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/*
 * 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.spi;

import java.util.function.Supplier;

/**
 * A manager for internal plugins. This is part of the internal Camel API and not meant for public usage.
 */
public interface PluginManager {

    /**
     * Gets a plugin of the given type.
     *
     * @param  type the type of the extension
     * @return      the extension, or null if no extension has been installed.
     */
     T getContextPlugin(Class type);

    /**
     * Allows installation of custom plugins to the Camel context.
     *
     * @param type   the type of the extension
     * @param module the instance of the extension
     */
     void addContextPlugin(Class type, T module);

    /**
     * Allows lazy installation of custom plugins to the Camel context.
     *
     * @param type   the type of the extension
     * @param module the instance of the extension
     */
     void lazyAddContextPlugin(Class type, Supplier module);
}