org.betaconceptframework.astroboa.engine.definition.xsom.CmsAnnotationHandler.java Source code

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Here is the source code for org.betaconceptframework.astroboa.engine.definition.xsom.CmsAnnotationHandler.java

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/*
 * Copyright (C) 2005-2012 BetaCONCEPT Limited
 *
 * This file is part of Astroboa.
 *
 * Astroboa is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Astroboa is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with Astroboa.  If not, see <http://www.gnu.org/licenses/>.
 */

package org.betaconceptframework.astroboa.engine.definition.xsom;

import java.util.Locale;

import org.apache.commons.lang.StringUtils;
import org.betaconceptframework.astroboa.engine.definition.XSSchemaItem;
import org.betaconceptframework.astroboa.model.impl.ItemQName;
import org.betaconceptframework.astroboa.model.impl.item.CmsDefinitionItem;
import org.betaconceptframework.astroboa.model.impl.item.ItemUtils;
import org.xml.sax.Attributes;
import org.xml.sax.ContentHandler;
import org.xml.sax.Locator;
import org.xml.sax.SAXException;

/**
 * @author Gregory Chomatas (gchomatas@betaconcept.com)
 * @author Savvas Triantafyllou (striantafyllou@betaconcept.com)
 * 
 */
public class CmsAnnotationHandler implements ContentHandler {

    private CmsAnnotation cmsAnnotation;

    private String currentLocale = null;
    private StringBuilder currentValueForLocale;

    public CmsAnnotationHandler() {
        cmsAnnotation = new CmsAnnotation();
        currentValueForLocale = new StringBuilder();
    }

    public CmsAnnotation getCmsAnnotation() {
        return cmsAnnotation;
    }

    public void characters(char[] ch, int start, int length) throws SAXException {
        String data = new String(ch, start, length);

        addData(data);

    }

    private void addData(String data) {
        data = StringUtils.trimToNull(data);

        if (data != null && currentLocale != null) {
            if (currentValueForLocale == null) {
                currentValueForLocale = new StringBuilder();
            }

            if (currentValueForLocale.length() > 0) {
                currentValueForLocale.append(" ");
            }

            currentValueForLocale.append(data);
        }
    }

    public void endDocument() throws SAXException {

    }

    public void endElement(String uri, String localName, String qName) throws SAXException {

        ItemQName element = ItemUtils.createNewItem(null, uri, localName);

        if (CmsDefinitionItem.displayName.equals(element)) {
            if (currentLocale != null) {
                cmsAnnotation.addDisplayNameForLocale(currentLocale, currentValueForLocale.toString());
            }

            currentValueForLocale = null;
        } else if (CmsDefinitionItem.description.equals(element)) {
            if (currentLocale != null) {
                cmsAnnotation.addDescriptionForLocale(currentLocale, currentValueForLocale.toString());
            }

            currentValueForLocale = null;
        } else if (XSSchemaItem.Documentation.equals(element)) {
            if (currentLocale != null && currentValueForLocale != null) {

                if (cmsAnnotation.getDisplayName().getLocalizedLabelForLocale(currentLocale) == null) {
                    cmsAnnotation.addDisplayNameForLocale(currentLocale, currentValueForLocale.toString());
                }

                if (cmsAnnotation.getDescription().getLocalizedLabelForLocale(currentLocale) == null) {
                    cmsAnnotation.addDescriptionForLocale(currentLocale, currentValueForLocale.toString());
                }
            }

            currentLocale = null;
            currentValueForLocale = null;
        } else {
            //It's probably an xml element inside documentation
            //Load it as is, but we have to prefixed and suffixed it with < and >
            //Use qname in case element is prefixed
            addData("</" + qName + ">");
        }

    }

    public void endPrefixMapping(String prefix) throws SAXException {

    }

    public void ignorableWhitespace(char[] ch, int start, int length) throws SAXException {

    }

    public void processingInstruction(String target, String data) throws SAXException {

    }

    public void setDocumentLocator(Locator locator) {

    }

    public void skippedEntity(String name) throws SAXException {

    }

    public void startDocument() throws SAXException {

    }

    public void startElement(String uri, String localName, String qName, Attributes atts) throws SAXException {

        ItemQName element = ItemUtils.createNewItem(null, uri, localName);

        if (XSSchemaItem.Annotation.equals(element)) {
            cmsAnnotation.getDisplayName().clearLocalizedLabels();
            cmsAnnotation.getDescription().clearLocalizedLabels();
            currentLocale = null;
            currentValueForLocale = null;
        } else if (CmsDefinitionItem.displayName.equals(element) || CmsDefinitionItem.description.equals(element)) {
            currentValueForLocale = new StringBuilder();
        } else if (XSSchemaItem.Documentation.equals(element)) {
            //Here only attribute about language can be found
            if (atts != null) {
                String language = atts.getValue(XSSchemaItem.Lang.getJcrName());
                if (StringUtils.isNotBlank(language)) {
                    currentLocale = language;
                } else {
                    createDefaultLocale();
                }

            } else {
                createDefaultLocale();
            }
        } else {
            //It's probably an xml element inside documentation
            //Load it as is, but we have to prefixed and suffixed it with < and >
            //Use qname in case element is prefixed
            addData("<" + qName + ">");
        }
    }

    private void createDefaultLocale() {
        currentLocale = Locale.ENGLISH.toString();
    }

    public void startPrefixMapping(String prefix, String uri) throws SAXException {

    }

}