package org.multimc;/* * Copyright 2012-2017 MultiMC Contributors * * Licensed 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. */ import org.multimc.onesix.OneSixLauncher; import java.io.*; import java.nio.charset.Charset; public class EntryPoint { private enum Action { Proceed, Launch, Abort } public static void main(String[] args) { EntryPoint listener = new EntryPoint(); int retCode = listener.listen(); if (retCode != 0) { System.out.println("Exiting with " + retCode); System.exit(retCode); } } private Action parseLine(String inData) throws ParseException { String[] pair = inData.split(" ", 2); if(pair.length == 1) { String command = pair[0]; if (pair[0].equals("launch")) return Action.Launch; else if (pair[0].equals("abort")) return Action.Abort; else throw new ParseException(); } if(pair.length != 2) throw new ParseException(); String command = pair[0]; String param = pair[1]; if(command.equals("launcher")) { if(param.equals("onesix")) { m_launcher = new OneSixLauncher(); Utils.log("Using onesix launcher."); Utils.log(); return Action.Proceed; } else throw new ParseException(); } m_params.add(command, param); //System.out.println(command + " : " + param); return Action.Proceed; } public int listen() { BufferedReader buffer; try { buffer = new BufferedReader(new InputStreamReader(System.in, "UTF-8")); } catch (UnsupportedEncodingException e) { System.err.println("For some reason, your java does not support UTF-8. Consider living in the current century."); e.printStackTrace(); return 1; } boolean isListening = true; boolean isAborted = false; // Main loop while (isListening) { String inData; try { // Read from the pipe one line at a time inData = buffer.readLine(); if (inData != null) { Action a = parseLine(inData); if(a == Action.Abort) { isListening = false; isAborted = true; } if(a == Action.Launch) { isListening = false; } } else { isListening = false; isAborted = true; } } catch (IOException e) { System.err.println("Launcher ABORT due to IO exception:"); e.printStackTrace(); return 1; } catch (ParseException e) { System.err.println("Launcher ABORT due to PARSE exception:"); e.printStackTrace(); return 1; } } if(isAborted) { System.err.println("Launch aborted by MultiMC."); return 1; } if(m_launcher != null) { return m_launcher.launch(m_params); } System.err.println("No valid launcher implementation specified."); return 1; } private ParamBucket m_params = new ParamBucket(); private org.multimc.Launcher m_launcher; }