Package org.apache.axis2.saaj.util

Class SAAJDataSource

java.lang.Object

org.apache.axis2.saaj.util.SAAJDataSource

All Implemented Interfaces:

DataSource

public class SAAJDataSource
extends Object
implements DataSource

Field Summary

Fields

Modifier and Type	Field	Description
protected BufferedOutputStream	cachediskstream	This is the cached disk stream.
protected boolean	closed	If true the source input stream is now closed.
protected String	contentType	The content type.
protected byte[]	currentMemoryBuf	Hold the last memory buffer.
protected int	currentMemoryBufSz	The number of bytes written to the above buffer.
protected boolean	deleted	Flag to show if the resources behind this have been deleted.
protected File	diskCacheFile	Field diskCacheFile
static int	MAX_MEMORY_DISK_CACHED	Field MAX_MEMORY_DISK_CACHED
protected int	maxCached	Field maxCached
protected LinkedList	memorybuflist	The linked list to hold the in memory buffers.
static int	MIN_MEMORY_DISK_CACHED	Field MIN_MEMORY_DISK_CACHED
static int	READ_CHUNK_SZ	Field READ_CHUNK_SZ
protected WeakHashMap	readers	Field readers
protected long	totalsz	The total size in bytes in this data source.

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	SAAJDataSource()	Constructor SAAJDataSource.
	SAAJDataSource(InputStream ss, int maxCached, String contentType)	Create a new boundary stream.
	SAAJDataSource(InputStream ss, int maxCached, String contentType, boolean readall)	Create a new boundary stream.

Method Summary

Modifier and Type	Method	Description
protected void	close()	This method is a low level write.
protected void	flushToDisk()	Routine to flush data to disk if is in memory.
String	getContentType()
File	getDiskCacheFile()	get the filename of the content if it is cached to disk.
InputStream	getInputStream()
String	getName()
OutputStream	getOutputStream()
protected void	write(byte[] data)	Write bytes to the stream.
protected void	write(byte[] data, int length)	This method is a low level write.
protected void	writeToMemory(byte[] data, int length)	This method is a low level write.

Methods inherited from class java.lang.Object

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

Field Detail

contentType

protected String contentType

The content type. This defaults to application/octet-stream.

MIN_MEMORY_DISK_CACHED

public static final int MIN_MEMORY_DISK_CACHED

Field MIN_MEMORY_DISK_CACHED

See Also:

Constant Field Values

MAX_MEMORY_DISK_CACHED

public static final int MAX_MEMORY_DISK_CACHED

Field MAX_MEMORY_DISK_CACHED

See Also:

Constant Field Values

maxCached

protected int maxCached

Field maxCached

diskCacheFile

protected File diskCacheFile

Field diskCacheFile

readers

protected WeakHashMap readers

Field readers

deleted

protected boolean deleted

Flag to show if the resources behind this have been deleted.

READ_CHUNK_SZ

public static final int READ_CHUNK_SZ

Field READ_CHUNK_SZ

See Also:

Constant Field Values

memorybuflist

protected LinkedList memorybuflist

The linked list to hold the in memory buffers.

currentMemoryBuf

protected byte[] currentMemoryBuf

Hold the last memory buffer.

currentMemoryBufSz

protected int currentMemoryBufSz

The number of bytes written to the above buffer.

totalsz

protected long totalsz

The total size in bytes in this data source.

cachediskstream

protected BufferedOutputStream cachediskstream

This is the cached disk stream.

closed

protected boolean closed

If true the source input stream is now closed.

Constructor Detail

SAAJDataSource

protected SAAJDataSource()

Constructor SAAJDataSource.

SAAJDataSource

public SAAJDataSource(InputStream ss,
                      int maxCached,
                      String contentType)
               throws IOException

Create a new boundary stream.

Parameters:

ss - is the source input stream that is used to create this data source.

maxCached - This is the max memory that is to be used to cache the data.

contentType - the mime type for this data stream. by buffering you can some effiency in searching.

Throws:

IOException

SAAJDataSource

public SAAJDataSource(InputStream ss,
                      int maxCached,
                      String contentType,
                      boolean readall)
               throws IOException

Create a new boundary stream.

Parameters:

ss - is the source input stream that is used to create this data source.

maxCached - This is the max memory that is to be used to cache the data.

contentType - the mime type for this data stream. by buffering you can some effiency in searching.

readall - if true will read in the whole source.

Throws:

IOException

Method Detail

close

protected void close()
              throws IOException

This method is a low level write. Close the stream.

Throws:

IOException

flushToDisk

protected void flushToDisk()
                    throws IOException,
                           FileNotFoundException

Routine to flush data to disk if is in memory.

Throws:

IOException

FileNotFoundException

write

protected void write(byte[] data)
              throws IOException

Write bytes to the stream.

Parameters:

data - all bytes of this array are written to the stream

Throws:

IOException - if there was a problem writing the data

write

protected void write(byte[] data,
                     int length)
              throws IOException

This method is a low level write. Note it is designed to in the future to allow streaming to both memory AND to disk simultaneously.

Parameters:

data -

length -

Throws:

IOException

writeToMemory

protected void writeToMemory(byte[] data,
                             int length)
                      throws IOException

This method is a low level write. Writes only to memory

Parameters:

data -

length -

Throws:

IOException

getDiskCacheFile

public File getDiskCacheFile()

get the filename of the content if it is cached to disk.

Returns:

file object pointing to file, or null for memory-stored content

getInputStream

public InputStream getInputStream()
                           throws IOException

Specified by:

getInputStream in interface DataSource

Throws:

IOException

getOutputStream

public OutputStream getOutputStream()
                             throws IOException

Specified by:

getOutputStream in interface DataSource

Throws:

IOException

getContentType

public String getContentType()

Specified by:

getContentType in interface DataSource

getName

public String getName()

Specified by:

getName in interface DataSource