690 lines
27 KiB
Java
690 lines
27 KiB
Java
package org.bukkit.plugin;
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import java.io.File;
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import java.lang.reflect.Constructor;
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import java.lang.reflect.Method;
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import java.util.ArrayList;
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import java.util.Collection;
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import java.util.HashMap;
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import java.util.HashSet;
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import java.util.Iterator;
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import java.util.LinkedHashMap;
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import java.util.LinkedList;
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import java.util.List;
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import java.util.Map;
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import java.util.Set;
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import java.util.WeakHashMap;
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import java.util.logging.Level;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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import org.apache.commons.lang.Validate;
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import org.bukkit.Server;
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import org.bukkit.command.Command;
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import org.bukkit.command.PluginCommandYamlParser;
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import org.bukkit.command.SimpleCommandMap;
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import org.bukkit.event.Event;
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import org.bukkit.event.EventPriority;
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import org.bukkit.event.HandlerList;
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import org.bukkit.event.Listener;
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import org.bukkit.permissions.Permissible;
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import org.bukkit.permissions.Permission;
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import org.bukkit.permissions.PermissionDefault;
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import org.bukkit.util.FileUtil;
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import com.google.common.collect.ImmutableSet;
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/**
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* Handles all plugin management from the Server
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*/
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public final class SimplePluginManager implements PluginManager {
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private final Server server;
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private final Map<Pattern, PluginLoader> fileAssociations = new HashMap<Pattern, PluginLoader>();
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private final List<Plugin> plugins = new ArrayList<Plugin>();
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private final Map<String, Plugin> lookupNames = new HashMap<String, Plugin>();
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private static File updateDirectory = null;
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private final SimpleCommandMap commandMap;
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private final Map<String, Permission> permissions = new HashMap<String, Permission>();
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private final Map<Boolean, Set<Permission>> defaultPerms = new LinkedHashMap<Boolean, Set<Permission>>();
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private final Map<String, Map<Permissible, Boolean>> permSubs = new HashMap<String, Map<Permissible, Boolean>>();
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private final Map<Boolean, Map<Permissible, Boolean>> defSubs = new HashMap<Boolean, Map<Permissible, Boolean>>();
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private boolean useTimings = false;
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public SimplePluginManager(Server instance, SimpleCommandMap commandMap) {
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server = instance;
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this.commandMap = commandMap;
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defaultPerms.put(true, new HashSet<Permission>());
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defaultPerms.put(false, new HashSet<Permission>());
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}
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/**
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* Registers the specified plugin loader
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*
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* @param loader Class name of the PluginLoader to register
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* @throws IllegalArgumentException Thrown when the given Class is not a valid PluginLoader
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*/
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public void registerInterface(Class<? extends PluginLoader> loader) throws IllegalArgumentException {
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PluginLoader instance;
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if (PluginLoader.class.isAssignableFrom(loader)) {
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Constructor<? extends PluginLoader> constructor;
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try {
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constructor = loader.getConstructor(Server.class);
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instance = constructor.newInstance(server);
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} catch (NoSuchMethodException ex) {
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String className = loader.getName();
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throw new IllegalArgumentException(String.format("Class %s does not have a public %s(Server) constructor", className, className), ex);
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} catch (Exception ex) {
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throw new IllegalArgumentException(String.format("Unexpected exception %s while attempting to construct a new instance of %s", ex.getClass().getName(), loader.getName()), ex);
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}
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} else {
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throw new IllegalArgumentException(String.format("Class %s does not implement interface PluginLoader", loader.getName()));
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}
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Pattern[] patterns = instance.getPluginFileFilters();
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synchronized (this) {
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for (Pattern pattern : patterns) {
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fileAssociations.put(pattern, instance);
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}
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}
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}
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/**
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* Loads the plugins contained within the specified directory
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*
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* @param directory Directory to check for plugins
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* @return A list of all plugins loaded
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*/
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@SuppressWarnings("unchecked")
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public Plugin[] loadPlugins(File directory) {
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Validate.notNull(directory, "Directory cannot be null");
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Validate.isTrue(directory.isDirectory(), "Directory must be a directory");
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List<Plugin> result = new ArrayList<Plugin>();
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Set<Pattern> filters = fileAssociations.keySet();
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if (!(server.getUpdateFolder().equals(""))) {
