altoslib: Add missing AltosUnitInfo files

Signed-off-by: Keith Packard <keithp@keithp.com>

diff --git a/altoslib/AltosUnitInfo.java b/altoslib/AltosUnitInfo.java
new file mode 100644 (file)
index 0000000..2a9f470
--- /dev/null
+++ b/altoslib/AltosUnitInfo.java
@@ -0,0 +1,106 @@
+/*
+ * Copyright © 2018 Keith Packard <keithp@keithp.com>
+ *
+ * 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, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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 org.altusmetrum.altoslib_13;
+
+import java.io.*;
+import java.lang.*;
+import java.util.*;
+import java.util.concurrent.*;
+import java.net.*;
+import java.text.*;
+
+public class AltosUnitInfo extends Thread {
+       int                     sn;
+       int                     rfcal;
+       AltosUnitInfoListener   listener;
+       String                  json_string;
+
+       public int sn() {
+               return sn;
+       }
+
+       public int rfcal() {
+               return rfcal;
+       }
+
+       void add(String line) {
+               if (json_string == null) {
+                       json_string = line;
+               } else {
+                       json_string = json_string + "\n" + line;
+               }
+       }
+
+       void notify_complete() {
+               rfcal = AltosLib.MISSING;
+
+               if (json_string != null) {
+                       System.out.printf("json_string: %s\n", json_string);
+                       AltosJson json = AltosJson.fromString(json_string);
+                       System.out.printf("json: %s\n", json);
+                       String rfcal_string = null;
+                       try {
+                               AltosJson unitinfo = json.get("unitinfo");
+                               rfcal_string = unitinfo.get_string("rfcal", null);
+                               if (rfcal_string != null)
+                                       rfcal = Integer.parseInt(rfcal_string);
+                       } catch (NumberFormatException ne) {
+                               System.out.printf("mal-formed integer %s\n", rfcal_string);
+                       } catch (IllegalArgumentException ie) {
+                               System.out.printf("mal-formed json\n");
+                       }
+               }
+               listener.notify_unit_info(this);
+       }
+
+       public void run() {
+               try {
+                       String  format;
+
+                       format = System.getenv(AltosLib.unit_info_env);
+                       if (format == null)
+                               format = AltosLib.unit_info_url;
+
+                       String path = String.format(format, sn);
+
+                       URL url = new URL(path);
+
+                       System.out.printf("URL: %s\n", path);
+
+                       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) {
+                       System.out.printf("file exception %s\n", e.toString());
+               } finally {
+                       notify_complete();
+               }
+       }
+
+       public AltosUnitInfo(int sn, AltosUnitInfoListener listener) {
+               this.listener = listener;
+               this.sn = sn;
+               this.rfcal = AltosLib.MISSING;
+               start();
+       }
+}

diff --git a/altoslib/AltosUnitInfoListener.java b/altoslib/AltosUnitInfoListener.java
new file mode 100644 (file)
index 0000000..3753df4
--- /dev/null
+++ b/altoslib/AltosUnitInfoListener.java
@@ -0,0 +1,19 @@
+/*
+ * Copyright © 2018 Keith Packard <keithp@keithp.com>
+ *
+ * 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, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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 org.altusmetrum.altoslib_13;
+
+public interface AltosUnitInfoListener {
+       public abstract void notify_unit_info(AltosUnitInfo unit_info);
+}