/*
    * Copyright (C) 2003-2012 David E. Berry
    *
    * This library is free software; you can redistribute it and/or
    * modify it under the terms of the GNU Lesser General Public
    * License as published by the Free Software Foundation; either
    * version 2.1 of the License, or (at your option) any later version.
    *
    * This library is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   * Lesser General Public License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
   *
   * A copy of the GNU Lesser General Public License may also be found at
   * http://www.gnu.org/licenses/lgpl.txt
   */
  package org.synchronoss.cpo.cache;
  
  import org.synchronoss.cpo.meta.CpoMetaDescriptor;
  
  import java.util.*;
  
  /**
   * @author dberry
   */
  public class CpoMetaDescriptorCache {
  
    private static final Map<String, CpoMetaDescriptor> metaDescriptorMap = new HashMap<String, CpoMetaDescriptor>();
  
    protected static CpoMetaDescriptor findCpoMetaDescriptor(String adapterKey) {
      CpoMetaDescriptor metaDescriptor = null;
      if (adapterKey != null) {
        metaDescriptor = metaDescriptorMap.get(adapterKey);
      }
  
      return metaDescriptor;
    }
  
    protected static CpoMetaDescriptor addCpoMetaDescriptor(CpoMetaDescriptor metaDescriptor) {
      CpoMetaDescriptor oldMetaDescriptor = null;
      if (metaDescriptor != null && metaDescriptor.getName() != null) {
        oldMetaDescriptor = metaDescriptorMap.put(metaDescriptor.getName(), metaDescriptor);
      }
      return oldMetaDescriptor;
    }
  
    /**
     * @return A collection of names of all meta descriptors currently loaded
     */
    protected static Collection<String> getCpoMetaDescriptorNames() {
      return metaDescriptorMap.keySet();
    }
  
    protected static void removeCpoMetaDescriptor(String adapterKey) {
      metaDescriptorMap.remove(adapterKey);
    }
  
    protected static void clearCpoMetaDescriptorCache() {
      metaDescriptorMap.clear();
    }
  }