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updateDirectory = new File(directory, server.getUpdateFolder());
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}
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Map<String, File> plugins = new HashMap<String, File>();
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Set<String> loadedPlugins = new HashSet<String>();
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Map<String, Collection<String>> dependencies = new HashMap<String, Collection<String>>();
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Map<String, Collection<String>> softDependencies = new HashMap<String, Collection<String>>();
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// This is where it figures out all possible plugins
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for (File file : directory.listFiles()) {
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PluginLoader loader = null;
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for (Pattern filter : filters) {
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Matcher match = filter.matcher(file.getName());
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if (match.find()) {
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loader = fileAssociations.get(filter);
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}
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}
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if (loader == null) continue;
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PluginDescriptionFile description = null;
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try {
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description = loader.getPluginDescription(file);
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} catch (InvalidPluginException ex) {
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server.getLogger().log(Level.SEVERE, "Could not load '" + file.getPath() + "' in folder '" + directory.getPath() + "': " + ex.getMessage(), ex);
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continue;
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} catch (InvalidDescriptionException ex) {
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server.getLogger().log(Level.SEVERE, "Could not load '" + file.getPath() + "' in folder '" + directory.getPath() + "': " + ex.getMessage(), ex);
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continue;
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}
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plugins.put(description.getName(), file);
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Collection<? extends String> softDependencySet = (Collection<? extends String>) description.getSoftDepend();
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if (softDependencySet != null) {
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softDependencies.put(description.getName(), new LinkedList<String>(softDependencySet));
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}
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Collection<? extends String> dependencySet = (Collection<? extends String>) description.getDepend();
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if (dependencySet != null) {
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dependencies.put(description.getName(), new LinkedList<String>(dependencySet));
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}
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}
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while (!plugins.isEmpty()) {
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boolean missingDependency = true;
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Iterator<String> pluginIterator = plugins.keySet().iterator();
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while (pluginIterator.hasNext()) {
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String plugin = pluginIterator.next();
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if (dependencies.containsKey(plugin)) {
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Iterator<String> dependencyIterator = dependencies.get(plugin).iterator();
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while (dependencyIterator.hasNext()) {
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String dependency = dependencyIterator.next();
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// Dependency loaded
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if (loadedPlugins.contains(dependency)) {
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dependencyIterator.remove();
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// We have a dependency not found
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} else if (!plugins.containsKey(dependency)) {
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missingDependency = false;
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File file = plugins.get(plugin);
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pluginIterator.remove();
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softDependencies.remove(plugin);
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dependencies.remove(plugin);
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server.getLogger().log(
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Level.SEVERE,
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"Could not load '" + file.getPath() + "' in folder '" + directory.getPath() + "': ",
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new UnknownDependencyException(dependency));
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break;
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}
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}
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if (dependencies.containsKey(plugin) && dependencies.get(plugin).isEmpty()) {
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dependencies.remove(plugin);
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}
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}
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if (softDependencies.containsKey(plugin)) {
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Iterator<String> softDependencyIterator = softDependencies.get(plugin).iterator();
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while (softDependencyIterator.hasNext()) {
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String softDependency = softDependencyIterator.next();
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// Soft depend is no longer around
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if (!plugins.containsKey(softDependency)) {
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softDependencyIterator.remove();
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}
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}
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if (softDependencies.get(plugin).isEmpty()) {
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softDependencies.remove(plugin);
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}
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}
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if (!(dependencies.containsKey(plugin) || softDependencies.containsKey(plugin)) && plugins.containsKey(plugin)) {
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// We're clear to load, no more soft or hard dependencies left
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File file = plugins.get(plugin);
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pluginIterator.remove();
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missingDependency = false;
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try {
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result.add(loadPlugin(file));
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loadedPlugins.add(plugin);
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continue;
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} catch (InvalidPluginException ex) {
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server.getLogger().log(Level.SEVERE, "Could not load '" + file.getPath() + "' in folder '" + directory.getPath() + "': ", ex.getCause());
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} catch (InvalidDescriptionException ex) {
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server.getLogger().log(Level.SEVERE, "Could not load '" + file.getPath() + "' in folder '" + directory.getPath() + "': " + ex.getMessage(), ex);
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} catch (UnknownDependencyException ex) {
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server.getLogger().log(Level.SEVERE, "Could not load '" + file.getPath() + "' in folder '" + directory.getPath() + "': " + ex.getMessage(), ex);
