66 lines
1.8 KiB
Java
66 lines
1.8 KiB
Java
package de.mrbesen.telegram.commands;
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import de.mrbesen.telegram.TelegramAPI;
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import de.mrbesen.telegram.objects.TMessage;
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import de.mrbesen.telegram.objects.TUser;
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import java.util.ArrayList;
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public class CommandManager {
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private final static String CMDPATTERN = "^[\\w-]+$";
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private final TelegramAPI api;
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private ArrayList<ICommandHandler> handlerlist = new ArrayList<>();//list of all registered CommandHandler
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public CommandManager(TelegramAPI a) {
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api = a;
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}
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public void onCommand(String line, TUser sender, TMessage json) {//called by the api (/-prefix already removed)
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line = line.trim();
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String[] split = line.split(" ",2);
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String cmd = split[0].toLowerCase();
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if(cmd.contains("@")) {
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cmd = cmd.substring(0, cmd.indexOf('@'));
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}
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boolean result = false;
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if(cmd.matches(CMDPATTERN)) {
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String[] args = new String[0];
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if(split.length == 2) {
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args = split[1].split(" ");
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}
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//call
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for(ICommandHandler cmdhand : handlerlist) {
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try {
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if(cmdhand instanceof JSONCommandHandler) {
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result = ((JSONCommandHandler) cmdhand).onCommand(sender, cmd, args, json);
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} else if( cmdhand instanceof CommandHandler){
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result = ((CommandHandler) cmdhand).onCommand(sender, cmd, args);
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}
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if(result)
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break;
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} catch(Throwable t) {
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System.err.println("Error, while performing Command. ");//TODO do loggin here
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t.printStackTrace();
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}
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}
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}
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//do smth. with result
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if(!result && json.getChatID() < 0) {
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TUser.sendMessage(api, json.getChatID(), api.getHelpMessage(), null, 0, true, null);
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}
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}
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public void registerCommand(ICommandHandler handler) {
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registerCommand(null, handler);
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}
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public void registerCommand(String cmd, ICommandHandler handler) {
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if(handler == null) {
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throw new NullPointerException("handler is not allowed to be null");
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}
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handlerlist.add(handler);
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}
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}
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