org.apache.axis.attachments
Class ManagedMemoryDataSource

java.lang.Object
  org.apache.axis.attachments.ManagedMemoryDataSource

All Implemented Interfaces:

javax.activation.DataSource

public class ManagedMemoryDataSource

extends java.lang.Object

implements javax.activation.DataSource

This class allows small attachments to be cached in memory, while large ones are cached out. It implements a Java Activiation Data source interface.

Field Summary

static int	MAX_MEMORY_DISK_CACHED Field MAX_MEMORY_DISK_CACHED
static int	MIN_MEMORY_DISK_CACHED Field MIN_MEMORY_DISK_CACHED
static int	READ_CHUNK_SZ Field READ_CHUNK_SZ

Constructor Summary

ManagedMemoryDataSource(java.io.InputStream ss, int maxCached, java.lang.String contentType)
Create a new boundary stream.

ManagedMemoryDataSource(java.io.InputStream ss, int maxCached, java.lang.String contentType, boolean readall)
Create a new boundary stream.

Method Summary

boolean	delete()
java.lang.String	getContentType() This method returns the MIME type of the data in the form of a string.
java.io.File	getDiskCacheFile() get the filename of the content if it is cached to disk.
java.io.InputStream	getInputStream() This method returns an InputStream representing the the data and throws the appropriate exception if it can not do so.
java.lang.String	getName() This will flush any memory source to disk and provide the name of the file if desired.
java.io.OutputStream	getOutputStream() This method returns an OutputStream where the data can be written and throws the appropriate exception if it can not do so.
static void	main(java.lang.String[] arg) Method main

Methods inherited from class java.lang.Object

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

Field Detail

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

READ_CHUNK_SZ

public static final int READ_CHUNK_SZ

Field READ_CHUNK_SZ

See Also:

Constant Field Values

Constructor Detail

ManagedMemoryDataSource

public ManagedMemoryDataSource(java.io.InputStream ss,
                               int maxCached,
                               java.lang.String contentType)
                        throws java.io.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:

java.io.IOException

ManagedMemoryDataSource

public ManagedMemoryDataSource(java.io.InputStream ss,
                               int maxCached,
                               java.lang.String contentType,
                               boolean readall)
                        throws java.io.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:

java.io.IOException

Method Detail

getContentType

public java.lang.String getContentType()

This method returns the MIME type of the data in the form of a string.

Specified by:

getContentType in interface javax.activation.DataSource

Returns:

The mime type.

getInputStream

public java.io.InputStream getInputStream()
                                   throws java.io.IOException

This method returns an InputStream representing the the data and throws the appropriate exception if it can not do so.

Specified by:

getInputStream in interface javax.activation.DataSource

Returns:

the java.io.InputStream for the data source.

Throws:

java.io.IOException

getName

public java.lang.String getName()

This will flush any memory source to disk and provide the name of the file if desired.

Specified by:

getName in interface javax.activation.DataSource

Returns:

the name of the file of the stream

getOutputStream

public java.io.OutputStream getOutputStream()
                                     throws java.io.IOException

This method returns an OutputStream where the data can be written and throws the appropriate exception if it can not do so. NOT SUPPORTED, not need for axis, data sources are create by constructors.

Specified by:

getOutputStream in interface javax.activation.DataSource

Returns:

always null

Throws:

java.io.IOException

delete

public boolean delete()

main

public static void main(java.lang.String[] arg)

Method main

Parameters:

arg -

getDiskCacheFile

public java.io.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