/*
    * Copyright 2012 Oracle Corporation. All Rights Reserved.
    *
    * Licensed under the Apache License, Version 2.0 (the "License");
    * you may not use this file except in compliance with the License.
    * You may obtain a copy of the License at
    *
    *    http://www.apache.org/licenses/LICENSE-2.0
    *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package com.fatwire.gst.foundation.groovy.context;
  
  import org.apache.commons.lang.StringUtils;
  
  import COM.FutureTense.Interfaces.ICS;
  
  import com.fatwire.gst.foundation.controller.action.Factory;
  import com.fatwire.gst.foundation.controller.action.support.BaseFactory;
  
  /**
   * 
   * Factory that dynamically loads other classes that provide producer methods.
   * 
   * @author Dolf Dijkstra
   * @since September 23, 2012
   * 
   */
  public class GroovyFactory extends BaseFactory {
  
      private final ClassLoader classLoader;
      private Class<?> generalFactoryClass;
  
      public GroovyFactory(ICS ics, ClassLoader gcl, Factory... roots) {
          super(ics, roots);
          this.classLoader = gcl;
          try {
              this.generalFactoryClass = classLoader.loadClass("gsf.ObjectFactory");
          } catch (ClassNotFoundException e) {
              // ignore
              this.generalFactoryClass = null;
          }
  
      }
  
      @Override
      protected Class<?>[] factoryClasses(ICS ics) {
          String site = ics.GetVar("site");
          Class<?> siteClass = null;
  
          if (StringUtils.isNotBlank(site)) {
              try {
                  siteClass = classLoader.loadClass("gsf." + site.toLowerCase() + ".ObjectFactory");
              } catch (ClassNotFoundException e) {
                  // ignore
              }
          }
          if (siteClass == null) {
              if (generalFactoryClass == null) {
                  return new Class[0];
              } else {
                  return new Class[] { generalFactoryClass };
              }
          } else {
              if (generalFactoryClass == null) {
                  return new Class[] { siteClass };
              } else {
                  return new Class[] { siteClass, generalFactoryClass };
              }
  
          }
      }
  }