dtedadmin.java

openmap java写的开源数字地图程序. 用applet实现,可以像google map 那样放大缩小地图.

        return frames;
    }

    /**
     * Get the internal frame list and copy those frames to the given
     * directory.
     * 
     * @return true if everything went OK, false if not enough
     *         information is available to create a source file list.
     */
    public boolean copyTo(String todteddir) {
        return copyTo(getFrameList(), todteddir);
    }

    /**
     * Get the internal frame list and copy those frames to the given
     * directory.
     * 
     * @param files a LinkedList of Files to copy.
     * @param todteddir a dted directory to copy files into.
     * @return true if everything went OK, false if not enough
     *         information is available to create a source file list.
     */
    protected boolean copyTo(LinkedList files, String todteddir) {
        if (files == null) {
            Debug.error("No files configured for copying!");
            return false;
        }

        Iterator it = files.iterator();

        while (it.hasNext()) {

            File file = (File) it.next();
            DTEDNameTranslator dnt = locator.getTranslator();

            try {
                dnt.set(file.getAbsolutePath());

                String dsd = dnt.getSubDirs();
                if (dsd != null && dsd.length() > 0) {
                    dsd = "/" + dsd;
                }

                File toDir = new File(todteddir + dsd);
                if (!toDir.exists()) {
                    toDir.mkdirs();
                }

                File outputFile = new File(toDir, dnt.getFileName());

                if (Debug.debugging("dted")) {
                    Debug.output("DTEDAdmin copying " + file.getAbsolutePath()
                            + " to " + outputFile.getAbsolutePath());
                }

                BinaryBufferedFile input = new BinaryBufferedFile(file);
                RandomAccessFile output = new RandomAccessFile(outputFile, "rw");
                byte[] bytes = new byte[4096];
                int numBytes = input.read(bytes);
                while (numBytes > 0) {
                    output.write(bytes, 0, numBytes);
                    numBytes = input.read(bytes);
                }

                input.close();
                output.close();

            } catch (FormatException fe) {
                continue;
            } catch (IOException ioe) {
                continue;
            }
        }
        return true;
    }

    /**
     * Delete the DTED files that meet the internal file list
     * parameters.
     * 
     * @return true if everything went OK, false if not enough
     *         information is available to create a source file list.
     */
    public boolean remove() {
        return remove(getFrameList());
    }

    /**
     * Delete the DTED files that meet the internal file list
     * parameters.
     * 
     * @param files the LinkedList of File objects representing DTED
     *        frame files.
     * @return true if everything went OK, false if not enough
     *         information is available to create a source file list.
     */
    protected boolean remove(LinkedList files) {
        if (files == null) {
            Debug.error("No files configured for removal!");
            return false;
        }

        Iterator it = files.iterator();
        while (it.hasNext()) {
            File file = (File) it.next();
            Debug.output("DTEDAdmin deleting " + file.getAbsolutePath());
            file.delete();
        }
        return true;
    }

    /**
     * Print out a list of DTED files that meet the current internal
     * parameters.
     */
    public boolean query() {
        return query(getFrameList());
    }

    /**
     * Print out a list of DTED files that are on the provided list of
     * File objects.
     */
    protected boolean query(LinkedList files) {
        if (files == null) {
            Debug.error("No files configured for query!");
            return false;
        }

        Iterator it = files.iterator();
        while (it.hasNext()) {
            File file = (File) it.next();
            Debug.output("  " + file.getAbsolutePath());
        }
        return true;
    }

    /**
     * Run DTEDAdmin from the command line.
     */
    public static void main(String[] argv) {
        Debug.init();

        ArgParser ap = new ArgParser("DTEDAdmin");
        ap.add("boundary", "upper lat, left lon, lower lat, right lon", 4, true);
        ap.add("copy", "Copy files to DTED directory.", 1);
        ap.add("level",
                "DTED level to consider (0, 1, 2), 0 is default.  Needs to be set for other levels.",
                1);
        ap.add("outside", "Use files outside boundary.");
        ap.add("query", "Print out files that meet parameters.");
        ap.add("remove", "Delete DTED files.");
        ap.add("source", "The source DTED directory path.", 1);
        ap.add("verbose", "Print out progress.");

        if (!ap.parse(argv)) {
            ap.printUsage();
            System.exit(0);
        }

        String arg[];
        String sourceDir = null;

        arg = ap.getArgValues("source");
        if (arg != null) {
            sourceDir = arg[0];
        }

        boolean inside = true;
        arg = ap.getArgValues("outside");
        if (arg != null) {
            inside = false;
        }

        int level = 0;
        arg = ap.getArgValues("level");
        if (arg != null) {
            try {
                level = Integer.parseInt(arg[0]);
            } catch (NumberFormatException nfe) {
                level = 0;
            }
        }

        arg = ap.getArgValues("verbose");
        if (arg != null) {
            Debug.put("dted");
        }

        DTEDAdmin admin = null;
        double ullat = 89;
        double ullon = -180;
        double lrlat = -90;
        double lrlon = 179;

        arg = ap.getArgValues("boundary");
        if (arg != null) {
            try {
                ullat = Double.parseDouble(arg[0]);
                ullon = Double.parseDouble(arg[1]);
                lrlat = Double.parseDouble(arg[2]);
                lrlon = Double.parseDouble(arg[3]);
            } catch (NumberFormatException nfe1) {
                Debug.error("DTEDAdmin: boundary coordinates not valid:\n"
                        + "  " + arg[0] + "\n  " + arg[1] + "\n  " + arg[2]
                        + "\n  " + arg[3]);
                System.exit(0);
            }
        }

        if (sourceDir != null) {
            admin = new DTEDAdmin(sourceDir, ullat, ullon, lrlat, lrlon, level, inside, DTEDAdmin.DTED_EQUAL_LEVELS);
        }

        arg = ap.getArgValues("copy");
        if (arg != null) {
            if (admin != null) {
                admin.copyTo(arg[0]);
            } else {
                Debug.error("DTEDAdmin:  frame parameters not set for copy.  Need source directory");
                System.exit(0);
            }
        }

        arg = ap.getArgValues("query");
        if (arg != null) {
            if (admin != null) {
                Debug.output("DTED frame files found:");
                admin.query();
            } else {
                Debug.error("DTEDAdmin:  frame parameters not set for query.  Need source directory");
                System.exit(0);
            }
        }

        arg = ap.getArgValues("remove");
        if (arg != null) {
            if (admin != null) {
                Debug.output("These files will be deleted:");
                admin.query();
                Debug.output("Are you sure you want to delete them? [y/N]");
                int answer = 'n';
                try {
                    answer = System.in.read();
                } catch (IOException ioe) {
                }

                if (answer == 'Y' || answer == 'y') {
                    admin.remove();
                } else {
                    Debug.output("File removal aborted.");
                }
            } else {
                Debug.error("DTEDAdmin:  frame parameters not set for copy.  Need source directory");
                System.exit(0);
            }

        }

    }

}