netmapreader.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.

                eventProps.put(SHAPE_FIELD, "11");
                eventProps.put(ICON_FIELD, icon);

                if (DEBUG)
                    Debug.output("NetMapReader: jimage  " + icon);
            }

            if (shape == NODE_DELETE) { // Delete

                eventProps.put(SHAPE_FIELD, NODE_DELETE_STRING);

            } else {

                if (shape == NODE_MOVE) { // move

                    // nobj 13 342 432 0 lat=42.3876343
                    // lon=-71.1457977 elev=0.00 1038000904
                    // cmd, index, posx, posy, node_move, lat, lon,
                    // elevation, time

                    eventProps.put(SHAPE_FIELD, NODE_MOVE_STRING);
                    eventProps.put(TIME_FIELD, Integer.toString(nargs[8]));

                } else {

                    // nobj 1 13 12 50 10 10 1 5 '11' 0 'NODE_11_'
                    // lat=40.0295830 lon=-74.3184204 ip=10.0.0.11
                    // cmd, index, posx, posy, icon, width, height,
                    // status (color), menu, label, joffset, name,
                    // lat, lon

                    // Define a new entry if "shape" is anything
                    // else...
                    eventProps.put(WIDTH_FIELD, Integer.toString(nargs[5]));
                    eventProps.put(HEIGHT_FIELD, Integer.toString(nargs[6]));
                    eventProps.put(STATUS_FIELD, Integer.toString(nargs[7]));
                    eventProps.put(MENU_FIELD, Integer.toString(nargs[8]));
                    eventProps.put(LABEL_FIELD, (String) v.elementAt(9));
                    eventProps.put(NAME_FIELD, (String) v.elementAt(11));
                    eventProps.put(JOFFSET_FIELD, Integer.toString(nargs[10]));
                }

                eventProps.put(POSX_FIELD, Integer.toString(nargs[2]));
                eventProps.put(POSY_FIELD, Integer.toString(nargs[3]));

                String elev = null;
                if ((elev = getVal("elev=", cmdline)) != null) {
                    eventProps.put(ELEVATION_FIELD, elev);
                }

                String geo = null;

                if ((geo = getVal("lat=", cmdline)) != null) {
                    eventProps.put(LAT_FIELD, geo);
                }

                if ((geo = getVal("lon=", cmdline)) != null) {
                    eventProps.put(LON_FIELD, geo);
                }

                if ((geo = getVal("ip=", cmdline)) != null) {
                    eventProps.put(IP_FIELD, geo);
                }

            }

        } else if (cmd.equals(NODE_OBJECT_STATUS)) {

            eventProps.put(COMMAND_FIELD, NODE_OBJECT_STATUS);
            eventProps.put(INDEX_FIELD, Integer.toString(nargs[1]));
            eventProps.put(STATUS_FIELD, Integer.toString(nargs[2]));

        } else if (cmd.equals(LINK_OBJECT_STATUS)) {

            eventProps.put(COMMAND_FIELD, LINK_OBJECT_STATUS);
            eventProps.put(INDEX_FIELD, Integer.toString(nargs[1]));
            eventProps.put(STATUS_FIELD, Integer.toString(nargs[2]));

        } else if (cmd.equals(LINK_OBJECT)) {

            eventProps.put(COMMAND_FIELD, LINK_OBJECT);
            eventProps.put(INDEX_FIELD, Integer.toString(nargs[1]));
            eventProps.put(SHAPE_FIELD, Integer.toString(nargs[2]));

            if (shape != -1) {
                eventProps.put(STATUS_FIELD, Integer.toString(nargs[5]));
                eventProps.put(LINK_NODE1_FIELD, Integer.toString(nargs[3]));
                eventProps.put(LINK_NODE2_FIELD, Integer.toString(nargs[4]));
            }
        } else if (cmd.equals(REFRESH)) {
            eventProps.put(COMMAND_FIELD, REFRESH);
        } else if (cmd.equals(UPDATE)) {
            eventProps.put(COMMAND_FIELD, UPDATE);
        }

        return eventProps;
    }

    /**
     * Given a line, break it up into a Vector representing the String
     * parts, and the int[] containing the number parts. The Vector
     * will contain String represenations of the numbers. Should be
     * called before procline() is called, and in fact is called from
     * within procline().
     */
    protected Vector tokenize(String line) {
        Object ob;

