Examples of org.apache.cocoon.components.elementprocessor.ElementProcessor

Package org.apache.cocoon.components.elementprocessor

Examples of org.apache.cocoon.components.elementprocessor.ElementProcessor

org.apache.cocoon.components.elementprocessor.ElementProcessor
The ElementProcessor interface defines behavior for classes that can handle a particular XML element's content.
The life cycle of an ElementProcessor instance is:
1. Creation
2. Initialization via a call to initialize
3. Acquisition of element data via calls to acceptCharacters and acceptWhitespaceCharacters
4. Completion of processing via a call to endProcessing
In response to a startElement event, the POIFSSerializer creates an ElementProcessor, delegating the act of creation to an ElementProcessorFactory, and then initializes the ElementProcessor. In response to subsequent characters and ignorableWhitespace events, the POIFSSerializer will pass data to the ElementProcessor via the acceptCharacters or acceptWhitespaceCharacters methods. Finally, in response to an endElement event, the POIFSSerializer calls the ElementProcessor's endProcessing method. @author Marc Johnson (marc_johnson27591@hotmail.com) @version CVS $Id: ElementProcessor.java,v 1.3 2004/03/05 13:02:03 bdelacretaz Exp $

     */


    protected ElementProcessor constructElementProcessor(
            final Constructor progenitor)
            throws CannotCreateElementProcessorException {
        ElementProcessor rval = null;


        try {
            rval = (ElementProcessor) progenitor.newInstance(new Object[0]);
            if (rval instanceof AbstractLogEnabled) {
               ((AbstractLogEnabled)rval).enableLogging(getLogger());

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        if ((localName != null) && (localName.length() != 0)) {
            name = localName;
        } else if ((qName != null) && (qName.length() != 0)) {
            name = qName;
        }
        ElementProcessor processor;


        try {
            processor =
                getElementProcessorFactory().createElementProcessor(name);
        } catch (CannotCreateElementProcessorException e) {
            throw SAXExceptionFactory("could not process startElement event",
                                      e);
        }
        doPreInitialization(processor);
        Attribute[] attributes = (atts == null) ? new Attribute[0]
                                                : new Attribute[atts.getLength()];


        for (int j = 0; j < attributes.length; j++) {
            attributes[j] = new Attribute(atts.getQName(j), atts.getValue(j));
        }
        try {
            processor.initialize(attributes, getCurrentElementProcessor());
        } catch (IOException e) {
            throw SAXExceptionFactory("Exception processing startElement", e);
        }
        _open_elements.push(processor);
    }

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     *
     * @exception SAXException if anything goes wrong in processing
     *            the character data
     */
    public void characters(final char [] ch, final int start, final int length) throws SAXException {
        ElementProcessor currentElementProcessor = getCurrentElementProcessor();
        if (currentElementProcessor != null) {
            currentElementProcessor.acceptCharacters(cleanupArray(ch, start, length));
        }
    }

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     *
     * @exception SAXException if anything goes wrong in processing
     *            the character data
     */
    public void ignorableWhitespace(final char [] ch, final int start, final int length) throws SAXException {
        ElementProcessor currentElementProcessor = getCurrentElementProcessor();
        if (currentElementProcessor != null) {
            currentElementProcessor.acceptWhitespaceCharacters(cleanupArray(ch, start, length));
        }
    }

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        if (localName != null && localName.length() != 0) {
            name = localName;
        } else if (qName != null && qName.length() != 0) {
            name = qName;
        }
        ElementProcessor processor;


        try {
            processor = getElementProcessorFactory().createElementProcessor(name);
        } catch (CannotCreateElementProcessorException e) {
            throw SAXExceptionFactory("could not process startElement event", e);
        }
        doPreInitialization(processor);
        Attribute[] attributes = (atts == null) ? new Attribute[0]
                                                : new Attribute[atts.getLength()];


        for (int j = 0; j < attributes.length; j++) {
            attributes[j] = new Attribute(atts.getQName(j), atts.getValue(j));
        }
        try {
            processor.initialize(attributes, getCurrentElementProcessor());
        } catch (IOException e) {
            throw SAXExceptionFactory("Exception processing startElement", e);
        }
        this.openElements.push(processor);
    }

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                new CannotCreateElementProcessorException(
                    "Cannot find progenitor for that name");
            exception.setElementName(name);
            throw exception;
        }
        ElementProcessor processor = null;


        try {
            processor = doCreateElementProcessor(progenitor);
        } catch (CannotCreateElementProcessorException e) {
            e.setElementName(name);

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     */


    protected ElementProcessor createNewElementProcessorInstance(
            final Class progenitor)
            throws CannotCreateElementProcessorException {
        ElementProcessor rval = null;


        try {
            rval = (ElementProcessor)progenitor.newInstance();
            if (rval instanceof AbstractLogEnabled) {
               ((AbstractLogEnabled)rval).enableLogging(getLogger());

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     */


    protected ElementProcessor constructElementProcessor(
            final Constructor progenitor)
            throws CannotCreateElementProcessorException {
        ElementProcessor rval = null;


        try {
            rval = (ElementProcessor) progenitor.newInstance(new Object[0]);
            if (rval instanceof AbstractLogEnabled) {
               ((AbstractLogEnabled)rval).enableLogging(getLogger());

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        if ((localName != null) && (localName.length() != 0)) {
            name = localName;
        } else if ((qName != null) && (qName.length() != 0)) {
            name = qName;
        }
        ElementProcessor processor;


        try {
            processor =
                getElementProcessorFactory().createElementProcessor(name);
        } catch (CannotCreateElementProcessorException e) {
            throw SAXExceptionFactory("could not process startElement event",
                                      e);
        }
        doPreInitialization(processor);
        Attribute[] attributes = (atts == null) ? new Attribute[0]
                                                : new Attribute[atts.getLength()];


        for (int j = 0; j < attributes.length; j++) {
            attributes[j] = new Attribute(atts.getQName(j), atts.getValue(j));
        }
        try {
            processor.initialize(attributes, getCurrentElementProcessor());
        } catch (IOException e) {
            throw SAXExceptionFactory("Exception processing startElement", e);
        }
        _open_elements.push(processor);
    }

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     * @return an ancestor of the specified class; null if no such
     *         ancestor exists
     */


    protected ElementProcessor getAncestor(final Class theclass) {
      ElementProcessor parent = getParent();
      if (parent == null || parent.getClass().equals(theclass)) {
          return parent;
      } else {
          return ((BaseElementProcessor)parent).getAncestor(theclass);
      }
    }

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Related Classes of org.apache.cocoon.components.elementprocessor.ElementProcessor

org.apache.cocoon.components.elementprocessor.impl.AbstractElementProcessorFactory

org.apache.cocoon.components.elementprocessor.impl.poi.hssf.elements.BaseElementProcessor

org.apache.cocoon.components.elementprocessor.impl.poi.hssf.HSSFElementProcessorFactory

org.apache.cocoon.serialization.ElementProcessorSerializer

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