Examples of org.apache.cocoon.components.sax.XMLDeserializer

Package org.apache.cocoon.components.sax

Examples of org.apache.cocoon.components.sax.XMLDeserializer

org.apache.cocoon.components.sax.XMLDeserializer
This interfaces identifies classes that deserialize XML data, sending SAX events to the configured XMLConsumer (or SAX ContentHandler and LexicalHandler).
The production of the xml data is started by passing an the xml information to the deserialize method. It is beyond the scope of this interface to specify the format of the serialized data. @author Carsten Ziegeler @version CVS $Id: XMLDeserializer.java,v 1.1 2003/03/09 00:09:11 pier Exp $

    }


    public void generateSAXFragment(Object fragment, boolean embed) throws SAXException {


        if (fragment!=null) {
            XMLDeserializer deserializer = null;


            try {
                deserializer = (XMLDeserializer) this.manager.lookup(XMLDeserializer.ROLE);
                if (embed)
                    deserializer.setConsumer(new IncludeXMLConsumer(this.xmlConsumer));
                else
                    deserializer.setConsumer(this.xmlConsumer);
                deserializer.deserialize(fragment);
            } catch (ServiceException ce) {
                getLogger().debug("Could not retrieve XMLDeserializer component",
                                  ce);
                throw new SAXException("Could not retrieve XMLDeserializer component",
                                       ce);

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            } finally {
                this.manager.release( serializer );
            }
            
            if ( read ) {
                XMLDeserializer deserializer = null;
                try {
                    deserializer = (XMLDeserializer)this.manager.lookup(XMLDeserializer.ROLE);
                    if ( contentHandler instanceof XMLConsumer ) {
                        deserializer.setConsumer( (XMLConsumer)contentHandler );
                    } else {
                        LexicalHandler lh = (contentHandler instanceof LexicalHandler ? (LexicalHandler)contentHandler : null);
                        deserializer.setConsumer(  new ContentHandlerWrapper(contentHandler, lh));
                    }
                    deserializer.deserialize( data );
                } catch (ComponentException ce) {
                    throw new SAXException("Unable to lookup xml deserializer.", ce);
                } finally {
                    this.manager.release( deserializer );
                }

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            ComponentSelector tagSelector = (ComponentSelector) tagSelectorStack.pop();
            try {
                if (saxFragment != null) {
                    //start Iteration
                    IterationTag iterTag = (IterationTag) tag;
                    XMLDeserializer xmlDeserializer = null;
                    try {
                        xmlDeserializer = (XMLDeserializer) manager.lookup(XMLDeserializer.ROLE);
                        xmlDeserializer.setConsumer(this);
                        do {
                            xmlDeserializer.deserialize(saxFragment);
                        } while (iterTag.doAfterBody() != Tag.SKIP_BODY);


                    } catch (ComponentException e) {
                        throw new SAXException("lookup XMLDeserializer failed", e);
                    }

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    /* (non-Javadoc)
     * @see org.apache.excalibur.xml.sax.XMLizable#toSAX(org.xml.sax.ContentHandler)
     */
    public void toSAX(ContentHandler contentHandler) throws SAXException {
       XMLDeserializer deserializer = null;
       try {
           deserializer = (XMLDeserializer) this.manager.lookup(XMLDeserializer.ROLE);
           if ( contentHandler instanceof XMLConsumer) {
               deserializer.setConsumer((XMLConsumer)contentHandler);
           } else {
               deserializer.setConsumer(new ContentHandlerWrapper(contentHandler));
           }
           deserializer.deserialize( this.cachedResponse.getAlternativeResponse() );
       } catch (ComponentException ce ) {
           throw new SAXException("Unable to lookup xml deserializer.", ce);
       } finally {
           this.manager.release(deserializer);
       }

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    public void generate() throws SAXException {
        // Obtain the fragmentID  (which is simply the filename portion of the source)
        getLogger().debug("FragmentExtractorGenerator retrieving document " + source + ".");


        Store store = null;
        XMLDeserializer deserializer = null;
        Object fragment = null;
        try {
            store = (Store) this.manager.lookup(Store.TRANSIENT_STORE);
            fragment = store.get(source);


            if (fragment==null)
              throw new SAXException("Could not find frament with id " + source + " in store");


            deserializer = (XMLDeserializer) this.manager.lookup(XMLDeserializer.ROLE);
            deserializer.setConsumer(this.xmlConsumer);
            deserializer.deserialize(fragment);


        } catch (ServiceException ce) {
            getLogger().error("Could not lookup for component.", ce);
            throw new SAXException("Could not lookup for component.", ce);
        } finally

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                                              this.configurationParameters, 
                                              this.resourceParameters,
                                              this.resolver);
                                              
                XMLSerializer serializer = null;
                XMLDeserializer deserializer = null;
                try {
                    if ( ignoreErrors ) {
                        serializer = (XMLSerializer) this.manager.lookup(XMLSerializer.ROLE);
                        deserializer = (XMLDeserializer)this.manager.lookup(XMLDeserializer.ROLE);
                        SourceUtil.toSAX(source, serializer, this.configurationParameters, true);
                        deserializer.setConsumer( this.xmlConsumer );
                        deserializer.deserialize( serializer.getSAXFragment() );
                    } else {
                        SourceUtil.toSAX(source, this.xmlConsumer, this.configurationParameters, true);
                    }
                } catch (ProcessingException pe) {
                    if (!ignoreErrors) throw pe;

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     * @see org.xml.sax.ContentHandler#endDocument()
     */
    public void endDocument() throws SAXException {
        if ( this.compiling ) {
            Object compiledXML = this.endCompiledXMLRecording();
            XMLDeserializer deserializer = null;
            try {
                deserializer = (XMLDeserializer)this.manager.lookup(XMLDeserializer.ROLE);
                deserializer.setConsumer(this.filter);
                deserializer.deserialize(compiledXML);
            } catch (ComponentException ce) {
                throw new SAXException("Unable to lookup xml deserializer.", ce);
            } finally {
                this.manager.release( deserializer );
            }

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                    fragment = xmls.getSAXFragment();
                } finally {
                    this.manager.release(xmls);
                    CocoonComponentManager.leaveEnvironment();
                }
                XMLDeserializer xmld = (XMLDeserializer) this.manager.lookup(XMLDeserializer.ROLE);
                try {
                    xmld.setConsumer(consumer);
                    xmld.deserialize(fragment);
                } finally {
                    this.manager.release(xmld);
                }
            }
        } catch (SAXException e) {

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