From 519d477cb752d9cdba78a4daa32b1f547bf889b4 Mon Sep 17 00:00:00 2001 From: Keith Packard Date: Wed, 27 May 2015 15:30:29 -0700 Subject: [PATCH] altoslib: Add AltosLaunchSite bits This asynchronously fetches the list of available launch sites from the standard location and notifies the caller when finished. Signed-off-by: Keith Packard --- altoslib/AltosLaunchSite.java | 57 +++++++++++++++++++++ altoslib/AltosLaunchSiteListener.java | 26 ++++++++++ altoslib/AltosLaunchSites.java | 73 +++++++++++++++++++++++++++ altoslib/Makefile.am | 3 ++ 4 files changed, 159 insertions(+) create mode 100644 altoslib/AltosLaunchSite.java create mode 100644 altoslib/AltosLaunchSiteListener.java create mode 100644 altoslib/AltosLaunchSites.java diff --git a/altoslib/AltosLaunchSite.java b/altoslib/AltosLaunchSite.java new file mode 100644 index 00000000..70a4bb58 --- /dev/null +++ b/altoslib/AltosLaunchSite.java @@ -0,0 +1,57 @@ +/* + * Copyright © 2015 Keith Packard + * + * 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., + * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. + */ + +package org.altusmetrum.altoslib_7; + +import java.io.*; +import java.lang.*; +import java.util.*; +import java.text.*; +import java.util.concurrent.*; + +public class AltosLaunchSite { + public String name; + public double latitude; + public double longitude; + + public String toString() { + return name; + } + + public AltosLaunchSite(String in_name, double in_latitude, double in_longitude) { + name = in_name; + latitude = in_latitude; + longitude = in_longitude; + } + + public AltosLaunchSite(String line) throws ParseException { + String[] elements = line.split(":"); + + if (elements.length < 3) + throw new ParseException(String.format("Invalid site line %s", line), 0); + + name = elements[0]; + + try { + latitude = AltosParse.parse_double_net(elements[1]); + longitude = AltosParse.parse_double_net(elements[2]); + } catch (ParseException pe) { + throw new ParseException(String.format("Invalid site line %s", line), 0); + } + } +} + diff --git a/altoslib/AltosLaunchSiteListener.java b/altoslib/AltosLaunchSiteListener.java new file mode 100644 index 00000000..21015909 --- /dev/null +++ b/altoslib/AltosLaunchSiteListener.java @@ -0,0 +1,26 @@ +/* + * Copyright © 2015 Keith Packard + * + * 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., + * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. + */ +package org.altusmetrum.altoslib_7; + +import java.io.*; +import java.lang.*; +import java.util.*; +import java.util.concurrent.*; + +public interface AltosLaunchSiteListener { + public abstract void notify_launch_sites(List sites); +} diff --git a/altoslib/AltosLaunchSites.java b/altoslib/AltosLaunchSites.java new file mode 100644 index 00000000..0922bcea --- /dev/null +++ b/altoslib/AltosLaunchSites.java @@ -0,0 +1,73 @@ +/* + * Copyright © 2015 Keith Packard + * + * 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., + * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. + */ + +package org.altusmetrum.altoslib_7; + +import java.io.*; +import java.lang.*; +import java.util.*; +import java.util.concurrent.*; +import java.net.*; +import java.text.*; + +public class AltosLaunchSites extends Thread { + URL url; + LinkedList sites; + AltosLaunchSiteListener listener; + + void notify_complete() { + listener.notify_launch_sites(sites); + } + + void add(AltosLaunchSite site) { + sites.add(site); + } + + void add(String line) { + try { + add(new AltosLaunchSite(line)); + } catch (ParseException pe) { + System.out.printf("parse exception %s\n", pe.toString()); + } + } + + public void run() { + try { + url = new URL(AltosLib.launch_sites_url); + URLConnection uc = url.openConnection(); + + InputStreamReader in_stream = new InputStreamReader(uc.getInputStream(), AltosLib.unicode_set); + BufferedReader in = new BufferedReader(in_stream); + + for (;;) { + String line = in.readLine(); + if (line == null) + break; + add(line); + } + } catch (Exception e) { + } finally { + notify_complete(); + } + } + + public AltosLaunchSites(AltosLaunchSiteListener listener) { + sites = new LinkedList(); + this.listener = listener; + start(); + } +} diff --git a/altoslib/Makefile.am b/altoslib/Makefile.am index 481c974f..de13c1ec 100644 --- a/altoslib/Makefile.am +++ b/altoslib/Makefile.am @@ -151,6 +151,9 @@ altoslib_JAVA = \ AltosRectangle.java \ AltosFlightDisplay.java \ AltosFontListener.java \ + AltosLaunchSite.java \ + AltosLaunchSiteListener.java \ + AltosLaunchSites.java \ AltosVersion.java JAR=altoslib_$(ALTOSLIB_VERSION).jar -- 2.30.2