altosui: Add low-level Bluetooth APIs

[fw/altos] / altosui / AltosBTDevice.java

diff --git a/altosui/AltosBTDevice.java b/altosui/AltosBTDevice.java
new file mode 100644 (file)
index 0000000..8eb18bb
--- /dev/null
+++ b/altosui/AltosBTDevice.java
@@ -0,0 +1,142 @@
+/*
+ * Copyright © 2011 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; 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 altosui;
+import java.lang.*;
+import java.util.*;
+import libaltosJNI.*;
+
+public class AltosBTDevice extends altos_bt_device {
+
+       static public boolean initialized = false;
+       static public boolean loaded_library = false;
+
+       public static boolean load_library() {
+               if (!initialized) {
+                       try {
+                               System.loadLibrary("altos");
+                               libaltos.altos_init();
+                               loaded_library = true;
+                       } catch (UnsatisfiedLinkError e) {
+                               loaded_library = false;
+                       }
+                       initialized = true;
+               }
+               return loaded_library;
+       }
+
+       static String bt_product_telebt() {
+               if (load_library())
+                       return libaltosConstants.BLUETOOTH_PRODUCT_TELEBT;
+               return "TeleBT";
+       }
+
+       public final static String bt_product_telebt = bt_product_telebt();
+       public final static String bt_product_any = "Any";
+       public final static String bt_product_basestation = "Basestation";
+
+       public String getProduct() {
+               String  name = getName();
+               if (name == null)
+                       return "Altus Metrum";
+               int     dash = name.lastIndexOf("-");
+               if (dash < 0)
+                       return name;
+               return name.substring(0,dash);
+       }
+
+       public int getSerial() {
+               String name = getName();
+               if (name == null)
+                       return 0;
+               int dash = name.lastIndexOf("-");
+               if (dash < 0 || dash >= name.length())
+                       return 0;
+               String sn = name.substring(dash + 1, name.length());
+               try {
+                       return Integer.parseInt(sn);
+               } catch (NumberFormatException ne) {
+                       return 0;
+               }
+       }
+
+       public String toString() {
+               String  name = getName();
+               if (name == null)
+                       name = "Altus Metrum";
+               return String.format("%-20.20s %4d %s",
+                                    getProduct(), getSerial(), getAddr());
+       }
+
+       public String toShortString() {
+               String  name = getName();
+               if (name == null)
+                       name = "Altus Metrum";
+               return String.format("%s %d %s",
+                                    getProduct(), getSerial(), getAddr());
+
+       }
+
+       public boolean isAltusMetrum() {
+               if (getName().startsWith(bt_product_telebt))
+                       return true;
+               return false;
+       }
+
+       public boolean matchProduct(String want_product) {
+
+               if (!isAltusMetrum())
+                       return false;
+
+               if (want_product.equals(bt_product_any))
+                       return true;
+
+               if (want_product.equals(bt_product_basestation))
+                       return matchProduct(bt_product_telebt);
+
+               if (want_product.equals(getProduct()))
+                       return true;
+
+               return false;
+       }
+
+       static AltosBTDevice[] list(String product) {
+               if (!load_library())
+                       return null;
+
+               SWIGTYPE_p_altos_bt_list list = libaltos.altos_bt_list_start();
+
+               ArrayList<AltosBTDevice> device_list = new ArrayList<AltosBTDevice>();
+               if (list != null) {
+                       SWIGTYPE_p_altos_file file;
+
+                       for (;;) {
+                               AltosBTDevice device = new AltosBTDevice();
+                               if (libaltos.altos_bt_list_next(list, device) == 0)
+                                       break;
+                               if (device.matchProduct(product))
+                                       device_list.add(device);
+                       }
+                       libaltos.altos_bt_list_finish(list);
+               }
+
+               AltosBTDevice[] devices = new AltosBTDevice[device_list.size()];
+               for (int i = 0; i < device_list.size(); i++)
+                       devices[i] = device_list.get(i);
+               return devices;
+       }
+}
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