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}
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}
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}
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if (missingDependency) {
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// We now iterate over plugins until something loads
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// This loop will ignore soft dependencies
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pluginIterator = plugins.keySet().iterator();
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while (pluginIterator.hasNext()) {
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String plugin = pluginIterator.next();
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if (!dependencies.containsKey(plugin)) {
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softDependencies.remove(plugin);
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dependencies.remove(plugin);
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missingDependency = false;
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File file = plugins.get(plugin);
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pluginIterator.remove();
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try {
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result.add(loadPlugin(file));
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loadedPlugins.add(plugin);
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break;
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} catch (InvalidPluginException ex) {
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server.getLogger().log(Level.SEVERE, "Could not load '" + file.getPath() + "' in folder '" + directory.getPath() + "': ", ex.getCause());
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} catch (InvalidDescriptionException ex) {
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server.getLogger().log(Level.SEVERE, "Could not load '" + file.getPath() + "' in folder '" + directory.getPath() + "': " + ex.getMessage(), ex);
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} catch (UnknownDependencyException ex) {
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server.getLogger().log(Level.SEVERE, "Could not load '" + file.getPath() + "' in folder '" + directory.getPath() + "': " + ex.getMessage(), ex);
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}
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}
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}
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// We have no plugins left without a depend
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if (missingDependency) {
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softDependencies.clear();
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dependencies.clear();
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Iterator<File> failedPluginIterator = plugins.values().iterator();
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while (failedPluginIterator.hasNext()) {
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File file = failedPluginIterator.next();
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failedPluginIterator.remove();
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server.getLogger().log(Level.SEVERE, "Could not load '" + file.getPath() + "' in folder '" + directory.getPath() + "': circular dependency detected");
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}
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}
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}
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}
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return result.toArray(new Plugin[result.size()]);
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}
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/**
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* Loads the plugin in the specified file
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* <p />
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* File must be valid according to the current enabled Plugin interfaces
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*
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* @param file File containing the plugin to load
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* @return The Plugin loaded, or null if it was invalid
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* @throws InvalidPluginException Thrown when the specified file is not a valid plugin
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* @throws InvalidDescriptionException Thrown when the specified file contains an invalid description
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* @throws UnknownDependencyException If a required dependency could not be found
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*/
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public synchronized Plugin loadPlugin(File file) throws InvalidPluginException, InvalidDescriptionException, UnknownDependencyException {
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Validate.notNull(file, "File cannot be null");
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checkUpdate(file);
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Set<Pattern> filters = fileAssociations.keySet();
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Plugin result = null;
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for (Pattern filter : filters) {
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String name = file.getName();
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Matcher match = filter.matcher(name);
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if (match.find()) {
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PluginLoader loader = fileAssociations.get(filter);
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result = loader.loadPlugin(file);
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}
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}
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if (result != null) {
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plugins.add(result);
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lookupNames.put(result.getDescription().getName(), result);
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}
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return result;
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}
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private void checkUpdate(File file) {
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if (updateDirectory == null || !updateDirectory.isDirectory()) {
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return;
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}
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File updateFile = new File(updateDirectory, file.getName());
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if (updateFile.isFile() && FileUtil.copy(updateFile, file)) {
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updateFile.delete();
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}
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}
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/**
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* Checks if the given plugin is loaded and returns it when applicable
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* <p />
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* Please note that the name of the plugin is case-sensitive
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*
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* @param name Name of the plugin to check
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* @return Plugin if it exists, otherwise null
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*/
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public synchronized Plugin getPlugin(String name) {
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return lookupNames.get(name);
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}
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public synchronized Plugin[] getPlugins() {
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return plugins.toArray(new Plugin[0]);
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}
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/**
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* Checks if the given plugin is enabled or not
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* <p />
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* Please note that the name of the plugin is case-sensitive.
