/*
 * 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.jcs.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 = null;
    private CacheInvocationParameter valueParam = null;

    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;
    }
}