the input stream, and stores it in memory unless the size of the content is larger than maxMemorySize, at whichpoint the stream is stored in a temporary file on disk.

Parameters:

inputStream - the stream to read from

contentType - the content type of this stream

maxMemorySize - the maximum size in bytes that this data source is allowed to allocate for stream storage

Throws:

IOException

Method Detail

finalize

protected void finalize()
                 throws Throwable

Overrides:

finalize in class Object

Throws:

Throwable

cleanup

public void cleanup()

getContentType

public String getContentType()

Returns the content type of this data source.

Specified by:

getContentType in interface DataSource

Returns:

the content type

getInputStream

public InputStream getInputStream()
                           throws IOException

Returns a new input stream on this data source. Multiple calls are allowed because the data is stored.

Specified by:

getInputStream in interface DataSource

Returns:

a new input stream at the start of the data

Throws:

IOException

getName

public String getName()

This method always returns null.

Specified by:

getName in interface DataSource

Returns:

null

getOutputStream

public OutputStream getOutputStream()
                             throws IOException

This method always returns null.

Specified by:

getOutputStream in interface DataSource

Returns:

null

Throws:

IOException