/jEdit/tags/jedit-4-3-pre5/installer/Install.java

  1/*
  2 * Install.java - Main class of the installer
  3 *
  4 * Originally written by Slava Pestov for the jEdit installer project. This work
  5 * has been placed into the public domain. You may use this work in any way and
  6 * for any purpose you wish.
  7 *
  8 * THIS SOFTWARE IS PROVIDED AS-IS WITHOUT WARRANTY OF ANY KIND, NOT EVEN THE
  9 * IMPLIED WARRANTY OF MERCHANTABILITY. THE AUTHOR OF THIS SOFTWARE, ASSUMES
 10 * _NO_ RESPONSIBILITY FOR ANY CONSEQUENCE RESULTING FROM THE USE, MODIFICATION,
 11 * OR REDISTRIBUTION OF THIS SOFTWARE.
 12 */
 13
 14package installer;
 15
 16import javax.swing.plaf.metal.*;
 17import javax.swing.*;
 18import java.io.*;
 19import java.util.Properties;
 20
 21public class Install
 22{
 23	public static void main(String[] args)
 24	{
 25		String javaVersion = System.getProperty("java.version");
 26		if(javaVersion.compareTo("1.3") < 0)
 27		{
 28			System.err.println("You are running Java version "
 29				+ javaVersion + ".");
 30			System.err.println("This installer requires Java 1.3 or later.");
 31			System.exit(1);
 32		}
 33
 34		if(args.length == 0)
 35			new SwingInstall();
 36		else if(args.length == 1 && args[0].equals("text"))
 37			new ConsoleInstall();
 38		else if(args.length >= 2 && args[0].equals("auto"))
 39			new NonInteractiveInstall(args);
 40		else
 41		{
 42			System.err.println("Usage:");
 43			System.err.println("java -jar <installer JAR>");
 44			System.err.println("java -jar <installer JAR> text");
 45			System.err.println("java -jar <installer JAR> auto"
 46				+ " <install dir> [unix-script=<dir>] [unix-man=<dir>]");
 47			System.err.println("text parameter starts installer in text-only mode.");
 48			System.err.println("auto parameter starts installer in non-interactive mode.");
 49		}
 50	}
 51
 52	public Install()
 53	{
 54		props = new Properties();
 55		try
 56		{
 57			InputStream in = getClass().getResourceAsStream("/installer/install.props");
 58			props.load(in);
 59			in.close();
 60		}
 61		catch(IOException io)
 62		{
 63			System.err.println("Error loading 'install.props':");
 64			io.printStackTrace();
 65		}
 66
 67		buf = new byte[32768];
 68	}
 69
 70	public String getProperty(String name)
 71	{
 72		return props.getProperty(name);
 73	}
 74
 75	public int getIntegerProperty(String name)
 76	{
 77		try
 78		{
 79			return Integer.parseInt(props.getProperty(name));
 80		}
 81		catch(Exception e)
 82		{
 83			return -1;
 84		}
 85	}
 86
 87	public void copy(InputStream in, String outfile, Progress progress)
 88		throws IOException
 89	{
 90		File outFile = new File(outfile);
 91
 92		OperatingSystem.getOperatingSystem().mkdirs(outFile.getParent());
 93
 94		BufferedOutputStream out = new BufferedOutputStream(
 95			new FileOutputStream(outFile));
 96
 97		int count;
 98
 99		for(;;)
100		{
101			count = in.read(buf,0,Math.min(in.available(),buf.length));
102			if(count == -1 || count == 0)
103				break;
104
105			out.write(buf,0,count);
106			if(progress != null)
107				progress.advance(count);
108		}
109
110		//in.close();
111		out.close();
112	}
113
114	// private members
115	private Properties props;
116	private byte[] buf;
117}