AugmenterInvokerImpl.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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 org.apache.aries.jndi;

import java.util.Hashtable;

import org.apache.aries.jndi.spi.EnvironmentAugmentation;
import org.apache.aries.jndi.spi.EnvironmentUnaugmentation;
import org.apache.aries.jndi.spi.AugmenterInvoker;
import org.apache.aries.jndi.startup.Activator;


public class AugmenterInvokerImpl implements AugmenterInvoker {
  
    private static AugmenterInvokerImpl instance = null;
    
    public static AugmenterInvokerImpl getInstance() {
      if (instance == null) {
        instance = new AugmenterInvokerImpl();
      }
      return instance;
    }


    public void augmentEnvironment(Hashtable<?, ?> environment) 
    {
      Object[] objects = Activator.getEnvironmentAugmentors();
      
      if (objects != null) {
        for (Object obj : objects) {
          if (obj instanceof EnvironmentAugmentation) {
            ((EnvironmentAugmentation)obj).augmentEnvironment(environment);
          }
        }
      }
    }
    
    public void unaugmentEnvironment(Hashtable<?, ?> environment) 
    {
      Object[] objects = Activator.getEnvironmentUnaugmentors();
      
      if (objects != null) {
        for (Object obj : objects) {
          if (obj instanceof EnvironmentUnaugmentation) {
            ((EnvironmentUnaugmentation)obj).unaugmentEnvironment(environment);
          }
        }
      }
    }
}