altosui: Move java altoslib to top level

This will be shared with other (android) java code.

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

1 files changed, 238 insertions, 0 deletions

diff --git a/altoslib/src/org/altusmetrum/AltosLib/AltosLink.java b/altoslib/src/org/altusmetrum/AltosLib/AltosLink.java
new file mode 100644
index 00000000..9b80e916
--- /dev/null
+++ b/altoslib/src/org/altusmetrum/AltosLib/AltosLink.java
@@ -0,0 +1,238 @@
+/*
+ * 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 org.altusmetrum.AltosLib;
+
+import java.lang.*;
+import java.io.*;
+import java.util.concurrent.*;
+import java.util.*;
+import java.text.*;
+
+public abstract class AltosLink {
+	public abstract void print(String data);
+	public abstract void close();
+
+	public static boolean debug = false;
+	public static void set_debug(boolean in_debug) { debug = in_debug; }
+	LinkedList<String> pending_output = new LinkedList<String>();
+
+	public LinkedList<LinkedBlockingQueue<AltosLine>> monitors = new LinkedList<LinkedBlockingQueue<AltosLine>> ();;
+	public LinkedBlockingQueue<AltosLine> reply_queue = new LinkedBlockingQueue<AltosLine>();
+
+	public void add_monitor(LinkedBlockingQueue<AltosLine> q) {
+		set_monitor(true);
+		monitors.add(q);
+	}
+
+	public void remove_monitor(LinkedBlockingQueue<AltosLine> q) {
+		monitors.remove(q);
+		if (monitors.isEmpty())
+			set_monitor(false);
+	}
+
+	public void printf(String format, Object ... arguments) {
+		String	line = String.format(format, arguments);
+		if (debug)
+			pending_output.add(line);
+		print(line);
+	}
+
+	public String get_reply_no_dialog(int timeout) throws InterruptedException, TimeoutException {
+		flush_output();
+		AltosLine line = reply_queue.poll(timeout, TimeUnit.MILLISECONDS);
+		if (line != null)
+			return line.line;
+		return null;
+	}
+
+	public String get_reply(int timeout) throws InterruptedException {
+		try {
+			return get_reply_no_dialog(timeout);
+		} catch (TimeoutException te) {
+			return null;
+		}
+	}
+
+	public String get_reply() throws InterruptedException {
+		return get_reply(5000);
+	}
+
+	public void add_telem(AltosLine line) throws InterruptedException {
+		for (int e = 0; e < monitors.size(); e++) {
+			LinkedBlockingQueue<AltosLine> q = monitors.get(e);
+			q.put(line);
+		}
+	}
+
+	public void add_reply(AltosLine line) throws InterruptedException {
+		reply_queue.put (line);
+	}
+
+	public void add_string(String line) throws InterruptedException {
+		if (line.startsWith("TELEM") || line.startsWith("VERSION") || line.startsWith("CRC")) {
+			add_telem(new AltosLine(line));
+		} else {
+			add_reply(new AltosLine(line));
+		}
+	}
+
+	public void add_bytes(byte[] bytes, int len) throws InterruptedException {
+		String	line;
+		try {
+			line = new String(bytes, 0, len, "UTF-8");
+		} catch (UnsupportedEncodingException ue) {
+			line = "";
+			for (int i = 0; i < len; i++)
+				line = line + bytes[i];
+		}
+		if (debug)
+			System.out.printf("\t\t\t\t\t%s\n", line);
+		add_string(line);
+	}
+
+	public void flush_output() {
+		for (String s : pending_output)
+			System.out.print(s);
+		pending_output.clear();
+	}
+
+	public void flush_input(int timeout) throws InterruptedException {
+		flush_output();
+		boolean	got_some;
+
+		do {
+			Thread.sleep(timeout);
+			got_some = !reply_queue.isEmpty();
+			reply_queue.clear();
+		} while (got_some);
+	}
+
+
+	public void flush_input() throws InterruptedException {
+		flush_input(100);
+	}
+
+
+	/*
+	 * Various command-level operations on
+	 * the link
+	 */
+	public boolean monitor_mode = false;
+	public int telemetry = AltosLib.ao_telemetry_standard;
+	public double frequency;
+	AltosConfigData	config_data;
+
+	private int telemetry_len() {
+		return AltosLib.telemetry_len(telemetry);
+	}
+
+	public void set_telemetry(int in_telemetry) {
+		telemetry = in_telemetry;
+		if (monitor_mode)
+			printf("m 0\nm %x\n", telemetry_len());
+		flush_output();
+	}
+
+	public void set_monitor(boolean monitor) {
+		monitor_mode = monitor;
+		if (monitor)
+			printf("m %x\n", telemetry_len());
+		else
+			printf("m 0\n");
+		flush_output();
+	}
+
+	private void set_channel(int channel) {
+		if (monitor_mode)
+			printf("m 0\nc r %d\nm %x\n",
+			       channel, telemetry_len());
+		else
+			printf("c r %d\n", channel);
+		flush_output();
+	}
+
+	private void set_radio_setting(int setting) {
+		if (monitor_mode)
+			printf("m 0\nc R %d\nm %x\n",
+			       setting, telemetry_len());
+		else
+			printf("c R %d\n", setting);
+		flush_output();
+	}
+
+	public void set_radio_frequency(double frequency,
+					boolean has_setting,
+					int cal) {
+		if (debug)
+			System.out.printf("set_radio_frequency %7.3f %b %d\n", frequency, has_setting, cal);
+		if (has_setting)
+			set_radio_setting(AltosConvert.radio_frequency_to_setting(frequency, cal));
+		else
+			set_channel(AltosConvert.radio_frequency_to_channel(frequency));
+	}
+
+	public AltosConfigData config_data() throws InterruptedException, TimeoutException {
+		if (config_data == null)
+			config_data = new AltosConfigData(this);
+		return config_data;
+	}
+
+	public void set_radio_frequency(double in_frequency) throws InterruptedException, TimeoutException {
+		frequency = in_frequency;
+		config_data();
+		set_radio_frequency(frequency,
+				    config_data.radio_setting != 0,
+				    config_data.radio_calibration);
+	}
+
+	public void set_callsign(String callsign) {
+		printf ("c c %s\n", callsign);
+		flush_output();
+	}
+
+	public boolean remote;
+	public int serial;
+	public String name;
+
+	public void start_remote() throws TimeoutException, InterruptedException {
+		if (debug)
+			System.out.printf("start remote %7.3f\n", frequency);
+		if (frequency == 0.0)
+			frequency = AltosPreferences.frequency(serial);
+		set_radio_frequency(frequency);
+		set_callsign(AltosPreferences.callsign());
+		printf("p\nE 0\n");
+		flush_input();
+		remote = true;
+	}
+
+	public void stop_remote() throws InterruptedException {
+		if (debug)
+			System.out.printf("stop remote\n");
+		try {
+			flush_input();
+		} finally {
+			printf ("~\n");
+			flush_output();
+		}
+		remote = false;
+	}
+
+	public AltosLink() {
+	}
+}