main.java

derby database source code.good for you.

		  tryNetClasspath(successes, failures);
		  tryClientClasspath(successes, failures);
		  tryUtilsClasspath(successes, failures);
		  localPW.println(successes.toString());
		  if (!failures.toString().equals(crLf() + Main.getTextMessage("SIF08.E") + crLf())) {
			  localPW.println(failures.toString());
		  }
		  else {

			  localPW.println(Main.getTextMessage("SIF08.F"));
		  }
		  localPW.flush();
	  }

	private static void trySomeClasspaths(String[] args, java.io.PrintWriter localPW) throws Throwable {

		boolean seenArg = false;
		StringBuffer successes = new StringBuffer(Main.getTextMessage("SIF08.D")+ crLf());
		StringBuffer failures = new StringBuffer(crLf() + Main.getTextMessage("SIF08.E") + crLf());

		if (argumentsContain(args, EMBEDDED))
		{

			tryCoreClasspath(successes, failures);
			seenArg =true;

		}
		if (argumentsContain(args,NET)) {
		  tryNetClasspath(successes, failures);
			seenArg =true;

		}
		if (argumentsContain(args,CLIENT)) {
		  tryClientClasspath(successes, failures);
			seenArg =true;

		}

		if (argumentsContain(args,TOOLS) || argumentsContain(args,"utils")) {
		  tryUtilsClasspath(successes, failures);
			seenArg =true;

		}


		String userclass = argumentMatches(args, ".class");
		if (!userclass.equals("")) {
			tryMyClasspath(argumentMatches(args, ".class"), Main.getTextMessage("SIF08.H", userclass), successes, failures);
			seenArg =true;
		}

		if (seenArg)
		{

			localPW.println(successes.toString());
			if (!failures.toString().equals(crLf() + Main.getTextMessage("SIF08.E") + crLf())) {
				localPW.println(failures.toString());
			}
			else {

				localPW.println(Main.getTextMessage("SIF08.F"));
			}
		}
		else
		{
			localPW.println(Main.getTextMessage("SIF08.A", USAGESTRINGPARTA, USAGESTRINGPARTB));
		}
		localPW.flush();

	}

	private static void tryCoreClasspath(StringBuffer successes, StringBuffer failures) {
		tryMyClasspath("org.apache.derby.database.Database", Main.getTextMessage("SIF08.J","derby.jar" ), successes, failures);
	}
	private static void tryNetClasspath(StringBuffer successes, StringBuffer failures) {
		tryMyClasspath("org.apache.derby.database.Database", Main.getTextMessage("SIF08.J","derby.jar" ), successes, failures);
		tryMyClasspath("org.apache.derby.drda.NetworkServerControl", Main.getTextMessage("SIF08.I", "derbynet.jar"), successes, failures);
	}
	private static void tryClientClasspath(StringBuffer successes, StringBuffer failures) {
		tryMyClasspath("com.ibm.db2.jcc.DB2Driver", Main.getTextMessage("SIF08.L", "db2jcc.jar"), successes, failures);
		tryMyClasspath("org.apache.derby.jdbc.ClientDriver", Main.getTextMessage("SIF08.L", "derbyclient.jar"), successes, failures);
	}

	private static void tryUtilsClasspath(StringBuffer successes, StringBuffer failures) {
		tryMyClasspath("org.apache.derby.tools.ij", Main.getTextMessage("SIF08.Q", "derbytools.jar"), successes, failures);
	}

	private static void tryMyClasspath(String cn, String library, StringBuffer successes, StringBuffer failures) {

		try {
			Class.forName(cn);
			successes.append(found(cn, library));
		}

		catch (Throwable t) {

			failures.append(notFound(cn, library));

		}


	}

	private static void tryAsResource(String cn, String library, StringBuffer successes, StringBuffer failures) {

		try {
			java.io.InputStream in = cn.getClass().getResourceAsStream(cn);
			in.close();
			successes.append(found(cn, library));
		}

		catch (Throwable t) {
			failures.append(notFound(cn, library));

		}

	}

	private static String found(String cn, String library) {
		StringBuffer temp = new StringBuffer(crLf());
		temp.append("   " + library);
		temp.append(crLf());
		temp.append(crLf());
		return temp.toString();
	}
	private static String notFound(String cn, String library) {

