/**
* Given a class file (which must be of our Command interface), register that Command with Bukkit.
*
* @param clazz
*/
private void registerDefaultCommand(Class<? extends Command> clazz) {
try {
Debug.getInstance().devDebug("registering command class ", clazz);
Command cmd = (Command) clazz.newInstance();
String cmdName = cmd.getCommandName();
// do nothing if the command is disabled
if (commandConfig.isDisabledCommand(cmdName)) {
log.debug(
"registerDefaultCommand() skipping ", cmdName, " because it is flagged as disabled");
return;
}
register(cmd);
} catch (Exception e) {
log.severe(e, "error trying to load command class " + clazz);
}
}
/**
* Given a command name, look for and register that command from the admin-configured command
* definitions.
*
* @param cmd
* @param classes
*/
private void registerConfigCommand(String cmd) {
log.devDebug("processing config defined command ", cmd);
Map<String, Object> cmdParams = commandConfig.getCommandParameters(cmd);
Class<? extends Command> cmdClass = null;
String className = null;
Object clazz = cmdParams.get("class");
// if no class given, just assume the name of the commmand
if (clazz == null) clazz = cmd;
if (clazz != null && clazz instanceof String) {
className = (String) clazz;
// if class given, but no package given, assume default package
if (className.indexOf('.') == -1) {
String firstChar = className.substring(0, 1);
String theRest = className.substring(1);
className = firstChar.toUpperCase() + theRest;
cmdClass = findCommandClass(className);
}
}
// if we have no commandClass yet, but we do have a className, then
// try to find that className.
if (cmdClass == null && className != null) {
cmdClass = findCommandClass(className);
}
if (cmdClass == null) {
log.warn("No class defined or found for command ", cmd);
return;
}
try {
Command command = (Command) cmdClass.newInstance();
command.setCommandName(cmd.toLowerCase()); // default to name of instance key
register(command, cmdParams);
} catch (ClassCastException e) {
log.warn("class " + cmdClass + " does not implement Command interface");
} catch (Exception e) {
log.warn(e, "error loading class " + cmdClass);
}
}
/**
* Register all known HSP commands. This includes those defined by the admin in the config file as
* well as all commands found automatically on the command path.
*/
public void registerAllCommands() {
// loop through all config-defined command and load them up
Set<String> commands = commandConfig.getDefinedCommands();
for (String cmd : commands) {
registerConfigCommand(cmd);
}
Set<Class<? extends Command>> commandClasses = getCommandClasses();
// now loop through all normal commands in the class path
for (Class<? extends Command> clazz : commandClasses) {
log.devDebug("checking found class ", clazz);
registerDefaultCommand(clazz);
}
}
/**
* Return all classes which extend our Command interface.
*
* @return
*/
private Set<Class<? extends Command>> getCommandClasses() {
if (commandClasses != null) return commandClasses;
commandClasses = reflections.getSubTypesOf(Command.class);
Set<Class<? extends BaseCommand>> baseCommandClasses =
reflections.getSubTypesOf(BaseCommand.class);
for (Class<? extends BaseCommand> bc : baseCommandClasses) {
commandClasses.add((Class<? extends Command>) bc);
}
if (commandClasses == null || commandClasses.size() == 0) {
log.severe("No command classes found, HSP will not be able to register commands!");
}
return commandClasses;
}
/**
* Given a commandName, find the default command which matches.
*
* @param cmdName
* @return
*/
private Class<? extends Command> findDefaultCommand(String cmdName) {
Set<Class<? extends Command>> classes = getCommandClasses();
for (Class<? extends Command> clazz : classes) {
try {
Command cmd = (Command) clazz.newInstance();
if (cmd.getCommandName().equals(cmdName)) return clazz;
String[] aliases = cmd.getCommandAliases();
if (aliases != null && aliases.length > 0) {
for (String alias : aliases) {
if (alias.equals(cmdName)) return clazz;
}
}
} catch (Exception e) {
log.severe(e, "Caught exception in findDefaultCommand for command " + cmdName);
}
}
return null;
}
@SuppressWarnings("unchecked")
public void register(Command command, Map<String, Object> cmdParams) {
String cmdName = command.getCommandName();
log.devDebug("register() command=", command, ",cmdParams=", cmdParams);
command.setPlugin(plugin);
command.setCommandParameters(cmdParams);
if (cmdParams.containsKey("name")) cmdName = (String) cmdParams.get("name");
// we never load the same command twice
if (loadedCommands.contains(cmdName)) return;
CraftServer cs = (CraftServer) Bukkit.getServer();
SimpleCommandMap commandMap = cs.getCommandMap();
try {
Constructor<PluginCommand> constructor =
PluginCommand.class.getDeclaredConstructor(String.class, Plugin.class);
constructor.setAccessible(true);
// construct a new PluginCommand object
PluginCommand pc = constructor.newInstance(cmdName, plugin);
pc.setExecutor(command);
pc.setLabel(cmdName);
if (command.getUsage() != null) pc.setUsage(command.getUsage());
// don't set Permission node, not all permission plugins behave
// with superperms command permissions nicely.
// pc.setPermission(command.getCommandPermissionNode());
// check for aliases defined in the configuration
Object o = cmdParams.get("aliases");
if (o != null) {
List<String> aliases = null;
if (o instanceof List) {
aliases = (List<String>) o;
} else if (o instanceof String) {
aliases = new ArrayList<String>(2);
aliases.add((String) o);
} else log.warn("invalid aliases defined for command ", cmdName, ": ", o);
if (aliases == null) aliases = new ArrayList<String>(1);
aliases.add("hsp" + command.getCommandName()); // all commands have "hsp" prefix alias
pc.setAliases(aliases);
}
// otherwise set whatever the command has defined
else {
List<String> aliases = new ArrayList<String>(5);
String[] strAliases = command.getCommandAliases();
if (strAliases != null) {
for (String alias : strAliases) {
aliases.add(alias);
}
}
aliases.add("hsp" + command.getCommandName()); // all commands have "hsp" prefix alias
pc.setAliases(aliases);
}
// register it
commandMap.register("hsp", pc);
loadedCommands.add(cmdName);
Debug.getInstance().devDebug("register() command ", command, " registered");
} catch (Exception e) {
e.printStackTrace();
}
}
