hibernate-commits

[<one...@us...>]

Update of /cvsroot/hibernate/Hibernate2/src/net/sf/hibernate/tool/hbm2java
In directory sc8-pr-cvs1:/tmp/cvs-serv8993a/net/sf/hibernate/tool/hbm2java

Added Files:
	MetaAttributeHelper.java 
Log Message:
applied Max Andersen's patch for <meta>attributes in hbm2java

--- NEW FILE: MetaAttributeHelper.java ---
package net.sf.hibernate.tool.hbm2java;

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

import org.apache.commons.collections.MultiHashMap;
import org.apache.commons.collections.MultiMap;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.jdom.Element;

/**
 * Helper for loading, merging  and accessing <meta> tags.
 * 
 * @author max
 *
 * 
 */
public class MetaAttributeHelper {

    static private Log log = LogFactory.getLog(MetaAttributeHelper.class);
    
    /**
     * Load meta attributes from jdom element into a MultiMap.
     * 
     * @param element
     * @return MultiMap
     */
    static protected MultiMap loadMetaMap(Element element) {
        MultiMap result = new MultiHashMap();
        List metaAttributeList = new ArrayList();
        metaAttributeList.addAll(element.getChildren("meta"));

        for (Iterator iter = metaAttributeList.iterator(); iter.hasNext();) {
            Element metaAttrib = (Element) iter.next();
            // does not use getTextNormalize() or getTextTrim() as that would remove the formatting in new lines in items like description for javadocs.
            result.put(metaAttrib.getAttribute("attribute").getValue(), metaAttrib.getText());
        }
        return result;

    }

    /**
     * Merges a Multimap with inherited maps.
     * Values specified always overrules/replaces the inherited values.
     * 
     * @param local
     * @param inherited
     * @return a MultiMap with all values from local and extra values
     * from inherited
     */
    static public MultiMap mergeMetaMaps(MultiMap local, MultiMap inherited) {
        MultiHashMap result = new MultiHashMap();
        
        if (inherited != null) {
            result.putAll(local);
            for (Iterator iter = inherited.keySet().iterator(); iter.hasNext();) {
                String key = (String) iter.next();

                if (!local.containsKey(key)) {
                    // inheriting a meta attribute
                    result.put(key, inherited.get(key));
                } 
            }
        }
        
       
        return result;
        

    }
    /**
     * Method loadAndMergeMetaMap.
     * @param classElement
     * @param inheritedMeta
     * @return MultiMap
     */
    public static MultiMap loadAndMergeMetaMap(Element classElement, MultiMap inheritedMeta) {
        return mergeMetaMaps(loadMetaMap(classElement), inheritedMeta);
    }

}