Subversion Repositories mkgmap

/*
 * Copyright (C) 2009.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 3 or
 * version 2 as published by the Free Software Foundation.
 *
 * 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.
 */
package uk.me.parabola.mkgmap.combiners;

import java.io.IOException;

import uk.me.parabola.imgfmt.ExitException;
import uk.me.parabola.imgfmt.Utils;
import uk.me.parabola.imgfmt.mdxfmt.MdxFile;
import uk.me.parabola.mkgmap.CommandArgs;

/**
 * Create the mdx file which is basically just a list of maps in a set.
 * It is required for use with the global index file (mdr).
 *
 * @author Steve Ratcliffe
 */
public class MdxBuilder implements Combiner {
        private MdxFile mdx;
        private String mdxFilename;
        private String outputDir;

        public void init(CommandArgs args) {
                int familyId = args.get("family-id", CommandArgs.DEFAULT_FAMILYID);
                int productId = args.get("product-id", 1);

                mdxFilename = args.get("overview-mapname", "osm") + ".mdx";
                mdx = new MdxFile(familyId, productId);
               
                outputDir = args.getOutputDir();
        }

        public void onMapEnd(FileInfo info) {
                if (!info.isImg())
                        return;

                mdx.addMap(info.getMapnameAsInt(), info.getHexname(),
                                info.getFilename());
        }

        public void onFinish() {
                try {
                        mdx.write(Utils.joinPath(outputDir, mdxFilename));
                } catch (IOException e) {
                        throw new ExitException("Could not create MDX file", e);
                }
        }

        @Override
        public String getFilename() {
                return Utils.joinPath(outputDir, mdxFilename);
        }
}