org.apache.cocoon.components.source.impl
Class AvalonToCocoonSourceInvocationHandler

java.lang.Object
  org.apache.cocoon.components.source.impl.AvalonToCocoonSourceInvocationHandler

All Implemented Interfaces:

InvocationHandler

public class AvalonToCocoonSourceInvocationHandler
extends Object
implements InvocationHandler

An InvocationHandler which acts as a proxy for excalibur Source objects to make them compatible with the cocoon Source interface. Much of the code was taken from AvalonToCocoonSource.

Version:

CVS $Id: AvalonToCocoonSourceInvocationHandler.html 1304258 2012-03-23 10:09:27Z ilgrosso $

Author:

Stefan Köhler, Carsten Ziegeler

Field Summary

protected Environment	environment The environment
protected ComponentManager	manager The manager
protected SourceResolver	resolver The source resolver
protected Source	source The real source

Constructor Summary

AvalonToCocoonSourceInvocationHandler(Source source, SourceResolver resolver, Environment environment, ComponentManager manager)
Constructor

Method Summary

static Source	createProxy(Source source, SourceResolver resolver, Environment environment, ComponentManager manager) Creates a dynamic proxy for an excalibur Source object to make it behave like a cocoon Source.
InputSource	getInputSource() Return an InputSource object to read the XML content.
InputStream	getInputStream() Return an InputStream object to read from the source.
String	getSystemId() Return the unique identifer for this source
Object	invoke(Object proxy, Method method, Object[] args) Processes a method invocation on a proxy instance and returns the result.
void	recycle()
void	refresh()
void	toSAX(ContentHandler handler) Stream content to a content handler or to an XMLConsumer.

Methods inherited from class java.lang.Object

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

Field Detail

source

protected Source source

The real source

resolver

protected SourceResolver resolver

The source resolver

environment

protected Environment environment

The environment

manager

protected ComponentManager manager

The manager

Constructor Detail

AvalonToCocoonSourceInvocationHandler

public AvalonToCocoonSourceInvocationHandler(Source source,
                                             SourceResolver resolver,
                                             Environment environment,
                                             ComponentManager manager)

Constructor

Method Detail

invoke

public Object invoke(Object proxy,
                     Method method,
                     Object[] args)
              throws Throwable

Processes a method invocation on a proxy instance and returns the result. It invokes the corresponding method of the wrapped excalibur source.

Specified by:

invoke in interface InvocationHandler

Parameters:

proxy - the Cocoon source proxy instance that the method was invoked on

method - the Method instance corresponding to the interface method invoked on the proxy instance.

args - the arguments for the interface method

Returns:

the result of the proxy method

Throws:

Throwable

getInputStream

public InputStream getInputStream()
                           throws ProcessingException,
                                  IOException

Return an InputStream object to read from the source.

Throws:

ProcessingException

IOException

getInputSource

public InputSource getInputSource()
                           throws ProcessingException,
                                  IOException

Return an InputSource object to read the XML content.

Returns:

an InputSource value

Throws:

ProcessingException - if an error occurs

IOException - if an error occurs

getSystemId

public String getSystemId()

Return the unique identifer for this source

recycle

public void recycle()

refresh

public void refresh()

toSAX

public void toSAX(ContentHandler handler)
           throws SAXException

Stream content to a content handler or to an XMLConsumer.

Throws:

SAXException - if failed to parse source document.

createProxy

public static Source createProxy(Source source,
                                 SourceResolver resolver,
                                 Environment environment,
                                 ComponentManager manager)
                          throws SourceException

Creates a dynamic proxy for an excalibur Source object to make it behave like a cocoon Source.

Parameters:

source - the source object to be wrapped

Returns:

a proxy object which implements the cocoon Source interface and all of the interfaces that the wrapped object implements

Throws:

SourceException - in case of an error