| /* |
| 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.wiki.plugin; |
| |
| import org.apache.oro.text.regex.Pattern; |
| import org.apache.wiki.WikiContext; |
| import org.apache.wiki.api.exceptions.PluginException; |
| import org.apache.wiki.api.plugin.WikiPlugin; |
| import org.apache.wiki.modules.ModuleManager; |
| |
| import java.io.IOException; |
| import java.util.Map; |
| import java.util.ResourceBundle; |
| |
| |
| public interface PluginManager extends ModuleManager { |
| |
| /** The property name defining which packages will be searched for plugin classes. */ |
| String PROP_SEARCHPATH = "jspwiki.plugin.searchPath"; |
| |
| /** The property name defining which external jars will be added to the classpath when searching for plugin classes. */ |
| String PROP_EXTERNALJARS = "jspwiki.plugin.externalJars"; |
| |
| /** This is the default package to try in case the instantiation fails. */ |
| String DEFAULT_PACKAGE = "org.apache.wiki.plugin"; |
| |
| /** The name of the body content. Current value is "_body". */ |
| String PARAM_BODY = "_body"; |
| |
| /** The name of the command line content parameter. The value is "_cmdline". */ |
| String PARAM_CMDLINE = "_cmdline"; |
| |
| /** |
| * The name of the parameter containing the start and end positions in the read stream of the plugin text (stored as a two-element |
| * int[], start and end resp.). |
| */ |
| String PARAM_BOUNDS = "_bounds"; |
| |
| /** A special name to be used in case you want to see debug output */ |
| String PARAM_DEBUG = "debug"; |
| |
| /** |
| * Enables or disables plugin execution. |
| * |
| * @param enabled True, if plugins should be globally enabled; false, if disabled. |
| */ |
| void enablePlugins( boolean enabled ); |
| |
| /** |
| * Returns plugin execution status. If false, plugins are not executed when they are encountered on a WikiPage, and an |
| * empty string is returned in their place. |
| * |
| * @return True, if plugins are enabled; false otherwise. |
| */ |
| boolean pluginsEnabled(); |
| |
| /** |
| * Returns plugin insert pattern. |
| * |
| * @return plugin insert pattern. |
| */ |
| Pattern getPluginPattern(); |
| |
| /** |
| * Returns plugins' search path. |
| * |
| * @return plugins' search path. |
| */ |
| String getPluginSearchPath(); |
| |
| /** |
| * Executes a plugin class in the given context. |
| * <P>Used to be private, but is public since 1.9.21. |
| * |
| * @param context The current WikiContext. |
| * @param classname The name of the class. Can also be a shortened version without the package name, since the class name is |
| * searched from the package search path. |
| * @param params A parsed map of key-value pairs. |
| * @return Whatever the plugin returns. |
| * @throws PluginException If the plugin execution failed for some reason. |
| * |
| * @since 2.0 |
| */ |
| String execute( WikiContext context, String classname, Map< String, String > params ) throws PluginException; |
| |
| /** |
| * Parses plugin arguments. Handles quotes and all other kewl stuff. |
| * |
| * <h3>Special parameters</h3> |
| * The plugin body is put into a special parameter defined by {@link #PARAM_BODY}; the plugin's command line into a parameter defined |
| * by {@link #PARAM_CMDLINE}; and the bounds of the plugin within the wiki page text by a parameter defined by {@link #PARAM_BOUNDS}, |
| * whose value is stored as a two-element int[] array, i.e., <tt>[start,end]</tt>. |
| * |
| * @param argstring The argument string to the plugin. This is typically a list of key-value pairs, using "'" to escape |
| * spaces in strings, followed by an empty line and then the plugin body. In case the parameter is null, will return an |
| * empty parameter list. |
| * @return A parsed list of parameters. |
| * @throws IOException If the parsing fails. |
| */ |
| Map< String, String > parseArgs( String argstring ) throws IOException; |
| |
| /** |
| * Parses a plugin. Plugin commands are of the form: |
| * {@code [{INSERT myplugin WHERE param1=value1, param2=value2}] } |
| * myplugin may either be a class name or a plugin alias. |
| * <P> |
| * This is the main entry point that is used. |
| * |
| * @param context The current WikiContext. |
| * @param commandline The full command line, including plugin name, parameters and body. |
| * @return HTML as returned by the plugin, or possibly an error message. |
| * |
| * @throws PluginException From the plugin itself, it propagates, waah! |
| */ |
| String execute( WikiContext context, String commandline ) throws PluginException; |
| |
| /** |
| * Creates a {@link WikiPlugin}. |
| * |
| * @param pluginName plugin's classname |
| * @param rb {@link ResourceBundle} with i18ned text for exceptions. |
| * @return a {@link WikiPlugin}. |
| * @throws PluginException if there is a problem building the {@link WikiPlugin}. |
| */ |
| WikiPlugin newWikiPlugin( String pluginName, ResourceBundle rb ) throws PluginException; |
| |
| } |