Rebuild.java

/*
GNU General Public License
CacheWolf is a software for PocketPC, Win and Linux that
enables paperless caching.
It supports the sites geocaching.com and opencaching.de

Copyright (C) 2006  CacheWolf development team
See http://www.cachewolf.de/ for more information.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
*/
package CacheWolf;

import CacheWolf.database.CacheDB;
import CacheWolf.database.CacheHolder;
import CacheWolf.utils.FileBugfix;
import CacheWolf.utils.MyLocale;
import ewe.io.FileBase;
import ewe.io.FileReader;
import ewe.io.IOException;
import ewe.sys.Handle;
import ewe.ui.ProgressBarForm;

public class Rebuild {
    private int cacheXmlVersion;

    public Rebuild() { // Public constructor
    }

    public void rebuild() {
	int i;
	CacheDB cacheDB = MainForm.profile.cacheDB;

	myProgressBarForm pbf = new myProgressBarForm();
	Handle h = new Handle();

	int count = 0;
	int nAdded = 0;
	pbf.setTask(h, "Reading Directory, be patient");
	pbf.exec();
	h.progress = (float) 0.5;
	h.changed();
	String[] CacheFiles = new FileBugfix(MainForm.profile.dataDir).list("*.xml", FileBase.LIST_FILES_ONLY | FileBase.LIST_DONT_SORT);
	pbf.setTask(h, "preparing XML-files");
	for (i = 0; i < CacheFiles.length; i++) {
	    int pos = CacheFiles[i].lastIndexOf('.');
	    if (pos < 0)
		continue;
	    String wayPoint = CacheFiles[i].substring(0, pos).toUpperCase();
	    if (wayPoint.equalsIgnoreCase("index"))
		CacheFiles[i] = null;
	    else {
		count++;
	    }
	}
	cacheDB.clear();
	pbf.setTask(h, MyLocale.getMsg(209, "Rebuilding index"));
	if (count > 0) {
	    int nProcessed = 0;
	    // Now do the actual work
	    String details = "";
	    for (i = 0; i < CacheFiles.length; i++) {
		if (CacheFiles[i] != null) {

		    nProcessed++;
		    if (nProcessed % 100 == 0) {
			h.progress = ((float) nProcessed) / (float) (count);
			h.changed();
		    }
		    int start = 0;
		    boolean doit = true;
		    try {
			FileReader in = new FileReader(MainForm.profile.dataDir + CacheFiles[i]);
			details = in.readAll();
			in.close();
			start = details.indexOf("<CACHE ");
			if (start < 0)
			    doit = false;
			else if (details.indexOf("<CACHEDETAILS>") < 0)
			    doit = false;
		    } catch (IOException e) {
			doit = false;
		    }
		    ;

		    if (doit) {
			int end;
			int vstart = details.indexOf("<VERSION value = \"");
			if (vstart >= 0) {
			    cacheXmlVersion = Integer.valueOf(details.substring(vstart + 18, details.indexOf("\"", vstart + 18))).intValue();
			} else {
			    cacheXmlVersion = 1;
			}
			end = details.indexOf("/>", start);
			CacheHolder ch = new CacheHolder(details.substring(start, end + 2), cacheXmlVersion);
			cacheDB.add(ch);
			nAdded++;
			Preferences.itself().log(ch.getCode() + " added. (" + nAdded + ")");
			// CacheFiles[i] = null;
		    } else
			Preferences.itself().log("File " + CacheFiles[i] + " not entered to index.xml");
		    ;
		}
		if (pbf.isClosed)
		    break;
	    }
	    MainForm.profile.buildReferences();
	    MainForm.profile.saveIndex(true);
	}
	pbf.exit(0);
    }

    class myProgressBarForm extends ProgressBarForm {
	boolean isClosed = false;

	protected boolean canExit(int exitCode) {
	    isClosed = true;
	    return true;
	}
    }

}