/*
    * 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.commons.jcs3.jcache.cdi;
  
  import java.lang.annotation.Annotation;
  
  import javax.cache.annotation.CacheInvocationParameter;
  import javax.cache.annotation.CacheKeyInvocationContext;
  import javax.interceptor.InvocationContext;
  
  public class CacheKeyInvocationContextImpl<A extends Annotation> extends CacheInvocationContextImpl<A> implements CacheKeyInvocationContext<A>
  {
      private CacheInvocationParameter[] keyParams;
      private CacheInvocationParameter valueParam;
  
      public CacheKeyInvocationContextImpl(final InvocationContext delegate, final A annotation, final String name,
                                           final CDIJCacheHelper.MethodMeta methodMeta)
      {
          super(delegate, annotation, name, methodMeta);
      }
  
      @Override
      public CacheInvocationParameter[] getKeyParameters()
      {
          if (keyParams == null)
          {
              keyParams = doGetAllParameters(meta.getKeysIndices());
          }
          return keyParams;
      }
  
      @Override
      public CacheInvocationParameter getValueParameter()
      {
          if (valueParam == null)
          {
              valueParam = meta.getValueIndex() >= 0 ? doGetAllParameters(new Integer[]{meta.getValueIndex()})[0] : null;
          }
          return valueParam;
      }
  }