NOISSUE reorganize and document libraries

libraries/launcher/org/multimc/EntryPoint.java

@@ -0,0 +1,178 @@
+package org.multimc;/*
+ * Copyright 2012-2014 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.legacy.LegacyLauncher;
+import org.multimc.onesix.OneSixLauncher;
+import org.simplericity.macify.eawt.Application;
+import org.simplericity.macify.eawt.DefaultApplication;
+
+import javax.imageio.ImageIO;
+import java.awt.image.BufferedImage;
+import java.io.*;
+import java.nio.charset.Charset;
+
+public class EntryPoint
+{
+	private enum Action
+	{
+		Proceed,
+		Launch,
+		Abort
+	}
+
+	public static void main(String[] args)
+	{
+		// Set the OSX application icon first, if we are on OSX.
+		Application application = new DefaultApplication();
+		if(application.isMac())
+		{
+			try
+			{
+				BufferedImage image = ImageIO.read(new File("icon.png"));
+				application.setApplicationIconImage(image);
+			}
+			catch (IOException e)
+			{
+				e.printStackTrace();
+			}
+		}
+
+		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("legacy"))
+			{
+				m_launcher = new LegacyLauncher();
+				Utils.log("Using legacy launcher.");
+				Utils.log();
+				return Action.Proceed;
+			}
+			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;
+}