git.gag.com Git - fw/altos/blob - altoslib/AltosLaunchSites.java

   1 /*
   2  * Copyright © 2015 Keith Packard <keithp@keithp.com>
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful, but
  10  * WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along
  15  * with this program; if not, write to the Free Software Foundation, Inc.,
  16  * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
  17  */
  18
  19 package org.altusmetrum.altoslib_14;
  20
  21 import java.io.*;
  22 import java.lang.*;
  23 import java.util.*;
  24 import java.util.concurrent.*;
  25 import java.net.*;
  26 import java.text.*;
  27
  28 public class AltosLaunchSites extends Thread {
  29         URL                             url;
  30         LinkedList<AltosLaunchSite>     sites;
  31         AltosLaunchSiteListener         listener;
  32
  33         public static String            launch_sites_url;
  34
  35         void notify_complete() {
  36                 listener.notify_launch_sites(sites);
  37         }
  38
  39         void add(AltosLaunchSite site) {
  40                 sites.add(site);
  41         }
  42
  43         void add(String line) {
  44                 try {
  45                         add(new AltosLaunchSite(line));
  46                 } catch (ParseException pe) {
  47                         System.out.printf("parse exception %s\n", pe.toString());
  48                 }
  49         }
  50
  51         public void run() {
  52                 try {
  53                         String  path;
  54
  55                         if (launch_sites_url != null)
  56                                 path = launch_sites_url;
  57                         else {
  58                                 path = System.getenv(AltosLib.launch_sites_env);
  59                                 if (path == null)
  60                                         path = AltosLib.launch_sites_url;
  61                         }
  62                         url = new URL(path);
  63                         URLConnection uc = url.openConnection();
  64
  65                         InputStreamReader in_stream = new InputStreamReader(uc.getInputStream(), AltosLib.unicode_set);
  66                         BufferedReader in = new BufferedReader(in_stream);
  67
  68                         for (;;) {
  69                                 String line = in.readLine();
  70                                 if (line == null)
  71                                         break;
  72                                 add(line);
  73                         }
  74                 } catch (Exception e) {
  75                         System.out.printf("file exception %s\n", e.toString());
  76                 } finally {
  77                         notify_complete();
  78                 }
  79         }
  80
  81         public AltosLaunchSites(AltosLaunchSiteListener listener) {
  82                 sites = new LinkedList<AltosLaunchSite>();
  83                 this.listener = listener;
  84                 start();
  85         }
  86 }