Here is what I came up with. It works but I was wondering if there is something more elegant. Thank you!
Misha
/* Copyright (c) 2010 Misha Koshelev. All Rights Reserved.
*
* TODO:
* - Add Linux support
*/
package com.mksoft.common;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileWriter;
import java.io.InputStreamReader;
import java.io.IOException;
import java.io.PrintWriter;
import java.net.URI;
import java.net.URISyntaxException;
/**
* Run specified class within this JAR file on system startup.
*
* @author Misha Koshelev
*/
public class RunOnSystemStartup {
/*
* Constants
*/
protected final static String osName=System.getProperty("os.name");
protected final static String fileSeparator=System.getProperty("file.separator");
protected final static String javaHome=System.getProperty("java.home");
protected final static String userHome=System.getProperty("user.home");
/*
* Debugging
*/
protected static boolean debugOutput=false;
protected static void debug(String message) {
if (debugOutput) {
System.err.println(message);
System.err.flush();
}
}
/*
* Helpers
*/
protected static File getJarFile() throws URISyntaxException {
return new File(RunOnSystemStartup.class.getProtectionDomain().getCodeSource().getLocation().toURI());
}
protected static File getStartupFile() throws Exception {
debug("RunOnSystemStartup.getStartupFile: osName=\""+osName+"\"");
if (osName.startsWith("Windows")) {
Process process=Runtime.getRuntime().exec("reg query \"HKCU\\Software\\Microsoft\\Windows\\CurrentVersion\\Explorer\\Shell Folders\" /v Startup");
BufferedReader in=new BufferedReader(new InputStreamReader(process.getInputStream()));
String result="",line;
while ((line=in.readLine())!=null) {
result+=line;
}
in.close();
result=result.replaceAll(".*REG_SZ[ ]*","");
debug("RunOnSystemStartup.getStartupFile: Startup Directory=\""+result+"\"");
return new File(result+fileSeparator+getJarFile().getName().replaceFirst(".jar",".bat"));
} else if (osName.startsWith("Mac OS")) {
return new File(userHome+"/Library/LaunchAgents/com.mksoft."+getJarFile().getName().replaceFirst(".jar",".plist"));
} else {
throw new Exception("Unknown Operating System Name \""+osName+"\"");
}
}
/*
* Methods
*/
/**
* Returns whether this JAR file is installed to run on system startup.
*/
public static boolean isInstalled() throws Exception {
return getStartupFile().exists();
}
/**
* Install the specified class from the current JAR file to run on system startup.
*
* @param className Name of class within the current JAR file to run on system startup.
* @param windowTitle Title to display in window title bar, if applicable.
*/
public static void install(String className,String windowTitle) throws Exception {
File startupFile=getStartupFile();
PrintWriter out=new PrintWriter(new FileWriter(startupFile));
if (osName.startsWith("Windows")) {
out.println("@echo off");
out.println("start \""+windowTitle+"\" \""+javaHome+fileSeparator+"bin"+fileSeparator+"java.exe\" -cp "+getJarFile()+" "+className);
} else if (osName.startsWith("Mac OS")) {
out.println("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
out.println("<!DOCTYPE plist PUBLIC \"-//Apple Computer//DTD PLIST 1.0//EN\" \"http://www.apple.com/DTDs/PropertyList-1.0.dtd\">");
out.println("<plist version=\"1.0\">");
out.println("<dict>");
out.println(" <key>Label</key>");
out.println(" <string>com.mksoft."+getJarFile().getName().replaceFirst(".jar","")+"</string>");
out.println(" <key>ProgramArguments</key>");
out.println(" <array>");
out.println(" <string>"+javaHome+fileSeparator+"bin"+fileSeparator+"java</string>");
out.println(" <string>-cp</string>");
out.println(" <string>"+getJarFile()+"</string>");
out.println(" <string>"+className+"</string>");
out.println(" </array>");
out.println(" <key>RunAtLoad</key>");
out.println(" <true/>");
out.println("</dict>");
out.println("</plist>");
} else {
throw new Exception("Unknown Operating System Name \""+osName+"\"");
}
out.close();
}
/**
* Uninstall this JAR file from the system startup process.
*/
public static void uninstall() throws Exception {
File startupFile=getStartupFile();
if (startupFile.exists()) {
startupFile.delete();
}
}
}
Is it a service or a user application? If a service take a look into Java Service Wrapper.
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