package org.webslinger.bsf;

 import java.util.Iterator;

 import java.util.logging.Logger;

 import javax.imageio.spi.ServiceRegistry;

 import org.apache.bsf.BSFEngine;

 import org.apache.bsf.BSFException;

 import org.webslinger.vfs.VFSDelegate;

 import org.webslinger.vfs.TypeVFSDelegate;

 public class LanguageManager extends AbstractManager {

     public LanguageManager(Logger logger) throws BSFException {

         this(TypeVFSDelegate.DEFAULT, logger);

     }

     public LanguageManager(VFSDelegate<?, Object, ?> vfsDelegate, Logger logger) throws BSFException {

         super(vfsDelegate, logger);

         postConstruct();

     }

     public void findLanguageEngines(ClassLoader loader) {

         if (loader == null) return;

         Iterator<LanguageEngineInfo> it = ServiceRegistry.lookupProviders(LanguageEngineInfo.class, loader);

         while (it.hasNext()) {

             try {

                 LanguageEngineInfo info = it.next();

                 for (String name: info.getNames()) {

                     registerLanguageEngine(name, info.getImplClassName(name), info.getExtensions(name));

                 }

             } catch (RuntimeException e) {

             } catch (UnsupportedClassVersionError e) {

             }

         }

     }

     protected LanguageEngine getLanguageEngineConvertor(String language, BSFEngine engine) throws BSFException {

         return new LanguageEngineConvertor(language, this, engine);

     }

 }