Package fr.gouv.vitam.worker.core.plugin

Class PluginLoader

java.lang.Object

fr.gouv.vitam.worker.core.plugin.PluginLoader

public class PluginLoader
extends Object

load all the plugins according to plugins.json file.

Constructor Summary

Constructors

Constructor	Description
PluginLoader()	create instance with the default configuration file

Method Summary

Modifier and Type	Method	Description
boolean	contains(String pluginId)	test if a plugin is present
Map<String,ActionHandler>	loadAllPlugins()	load All the plugins, and return a Map an instance of each plugin WARNING : plugins are not thread safe
void	loadConfiguration()	load the configuration file containing the list of plugins.
ActionHandler	newInstance(String pluginId)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

PluginLoader

public PluginLoader()
             throws IllegalPathException

create instance with the default configuration file

Throws:

IllegalPathException

Method Details

loadConfiguration

public void loadConfiguration()
                       throws FileNotFoundException,
InvalidParseOperationException,
PluginNotFoundException

load the configuration file containing the list of plugins. file is a json format.

Example :

 

 {
   "CHECK_DIGEST": {
     "className": "fr.gouv.vitam.worker.core.plugin.CheckConformityActionPlugin",
     "propertiesFile": "check_conformity_plugin.properties"
   }
 }
 
 

Throws:

FileNotFoundException - if file is not found

InvalidParseOperationException - if file cannot be parsed

PluginNotFoundException - if the plugin is not found in the classpath

contains

public boolean contains(String pluginId)

test if a plugin is present

Parameters:

pluginId - id plugin

Returns:

true if present, false otherwise

newInstance

public ActionHandler newInstance(String pluginId)
                          throws InvocationPluginException,
PluginNotFoundException

Parameters:

pluginId - id of a plugin

Returns:

an new instance of a plugin

Throws:

InvocationPluginException - the plugin cannot be instanciate.

PluginNotFoundException - the plugin is not present

loadAllPlugins

public Map<String,ActionHandler> loadAllPlugins()
                                         throws InvocationPluginException

load All the plugins, and return a Map an instance of each plugin WARNING : plugins are not thread safe

Returns:

list of all plugins

Throws:

InvocationPluginException - if a plugin cannot be instance