Changeset 88 for bbtracker/trunk/src/org/bbtracker/mobile/BBTracker.java

Timestamp:

08/23/07 22:15:34 (5 years ago)

Author:

saua

Message:

add logging to text file

File:

• bbtracker/trunk/src/org/bbtracker/mobile/BBTracker.java (modified) (9 diffs)

bbtracker/trunk/src/org/bbtracker/mobile/BBTracker.java

@@ -18 +18 @@
 package org.bbtracker.mobile;
 
+import java.io.OutputStream;
+import java.io.PrintStream;
+import java.util.Date;
 import java.util.Timer;
 
+import javax.microedition.io.Connector;
+import javax.microedition.io.file.FileConnection;
 import javax.microedition.lcdui.Alert;
 import javax.microedition.lcdui.AlertType;
@@ -34 +39 @@
 import org.bbtracker.mobile.TrackStore.TrackStoreException;
 import org.bbtracker.mobile.gui.MainCanvas;
+import org.bbtracker.mobile.gui.OptionsForm;
 import org.bbtracker.mobile.gui.TrackNameForm;
-import org.bbtracker.mobile.gui.OptionsForm;
 import org.bbtracker.mobile.gui.TracksForm;
 
@@ -46 +51 @@
 
         private static BBTracker instance;
+
+        private static PrintStream logStream;
 
         private final TrackManager trackManager;
@@ -80 +87 @@
                         nonFatal(e, "Initializing Location Provider", mainCanvas);
                 }
+
+                initLog();
         }
 
         public void shutdown(final boolean destroy) {
+                log(this, "shutdown " + destroy);
                 if (trackManager != null) {
                         trackManager.shutdown();
@@ -94 +104 @@
                         notifyDestroyed();
                 }
+                if (logStream != null) {
+                        logStream.close();
+                        logStream = null;
+                }
         }
 
@@ -121 +135 @@
 
         public static void nonFatal(final Throwable t, final String action, final Displayable next) {
-                log(t);
+                log(BBTracker.class, t, "non-fatal " + action);
                 final Alert alert = new Alert("Non-fatal Exception", "Non-fatal Exception while " + action + ": " +
                                 t.getMessage(), null, AlertType.WARNING);
@@ -128 +142 @@
 
         public static void fatal(final Throwable t, final String action) {
-                log(t);
+                log(BBTracker.class, t, "fatal " + action);
                 final BBTracker i = getInstance();
                 i.shutdown(false);
@@ -152 +166 @@
         }
 
-        public static void log(final Throwable e) {
+        public static void initLog() {
+                if (logStream != null) {
+                        return;
+                }
+                final String dirName = Preferences.getInstance().getTrackDirectory();
+                final String logUrl = "file:///" + dirName + "debug.txt";
+                try {
+                        final FileConnection fileConnection = (FileConnection) Connector.open(logUrl);
+                        if (!(fileConnection.exists() && fileConnection.canWrite())) {
+                                fileConnection.close();
+                                return;
+                        }
+                        final OutputStream out = fileConnection.openOutputStream();
+                        logStream = new PrintStream(out);
+                } catch (final Throwable e) {
+                        log(BBTracker.class, e, "opening " + logUrl);
+                }
+        }
+
+        public static void setLogActive(final boolean logActive) {
+                if (!logActive && logStream != null) {
+                        logStream.close();
+                        logStream = null;
+                }
+
+                final String dirName = Preferences.getInstance().getTrackDirectory();
+                final String logUrl = "file:///" + dirName + "debug.txt";
+                try {
+                        final FileConnection fileConnection = (FileConnection) Connector.open(logUrl);
+                        if (logActive) {
+                                if (!fileConnection.exists()) {
+                                        fileConnection.create();
+                                }
+                                final OutputStream out = fileConnection.openOutputStream();
+                                logStream = new PrintStream(out);
+                        } else {
+                                if (fileConnection.exists()) {
+                                        fileConnection.delete();
+                                        fileConnection.close();
+                                }
+                        }
+                } catch (final Throwable e) {
+                        log(BBTracker.class, e, "opening " + logUrl);
+                }
+        }
+
+        public static boolean isLogActive() {
+                return logStream != null;
+        }
+
+        public static void log(final Object source, final Throwable e) {
+                log(source, "Exception: " + e.toString());
+                // this is only useful for debugging in the emulator
                 e.printStackTrace();
         }
 
-        public static void log(final String m) {
-                System.err.println(m);
+        public static void log(final Object source, final Throwable e, final String message) {
+                log(source, "Exception <" + message + ">: " + e.toString());
+                // this is only useful for debugging in the emulator
+                e.printStackTrace();
+        }
+
+        public static void log(final Object source, final String m) {
+                final String line = new Date() + ": [" + source + "] " + m;
+                System.err.println(line);
+                if (logStream != null) {
+                        logStream.println(line);
+                }
         }
 
@@ -165 +241 @@
 
         protected void pauseApp() {
+                log(this, "pauseApp");
         }
 
         protected void startApp() throws MIDletStateChangeException {
+                log(this, firstStart ? "first startApp" : "startApp");
                 if (firstStart) {
                         firstStart = false;