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Segments: database upgrade/downgrade functionality for version 30; version 29 is still used.

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This will store segment data in TrackPoint.type.
This commit will enable downgrading to previous version.

#316.
This commit is contained in:
Dennis Guse
2021-01-15 07:55:14 +01:00
parent 8a08e7b2b5
commit 50bb0b14b4
2 changed files with 162 additions and 0 deletions
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src/androidTest/java/de/dennisguse/opentracks/content/provider/CustomSQLiteOpenHelperTest.java
+98
View File
@@ -5,6 +5,7 @@ import android.database.Cursor;
import android.database.sqlite.SQLiteConstraintException;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.database.sqlite.SQLiteQueryBuilder;
import androidx.test.core.app.ApplicationProvider;
import androidx.test.ext.junit.runners.AndroidJUnit4;
@@ -14,7 +15,9 @@ import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import de.dennisguse.opentracks.content.data.MarkerColumns;
@@ -165,6 +168,101 @@ public class CustomSQLiteOpenHelperTest {
}
}
@Test
public void upgrade_data_to_30() {
// given: a track in version 29
createVersion23();
try (SQLiteDatabase db29 = new CustomSQLiteOpenHelper(context, DATABASE_NAME, 29).getWritableDatabase()) {
db29.beginTransaction();
db29.execSQL("INSERT INTO tracks (_id) VALUES (1)");
// Record -> stop
db29.execSQL("INSERT INTO tracks (_id) VALUES (2)");
db29.execSQL("INSERT INTO trackpoints (trackId, longitude, latitude) VALUES (2, 2.1, 2.1)");
db29.execSQL("INSERT INTO trackpoints (trackId, longitude, latitude) VALUES (2, 2.2, 2.2)");
db29.execSQL("INSERT INTO trackpoints (trackId, longitude, latitude) VALUES (2, 2.3, 2.3)");
// Record -> pause -> stop
db29.execSQL("INSERT INTO tracks (_id) VALUES (3)");
db29.execSQL("INSERT INTO trackpoints (trackId, longitude, latitude) VALUES (3, 3.1, 3.1)");
db29.execSQL("INSERT INTO trackpoints (trackId, longitude, latitude) VALUES (3, 3.2, 3.2)");
db29.execSQL("INSERT INTO trackpoints (trackId, longitude, latitude) VALUES (3, 0.0, 100)"); //manual PAUSE
// Record -> segment marker (distance to previous) -> pause -> resume -> stop
db29.execSQL("INSERT INTO tracks (_id) VALUES (4)");
db29.execSQL("INSERT INTO trackpoints (trackId, longitude, latitude) VALUES (4, 4.1, 4.1)");
db29.execSQL("INSERT INTO trackpoints (trackId, longitude, latitude) VALUES (4, 4.2, 4.2)");
db29.execSQL("INSERT INTO trackpoints (trackId, longitude, latitude) VALUES (4, 0.0, 100 * 1E6)"); //SegmentEndMarker; will be deleted
db29.execSQL("INSERT INTO trackpoints (trackId, longitude, latitude) VALUES (4, 4.3, 4.3)");
db29.execSQL("INSERT INTO trackpoints (trackId, longitude, latitude) VALUES (4, 4.4, 4.4)");
db29.execSQL("INSERT INTO trackpoints (trackId, longitude, latitude) VALUES (4, 0.0, 100 * 1E6)"); //manual PAUSE
db29.execSQL("INSERT INTO trackpoints (trackId, longitude, latitude) VALUES (4, 0.0, 200 * 1E6)"); //manual RESUME
db29.execSQL("INSERT INTO trackpoints (trackId, longitude, latitude) VALUES (4, 4.5, 4.5)");
db29.execSQL("INSERT INTO trackpoints (trackId, longitude, latitude) VALUES (4, 4.6, 4.6)");
db29.setTransactionSuccessful();
db29.endTransaction();
}
// when / then
try (SQLiteDatabase db30 = new CustomSQLiteOpenHelper(context, DATABASE_NAME, 30).getWritableDatabase()) {
{
// Track 1
SQLiteQueryBuilder queryBuilder = new SQLiteQueryBuilder();
queryBuilder.setTables("trackpoints");
queryBuilder.appendWhere("trackid = 1");
try (Cursor cursor = queryBuilder.query(db30, null, null, null, null, null, "_id")) {
assertEquals(0, cursor.getCount());
}
}
{
// Track 2
SQLiteQueryBuilder queryBuilder = new SQLiteQueryBuilder();
queryBuilder.setTables("trackpoints");
queryBuilder.appendWhere("trackid = 2");
try (Cursor cursor = queryBuilder.query(db30, null, null, null, null, null, "_id")) {
assertEquals(3, cursor.getCount());
}
}
{
// Track 3
SQLiteQueryBuilder queryBuilder = new SQLiteQueryBuilder();
queryBuilder.setTables("trackpoints");
queryBuilder.appendWhere("trackid = 3");
try (Cursor cursor = queryBuilder.query(db30, null, null, null, null, null, "_id")) {
assertEquals(3, cursor.getCount());
}
}
{
// Track 4
SQLiteQueryBuilder queryBuilder = new SQLiteQueryBuilder();