        Vector v = new Vector(12, 10);

        unitInit(new StringReader(line));

        int cnt = 0;
        while ((ob = unit()) != EOF) {
            v.addElement(ob);

            if (ob instanceof Double)
                nargs[cnt] = ((Number) ob).intValue();
            else
                nargs[cnt] = 0;

            cnt++;
        }
        return v;
    }

    /**
     * Initialize the StringTokenizer.
     */
    protected void unitInit(StringReader rdr) {
        st = new StreamTokenizer(rdr);

        st.commentChar('%');
        st.slashSlashComments(true);
        st.slashStarComments(true);

        st.wordChars('/', '/'); // disable default special handling
        st.wordChars('=', '='); // disable default special handling
        st.wordChars(':', ':'); // disable default special handling
    }

    /**
     * Break the next token into an Object, with some addition
     * semantic functionality to interpret EOF and parenthesis.
     */
    protected Object unit() {
        Object p = next();
        if (p == EOF)
            return EOF;

        if (p == LP) {
            Object r;
            Vector l = new Vector(2, 4);

            while (true) {
                r = unit();

                if (r == RP)
                    return l;

                if (r == EOF)
                    return EOF;

                l.addElement(r);
            }
        }

        return p;
    }

    /**
     * Break the next token into an Object.
     */
    protected Object next() {
        int i = 0;
        char[] c;

        try {
            i = st.nextToken();
        } catch (IOException e) {
            Debug.error("NetMapReader: " + e.toString() + " in toktest\n");
        }

        if ((i == StreamTokenizer.TT_EOF) || (i == 0))
            return EOF;

        if (i == StreamTokenizer.TT_WORD)
            return new Symbol(st.sval, 1);

        if ((i == '\'') || (i == '\"'))
            return st.sval;

        if (i == StreamTokenizer.TT_NUMBER)
            return new Double(st.nval);

        if ((i == '(') || (i == '[') || (i == '{'))
            return LP;

        if ((i == ')') || (i == ']') || (i == '}'))
            return RP;

        c = new char[1];
        c[0] = (char) i;

        return new Symbol(new String(c), 2);
    }

    protected String getVal(String marker, String line) {
        int sTok = 0;
        int eTok = 0;

        if ((sTok = line.toLowerCase().indexOf(marker)) < 0)
            return null;

        if (((eTok = line.indexOf(" ", sTok)) < 0)
                && ((eTok = line.indexOf("\t", sTok)) < 0)) {
            eTok = line.length();
        }

        return (line.substring(sTok + marker.length(), eTok));
    }

    // All this stuff below may be used later for more JMAP
    // integration...

    //     jicon jget(String name) {
    //      jicon x = (jicon)jicons.get(name);

    //      if (x == null) {
    //          x = new jicon(name);
    //          jicons.put(name, x);

    //          x.icon = can.loadImage("images/"+name);

    //          if (jmap.on && jmap.dbgmode)
    //              System.err.println("new jicon " + name + " " + x.icon);
    //      }

    //      return x;
    //     }

    /**
     * Got a response from our cexec request
     */
    //     private void cexec(String a) {
    //      f.status("exec " + a); // show message in status line
    //      try {
    //          Runtime.getRuntime().exec(a);
    //      } catch(IOException err) {
    //          if (jmap.on)
    //              System.err.println(err.toString());
    //      }
    //     }
    /**
     * Got a response from our cshow request
     */
    //     public void cshow(String url) {
    //      // show message in status line
    //      f.status("show " + url);
    //      try {
    //          AppletContext apcon = jmap.getAppletContext();

