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/*
* Copyright 2012 Decebal Suiu
*
* Licensed 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.pf4j;
import java.nio.file.Path;
import java.util.List;
import java.util.Set;
/**
* Provides the functionality for plugin management such as load,
* start and stop the plugins.
*
* @author Decebal Suiu
*/
public interface PluginManager {
/**
* Retrieves all plugins.
*/
List<PluginWrapper> getPlugins();
/**
* Retrieves all plugins with this state.
*/
List<PluginWrapper> getPlugins(PluginState pluginState);
/**
* Retrieves all resolved plugins (with resolved dependency).
*/
List<PluginWrapper> getResolvedPlugins();
/**
* Retrieves all unresolved plugins (with unresolved dependency).
*/
List<PluginWrapper> getUnresolvedPlugins();
/**
* Retrieves all started plugins.
*/
List<PluginWrapper> getStartedPlugins();
/**
* Retrieves the plugin with this id, or null if the plugin does not exist.
*
* @param pluginId The pluginId for the plugin you are trying to get.
* @return A PluginWrapper object for this plugin, or null if it does not exist.
*/
PluginWrapper getPlugin(String pluginId);
/**
* Load plugins.
*/
void loadPlugins();
/**
* Load a plugin.
*
* @param pluginPath
* @return the pluginId of the installed plugin or null
*/
String loadPlugin(Path pluginPath);
/**
* Start all active plugins.
*/
void startPlugins();
/**
* Start the specified plugin and it's dependencies.
*
* @return the plugin state
*/
PluginState startPlugin(String pluginId);
/**
* Stop all active plugins.
*/
void stopPlugins();
/**
* Stop the specified plugin and it's dependencies.
*
* @return the plugin state
*/
PluginState stopPlugin(String pluginId);
/**
* Unload a plugin.
*
* @param pluginId
* @return true if the plugin was unloaded
*/
boolean unloadPlugin(String pluginId);
/**
* Disables a plugin from being loaded.
*
* @param pluginId
* @return true if plugin is disabled
*/
boolean disablePlugin(String pluginId);
/**
* Enables a plugin that has previously been disabled.
*
* @param pluginId
* @return true if plugin is enabled
*/
boolean enablePlugin(String pluginId);
/**
* Deletes a plugin.
*
* @param pluginId
* @return true if the plugin was deleted
*/
boolean deletePlugin(String pluginId);
ClassLoader getPluginClassLoader(String pluginId);
<T> List<T> getExtensions(Class<T> type);
<T> List<T> getExtensions(Class<T> type, String pluginId);
List getExtensions(String pluginId);
Set<String> getExtensionClassNames(String pluginId);
ExtensionFactory getExtensionFactory();
/**
* The runtime mode. Must currently be either DEVELOPMENT or DEPLOYMENT.
*/
RuntimeMode getRuntimeMode();
/**
* Retrieves the {@link PluginWrapper} that loaded the given class 'clazz'.
*/
PluginWrapper whichPlugin(Class<?> clazz);
void addPluginStateListener(PluginStateListener listener);
void removePluginStateListener(PluginStateListener listener);
/**
* Set the system version. This is used to compare against the plugin
* requires attribute. The default system version is 0.0.0 which
* disables all version checking.
*
* @default 0.0.0
* @param version
*/
void setSystemVersion(String version);
/**
* Returns the system version.
*
* @return the system version
*/
String getSystemVersion();
/**
* Gets the path of the folder where plugins are installed
* @return Path of plugins root
*/
Path getPluginsRoot();
VersionManager getVersionManager();
}
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