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*
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* @param name Name of the plugin to check
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* @return true if the plugin is enabled, otherwise false
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*/
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public boolean isPluginEnabled(String name) {
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Plugin plugin = getPlugin(name);
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return isPluginEnabled(plugin);
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}
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/**
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* Checks if the given plugin is enabled or not
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*
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* @param plugin Plugin to check
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* @return true if the plugin is enabled, otherwise false
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*/
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public boolean isPluginEnabled(Plugin plugin) {
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if ((plugin != null) && (plugins.contains(plugin))) {
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return plugin.isEnabled();
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} else {
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return false;
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}
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}
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public void enablePlugin(final Plugin plugin) {
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if (!plugin.isEnabled()) {
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List<Command> pluginCommands = PluginCommandYamlParser.parse(plugin);
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if (!pluginCommands.isEmpty()) {
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commandMap.registerAll(plugin.getDescription().getName(), pluginCommands);
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}
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try {
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plugin.getPluginLoader().enablePlugin(plugin);
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} catch (Throwable ex) {
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server.getLogger().log(Level.SEVERE, "Error occurred (in the plugin loader) while enabling " + plugin.getDescription().getFullName() + " (Is it up to date?): " + ex.getMessage(), ex);
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}
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HandlerList.bakeAll();
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}
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}
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public void disablePlugins() {
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for (Plugin plugin : getPlugins()) {
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disablePlugin(plugin);
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}
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}
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public void disablePlugin(final Plugin plugin) {
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if (plugin.isEnabled()) {
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try {
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plugin.getPluginLoader().disablePlugin(plugin);
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} catch (Throwable ex) {
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server.getLogger().log(Level.SEVERE, "Error occurred (in the plugin loader) while disabling " + plugin.getDescription().getFullName() + " (Is it up to date?): " + ex.getMessage(), ex);
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}
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try {
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server.getScheduler().cancelTasks(plugin);
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} catch (Throwable ex) {
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server.getLogger().log(Level.SEVERE, "Error occurred (in the plugin loader) while cancelling tasks for " + plugin.getDescription().getFullName() + " (Is it up to date?): " + ex.getMessage(), ex);
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}
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try {
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server.getServicesManager().unregisterAll(plugin);
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} catch (Throwable ex) {
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server.getLogger().log(Level.SEVERE, "Error occurred (in the plugin loader) while unregistering services for " + plugin.getDescription().getFullName() + " (Is it up to date?): " + ex.getMessage(), ex);
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}
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try {
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HandlerList.unregisterAll(plugin);
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} catch (Throwable ex) {
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server.getLogger().log(Level.SEVERE, "Error occurred (in the plugin loader) while unregistering events for " + plugin.getDescription().getFullName() + " (Is it up to date?): " + ex.getMessage(), ex);
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}
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try {
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server.getMessenger().unregisterIncomingPluginChannel(plugin);
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server.getMessenger().unregisterOutgoingPluginChannel(plugin);
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} catch(Throwable ex) {
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server.getLogger().log(Level.SEVERE, "Error occurred (in the plugin loader) while unregistering plugin channels for " + plugin.getDescription().getFullName() + " (Is it up to date?): " + ex.getMessage(), ex);