		StringBuffer temp = new StringBuffer(crLf());
		temp.append("   " + library);
		temp.append(crLf());
		temp.append("    " + Main.getTextMessage("SIF08.U", cn));
		temp.append(crLf());
		temp.append(crLf());
		return temp.toString();
	}

	private static String crLf() {
		return System.getProperty("line.separator");
	}

	private static String lookForMainArg(String[] args, java.io.PrintWriter localPW)
	{
		int length=args.length;
		String[] legalargs = new String[1];
		legalargs[0] = EMBEDDED;

		int argsfound = 0;
		String whichargument="";

		for (int i = 0; i < length; i++) {

			for (int j=0; j < legalargs.length; j++) {
				if (args[i].toUpperCase(java.util.Locale.ENGLISH).equals(legalargs[j].toUpperCase(java.util.Locale.ENGLISH))) {
					argsfound++;
					whichargument=legalargs[j];
				}
			}
		}
		if (argsfound > 1 || argsfound < 1) {
            localPW.println(Main.getTextMessage("SIF08.A", USAGESTRINGPARTA, USAGESTRINGPARTB));
			return "";
		}
		return whichargument;
	}

	private static boolean argumentsContain(String[] args, String s) {
		for (int i = 0; i < args.length; i++) {
			if (args[i].equalsIgnoreCase(s))
				return true;
		}
		return false;

	}

	private static String argumentMatches(String[] args, String ss) {
	    String userclass = "";
		int length = args.length;
		for (int i = 0; i < length; i++) {
			if (args[i].endsWith(ss)) {
				userclass = args[i].substring(0,args[i].length()-6) ;

			}

		}
		return userclass;
	}

	/*
	** Code related to loading info fromjar files.
	*/

    private static final String infoNames[] = {

                                    "org/apache/derby/info/" +
                                    org.apache.derby.iapi.services.info.ProductGenusNames.DBMS +
                                    ".properties",


                                    "org/apache/derby/info/" +
                                    org.apache.derby.iapi.services.info.ProductGenusNames.TOOLS +
                                    ".properties",

                                    "org/apache/derby/info/" +
                                    org.apache.derby.iapi.services.info.ProductGenusNames.NET +
                                    ".properties",

                                   "org/apache/derby/info/" +
                                    org.apache.derby.iapi.services.info.ProductGenusNames.DNC +
                                    ".properties"
                                };

    public static ZipInfoProperties[] getAllInfo(String classpath)
    {
        try
        {
			if (classpath != null) {
				String cp [] = parseClasspath(classpath);
				Vector v = new Vector();
				for (int i = 0; i < cp.length; i++)
				{
					ZipInfoProperties zip = checkForInfo(cp[i]);
					if (zip != null)
					{
						v.addElement(zip);
					}
				}
				if (v.size() > 0)
				{
					ZipInfoProperties zips[] = new ZipInfoProperties[v.size()];
					v.copyInto(zips);
					return zips;
				}
			}
            return loadZipFromResource();

        }
        catch (SecurityException se)
        {
            ZipInfoProperties zip[] = new ZipInfoProperties[1];
            zip[0] = new ZipInfoProperties(null);
            zip[0].setLocation (Main.getTextMessage ("SIF03.C"));
            return zip;
        }
    }

    /**
        This method returns exactly one ZipInfoProperty in the array.
        If it is able to load the sysinfo file as a resource, it returns
        the ZipInfoProperty associated with that. Otherwise, the ZipInfoProperty
        will be empty.
     */
    private static ZipInfoProperties [] loadZipFromResource()
    {
		java.util.ArrayList al = new java.util.ArrayList();

        for (int i = 0; i < infoNames.length; i++)
        {
			String resource = "/".concat(infoNames[i]);

            InputStream is = new Main().getClass().getResourceAsStream(resource);
			if (is == null)
				continue;

			ZipInfoProperties ze = new ZipInfoProperties(ProductVersionHolder.getProductVersionHolderFromMyEnv(is));
			ze.setLocation(resource);

			al.add(ze);
        }

        if (al.size() == 0)
        {
            return null;
        }

        ZipInfoProperties[] zip = new ZipInfoProperties[al.size()];

		al.toArray(zip);

        return zip;
    }

    private static String [] parseClasspath(String cp)
    {
        StringTokenizer st = new StringTokenizer(cp, File.pathSeparator);
        int count = st.countTokens();
        if (count == 0)
        {
            return null;
        }

        String vals[] = new String[count];
        for (int i =0; i < count; i++)
        {
            vals[i] = st.nextToken();
        }
        return vals;
    }

    private static ZipInfoProperties checkForInfo(String cpEntry)
    {
        File f = new File(cpEntry);
        if ( ! f.exists())
        {
            return null;
        }

        if (f.isDirectory())
        {
            ZipInfoProperties zip = checkDirectory(cpEntry);
            return zip;
        }

        if (f.isFile())
        {
            ZipInfoProperties zip = checkFile(cpEntry);
            return zip;
        }
        return null;