queryBuilder.setTables("trackpoints");
queryBuilder.appendWhere("trackid = 4");
try (Cursor cursor = queryBuilder.query(db30, null, null, null, null, null, "_id")) {
assertEquals(8, cursor.getCount());
List<Integer> types = new ArrayList<>();
List<Double> latitude = new ArrayList<>();
cursor.moveToFirst();
do {
types.add(cursor.getInt(cursor.getColumnIndexOrThrow("type")));
if (!cursor.isNull(cursor.getColumnIndexOrThrow("latitude"))) {
latitude.add(cursor.getDouble(cursor.getColumnIndexOrThrow("latitude")));
} else {
latitude.add(-1.0);
}
} while (cursor.moveToNext());
assertEquals(List.of(0, 0, -1, 0, 1, -2, 0, 0), types);
assertEquals(List.of(4.1, 4.2, 4.3, 4.4, -1.0, -1.0, 4.5, 4.6), latitude);
}
}
}
}
private void createVersion23() {
// Manually create database schema with version 23 (base version)
SQLiteDatabase dbBase = new SQLiteOpenHelper(context, DATABASE_NAME, null, 23) {
src/main/java/de/dennisguse/opentracks/content/provider/CustomSQLiteOpenHelper.java
+64
View File
@@ -79,6 +79,9 @@ public class CustomSQLiteOpenHelper extends SQLiteOpenHelper {
case 29:
upgradeFrom28to29(db);
break;
case 30:
upgradeFrom29to30(db);
break;
default:
throw new RuntimeException("Not implemented: upgrade to " + toVersion);
@@ -109,6 +112,9 @@ public class CustomSQLiteOpenHelper extends SQLiteOpenHelper {
case 28:
downgradeFrom29to28(db);
break;
case 29:
downgradeFrom30to29(db);
break;
default:
throw new RuntimeException("Not implemented: downgrade to " + toVersion);
@@ -330,4 +336,62 @@ public class CustomSQLiteOpenHelper extends SQLiteOpenHelper {
db.setTransactionSuccessful();
db.endTransaction();
}
/**
* Move TrackPoint type (segment start vs. segment end) into separate column.
*/
private void upgradeFrom29to30(SQLiteDatabase db) {
db.beginTransaction();
// TrackPoints
db.execSQL("ALTER TABLE trackpoints ADD COLUMN type TEXT CHECK(type IN (-2, -1, 0, 1))");
db.execSQL("UPDATE trackpoints SET type = -2, latitude = NULL, longitude = NULL WHERE latitude = 200 * 1E6");
db.execSQL("UPDATE trackpoints SET type = 1, latitude = NULL, longitude = NULL WHERE latitude = 100 * 1E6");
db.execSQL("UPDATE trackpoints SET type = 0 WHERE type IS NULL");
// PAUSE markers without RESUME were inserted automatically as segment markers if the distance between subsequent trackpoints was too great.
// Only stored data is time (local device time); not meaningful as trackpoints were stored with GPS time.
// 1. Mark there successors as SEGMENT_START_AUTOMATIC
db.execSQL(
"UPDATE trackpoints " +
"SET type = -1 " +
"WHERE type = 0 AND 1 = " +
"(SELECT type FROM trackpoints AS T1 " +
"WHERE trackpoints._id > t1._id " +
"AND trackpoints.trackid = t1.trackid " +
"ORDER BY t1._id DESC " +
"LIMIT 1)");
// 2. Delete old PAUSE trackpoint
db.execSQL(
"DELETE FROM trackpoints" +
" WHERE type = 1 AND -1 = " +
"(SELECT type FROM trackpoints AS T1 " +
"WHERE trackpoints._id < t1._id " +
"AND trackpoints.trackid = t1.trackid " +
"ORDER BY t1._id ASC " +
"LIMIT 1)");
db.setTransactionSuccessful();
db.endTransaction();
}
private void downgradeFrom30to29(SQLiteDatabase db) {
db.beginTransaction();
// TrackPoints
//TODO That does not restore deleted trackpoints
db.execSQL("UPDATE trackpoints SET latitude = 200 * 1E6, longitude = NULL WHERE type = -2");
db.execSQL("UPDATE trackpoints SET latitude = 100 * 1E6, longitude = NULL WHERE type = 1");
// TrackPoints; identical to upgradeFrom27to28()
db.execSQL("ALTER TABLE trackpoints RENAME TO trackpoints_old");
db.execSQL("CREATE TABLE trackpoints (_id INTEGER PRIMARY KEY AUTOINCREMENT, trackid INTEGER NOT NULL, longitude INTEGER, latitude INTEGER, time INTEGER, elevation FLOAT, accuracy FLOAT, speed FLOAT, bearing FLOAT, sensor_heartrate FLOAT, sensor_cadence FLOAT, sensor_power FLOAT, elevation_gain FLOAT, FOREIGN KEY (trackid) REFERENCES tracks(_id) ON UPDATE CASCADE ON DELETE CASCADE)");
db.execSQL("INSERT INTO trackpoints SELECT _id, trackid, longitude, latitude, time, elevation, accuracy, speed, bearing, sensor_heartrate, sensor_cadence, sensor_power, elevation_gain FROM trackpoints_old");
db.execSQL("DROP TABLE trackpoints_old");
db.execSQL("CREATE INDEX trackpoints_trackid_index ON trackpoints(trackid)");
db.setTransactionSuccessful();
db.endTransaction();
}
}