org.apache.axiom.om.ds

Class InputStreamDataSource

java.lang.Object

org.apache.axiom.om.ds.OMDataSourceExtBase

org.apache.axiom.om.ds.InputStreamDataSource

All Implemented Interfaces:

OMDataSource, OMDataSourceExt

public class InputStreamDataSource
extends OMDataSourceExtBase

InputStream is an example OMDataSourceExt. Use it to insert a (InputStream, encoding) into an OM Tree. This data source is useful for placing an InputStream into an OM tree, instead of having a deeply nested tree.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	InputStreamDataSource.Data Object containing the InputStream/encoding pair

Field Summary

Fields inherited from interface org.apache.axiom.om.OMDataSourceExt

LOSSY_PREFIX

Constructor Summary

Constructors

Constructor and Description
InputStreamDataSource(InputStream is, String encoding) Constructor

Method Summary

Modifier and Type	Method and Description
void	close() Close the DataSource and free its resources.
OMDataSourceExt	copy() Return a InputStreamDataSource backed by a ByteArrayInputStream
Object	getObject() Returns the backing Object.
XMLStreamReader	getReader() Get parser for element data.
byte[]	getXMLBytes(String encoding) Returns a byte[] representing the xml data
InputStream	getXMLInputStream(String encoding) Returns a InputStream representing the xml data
boolean	isDestructiveRead() Returns true if reading the backing object is destructive.
boolean	isDestructiveWrite() Returns true if writing the backing object is destructive.
void	serialize(OutputStream output, OMOutputFormat format) Serializes element data directly to stream.
void	serialize(XMLStreamWriter xmlWriter) Serializes element data directly to StAX writer.

Methods inherited from class org.apache.axiom.om.ds.OMDataSourceExtBase

getProperty, hasProperty, serialize, setProperty

Methods inherited from class java.lang.Object

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

Constructor Detail

InputStreamDataSource

public InputStreamDataSource(InputStream is,
                             String encoding)

Constructor

Parameters:

is -

encoding -

Method Detail

serialize

public void serialize(OutputStream output,
                      OMOutputFormat format)
               throws XMLStreamException

Description copied from interface: OMDataSourceExt

Serializes element data directly to stream. Assumes that the backing object is destroyed during serialization if isDestructiveWrite

Specified by:

serialize in interface OMDataSource

Specified by:

serialize in interface OMDataSourceExt

Overrides:

serialize in class OMDataSourceExtBase

Parameters:

output - destination stream for element XML text

format - Output format information. The implementation must use this information to choose the correct character set encoding when writing to the output stream. This parameter must not be null.

Throws:

XMLStreamException

See Also:

OMDataSourceExt

serialize

public void serialize(XMLStreamWriter xmlWriter)
               throws XMLStreamException

Description copied from interface: OMDataSourceExt

Serializes element data directly to StAX writer. Assumes that the backing object is destroyed during serialization isDestructiveWrite

Specified by:

serialize in interface OMDataSource

Specified by:

serialize in interface OMDataSourceExt

Overrides:

serialize in class OMDataSourceExtBase

Parameters:

xmlWriter - destination writer

Throws:

XMLStreamException

See Also:

OMDataSourceExt

getReader

public XMLStreamReader getReader()
                          throws XMLStreamException

Description copied from interface: OMDataSourceExt

Get parser for element data. In the general case this may require the data source to serialize data as XML text and then parse that text.

Returns:

element parser

Throws:

XMLStreamException

getXMLInputStream

public InputStream getXMLInputStream(String encoding)
                              throws UnsupportedEncodingException

Description copied from interface: OMDataSourceExt

Returns a InputStream representing the xml data

Specified by:

getXMLInputStream in interface OMDataSourceExt

Overrides:

getXMLInputStream in class OMDataSourceExtBase

Parameters:

encoding - String encoding of InputStream

Returns:

InputStream

Throws:

UnsupportedEncodingException

getObject

public Object getObject()

Description copied from interface: OMDataSourceExt

Returns the backing Object.

Returns:

Object

isDestructiveRead

public boolean isDestructiveRead()

Description copied from interface: OMDataSourceExt

Returns true if reading the backing object is destructive. An example of an object with a destructive read is an InputSteam. The owning OMSourcedElement uses this information to detemine if OM tree expansion is needed when reading the OMDataSourceExt.

Returns:

boolean

isDestructiveWrite

public boolean isDestructiveWrite()

Description copied from interface: OMDataSourceExt

Returns true if writing the backing object is destructive. An example of an object with a destructive write is an InputStream. The owning OMSourcedElement uses this information to detemine if OM tree expansion is needed when writing the OMDataSourceExt.

Returns:

boolean

getXMLBytes

public byte[] getXMLBytes(String encoding)
                   throws UnsupportedEncodingException

Description copied from interface: OMDataSourceExt

Returns a byte[] representing the xml data

Parameters:

encoding - String encoding of InputStream

Returns:

byte[]

Throws:

UnsupportedEncodingException

See Also:

OMDataSourceExt.getXMLInputStream(String)

close

public void close()

Description copied from interface: OMDataSourceExt

Close the DataSource and free its resources.

copy

public OMDataSourceExt copy()

Return a InputStreamDataSource backed by a ByteArrayInputStream

Returns:

OMDataSourceExt