edu.wustl.geneconnect.bizlogic.AbstractBizLogicFactory.java Source code

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Here is the source code for edu.wustl.geneconnect.bizlogic.AbstractBizLogicFactory.java

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/*L
 * Copyright Washington University at St. Louis
 *
 * Distributed under the OSI-approved BSD 3-Clause License.
 * See http://ncip.github.com/geneconnect/LICENSE.txt for details.
 */

/**
 *<p>ClassName: java edu.wustl.geneconnect.bizlogic.AbstractBizLogicFactory</p> 
 */

package edu.wustl.geneconnect.bizlogic;

import java.io.InputStream;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;

import org.dom4j.Document;
import org.dom4j.DocumentException;
import org.dom4j.Element;
import org.dom4j.io.SAXReader;

import edu.wustl.geneconnect.exception.GCRuntimeException;
import edu.wustl.geneconnect.util.global.GCConstants;

/**
 * This is a base class for all the Business logic factories.
 * This class implements the logic of reading the configuration XML file
 *
 * @author mahesh_nalkande
 * @version 1.0
 * TODO : Later on this needs to moved to the Common Package
 */
public abstract class AbstractBizLogicFactory {

    /**
     * This method updates module map by parsing xml file
     * @param xmlFileName file to be parsed
     * @return  moduleMap Map
     */
    public final Map updateModuleMap(String xmlFileName) {
        Map moduleMap = new HashMap();
        SAXReader saxReader = new SAXReader();
        InputStream inputStream = this.getClass().getClassLoader().getResourceAsStream(xmlFileName);
        Document document = null;

        try {

            document = saxReader.read(inputStream);
            Element businessLogics = document.getRootElement();
            Iterator businessLogicIterator = businessLogics
                    .elementIterator(GCConstants.BUSINESS_LOGIC_ELEMENT_ITERATOR);
            Element businessLogic = null;
            Element businessAction = null;
            Element instanceType = null;
            String instanceTypeString = null;
            String businessActionString = null;
            /**
             * Iterate over bizlogic.xml file and find the class ned to instantiate and return it.
             */
            while (businessLogicIterator.hasNext()) {
                try {
                    businessLogic = (Element) businessLogicIterator.next();
                    businessAction = businessLogic.element(GCConstants.BUSINESS_ACTION_ELEMENT);
                    instanceType = businessLogic.element(GCConstants.INSTANCE_TYPE_ELEMENT);
                    //               moduleMap.put(businessAction.getStringValue(), Class.forName(
                    //                     instanceType.getStringValue()).newInstance());
                    moduleMap.put(businessAction.getStringValue(), instanceType.getStringValue());
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        } catch (DocumentException e) {
            throw new GCRuntimeException(e);
        } catch (Exception e) {
            throw new GCRuntimeException(e);
        }
        return moduleMap;
    }
}