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PluginManager.java
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PluginManager.java
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/*
* Copyright 2021 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License"). You may not use this file except in compliance
* with the License. A copy of the License is located at
*
* http://aws.amazon.com/apache2.0/
*
* or in the "license" file accompanying this file. This file 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 ai.djl.serving.plugins;
import java.util.Collection;
import java.util.Set;
/**
* The Plugin Manager is responsible to load and manage plugins from the filesystem.
*
* <p>The Plugin Folder configuration is received from the ConfigManager and usually defaults to
* {workpath}/plugins. The plugins uses Java's SPI and have to implement interfaces from
* serving-api.
*
* @author erik.bamberg@web.de
*/
public interface PluginManager {
/**
* Returns a set of plug-in components implementing the specific service interface.
*
* <p>only active plug-ins are returned which are fully initialised at this point.
*
* <p>{@code Set<RequestHandler>
* allActiveRequestHandler=findImplementations(RequestHandler.class)}
*
* @param <T> generic type of service interface
* @param pluginInterface the specific service interface
* @return a set of all plugin components implementing this service interface
*/
<T> Set<T> findImplementations(Class<T> pluginInterface);
/**
* Returns a collection of all plugins registered.
*
* @return collection of all registered plugins.
*/
Collection<PluginMetaData> listPlugins();
}