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}
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}
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}
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public void clearPlugins() {
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synchronized (this) {
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disablePlugins();
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plugins.clear();
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lookupNames.clear();
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HandlerList.unregisterAll();
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fileAssociations.clear();
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permissions.clear();
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defaultPerms.get(true).clear();
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defaultPerms.get(false).clear();
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}
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}
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/**
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* Calls an event with the given details
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*
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* @param event Event details
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*/
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public synchronized void callEvent(Event event) {
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HandlerList handlers = event.getHandlers();
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handlers.bake();
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RegisteredListener[][] listeners = handlers.getRegisteredListeners();
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for (int i = 0; i < listeners.length; i++) {
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for (RegisteredListener registration : listeners[i]) {
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if (!registration.getPlugin().isEnabled()) {
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continue;
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}
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try {
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registration.callEvent(event);
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} catch (AuthorNagException ex) {
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Plugin plugin = registration.getPlugin();
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if (plugin.isNaggable()) {
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plugin.setNaggable(false);
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String author = "<NoAuthorGiven>";
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if (plugin.getDescription().getAuthors().size() > 0) {
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author = plugin.getDescription().getAuthors().get(0);
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}
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server.getLogger().log(Level.SEVERE, String.format(
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"Nag author: '%s' of '%s' about the following: %s",
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author,
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plugin.getDescription().getName(),
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ex.getMessage()
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));
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}
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} catch (Throwable ex) {
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server.getLogger().log(Level.SEVERE, "Could not pass event " + event.getEventName() + " to " + registration.getPlugin().getDescription().getName(), ex);
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}
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}
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}
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}
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public void registerEvents(Listener listener, Plugin plugin) {
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if (!plugin.isEnabled()) {
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throw new IllegalPluginAccessException("Plugin attempted to register " + listener + " while not enabled");
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}
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for (Map.Entry<Class<? extends Event>, Set<RegisteredListener>> entry : plugin.getPluginLoader().createRegisteredListeners(listener, plugin).entrySet()) {
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getEventListeners(getRegistrationClass(entry.getKey())).registerAll(entry.getValue());
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}
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}
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public void registerEvent(Class<? extends Event> event, Listener listener, EventPriority priority, EventExecutor executor, Plugin plugin) {
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registerEvent(event, listener, priority, executor, plugin, false);
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}
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/**
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* Registers the given event to the specified listener using a directly passed EventExecutor
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*
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* @param event Event class to register
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* @param listener PlayerListener to register
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* @param priority Priority of this event
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* @param executor EventExecutor to register
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* @param plugin Plugin to register
