batchserver-cvs

[Suresh <sur...@us...>]

Update of /cvsroot/batchserver/batchserver/src/org/jmonks/batchserver/framework/util
In directory sc8-pr-cvs3.sourceforge.net:/tmp/cvs-serv21323/framework/util

Added Files:
	FrameworkUtil.java 
Log Message:
no message

--- NEW FILE: FrameworkUtil.java ---
package org.jmonks.batchserver.framework.util;

import java.util.Map;
import java.util.StringTokenizer;
import java.util.logging.Logger;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;


/**
 *      <p>
 *	FramworkUtil contains utility methods required by the framework.
 *      </p>
 *	<p>
 *	Note : This class does not maintain any state. Keep all the methods as static
 *      </p>
 *
 *	@author     Suresh Pragada
 *      @version    1.0
 *      @since      1.0
 */

public final class FrameworkUtil
{
    private static Logger logger=Logger.getLogger(FrameworkUtil.class.getName());
    /**
     *  Private constructor to make sure it will not be instantiated.
     */
    private FrameworkUtil()
    {
        /**
         *	Just to make sure this class will not be instantiated.
         */
    }
    
    /**
     * <p>
     * Loads the property elements exists in the given element to the given map.
     * This looks for the &lt;property&gt; elements in the given element and looks 
     * for the value of "key" attribute and the values of &lt;property&gt; element
     * and load them as key values pairs.
     * </p>
     * <p>
     *  Property elements should be in the following format.<br><br>
     *  &lt;property key="some-config-key1"&gt;some-config-value1&lt;/property&gt;
     * </p>
     * 
     * @param   configElement   DOM Element consists of &lt;property&gt; elements.
     * @param   propertyMap Map to be loaded with property key values.
     *
     * @throws  IllegalArgumentException    If either configElement or propertyMap is null.
     */
    public static void loadPropertiesFromElementToMap(Element configElement,Map propertyMap)
    {
        logger.entering(FrameworkUtil.class.getName(),"loadPropertiesFromElementToMap");
        if(configElement==null)
            throw new IllegalArgumentException("Input configuration element configElement cannot be null");
        
        if(propertyMap==null)
            throw new IllegalArgumentException("Input properties map propertyMap cannot be null");
        
        NodeList propertyElements=configElement.getElementsByTagName("property");
        for(int i=0;i<propertyElements.getLength();i++)
        {
            Element propertyElement=(Element)propertyElements.item(i);
            String key=propertyElement.getAttribute("key");
            String value="";
            NodeList propertyValueNodes=propertyElement.getChildNodes();
            for(int j=0;j<propertyValueNodes.getLength();j++)
            {
                Node propertyValueNode=propertyValueNodes.item(j);
                if(propertyValueNode.getNodeType()==Node.TEXT_NODE || 
                        propertyValueNode.getNodeType()==Node.CDATA_SECTION_NODE)
                {
                    value=propertyValueNode.getNodeValue();
                    break;
                }
            }
            propertyMap.put(key,value);
        }
        logger.exiting(FrameworkUtil.class.getName(),"loadPropertiesFromElementToMap");
    }
    
    /**
     * <p>
     * Loads the property key value pairs exists in the given string to the given map.
     * This looks for the properties in concantenated by ":" and each property in turn
     * concatenated by "=".
     * </p>
     * <p>
     *  Property elements should be in the following format.<br><br>
     *  key1=value1:key2=value2
     * </p>
     * 
     * @param   propertiesString   String consists of properties.
     * @param   propertyMap Map to be loaded with property key values.
     *
     * @throws  IllegalArgumentException    If either propertiesString or propertyMap is null.
     */
    public static void loadPropertiesFromStringToMap(String propertiesString,Map propertyMap)
    {
        logger.entering(FrameworkUtil.class.getName(),"loadPropertiesFromStringToMap");
        if(propertiesString==null)
            throw new IllegalArgumentException("Input properties string cannot be null");
        
        if(propertyMap==null)
            throw new IllegalArgumentException("Input properties map propertyMap cannot be null");

        StringTokenizer propertiesTokenizer=new StringTokenizer(propertiesString,":");
        while(propertiesTokenizer.hasMoreTokens())
        {
            String property=propertiesTokenizer.nextToken();
            if(property!=null && !"".equals(property.trim()))
            {
                StringTokenizer propertyTokenizer=new StringTokenizer(property,"=");
                String key=propertyTokenizer.nextToken();
                String value=propertyTokenizer.nextToken();
                propertyMap.put(key,value);
            }
        }
        logger.exiting(FrameworkUtil.class.getName(),"loadPropertiesFromStringToMap");        
    }   
}