package org.codehaus.mojo.natives.manager;
   
   /*
    * The MIT License
    *
    * Copyright (c) 2004, The Codehaus
    *
    * Permission is hereby granted, free of charge, to any person obtaining a copy of
    * this software and associated documentation files (the "Software"), to deal in
   * the Software without restriction, including without limitation the rights to
   * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
   * of the Software, and to permit persons to whom the Software is furnished to do
   * so, subject to the following conditions:
   * 
   * The above copyright notice and this permission notice shall be included in all
   * copies or substantial portions of the Software.
   * 
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
   * SOFTWARE.
   */
  
  import org.codehaus.mojo.natives.compiler.MessageCompiler;
  
  import org.codehaus.plexus.logging.AbstractLogEnabled;
  import org.codehaus.plexus.personality.plexus.lifecycle.phase.Initializable;
  
  import java.util.HashMap;
  import java.util.Map;
  import org.codehaus.plexus.component.annotations.Component;
  import org.codehaus.plexus.component.annotations.Requirement;
  
  @Component(role = MessageCompilerManager.class, hint = "native-message-compiler-provider-manager")
  public class DefaultMessageCompilerManager
      extends AbstractLogEnabled
      implements MessageCompilerManager, Initializable
  {
      @Requirement(role = MessageCompiler.class)
      private Map providers;
  
      // ----------------------------------------------------------------------
      // Component Lifecycle
      // ----------------------------------------------------------------------
  
      public void initialize()
      {
          if ( providers == null )
          {
              providers = new HashMap();
          }
  
          if ( providers.size() == 0 )
          {
              getLogger().warn( "No compiler providers configured." );
          }
      }
  
      public MessageCompiler getMessageCompiler( String providerType )
          throws NoSuchNativeProviderException
      {
  
          MessageCompiler provider = (MessageCompiler) providers.get( providerType );
  
          if ( provider == null )
          {
              throw new NoSuchNativeProviderException( providerType );
          }
  
          return provider;
      }
  }