org.bibop.xml.xforge
Class ProcessElement

java.lang.Object
  |
  +--org.bibop.xml.xforge.AbstractElement
        |
        +--org.bibop.xml.xforge.ProcessElement

All Implemented Interfaces:

org.apache.avalon.framework.component.Composable, org.xml.sax.ContentHandler, Element, org.xml.sax.ext.LexicalHandler, org.apache.avalon.framework.logger.LogEnabled, ParametersListener, PrefixesMonitor, XMLConsumer, XMLProducer

public class ProcessElement

extends AbstractElement

implements ParametersListener, org.apache.avalon.framework.component.Composable, org.apache.avalon.framework.logger.LogEnabled

The real thing. given the "using" attribute in the x:forge "process" element looks for the specified component, loads it, handles parameter passing and runs the component.

Version:

1.0

Author:

Alberto Garoffolo

Field Summary

protected XForgeComponent	component
protected org.apache.avalon.framework.component.ComponentManager	componentManager
protected java.lang.String	componentName
protected org.apache.avalon.framework.component.ComponentSelector	cs
protected org.apache.avalon.framework.component.ComponentException	lastexception
protected org.apache.avalon.framework.logger.Logger	log
protected java.util.Map	parameters
static java.lang.String	XFORGE_ATTR_PROCESSTYPE

Fields inherited from class org.bibop.xml.xforge.AbstractElement

contentHandler, lexicalHandler, parentPrefixesMonitor, po, saxEvents, xmlCompiler

Constructor Summary

ProcessElement(org.xml.sax.Attributes attrs, ProcessingOptions aPO)
Look for the "using" attribute and queries the component manager for it.

Method Summary

void	addParameter(java.lang.String name, ParameterValue value) Adds an attribute to the element to be built.
void	compose(org.apache.avalon.framework.component.ComponentManager cm) Sets the Component Manager.
void	enableLogging(org.apache.avalon.framework.logger.Logger log) Enable logging.
protected void	loadComponent() Load the component.
protected void	releaseComponent() Explicit component release to the Component Pool
void	toSax() Do everything.

Methods inherited from class org.bibop.xml.xforge.AbstractElement

characters, comment, end, endCDATA, endDocument, endDTD, endElement, endEntity, endPrefixMapping, flushSAXCache, getActivePrefixes, ignorableWhitespace, output, output, processingInstruction, setConsumer, setContentHandler, setDocumentLocator, setLexicalHandler, setParent, setParentPrefixesMonitor, skippedEntity, start, startCDATA, startDocument, startDTD, startElement, startEntity, startPrefixMapping

Methods inherited from class java.lang.Object

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

Field Detail

XFORGE_ATTR_PROCESSTYPE

public static final java.lang.String XFORGE_ATTR_PROCESSTYPE

See Also:

Constant Field Values

componentManager

protected org.apache.avalon.framework.component.ComponentManager componentManager

component

protected XForgeComponent component

componentName

protected java.lang.String componentName

parameters

protected java.util.Map parameters

log

protected org.apache.avalon.framework.logger.Logger log

cs

protected org.apache.avalon.framework.component.ComponentSelector cs

lastexception

protected org.apache.avalon.framework.component.ComponentException lastexception

Constructor Detail

ProcessElement

public ProcessElement(org.xml.sax.Attributes attrs,
                      ProcessingOptions aPO)
               throws IllegalElementException

Look for the "using" attribute and queries the component manager for it.

Parameters:

attrs - the Attributes object

Throws:

IllegalElementException - Attribute "using" empty or null

Method Detail

enableLogging

public void enableLogging(org.apache.avalon.framework.logger.Logger log)

Enable logging.

Specified by:

enableLogging in interface org.apache.avalon.framework.logger.LogEnabled

compose

public void compose(org.apache.avalon.framework.component.ComponentManager cm)

Sets the Component Manager.

Specified by:

compose in interface org.apache.avalon.framework.component.Composable

Parameters:

cm - the Avalon Component Manager

releaseComponent

protected void releaseComponent()
                         throws XForgeException

Explicit component release to the Component Pool

XForgeException

loadComponent

protected void loadComponent()
                      throws XForgeException

Load the component.

Throws:

XForgeException - Something wrong in Component loading

toSax

public void toSax()
           throws org.xml.sax.SAXException

Do everything.

Specified by:

toSax in interface XMLProducer

Specified by:

toSax in class AbstractElement

Throws:

org.xml.sax.SAXException - Generic Exception handling

addParameter

public void addParameter(java.lang.String name,
                         ParameterValue value)
                  throws XForgeException

Adds an attribute to the element to be built. This method is typically called by an ParameterElement object which is responsible for the parameter evaluation

Specified by:

addParameter in interface ParametersListener

Parameters:

name - The name of the parameter

value - The value of the parameter

Throws:

XForgeException - Bad or redeclared name/value