/**
 * 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.camel.test.cdi;

import java.util.concurrent.atomic.AtomicReference;
import javax.enterprise.inject.spi.BeanManager;

final class CamelCdiContext {

    private final AtomicReference<BeanManager> manager = new AtomicReference<>();

    BeanManager getBeanManager() {
        BeanManager manager = this.manager.get();
        if (manager == null) {
            throw new IllegalStateException("Bean manager is not set!");
        }
        return manager;
    }

    void setBeanManager(BeanManager manager) {
        if (!this.manager.compareAndSet(null, manager)) {
            throw new IllegalStateException("Bean manager already set!");
        }
    }

    void unsetBeanManager() {
        if (manager.getAndSet(null) == null) {
            throw new IllegalStateException("Bean manager is not set!");
        }
    }
}