org.rzo.yajsw.updater.InstallAction Maven / Gradle / Ivy

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YAJSW is a java centric implementation of the java service wrapper by tanuki (JSW). It aims at being mostly configuration compliant with the original. It should therefore be easy to switch from JSW to YAJSW.

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package org.rzo.yajsw.updater;

import java.io.File;
import java.util.ArrayList;
import java.util.List;

import org.rzo.yajsw.boot.WrapperLoader;
import org.rzo.yajsw.config.YajswConfigurationImpl;
import org.rzo.yajsw.os.JavaHome;
import org.rzo.yajsw.os.OperatingSystem;
import org.rzo.yajsw.os.Process;
import org.rzo.yajsw.util.Utils;


public class InstallAction
{


		static YajswConfigurationImpl _currentConfig;
		static String _newConfig;
		static String _wrapperHome;
		static Process _p;
		
		public static void setWrapperHome(String wrapperHome)
		{
			_wrapperHome = wrapperHome;
		}

		public static void setCurrentConfig(YajswConfigurationImpl config)
		{
			_currentConfig = config;
		}
		
		public static void setNewConfig(String newConfig)
		{
			_newConfig = newConfig;
		}

		public static void run()
		{
			try
			{
			if (_p != null)
				return;
			if (_currentConfig == null || _newConfig == null || _wrapperHome == null)
				return;
			_p = OperatingSystem.instance().processManagerInstance().createProcess();
			_p.setCommand(getInstallerCommand());
			// daemonize !
			_p.setPipeStreams(false, false);
			_p.setVisible(false);
			_p.setDebug(true);
			// set working dir to wrapper home, so we know where we are running
			// not required, but good
			_p.setWorkingDir(WrapperLoader.getWrapperHome());
			_p.start();
			}
			catch (Throwable ex)
			{
				ex.printStackTrace();
			}
		}

		private static String[] getInstallerCommand()
		{
			List result = new ArrayList();
			// set java
			JavaHome javaHome = OperatingSystem.instance().getJavaHome(_currentConfig);
			String java = javaHome.findJava(_currentConfig.getString("wrapper.java.command"), _currentConfig.getString("wrapper.java.customProcName"));
			result.add(java);
			// set classpath
			result.add("-classpath");
			result.add(getWrapperJar()+File.pathSeparator+getWrapperAppJar());
			// forward system props to sub process
			for (Object obj : System.getProperties().keySet())
			{
				String key = (String)obj;
				result.add(Utils.getDOption(key, System.getProperty(key)));
			}
			// set main class
			result.add(InstallerBooter.class.getName());
			// set main class args - current.conf new.conf
			result.add(new File(_currentConfig.getCachedPath(false)).getAbsolutePath());
			result.add(_newConfig);
			String[] arrResult = new String[result.size()];
			for (int i=0; i< arrResult.length; i++)
				arrResult[i] = result.get(i);
			return arrResult;
		}
		
		private static String getWrapperJar()
		{
			return _wrapperHome+File.separator+"wrapper.jar";
		}

		private static String getWrapperAppJar()
		{
			return _wrapperHome+File.separator+"wrapperApp.jar";
		}

		// test
		public static void main(String[] args)
		{
			UpdateAction.setUpdateConfig("z:/dev/yajsw/update.conf");
			System.setProperty("wrapper.config", "z:/dev/yajsw/conf/wrapper.helloworld.conf");
			YajswConfigurationImpl conf = new YajswConfigurationImpl();
			UpdateAction.setCurrentConfig(conf);
			System.out.println("service "+conf.getString("wrapper.ntservice.name", "?"));
			UpdateAction.run();
		}


	
}