Full Unicode database. But progress bar does not work.

The Unicode database should be populated from the assets by calling
.populate() on it: this works but, for some reason, the progress bar
does not appear.

2 files changed, 66 insertions, 39 deletions

diff --git a/src/org/madore/android/unicodeMap/UnicodeDatabase.java b/src/org/madore/android/unicodeMap/UnicodeDatabase.java
index 9dff87f..ef12b66 100644
--- a/src/org/madore/android/unicodeMap/UnicodeDatabase.java
+++ b/src/org/madore/android/unicodeMap/UnicodeDatabase.java
@@ -2,6 +2,7 @@ package org.madore.android.unicodeMap;
 
 import java.util.Iterator;
 import java.util.NoSuchElementException;
+import java.io.InputStream;
 import java.io.InputStreamReader;
 import java.io.BufferedReader;
 import java.io.IOException;
@@ -9,6 +10,8 @@ import java.io.UnsupportedEncodingException;
 import java.sql.SQLException;
 import android.content.Context;
 import android.content.res.AssetManager;
+import android.app.Activity;
+import android.app.ProgressDialog;
 import android.database.Cursor;
 import android.database.sqlite.SQLiteDatabase;
 import android.database.sqlite.SQLiteStatement;
@@ -29,42 +32,12 @@ public class UnicodeDatabase {
 	    this.context = context;
 	}
 
-	protected void parseUnicodeData(SQLiteDatabase db) {
-	    AssetManager amgr = context.getAssets();
-	    try {
-		BufferedReader rd
-		    = new BufferedReader(new InputStreamReader(amgr.open("UnicodeData.txt"),
-							       "US-ASCII"));
-		SQLiteStatement cmd
-		    = db.compileStatement("INSERT INTO "+UNICODE_TABLE_NAME
-					  +" VALUES ( ? , ? , ? )");
-		String line;
-		while ( ( line = rd.readLine() ) != null ) {
-		    String[] fields = line.split(";");
-		    int codePoint = Integer.parseInt(fields[0], 16);
-		    String name = fields[1];
-		    String category = fields[2];
-		    if ( name.charAt(0) == '<' )
-			continue;
-		    cmd.bindLong(1, codePoint);
-		    cmd.bindString(2, name);
-		    cmd.bindString(3, category);
-		    cmd.execute();
-		}
-	    } catch (UnsupportedEncodingException e) {
-		throw new AssertionError("US-ASCII encoding unsupported");
-	    } catch (IOException e) {
-		throw new RuntimeException(e);
-	    }
-	}
-
 	@Override
 	public void onCreate(SQLiteDatabase db) {
 	    db.execSQL("CREATE TABLE "+UNICODE_TABLE_NAME+" ( "
 		       +"id INTEGER PRIMARY KEY , "
 		       +"name TEXT , "
 		       +"category TEXT )");
-	    parseUnicodeData(db);
 	}
 
 	@Override
@@ -76,17 +49,71 @@ public class UnicodeDatabase {
 
     }
 
+    Activity activity;
+    DatabaseInit dbinit;
     SQLiteDatabase db;
 
-    public UnicodeDatabase(Context context) {
-	DatabaseInit dbinit = new DatabaseInit(context);
-	if ( true )
-	    db = dbinit.getReadableDatabase();
-	else {
-	    db = dbinit.getWritableDatabase();
-	    db.execSQL("DELETE FROM "+UNICODE_TABLE_NAME);
-	    dbinit.parseUnicodeData(db);
+    public UnicodeDatabase(Activity activity) {
+	this.activity = activity;
+	this.dbinit = new DatabaseInit(activity);
+	db = dbinit.getReadableDatabase();
+    }
+
+    public void populate() {
+	SQLiteDatabase db = dbinit.getWritableDatabase();
+	db.execSQL("DELETE FROM "+UNICODE_TABLE_NAME);
+	AssetManager amgr = activity.getAssets();
+	SQLiteStatement cmd
+	    = db.compileStatement("INSERT INTO "+UNICODE_TABLE_NAME
+				  +" VALUES ( ? , ? , ? )");
+	ProgressDialog progress = new ProgressDialog(activity);
+	progress.setOwnerActivity(activity);
+	progress.setTitle("Loading Unicode database");
+	progress.setMessage("Please wait");
+	progress.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
+	progress.show();
+	try {
+	    final String[] pieces = {
+		"UnicodeData-00.txt", "UnicodeData-01.txt",
+		"UnicodeData-02.txt", "UnicodeData-03.txt",
+		"UnicodeData-04.txt", "UnicodeData-05.txt",
+		"UnicodeData-06.txt", "UnicodeData-07.txt",
+		"UnicodeData-08.txt", "UnicodeData-09.txt",
+		"UnicodeData-10.txt", "UnicodeData-11.txt",
+		"UnicodeData-12.txt", "UnicodeData-13.txt",
+		"UnicodeData-14.txt", "UnicodeData-15.txt",
+		"UnicodeData-16.txt", "UnicodeData-17.txt",
+		"UnicodeData-18.txt", "UnicodeData-19.txt"
+	    };
+	    for ( int cnt=0 ; cnt<pieces.length ; cnt++ ) {
+		progress.show();
+		progress.setProgress(cnt*10000/pieces.length);
+		String file = pieces[cnt];
+		BufferedReader rd
+		    = new BufferedReader(new InputStreamReader(amgr.open(file),
+							       "US-ASCII"));
+		String line;
+		while ( ( line = rd.readLine() ) != null ) {
+		    String[] fields = line.split(";");
+		    int codePoint = Integer.parseInt(fields[0], 16);
+		    String name = fields[1];
+		    String category = fields[2];
+		    if ( name.charAt(0) == '<' )
+			continue;
+		    cmd.bindLong(1, codePoint);
+		    cmd.bindString(2, name);
+		    cmd.bindString(3, category);
+		    cmd.execute();
+		}
+		rd.close();
+	    }
+	} catch (UnsupportedEncodingException e) {
+	    throw new AssertionError("US-ASCII encoding unsupported");
+	} catch (IOException e) {
+	    throw new RuntimeException(e);
 	}
+	progress.dismiss();
+	db.close();
     }
 
     protected final static String[] queryColumns = { "id", "name", "category" };
diff --git a/src/org/madore/android/unicodeMap/UnicodeListActivity.java b/src/org/madore/android/unicodeMap/UnicodeListActivity.java
index 8f962f0..1495bbc 100644
--- a/src/org/madore/android/unicodeMap/UnicodeListActivity.java
+++ b/src/org/madore/android/unicodeMap/UnicodeListActivity.java
@@ -25,7 +25,7 @@ public final class UnicodeListActivity extends ListActivity {
     @Override
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
-	this.db = new UnicodeDatabase(getApplicationContext());
+	this.db = new UnicodeDatabase(this);
 	Intent intent = getIntent();
 	int from = intent.getIntExtra(EXTRA_FROM, 0);
 	int to = intent.getIntExtra(EXTRA_TO, from+128);