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* @param ignoreCancelled Do not call executor if event was already cancelled
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*/
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public void registerEvent(Class<? extends Event> event, Listener listener, EventPriority priority, EventExecutor executor, Plugin plugin, boolean ignoreCancelled) {
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Validate.notNull(listener, "Listener cannot be null");
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Validate.notNull(priority, "Priority cannot be null");
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Validate.notNull(executor, "Executor cannot be null");
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Validate.notNull(plugin, "Plugin cannot be null");
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if (!plugin.isEnabled()) {
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throw new IllegalPluginAccessException("Plugin attempted to register " + event + " while not enabled");
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|
}
|
|
|
|
if (useTimings) {
|
|
getEventListeners(event).register(new TimedRegisteredListener(listener, executor, priority, plugin, ignoreCancelled));
|
|
} else {
|
|
getEventListeners(event).register(new RegisteredListener(listener, executor, priority, plugin, ignoreCancelled));
|
|
}
|
|
}
|
|
|
|
private HandlerList getEventListeners(Class<? extends Event> type) {
|
|
try {
|
|
Method method = getRegistrationClass(type).getDeclaredMethod("getHandlerList");
|
|
method.setAccessible(true);
|
|
return (HandlerList) method.invoke(null);
|
|
} catch (Exception e) {
|
|
throw new IllegalPluginAccessException(e.toString());
|
|
}
|
|
}
|
|
|
|
private Class<? extends Event> getRegistrationClass(Class<? extends Event> clazz) {
|
|
try {
|
|
clazz.getDeclaredMethod("getHandlerList");
|
|
return clazz;
|
|
} catch (NoSuchMethodException e) {
|
|
if (clazz.getSuperclass() != null
|
|
&& !clazz.getSuperclass().equals(Event.class)
|
|
&& Event.class.isAssignableFrom(clazz.getSuperclass())) {
|
|
return getRegistrationClass(clazz.getSuperclass().asSubclass(Event.class));
|
|
} else {
|
|
throw new IllegalPluginAccessException("Unable to find handler list for event " + clazz.getName());
|
|
}
|
|
}
|
|
}
|
|
|
|
public Permission getPermission(String name) {
|
|
return permissions.get(name.toLowerCase());
|
|
}
|
|
|
|
public void addPermission(Permission perm) {
|
|
String name = perm.getName().toLowerCase();
|
|
|
|
if (permissions.containsKey(name)) {
|
|
throw new IllegalArgumentException("The permission " + name + " is already defined!");
|
|
}
|
|
|
|
permissions.put(name, perm);
|
|
calculatePermissionDefault(perm);
|
|
}
|
|
|
|
public Set<Permission> getDefaultPermissions(boolean op) {
|
|
return ImmutableSet.copyOf(defaultPerms.get(op));
|
|
}
|
|
|
|
public void removePermission(Permission perm) {
|
|
removePermission(perm.getName().toLowerCase());
|
|
}
|
|
|
|
public void removePermission(String name) {
|
|
permissions.remove(name);
|
|
}
|
|
|
|
public void recalculatePermissionDefaults(Permission perm) {
|
|
if (permissions.containsValue(perm)) {
|
|
defaultPerms.get(true).remove(perm);
|
|
defaultPerms.get(false).remove(perm);
|
|
|
|
calculatePermissionDefault(perm);
|
|
}
|
|
}
|
|
|
|
private void calculatePermissionDefault(Permission perm) {
|
|
if ((perm.getDefault() == PermissionDefault.OP) || (perm.getDefault() == PermissionDefault.TRUE)) {
|
|
defaultPerms.get(true).add(perm);
|
|
dirtyPermissibles(true);
|
|
}
|
|
if ((perm.getDefault() == PermissionDefault.NOT_OP) || (perm.getDefault() == PermissionDefault.TRUE)) {
|
|
defaultPerms.get(false).add(perm);
|
|
dirtyPermissibles(false);
|
|
}
|
|
}
|
|
|
|
private void dirtyPermissibles(boolean op) {
|
|
Set<Permissible> permissibles = getDefaultPermSubscriptions(op);
|
|
|
|
for (Permissible p : permissibles) {
|
|
p.recalculatePermissions();
|
|
}
|
|
}
|
|
|
|
public void subscribeToPermission(String permission, Permissible permissible) {
|
|
String name = permission.toLowerCase();
|
|
Map<Permissible, Boolean> map = permSubs.get(name);
|
|
|
|
if (map == null) {
|
|
map = new WeakHashMap<Permissible, Boolean>();
|
|
permSubs.put(name, map);
|
|
}
|
|
|
|
map.put(permissible, true);
|
|
}
|
|
|
|
public void unsubscribeFromPermission(String permission, Permissible permissible) {
|
|
String name = permission.toLowerCase();
|
|
Map<Permissible, Boolean> map = permSubs.get(name);
|
|
|
|
if (map != null) {
|
|
map.remove(permissible);
|
|
|
|
if (map.isEmpty()) {
|
|
permSubs.remove(name);
|
|
}
|
|
}
|
|
}
|
|
|
|
public Set<Permissible> getPermissionSubscriptions(String permission) {
|
|
String name = permission.toLowerCase();
|
|
Map<Permissible, Boolean> map = permSubs.get(name);
|
|
|
|
if (map == null) {
|
|
return ImmutableSet.of();
|
|
} else {
|
|
return ImmutableSet.copyOf(map.keySet());
|
|
}
|
|
}
|
|
|
|
public void subscribeToDefaultPerms(boolean op, Permissible permissible) {
|
|
Map<Permissible, Boolean> map = defSubs.get(op);
|
|
|
|
if (map == null) {
|
|
map = new WeakHashMap<Permissible, Boolean>();
|
|
defSubs.put(op, map);
|
|
}
|
|
|
|
map.put(permissible, true);
|
|
}
|
|
|
|
public void unsubscribeFromDefaultPerms(boolean op, Permissible permissible) {
|
|
Map<Permissible, Boolean> map = defSubs.get(op);
|
|
|
|
if (map != null) {
|
|
map.remove(permissible);
|
|
|
|
if (map.isEmpty()) {
|
|
defSubs.remove(op);
|
|
}
|
|
}
|
|
}
|
|
|
|
public Set<Permissible> getDefaultPermSubscriptions(boolean op) {
|
|
Map<Permissible, Boolean> map = defSubs.get(op);
|
|
|
|
if (map == null) {
|
|
return ImmutableSet.of();
|
|
} else {
|
|
return ImmutableSet.copyOf(map.keySet());
|
|
}
|
|
}
|
|
|
|
public Set<Permission> getPermissions() {
|
|
return new HashSet<Permission>(permissions.values());
|
|
}
|
|
|
|
public boolean useTimings() {
|
|
return useTimings;
|
|
}
|
|
|
|
/**
|
|
* Sets whether or not per event timing code should be used
|
|
*
|
|
* @param use True if per event timing code should be used
|
|
*/
|
|
public void useTimings(boolean use) {
|
|
useTimings = use;
|
|
}
|
|
}
|