    }

    private static ZipInfoProperties checkDirectory(String dirname)
    {
        boolean foundOne = false;
        File f = null;
        for (int i = 0; i < infoNames.length; i++)
        {
            String localSysinfo = infoNames[i].replace('/', File.separatorChar);
            f = new File(dirname, localSysinfo);
            if (f.exists())
            {
                foundOne = true;
                break;
            }
        }

        if (!foundOne || (f == null))
        {
            return null;
        }

        try
        {
            InputStream bis = new FileInputStream(f);

            ZipInfoProperties zip = new ZipInfoProperties(ProductVersionHolder.getProductVersionHolderFromMyEnv(bis));
            zip.setLocation(new File(dirname).getCanonicalPath().replace('/', File.separatorChar));
            return zip;
        }
        catch (IOException ioe)
        {
            return null;
        }

    }

    private static ZipInfoProperties checkFile(String filename)
    {
        // try to create a ZipFile from it

	// Check to see if it's a version of db2jcc.jar and if so, report the version number. 
	if (filename.indexOf("db2jcc") >= 0)
	{
	    Class c = null;
	    Method m = null;
	    Object o = null;
	    Integer build = null;
	    Integer major = null;
            Integer minor = null;
	    try 
	    {
                try 
		{
		    c = Class.forName("com.ibm.db2.jcc.DB2Driver");
		    m = c.getMethod("getJCCBuildNumber", null);
		    o = c.newInstance();
		    build = (Integer)m.invoke(o,null);
		} catch (ClassNotFoundException cnfe) {
		    c = Class.forName("com.ibm.db2.jcc.DB2Version");
		    m = c.getMethod("getBuildNumber", null);
		    o = c.newInstance();
		    build = (Integer)m.invoke(o,null);
	        } 
		m = c.getMethod("getMajorVersion", null);
		major = (Integer)m.invoke(o,null);
		m = c.getMethod("getMinorVersion", null);
		minor = (Integer)m.invoke(o,null);

		ProductVersionHolder jccVersion = ProductVersionHolder.getProductVersionHolder(
			"IBM Corp.",
			"DB2 Java Common Client",
			"DRDA:jcc",
			major.intValue(),
			minor.intValue(),
			0,
			0,
			build.toString(),
			Boolean.FALSE);

		ZipInfoProperties zip = new ZipInfoProperties(jccVersion);

        zip.setLocation(new File(filename).getCanonicalPath().replace('/', File.separatorChar));
		return zip;
            } catch (Exception e) { return null; }
	}

        try
        {
            ZipFile zf = new ZipFile(filename);
            // try to get a ZipEntry from the ZipFile

            ZipEntry thisEntry = null;

            for (int i =0; i < infoNames.length; i++)
            {
                thisEntry = zf.getEntry(infoNames[i]);
                if (thisEntry != null)
                {
                    break;
                }
            }

            if (thisEntry == null)
            {
                return null;
            }

            InputStream bis = zf.getInputStream(thisEntry);
            if (bis == null)
            {
                return null;
            }

            ZipInfoProperties zip = new ZipInfoProperties(ProductVersionHolder.getProductVersionHolderFromMyEnv(bis));
            zip.setLocation(new File(filename).getCanonicalPath().replace('/', File.separatorChar));
            return zip;

        }
        catch (IOException ioe)
        {
            //guess not
            return null;
        }

    }

	/*
	** Message handling
	*/
	private static ResourceBundle getBundle() {
		try {
			return ResourceBundle.getBundle("org.apache.derby.loc.sysinfoMessages");
		} catch (MissingResourceException mre) {
		}
		return null;
	}

	public static String getTextMessage(String msgId) {
		return getCompleteMessage(msgId, (Object[]) null);
	}
	public static String getTextMessage(String msgId, Object a1) {

		return getCompleteMessage(msgId, new Object[] {a1});
	}
	public static String getTextMessage(String msgId, Object a1, Object a2) {
		return getCompleteMessage(msgId, new Object[] {a1, a2});
	}
	public static String getTextMessage(String msgId, Object a1, Object a2, Object a3) {
		return getCompleteMessage(msgId, new Object[] {a1, a2, a3});
	}
	public static String getTextMessage(String msgId, Object a1, Object a2, Object a3, Object a4) {
		return getCompleteMessage(msgId, new Object[] {a1, a2, a3, a4});
	}

	/**
	 */
	public static String getCompleteMessage(String msgId, Object[] arguments) {

		// we have a base file (sysinfoMessages.properties) so don't give us a last chance.
		return org.apache.derby.iapi.services.i18n.MessageService.formatMessage(getBundle(), msgId, arguments, false);
	}
} // end of class Main