package org.webslinger.bsf;

 import java.beans.PropertyChangeEvent;

 import java.util.HashMap;

 import java.util.Iterator;

 import java.util.Map;

 import java.util.Vector;

 import java.util.concurrent.ConcurrentHashMap;

 import org.apache.bsf.BSFDeclaredBean;

 import org.apache.bsf.BSFException;

 import org.apache.bsf.BSFManager;

 import org.apache.bsf.util.BSFFunctions;

 public abstract class GenericEngineImpl implements GenericEngine {

     public static final boolean GLOBAL_DEBUG = false;

     protected BSFManager manager;

     protected String language;

     private ConcurrentHashMap<String, BSFDeclaredBean> beans = new ConcurrentHashMap<String, BSFDeclaredBean>();

     protected BSFFunctions bsfFunctions;

     protected boolean localDebug;

     protected GenericEngineImpl() {

     }

     public BSFFunctions getBSFFunctions() {

         return bsfFunctions;

     }

     public Map getBeans() {

         return beans;

     }

     public boolean getDebug() {

         return localDebug;

     }

     public void setDebug(boolean debug) {

         localDebug = debug;

     }

     public boolean isDebugOn() {

         return GLOBAL_DEBUG || localDebug;

     }

     public String getLanguage() {

         return language;

     }

     public BSFManager getManager() {

         return manager;

     }

     public Object apply(String source, int lineNo, int columnNo, Object body, Vector paramNames, Vector argVector, Vector typeVector) throws BSFException {

         return apply(source, lineNo, columnNo, body, paramNames, argVector);

     }

     public void terminate() {

         reset();

     }

     public void initialize(BSFManager manager, String lang, Vector declaredBeans) throws BSFException {

         this.manager = manager;

         this.language = lang;

         bsfFunctions = new BSFFunctions(manager, this);

         Iterator it = declaredBeans.iterator();

         while (it.hasNext()) {

             BSFDeclaredBean bean = (BSFDeclaredBean) it.next();

             beans.put(bean.name, bean);

         }

         reset();

     }

     public void undeclareBean(BSFDeclaredBean bean) throws BSFException {

         beans.remove(bean.name);

     }

     public void declareBean(BSFDeclaredBean bean) throws BSFException {

         beans.put(bean.name, bean);

     }

     protected void reset() {

     }

     public void propertyChange(PropertyChangeEvent event) {

         System.err.println("event=" + event);

     }

 }