pl.chilldev.web.spring.config.KeywordsBeanDefinitionParser.java Source code

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Here is the source code for pl.chilldev.web.spring.config.KeywordsBeanDefinitionParser.java

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/**
 * This file is part of the ChillDev-Web.
 *
 * @license http://mit-license.org/ The MIT license
 * @copyright 2014  by Rafa Wrzeszcz - Wrzasq.pl.
 */

package pl.chilldev.web.spring.config;

import java.util.ArrayList;
import java.util.List;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import org.springframework.beans.factory.config.BeanDefinition;
import org.springframework.beans.factory.xml.BeanDefinitionParser;
import org.springframework.beans.factory.xml.ParserContext;

import org.springframework.util.xml.DomUtils;

import org.w3c.dom.Element;

/**
 * `<keywords>` element parser.
 *
 * @version 0.0.2
 * @since 0.0.1
 */
public class KeywordsBeanDefinitionParser implements BeanDefinitionParser {
    /**
     * `<keyword>` element name.
     */
    public static final String ELEMENT_KEYWORD = "keyword";

    /**
     * Keywords property name.
     */
    public static final String PROPERTY_KEYWORDS = "keywords";

    /**
     * Logger.
     */
    protected Logger logger = LoggerFactory.getLogger(KeywordsBeanDefinitionParser.class);

    /**
     * Initial keywords.
     */
    protected List<String> keywords = new ArrayList<>();

    /**
     * Initializes bean parser.
     *
     * @param pageMetaModelFactoryBean Page model factory.
     * @since 0.0.2
     */
    public KeywordsBeanDefinitionParser(BeanDefinition pageMetaModelFactoryBean) {
        pageMetaModelFactoryBean.getPropertyValues()
                .addPropertyValue(KeywordsBeanDefinitionParser.PROPERTY_KEYWORDS, this.keywords);
    }

    /**
     * {@inheritDoc}
     * @since 0.0.1
     */
    @Override
    public BeanDefinition parse(Element element, ParserContext parserContext) {
        String keyword;
        for (Element child : DomUtils.getChildElementsByTagName(element,
                KeywordsBeanDefinitionParser.ELEMENT_KEYWORD)) {
            keyword = DomUtils.getTextValue(child);

            this.logger.info("Adding \"{}\" as keyword.", keyword);
            this.keywords.add(keyword);
        }

        return null;
    }
}