    //          if (url.substring(0, 2).equals("r ")) { // relative
    //              apcon.showDocument(new URL(jmap.getDocumentBase(),
    //                                         url.substring(2)));
    //          }
    //          else
    //              apcon.showDocument(new URL(url));
    //      } catch (java.net.MalformedURLException err) {
    //          if (jmap.on)
    //              System.err.println(err.toString());
    //      }
    //     }
    /**
     * We got a popup menu from NetMap that we had requested a bit
     * ago. jmenu 2 SNMP (('show name' MCMD 'echo $NAME') ('ping' MCMD
     * 'pingf $NAME'))
     */
    //     private void jmenu(String line) {
    //      PopupMenu tmenuh;
    //      int type = nargs[ 1 ];
    //      if (jmap.on && jmap.dbgmode)
    //          System.err.println("Got jmenu type " + type);
    //      Vector l;
    //      Vector r = new Vector(4, 4);

    //      if (f.pmenu[ type ] == null) { // if not already saved
    //          // create menu; store it in our global array
    //          l = (Vector)v.elementAt(3);
    //          tmenuh = new PopupMenu(v.elementAt(2).toString());
    //          popupButtons(tmenuh, l, r);
    //          f.pmenu[ type ] = tmenuh;
    //          f.pmenuV[ type ] = r;
    //          can.add(tmenuh);
    //      }
    //      if (f.tmenutypeDesired == type) { // if still desired
    //          // install menu in ourjmap window
    //          f.tmenu = f.pmenu[ type ];
    //          f.tmenutype = type;
    //          f.tmenutypeDesired = 0;
    //          f.tmenu.show(can, f.tmenux, f.tmenuy);
    //      }
    //     }
    //     private void jpulldowns(String line) {
    //      if (pulldowns)
    //          return; // already have pulldowns; skip this
    //      pulldowns = true;
    //      Menu tmenuh;
    //      int type = nargs[1 ];
    //      Vector l;
    //      Vector r= new Vector(4, 4);
    //      Vector g = (Vector)v.elementAt(1);
    //      Enumeration e = g.elements();
    //      while (e.hasMoreElements()) {
    //          tmenuh = new Menu(e.nextElement().toString());
    //          l = (Vector)e.nextElement();
    //          popupButtons(tmenuh, l, r);
    //          f.mb.add(tmenuh);
    //      }
    //      f.pulldownV = r; // save action data for menu operations
    //     }
    /**
     * Recursively create menu from list specification Vector r is
     * result lookup list to correlate MenuItem with details
     */
    //     private void popupButtons(Menu menu, Vector l, Vector r) {
    //      Object ob, ob2;
    //      int i;
    //      Vector m;
    //      Menu submenu;
    //      MenuItem mi;
    //      for (i = 0; i < l.size(); i++) {
    //          m = (Vector)l.elementAt(i);
    //          ob = m.elementAt(0);
    //          ob2 = m.elementAt(1);
    //          if (ob2 instanceof Symbol) {
    //              mi = new MenuItem((String)ob);
    //              m.setElementAt(mi, 0);
    //              // replace first element with MenuItem
    //              menu.add(mi);
    //              // save for use by jmapFrame event handler
    //              r.addElement(m);
    //          }
    //          else if (ob2 instanceof Vector) {
    //              submenu = new Menu((String)ob);
    //              menu.add(submenu);
    //              m.removeElementAt(0);
    //              popupButtons(submenu, m, r);
    //          }
    //          else if (jmap.on && jmap.dbgmode)
    //              System.err.println("Invalid menu item " + m);
    //      }
    //      menu.addActionListener(f);
    //     }
    //     // got a response from our mcmd request
    //     private void mcmd(String a) {
    //      // f.status(a); // show message in status line
    //      if ((v.size() > 4) &&
    //          (v.elementAt(1).toString().equals("host"))) {
    //          String b = v.elementAt(5).toString();
    //          /*
    //            if (b.equals("Up"))
    //            new jmapSoundPlayer(f.jmap, "up.au");
    //            else if (b.equals("not"))
    //            new jmapSoundPlayer(f.jmap, "noanswer.au");
    //          */
    //      }
    //     }
}